The IOC4 is a multi-function chip seen on SGI SN2 and some SGI MIPS
systems. This removes the base driver, which while not having an SN2
Kconfig dependency was only for sub-drivers that had one.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lkml.kernel.org/r/20190813072514.23299-15-hch@lst.de
Signed-off-by: Tony Luck <tony.luck@intel.com>
clang warns:
arch/mips/mm/tlbex.c:634:19: error: use of logical '&&' with constant
operand [-Werror,-Wconstant-logical-operand]
if (cpu_has_rixi && _PAGE_NO_EXEC) {
^ ~~~~~~~~~~~~~
arch/mips/mm/tlbex.c:634:19: note: use '&' for a bitwise operation
if (cpu_has_rixi && _PAGE_NO_EXEC) {
^~
&
arch/mips/mm/tlbex.c:634:19: note: remove constant to silence this
warning
if (cpu_has_rixi && _PAGE_NO_EXEC) {
~^~~~~~~~~~~~~~~~
1 error generated.
Explicitly cast this value to a boolean so that clang understands we
intend for this to be a non-zero value.
Fixes: 00bf1c691d ("MIPS: tlbex: Avoid placing software PTE bits in Entry* PFN fields")
Link: https://github.com/ClangBuiltLinux/linux/issues/609
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: clang-built-linux@googlegroups.com
clang warns:
arch/mips/include/asm/syscall.h:136:3: error: variable 'ret' is
uninitialized when used here [-Werror,-Wuninitialized]
ret |= mips_get_syscall_arg(args++, task, regs, i++);
^~~
arch/mips/include/asm/syscall.h:129:9: note: initialize the variable
'ret' to silence this warning
int ret;
^
= 0
1 error generated.
It's not wrong; however, it's not an issue in practice because ret is
only assigned to, not read from. ret could just be initialized to zero
but looking into it further, ret has been unused since it was first
added in 2012 so just get rid of it and update mips_get_syscall_arg's
return type since none of the return values are ever checked. If it is
ever needed again, this commit can be reverted and ret can be properly
initialized.
Fixes: c0ff3c53d4 ("MIPS: Enable HAVE_ARCH_TRACEHOOK.")
Link: https://github.com/ClangBuiltLinux/linux/issues/604
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: clang-built-linux@googlegroups.com
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJdTfRfAAoJEL/70l94x66DcN0IAIwyaU2+kwP0jd2miQuKxgwl
WU4u7dZCoQC6meWEVmrSJIVMBONRubmZ9iCqT7807YP8YZSQpOth51FMbULUWuy1
VW1eaRwqidX0EAihDhg2ZbBZ8H6RQ9Fn0aiEEh44dAZZAwGSVnO3PRKvQEJ15xjk
q+OQ4hrxtoorwLj+myejmq3YenTFTCMMJfYwwvlCl+J1FfrLZi5k3X5Gjk+j8Ixd
8CL8/6u5Lu6MCgfYVvxvo8/bUPiATBdF1sWJMMALwXTrDiSy4tQRD0NvZP1HM8G1
hy0XnhgtsS9rWNLtAFOj+r/XhP9V5lOOGX8yBcj0XQQr+DC9MG6MCL+pXXOaMcA=
=ZZh8
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"Bugfixes (arm and x86) and cleanups"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
selftests: kvm: Adding config fragments
KVM: selftests: Update gitignore file for latest changes
kvm: remove unnecessary PageReserved check
KVM: arm/arm64: vgic: Reevaluate level sensitive interrupts on enable
KVM: arm: Don't write junk to CP15 registers on reset
KVM: arm64: Don't write junk to sysregs on reset
KVM: arm/arm64: Sync ICH_VMCR_EL2 back when about to block
x86: kvm: remove useless calls to kvm_para_available
KVM: no need to check return value of debugfs_create functions
KVM: remove kvm_arch_has_vcpu_debugfs()
KVM: Fix leak vCPU's VMCS value into other pCPU
KVM: Check preempted_in_kernel for involuntary preemption
KVM: LAPIC: Don't need to wakeup vCPU twice afer timer fire
arm64: KVM: hyp: debug-sr: Mark expected switch fall-through
KVM: arm64: Update kvm_arm_exception_class and esr_class_str for new EC
KVM: arm: vgic-v3: Mark expected switch fall-through
arm64: KVM: regmap: Fix unexpected switch fall-through
KVM: arm/arm64: Introduce kvm_pmu_vcpu_init() to setup PMU counter index
Merge the Ingenic TCU patchset from the ingenic-tcu-v5.4 branch which
was created to enable follow-on changes in other subsystems.
Signed-off-by: Paul Burton <paul.burton@mips.com>
The old clocksource/timer platform code is now obsoleted by the newly
introduced TCU drivers.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: od@zcrc.me
The default clock (12 MHz) is too fast for the system timer.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: od@zcrc.me
The default clock (48 MHz) is too fast for the system timer.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: od@zcrc.me
The default clock (12 MHz) is too fast for the system timer, which fails
to report time accurately.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: od@zcrc.me
Add DTS nodes for the JZ4780, JZ4770 and JZ4740 devicetree files.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: od@zcrc.me
The generic vdso support adds the same #if hack in two places,
asm/vdso/vdso.h and config-n32-o32-env.c, but only the second
is actually used. The result lacks the BUILD_VDSO32_64 macro,
and that triggers a build error:
./include/linux/page-flags-layout.h:95:2: error: #error "Not enough bits in page flags"
Move the macro into the other place, and remove the duplicated
bits.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Fixes: ee38d94a0a ("page flags: prioritize kasan bits over last-cpuid")
Fixes: 24640f233b ("mips: Add support for generic vDSO")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The cpu_has_saa feature macro was added along with Cavium Octeon CPU
support back in commit 5b3b16880f ("MIPS: Add Cavium OCTEON processor
support files to arch/mips/cavium-octeon.") but has never been used.
Remove the dead code.
Signed-off-by: Paul Burton <paul.burton@mips.com>
- Various switch fall through annotations to fixup warnings & errors
resulting from -Wimplicit-fallthrough.
- A fix for systems (at least jazz) using an i8253 PIT as clocksource
when it's not suitably configured.
- Set struct cacheinfo's cpu_map_populated field to true, indicating
that we filled in cache info detected from cop0 registers & avoiding
complaints about that info being (intentionally) missing in
devicetree.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXUnSPBUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN2u3gD/TaMPczS5027R0FMXskiroUHaMG4S
JL0EYIVmfny4vwYBAIvLr5l1jEXEqegjYXFabuI5PybQlFmTZMhjauh6gKYJ
=e6fl
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.3_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A few MIPS fixes for 5.3:
- Various switch fall through annotations to fixup warnings & errors
resulting from -Wimplicit-fallthrough.
- A fix for systems (at least jazz) using an i8253 PIT as clocksource
when it's not suitably configured.
- Set struct cacheinfo's cpu_map_populated field to true, indicating
that we filled in cache info detected from cop0 registers &
avoiding complaints about that info being (intentionally) missing
in devicetree"
* tag 'mips_fixes_5.3_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: BCM63XX: Mark expected switch fall-through
MIPS: OProfile: Mark expected switch fall-throughs
MIPS: Annotate fall-through in Cavium Octeon code
MIPS: Annotate fall-through in kvm/emulate.c
mips: fix cacheinfo
MIPS: kernel: only use i8253 clocksource with periodic clockevent
Mark switch cases where we are expecting to fall through.
This patch fixes the following warning (Building: bcm63xx_defconfig mips):
arch/mips/pci/ops-bcm63xx.c: In function ‘bcm63xx_pcie_can_access’:
arch/mips/pci/ops-bcm63xx.c:474:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if (PCI_SLOT(devfn) == 0)
^
arch/mips/pci/ops-bcm63xx.c:477:2: note: here
default:
^~~~~~~
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-mips@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
There is no need for this function as all arches have to implement
kvm_arch_create_vcpu_debugfs() no matter what. A #define symbol
let us actually simplify the code.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
ARM64 randdconfig builds regularly run into a build error, especially
when NUMA_BALANCING and SPARSEMEM are enabled but not SPARSEMEM_VMEMMAP:
#error "KASAN: not enough bits in page flags for tag"
The last-cpuid bits are already contitional on the available space, so
the result of the calculation is a bit random on whether they were
already left out or not.
Adding the kasan tag bits before last-cpuid makes it much more likely to
end up with a successful build here, and should be reliable for
randconfig at least, as long as that does not randomize NR_CPUS or
NODES_SHIFT but uses the defaults.
In order for the modified check to not trigger in the x86 vdso32 code
where all constants are wrong (building with -m32), enclose all the
definitions with an #ifdef.
[arnd@arndb.de: build fix]
Link: http://lkml.kernel.org/r/CAK8P3a3Mno1SWTcuAOT0Wa9VS15pdU6EfnkxLbDpyS55yO04+g@mail.gmail.com
Link: http://lkml.kernel.org/r/20190722115520.3743282-1-arnd@arndb.de
Link: https://lore.kernel.org/lkml/20190618095347.3850490-1-arnd@arndb.de/
Fixes: 2813b9c029 ("kasan, mm, arm64: tag non slab memory allocated via pagealloc")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The __SYSCALL macro's arguments are system call number,
system call entry name and number of arguments for the
system call.
Argument- nargs in __SYSCALL(nr, entry, nargs) is neither
calculated nor used anywhere. So it would be better to
keep the implementaion as __SYSCALL(nr, entry). This will
unifies the implementation with some other architetures
too.
Signed-off-by: Firoz Khan <firoz.khan@linaro.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: y2038@lists.linaro.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: arnd@arndb.de
Cc: deepa.kernel@gmail.com
Cc: marcin.juszkiewicz@linaro.org
Remove all the source files that are not used anywhere anymore.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Update the defconfig to select the new drivers instead of the old ones.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Move all the platform data to devicetree.
The only bit dropped is the PWM beeper, which requires the PWM driver
to be updated. I figured it's okay to remove it here since it's really
a non-critical device, and it'll be re-introduced soon enough.
The other change is the CS line of the SPI is now set as active low. The
SPI core would have forced "active low" anyway, unless the 'spi-cs-high'
property is set.
In the process of moving to devicetree, we also switched to new drivers:
- We use the simple-audio-card and simple-amplifier drivers instead of
the custom ASoC code;
- We use the new Ingenic DRM driver coupled with the GiantPlus GPM940B0
DRM panel driver instead of the old framebuffer driver;
- We use the new jz4780-dma driver instead of the old jz4740-dma one;
- We use the ingenic-nand and jz4740-ecc drivers instead of the old
jz4740-nand driver;
- We use ingenic-battery instead of jz4740-battery;
- We use iio-hwmon instead of jz4740-hwmon;
- We use ingenic-iio instead of the old jz4740-adc MFD driver.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
[paul.burton@mips.com:
Drop the unused & undocumented ili8960 spi@0 node.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Add nodes for the MMC, AIC, ADC, CODEC, MUSB, LCD, memory,
and BCH controllers.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Signed-off-by: Paul Burton <paul.burton@mips.com>
HAVE_LATENCYTOP_SUPPORT was removed all together in commit da48d094ce
("Kconfig: remove HAVE_LATENCYTOP_SUPPORT"). This commit removes a
leftover in the MIPS Kconfig.
Signed-off-by: Fabian Mewes <architekt@coding4coffee.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Mark switch cases where we are expecting to fall through.
This patch fixes the following warning (Building: mips):
arch/mips/oprofile/op_model_mipsxx.c: In function ‘mipsxx_cpu_stop’:
arch/mips/oprofile/op_model_mipsxx.c:217:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfctrl3(0);
^~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:218:2: note: here
case 3:
^~~~
arch/mips/oprofile/op_model_mipsxx.c:219:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfctrl2(0);
^~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:220:2: note: here
case 2:
^~~~
arch/mips/oprofile/op_model_mipsxx.c:221:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfctrl1(0);
^~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:222:2: note: here
case 1:
^~~~
arch/mips/oprofile/op_model_mipsxx.c: In function ‘mipsxx_cpu_start’:
arch/mips/oprofile/op_model_mipsxx.c:197:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfctrl3(WHAT | reg.control[3]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:198:2: note: here
case 3:
^~~~
arch/mips/oprofile/op_model_mipsxx.c:199:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfctrl2(WHAT | reg.control[2]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:200:2: note: here
case 2:
^~~~
arch/mips/oprofile/op_model_mipsxx.c:201:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfctrl1(WHAT | reg.control[1]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:202:2: note: here
case 1:
^~~~
arch/mips/oprofile/op_model_mipsxx.c: In function ‘reset_counters’:
arch/mips/oprofile/op_model_mipsxx.c:299:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfcntr3(0);
^~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:300:2: note: here
case 3:
^~~~
arch/mips/oprofile/op_model_mipsxx.c:302:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfcntr2(0);
^~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:303:2: note: here
case 2:
^~~~
arch/mips/oprofile/op_model_mipsxx.c:305:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfcntr1(0);
^~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:306:2: note: here
case 1:
^~~~
arch/mips/oprofile/op_model_mipsxx.c: In function ‘mipsxx_perfcount_handler’:
arch/mips/oprofile/op_model_mipsxx.c:242:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if ((control & MIPS_PERFCTRL_IE) && \
^
arch/mips/oprofile/op_model_mipsxx.c:248:2: note: in expansion of macro ‘HANDLE_COUNTER’
HANDLE_COUNTER(3)
^~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:239:2: note: here
case n + 1: \
^
arch/mips/oprofile/op_model_mipsxx.c:249:2: note: in expansion of macro ‘HANDLE_COUNTER’
HANDLE_COUNTER(2)
^~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:242:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if ((control & MIPS_PERFCTRL_IE) && \
^
arch/mips/oprofile/op_model_mipsxx.c:249:2: note: in expansion of macro ‘HANDLE_COUNTER’
HANDLE_COUNTER(2)
^~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:239:2: note: here
case n + 1: \
^
arch/mips/oprofile/op_model_mipsxx.c:250:2: note: in expansion of macro ‘HANDLE_COUNTER’
HANDLE_COUNTER(1)
^~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:242:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
if ((control & MIPS_PERFCTRL_IE) && \
^
arch/mips/oprofile/op_model_mipsxx.c:250:2: note: in expansion of macro ‘HANDLE_COUNTER’
HANDLE_COUNTER(1)
^~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:239:2: note: here
case n + 1: \
^
arch/mips/oprofile/op_model_mipsxx.c:251:2: note: in expansion of macro ‘HANDLE_COUNTER’
HANDLE_COUNTER(0)
^~~~~~~~~~~~~~
CC usr/include/linux/pmu.h.s
arch/mips/oprofile/op_model_mipsxx.c: In function ‘mipsxx_cpu_setup’:
arch/mips/oprofile/op_model_mipsxx.c:174:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfcntr3(reg.counter[3]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:175:2: note: here
case 3:
^~~~
arch/mips/oprofile/op_model_mipsxx.c:177:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfcntr2(reg.counter[2]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:178:2: note: here
case 2:
^~~~
arch/mips/oprofile/op_model_mipsxx.c:180:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
w_c0_perfcntr1(reg.counter[1]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/mips/oprofile/op_model_mipsxx.c:181:2: note: here
case 1:
^~~~
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Robert Richter <rric@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: oprofile-list@lists.sf.net
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Running "make" on an already compiled kernel tree will rebuild the
vdso library even if this has not been modified.
$ make
GEN Makefile
Using linux as source for kernel
CALL linux/scripts/atomic/check-atomics.sh
CALL linux/scripts/checksyscalls.sh
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
CHK include/generated/compile.h
VDSO arch/mips/vdso/vdso.so.dbg.raw
OBJCOPY arch/mips/vdso/vdso.so.raw
GENVDSO arch/mips/vdso/vdso-image.c
CC arch/mips/vdso/vdso-image.o
AR arch/mips/vdso/built-in.a
AR arch/mips/built-in.a
CHK include/generated/autoksyms.h
GEN .version
CHK include/generated/compile.h
UPD include/generated/compile.h
CC init/version.o
AR init/built-in.a
LD vmlinux.o
MODPOST vmlinux.o
MODINFO modules.builtin.modinfo
KSYM .tmp_kallsyms1.o
KSYM .tmp_kallsyms2.o
LD vmlinux
SORTEX vmlinux
SYSMAP System.map
Building modules, stage 2.
ITS arch/mips/boot/vmlinux.gz.its
OBJCOPY arch/mips/boot/vmlinux.bin
MODPOST 7 modules
GZIP arch/mips/boot/vmlinux.bin.gz
ITB arch/mips/boot/vmlinux.gz.itb
The issue is generated by the fact that "if_changed" is called twice
in a single target.
Fix the build bug merging the two commands into a single function.
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
The vdso library for o32 and n32 does not compile compile correctly when
building outside of the source tree due to a wrong inclusion path for
config-n32-o32-env.c resulting in the error below:
cc1: fatal error: arch/mips/vdso/config-n32-o32-env.c:
No such file or dnirectory
compilation terminated.
arch/mips/vdso/Makefile:153: recipe for target
'arch/mips/vdso/vgettimeofday-o32.o' failed
make[3]: *** [arch/mips/vdso/vgettimeofday-o32.o] Error 1
scripts/Makefile.build:490: recipe for target 'arch/mips/vdso' failed
Fix the config-n32-o32-env.c inclusion path prepending the $(srctree)
variable.
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
[paul.burton@mips.com: Note that this occurs specifically when building
outside of the source tree.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
The Netgear R6200 v1 uses a BCM4718A1 SOC and a BCM4352/BCM4360 for 5GHz
wireless. This patch adds support for detecting this model board and
registers the 3 buttons.
I have tested that the device can boot kernels 4.14 and 4.19 under
OpenWRT.
There is one issue that the LEDs on the device are controlled by a
74HC164 that uses bit-banging instead of SPI so it isn't accessible to
the kernel without adding a workaround. Without any workaround the
device on boot will flash all LEDs once then the power LED will remain
amber as all other LEDs stay off.
Signed-off-by: Edward Matijevic <motolav@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
[paul.burton@mips.com:
- Sort bcm47xx_board_list_board_id alphabetically by board type.
- Fix whitespace.
- Wrap commit message & drop OpenWRT-based justification for
bcm47xx_board_list_board_id being mis-sorted.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
With the release of Linux 5.1 has been added a new syscall,
clock_gettime64, that provided a 64 bit time value for a specified
clock_ID to make the kernel Y2038 safe on 32 bit architectures.
Update the mips32 specific vDSO library accordingly with what it has
been done for the kernel syscall exposing the clock_gettime64 entry
point.
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
The generic vDSO library provides an implementation of clock_getres()
that can be leveraged by each architecture.
Add clock_getres() entry point on mips.
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
The mips vDSO library requires some adaptations to take advantage of the
newly introduced generic vDSO library.
Introduce the following changes:
- Modification of vdso.c to be compliant with the common vdso datapage
- Use of lib/vdso for gettimeofday
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
[paul.burton@mips.com: Prepend $(src) to config-n32-o32-env.c path.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Our R8000 CPU support can only be included if a system selects
CONFIG_SYS_HAS_CPU_R8000. No system does, making all R8000-related CPU
support dead code. Remove it.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
R5432_CP0_INTERRUPT_WAR is defined as 0 for every system we support, and
so the workaround is never used. Remove the dead code.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Our R5432 CPU support can only be included if a system selects
CONFIG_SYS_HAS_CPU_R5432. No system does, making all R5432-related CPU
support dead code. Remove it.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Our R4300 CPU support can only be included if a system selects
CONFIG_SYS_HAS_CPU_R4300. No system does, making all R4300-related CPU
support dead code. Remove it.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Move the MMC configuration from the board C file to devicetree.
The 'power' GPIO was removed and instead the vmmc regulator is used,
to follow the changes introduced in the jz4740-mmc driver.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Now that we have a driver for the clock controller, add nodes to allow
devices to make use of it.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-clk@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
XBurst misses a config2 register, so config3 decode was skipped in
decode_configs().
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The real name of the CPU present in the JZ line of SoCs from Ingenic is
XBurst, not JZRISC.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
[paul.burton@mips.com: Leave /proc/cpuinfo string as-is.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
During an update long ago to conform to 4-level page code, PMD_ORDER was
changed from 0 to 1, despite the fact that a PMD table is not used at
all in a 32-bit MIPS build. PMD_ORDER does not seem to be used in these
builds. Now, it matches PUD_ORDER, a nonsense #define to give a build
failure with informative error.
The older commit that had redefined PMD_ORDER was
commit c6e8b58771 ("Update MIPS to use the 4-level pagetable code
thereby getting rid of the compacrapability headers.")
Signed-off-by: Daniel Silsby <dansilsby@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The Ingenic jz47xx SoC series of 32-bit MIPS CPUs support huge pages.
Signed-off-by: Daniel Silsby <dansilsby@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
We now have partial 32-bit MIPS huge page support, so there's no need
to restrict these config options only to 64-bit systems.
Signed-off-by: Daniel Silsby <dansilsby@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
This adds initial support for huge pages to 32-bit MIPS systems.
Systems with extended addressing enabled (EVA,XPA,Alchemy/Netlogic)
are not yet supported.
With huge pages enabled, this implementation will increase page table
memory overhead to match that of a 64-bit MIPS system. However, the
cache-friendliness of page table walks is not affected significantly.
Signed-off-by: Daniel Silsby <dansilsby@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
In preparation for 32-bit MIPS huge page support.
EVA,XPA are extended-addressing modes for 32-bit MIPS systems. Because
huge pages aren't currently supported in 32-bit MIPS, this doesn't take
any features away from EVA,XPA-enabled systems. However, the soon-to-
come 32-bit MIPS huge page support doesn't yet support them.
This also disables CPU_SUPPORTS_HUGEPAGES for the small number of 32-bit
MIPS CPUs from Alchemy/Netlogic that support a custom 36-bit extended
addressing. It's unknown if they even support huge pages in hardware.
Signed-off-by: Daniel Silsby <dansilsby@gmail.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
There's an intentional switch case fall-through in Cavium Octeon USB
code, which triggers compile errors with -Wimplicit-fallthrough due to
-Werror being enabled for arch/mips.
This can be encountered when building cavium_octeon_defconfig.
Fix the build issue by annotating the intentional fall-through.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
kvm_compute_return_epc contains a switch statement with an intentional
fall-through from a case handling jal (jump and link) instructions to
one handling j (jump) instructions. With -Wimplicit-fallthrough this
triggers a compile error (due to -Werror being enabled for arch/mips).
This can be reproduced using malta_kvm_defconfig.
Fix this by annotating the intentional fall-through.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Because CONFIG_OF defined for MIPS, cacheinfo attempts to fill information
from DT, ignoring data filled by architecture routine. This leads to error
reported
cacheinfo: Unable to detect cache hierarchy for CPU 0
Way to fix this provided in
commit fac5148257 ("drivers: base: cacheinfo: fix x86 with
CONFIG_OF enabled")
Utilize same mechanism to report that cacheinfo set by architecture
specific function
Signed-off-by: Vladimir Kondratiev <vladimir.kondratiev@linux.intel.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
i8253 clocksource needs a free running timer. This could only
be used, if i8253 clockevent is set up as periodic.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
side. The two main highlights in the core framework are the addition of an bulk
clk_get API that handles optional clks and an extra debugfs file that tells the
developer about the current parent of a clk.
The driver updates are dominated by i.MX in the diffstat, but that is mostly
because that SoC has started converting to the clk_hw style of clk
registration. The next big update is in the Amlogic meson clk driver that
gained some support for audio, cpu, and temperature clks while fixing some PLL
issues. Finally, the biggest thing that stands out is the conversion of a large
part of the Allwinner sunxi-ng driver to the new clk parent scheme that uses
less strings and more pointer comparisons to match clk parents and children up.
In general, it looks like we have a lot of little fixes and tweaks here and
there to clk data along with the normal addition of a handful of new drivers
and a couple new core framework features.
Core:
- Add a 'clk_parent' file in clk debugfs
- Add a clk_bulk_get_optional() API (with devm too)
New Drivers:
- Support gated clk controller on MIPS based BCM63XX SoCs
- Support SiLabs Si5341 and Si5340 chips
- Support for CPU clks on Raspberry Pi devices
- Audsys clock driver for MediaTek MT8516 SoCs
Updates:
- Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
- Small frequency support for SiLabs Si544 chips
- Slow clk support for AT91 SAM9X60 SoCs
- Remove dead code in various clk drivers (-Wunused)
- Support for Marvell 98DX1135 SoCs
- Get duty cycle of generic pwm clks
- Improvement in mmc phase calculation and cleanup of some rate defintions
- Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
- Add GPIO, SNVS and GIC clocks for i.MX8 drivers
- Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
- Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
- Add clks for new Exynos5422 Dynamic Memory Controller driver
- Clock definition for Exynos4412 Mali
- Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
- Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
- TI clock probing done from DT by default instead of firmware
- Fix Amlogic Meson mpll fractional part and spread sprectrum issues
- Add Amlogic meson8 audio clocks
- Add Amlogic g12a temperature sensors clocks
- Add Amlogic g12a and g12b cpu clocks
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
- Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
- Add Clock Domain support on Renesas RZ/N1
-----BEGIN PGP SIGNATURE-----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=mK0C
-----END PGP SIGNATURE-----
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This round of clk driver and framework updates is heavy on the driver
update side. The two main highlights in the core framework are the
addition of an bulk clk_get API that handles optional clks and an
extra debugfs file that tells the developer about the current parent
of a clk.
The driver updates are dominated by i.MX in the diffstat, but that is
mostly because that SoC has started converting to the clk_hw style of
clk registration. The next big update is in the Amlogic meson clk
driver that gained some support for audio, cpu, and temperature clks
while fixing some PLL issues. Finally, the biggest thing that stands
out is the conversion of a large part of the Allwinner sunxi-ng driver
to the new clk parent scheme that uses less strings and more pointer
comparisons to match clk parents and children up.
In general, it looks like we have a lot of little fixes and tweaks
here and there to clk data along with the normal addition of a handful
of new drivers and a couple new core framework features.
Core:
- Add a 'clk_parent' file in clk debugfs
- Add a clk_bulk_get_optional() API (with devm too)
New Drivers:
- Support gated clk controller on MIPS based BCM63XX SoCs
- Support SiLabs Si5341 and Si5340 chips
- Support for CPU clks on Raspberry Pi devices
- Audsys clock driver for MediaTek MT8516 SoCs
Updates:
- Convert a large portion of the Allwinner sunxi-ng driver to new clk parent scheme
- Small frequency support for SiLabs Si544 chips
- Slow clk support for AT91 SAM9X60 SoCs
- Remove dead code in various clk drivers (-Wunused)
- Support for Marvell 98DX1135 SoCs
- Get duty cycle of generic pwm clks
- Improvement in mmc phase calculation and cleanup of some rate defintions
- Switch i.MX6 and i.MX7 clock drivers to clk_hw based APIs
- Add GPIO, SNVS and GIC clocks for i.MX8 drivers
- Mark imx6sx/ul/ull/sll MMDC_P1_IPG and imx8mm DRAM_APB as critical clock
- Correct imx7ulp nic1_bus_clk and imx8mm audio_pll2_clk clock setting
- Add clks for new Exynos5422 Dynamic Memory Controller driver
- Clock definition for Exynos4412 Mali
- Add CMM (Color Management Module) clocks on Renesas R-Car H3, M3-N, E3, and D3
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas RZ/G2M
- Support for 32 bit clock IDs in TI's sci-clks for J721e SoCs
- TI clock probing done from DT by default instead of firmware
- Fix Amlogic Meson mpll fractional part and spread sprectrum issues
- Add Amlogic meson8 audio clocks
- Add Amlogic g12a temperature sensors clocks
- Add Amlogic g12a and g12b cpu clocks
- Add TPU (Timer Pulse Unit / PWM) clocks on Renesas R-Car H3, M3-W, and M3-N
- Add CMM (Color Management Module) clocks on Renesas R-Car M3-W
- Add Clock Domain support on Renesas RZ/N1"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (190 commits)
clk: consoldiate the __clk_get_hw() declarations
clk: sprd: Add check for return value of sprd_clk_regmap_init()
clk: lochnagar: Update DT binding doc to include the primary SPDIF MCLK
clk: Add Si5341/Si5340 driver
dt-bindings: clock: Add silabs,si5341
clk: clk-si544: Implement small frequency change support
clk: add BCM63XX gated clock controller driver
devicetree: document the BCM63XX gated clock bindings
clk: at91: sckc: use dedicated functions to unregister clock
clk: at91: sckc: improve error path for sama5d4 sck registration
clk: at91: sckc: remove unnecessary line
clk: at91: sckc: improve error path for sam9x5 sck register
clk: at91: sckc: add support to free slow clock osclillator
clk: at91: sckc: add support to free slow rc oscillator
clk: at91: sckc: add support to free slow oscillator
clk: rockchip: export HDMIPHY clock on rk3228
clk: rockchip: add watchdog pclk on rk3328
clk: rockchip: add clock id for hdmi_phy special clock on rk3228
clk: rockchip: add clock id for watchdog pclk on rk3328
clk: at91: sckc: add support for SAM9X60
...
- Removal of readq & writeq for MIPS32 kernels where they would simply
BUG() anyway, allowing drivers or other code that #ifdefs on their
presence to work properly.
- Improvements for Ingenic JZ4740 systems, including support for the
external memory controller & pinmuxing fixes for qi_lb60/NanoNote
systems.
- Improvements for Lantiq systems, in particular around SMP & IPIs.
- DT updates for ralink/MediaTek MT7628a systems to probe & configure a
bunch more devices.
- Miscellaneous cleanups & build fixes.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXS85dBUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN2yJwEA6SUzzTXdywxEy78Ala3tzghMjkD5
818q6a9DREGofyIA/ie08di/MIYS9++ETsaQemVXoe7KT333+SgTeXCb1lIJ
=RiKE
-----END PGP SIGNATURE-----
Merge tag 'mips_5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
"A light batch this time around but significant improvements for
certain systems:
- Removal of readq & writeq for MIPS32 kernels where they would
simply BUG() anyway, allowing drivers or other code that #ifdefs on
their presence to work properly.
- Improvements for Ingenic JZ4740 systems, including support for the
external memory controller & pinmuxing fixes for qi_lb60/NanoNote
systems.
- Improvements for Lantiq systems, in particular around SMP & IPIs.
- DT updates for ralink/MediaTek MT7628a systems to probe & configure
a bunch more devices.
- Miscellaneous cleanups & build fixes"
* tag 'mips_5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (30 commits)
MIPS: fix some more fall through errors in arch/mips
MIPS: perf events: handle switch statement falling through warnings
mips/kprobes: Export kprobe_fault_handler()
MAINTAINERS: Add myself as Ingenic SoCs maintainer
MIPS: ralink: mt7628a.dtsi: Add watchdog controller DT node
MIPS: ralink: mt7628a.dtsi: Add SPI controller DT node
MIPS: ralink: mt7628a.dtsi: Add GPIO controller DT node
MIPS: ralink: mt7628a.dtsi: Add pinctrl DT properties to the UART nodes
MIPS: ralink: mt7628a.dtsi: Add pinmux DT node
MIPS: ralink: mt7628a.dtsi: Add SPDX GPL-2.0 license identifier
MIPS: lantiq: Add SMP support for lantiq interrupt controller
MIPS: lantiq: Shorten register names, remove unused macros
MIPS: lantiq: Fix bitfield masking
MIPS: lantiq: Remove unused macros
MIPS: lantiq: Fix attributes of of_device_id structure
MIPS: lantiq: Change variables to the same type as the source
MIPS: lantiq: Move macro directly to iomem function
mips: Remove q-accessors from non-64bit platforms
FDDI: defza: Include linux/io-64-nonatomic-lo-hi.h
MIPS: configs: Remove useless UEVENT_HELPER_PATH
...
Merge more updates from Andrew Morton:
"VM:
- z3fold fixes and enhancements by Henry Burns and Vitaly Wool
- more accurate reclaimed slab caches calculations by Yafang Shao
- fix MAP_UNINITIALIZED UAPI symbol to not depend on config, by
Christoph Hellwig
- !CONFIG_MMU fixes by Christoph Hellwig
- new novmcoredd parameter to omit device dumps from vmcore, by
Kairui Song
- new test_meminit module for testing heap and pagealloc
initialization, by Alexander Potapenko
- ioremap improvements for huge mappings, by Anshuman Khandual
- generalize kprobe page fault handling, by Anshuman Khandual
- device-dax hotplug fixes and improvements, by Pavel Tatashin
- enable synchronous DAX fault on powerpc, by Aneesh Kumar K.V
- add pte_devmap() support for arm64, by Robin Murphy
- unify locked_vm accounting with a helper, by Daniel Jordan
- several misc fixes
core/lib:
- new typeof_member() macro including some users, by Alexey Dobriyan
- make BIT() and GENMASK() available in asm, by Masahiro Yamada
- changed LIST_POISON2 on x86_64 to 0xdead000000000122 for better
code generation, by Alexey Dobriyan
- rbtree code size optimizations, by Michel Lespinasse
- convert struct pid count to refcount_t, by Joel Fernandes
get_maintainer.pl:
- add --no-moderated switch to skip moderated ML's, by Joe Perches
misc:
- ptrace PTRACE_GET_SYSCALL_INFO interface
- coda updates
- gdb scripts, various"
[ Using merge message suggestion from Vlastimil Babka, with some editing - Linus ]
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (100 commits)
fs/select.c: use struct_size() in kmalloc()
mm: add account_locked_vm utility function
arm64: mm: implement pte_devmap support
mm: introduce ARCH_HAS_PTE_DEVMAP
mm: clean up is_device_*_page() definitions
mm/mmap: move common defines to mman-common.h
mm: move MAP_SYNC to asm-generic/mman-common.h
device-dax: "Hotremove" persistent memory that is used like normal RAM
mm/hotplug: make remove_memory() interface usable
device-dax: fix memory and resource leak if hotplug fails
include/linux/lz4.h: fix spelling and copy-paste errors in documentation
ipc/mqueue.c: only perform resource calculation if user valid
include/asm-generic/bug.h: fix "cut here" for WARN_ON for __WARN_TAINT architectures
scripts/gdb: add helpers to find and list devices
scripts/gdb: add lx-genpd-summary command
drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl
kernel/pid.c: convert struct pid count to refcount_t
drivers/rapidio/devices/rio_mport_cdev.c: NUL terminate some strings
select: shift restore_saved_sigmask_unless() into poll_select_copy_remaining()
select: change do_poll() to return -ERESTARTNOHAND rather than -EINTR
...
syscall_get_error() is required to be implemented on all architectures
in addition to already implemented syscall_get_nr(),
syscall_get_arguments(), syscall_get_return_value(), and
syscall_get_arch() functions in order to extend the generic ptrace API
with PTRACE_GET_SYSCALL_INFO request.
Link: http://lkml.kernel.org/r/20190510152803.GC28558@altlinux.org
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Acked-by: Paul Burton <paul.burton@mips.com>
Cc: Elvira Khabirova <lineprinter@altlinux.org>
Cc: Eugene Syromyatnikov <esyr@redhat.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greentime Hu <greentime@andestech.com>
Cc: Helge Deller <deller@gmx.de> [parisc]
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: kbuild test robot <lkp@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vincent Chen <deanbo422@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Architectures which support kprobes have very similar boilerplate around
calling kprobe_fault_handler(). Use a helper function in kprobes.h to
unify them, based on the x86 code.
This changes the behaviour for other architectures when preemption is
enabled. Previously, they would have disabled preemption while calling
the kprobe handler. However, preemption would be disabled if this fault
was due to a kprobe, so we know the fault was not due to a kprobe
handler and can simply return failure.
This behaviour was introduced in commit a980c0ef9f ("x86/kprobes:
Refactor kprobes_fault() like kprobe_exceptions_notify()")
[anshuman.khandual@arm.com: export kprobe_fault_handler()]
Link: http://lkml.kernel.org/r/1561133358-8876-1-git-send-email-anshuman.khandual@arm.com
Link: http://lkml.kernel.org/r/1560420444-25737-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
isa_page_to_bus() is deprecated and is no longer used anywhere. Remove
it entirely.
Link: http://lkml.kernel.org/r/20190613161155.16946-1-steve@sk2.org
Signed-off-by: Stephen Kitt <steve@sk2.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-----BEGIN PGP SIGNATURE-----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=smxY
-----END PGP SIGNATURE-----
Merge tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull rst conversion of docs from Mauro Carvalho Chehab:
"As agreed with Jon, I'm sending this big series directly to you, c/c
him, as this series required a special care, in order to avoid
conflicts with other trees"
* tag 'docs/v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (77 commits)
docs: kbuild: fix build with pdf and fix some minor issues
docs: block: fix pdf output
docs: arm: fix a breakage with pdf output
docs: don't use nested tables
docs: gpio: add sysfs interface to the admin-guide
docs: locking: add it to the main index
docs: add some directories to the main documentation index
docs: add SPDX tags to new index files
docs: add a memory-devices subdir to driver-api
docs: phy: place documentation under driver-api
docs: serial: move it to the driver-api
docs: driver-api: add remaining converted dirs to it
docs: driver-api: add xilinx driver API documentation
docs: driver-api: add a series of orphaned documents
docs: admin-guide: add a series of orphaned documents
docs: cgroup-v1: add it to the admin-guide book
docs: aoe: add it to the driver-api book
docs: add some documentation dirs to the driver-api book
docs: driver-model: move it to the driver-api book
docs: lp855x-driver.rst: add it to the driver-api book
...
Fix these errors:
arch/mips/cavium-octeon/executive/cvmx-pko.c:489:7: error: this statement may fall through [-Werror=implicit-fallthrough=]
arch/mips/bcm63xx/dev-flash.c:89:3: error: this statement may fall through [-Werror=implicit-fallthrough=]
arch/mips/ath79/setup.c:155:17: error: this statement may fall through [-Werror=implicit-fallthrough=]
arch/mips/ar7/setup.c:50:3: error: this statement may fall through [-Werror=implicit-fallthrough=]
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Crispin <john@phrozen.org>
Cc: Matthias Schiffer <mschiffer@universe-factory.net>
Cc: "Petr Štetiar" <ynezz@true.cz>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Converts ARM the text files to ReST, preparing them to be an
architecture book.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by Corentin Labbe <clabbe.montjoie@gmail.com> # For sun4i-ss
Now that we build with -Wimplicit-fallthrough=3, some warnings are
produced in the arch/mips perf events code that are promoted to errors:
arch/mips/kernel/perf_event_mipsxx.c:792:3: error: this statement may fall through [-Werror=implicit-fallthrough=]
arch/mips/kernel/perf_event_mipsxx.c:795:3: error: this statement may fall through [-Werror=implicit-fallthrough=]
arch/mips/kernel/perf_event_mipsxx.c:798:3: error: this statement may fall through [-Werror=implicit-fallthrough=]
arch/mips/kernel/perf_event_mipsxx.c:1407:6: error: this statement may fall through [-Werror=implicit-fallthrough=]
Assume the fall throughs are deliberate amd annotate/eliminate them.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
[paul.burton@mips.com:
- Make n signed to fix the loop condition.
- Simplify the initialization of n, which should never have a value
greater than 4.
- Invert conditions in the loop to decrease indentation.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
The asm-generic changes for 5.3 consist of a cleanup series from
Christoph Hellwig, who explains:
"asm-generic/ptrace.h is a little weird in that it doesn't actually
implement any functionality, but it provided multiple layers of macros
that just implement trivial inline functions. We implement those
directly in the few architectures and be off with a much simpler
design."
Link: https://lore.kernel.org/lkml/20190624054728.30966-1-hch@lst.de/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=jkfI
-----END PGP SIGNATURE-----
Merge tag 'asm-generic-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"The asm-generic changes for 5.3 consist of a cleanup series to remove
ptrace.h from Christoph Hellwig, who explains:
'asm-generic/ptrace.h is a little weird in that it doesn't actually
implement any functionality, but it provided multiple layers of
macros that just implement trivial inline functions. We implement
those directly in the few architectures and be off with a much
simpler design.'
at https://lore.kernel.org/lkml/20190624054728.30966-1-hch@lst.de/"
* tag 'asm-generic-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: remove ptrace.h
x86: don't use asm-generic/ptrace.h
sh: don't use asm-generic/ptrace.h
powerpc: don't use asm-generic/ptrace.h
arm64: don't use asm-generic/ptrace.h
* support for chained PMU counters in guests
* improved SError handling
* handle Neoverse N1 erratum #1349291
* allow side-channel mitigation status to be migrated
* standardise most AArch64 system register accesses to msr_s/mrs_s
* fix host MPIDR corruption on 32bit
* selftests ckleanups
x86:
* PMU event {white,black}listing
* ability for the guest to disable host-side interrupt polling
* fixes for enlightened VMCS (Hyper-V pv nested virtualization),
* new hypercall to yield to IPI target
* support for passing cstate MSRs through to the guest
* lots of cleanups and optimizations
Generic:
* Some txt->rST conversions for the documentation
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJdJzdIAAoJEL/70l94x66DQDoH/i83/8kX4I8AWDlushPru4ts
Q4lCE5VAPha+o4pLb1dtfFL3gTmSbsB1N++JSlqK3JOo6LphIOy6b0wBjQBbAa6U
3CT1dJaHJoScLLj09vyBlvClGUH2ZKEQTWOiquCCf7JfPofxwPUA6vJ7TYsdkckx
zR3ygbADWmnfS7hFfiqN3JzuYh9eoooGNWSU+Giq6VF41SiL3IqhBGZhWS0zE9c2
2c5lpqqdeHmAYNBqsyzNiDRKp7+zLFSmZ7Z5/0L755L8KYwR6F5beTnmBMHvb4lA
PWH/SWOC8EYR+PEowfrH+TxKZwp0gMn1kcAKjilHk0uCRwG1IzuHAr2jlNxICCk=
=t/Oq
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- support for chained PMU counters in guests
- improved SError handling
- handle Neoverse N1 erratum #1349291
- allow side-channel mitigation status to be migrated
- standardise most AArch64 system register accesses to msr_s/mrs_s
- fix host MPIDR corruption on 32bit
- selftests ckleanups
x86:
- PMU event {white,black}listing
- ability for the guest to disable host-side interrupt polling
- fixes for enlightened VMCS (Hyper-V pv nested virtualization),
- new hypercall to yield to IPI target
- support for passing cstate MSRs through to the guest
- lots of cleanups and optimizations
Generic:
- Some txt->rST conversions for the documentation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (128 commits)
Documentation: virtual: Add toctree hooks
Documentation: kvm: Convert cpuid.txt to .rst
Documentation: virtual: Convert paravirt_ops.txt to .rst
KVM: x86: Unconditionally enable irqs in guest context
KVM: x86: PMU Event Filter
kvm: x86: Fix -Wmissing-prototypes warnings
KVM: Properly check if "page" is valid in kvm_vcpu_unmap
KVM: arm/arm64: Initialise host's MPIDRs by reading the actual register
KVM: LAPIC: Retry tune per-vCPU timer_advance_ns if adaptive tuning goes insane
kvm: LAPIC: write down valid APIC registers
KVM: arm64: Migrate _elx sysreg accessors to msr_s/mrs_s
KVM: doc: Add API documentation on the KVM_REG_ARM_WORKAROUNDS register
KVM: arm/arm64: Add save/restore support for firmware workaround state
arm64: KVM: Propagate full Spectre v2 workaround state to KVM guests
KVM: arm/arm64: Support chained PMU counters
KVM: arm/arm64: Remove pmc->bitmask
KVM: arm/arm64: Re-create event when setting counter value
KVM: arm/arm64: Extract duplicated code to own function
KVM: arm/arm64: Rename kvm_pmu_{enable/disable}_counter functions
KVM: LAPIC: ARBPRI is a reserved register for x2APIC
...
- move the USB special case that bounced DMA through a device
bar into the USB code instead of handling it in the common
DMA code (Laurentiu Tudor and Fredrik Noring)
- don't dip into the global CMA pool for single page allocations
(Nicolin Chen)
- fix a crash when allocating memory for the atomic pool failed
during boot (Florian Fainelli)
- move support for MIPS-style uncached segments to the common
code and use that for MIPS and nios2 (me)
- make support for DMA_ATTR_NON_CONSISTENT and
DMA_ATTR_NO_KERNEL_MAPPING generic (me)
- convert nds32 to the generic remapping allocator (me)
-----BEGIN PGP SIGNATURE-----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=01Fr
-----END PGP SIGNATURE-----
Merge tag 'dma-mapping-5.3' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- move the USB special case that bounced DMA through a device bar into
the USB code instead of handling it in the common DMA code (Laurentiu
Tudor and Fredrik Noring)
- don't dip into the global CMA pool for single page allocations
(Nicolin Chen)
- fix a crash when allocating memory for the atomic pool failed during
boot (Florian Fainelli)
- move support for MIPS-style uncached segments to the common code and
use that for MIPS and nios2 (me)
- make support for DMA_ATTR_NON_CONSISTENT and
DMA_ATTR_NO_KERNEL_MAPPING generic (me)
- convert nds32 to the generic remapping allocator (me)
* tag 'dma-mapping-5.3' of git://git.infradead.org/users/hch/dma-mapping: (29 commits)
dma-mapping: mark dma_alloc_need_uncached as __always_inline
MIPS: only select ARCH_HAS_UNCACHED_SEGMENT for non-coherent platforms
usb: host: Fix excessive alignment restriction for local memory allocations
lib/genalloc.c: Add algorithm, align and zeroed family of DMA allocators
nios2: use the generic uncached segment support in dma-direct
nds32: use the generic remapping allocator for coherent DMA allocations
arc: use the generic remapping allocator for coherent DMA allocations
dma-direct: handle DMA_ATTR_NO_KERNEL_MAPPING in common code
dma-direct: handle DMA_ATTR_NON_CONSISTENT in common code
dma-mapping: add a dma_alloc_need_uncached helper
openrisc: remove the partial DMA_ATTR_NON_CONSISTENT support
arc: remove the partial DMA_ATTR_NON_CONSISTENT support
arm-nommu: remove the partial DMA_ATTR_NON_CONSISTENT support
ARM: dma-mapping: allow larger DMA mask than supported
dma-mapping: truncate dma masks to what dma_addr_t can hold
iommu/dma: Apply dma_{alloc,free}_contiguous functions
dma-remap: Avoid de-referencing NULL atomic_pool
MIPS: use the generic uncached segment support in dma-direct
dma-direct: provide generic support for uncached kernel segments
au1100fb: fix DMA API abuse
...
MIPS allocates kernel PTE pages with
__get_free_pages(GFP_KERNEL | __GFP_ZERO, PTE_ORDER)
and user PTE pages with
pte = alloc_pages(GFP_KERNEL, PTE_ORDER)
and then uses clear_highpage(pte) to zero out the allocated page for the
user page tables.
The PTE_ORDER is hardwired to zero, which makes MIPS implementation almost
identical to the generic one.
Switch MIPS to the generic version that does exactly the same thing for the
kernel page tables and adds __GFP_ACCOUNT for the user PTEs.
The pte_free_kernel() and pte_free() versions on mips are identical to the
generic ones and can be simply dropped.
Link: http://lkml.kernel.org/r/1557296232-15361-9-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Paul Burton <paul.burton@mips.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Guo Ren <ren_guo@c-sky.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Sam Creasey <sammy@sammy.net>
Cc: Vincent Chen <deanbo422@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We only support the generic GUP now, so rename the config option to
be more clear, and always use the mm/Kconfig definition of the
symbol and select it from the arch Kconfigs.
Link: http://lkml.kernel.org/r/20190625143715.1689-11-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Miller <davem@davemloft.net>
Cc: James Hogan <jhogan@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The mips code is mostly equivalent to the generic one, minus various
bugfixes and an arch override for gup_fast_permitted.
Note that this defines ARCH_HAS_PTE_SPECIAL for mips as mips has
pte_special and pte_mkspecial implemented and used in the existing gup
code. They are no-op stubs, though which makes me a little unsure if this
is really right thing to do.
Note that this also adds back a missing cpu_has_dc_aliases check for
__get_user_pages_fast, which the old code was only doing for
get_user_pages_fast. This clearly looks like an oversight, as any
condition that makes get_user_pages_fast unsafe also applies to
__get_user_pages_fast.
[hch@lst.de: MIPS: don't select ARCH_HAS_PTE_SPECIAL]
Link: http://lkml.kernel.org/r/20190701151818.32227-3-hch@lst.de
Link: http://lkml.kernel.org/r/20190625143715.1689-5-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Miller <davem@davemloft.net>
Cc: James Hogan <jhogan@kernel.org>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking updates from David Miller:
"Some highlights from this development cycle:
1) Big refactoring of ipv6 route and neigh handling to support
nexthop objects configurable as units from userspace. From David
Ahern.
2) Convert explored_states in BPF verifier into a hash table,
significantly decreased state held for programs with bpf2bpf
calls, from Alexei Starovoitov.
3) Implement bpf_send_signal() helper, from Yonghong Song.
4) Various classifier enhancements to mvpp2 driver, from Maxime
Chevallier.
5) Add aRFS support to hns3 driver, from Jian Shen.
6) Fix use after free in inet frags by allocating fqdirs dynamically
and reworking how rhashtable dismantle occurs, from Eric Dumazet.
7) Add act_ctinfo packet classifier action, from Kevin
Darbyshire-Bryant.
8) Add TFO key backup infrastructure, from Jason Baron.
9) Remove several old and unused ISDN drivers, from Arnd Bergmann.
10) Add devlink notifications for flash update status to mlxsw driver,
from Jiri Pirko.
11) Lots of kTLS offload infrastructure fixes, from Jakub Kicinski.
12) Add support for mv88e6250 DSA chips, from Rasmus Villemoes.
13) Various enhancements to ipv6 flow label handling, from Eric
Dumazet and Willem de Bruijn.
14) Support TLS offload in nfp driver, from Jakub Kicinski, Dirk van
der Merwe, and others.
15) Various improvements to axienet driver including converting it to
phylink, from Robert Hancock.
16) Add PTP support to sja1105 DSA driver, from Vladimir Oltean.
17) Add mqprio qdisc offload support to dpaa2-eth, from Ioana
Radulescu.
18) Add devlink health reporting to mlx5, from Moshe Shemesh.
19) Convert stmmac over to phylink, from Jose Abreu.
20) Add PTP PHC (Physical Hardware Clock) support to mlxsw, from
Shalom Toledo.
21) Add nftables SYNPROXY support, from Fernando Fernandez Mancera.
22) Convert tcp_fastopen over to use SipHash, from Ard Biesheuvel.
23) Track spill/fill of constants in BPF verifier, from Alexei
Starovoitov.
24) Support bounded loops in BPF, from Alexei Starovoitov.
25) Various page_pool API fixes and improvements, from Jesper Dangaard
Brouer.
26) Just like ipv4, support ref-countless ipv6 route handling. From
Wei Wang.
27) Support VLAN offloading in aquantia driver, from Igor Russkikh.
28) Add AF_XDP zero-copy support to mlx5, from Maxim Mikityanskiy.
29) Add flower GRE encap/decap support to nfp driver, from Pieter
Jansen van Vuuren.
30) Protect against stack overflow when using act_mirred, from John
Hurley.
31) Allow devmap map lookups from eBPF, from Toke Høiland-Jørgensen.
32) Use page_pool API in netsec driver, Ilias Apalodimas.
33) Add Google gve network driver, from Catherine Sullivan.
34) More indirect call avoidance, from Paolo Abeni.
35) Add kTLS TX HW offload support to mlx5, from Tariq Toukan.
36) Add XDP_REDIRECT support to bnxt_en, from Andy Gospodarek.
37) Add MPLS manipulation actions to TC, from John Hurley.
38) Add sending a packet to connection tracking from TC actions, and
then allow flower classifier matching on conntrack state. From
Paul Blakey.
39) Netfilter hw offload support, from Pablo Neira Ayuso"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2080 commits)
net/mlx5e: Return in default case statement in tx_post_resync_params
mlx5: Return -EINVAL when WARN_ON_ONCE triggers in mlx5e_tls_resync().
net: dsa: add support for BRIDGE_MROUTER attribute
pkt_sched: Include const.h
net: netsec: remove static declaration for netsec_set_tx_de()
net: netsec: remove superfluous if statement
netfilter: nf_tables: add hardware offload support
net: flow_offload: rename tc_cls_flower_offload to flow_cls_offload
net: flow_offload: add flow_block_cb_is_busy() and use it
net: sched: remove tcf block API
drivers: net: use flow block API
net: sched: use flow block API
net: flow_offload: add flow_block_cb_{priv, incref, decref}()
net: flow_offload: add list handling functions
net: flow_offload: add flow_block_cb_alloc() and flow_block_cb_free()
net: flow_offload: rename TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_*
net: flow_offload: rename TC_BLOCK_{UN}BIND to FLOW_BLOCK_{UN}BIND
net: flow_offload: add flow_block_cb_setup_simple()
net: hisilicon: Add an tx_desc to adapt HI13X1_GMAC
net: hisilicon: Add an rx_desc to adapt HI13X1_GMAC
...
- Add support for chained PMU counters in guests
- Improve SError handling
- Handle Neoverse N1 erratum #1349291
- Allow side-channel mitigation status to be migrated
- Standardise most AArch64 system register accesses to msr_s/mrs_s
- Fix host MPIDR corruption on 32bit
-----BEGIN PGP SIGNATURE-----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=yfCs
-----END PGP SIGNATURE-----
Merge tag 'kvm-arm-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm updates for 5.3
- Add support for chained PMU counters in guests
- Improve SError handling
- Handle Neoverse N1 erratum #1349291
- Allow side-channel mitigation status to be migrated
- Standardise most AArch64 system register accesses to msr_s/mrs_s
- Fix host MPIDR corruption on 32bit
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCXSMhUgAKCRCRxhvAZXjc
okkiAQC3Hlg/O2JoIb4PqgEvBkpHSdVxyuWagn0ksjACW9ANKQEAl5OadMhvOq16
UHGhKlpE/M8HflknIffoEGlIAWHrdwU=
=7kP5
-----END PGP SIGNATURE-----
Merge tag 'pidfd-updates-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull pidfd updates from Christian Brauner:
"This adds two main features.
- First, it adds polling support for pidfds. This allows process
managers to know when a (non-parent) process dies in a race-free
way.
The notification mechanism used follows the same logic that is
currently used when the parent of a task is notified of a child's
death. With this patchset it is possible to put pidfds in an
{e}poll loop and get reliable notifications for process (i.e.
thread-group) exit.
- The second feature compliments the first one by making it possible
to retrieve pollable pidfds for processes that were not created
using CLONE_PIDFD.
A lot of processes get created with traditional PID-based calls
such as fork() or clone() (without CLONE_PIDFD). For these
processes a caller can currently not create a pollable pidfd. This
is a problem for Android's low memory killer (LMK) and service
managers such as systemd.
Both patchsets are accompanied by selftests.
It's perhaps worth noting that the work done so far and the work done
in this branch for pidfd_open() and polling support do already see
some adoption:
- Android is in the process of backporting this work to all their LTS
kernels [1]
- Service managers make use of pidfd_send_signal but will need to
wait until we enable waiting on pidfds for full adoption.
- And projects I maintain make use of both pidfd_send_signal and
CLONE_PIDFD [2] and will use polling support and pidfd_open() too"
[1] https://android-review.googlesource.com/q/topic:%22pidfd+polling+support+4.9+backport%22https://android-review.googlesource.com/q/topic:%22pidfd+polling+support+4.14+backport%22https://android-review.googlesource.com/q/topic:%22pidfd+polling+support+4.19+backport%22
[2] aab6e3eb73/src/lxc/start.c (L1753)
* tag 'pidfd-updates-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
tests: add pidfd_open() tests
arch: wire-up pidfd_open()
pid: add pidfd_open()
pidfd: add polling selftests
pidfd: add polling support
Pull force_sig() argument change from Eric Biederman:
"A source of error over the years has been that force_sig has taken a
task parameter when it is only safe to use force_sig with the current
task.
The force_sig function is built for delivering synchronous signals
such as SIGSEGV where the userspace application caused a synchronous
fault (such as a page fault) and the kernel responded with a signal.
Because the name force_sig does not make this clear, and because the
force_sig takes a task parameter the function force_sig has been
abused for sending other kinds of signals over the years. Slowly those
have been fixed when the oopses have been tracked down.
This set of changes fixes the remaining abusers of force_sig and
carefully rips out the task parameter from force_sig and friends
making this kind of error almost impossible in the future"
* 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (27 commits)
signal/x86: Move tsk inside of CONFIG_MEMORY_FAILURE in do_sigbus
signal: Remove the signal number and task parameters from force_sig_info
signal: Factor force_sig_info_to_task out of force_sig_info
signal: Generate the siginfo in force_sig
signal: Move the computation of force into send_signal and correct it.
signal: Properly set TRACE_SIGNAL_LOSE_INFO in __send_signal
signal: Remove the task parameter from force_sig_fault
signal: Use force_sig_fault_to_task for the two calls that don't deliver to current
signal: Explicitly call force_sig_fault on current
signal/unicore32: Remove tsk parameter from __do_user_fault
signal/arm: Remove tsk parameter from __do_user_fault
signal/arm: Remove tsk parameter from ptrace_break
signal/nds32: Remove tsk parameter from send_sigtrap
signal/riscv: Remove tsk parameter from do_trap
signal/sh: Remove tsk parameter from force_sig_info_fault
signal/um: Remove task parameter from send_sigtrap
signal/x86: Remove task parameter from send_sigtrap
signal: Remove task parameter from force_sig_mceerr
signal: Remove task parameter from force_sig
signal: Remove task parameter from force_sigsegv
...
Pull scheduler updates from Ingo Molnar:
- Remove the unused per rq load array and all its infrastructure, by
Dietmar Eggemann.
- Add utilization clamping support by Patrick Bellasi. This is a
refinement of the energy aware scheduling framework with support for
boosting of interactive and capping of background workloads: to make
sure critical GUI threads get maximum frequency ASAP, and to make
sure background processing doesn't unnecessarily move to cpufreq
governor to higher frequencies and less energy efficient CPU modes.
- Add the bare minimum of tracepoints required for LISA EAS regression
testing, by Qais Yousef - which allows automated testing of various
power management features, including energy aware scheduling.
- Restructure the former tsk_nr_cpus_allowed() facility that the -rt
kernel used to modify the scheduler's CPU affinity logic such as
migrate_disable() - introduce the task->cpus_ptr value instead of
taking the address of &task->cpus_allowed directly - by Sebastian
Andrzej Siewior.
- Misc optimizations, fixes, cleanups and small enhancements - see the
Git log for details.
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
sched/uclamp: Add uclamp support to energy_compute()
sched/uclamp: Add uclamp_util_with()
sched/cpufreq, sched/uclamp: Add clamps for FAIR and RT tasks
sched/uclamp: Set default clamps for RT tasks
sched/uclamp: Reset uclamp values on RESET_ON_FORK
sched/uclamp: Extend sched_setattr() to support utilization clamping
sched/core: Allow sched_setattr() to use the current policy
sched/uclamp: Add system default clamps
sched/uclamp: Enforce last task's UCLAMP_MAX
sched/uclamp: Add bucket local max tracking
sched/uclamp: Add CPU's clamp buckets refcounting
sched/fair: Rename weighted_cpuload() to cpu_runnable_load()
sched/debug: Export the newly added tracepoints
sched/debug: Add sched_overutilized tracepoint
sched/debug: Add new tracepoint to track PELT at se level
sched/debug: Add new tracepoints to track PELT at rq level
sched/debug: Add a new sched_trace_*() helper functions
sched/autogroup: Make autogroup_path() always available
sched/wait: Deduplicate code with do-while
sched/topology: Remove unused 'sd' parameter from arch_scale_cpu_capacity()
...
Pull locking updates from Ingo Molnar:
"The main changes in this cycle are:
- rwsem scalability improvements, phase #2, by Waiman Long, which are
rather impressive:
"On a 2-socket 40-core 80-thread Skylake system with 40 reader
and writer locking threads, the min/mean/max locking operations
done in a 5-second testing window before the patchset were:
40 readers, Iterations Min/Mean/Max = 1,807/1,808/1,810
40 writers, Iterations Min/Mean/Max = 1,807/50,344/151,255
After the patchset, they became:
40 readers, Iterations Min/Mean/Max = 30,057/31,359/32,741
40 writers, Iterations Min/Mean/Max = 94,466/95,845/97,098"
There's a lot of changes to the locking implementation that makes
it similar to qrwlock, including owner handoff for more fair
locking.
Another microbenchmark shows how across the spectrum the
improvements are:
"With a locking microbenchmark running on 5.1 based kernel, the
total locking rates (in kops/s) on a 2-socket Skylake system
with equal numbers of readers and writers (mixed) before and
after this patchset were:
# of Threads Before Patch After Patch
------------ ------------ -----------
2 2,618 4,193
4 1,202 3,726
8 802 3,622
16 729 3,359
32 319 2,826
64 102 2,744"
The changes are extensive and the patch-set has been through
several iterations addressing various locking workloads. There
might be more regressions, but unless they are pathological I
believe we want to use this new implementation as the baseline
going forward.
- jump-label optimizations by Daniel Bristot de Oliveira: the primary
motivation was to remove IPI disturbance of isolated RT-workload
CPUs, which resulted in the implementation of batched jump-label
updates. Beyond the improvement of the real-time characteristics
kernel, in one test this patchset improved static key update
overhead from 57 msecs to just 1.4 msecs - which is a nice speedup
as well.
- atomic64_t cross-arch type cleanups by Mark Rutland: over the last
~10 years of atomic64_t existence the various types used by the
APIs only had to be self-consistent within each architecture -
which means they became wildly inconsistent across architectures.
Mark puts and end to this by reworking all the atomic64
implementations to use 's64' as the base type for atomic64_t, and
to ensure that this type is consistently used for parameters and
return values in the API, avoiding further problems in this area.
- A large set of small improvements to lockdep by Yuyang Du: type
cleanups, output cleanups, function return type and othr cleanups
all around the place.
- A set of percpu ops cleanups and fixes by Peter Zijlstra.
- Misc other changes - please see the Git log for more details"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (82 commits)
locking/lockdep: increase size of counters for lockdep statistics
locking/atomics: Use sed(1) instead of non-standard head(1) option
locking/lockdep: Move mark_lock() inside CONFIG_TRACE_IRQFLAGS && CONFIG_PROVE_LOCKING
x86/jump_label: Make tp_vec_nr static
x86/percpu: Optimize raw_cpu_xchg()
x86/percpu, sched/fair: Avoid local_clock()
x86/percpu, x86/irq: Relax {set,get}_irq_regs()
x86/percpu: Relax smp_processor_id()
x86/percpu: Differentiate this_cpu_{}() and __this_cpu_{}()
locking/rwsem: Guard against making count negative
locking/rwsem: Adaptive disabling of reader optimistic spinning
locking/rwsem: Enable time-based spinning on reader-owned rwsem
locking/rwsem: Make rwsem->owner an atomic_long_t
locking/rwsem: Enable readers spinning on writer
locking/rwsem: Clarify usage of owner's nonspinaable bit
locking/rwsem: Wake up almost all readers in wait queue
locking/rwsem: More optimal RT task handling of null owner
locking/rwsem: Always release wait_lock before waking up tasks
locking/rwsem: Implement lock handoff to prevent lock starvation
locking/rwsem: Make rwsem_spin_on_owner() return owner state
...
- Fix a silly typo in virt_addr_valid which led to completely bogus
behavior (that happened to stop tripping up hardened usercopy despite
being broken).
- Fix UART parity setup on AR933x systems.
- A build fix for non-Linux build machines.
- Have the 'all' make target build DTBs, primarily to fit in with the
behavior of scripts/package/builddeb.
- Handle an execution hazard in TLB exceptions that use KScratch
registers, which could inadvertently clobber the $1 register on some
generally higher-end out-of-order CPUs.
- A MAINTAINERS update to fix the path to the NAND driver for Ingenic
systems.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXSDJfhUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN35ygEA30KckazfjbtmW0EqD+C19sgtbSS3
eCAiweHHwLJoyUUBAJ/HzlZ8ap2X9ilZuFdzKEf1igj5WsLIyrkl6kkauUEA
=DRYO
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A few more MIPS fixes:
- Fix a silly typo in virt_addr_valid which led to completely bogus
behavior (that happened to stop tripping up hardened usercopy
despite being broken).
- Fix UART parity setup on AR933x systems.
- A build fix for non-Linux build machines.
- Have the 'all' make target build DTBs, primarily to fit in with the
behavior of scripts/package/builddeb.
- Handle an execution hazard in TLB exceptions that use KScratch
registers, which could inadvertently clobber the $1 register on
some generally higher-end out-of-order CPUs.
- A MAINTAINERS update to fix the path to the NAND driver for Ingenic
systems"
* tag 'mips_fixes_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MAINTAINERS: Correct path to moved files
MIPS: Add missing EHB in mtc0 -> mfc0 sequence.
MIPS: have "plain" make calls build dtbs for selected platforms
MIPS: fix build on non-linux hosts
MIPS: ath79: fix ar933x uart parity mode
MIPS: Fix bounds check virt_addr_valid
While mips might architecturally have the uncached segment all the time,
the infrastructure to use it is only need on platforms where DMA is
at least partially incoherent. Only select it for those configuration
to fix a build failure as the arch_dma_prep_coherent symbol is also only
provided for non-coherent platforms.
Fixes: 2e96e04d25 ("MIPS: use the generic uncached segment support in dma-direct")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Generic kprobe_page_fault() calls into kprobe_fault_handler() which must be
available with and without CONFIG_KPROBES. There is one stub implementation
for !CONFIG_KPROBES. For CONFIG_KPROBES all subscribing archs must provide
a kprobe_fault_handler() definition. Currently mips has an implementation
which is defined as 'static inline'. Make it available for generic kprobes
to comply with the above new requirement.
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-mm@kvack.org
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 773734b44557 ("mm, kprobes: generalize and rename notify_page_fault() as kprobe_page_fault()")
Cc: linux-kernel@vger.kernel.org
No one is using this header anymore.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull irq fixes from Ingo Molnar:
"Diverse irqchip driver fixes"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3-its: Fix command queue pointer comparison bug
irqchip/mips-gic: Use the correct local interrupt map registers
irqchip/ti-sci-inta: Fix kernel crash if irq_create_fwspec_mapping fail
irqchip/irq-csky-mpintc: Support auto irq deliver to all cpus
Remove the unused <asm/mach-jz4740/clock.h> include.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Instead of forcing the jz4740 clocks to suspend here, we let the CGU
driver handle it.
We also let the CGU driver set the "sleep mode" bit.
This has the added benefit that now it is possible to build a kernel on
SoCs newer than the JZ4740 with CONFIG_PM.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This patch adds the watchdog controller description to the MT7628A dtsi
file.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Harvey Hunt <harveyhuntnexus@gmail.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
This patch adds the SPI controller description to the MT7628A dtsi file.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Harvey Hunt <harveyhuntnexus@gmail.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
This patch adds the GPIO controller description to the MT7628A dtsi file.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Harvey Hunt <harveyhuntnexus@gmail.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Now that pinmux is available, let's use it for the UART DT nodes.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Harvey Hunt <harveyhuntnexus@gmail.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
This patch adds the pinmux DT node using the generic "pinctrl-single"
pinmux driver. For this the system-controller register area needs to be
changed to not overlap with the pinmux registers.
This patch is based on work done by John Crispin.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Harvey Hunt <harveyhuntnexus@gmail.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
As done in commit b24413180f ("License cleanup: add SPDX GPL-2.0
license identifier to files with no license"), this patch adds the SPDX
license identifier to mt7628a.dtsi, which is currently still missing
this identifier.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Harvey Hunt <harveyhuntnexus@gmail.com>
Cc: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Some lantiq devices have two ICU controllers. The IRQ signal is routed
to both of them and user can chose which ICU will resend the IRQ to their
respective VPE. The patch adds the support for the second ICU.
The patch changes a register definition of the driver. Instead of an
individual IM, the whole ICU is defined. This will only affects openwrt
patched kernel (vanilla doesn't have additional .dts files).
Also spinlocks has been added, both cores can RMW different bitfields
in the same register. Added affinity set function. The new VPE cpumask
will take into the action at the irq enable.
The functionality was tested on 4.14 openwrt kernel and TP-W9980B modem.
Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: hauke@hauke-m.de
Cc: john@phrozen.org
Cc: linux-mips@vger.kernel.org
Cc: openwrt-devel@lists.openwrt.org
Cc: pakahmar@hotmail.com
The macros LTQ_ICU_IM1_ISR and LTQ_ICU_OFFSET seems to be unused, remove
them. Allong with that, remove _IM0 substring from the macro names. The
IM (interrupt module) is already defined in IOMEM access and IM0 would be
misleading.
Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: hauke@hauke-m.de
Cc: john@phrozen.org
Cc: linux-mips@vger.kernel.org
Cc: openwrt-devel@lists.openwrt.org
Cc: pakahmar@hotmail.com
A structure irq_data, irq_desc_get_irq() and irq_linear_revmap() use
a different type than defined in the lantiq ICU driver, which is using
signed integers. The substracted result should never be negative nor is
tested for that situation. Change it to unsigned.
Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: hauke@hauke-m.de
Cc: john@phrozen.org
Cc: linux-mips@vger.kernel.org
Cc: openwrt-devel@lists.openwrt.org
Cc: pakahmar@hotmail.com
There are some generic drivers in the kernel, which make use of the
q-accessors or their derivatives. While at current asm/io.h the accessors
are defined, their implementation is only applicable either for 64bit
systems, or for systems with cpu_has_64bits flag set. Obviously there
are MIPS systems which are neither of these, but still need to have
those drivers supported. In this case the solution is to define some
generic versions of the q-accessors, but with a limitation to be
non-atomic. Such accessors are defined in the
io-64-nonatomic-{hi-lo,lo-hi}.h file. The drivers which utilize the
q-suffixed IO-methods are supposed to include the header file, so
in case if these accessors aren't defined for the platform, the generic
non-atomic versions are utilized. Currently the MIPS-specific asm/io.h
file provides the q-accessors for any MIPS system even for ones, which
in fact don't support them and raise BUG() in case if any of them is
called. Due to this the generic versions of the accessors are never
used while an attempt to call the IO-methods causes the kernel BUG().
In order to fix this we need to define the q-accessors only for
the MIPS systems, which actually support them, and don't define them
otherwise, so to let the corresponding drivers to use the non-atomic
q-suffixed accessors.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Cc: Vadim V. Vlasov <vadim.vlasov@t-platforms.ru>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Serge Semin <Sergey.Semin@t-platforms.ru>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Add a missing EHB (Execution Hazard Barrier) in mtc0 -> mfc0 sequence.
Without this execution hazard barrier it's possible for the value read
back from the KScratch register to be the value from before the mtc0.
Reproducible on P5600 & P6600.
The hazard is documented in the MIPS Architecture Reference Manual Vol.
III: MIPS32/microMIPS32 Privileged Resource Architecture (MD00088), rev
6.03 table 8.1 which includes:
Producer | Consumer | Hazard
----------|----------|----------------------------
mtc0 | mfc0 | any coprocessor 0 register
Signed-off-by: Dmitry Korotin <dkorotin@wavecomp.com>
[paul.burton@mips.com:
- Commit message tweaks.
- Add Fixes tags.
- Mark for stable back to v3.15 where P5600 support was introduced.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 3d8bfdd030 ("MIPS: Use C0_KScratch (if present) to hold PGD pointer.")
Fixes: 829dcc0a95 ("MIPS: Add MIPS P5600 probe support")
Cc: linux-mips@vger.kernel.org
Cc: stable@vger.kernel.org # v3.15+
scripts/package/builddeb calls "make dtbs_install" after executing
a plain make (i.e. no build targets specified). It will fail if dtbs
were not built beforehand. Match the arm64 architecture where DTBs get
built by the "all" target.
Signed-off-by: Cedric Hombourger <Cedric_Hombourger@mentor.com>
[paul.burton@mips.com: s/builddep/builddeb]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: stable@vger.kernel.org # v4.1+
Alexei Starovoitov says:
====================
pull-request: bpf-next 2019-06-19
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) new SO_REUSEPORT_DETACH_BPF setsocktopt, from Martin.
2) BTF based map definition, from Andrii.
3) support bpf_map_lookup_elem for xskmap, from Jonathan.
4) bounded loops and scalar precision logic in the verifier, from Alexei.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
calc_vmlinuz_load_addr.c requires SZ_64K to be defined for alignment
purposes. It included "../../../../include/linux/sizes.h" to define
that size, however "sizes.h" tries to include <linux/const.h> which
assumes linux system headers. These may not exist eg. the following
error was encountered when building Linux for OpenWrt under macOS:
In file included from arch/mips/boot/compressed/calc_vmlinuz_load_addr.c:16:
arch/mips/boot/compressed/../../../../include/linux/sizes.h:11:10: fatal error: 'linux/const.h' file not found
^~~~~~~~~~
Change makefile to force building on local linux headers instead of
system headers. Also change eye-watering relative reference in include
file spec.
Thanks to Jo-Philip Wich & Petr Štetiar for assistance in tracking this
down & fixing.
Suggested-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
While trying to get the uart with parity working I found setting even
parity enabled odd parity insted. Fix the register settings to match
the datasheet of AR9331.
A similar patch was created by 8devices, but not sent upstream.
77c5586ade
Signed-off-by: Stefan Hellermann <stefan@the2masters.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Based on 1 normalized pattern(s):
this file is free software you can redistribute it and or modify it
under the terms of version 2 of the gnu general public license as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
software foundation inc 51 franklin st fifth floor boston ma 02110
1301 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 8 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.443595178@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can distribute it and or modify it
under the terms of the gnu general public license as published by
the free software foundation version 2 of the license
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 8 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.231815901@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
this source code is licensed under the gnu general public license
version 2 see the file copying for more details
this source code is licensed under general public license version 2
see
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 52 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.449021192@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The bounds check used the uninitialized variable vaddr, it should use
the given parameter kaddr instead. When using the uninitialized value
the compiler assumed it to be 0 and optimized this function to just
return 0 in all cases.
This should make the function check the range of the given address and
only do the page map check in case it is in the expected range of
virtual addresses.
Fixes: 074a1e1167 ("MIPS: Bounds check virt_addr_valid")
Cc: stable@vger.kernel.org # v4.12+
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: f4bug@amsat.org
Cc: linux-mips@vger.kernel.org
Cc: ysu@wavecomp.com
Cc: jcristau@debian.org
This config option makes only couple of lines optional.
Two small helpers and an int in couple of cls structs.
Remove the config option and always compile this in.
This saves the user from unexpected surprises when he adds
a filter with ingress device match which is silently ignored
in case the config option is not set.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is SO_ATTACH_REUSEPORT_[CE]BPF but there is no DETACH.
This patch adds SO_DETACH_REUSEPORT_BPF sockopt. The same
sockopt can be used to undo both SO_ATTACH_REUSEPORT_[CE]BPF.
reseport_detach_prog() is added and it is mostly a mirror
of the existing reuseport_attach_prog(). The differences are,
it does not call reuseport_alloc() and returns -ENOENT when
there is no old prog.
Cc: Craig Gallek <kraig@google.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Remove the CONFIG_UEVENT_HELPER_PATH because:
1. It is disabled since commit 1be01d4a57 ("driver: base: Disable
CONFIG_UEVENT_HELPER by default") as its dependency (UEVENT_HELPER) was
made default to 'n',
2. It is not recommended (help message: "This should not be used today
[...] creates a high system load") and was kept only for ancient
userland,
3. Certain userland specifically requests it to be disabled (systemd
README: "Legacy hotplug slows down the system and confuses udev").
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
The CONFIG_BACKLIGHT_LCD_SUPPORT was removed in commit 8c5dc8d9f1
("video: backlight: Remove useless BACKLIGHT_LCD_SUPPORT kernel
symbol"). Options protected by CONFIG_BACKLIGHT_LCD_SUPPORT are now
available directly.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: James Hartley <james.hartley@sondrel.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The original license text had a typo ("publishhed") which would be
likely to confuse automated licensing auditing tools. Let's just switch
to SPDX instead of fixing the wording.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The pin mappings introduced in commit 636f8ba67f
("MIPS: JZ4740: Qi LB60: Add pinctrl configuration for several drivers")
are completely wrong. The pinctrl driver name is incorrect, and the
function and group fields are swapped.
Fixes: 636f8ba67f ("MIPS: JZ4740: Qi LB60: Add pinctrl configuration for several drivers")
Cc: <stable@vger.kernel.org>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
- Declare ginvt() __always_inline due to its use of an argument as an
inline asm immediate.
- A VDSO build fix following Kbuild changes made this cycle.
- A fix for boot failures on txx9 systems following memory
initialization changes made this cycle.
- Bounds check virt_addr_valid() to prevent it spuriously indicating
that bogus addresses are valid, in turn fixing hardened usercopy
failures that have been present since v4.12.
- Build uImage.gz for pistachio systems by default, since this is the
image we need in order to actually boot on a board.
- Remove an unused variable in our uprobes code.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXPtXKRUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN2wxQD+NM+gBaLkqHO2VKGPeBgkenwG2ehK
rY4eeO+7/tMC7AsA/iFaSD3E8VZesao0tkYCC2lxl3o0avkzExwwkzbHAjsK
=3ysz
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
- Declare ginvt() __always_inline due to its use of an argument as an
inline asm immediate.
- A VDSO build fix following Kbuild changes made this cycle.
- A fix for boot failures on txx9 systems following memory
initialization changes made this cycle.
- Bounds check virt_addr_valid() to prevent it spuriously indicating
that bogus addresses are valid, in turn fixing hardened usercopy
failures that have been present since v4.12.
- Build uImage.gz for pistachio systems by default, since this is the
image we need in order to actually boot on a board.
- Remove an unused variable in our uprobes code.
* tag 'mips_fixes_5.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: uprobes: remove set but not used variable 'epc'
MIPS: pistachio: Build uImage.gz by default
MIPS: Make virt_addr_valid() return bool
MIPS: Bounds check virt_addr_valid
MIPS: TXx9: Fix boot crash in free_initmem()
MIPS: remove a space after -I to cope with header search paths for VDSO
MIPS: mark ginvt() as __always_inline
Some ISDN files that got removed in net-next had some changes
done in mainline, take the removals.
Signed-off-by: David S. Miller <davem@davemloft.net>
Based on 1 normalized pattern(s):
this program is free software you can distribute it and or modify it
under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope it will be useful but without any warranty
without even the implied warranty of merchantability or fitness for
a particular purpose see the gnu general public license for more
details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 24 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.872212424@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation version 2 of the license
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 315 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 101 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can distribute it and or modify it
under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope it will be useful but without any warranty
without even the implied warranty of merchantability or fitness for
a particular purpose see the gnu general public license for more
details you should have received a copy of the gnu general public
license along with this program if not write to the free software
foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 33 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081038.563233189@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can distribute it and or modify it
under the terms of the gnu general public license version 2 as
published by the free software foundation
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 2 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531081035.310807637@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
software foundation inc 59 temple place suite 330 boston ma 02111
1307 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 136 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.384967451@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
publishhed by the free software foundation
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 48 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.292339952@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
it and or modify it under the terms of the gnu general public
license version 2 as published by the free software foundation this
program is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program
this program is free software you can redistribute it and or modify
it under the terms and conditions of the gnu general public license
version 2 as published by the free software foundation this program
is distributed in the hope it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 11 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000434.249870634@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
licensed under the gplv2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 6 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000433.961827334@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed as is without any warranty of any kind whether express
or implied without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 2 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141332.617181045@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The MIPS GIC contains a block of registers used to map local interrupts
to a particular CPU interrupt pin. Since these registers are found at a
consecutive range of addresses we access them using an index, via the
(read|write)_gic_v[lo]_map accessor functions. We currently use values
from enum mips_gic_local_interrupt as those indices.
Unfortunately whilst enum mips_gic_local_interrupt provides the correct
offsets for bits in the pending & mask registers, the ordering of the
map registers is subtly different... Compared with the ordering of
pending & mask bits, the map registers move the FDC from the end of the
list to index 3 after the timer interrupt. As a result the performance
counter & software interrupts are therefore at indices 4-6 rather than
indices 3-5.
Notably this causes problems with performance counter interrupts being
incorrectly mapped on some systems, and presumably will also cause
problems for FDC interrupts.
Introduce a function to map from enum mips_gic_local_interrupt to the
index of the corresponding map register, and use it to ensure we access
the map registers for the correct interrupts.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: a0dc5cb5e3 ("irqchip: mips-gic: Simplify gic_local_irq_domain_map()")
Fixes: da61fcf9d6 ("irqchip: mips-gic: Use irq_cpu_online to (un)mask all-VP(E) IRQs")
Reported-and-tested-by: Archer Yan <ayan@wavecomp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Add a wrapper to invoke kvm_arch_check_processor_compat() so that the
boilerplate ugliness of checking virtualization support on all CPUs is
hidden from the arch specific code. x86's implementation in particular
is quite heinous, as it unnecessarily propagates the out-param pattern
into kvm_x86_ops.
While the x86 specific issue could be resolved solely by changing
kvm_x86_ops, make the change for all architectures as returning a value
directly is prettier and technically more robust, e.g. s390 doesn't set
the out param, which could lead to subtle breakage in the (highly
unlikely) scenario where the out-param was not pre-initialized by the
caller.
Opportunistically annotate svm_check_processor_compat() with __init.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Stop providing the arch alloc/free hooks and just expose the segment
offset instead.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com>
This export is not used in modular code, which is a good thing as
everyone should use the proper DMA API instead.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com>
In commit:
4b53a3412d ("sched/core: Remove the tsk_nr_cpus_allowed() wrapper")
the tsk_nr_cpus_allowed() wrapper was removed. There was not
much difference in !RT but in RT we used this to implement
migrate_disable(). Within a migrate_disable() section the CPU mask is
restricted to single CPU while the "normal" CPU mask remains untouched.
As an alternative implementation Ingo suggested to use:
struct task_struct {
const cpumask_t *cpus_ptr;
cpumask_t cpus_mask;
};
with
t->cpus_ptr = &t->cpus_mask;
In -RT we then can switch the cpus_ptr to:
t->cpus_ptr = &cpumask_of(task_cpu(p));
in a migration disabled region. The rules are simple:
- Code that 'uses' ->cpus_allowed would use the pointer.
- Code that 'modifies' ->cpus_allowed would use the direct mask.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20190423142636.14347-1-bigeasy@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Add ACL support using the TCAM. Using ACL it is possible to create rules
in hardware to filter/redirect frames.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJc85ibAAoJEL/70l94x66D72gH/iaXjRF9uqGSnd1/JLHIawfb
oH0VQS24tBzRlFREBTA68IxThgjTmSS+yHcAXSO7JmxztjGq3ZWiNaidQIvC1reu
t4MJMvf7ZZa7Yq0OAy2jwVAkZMKk5P8hBjjI5N7pEBb4ApJHzsCHV+KEIe5loc+q
f5LYLR53keImJ40wxh/qFftNNlYJUMv6tWa8y0mrlBrKABOvdRYFswhqcnEPibi9
cPoHDS6Ep/34eAVQzqHzfDbjezpa342SSw6s66Vpb/qYJyxoUh1Mw+9YCmAWanS8
vuvXz4qjCFvLRrmc9ctASUTEVydqx8IdcKQGiteWgpSrl4kgy6nLMZDY5sbq8UM=
=Bgfn
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini:
"Fixes for PPC and s390"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: PPC: Book3S HV: Restore SPRG3 in kvmhv_p9_guest_entry()
KVM: PPC: Book3S HV: Fix lockdep warning when entering guest on POWER9
KVM: PPC: Book3S HV: XIVE: Fix page offset when clearing ESB pages
KVM: PPC: Book3S HV: XIVE: Take the srcu read lock when accessing memslots
KVM: PPC: Book3S HV: XIVE: Do not clear IRQ data of passthrough interrupts
KVM: PPC: Book3S HV: XIVE: Introduce a new mutex for the XIVE device
KVM: PPC: Book3S HV: XIVE: Fix the enforced limit on the vCPU identifier
KVM: PPC: Book3S HV: XIVE: Do not test the EQ flag validity when resetting
KVM: PPC: Book3S HV: XIVE: Clear file mapping when device is released
KVM: PPC: Book3S HV: Don't take kvm->lock around kvm_for_each_vcpu
KVM: PPC: Book3S: Use new mutex to synchronize access to rtas token list
KVM: PPC: Book3S HV: Use new mutex to synchronize MMU setup
KVM: PPC: Book3S HV: Avoid touching arch.mmu_ready in XIVE release functions
KVM: s390: Do not report unusabled IDs via KVM_CAP_MAX_VCPU_ID
kvm: fix compile on s390 part 2
The phylink conflict was between a bug fix by Russell King
to make sure we have a consistent PHY interface mode, and
a change in net-next to pull some code in phylink_resolve()
into the helper functions phylink_mac_link_{up,down}()
On the dp83867 side it's mostly overlapping changes, with
the 'net' side removing a condition that was supposed to
trigger for RGMII but because of how it was coded never
actually could trigger.
Signed-off-by: David S. Miller <davem@davemloft.net>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0
Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this code is released under the gpl version 2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.985972314@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
released under gpl v2
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 15 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528171438.895196075@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can distribute it and or modify it
under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope it will be useful but without any warranty
without even the implied warranty of merchantability or fitness for
a particular purpose see the gnu general public license for more
details you should have received a copy of the gnu general public
license along with this program if not write to the free software
foundation inc 59 temple place suite 330 boston ma 02111 1307 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 32 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170026.531157061@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation version 2 of the license this program
is distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
software foundation inc 59 temple place suite 330 boston ma 02111
1307 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 83 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070034.021731668@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 3 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version [author] [kishon] [vijay] [abraham]
[i] [kishon]@[ti] [com] this program is distributed in the hope that
it will be useful but without any warranty without even the implied
warranty of merchantability or fitness for a particular purpose see
the gnu general public license for more details
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version [author] [graeme] [gregory]
[gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i]
[kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema]
[hk] [hemahk]@[ti] [com] this program is distributed in the hope
that it will be useful but without any warranty without even the
implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 1105 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details you
should have received a copy of the gnu general public license along
with this program if not write to the free software foundation inc
59 temple place suite 330 boston ma 02111 1307 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 1334 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 3029 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version you should have received a copy of the
gnu general public license along with this program if not write to
the free software foundation inc 675 mass ave cambridge ma 02139 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 35 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.655028468@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 8bd9cb51da ("locking/atomics, asm-generic: Move some macros
from <linux/bitops.h> to a new <linux/bits.h> file") moved BIT_ULL()
into <linux/bits.h>. It only includes <asm/bitsperlong.h>, so there is
no longer "include file recursion hell".
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: James Hogan <jhogan@kernel.org>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: linux-kernel@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Fixes gcc '-Wunused-but-set-variable' warning:
arch/mips/kernel/uprobes.c: In function 'arch_uprobe_pre_xol':
arch/mips/kernel/uprobes.c:115:17: warning: variable 'epc' set but not used [-Wunused-but-set-variable]
It's never used since introduction in
commit 40e084a506 ("MIPS: Add uprobes support.")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: <ralf@linux-mips.org>
Cc: <jhogan@kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Cc: <linux-mips@vger.kernel.org>
The pistachio platform uses the U-Boot bootloader & generally boots a
kernel in the uImage format. As such it's useful to build one when
building the kernel, but to do so currently requires the user to
manually specify a uImage target on the make command line.
Make uImage.gz the pistachio platform's default build target, so that
the default is to build a kernel image that we can actually boot on a
board such as the MIPS Creator Ci40.
Marked for stable backport as far as v4.1 where pistachio support was
introduced. This is primarily useful for CI systems such as kernelci.org
which will benefit from us building a suitable image which can then be
booted as part of automated testing, extending our test coverage to the
affected stable branches.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
URL: https://groups.io/g/kernelci/message/388
Cc: stable@vger.kernel.org # v4.1+
Cc: linux-mips@vger.kernel.org
virt_addr_valid() really returns a boolean value, but currently uses an
integer to represent it. Switch to the bool type to make it clearer that
we really are returning a true or false value.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: linux-mips@vger.kernel.org
The virt_addr_valid() function is meant to return true iff
virt_to_page() will return a valid struct page reference. This is true
iff the address provided is found within the unmapped address range
between PAGE_OFFSET & MAP_BASE, but we don't currently check for that
condition. Instead we simply mask the address to obtain what will be a
physical address if the virtual address is indeed in the desired range,
shift it to form a PFN & then call pfn_valid(). This can incorrectly
return true if called with a virtual address which, after masking,
happens to form a physical address corresponding to a valid PFN.
For example we may vmalloc an address in the kernel mapped region
starting a MAP_BASE & obtain the virtual address:
addr = 0xc000000000002000
When masked by virt_to_phys(), which uses __pa() & in turn CPHYSADDR(),
we obtain the following (bogus) physical address:
addr = 0x2000
In a common system with PHYS_OFFSET=0 this will correspond to a valid
struct page which should really be accessed by virtual address
PAGE_OFFSET+0x2000, causing virt_addr_valid() to incorrectly return 1
indicating that the original address corresponds to a struct page.
This is equivalent to the ARM64 change made in commit ca219452c6
("arm64: Correctly bounds check virt_addr_valid").
This fixes fallout when hardened usercopy is enabled caused by the
related commit 517e1fbeb6 ("mm/usercopy: Drop extra
is_vmalloc_or_module() check") which removed a check for the vmalloc
range that was present from the introduction of the hardened usercopy
feature.
Signed-off-by: Paul Burton <paul.burton@mips.com>
References: ca219452c6 ("arm64: Correctly bounds check virt_addr_valid")
References: 517e1fbeb6 ("mm/usercopy: Drop extra is_vmalloc_or_module() check")
Reported-by: Julien Cristau <jcristau@debian.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: YunQiang Su <ysu@wavecomp.com>
URL: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=929366
Cc: stable@vger.kernel.org # v4.12+
Cc: linux-mips@vger.kernel.org
Cc: Yunqiang Su <ysu@wavecomp.com>
As synchronous exceptions really only make sense against the current
task (otherwise how are you synchronous) remove the task parameter
from from force_sig_fault to make it explicit that is what is going
on.
The two known exceptions that deliver a synchronous exception to a
stopped ptraced task have already been changed to
force_sig_fault_to_task.
The callers have been changed with the following emacs regular expression
(with obvious variations on the architectures that take more arguments)
to avoid typos:
force_sig_fault[(]\([^,]+\)[,]\([^,]+\)[,]\([^,]+\)[,]\W+current[)]
->
force_sig_fault(\1,\2,\3)
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
In preparation for removing the task parameter from force_sig_fault
introduce force_sig_fault_to_task and use it for the two cases where
it matters.
On mips force_fcr31_sig calls force_sig_fault and is called on either
the current task, or a task that is suspended and is being switched to
by the scheduler. This is safe because the task being switched to by
the scheduler is guaranteed to be suspended. This ensures that
task->sighand is stable while the signal is delivered to it.
On parisc user_enable_single_step calls force_sig_fault and is in turn
called by ptrace_request. The function ptrace_request always calls
user_enable_single_step on a child that is stopped for tracing. The
child being traced and not reaped ensures that child->sighand is not
NULL, and that the child will not change child->sighand.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Update the calls of force_sig_fault that pass in a variable that is
set to current earlier to explicitly use current.
This is to make the next change that removes the task parameter
from force_sig_fault easier to verify.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
KVM_CAP_MAX_VCPU_ID is currently always reporting KVM_MAX_VCPU_ID on all
architectures. However, on s390x, the amount of usable CPUs is determined
during runtime - it is depending on the features of the machine the code
is running on. Since we are using the vcpu_id as an index into the SCA
structures that are defined by the hardware (see e.g. the sca_add_vcpu()
function), it is not only the amount of CPUs that is limited by the hard-
ware, but also the range of IDs that we can use.
Thus KVM_CAP_MAX_VCPU_ID must be determined during runtime on s390x, too.
So the handling of KVM_CAP_MAX_VCPU_ID has to be moved from the common
code into the architecture specific code, and on s390x we have to return
the same value here as for KVM_CAP_MAX_VCPUS.
This problem has been discovered with the kvm_create_max_vcpus selftest.
With this change applied, the selftest now passes on s390x, too.
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20190523164309.13345-9-thuth@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
All of the remaining callers pass current into force_sig so
remove the task parameter to make this obvious and to make
misuse more difficult in the future.
This also makes it clear force_sig passes current into force_sig_info.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Add ethernet nodes supported by ag71xx driver.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details you
should have received a copy of the gnu general public license along
with this program if not write to the free software foundation inc
51 franklin st fifth floor boston ma 02110 1301 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 50 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190523091649.499889647@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details you
should have received a copy of the gnu general public license along
with this program if not write to the free software foundation inc
675 mass ave cambridge ma 02139 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 441 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 or at your option any
later version
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 11 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520170858.370933192@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit 9cc342f6c4 ("treewide: prefix header search paths with
$(srctree)/") caused a build error for MIPS VDSO.
CC arch/mips/vdso/gettimeofday.o
In file included from ../arch/mips/vdso/vdso.h:26,
from ../arch/mips/vdso/gettimeofday.c:11:
../arch/mips/include/asm/page.h:12:10: fatal error: spaces.h: No such file or directory
#include <spaces.h>
^~~~~~~~~~
The cause of the error is a missing space after the compiler flag -I .
Kbuild used to have a global restriction "no space after -I", but
commit 48f6e3cf5b ("kbuild: do not drop -I without parameter") got
rid of it. Having a space after -I is no longer a big deal as far as
Kbuild is concerned.
It is still a big deal for MIPS because arch/mips/vdso/Makefile
filters the header search paths, like this:
ccflags-vdso := \
$(filter -I%,$(KBUILD_CFLAGS)) \
..., which relies on the assumption that there is no space after -I .
Fixes: 9cc342f6c4 ("treewide: prefix header search paths with $(srctree)/")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
To meet the 'i' (immediate) constraint for the asm operands,
this function must be always inlined.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-kernel@vger.kernel.org
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details you
should have received a copy of the gnu general public license along
with this program if not see http www gnu org licenses
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details [based]
[from] [clk] [highbank] [c] you should have received a copy of the
gnu general public license along with this program if not see http
www gnu org licenses
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 355 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 or
later as published by the free software foundation
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 9 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154040.848507137@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option any later version this program is distributed in the
hope that it will be useful but without any warranty without even
the implied warranty of merchantability or fitness for a particular
purpose see the gnu general public license for more details you
should have received a copy of the gnu general public license along
with this program if not write to the free software foundation inc
51 franklin street fifth floor boston ma 02110 1301 usa
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license as published by
the free software foundation either version 2 of the license or at
your option [no]_[pad]_[ctrl] any later version this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not write to the free
software foundation inc 51 franklin street fifth floor boston ma
02110 1301 usa
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-or-later
has been chosen to replace the boilerplate/reference in 176 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154040.652910950@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX license identifiers to all files which:
- Have no license information of any form
- Have MODULE_LICENCE("GPL*") inside which was used in the initial
scan/conversion to ignore the file
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add SPDX license identifiers to all files which:
- Have no license information of any form
- Have EXPORT_.*_SYMBOL_GPL inside which was used in the
initial scan/conversion to ignore the file
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- remove unneeded use of cc-option, cc-disable-warning, cc-ldoption
- exclude tracked files from .gitignore
- re-enable -Wint-in-bool-context warning
- refactor samples/Makefile
- stop building immediately if syncconfig fails
- do not sprinkle error messages when $(CC) does not exist
- move arch/alpha/defconfig to the configs subdirectory
- remove crappy header search path manipulation
- add comment lines to .config to clarify the end of menu blocks
- check uniqueness of module names (adding new warnings intentionally)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=oDeB
-----END PGP SIGNATURE-----
Merge tag 'kbuild-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- remove unneeded use of cc-option, cc-disable-warning, cc-ldoption
- exclude tracked files from .gitignore
- re-enable -Wint-in-bool-context warning
- refactor samples/Makefile
- stop building immediately if syncconfig fails
- do not sprinkle error messages when $(CC) does not exist
- move arch/alpha/defconfig to the configs subdirectory
- remove crappy header search path manipulation
- add comment lines to .config to clarify the end of menu blocks
- check uniqueness of module names (adding new warnings intentionally)
* tag 'kbuild-v5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (24 commits)
kconfig: use 'else ifneq' for Makefile to improve readability
kbuild: check uniqueness of module names
kconfig: Terminate menu blocks with a comment in the generated config
kbuild: add LICENSES to KBUILD_ALLDIRS
kbuild: remove 'addtree' and 'flags' magic for header search paths
treewide: prefix header search paths with $(srctree)/
media: prefix header search paths with $(srctree)/
media: remove unneeded header search paths
alpha: move arch/alpha/defconfig to arch/alpha/configs/defconfig
kbuild: terminate Kconfig when $(CC) or $(LD) is missing
kbuild: turn auto.conf.cmd into a mandatory include file
.gitignore: exclude .get_maintainer.ignore and .gitattributes
kbuild: add all Clang-specific flags unconditionally
kbuild: Don't try to add '-fcatch-undefined-behavior' flag
kbuild: add some extra warning flags unconditionally
kbuild: add -Wvla flag unconditionally
arch: remove dangling asm-generic wrappers
samples: guard sub-directories with CONFIG options
kbuild: re-enable int-in-bool-context warning
MAINTAINERS: kbuild: Add pattern for scripts/*vmlinux*
...
- A build fix for BMIPS5000 configurations with CONFIG_HW_PERF_EVENTS=y,
which also neatly removes some #ifdefery.
- A fix to report supported ISAs correctly on older Ingenic SoCs which
incorrectly indicate MIPSr2 support in their cop0 Config register.
- Some PCI modernization for SGI IP27 systems as part of ongoing work to
support some other SGI systems.
- A fix allowing use of appended DTB files with generic kernels.
- DMA mask fixes for SGI IP22 & Alchemy systems.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXN+icRUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN27UQD/b6+4PE/htS7dWoWwO+qYpMK2tGNG
q1WJEkxxpLSZX9YBAPNFuDuIPPq1+T+1LGxVhUmIwq5LM5jpx2MkVWdUJ6AJ
=4zY2
-----END PGP SIGNATURE-----
Merge tag 'mips_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull a few more MIPS updates from Paul Burton:
"Some SGI IP27 specific PCI rework and a batch of fixes:
- A build fix for BMIPS5000 configurations with
CONFIG_HW_PERF_EVENTS=y, which also neatly removes some #ifdefery.
- A fix to report supported ISAs correctly on older Ingenic SoCs
which incorrectly indicate MIPSr2 support in their cop0 Config
register.
- Some PCI modernization for SGI IP27 systems as part of ongoing work
to support some other SGI systems.
- A fix allowing use of appended DTB files with generic kernels.
- DMA mask fixes for SGI IP22 & Alchemy systems"
* tag 'mips_5.2_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: Alchemy: add DMA masks for on-chip ethernet
MIPS: SGI-IP22: provide missing dma_mask/coherent_dma_mask
generic: fix appended dtb support
MIPS: SGI-IP27: abstract chipset irq from bridge
MIPS: SGI-IP27: use generic PCI driver
MIPS: Fix Ingenic SoCs sometimes reporting wrong ISA
MIPS: perf: Fix build with CONFIG_CPU_BMIPS5000 enabled
Currently, the Kbuild core manipulates header search paths in a crazy
way [1].
To fix this mess, I want all Makefiles to add explicit $(srctree)/ to
the search paths in the srctree. Some Makefiles are already written in
that way, but not all. The goal of this work is to make the notation
consistent, and finally get rid of the gross hacks.
Having whitespaces after -I does not matter since commit 48f6e3cf5b
("kbuild: do not drop -I without parameter").
[1]: https://patchwork.kernel.org/patch/9632347/
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Pull more vfs mount updates from Al Viro:
"Propagation of new syscalls to other architectures + cosmetic change
from Christian (fscontext didn't follow the convention for anon inode
names)"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
uapi: Wire up the mount API syscalls on non-x86 arches [ver #2]
uapi, x86: Fix the syscall numbering of the mount API syscalls [ver #2]
uapi, fsopen: use square brackets around "fscontext" [ver #2]
include when we had clk_readl() and clk_writel(), but those are gone now
so this patch pushes the dependency out to the users of clk-provider.h.
-----BEGIN PGP SIGNATURE-----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=JjQo
-----END PGP SIGNATURE-----
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull more clk framework updates from Stephen Boyd:
"One more patch to remove io.h from clk-provider.h.
We used to need this include when we had clk_readl() and clk_writel(),
but those are gone now so this patch pushes the dependency out to the
users of clk-provider.h"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: Remove io.h from clk-provider.h
Pull thermal management updates from Zhang Rui:
- Remove the 'module' Kconfig option for thermal subsystem framework
because the thermal framework are required to be ready as early as
possible to avoid overheat at boot time (Daniel Lezcano)
- Fix a bug that thermal framework pokes disabled thermal zones upon
resume (Wei Wang)
- A couple of cleanups and trivial fixes on int340x thermal drivers
(Srinivas Pandruvada, Zhang Rui, Sumeet Pawnikar)
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
drivers: thermal: processor_thermal: Downgrade error message
mlxsw: Remove obsolete dependency on THERMAL=m
hwmon/drivers/core: Simplify complex dependency
thermal/drivers/core: Fix typo in the option name
thermal/drivers/core: Remove depends on THERMAL in Kconfig
thermal/drivers/core: Remove module unload code
thermal/drivers/core: Remove the module Kconfig's option
thermal: core: skip update disabled thermal zones after suspend
thermal: make device_register's type argument const
thermal: intel: int340x: processor_thermal_device: simplify to get driver data
thermal/int3403_thermal: favor _TMP instead of PTYP
Christoph Hellwig writes:
This is a series doing two somewhat interwinded things. It improves
the asm-generic nommu uaccess helper to optionally be entirely generic
and not require any arch helpers for the actual uaccess. For the
generic uaccess.h to actually be generically useful I also had to kill
off the mess we made of <asm/segment.h>, which really shouldn't exist
on most architectures.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=X2CH
-----END PGP SIGNATURE-----
Merge tag 'asm-generic-nommu' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull nommu generic uaccess updates from Arnd Bergmann:
"asm-generic: kill <asm/segment.h> and improve nommu generic uaccess helpers
Christoph Hellwig writes:
This is a series doing two somewhat interwinded things. It improves
the asm-generic nommu uaccess helper to optionally be entirely
generic and not require any arch helpers for the actual uaccess.
For the generic uaccess.h to actually be generically useful I also
had to kill off the mess we made of <asm/segment.h>, which really
shouldn't exist on most architectures"
* tag 'asm-generic-nommu' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic: optimize generic uaccess for 8-byte loads and stores
asm-generic: provide entirely generic nommu uaccess
arch: mostly remove <asm/segment.h>
asm-generic: don't include <asm/segment.h> from <asm/uaccess.h>
Wire up the mount API syscalls on non-x86 arches.
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Makes au1000-eth work again, tested on DB1500.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
This prepares to move CONFIG_OPTIMIZE_INLINING from x86 to a common
place. We need to eliminate potential issues beforehand.
If it is enabled for mips, the following errors are reported:
arch/mips/mm/sc-mips.o: In function `mips_sc_prefetch_enable.part.2':
sc-mips.c:(.text+0x98): undefined reference to `mips_gcr_base'
sc-mips.c:(.text+0x9c): undefined reference to `mips_gcr_base'
sc-mips.c:(.text+0xbc): undefined reference to `mips_gcr_base'
sc-mips.c:(.text+0xc8): undefined reference to `mips_gcr_base'
sc-mips.c:(.text+0xdc): undefined reference to `mips_gcr_base'
arch/mips/mm/sc-mips.o:sc-mips.c:(.text.unlikely+0x44): more undefined references to `mips_gcr_base'
Link: http://lkml.kernel.org/r/20190423034959.13525-7-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Brezillon <bbrezillon@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Malaterre <malat@debian.org>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This prepares to move CONFIG_OPTIMIZE_INLINING from x86 to a common
place. We need to eliminate potential issues beforehand.
If it is enabled for mips, the following error is reported:
arch/mips/kernel/cpu-bugs64.c: In function 'mult_sh_align_mod.constprop':
arch/mips/kernel/cpu-bugs64.c:33:2: error: asm operand 1 probably doesn't match constraints [-Werror]
asm volatile(
^~~
arch/mips/kernel/cpu-bugs64.c:33:2: error: asm operand 1 probably doesn't match constraints [-Werror]
asm volatile(
^~~
arch/mips/kernel/cpu-bugs64.c:33:2: error: impossible constraint in 'asm'
asm volatile(
^~~
arch/mips/kernel/cpu-bugs64.c:33:2: error: impossible constraint in 'asm'
asm volatile(
^~~
Link: http://lkml.kernel.org/r/20190423034959.13525-4-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Boris Brezillon <bbrezillon@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Malaterre <malat@debian.org>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Most architectures do not need the memblock memory after the page
allocator is initialized, but only few enable ARCH_DISCARD_MEMBLOCK in the
arch Kconfig.
Replacing ARCH_DISCARD_MEMBLOCK with ARCH_KEEP_MEMBLOCK and inverting the
logic makes it clear which architectures actually use memblock after
system initialization and skips the necessity to add ARCH_DISCARD_MEMBLOCK
to the architectures that are still missing that option.
Link: http://lkml.kernel.org/r/1556102150-32517-1-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Various architectures including x86 poison the freed initrd memory. Do
the same in the generic free_initrd_mem implementation and switch a few
more architectures that are identical to the generic code over to it now.
Link: http://lkml.kernel.org/r/20190213174621.29297-9-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Cc: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Cc: Steven Price <steven.price@arm.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
To facilitate additional options to get_user_pages_fast() change the
singular write parameter to be gup_flags.
This patch does not change any functionality. New functionality will
follow in subsequent patches.
Some of the get_user_pages_fast() call sites were unchanged because they
already passed FOLL_WRITE or 0 for the write parameter.
NOTE: It was suggested to change the ordering of the get_user_pages_fast()
arguments to ensure that callers were converted. This breaks the current
GUP call site convention of having the returned pages be the final
parameter. So the suggestion was rejected.
Link: http://lkml.kernel.org/r/20190328084422.29911-4-ira.weiny@intel.com
Link: http://lkml.kernel.org/r/20190317183438.2057-4-ira.weiny@intel.com
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Mike Marshall <hubcap@omnibond.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Set dma_masks for SGIWD93 and SGISEEQ otherwise DMA allocations fails
and causes not working SCSI/ethernet.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Appended DTB support is mostly intended to be used on legacy systems,
but it is a valid feature that can be enabled for generic platform,
which currently doesn't support it - if selected, the appended DTB will
be ignored by the platform startup code.
During kernel startup, the appended DTB's location is stored in
fw_passed_dtb if the init code finds what appears to be a valid DTB.
Otherwise (if a0 == -2), a1 is stored in fw_passed_dtb, so either way it
will always point to either a user-passed DTB or built-in DTB.
Signed-off-by: Marcin Nowakowski <marcin.nowakowski@fungible.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
MTD core changes:
- New AFS partition parser
- Update MAINTAINERS entry
- Use of fall-throughs markers
NAND core changes:
- Support having the bad block markers in either the first, second or
last page of a block. The combination of all three location is now
possible.
- Constification of NAND_OP_PARSER(_PATTERN) elements.
- Generic NAND DT bindings changed to yaml format (can be used to
check the proposed bindings. First platform to be fully supported:
sunxi.
- Stopped using several legacy hooks.
- Preparation to use the generic NAND layer with the addition of
several helpers and the removal of the struct nand_chip from generic
functions.
- Kconfig cleanup to prepare the introduction of external ECC engines
support.
- Fallthrough comments.
- Introduction of the SPI-mem dirmap API for SPI-NAND devices.
Raw NAND controller drivers changes:
- nandsim:
* Switch to ->exec-op().
- meson:
* Misc cleanups and fixes.
* New OOB layout.
- Sunxi:
* A23/A33 NAND DMA support.
- Ingenic:
* Full reorganization and cleanup.
* Clear separation between NAND controller and ECC engine.
* Support JZ4740 an JZ4725B.
- Denali:
* Clear controller/chip separation.
* ->exec_op() migration.
* Various cleanups.
- fsl_elbc:
* Enable software ECC support.
- Atmel:
* Sam9x60 support.
- GPMI:
* Introduce the GPMI_IS_MXS() macro.
- Various trivial/spelling/coding style fixes.
SPI NOR core changes:
- Print all JEDEC ID bytes on error
- Fix comment of spi_nor_find_best_erase_type()
- Add region locking flags for s25fl512s
SPI NOR controller drivers changes:
- intel-spi:
* Avoid crossing 4K address boundary on read/write
* Add support for Intel Comet Lake SPI serial flash
-----BEGIN PGP SIGNATURE-----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=HXap
-----END PGP SIGNATURE-----
Merge tag 'mtd/for-5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Richard Weinberger:
"MTD core changes:
- New AFS partition parser
- Update MAINTAINERS entry
- Use of fall-throughs markers
NAND core changes:
- Support having the bad block markers in either the first, second or
last page of a block. The combination of all three location is now
possible.
- Constification of NAND_OP_PARSER(_PATTERN) elements.
- Generic NAND DT bindings changed to yaml format (can be used to
check the proposed bindings. First platform to be fully supported:
sunxi.
- Stopped using several legacy hooks.
- Preparation to use the generic NAND layer with the addition of
several helpers and the removal of the struct nand_chip from
generic functions.
- Kconfig cleanup to prepare the introduction of external ECC engines
support.
- Fallthrough comments.
- Introduction of the SPI-mem dirmap API for SPI-NAND devices.
Raw NAND controller drivers changes:
- nandsim:
- Switch to ->exec-op().
- meson:
- Misc cleanups and fixes.
- New OOB layout.
- Sunxi:
- A23/A33 NAND DMA support.
- Ingenic:
- Full reorganization and cleanup.
- Clear separation between NAND controller and ECC engine.
- Support JZ4740 an JZ4725B.
- Denali:
- Clear controller/chip separation.
- ->exec_op() migration.
- Various cleanups.
- fsl_elbc:
- Enable software ECC support.
- Atmel:
- Sam9x60 support.
- GPMI:
- Introduce the GPMI_IS_MXS() macro.
- Various trivial/spelling/coding style fixes.
SPI NOR core changes:
- Print all JEDEC ID bytes on error
- Fix comment of spi_nor_find_best_erase_type()
- Add region locking flags for s25fl512s
SPI NOR controller drivers changes:
- intel-spi:
- Avoid crossing 4K address boundary on read/write
- Add support for Intel Comet Lake SPI serial flash"
* tag 'mtd/for-5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (120 commits)
mtd: part: fix incorrect format specifier for an unsigned long long
mtd: lpddr_cmds: Mark expected switch fall-through
mtd: phram: Mark expected switch fall-throughs
mtd: cfi_cmdset_0002: Mark expected switch fall-throughs
mtd: cfi_util: mark expected switch fall-throughs
MAINTAINERS: MTD Git repository is hosted on kernel.org
MAINTAINERS: Update jffs2 entry
mtd: afs: add v2 partition parsing
mtd: afs: factor the IIS read into partition parser
mtd: afs: factor footer parsing into the v1 part parsing
mtd: factor out v1 partition parsing
mtd: afs: simplify partition detection
mtd: afs: simplify partition parsing
mtd: partitions: Add OF support to AFS partitions
mtd: partitions: Add AFS partitions DT bindings
mtd: afs: Move AFS partition parser to parsers subdir
mtd: maps: Make uclinux_ram_map static
mtd: maps: Allow MTD_PHYSMAP with MTD_RAM
MAINTAINERS: Add myself as MTD maintainer
MAINTAINERS: Remove my name from the MTD and NAND entries
...
Bridge ASIC is widely used in different SGI systems, but the connected
chipset is either HUB, HEART or BEDROCK. This commit switches to
irq domain hierarchy for hub and bridge interrupts to get bridge
setup out of hub interrupt code.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
[paul.burton@mips.com:
Resolve conflict with commit 69a07a41d9 ("MIPS: SGI-IP27: rework HUB
interrupts").]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Converted bridge code to a platform driver using the PCI generic driver
framework and use adding platform devices during xtalk scan. This allows
easier sharing bridge driver for other SGI platforms like IP30 (Octane) and
IP35 (Origin 3k, Fuel, Tezro).
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
[paul.burton@mips.com:
- Leave __phys_to_dma(), __dma_to_phys() & pcibus_to_node() in
arch/mips/pci/pci-ip27.c since the motivation for moving them
disappeared when the driver stopped being moved to drivers/pci.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The config0 register in the Xburst CPUs with a processor ID of
PRID_COMP_INGENIC_D0 report themselves as MIPS32r2 compatible,
but they don't actually support this ISA.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: od@zcrc.me
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
around because we've finally gotten around to fixing some long standing issues.
There's still work to do though, so this PR is largely laying down the
foundation for all the driver changes to come in the next merge window.
The first problem we're alleviating is how parents of clks are specified. With
the new method, we should see lots of drivers migrate away from the current
design of string comparisons on the entire clk tree to a more direct method
where they can use clk_hw pointers or more localized names specified in DT or
via clkdev. This should reduce our reliance on string comparisons for all the
topology description logic that we've been using for years and hopefully speed
some things up while avoiding problems we have with generating clk names.
Beyond that we also got rid of the CLK_IS_BASIC flag because it wasn't really
helping anyone and we introduced big-endian versions of the basic clk types so
that we can get rid of clk_{readl,writel}(). Both of these are things that
driver developers have tried to use over the years that I typically bat away
during code reviews because they're not useful. It's great to see these two
things go away so maintainers can save time not worrying about these things.
On the driver side we got the usual collection of new SoC support and
non-critical fixes and updates to existing code. The big topics that stand out
are the new driver support for Mediatek MT8183 and MT8516 SoCs, Amlogic Meson8b
and G12a SoCs, and the SiFive FU540 SoC. The other patches in the driver pile
are mostly fixes for things that are being used for the first time or additions
for clks that couldn't be tested before because there wasn't a consumer driver
that exercised them. Details are below and also in the sub-maintainer tags.
Core:
- Remove clk_readl() and introduce BE versions of basic clk types
- Rewrite how clk parents can be specified to allow DT/clkdev lookups
- Removal of the CLK_IS_BASIC clk flag
- Framework documentation updates and fixes
New Drivers:
- Support for STM32F769
- AT91 sam9x60 PMC support
- SiFive FU540 PRCI and PLL support
- Qualcomm QCS404 CDSP clk support
- Qualcomm QCS404 Turing clk support
- Mediatek MT8183 clock support
- Mediatek MT8516 clock support
- Milbeaut M10V clk controller support
- Support for Cirrus Logic Lochnagar clks
Updates:
- Rework AT91 sckc DT bindings
- Fix slow RC oscillator issue on sama5d3
- Mark UFS clk as critical on Hi-Silicon hi3660 SoCs
- Various static analysis fixes/finds and const markings
- Video Engine (ECLK) support on Aspeed SoCs
- Xilinx ZynqMP Versal platform support
- Convert Xilinx ZynqMP driver to be struct oriented
- Fixes for Rockchip rk3328 and rk3288 SoCs
- Sub-type for Rockchip SoCs where mux and divider aren't a single register
- Remove SNVS clock from i.MX7UPL clock driver and bindings
- Improve i.MX5 clock driver for i.MX50 support
- Addition of ADC clock definition for Exynos 5410 SoC (Odroid XU)
- Export a new clock for the MBUS controller on the A13
- Allwinner H6 fixes to support a finer clocking of the video and VPU engines
- Add g12a support in the Amlogic axg audio clock controller
- Add missing PCI USB clock on Rensas RZ/N1
- Add Z2 (Cortex-A53) clocks on Rensas R-Car E3 and RZ/G2E
- A new helper DIV64_U64_ROUND_CLOSEST() in <linux/math64.h>
- VPU and Video Decoder clocks on Amlogic Meson8b
- Finally remove the wrong ABP Meson8b clock id
- Add Video Decoder, PCIe PLL, and CPU Clocks on Amlogic G12A
- Re-expose SAR_ADC_SEL and CTS_OSCIN on Amlogic G12A AO clock controller
- Un-expose some Amlogic AXG-Audio input clocks IDs
-----BEGIN PGP SIGNATURE-----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=/uso
-----END PGP SIGNATURE-----
Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk framework updates from Stephen Boyd:
"We have a couple new features and changes in the core clk framework
this time around because we've finally gotten around to fixing some
long standing issues. There's still work to do though, so this pull
request is largely laying down the foundation for all the driver
changes to come in the next merge window.
The first problem we're alleviating is how parents of clks are
specified. With the new method, we should see lots of drivers migrate
away from the current design of string comparisons on the entire clk
tree to a more direct method where they can use clk_hw pointers or
more localized names specified in DT or via clkdev. This should reduce
our reliance on string comparisons for all the topology description
logic that we've been using for years and hopefully speed some things
up while avoiding problems we have with generating clk names.
Beyond that we also got rid of the CLK_IS_BASIC flag because it wasn't
really helping anyone and we introduced big-endian versions of the
basic clk types so that we can get rid of clk_{readl,writel}(). Both
of these are things that driver developers have tried to use over the
years that I typically bat away during code reviews because they're
not useful. It's great to see these two things go away so maintainers
can save time not worrying about these things.
On the driver side we got the usual collection of new SoC support and
non-critical fixes and updates to existing code. The big topics that
stand out are the new driver support for Mediatek MT8183 and MT8516
SoCs, Amlogic Meson8b and G12a SoCs, and the SiFive FU540 SoC. The
other patches in the driver pile are mostly fixes for things that are
being used for the first time or additions for clks that couldn't be
tested before because there wasn't a consumer driver that exercised
them. Details are below and also in the sub-maintainer tags.
Core:
- Remove clk_readl() and introduce BE versions of basic clk types
- Rewrite how clk parents can be specified to allow DT/clkdev lookups
- Removal of the CLK_IS_BASIC clk flag
- Framework documentation updates and fixes
New Drivers:
- Support for STM32F769
- AT91 sam9x60 PMC support
- SiFive FU540 PRCI and PLL support
- Qualcomm QCS404 CDSP clk support
- Qualcomm QCS404 Turing clk support
- Mediatek MT8183 clock support
- Mediatek MT8516 clock support
- Milbeaut M10V clk controller support
- Support for Cirrus Logic Lochnagar clks
Updates:
- Rework AT91 sckc DT bindings
- Fix slow RC oscillator issue on sama5d3
- Mark UFS clk as critical on Hi-Silicon hi3660 SoCs
- Various static analysis fixes/finds and const markings
- Video Engine (ECLK) support on Aspeed SoCs
- Xilinx ZynqMP Versal platform support
- Convert Xilinx ZynqMP driver to be struct oriented
- Fixes for Rockchip rk3328 and rk3288 SoCs
- Sub-type for Rockchip SoCs where mux and divider aren't a single register
- Remove SNVS clock from i.MX7UPL clock driver and bindings
- Improve i.MX5 clock driver for i.MX50 support
- Addition of ADC clock definition for Exynos 5410 SoC (Odroid XU)
- Export a new clock for the MBUS controller on the A13
- Allwinner H6 fixes to support a finer clocking of the video and VPU engines
- Add g12a support in the Amlogic axg audio clock controller
- Add missing PCI USB clock on Rensas RZ/N1
- Add Z2 (Cortex-A53) clocks on Rensas R-Car E3 and RZ/G2E
- A new helper DIV64_U64_ROUND_CLOSEST() in <linux/math64.h>
- VPU and Video Decoder clocks on Amlogic Meson8b
- Finally remove the wrong ABP Meson8b clock id
- Add Video Decoder, PCIe PLL, and CPU Clocks on Amlogic G12A
- Re-expose SAR_ADC_SEL and CTS_OSCIN on Amlogic G12A AO clock controller
- Un-expose some Amlogic AXG-Audio input clocks IDs"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (172 commits)
clk: Cache core in clk_fetch_parent_index() without names
clk: imx: correct pfdv2 gate_bit/vld_bit operations
clk: sifive: add a driver for the SiFive FU540 PRCI IP block
clk: analogbits: add Wide-Range PLL library
clk: imx: clk-pllv3: mark expected switch fall-throughs
clk: imx8mq: Add dsi_ipg_div
clk: imx: pllv4: add fractional-N pll support
clk: sunxi-ng: Use the correct style for SPDX License Identifier
clk: sprd: Use the correct style for SPDX License Identifier
clk: renesas: Use the correct style for SPDX License Identifier
clk: qcom: Use the correct style for SPDX License Identifier
clk: davinci: Use the correct style for SPDX License Identifier
clk: actions: Use the correct style for SPDX License Identifier
clk: imx: keep uart clock on during system boot
clk: imx: correct i.MX7D AV PLL num/denom offset
dt-bindings: clk: add documentation for the SiFive PRCI driver
clk: stm32mp1: Add ddrperfm clock
clk: Remove CLK_IS_BASIC clk flag
clock: milbeaut: Add Milbeaut M10V clock controller
dt-bindings: clock: milbeaut: add Milbeaut clock description
...
- A set of memblock initialization improvements thanks to Serge Semin,
tidying up after our conversion from bootmem to memblock back in
v4.20.
- Our eBPF JIT the previously supported only MIPS64r2 through MIPS64r5
is improved to also support MIPS64r6. Support for MIPS32 systems is
introduced, with the caveat that it only works for programs that don't
use 64 bit registers or operations - those will bail out & need to be
interpreted.
- Improvements to the allocation & configuration of our exception vector
that should fix issues seen on some platforms using recent versions of
U-Boot.
- Some minor improvements to code generated for jump labels, along with
enabling them by default for generic kernels.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXNNB2RUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN1zeAD/U/ScowcQE8ynoY97nA70d3UmbETH
YETUX5WcOfR65O8A/1hvMX8QJ1x87XUlNTkE6Gdh/itAZJpJWiSo3dnd1GoF
=L9IJ
-----END PGP SIGNATURE-----
Merge tag 'mips_5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
- A set of memblock initialization improvements thanks to Serge Semin,
tidying up after our conversion from bootmem to memblock back in
v4.20.
- Our eBPF JIT the previously supported only MIPS64r2 through MIPS64r5
is improved to also support MIPS64r6. Support for MIPS32 systems is
introduced, with the caveat that it only works for programs that
don't use 64 bit registers or operations - those will bail out & need
to be interpreted.
- Improvements to the allocation & configuration of our exception
vector that should fix issues seen on some platforms using recent
versions of U-Boot.
- Some minor improvements to code generated for jump labels, along with
enabling them by default for generic kernels.
* tag 'mips_5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (27 commits)
mips: Manually call fdt_init_reserved_mem() method
mips: Make sure dt memory regions are valid
mips: Perform early low memory test
mips: Dump memblock regions for debugging
mips: Add reserve-nomap memory type support
mips: Use memblock to reserve the __nosave memory range
mips: Discard post-CMA-init foreach loop
mips: Reserve memory for the kernel image resources
MIPS: Remove duplicate EBase configuration
MIPS: Sync icache for whole exception vector
MIPS: Always allocate exception vector for MIPSr2+
MIPS: Use memblock_phys_alloc() for exception vector
mips: Combine memblock init and memory reservation loops
mips: Discard rudiments from bootmem_init
mips: Make sure kernel .bss exists in boot mem pool
mips: vdso: drop unnecessary cc-ldoption
Revert "MIPS: ralink: fix cpu clock of mt7621 and add dt clk devices"
MIPS: generic: Enable CONFIG_JUMP_LABEL
MIPS: jump_label: Use compact branches for >= r6
MIPS: jump_label: Remove redundant nops
...
Pull networking updates from David Miller:
"Highlights:
1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.
2) Add fib_sync_mem to control the amount of dirty memory we allow to
queue up between synchronize RCU calls, from David Ahern.
3) Make flow classifier more lockless, from Vlad Buslov.
4) Add PHY downshift support to aquantia driver, from Heiner
Kallweit.
5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
contention on SLAB spinlocks in heavy RPC workloads.
6) Partial GSO offload support in XFRM, from Boris Pismenny.
7) Add fast link down support to ethtool, from Heiner Kallweit.
8) Use siphash for IP ID generator, from Eric Dumazet.
9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
entries, from David Ahern.
10) Move skb->xmit_more into a per-cpu variable, from Florian
Westphal.
11) Improve eBPF verifier speed and increase maximum program size,
from Alexei Starovoitov.
12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
spinlocks. From Neil Brown.
13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.
14) Improve link partner cap detection in generic PHY code, from
Heiner Kallweit.
15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
Maguire.
16) Remove SKB list implementation assumptions in SCTP, your's truly.
17) Various cleanups, optimizations, and simplifications in r8169
driver. From Heiner Kallweit.
18) Add memory accounting on TX and RX path of SCTP, from Xin Long.
19) Switch PHY drivers over to use dynamic featue detection, from
Heiner Kallweit.
20) Support flow steering without masking in dpaa2-eth, from Ioana
Ciocoi.
21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
Pirko.
22) Increase the strict parsing of current and future netlink
attributes, also export such policies to userspace. From Johannes
Berg.
23) Allow DSA tag drivers to be modular, from Andrew Lunn.
24) Remove legacy DSA probing support, also from Andrew Lunn.
25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
Haabendal.
26) Add a generic tracepoint for TX queue timeouts to ease debugging,
from Cong Wang.
27) More indirect call optimizations, from Paolo Abeni"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
cxgb4: Fix error path in cxgb4_init_module
net: phy: improve pause mode reporting in phy_print_status
dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
net: macb: Change interrupt and napi enable order in open
net: ll_temac: Improve error message on error IRQ
net/sched: remove block pointer from common offload structure
net: ethernet: support of_get_mac_address new ERR_PTR error
net: usb: smsc: fix warning reported by kbuild test robot
staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
net: dsa: support of_get_mac_address new ERR_PTR error
net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
vrf: sit mtu should not be updated when vrf netdev is the link
net: dsa: Fix error cleanup path in dsa_init_module
l2tp: Fix possible NULL pointer dereference
taprio: add null check on sched_nest to avoid potential null pointer dereference
net: mvpp2: cls: fix less than zero check on a u32 variable
net_sched: sch_fq: handle non connected flows
net_sched: sch_fq: do not assume EDT packets are ordered
net: hns3: use devm_kcalloc when allocating desc_cb
net: hns3: some cleanup for struct hns3_enet_ring
...
-----BEGIN PGP SIGNATURE-----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=p8Fp
-----END PGP SIGNATURE-----
Merge tag 'audit-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"We've got a reasonably broad set of audit patches for the v5.2 merge
window, the highlights are below:
- The biggest change, and the source of all the arch/* changes, is
the patchset from Dmitry to help enable some of the work he is
doing around PTRACE_GET_SYSCALL_INFO.
To be honest, including this in the audit tree is a bit of a
stretch, but it does help move audit a little further along towards
proper syscall auditing for all arches, and everyone else seemed to
agree that audit was a "good" spot for this to land (or maybe they
just didn't want to merge it? dunno.).
- We can now audit time/NTP adjustments.
- We continue the work to connect associated audit records into a
single event"
* tag 'audit-pr-20190507' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: (21 commits)
audit: fix a memory leak bug
ntp: Audit NTP parameters adjustment
timekeeping: Audit clock adjustments
audit: purge unnecessary list_empty calls
audit: link integrity evm_write_xattrs record to syscall event
syscall_get_arch: add "struct task_struct *" argument
unicore32: define syscall_get_arch()
Move EM_UNICORE to uapi/linux/elf-em.h
nios2: define syscall_get_arch()
nds32: define syscall_get_arch()
Move EM_NDS32 to uapi/linux/elf-em.h
m68k: define syscall_get_arch()
hexagon: define syscall_get_arch()
Move EM_HEXAGON to uapi/linux/elf-em.h
h8300: define syscall_get_arch()
c6x: define syscall_get_arch()
arc: define syscall_get_arch()
Move EM_ARCOMPACT and EM_ARCV2 to uapi/linux/elf-em.h
audit: Make audit_log_cap and audit_copy_inode static
audit: connect LOGIN record to its syscall record
...
-----BEGIN PGP SIGNATURE-----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=Ot0g
-----END PGP SIGNATURE-----
Merge tag 'for-5.2/block-20190507' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Nothing major in this series, just fixes and improvements all over the
map. This contains:
- Series of fixes for sed-opal (David, Jonas)
- Fixes and performance tweaks for BFQ (via Paolo)
- Set of fixes for bcache (via Coly)
- Set of fixes for md (via Song)
- Enabling multi-page for passthrough requests (Ming)
- Queue release fix series (Ming)
- Device notification improvements (Martin)
- Propagate underlying device rotational status in loop (Holger)
- Removal of mtip32xx trim support, which has been disabled for years
(Christoph)
- Improvement and cleanup of nvme command handling (Christoph)
- Add block SPDX tags (Christoph)
- Cleanup/hardening of bio/bvec iteration (Christoph)
- A few NVMe pull requests (Christoph)
- Removal of CONFIG_LBDAF (Christoph)
- Various little fixes here and there"
* tag 'for-5.2/block-20190507' of git://git.kernel.dk/linux-block: (164 commits)
block: fix mismerge in bvec_advance
block: don't drain in-progress dispatch in blk_cleanup_queue()
blk-mq: move cancel of hctx->run_work into blk_mq_hw_sysfs_release
blk-mq: always free hctx after request queue is freed
blk-mq: split blk_mq_alloc_and_init_hctx into two parts
blk-mq: free hw queue's resource in hctx's release handler
blk-mq: move cancel of requeue_work into blk_mq_release
blk-mq: grab .q_usage_counter when queuing request from plug code path
block: fix function name in comment
nvmet: protect discovery change log event list iteration
nvme: mark nvme_core_init and nvme_core_exit static
nvme: move command size checks to the core
nvme-fabrics: check more command sizes
nvme-pci: check more command sizes
nvme-pci: remove an unneeded variable initialization
nvme-pci: unquiesce admin queue on shutdown
nvme-pci: shutdown on timeout during deletion
nvme-pci: fix psdt field for single segment sgls
nvme-multipath: don't print ANA group state by default
nvme-multipath: split bios with the ns_head bio_set before submitting
...
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEE7btrcuORLb1XUhEwjrBW1T7ssS0FAlzReuoACgkQjrBW1T7s
sS1uvBAA16pgnhRNxNTrp3LYft6lUWmF4n0baOTVtQNLhPjpwaOxHIrCBugkQCJB
QcQ9IQSOvIkaEW0XAQoPBaeLviiKhHOFw1Fv89OtW6xUidSfSV15lcI9f1F2pCm2
4yCL/8XvL6M0NhxiwftJAkWOXeDNLfjFnLwyLxBfgg3EeyqMgUB8raeosEID0ORR
gm2/g8DYS2r+KNqM/F4xvMSgabfi2bGk+8BtAaVnftJfstpRNrqKwWnSK3Wspj1l
5gkb8gSsiY6ns3V6RgNHrFlhevFg8V+VjcJt7FR+aUEjOkcoiXas/PhvamMzdsn/
FM1F/A0pM8FSybIUClhnnnxNPc+p8ZN/71YQAPs+Mnh3xvbtKea2lkhC+Xv4OpK3
edutSZWFaiIery82Rk00H3vqiSF1+kRIXSpZSS4mElk4FsVljkyH+nSP7rbmE2MR
EQe+kKnZl8QzWrVbnODC+EVvvVpA2bXDvENJmvKqus+t2G0OdV7Iku3F5E3KjF8k
S5RRV1zuBF3ugqnjmYrVmJtpEA8mxClmqvg6okru+qW6ngO5oOgVpPLjWn1CXcdj
wcuQ6Pe1QwAHS54e9WSWgCHVssLvm9nCdCqypdNaoyGWmbTWntwlrY7Y0JUQnAbB
6/G/DQQiCWY9y8bMZlTEydhIpgcsdROuPYv+oHF5+eQQthsWwHc=
=LH11
-----END PGP SIGNATURE-----
Merge tag 'pidfd-v5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull pidfd updates from Christian Brauner:
"This patchset makes it possible to retrieve pidfds at process creation
time by introducing the new flag CLONE_PIDFD to the clone() system
call. Linus originally suggested to implement this as a new flag to
clone() instead of making it a separate system call.
After a thorough review from Oleg CLONE_PIDFD returns pidfds in the
parent_tidptr argument. This means we can give back the associated pid
and the pidfd at the same time. Access to process metadata information
thus becomes rather trivial.
As has been agreed, CLONE_PIDFD creates file descriptors based on
anonymous inodes similar to the new mount api. They are made
unconditional by this patchset as they are now needed by core kernel
code (vfs, pidfd) even more than they already were before (timerfd,
signalfd, io_uring, epoll etc.). The core patchset is rather small.
The bulky looking changelist is caused by David's very simple changes
to Kconfig to make anon inodes unconditional.
A pidfd comes with additional information in fdinfo if the kernel
supports procfs. The fdinfo file contains the pid of the process in
the callers pid namespace in the same format as the procfs status
file, i.e. "Pid:\t%d".
To remove worries about missing metadata access this patchset comes
with a sample/test program that illustrates how a combination of
CLONE_PIDFD and pidfd_send_signal() can be used to gain race-free
access to process metadata through /proc/<pid>.
Further work based on this patchset has been done by Joel. His work
makes pidfds pollable. It finished too late for this merge window. I
would prefer to have it sitting in linux-next for a while and send it
for inclusion during the 5.3 merge window"
* tag 'pidfd-v5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
samples: show race-free pidfd metadata access
signal: support CLONE_PIDFD with pidfd_send_signal
clone: add CLONE_PIDFD
Make anon_inodes unconditional
Remove mmiowb() from the kernel memory barrier API and instead, for
architectures that need it, hide the barrier inside spin_unlock() when
MMIO has been performed inside the critical section.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAlzMFaUACgkQt6xw3ITB
YzRICQgAiv7wF/yIbBhDOmCNCAKDO59chvFQWxXWdGk/aAB56kwKAMXJgLOvlMG/
VRuuLyParTFQETC3jaxKgnO/1hb+PZLDt2Q2KqixtjIzBypKUPWvK2sf6THhSRF1
GK0DBVUd1rCrWrR815+SPb8el4xXtdBzvAVB+Fx35PXVNpdRdqCkK+EQ6UnXGokm
rXXHbnfsnquBDtmb4CR4r2beH+aNElXbdt0Kj8VcE5J7f7jTdW3z6Q9WFRvdKmK7
yrsxXXB2w/EsWXOwFp0SLTV5+fgeGgTvv8uLjDw+SG6t0E0PebxjNAflT7dPrbYL
WecjKC9WqBxrGY+4ew6YJP70ijLBCw==
=aC8m
-----END PGP SIGNATURE-----
Merge tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull mmiowb removal from Will Deacon:
"Remove Mysterious Macro Intended to Obscure Weird Behaviours (mmiowb())
Remove mmiowb() from the kernel memory barrier API and instead, for
architectures that need it, hide the barrier inside spin_unlock() when
MMIO has been performed inside the critical section.
The only relatively recent changes have been addressing review
comments on the documentation, which is in a much better shape thanks
to the efforts of Ben and Ingo.
I was initially planning to split this into two pull requests so that
you could run the coccinelle script yourself, however it's been plain
sailing in linux-next so I've just included the whole lot here to keep
things simple"
* tag 'arm64-mmiowb' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (23 commits)
docs/memory-barriers.txt: Update I/O section to be clearer about CPU vs thread
docs/memory-barriers.txt: Fix style, spacing and grammar in I/O section
arch: Remove dummy mmiowb() definitions from arch code
net/ethernet/silan/sc92031: Remove stale comment about mmiowb()
i40iw: Redefine i40iw_mmiowb() to do nothing
scsi/qla1280: Remove stale comment about mmiowb()
drivers: Remove explicit invocations of mmiowb()
drivers: Remove useless trailing comments from mmiowb() invocations
Documentation: Kill all references to mmiowb()
riscv/mmiowb: Hook up mmwiob() implementation to asm-generic code
powerpc/mmiowb: Hook up mmwiob() implementation to asm-generic code
ia64/mmiowb: Add unconditional mmiowb() to arch_spin_unlock()
mips/mmiowb: Add unconditional mmiowb() to arch_spin_unlock()
sh/mmiowb: Add unconditional mmiowb() to arch_spin_unlock()
m68k/io: Remove useless definition of mmiowb()
nds32/io: Remove useless definition of mmiowb()
x86/io: Remove useless definition of mmiowb()
arm64/io: Remove useless definition of mmiowb()
ARM/io: Remove useless definition of mmiowb()
mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors
...
Pull locking updates from Ingo Molnar:
"Here are the locking changes in this cycle:
- rwsem unification and simpler micro-optimizations to prepare for
more intrusive (and more lucrative) scalability improvements in
v5.3 (Waiman Long)
- Lockdep irq state tracking flag usage cleanups (Frederic
Weisbecker)
- static key improvements (Jakub Kicinski, Peter Zijlstra)
- misc updates, cleanups and smaller fixes"
* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
locking/lockdep: Remove unnecessary unlikely()
locking/static_key: Don't take sleeping locks in __static_key_slow_dec_deferred()
locking/static_key: Factor out the fast path of static_key_slow_dec()
locking/static_key: Add support for deferred static branches
locking/lockdep: Test all incompatible scenarios at once in check_irq_usage()
locking/lockdep: Avoid bogus Clang warning
locking/lockdep: Generate LOCKF_ bit composites
locking/lockdep: Use expanded masks on find_usage_*() functions
locking/lockdep: Map remaining magic numbers to lock usage mask names
locking/lockdep: Move valid_state() inside CONFIG_TRACE_IRQFLAGS && CONFIG_PROVE_LOCKING
locking/rwsem: Prevent unneeded warning during locking selftest
locking/rwsem: Optimize rwsem structure for uncontended lock acquisition
locking/rwsem: Enable lock event counting
locking/lock_events: Don't show pvqspinlock events on bare metal
locking/lock_events: Make lock_events available for all archs & other locks
locking/qspinlock_stat: Introduce generic lockevent_*() counting APIs
locking/rwsem: Enhance DEBUG_RWSEMS_WARN_ON() macro
locking/rwsem: Add debug check for __down_read*()
locking/rwsem: Micro-optimize rwsem_try_read_lock_unqueued()
locking/rwsem: Move rwsem internal function declarations to rwsem-xadd.h
...
Pull unified TLB flushing from Ingo Molnar:
"This contains the generic mmu_gather feature from Peter Zijlstra,
which is an all-arch unification of TLB flushing APIs, via the
following (broad) steps:
- enhance the <asm-generic/tlb.h> APIs to cover more arch details
- convert most TLB flushing arch implementations to the generic
<asm-generic/tlb.h> APIs.
- remove leftovers of per arch implementations
After this series every single architecture makes use of the unified
TLB flushing APIs"
* 'core-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
mm/resource: Use resource_overlaps() to simplify region_intersects()
ia64/tlb: Eradicate tlb_migrate_finish() callback
asm-generic/tlb: Remove tlb_table_flush()
asm-generic/tlb: Remove tlb_flush_mmu_free()
asm-generic/tlb: Remove CONFIG_HAVE_GENERIC_MMU_GATHER
asm-generic/tlb: Remove arch_tlb*_mmu()
s390/tlb: Convert to generic mmu_gather
asm-generic/tlb: Introduce CONFIG_HAVE_MMU_GATHER_NO_GATHER=y
arch/tlb: Clean up simple architectures
um/tlb: Convert to generic mmu_gather
sh/tlb: Convert SH to generic mmu_gather
ia64/tlb: Convert to generic mmu_gather
arm/tlb: Convert to generic mmu_gather
asm-generic/tlb, arch: Invert CONFIG_HAVE_RCU_TABLE_INVALIDATE
asm-generic/tlb, ia64: Conditionally provide tlb_migrate_finish()
asm-generic/tlb: Provide generic tlb_flush() based on flush_tlb_mm()
asm-generic/tlb, arch: Provide generic tlb_flush() based on flush_tlb_range()
asm-generic/tlb, arch: Provide generic VIPT cache flush
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
asm-generic/tlb: Provide a comment
The module support for the thermal subsystem makes little sense:
- some subsystems relying on it are not modules, thus forcing the
framework to be compiled in
- it is compiled in for almost every configs, the remaining ones
are a few platforms where I don't see why we can not switch the thermal
to 'y'. The drivers can stay in tristate.
- platforms need the thermal to be ready as soon as possible at boot time
in order to mitigate
Usually the subsystems framework are compiled-in and the plugs are as
module.
Remove the module option. The removal of the module related dead code will
come after this patch gets in or is acked.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Guenter Roeck <groeck@chromium.org>
For mini2440:
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS part
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Since memblock-patchset was introduced the reserved-memory nodes are
supported being declared in dt-files. So these nodes are actually parsed
during the arch setup procedure when the early_init_fdt_scan_reserved_mem()
method is called. But due to the arch-specific boot mem_map container
utilization we need to manually call the fdt_init_reserved_mem() method
after all the available and reserved memory has been moved to memblock.
The first function call performed before bootmem_init() by the
early_init_fdt_scan_reserved_mem() routine fails due to the lack of any
memblock memory regions to allocate from at that stage.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Serge Semin <Sergey.Semin@t-platforms.ru>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
There are situations when memory regions coming from dts may be
too big for the platform physical address space. This especially
concerns XPA-capable systems. Bootloader may determine more than 4GB
memory available and pass it to the kernel over dts memory node, while
kernel is built without XPA/64BIT support. In this case the region
may either simply be truncated by add_memory_region() method
or by u64->phys_addr_t type casting. But in worst case the method
can even drop the memory region if it exceeds PHYS_ADDR_MAX size.
So lets make sure the retrieved from dts memory regions are valid,
and if some of them aren't, just manually truncate them with a warning
printed out.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Serge Semin <Sergey.Semin@t-platforms.ru>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
- Support having the bad block markers in either the first, second or
last page of a block. The combination of all three location is now
possible.
- Constification of NAND_OP_PARSER(_PATTERN) elements.
- Generic NAND DT bindings changed to yaml format (can be used to
check the proposed bindings. First platform to be fully supported:
sunxi.
- Stopped using several legacy hooks.
- Preparation to use the generic NAND layer with the addition of
several helpers and the removal of the struct nand_chip from generic
functions.
- Kconfig cleanup to prepare the introduction of external ECC engines
support.
- Fallthrough comments.
- Introduction of the SPI-mem dirmap API for SPI-NAND devices.
Raw NAND controller drivers changes:
- nandsim:
* Switch to ->exec-op().
- meson:
* Misc cleanups and fixes.
* New OOB layout.
- Sunxi:
* A23/A33 NAND DMA support.
- Ingenic:
* Full reorganization and cleanup.
* Clear separation between NAND controller and ECC engine.
* Support JZ4740 an JZ4725B.
- Denali:
* Clear controller/chip separation.
* ->exec_op() migration.
* Various cleanups.
- fsl_elbc:
* Enable software ECC support.
- Atmel:
* Sam9x60 support.
- GPMI:
* Introduce the GPMI_IS_MXS() macro.
- Various trivial/spelling/coding style fixes.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEE9HuaYnbmDhq/XIDIJWrqGEe9VoQFAly4rnMACgkQJWrqGEe9
VoSBzAgAmSx1rDxiX2033dhVvufCcqMQnkY1fguKo69lYkhgGI1EYwvq2NbGLCf4
rb7n+D1peYhzH/9GKz4/LPQPccoVIQnx9+Z+JMZRzyQ+Z73cuomX/DtQO0AsRZgE
bx88vsbQFtjWv0mVluIEs51e3B/4ya6KPotxUDcaAyp2s/VKPaEI1rpiteUx8lZC
QsPsYQG/ryYiBW0cmopRL6c7ZdXyWi5A0kEdypGyO8ybTxo8xBquFqhbraDlM4U2
2H3Ii3iV9HoVTyjG2nGIA094Ak0U029oWW+P9xAPf1L4z6WIVXD68sazpZng+t8s
HgWP7BYDpcdRj+/Dm1b+uoaJH1fvOQ==
=B7w9
-----END PGP SIGNATURE-----
Merge tag 'nand/for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next
NAND core changes:
- Support having the bad block markers in either the first, second or
last page of a block. The combination of all three location is now
possible.
- Constification of NAND_OP_PARSER(_PATTERN) elements.
- Generic NAND DT bindings changed to yaml format (can be used to
check the proposed bindings. First platform to be fully supported:
sunxi.
- Stopped using several legacy hooks.
- Preparation to use the generic NAND layer with the addition of
several helpers and the removal of the struct nand_chip from generic
functions.
- Kconfig cleanup to prepare the introduction of external ECC engines
support.
- Fallthrough comments.
- Introduction of the SPI-mem dirmap API for SPI-NAND devices.
Raw NAND controller drivers changes:
- nandsim:
* Switch to ->exec-op().
- meson:
* Misc cleanups and fixes.
* New OOB layout.
- Sunxi:
* A23/A33 NAND DMA support.
- Ingenic:
* Full reorganization and cleanup.
* Clear separation between NAND controller and ECC engine.
* Support JZ4740 an JZ4725B.
- Denali:
* Clear controller/chip separation.
* ->exec_op() migration.
* Various cleanups.
- fsl_elbc:
* Enable software ECC support.
- Atmel:
* Sam9x60 support.
- GPMI:
* Introduce the GPMI_IS_MXS() macro.
- Various trivial/spelling/coding style fixes.
memblock subsystem provides a method to optionally test the passed
memory region in case if it was requested via special kernel boot
argument. Lets add the function at the bottom of the arch_mem_init()
method. Testing at this point in the boot sequence should be safe since all
critical areas are now reserved and a minimum of allocations have been
done.
Reviewed-by: Matt Redfearn <matt.redfearn@mips.com>
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Serge Semin <Sergey.Semin@t-platforms.ru>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
It is useful to have the whole memblock memory space printed to console
when basic memlock initializations are done. It can be performed by
ready-to-use method memblock_dump_all(), which prints the available
and reserved memory spaces if memblock=debug kernel parameter is
specified. Lets call it at the very end of arch_mem_init() function,
when all memblock memory and reserved regions are defined, but before
any serious allocation is performed.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Serge Semin <Sergey.Semin@t-platforms.ru>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
It might be necessary to prevent the virtual mapping creation for a
requested memory region. For instance there is a "no-map" property
indicating exactly this feature. In this case we need to not only
reserve the specified region by pretending it doesn't exist in the
memory space, but completely remove the range from system just by
removing it from memblock. The same way it's done in default
early_init_dt_reserve_memory_arch() method.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Originally before legacy bootmem was removed, the memory for the range was
correctly reserved by reserve_bootmem_region(). But since memblock has been
selected for early memory allocation the function can be utilized only
after paging is fully initialized (as it is done by memblock_free_all()
function). So calling it from arch_mem_init() method is prone to errors,
and at this stage we need to reserve the memory in the memblock allocator.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Really the loop is pointless, since it walks over memblock-reserved
memory regions and mark them as reserved in memblock. Before
bootmem was removed from the kernel, this loop had been
used to map the memory reserved by CMA into the legacy bootmem
allocator. But now the early memory allocator is memblock,
which is used by CMA for reservation, so we don't need any mapping
anymore.
Reviewed-by: Matt Redfearn <matt.redfearn@mips.com>
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The reserved_end variable had been used by the bootmem_init() code
to find a lowest limit of memory available for memmap blob. The original
code just tried to find a free memory space higher than kernel was placed.
This limitation seems justified for the memmap ragion search process, but
I can't see any obvious reason to reserve the unused space below kernel
seeing some platforms place it much higher than standard 1MB. Moreover
the RELOCATION config enables it to be loaded at any memory address.
So lets reserve the memory occupied by the kernel only, leaving the region
below being free for allocations. After doing this we can now discard the
code freeing a space between kernel _text and VMLINUX_LOAD_ADDRESS symbols
since it's going to be free anyway (unless marked as reserved by
platforms).
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Clean up our configuration of the EBase register by making
configure_exception_vector() write to it unconditionally on systems
implementing MIPSr2 or higher, and removing the duplicate code in
per_cpu_trap_init(). The latter would have duplicated work on systems
with vectored interrupts, and didn't set BEV for safety like the
configure_exception_vector() version of the code does.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Cc: linux-mips@vger.kernel.org
Rather than performing cache flushing for a fixed 0x400 bytes, use the
actual size of the vector in order to ensure we cover all emitted code
on systems that make use of vectored interrupts.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Cc: linux-mips@vger.kernel.org
Currently we allocate the exception vector on systems which use a
vectored interrupt mode, but otherwise attempt to reuse whatever
exception vector the bootloader uses.
This can be problematic for a number of reasons:
1) The memory isn't properly marked reserved in the memblock
allocator. We've relied on the fact that EBase is generally in the
memory below the kernel image which we don't free, but this is
about to change.
2) Recent versions of U-Boot place their exception vector high in
kseg0, in memory which isn't protected by being lower than the
kernel anyway & can end up being clobbered.
3) We are unnecessarily reliant upon there being memory at the address
EBase points to upon entry to the kernel. This is often the case,
but if the bootloader doesn't configure EBase & leaves it with its
default value then we rely upon there being memory at physical
address 0 for no good reason.
Improve this situation by allocating the exception vector in all cases
when running on MIPSr2 or higher, and reserving the memory for MIPSr1 or
lower. This ensures we don't clobber the exception vector in any
configuration, and for MIPSr2 & higher removes the need for memory at
physical address 0.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Cc: linux-mips@vger.kernel.org
Allocate the exception vector using memblock_phys_alloc() which gives us
a physical address, rather than the previous convoluted setup which
obtained a virtual address using memblock_alloc(), converted it to a
physical address & then back to a virtual address.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Cc: linux-mips@vger.kernel.org
This flag was historically used to indicate that a clk is a "basic" type
of clk like a mux, divider, gate, etc. This never turned out to be very
useful though because it was hard to cleanly split "basic" clks from
other clks in a system. This one flag was a way for type introspection
and it just didn't scale. If anything, it was used by the TI clk driver
to indicate that a clk_hw wasn't contained in the SoC specific clk
structure. We can get rid of this define now that TI is finding those
clks a different way.
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: <linux-mips@vger.kernel.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: <linux-pwm@vger.kernel.org>
Cc: <linux-amlogic@lists.infradead.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Alexei Starovoitov says:
====================
pull-request: bpf 2019-04-25
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) the bpf verifier fix to properly mark registers in all stack frames, from Paul.
2) preempt_enable_no_resched->preempt_enable fix, from Peter.
3) other misc fixes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix sparse warning:
arch/mips/net/ebpf_jit.c:196:5: warning:
symbol 'ebpf_to_mips_reg' was not declared. Should it be static?
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Before bootmem was completely removed from the kernel, the last loop
in the bootmem_init() had been used to reserve the correspondingly
marked regions, initialize sparsemem sections and to free the low memory
pages, which then would be used for early memory allocations. After the
bootmem removing patchset had been merged the loop was left to do the first
two things only. But it didn't do them quite well.
First of all it leaves the BOOT_MEM_INIT_RAM memory types unreserved,
which is definitely bug (although it isn't noticeable due to being used
by the kernel region only, which is fully marked as reserved). Secondly
the reservation is supposed to be done for any memory including the
high one. (I couldn't figure out why the highmem was ignored in the first
place, since platforms and dts' may declare any memory region for
reservation) Thirdly the reserved_end variable had been used here to not
accidentally free memory occupied by kernel. Since we already reserved the
corresponding region higher in this method there is no need in using the
variable here anymore. Fourthly the sparsemem should be aware of all the
memory types in the system including the ROM_DATA even if it is going to
be reserved for the whole system uptime. Finally after all these notes are
fixed the loop of memory reservation can be freely merged into the memory
installation loop as it's done in this patch.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
There is a pointless code left in the bootmem_init() method since
the bootmem allocator removal. First part resides the PFN ranges
calculation loop. The conditional expressions and continue operator
are useless there, since nothing is done after them. Second part is
in RAM ranges installation loop. We can simplify the conditions cascade
a bit without much of the logic redefinition, so to reduce the code
length. In particular the end boundary value can be verified after
the possible reduction to be below max_low_pfn.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Current MIPS platform code makes sure the kernel text, data and init
sections are added to the boot memory map pool right after the
arch-specific memory setup method has been executed. But for some reason
the MIPS platform code skipped the kernel .bss section, which definitely
should be in the boot mem pool as well in any case. Lets fix this just be
adding the space between __bss_start and __bss_stop.
Reviewed-by: Matt Redfearn <matt.redfearn@mips.com>
Signed-off-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Towards the goal of removing cc-ldoption, it seems that --hash-style=
was added to binutils 2.17.50.0.2 in 2006. The minimal required version
of binutils for the kernel according to
Documentation/process/changes.rst is 2.20.
--build-id was added in 2.18 according to binutils-gdb/ld/NEWS.
Link: https://gcc.gnu.org/ml/gcc/2007-01/msg01141.html
Cc: clang-built-linux@googlegroups.com
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: ralf@linux-mips.org
Cc: jhogan@kernel.org
Cc: Matt Redfearn <matt.redfearn@mips.com>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Hassan Naveed <hnaveed@wavecomp.com>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
This comes a bit late, but should be in 5.1 anyway: we want the newly
added system calls to be synchronized across all architectures in
the release.
I hope that in the future, any newly added system calls can be added
to all architectures at the same time, and tested there while they
are in linux-next, avoiding dependencies between the architecture
maintainer trees and the tree that contains the new system call.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=Y7Kd
-----END PGP SIGNATURE-----
Merge tag 'syscalls-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull syscall numbering updates from Arnd Bergmann:
"arch: add pidfd and io_uring syscalls everywhere
This comes a bit late, but should be in 5.1 anyway: we want the newly
added system calls to be synchronized across all architectures in the
release.
I hope that in the future, any newly added system calls can be added
to all architectures at the same time, and tested there while they are
in linux-next, avoiding dependencies between the architecture
maintainer trees and the tree that contains the new system call"
* tag 'syscalls-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
arch: add pidfd and io_uring syscalls everywhere
A few architectures use <asm/segment.h> internally, but nothing in
common code does. Remove all the empty or almost empty versions of it,
including the asm-generic one.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Fix indirect syscall tracing & seccomp filtering for big endian MIPS64
kernels, which previously loaded the syscall number incorrectly &
would always use zero.
- Fix performance counter IRQ setup for Atheros/ath79 SoCs, allowing
perf to function on those systems.
And not really a fix, but a useful addition:
- Add a Broadcom mailing list to the MAINTAINERS entry for BMIPS systems
to allow relevant engineers to track patch submissions.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXL4GhRUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN15CQEA6ZtDNid9bRuD3lEOqiJTHrgUIvjA
sxVB5MwckzQ7Ir4A+wS6P4oIjlMdJxO0MZ23QlNNP+XibRt/jAz8ItLoNpcJ
=Cl5u
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.1_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A couple more MIPS fixes:
- Fix indirect syscall tracing & seccomp filtering for big endian
MIPS64 kernels, which previously loaded the syscall number
incorrectly & would always use zero.
- Fix performance counter IRQ setup for Atheros/ath79 SoCs, allowing
perf to function on those systems.
And not really a fix, but a useful addition:
- Add a Broadcom mailing list to the MAINTAINERS entry for BMIPS
systems to allow relevant engineers to track patch submissions"
* tag 'mips_fixes_5.1_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: perf: ath79: Fix perfcount IRQ assignment
MIPS: scall64-o32: Fix indirect syscall number load
MAINTAINERS: BMIPS: Add internal Broadcom mailing list
-----BEGIN PGP SIGNATURE-----
iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAly8rGYeHHRvcnZhbGRz
QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGmZMH/1IRB0E1Qmzz8yzw
wj79UuRGYPqxDDSWW+wNc8sU4Ic7iYirn9APHAztCdQqsjmzU/OVLfSa3JhdBe5w
THo7pbGKBqEDcWnKfNk/21jXFNLZ1vr9BoQv2DGU2MMhHAyo/NZbalo2YVtpQPmM
OCRth5n+LzvH7rGrX7RYgWu24G9l3NMfgtaDAXBNXesCGFAjVRrdkU5CBAaabvtU
4GWh/nnutndOOLdByL3x+VZ3H3fIBnbNjcIGCglvvqzk7h3hrfGEl4UCULldTxcM
IFsfMUhSw1ENy7F6DHGbKIG90cdCJcrQ8J/ziEzjj/KLGALluutfFhVvr6YCM2J6
2RgU8CY=
=CfY1
-----END PGP SIGNATURE-----
Merge tag 'v5.1-rc6' into for-5.2/block
Pull in v5.1-rc6 to resolve two conflicts. One is in BFQ, in just a
comment, and is trivial. The other one is a conflict due to a later fix
in the bio multi-page work, and needs a bit more care.
* tag 'v5.1-rc6': (770 commits)
Linux 5.1-rc6
block: make sure that bvec length can't be overflow
block: kill all_q_node in request_queue
x86/cpu/intel: Lower the "ENERGY_PERF_BIAS: Set to normal" message's log priority
coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
mm/kmemleak.c: fix unused-function warning
init: initialize jump labels before command line option parsing
kernel/watchdog_hld.c: hard lockup message should end with a newline
kcov: improve CONFIG_ARCH_HAS_KCOV help text
mm: fix inactive list balancing between NUMA nodes and cgroups
mm/hotplug: treat CMA pages as unmovable
proc: fixup proc-pid-vm test
proc: fix map_files test on F29
mm/vmstat.c: fix /proc/vmstat format for CONFIG_DEBUG_TLBFLUSH=y CONFIG_SMP=n
mm/memory_hotplug: do not unlock after failing to take the device_hotplug_lock
mm: swapoff: shmem_unuse() stop eviction without igrab()
mm: swapoff: take notice of completion sooner
mm: swapoff: remove too limiting SWAP_UNUSE_MAX_TRIES
mm: swapoff: shmem_find_swap_entries() filter out other types
slab: store tagged freelist for off-slab slabmgmt
...
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The 'timeval' and 'timespec' data structures used for socket timestamps
are going to be redefined in user space based on 64-bit time_t in future
versions of the C library to deal with the y2038 overflow problem,
which breaks the ABI definition.
Unlike many modern ioctl commands, SIOCGSTAMP and SIOCGSTAMPNS do not
use the _IOR() macro to encode the size of the transferred data, so it
remains ambiguous whether the application uses the old or new layout.
The best workaround I could find is rather ugly: we redefine the command
code based on the size of the respective data structure with a ternary
operator. This lets it get evaluated as late as possible, hopefully after
that structure is visible to the caller. We cannot use an #ifdef here,
because inux/sockios.h might have been included before any libc header
that could determine the size of time_t.
The ioctl implementation now interprets the new command codes as always
referring to the 64-bit structure on all architectures, while the old
architecture specific command code still refers to the old architecture
specific layout. The new command number is only used when they are
actually different.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Make the anon_inodes facility unconditional so that it can be used by core
VFS code and pidfd code.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[christian@brauner.io: adapt commit message to mention pidfds]
Signed-off-by: Christian Brauner <christian@brauner.io>
MTD_NAND is large and encloses much more than what the symbol is
actually used for: raw NAND. Clarify the symbol by naming it
MTD_RAW_NAND instead.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
The software Hamming ECC correction implementation is referred as
MTD_NAND_ECC which is too generic. Rename it
MTD_NAND_ECC_SW_HAMMING. Also rename MTD_NAND_ECC_SMC which is an
SMC quirk in the Hamming implementation as
MTD_NAND_ECC_SW_HAMMING_SMC.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
There is no point in having two distinct entries, merge them and
rename the symbol for more clarity: MTD_NAND_ECC_SW_BCH
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Currently it's not possible to use perf on ath79 due to genirq flags
mismatch happening on static virtual IRQ 13 which is used for
performance counters hardware IRQ 5.
On TP-Link Archer C7v5:
CPU0
2: 0 MIPS 2 ath9k
4: 318 MIPS 4 19000000.eth
7: 55034 MIPS 7 timer
8: 1236 MISC 3 ttyS0
12: 0 INTC 1 ehci_hcd:usb1
13: 0 gpio-ath79 2 keys
14: 0 gpio-ath79 5 keys
15: 31 AR724X PCI 1 ath10k_pci
$ perf top
genirq: Flags mismatch irq 13. 00014c83 (mips_perf_pmu) vs. 00002003 (keys)
On TP-Link Archer C7v4:
CPU0
4: 0 MIPS 4 19000000.eth
5: 7135 MIPS 5 1a000000.eth
7: 98379 MIPS 7 timer
8: 30 MISC 3 ttyS0
12: 90028 INTC 0 ath9k
13: 5520 INTC 1 ehci_hcd:usb1
14: 4623 INTC 2 ehci_hcd:usb2
15: 32844 AR724X PCI 1 ath10k_pci
16: 0 gpio-ath79 16 keys
23: 0 gpio-ath79 23 keys
$ perf top
genirq: Flags mismatch irq 13. 00014c80 (mips_perf_pmu) vs. 00000080 (ehci_hcd:usb1)
This problem is happening, because currently statically assigned virtual
IRQ 13 for performance counters is not claimed during the initialization
of MIPS PMU during the bootup, so the IRQ subsystem doesn't know, that
this interrupt isn't available for further use.
So this patch fixes the issue by simply booking hardware IRQ 5 for MIPS PMU.
Tested-by: Kevin 'ldir' Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Acked-by: John Crispin <john@phrozen.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Commit 4c21b8fd8f (MIPS: seccomp: Handle indirect system calls (o32))
added indirect syscall detection for O32 processes running on MIPS64,
but it did not work correctly for big endian kernel/processes. The
reason is that the syscall number is loaded from ARG1 using the lw
instruction while this is a 64-bit value, so zero is loaded instead of
the syscall number.
Fix the code by using the ld instruction instead. When running a 32-bit
processes on a 64 bit CPU, the values are properly sign-extended, so it
ensures the value passed to syscall_trace_enter is correct.
Recent systemd versions with seccomp enabled whitelist the getpid
syscall for their internal processes (e.g. systemd-journald), but call
it through syscall(SYS_getpid). This fix therefore allows O32 big endian
systems with a 64-bit kernel to run recent systemd versions.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Cc: <stable@vger.kernel.org> # v3.15+
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Add the io_uring and pidfd_send_signal system calls to all architectures.
These system calls are designed to handle both native and compat tasks,
so all entries are the same across architectures, only arm-compat and
the generic tale still use an old format.
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> (s390)
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Provide struct pt_regs * from get_irq_regs() to kgdb_nmicallback()
when handling an IPI triggered by kgdb_roundup_cpus(), matching the
behavior of other architectures & resolving kgdb issues for SMP
systems.
- Defer a pointer dereference until after a NULL check in the
irq_shutdown callback for SGI IP27 HUB interrupts.
- A defconfig update for the MSCC Ocelot to enable some necessary
drivers.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXK0n2BUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN3rCAD/QLvPpE1YhmJ4Gd6MOEM2HHC15HHR
U0ROHAEO3+ZwZf4A/3aBKZMtEKrLJnxG+MEqhuDMtIu//J6kGSpOpMZ5y7YJ
=zRUT
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.1_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A few minor MIPS fixes:
- Provide struct pt_regs * from get_irq_regs() to kgdb_nmicallback()
when handling an IPI triggered by kgdb_roundup_cpus(), matching the
behavior of other architectures & resolving kgdb issues for SMP
systems.
- Defer a pointer dereference until after a NULL check in the
irq_shutdown callback for SGI IP27 HUB interrupts.
- A defconfig update for the MSCC Ocelot to enable some necessary
drivers"
* tag 'mips_fixes_5.1_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: generic: Add switchdev, pinctrl and fit to ocelot_defconfig
MIPS: SGI-IP27: Fix use of unchecked pointer in shutdown_bridge_irq
MIPS: KGDB: fix kgdb support for SMP platforms.
Enable CONFIG_JUMP_LABEL for generic configs in order to better optimize
at runtime and get better test coverage for our jump label support.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
MIPSr6 introduced compact branches which have no delay slots. Make use
of them for jump labels in order to avoid the need for a nop to fill the
branch or jump delay slot, saving 4 bytes of code for each static branch.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Both arch_static_branch() & arch_static_branch_jump() emit a control
transfer instruction (ie. branch or jump) without disabling assembler
re-ordering. As such the assembler will automatically fill their delay
slots.
Both functions follow their branch or jump with an explicit nop that at
first appears to be there to fill the delay slot, but given that the
assembler will do that the explicit nops serve no purpose & we end up
with our branch or jump followed by 2 nops. Remove the redundant nops.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
- An interrupt masking fix for Loongson-based Lemote 2F systems (fixing
a regression from v3.19).
- A relocation fix for configurations in which the devicetree is stored
in an ELF section (fixing a regression from v4.7).
- Fix jump labels for MIPSr6 kernels where they previously could
inadvertently place a control transfer instruction in a forbidden slot
& take unexpected exceptions (fixing MIPSr6 support added in v4.0).
- Extend an existing USB power workaround for the Netgear WNDR3400 to v2
boards in addition to the v3 ones that already used it.
- Remove the custom MIPS32 definition of __kernel_fsid_t to make it
consistent with MIPS64 & every other architecture, in particular
resolving issues for code which tries to print the val field whose
type previously differed (though had identical memory layout).
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXJARJxUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN0qJAEAg6i9PnkuHZFXjlaUsvBWyVJRrpgR
Y9vLYXTGJZdb1BwA/i17C6xD7i41Ef2/TtOuPc5fJ6IfEbt74nKJEeBxNTUO
=V6Ds
-----END PGP SIGNATURE-----
gpgsig -----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXK0o6hUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN1r6QEAyfJVKxisnxwDGmP0QUoRkISv7Mi/
xhdiPmC5AaR8qjoBAPbGex4JdLRVVoti/lxYk2mJ38JEM/zxL3YTxcj/n7IF
=CJp2
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.1_1' into mips-next
A small batch of MIPS fixes for 5.1:
- An interrupt masking fix for Loongson-based Lemote 2F systems (fixing
a regression from v3.19).
- A relocation fix for configurations in which the devicetree is stored
in an ELF section (fixing a regression from v4.7).
- Fix jump labels for MIPSr6 kernels where they previously could
inadvertently place a control transfer instruction in a forbidden slot
& take unexpected exceptions (fixing MIPSr6 support added in v4.0).
- Extend an existing USB power workaround for the Netgear WNDR3400 to v2
boards in addition to the v3 ones that already used it.
- Remove the custom MIPS32 definition of __kernel_fsid_t to make it
consistent with MIPS64 & every other architecture, in particular
resolving issues for code which tries to print the val field whose
type previously differed (though had identical memory layout).
Merged into mips-next to gain the MIPSr6 jump label fix before enabling
jump labels by default for generic kernel builds.
Signed-off-by: Paul Burton <paul.burton@mips.com>
The mmiowb() macro is horribly difficult to use and drivers will continue
to work most of the time if they omit a call when it is required.
Rather than rely on driver authors getting this right, push mmiowb() into
arch_spin_unlock() for mips. If this is deemed to be a performance issue,
a subsequent optimisation could make use of ARCH_HAS_MMIOWB to elide
the barrier in cases where no I/O writes were performed inside the
critical section.
Acked-by: Paul Burton <paul.burton@mips.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Hook up asm-generic/mmiowb.h to Kbuild for all architectures so that we
can subsequently include asm/mmiowb.h from core code.
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit
architectures. These types are required to support block device and/or
file sizes larger than 2 TiB, and have generally defaulted to on for
a long time. Enabling the option only increases the i386 tinyconfig
size by 145 bytes, and many data structures already always use
64-bit values for their in-core and on-disk data structures anyway,
so there should not be a large change in dynamic memory usage either.
Dropping this option removes a somewhat weird non-default config that
has cause various bugs or compiler warnings when actually used.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
For a long time the mt7621 uses a fixed cpu clock which causes a problem
if the cpu frequency is not 880MHz.
This patch fixes the cpu clock calculation and adds the cpu/bus clkdev
which will be used in dts.
Ported from OpenWrt:
c7ca224299 ramips: fix cpu clock of mt7621 and add dt clk devices
Signed-off-by: Weijie Gao <hackpascal@gmail.com>
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: John Crispin <john@phrozen.org>
Cc: linux-kernel@vger.kernel.org
Some of the configuration were not selected by default anymore, therefore
enable them again. Also remove some configs which are used for MSCC Ocelot.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: <alexandre.belloni@bootlin.com>
Cc: <UNGLinuxDriver@microchip.com>
Cc: <ralf@linux-mips.org>
Cc: <jhogan@kernel.org>
Cc: <linux-mips@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Currently, we have two different implementation of rwsem:
1) CONFIG_RWSEM_GENERIC_SPINLOCK (rwsem-spinlock.c)
2) CONFIG_RWSEM_XCHGADD_ALGORITHM (rwsem-xadd.c)
As we are going to use a single generic implementation for rwsem-xadd.c
and no architecture-specific code will be needed, there is no point
in keeping two different implementations of rwsem. In most cases, the
performance of rwsem-spinlock.c will be worse. It also doesn't get all
the performance tuning and optimizations that had been implemented in
rwsem-xadd.c over the years.
For simplication, we are going to remove rwsem-spinlock.c and make all
architectures use a single implementation of rwsem - rwsem-xadd.c.
All references to RWSEM_GENERIC_SPINLOCK and RWSEM_XCHGADD_ALGORITHM
in the code are removed.
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-m68k@lists.linux-m68k.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-um@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: nios2-dev@lists.rocketboards.org
Cc: openrisc@lists.librecores.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Link: https://lkml.kernel.org/r/20190322143008.21313-3-longman@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
For the architectures that do not implement their own tlb_flush() but
do already use the generic mmu_gather, there are two options:
1) the platform has an efficient flush_tlb_range() and
asm-generic/tlb.h doesn't need any overrides at all.
2) the platform lacks an efficient flush_tlb_range() and
we select MMU_GATHER_NO_RANGE to minimize full invalidates.
Convert all 'simple' architectures to one of these two forms.
alpha: has no range invalidate -> 2
arc: already used flush_tlb_range() -> 1
c6x: has no range invalidate -> 2
hexagon: has an efficient flush_tlb_range() -> 1
(flush_tlb_mm() is in fact a full range invalidate,
so no need to shoot down everything)
m68k: has inefficient flush_tlb_range() -> 2
microblaze: has no flush_tlb_range() -> 2
mips: has efficient flush_tlb_range() -> 1
(even though it currently seems to use flush_tlb_mm())
nds32: already uses flush_tlb_range() -> 1
nios2: has inefficient flush_tlb_range() -> 2
(no limit on range iteration)
openrisc: has inefficient flush_tlb_range() -> 2
(no limit on range iteration)
parisc: already uses flush_tlb_range() -> 1
sparc32: already uses flush_tlb_range() -> 1
unicore32: has inefficient flush_tlb_range() -> 2
(no limit on range iteration)
xtensa: has efficient flush_tlb_range() -> 1
Note this also fixes a bug in the existing code for a number
platforms. Those platforms that did:
tlb_end_vma() -> if (!full_mm) flush_tlb_*()
tlb_flush -> if (full_mm) flush_tlb_mm()
missed the case of shift_arg_pages(), which doesn't have @fullmm set,
nor calls into tlb_*vma(), but still frees page-tables and thus needs
an invalidate. The new code handles this by detecting a non-empty
range, and either issuing the matching range invalidate or a full
invalidate, depending on the capabilities.
No change in behavior intended.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The one obvious thing SH and ARM want is a sensible default for
tlb_start_vma(). (also: https://lkml.org/lkml/2004/1/15/6 )
Avoid all VIPT architectures providing their own tlb_start_vma()
implementation and rely on architectures to provide a no-op
flush_cache_range() when it is not relevant.
This patch makes tlb_start_vma() default to flush_cache_range(), which
should be right and sufficient. The only exceptions that I found where
(oddly):
- m68k-mmu
- sparc64
- unicore
Those architectures appear to have flush_cache_range(), but their
current tlb_start_vma() does not call it.
No change in behavior intended.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Miller <davem@davemloft.net>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
smatch complaint:
arch/mips/sgi-ip27/ip27-irq.c:123 shutdown_bridge_irq()
warn: variable dereferenced before check 'hd' (see line 121)
Fix it by removing local variable and use hd->pin directly.
Fixes: 69a07a41d9 ("MIPS: SGI-IP27: rework HUB interrupts")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
KGDB_call_nmi_hook is called by other cpu through smp call.
MIPS smp call is processed in ipi irq handler and regs is saved in
handle_int.
So kgdb_call_nmi_hook get regs by get_irq_regs and regs will be passed
to kgdb_cpu_enter.
Signed-off-by: Chong Qiao <qiaochong@loongson.cn>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: QiaoChong <qiaochong@loongson.cn>
Emulation of the tlbwr instruction, which writes a TLB entry to a random
index in the TLB, currently uses get_random_bytes() to generate a 4 byte
random number which we then mask to form the index. This is overkill in
a couple of ways:
- We don't need 4 bytes here since we mask the value to form a 6 bit
number anyway, so we waste /dev/random entropy generating 3 random
bytes that are unused.
- We don't need crypto-grade randomness here - the architecture spec
allows implementations to use any algorithm & merely encourages that
some pseudo-randomness be used rather than a simple counter. The
fast prandom_u32() function fits that criteria well.
So rather than using get_random_bytes() & consuming /dev/random entropy,
switch to using the faster prandom_u32_max() which provides what we need
here whilst also performing the masking/modulo for us.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reported-by: George Spelvin <lkml@sdf.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Currently MIPS32 supports a JIT for classic BPF only, not extended BPF.
This patch adds JIT support for extended BPF on MIPS32, so code is
actually JIT'ed instead of being only interpreted. Instructions with
64-bit operands are not supported at this point.
We can delete classic BPF because the kernel will translate classic BPF
programs into extended BPF and JIT them, eliminating the need for
classic BPF.
Signed-off-by: Hassan Naveed <hnaveed@wavecomp.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: kafai@fb.com
Cc: songliubraving@fb.com
Cc: yhs@fb.com
Cc: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: open list:MIPS <linux-mips@linux-mips.org>
Cc: open list <linux-kernel@vger.kernel.org>
Currently eBPF support is available on MIPS64R2 only. Use MIPS64R6
variants of instructions like multiply, divide, movn, movz so eBPF
can run on the newer ISA. Also, we only need to check ISA revision
before JIT'ing code, because we know the CPU is running a 64-bit
kernel because eBPF JIT is only included in kernels with CONFIG_64BIT=y
due to Kconfig dependencies.
Signed-off-by: Hassan Naveed <hnaveed@wavecomp.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: kafai@fb.com
Cc: songliubraving@fb.com
Cc: yhs@fb.com
Cc: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: open list:MIPS <linux-mips@linux-mips.org>
Cc: open list <linux-kernel@vger.kernel.org>
Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.
Note that commit a18815abcd ("Use preempt_schedule_irq.") initially
removed the existing loop, but missed the final branch to restore_all.
Commit cdaed73afb ("Fix preemption bug.") missed that and reintroduced
the loop.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-kernel@vger.kernel.org
- An interrupt masking fix for Loongson-based Lemote 2F systems (fixing
a regression from v3.19).
- A relocation fix for configurations in which the devicetree is stored
in an ELF section (fixing a regression from v4.7).
- Fix jump labels for MIPSr6 kernels where they previously could
inadvertently place a control transfer instruction in a forbidden slot
& take unexpected exceptions (fixing MIPSr6 support added in v4.0).
- Extend an existing USB power workaround for the Netgear WNDR3400 to v2
boards in addition to the v3 ones that already used it.
- Remove the custom MIPS32 definition of __kernel_fsid_t to make it
consistent with MIPS64 & every other architecture, in particular
resolving issues for code which tries to print the val field whose
type previously differed (though had identical memory layout).
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXJARJxUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN0qJAEAg6i9PnkuHZFXjlaUsvBWyVJRrpgR
Y9vLYXTGJZdb1BwA/i17C6xD7i41Ef2/TtOuPc5fJ6IfEbt74nKJEeBxNTUO
=V6Ds
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.1_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A small batch of MIPS fixes for 5.1:
- An interrupt masking fix for Loongson-based Lemote 2F systems
(fixing a regression from v3.19)
- A relocation fix for configurations in which the devicetree is
stored in an ELF section (fixing a regression from v4.7)
- Fix jump labels for MIPSr6 kernels where they previously could
inadvertently place a control transfer instruction in a forbidden
slot & take unexpected exceptions (fixing MIPSr6 support added in
v4.0)
- Extend an existing USB power workaround for the Netgear WNDR3400 to
v2 boards in addition to the v3 ones that already used it
- Remove the custom MIPS32 definition of __kernel_fsid_t to make it
consistent with MIPS64 & every other architecture, in particular
resolving issues for code which tries to print the val field whose
type previously differed (though had identical memory layout)"
* tag 'mips_fixes_5.1_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: Remove custom MIPS32 __kernel_fsid_t type
mips: bcm47xx: Enable USB power on Netgear WNDR3400v2
MIPS: Fix kernel crash for R6 in jump label branch function
MIPS: Ensure ELF appended dtb is relocated
mips: loongson64: lemote-2f: Add IRQF_NO_SUSPEND to "cascade" irqaction.
Currently, every arch/*/include/uapi/asm/Kbuild explicitly includes
the common Kbuild.asm file. Factor out the duplicated include directives
to scripts/Makefile.asm-generic so that no architecture would opt out
of the mandatory-y mechanism.
um is not forced to include mandatory-y since it is a very exceptional
case which does not support UAPI.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
for 32-bit guests
s390: interrupt cleanup, introduction of the Guest Information Block,
preparation for processor subfunctions in cpu models
PPC: bug fixes and improvements, especially related to machine checks
and protection keys
x86: many, many cleanups, including removing a bunch of MMU code for
unnecessary optimizations; plus AVIC fixes.
Generic: memcg accounting
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJci+7XAAoJEL/70l94x66DUMkIAKvEefhceySHYiTpfefjLjIC
16RewgHa+9CO4Oo5iXiWd90fKxtXLXmxDQOS4VGzN0rxvLGRw/fyXIxL1MDOkaAO
l8SLSNuewY4XBUgISL3PMz123r18DAGOuy9mEcYU/IMesYD2F+wy5lJ17HIGq6X2
RpoF1p3qO1jfkPTKOob6Ixd4H5beJNPKpdth7LY3PJaVhDxgouj32fxnLnATVSnN
gENQ10fnt8BCjshRYW6Z2/9bF15JCkUFR1xdBW2/xh1oj+kvPqqqk2bEN1eVQzUy
2hT/XkwtpthqjSbX8NNavWRSFnOnbMLTRKQyIXmFVsM5VoSrwtiGsCFzBgcT++I=
=XIzU
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- some cleanups
- direct physical timer assignment
- cache sanitization for 32-bit guests
s390:
- interrupt cleanup
- introduction of the Guest Information Block
- preparation for processor subfunctions in cpu models
PPC:
- bug fixes and improvements, especially related to machine checks
and protection keys
x86:
- many, many cleanups, including removing a bunch of MMU code for
unnecessary optimizations
- AVIC fixes
Generic:
- memcg accounting"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (147 commits)
kvm: vmx: fix formatting of a comment
KVM: doc: Document the life cycle of a VM and its resources
MAINTAINERS: Add KVM selftests to existing KVM entry
Revert "KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range()"
KVM: PPC: Book3S: Add count cache flush parameters to kvmppc_get_cpu_char()
KVM: PPC: Fix compilation when KVM is not enabled
KVM: Minor cleanups for kvm_main.c
KVM: s390: add debug logging for cpu model subfunctions
KVM: s390: implement subfunction processor calls
arm64: KVM: Fix architecturally invalid reset value for FPEXC32_EL2
KVM: arm/arm64: Remove unused timer variable
KVM: PPC: Book3S: Improve KVM reference counting
KVM: PPC: Book3S HV: Fix build failure without IOMMU support
Revert "KVM: Eliminate extra function calls in kvm_get_dirty_log_protect()"
x86: kvmguest: use TSC clocksource if invariant TSC is exposed
KVM: Never start grow vCPU halt_poll_ns from value below halt_poll_ns_grow_start
KVM: Expose the initial start value in grow_halt_poll_ns() as a module parameter
KVM: grow_halt_poll_ns() should never shrink vCPU halt_poll_ns
KVM: x86/mmu: Consolidate kvm_mmu_zap_all() and kvm_mmu_zap_mmio_sptes()
KVM: x86/mmu: WARN if zapping a MMIO spte results in zapping children
...
For MIPS32 kernels we have a custom definition of __kernel_fsid_t. This
differs from the asm-generic version used by all other architectures &
MIPS64 in one way - it declares the val field as an array of long,
rather than an array of int. Since int & long have identical size &
alignment when targeting MIPS32 anyway, this makes little sense.
Beyond the pointlessness this causes problems for code which prints
entries from the val array, for example the fanotify_encode_fid()
function [1]. If such code uses a format specified suited to an int then
it encounters compiler warnings when building for MIPS32, such as:
In file included from include/linux/kernel.h:14:0,
from include/linux/list.h:9,
from include/linux/preempt.h:11,
from include/linux/spinlock.h:51,
from include/linux/fdtable.h:11,
from fs/notify/fanotify/fanotify.c:3:
fs/notify/fanotify/fanotify.c: In function 'fanotify_encode_fid':
include/linux/kern_levels.h:5:18: warning: format '%x' expects argument
of type 'unsigned int', but argument 2 has type 'long int' [-Wformat=]
Remove the custom __kernel_fsid_t definition & make use of the
asm-generic version which will have an identical layout in memory
anyway, in order to remove the inconsistency with other architectures.
One possible regression this could cause if is any code is attempting to
print entries from the val array with a long-sized format specifier, in
which case it would begin seeing compiler warnings when built against
kernel headers including this change. Since such code is exceedingly
rare, and would have to be MIPS32-specific to expect a long, this seems
to be a problem that it's extremely unlikely anyone will encounter.
[1] https://lore.kernel.org/linux-mips/CAOQ4uxiEkczB7PNCXegFC-eYb9zAGaio_o=OgHAJHFd7eavBxA@mail.gmail.com/T/#mb43103277c79ef06b884359209e817db1c136140
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Jan Kara <jack@suse.cz>
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Pull networking fixes from David Miller:
"More fixes in the queue:
1) Netfilter nat can erroneously register the device notifier twice,
fix from Florian Westphal.
2) Use after free in nf_tables, from Pablo Neira Ayuso.
3) Parallel update of steering rule fix in mlx5 river, from Eli
Britstein.
4) RX processing panic in lan743x, fix from Bryan Whitehead.
5) Use before initialization of TCP_SKB_CB, fix from Christoph Paasch.
6) Fix locking in SRIOV mode of mlx4 driver, from Jack Morgenstein.
7) Fix TX stalls in lan743x due to mishandling of interrupt ACKing
modes, from Bryan Whitehead.
8) Fix infoleak in l2tp_ip6_recvmsg(), from Eric Dumazet"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
pptp: dst_release sk_dst_cache in pptp_sock_destruct
MAINTAINERS: GENET & SYSTEMPORT: Add internal Broadcom list
l2tp: fix infoleak in l2tp_ip6_recvmsg()
net/tls: Inform user space about send buffer availability
net_sched: return correct value for *notify* functions
lan743x: Fix TX Stall Issue
net/mlx4_core: Fix qp mtt size calculation
net/mlx4_core: Fix locking in SRIOV mode when switching between events and polling
net/mlx4_core: Fix reset flow when in command polling mode
mlxsw: minimal: Initialize base_mac
mlxsw: core: Prevent duplication during QSFP module initialization
net: dwmac-sun8i: fix a missing check of of_get_phy_mode
net: sh_eth: fix a missing check of of_get_phy_mode
net: 8390: fix potential NULL pointer dereferences
net: fujitsu: fix a potential NULL pointer dereference
net: qlogic: fix a potential NULL pointer dereference
isdn: hfcpci: fix potential NULL pointer dereference
Documentation: devicetree: add a new optional property for port mac address
net: rocker: fix a potential NULL pointer dereference
net: qlge: fix a potential NULL pointer dereference
...
Add check for the return value of memblock_alloc*() functions and call
panic() in case of error. The panic message repeats the one used by
panicing memblock allocators with adjustment of parameters to include
only relevant ones.
The replacement was mostly automated with semantic patches like the one
below with manual massaging of format strings.
@@
expression ptr, size, align;
@@
ptr = memblock_alloc(size, align);
+ if (!ptr)
+ panic("%s: Failed to allocate %lu bytes align=0x%lx\n", __func__, size, align);
[anders.roxell@linaro.org: use '%pa' with 'phys_addr_t' type]
Link: http://lkml.kernel.org/r/20190131161046.21886-1-anders.roxell@linaro.org
[rppt@linux.ibm.com: fix format strings for panics after memblock_alloc]
Link: http://lkml.kernel.org/r/1548950940-15145-1-git-send-email-rppt@linux.ibm.com
[rppt@linux.ibm.com: don't panic if the allocation in sparse_buffer_init fails]
Link: http://lkml.kernel.org/r/20190131074018.GD28876@rapoport-lnx
[akpm@linux-foundation.org: fix xtensa printk warning]
Link: http://lkml.kernel.org/r/1548057848-15136-20-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Reviewed-by: Guo Ren <ren_guo@c-sky.com> [c-sky]
Acked-by: Paul Burton <paul.burton@mips.com> [MIPS]
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390]
Reviewed-by: Juergen Gross <jgross@suse.com> [Xen]
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa]
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The last parameter of memblock_alloc_from() is the lower limit for the
memory allocation. When it is 0, the call is equivalent to
memblock_alloc().
Link: http://lkml.kernel.org/r/1548057848-15136-13-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS part
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Guo Ren <guoren@kernel.org>
Cc: Guo Ren <ren_guo@c-sky.com> [c-sky]
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Juergen Gross <jgross@suse.com> [Xen]
Cc: Mark Salter <msalter@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric has reported on OpenWrt's bug tracking system[1], that he's not
able to use USB devices on his WNDR3400v2 device after the boot, until
he turns on GPIO #21 manually through sysfs.
1. https://bugs.openwrt.org/index.php?do=details&task_id=2170
Cc: Rafał Miłecki <zajec5@gmail.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Reported-by: Eric Bohlman <ericbohlman@gmail.com>
Tested-by: Eric Bohlman <ericbohlman@gmail.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Insert Branch instruction instead of NOP to make sure assembler don't
patch code in forbidden slot. In jump label function, it might
be possible to patch Control Transfer Instructions(CTIs) into
forbidden slot, which will generate Reserved Instruction exception
in MIPS release 6.
Signed-off-by: Archer Yan <ayan@wavecomp.com>
Reviewed-by: Paul Burton <paul.burton@mips.com>
[paul.burton@mips.com:
- Add MIPS prefix to subject.
- Mark for stable from v4.0, which introduced r6 support, onwards.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: stable@vger.kernel.org # v4.0+
This fixes booting with the combination of CONFIG_RELOCATABLE=y
and CONFIG_MIPS_ELF_APPENDED_DTB=y.
Sections that appear after the relocation table are not relocated
on system boot (except .bss, which has special handling).
With CONFIG_MIPS_ELF_APPENDED_DTB, the dtb is part of the
vmlinux ELF, so it must be relocated together with everything else.
Fixes: 069fd76627 ("MIPS: Reserve space for relocation table")
Signed-off-by: Yasha Cherikovsky <yasha.che3@gmail.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # v4.7+
Timekeeping IRQs from CS5536 MFGPT are routed to i8259, which then
triggers the "cascade" IRQ on MIPS CPU. Without IRQF_NO_SUSPEND in
cascade_irqaction, MFGPT interrupts will be masked in suspend mode,
and the machine would be unable to resume once suspended.
Previously, MIPS IRQs were not disabled properly, so the original
code appeared to work. Commit a3e6c1eff5 ("MIPS: IRQ: Fix disable_irq on
CPU IRQs") uncovers the bug. To fix it, add IRQF_NO_SUSPEND to
cascade_irqaction.
This commit is functionally identical to 0add9c2f1c ("MIPS:
Loongson-3: Add IRQF_NO_SUSPEND to Cascade irqaction"), but it forgot
to apply the same fix to Loongson2.
Signed-off-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # v3.19+
Referencing the __kernel_long_t type caused some user space applications
to stop compiling when they had not already included linux/posix_types.h,
e.g.
s/multicast.c -o ext/sockets/multicast.lo
In file included from /builddir/build/BUILD/php-7.3.3/main/php.h:468,
from /builddir/build/BUILD/php-7.3.3/ext/sockets/sockets.c:27:
/builddir/build/BUILD/php-7.3.3/ext/sockets/sockets.c: In function 'zm_startup_sockets':
/builddir/build/BUILD/php-7.3.3/ext/sockets/sockets.c:776:40: error: '__kernel_long_t' undeclared (first use in this function)
776 | REGISTER_LONG_CONSTANT("SO_SNDTIMEO", SO_SNDTIMEO, CONST_CS | CONST_PERSISTENT);
It is safe to include that header here, since it only contains kernel
internal types that do not conflict with other user space types.
It's still possible that some related build failures remain, but those
are likely to be for code that is not already y2038 safe.
Reported-by: Laura Abbott <labbott@redhat.com>
Fixes: a9beb86ae6 ("sock: Add SO_RCVTIMEO_NEW and SO_SNDTIMEO_NEW")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
- do not generate unneeded top-level built-in.a
- let git ignore O= directory entirely
- optimize scripts/kallsyms slightly
- exclude DWARF info from *.s regardless of config options
- fix GCC toolchain search path for Clang to prepare ld.lld support
- do not generate modules.order when CONFIG_MODULES is disabled
- simplify single target rules and remove VPATH for external module build
- allow to add optional flags to dpkg-buildpackage when building deb-pkg
- move some compiler option tests from Makefile to Kconfig
- various Makefile cleanups
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJcgxYUAAoJED2LAQed4NsGr7YQAJq4LmN/aZDI9Mt0YAQjEyyA
PCpm8J2HI9HO1sMoY7J/ksWmV0BU25G+uspKD7dXAQo3l9fmahQM5e4dsyZ4Xqs8
DyyYSGtJJnMJaWmupIZNA4UKDCVtwPoVW8YeuK9rwADVokCux9avogof9O1OoA/E
Pylo+I4UCM82kbpZSd+UxnCx6B0v8XGtW+d31Q4yZXCkw5nw14chrlaprcqB3UgB
+7C3xOnDWCi7gyxaTqmD7dLay2DM8KCDlznEvBL733Y/cK3to1fywzEPzp0JQCLX
BLgmmpW13NF++q5BCoTW6sFjZAhBVbiYZwesMrCi75Y32T8zt4G5l4pkvGkSuGF/
UQh5aoCxaMIp70VPj/loZ0lh78nwVGTok9zRb0rfztM0X4DbmiPi5MNiHRzRpIeE
1jjEa/GK1t0TDnXc/MuDFK8cWwdhttIqUL5yWfAxjXbtP27eLtsopQUdW7EPHs7d
sMnfuSUuhOC28yByVxIkBcwawLyYrcWRphJ3ixCO70CoJWt2DT6aOKxcFJefoJix
Pto6Oo3oQ4iypMM5M9/0Uo+AK2TKRejWIqtZdbo+ir70tNxVH3WDZq++fG0drXOB
r2I/GY6nRjuzLOe2jzEqywFTFd2xpk4Qo84LGb1R3U6aU5qS2gA0W/q00JS5c2qU
R8uReJ7bvmLmrVNZ/NI4
=y9YG
-----END PGP SIGNATURE-----
Merge tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- do not generate unneeded top-level built-in.a
- let git ignore O= directory entirely
- optimize scripts/kallsyms slightly
- exclude DWARF info from *.s regardless of config options
- fix GCC toolchain search path for Clang to prepare ld.lld support
- do not generate modules.order when CONFIG_MODULES is disabled
- simplify single target rules and remove VPATH for external module
build
- allow to add optional flags to dpkg-buildpackage when building
deb-pkg
- move some compiler option tests from Makefile to Kconfig
- various Makefile cleanups
* tag 'kbuild-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits)
kbuild: remove scripts/basic/% build target
kbuild: use -Werror=implicit-... instead of -Werror-implicit-...
kbuild: clean up scripts/gcc-version.sh
kbuild: remove cc-version macro
kbuild: update comment block of scripts/clang-version.sh
kbuild: remove commented-out INITRD_COMPRESS
kbuild: move -gsplit-dwarf, -gdwarf-4 option tests to Kconfig
kbuild: [bin]deb-pkg: add DPKG_FLAGS variable
kbuild: move ".config not found!" message from Kconfig to Makefile
kbuild: invoke syncconfig if include/config/auto.conf.cmd is missing
kbuild: simplify single target rules
kbuild: remove empty rules for makefiles
kbuild: make -r/-R effective in top Makefile for old Make versions
kbuild: move tools_silent to a more relevant place
kbuild: compute false-positive -Wmaybe-uninitialized cases in Kconfig
kbuild: refactor cc-cross-prefix implementation
kbuild: hardcode genksyms path and remove GENKSYMS variable
scripts/gdb: refactor rules for symlink creation
kbuild: create symlink to vmlinux-gdb.py in scripts_gdb target
scripts/gdb: do not descend into scripts/gdb from scripts
...
- add debugfs support for dumping dma-debug information (Corentin Labbe)
- Kconfig cleanups (Andy Shevchenko and me)
- debugfs cleanups (Greg Kroah-Hartman)
- improve dma_map_resource and use it in the media code
- arch_setup_dma_ops / arch_teardown_dma_ops cleanups
- various small cleanups and improvements for the per-device coherent
allocator
- make the DMA mask an upper bound and don't fail "too large" dma mask
in the remaning two architectures - this will allow big driver
cleanups in the following merge windows
-----BEGIN PGP SIGNATURE-----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=nAMI
-----END PGP SIGNATURE-----
Merge tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping
Pull DMA mapping updates from Christoph Hellwig:
- add debugfs support for dumping dma-debug information (Corentin
Labbe)
- Kconfig cleanups (Andy Shevchenko and me)
- debugfs cleanups (Greg Kroah-Hartman)
- improve dma_map_resource and use it in the media code
- arch_setup_dma_ops / arch_teardown_dma_ops cleanups
- various small cleanups and improvements for the per-device coherent
allocator
- make the DMA mask an upper bound and don't fail "too large" dma mask
in the remaning two architectures - this will allow big driver
cleanups in the following merge windows
* tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping: (21 commits)
Documentation/DMA-API-HOWTO: update dma_mask sections
sparc64/pci_sun4v: allow large DMA masks
sparc64/iommu: allow large DMA masks
sparc64: refactor the ali DMA quirk
ccio: allow large DMA masks
dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag
dma-mapping: remove dma_mark_declared_memory_occupied
dma-mapping: move CONFIG_DMA_CMA to kernel/dma/Kconfig
dma-mapping: improve selection of dma_declare_coherent availability
dma-mapping: remove an incorrect __iommem annotation
of: select OF_RESERVED_MEM automatically
device.h: dma_mem is only needed for HAVE_GENERIC_DMA_COHERENT
mfd/sm501: depend on HAS_DMA
dma-mapping: add a kconfig symbol for arch_teardown_dma_ops availability
dma-mapping: add a kconfig symbol for arch_setup_dma_ops availability
dma-mapping: move debug configuration options to kernel/dma
dma-debug: add dumping facility via debugfs
dma: debug: no need to check return value of debugfs_create functions
videobuf2: replace a layering violation with dma_map_resource
dma-mapping: don't BUG when calling dma_map_resource on RAM
...
First: Ted, Jaegeuk, and I have decided to add me as a co-maintainer for
fscrypt, and we're now using a shared git tree. So we've updated
MAINTAINERS accordingly, and I'm doing the pull request this time.
The actual changes for v5.1 are:
- Remove the fs-specific kconfig options like CONFIG_EXT4_ENCRYPTION and
make fscrypt support for all fscrypt-capable filesystems be controlled
by CONFIG_FS_ENCRYPTION, similar to how CONFIG_QUOTA works.
- Improve error code for rename() and link() into encrypted directories.
- Various cleanups.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCXH2YDRQcZWJpZ2dlcnNA
Z29vZ2xlLmNvbQAKCRDzXCl4vpKOK+SAAQCWYOTwYko8uE8Ze8i2fiUm0vr91NOg
zj5DGmK7Izxy/gEAsNDOVA7zWrDg/f5600/7aLpDQQTGHA38YVsgiyd7DgY=
=S3tT
-----END PGP SIGNATURE-----
Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt
Pull fscrypt updates from Eric Biggers:
"First: Ted, Jaegeuk, and I have decided to add me as a co-maintainer
for fscrypt, and we're now using a shared git tree. So we've updated
MAINTAINERS accordingly, and I'm doing the pull request this time.
The actual changes for v5.1 are:
- Remove the fs-specific kconfig options like CONFIG_EXT4_ENCRYPTION
and make fscrypt support for all fscrypt-capable filesystems be
controlled by CONFIG_FS_ENCRYPTION, similar to how CONFIG_QUOTA
works.
- Improve error code for rename() and link() into encrypted
directories.
- Various cleanups"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
MAINTAINERS: add Eric Biggers as an fscrypt maintainer
fscrypt: return -EXDEV for incompatible rename or link into encrypted dir
fscrypt: remove filesystem specific build config option
f2fs: use IS_ENCRYPTED() to check encryption status
ext4: use IS_ENCRYPTED() to check encryption status
fscrypt: remove CRYPTO_CTR dependency
Only a few small changes this time:
- Michael S. Tsirkin cleans up linux/mman.h
- Mike Rapoport found a typo
I had originally merged another cleanup series for I/O accessors from
Hugo Lefeuvre as well, but dropped it after the discussion of the barrier
semantics and some conflicts. I expect this series to get merged for a
later release though.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=C9p7
-----END PGP SIGNATURE-----
Merge tag 'asm-generic-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"Only a few small changes this time:
- Michael S. Tsirkin cleans up linux/mman.h
- Mike Rapoport found a typo
I had originally merged another cleanup series for I/O accessors from
Hugo Lefeuvre as well, but dropped it after the discussion of the
barrier semantics and some conflicts. I expect this series to get
merged for a later release though"
* tag 'asm-generic-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
asm-generic/page.h: fix typo in #error text requiring a real asm/page.h
arch: move common mmap flags to linux/mman.h
drm: tweak header name
x86/mpx: tweak header name
Pull year 2038 updates from Thomas Gleixner:
"Another round of changes to make the kernel ready for 2038. After lots
of preparatory work this is the first set of syscalls which are 2038
safe:
403 clock_gettime64
404 clock_settime64
405 clock_adjtime64
406 clock_getres_time64
407 clock_nanosleep_time64
408 timer_gettime64
409 timer_settime64
410 timerfd_gettime64
411 timerfd_settime64
412 utimensat_time64
413 pselect6_time64
414 ppoll_time64
416 io_pgetevents_time64
417 recvmmsg_time64
418 mq_timedsend_time64
419 mq_timedreceiv_time64
420 semtimedop_time64
421 rt_sigtimedwait_time64
422 futex_time64
423 sched_rr_get_interval_time64
The syscall numbers are identical all over the architectures"
* 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
riscv: Use latest system call ABI
checksyscalls: fix up mq_timedreceive and stat exceptions
unicore32: Fix __ARCH_WANT_STAT64 definition
asm-generic: Make time32 syscall numbers optional
asm-generic: Drop getrlimit and setrlimit syscalls from default list
32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option
compat ABI: use non-compat openat and open_by_handle_at variants
y2038: add 64-bit time_t syscalls to all 32-bit architectures
y2038: rename old time and utime syscalls
y2038: remove struct definition redirects
y2038: use time32 syscall names on 32-bit
syscalls: remove obsolete __IGNORE_ macros
y2038: syscalls: rename y2038 compat syscalls
x86/x32: use time64 versions of sigtimedwait and recvmmsg
timex: change syscalls to use struct __kernel_timex
timex: use __kernel_timex internally
sparc64: add custom adjtimex/clock_adjtime functions
time: fix sys_timer_settime prototype
time: Add struct __kernel_timex
time: make adjtime compat handling available for 32 bit
...
- Support for the MIPSr6 MemoryMapID register & Global INValidate TLB
(GINVT) instructions, allowing for more efficient TLB maintenance when
running on a CPU such as the I6500 that supports these.
- Enable huge page support for MIPS64r6.
- Optimize post-DMA cache sync by removing that code entirely for kernel
configurations in which we know it won't be needed.
- The number of pages allocated for interrupt stacks is now calculated
correctly, where before we would wastefully allocate too much memory
in some configurations.
- The ath79 platform migrates to devicetree.
- The bcm47xx platform sees fixes for the Buffalo WHR-G54S board.
- The ingenic/jz4740 platform gains support for appended devicetrees.
- The cavium_octeon, lantiq, loongson32 & sgi-ip27 platforms all see
cleanups as do various pieces of core architecture code.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXH3BQxUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN1+4wD+Oh4JTfZN/NEOQMlrSkXxjEHqjX3u
1Y6CiiPCs+q2UnYBANb+ic+ZH5MnvJxxmcvlYI2q3rIh4b8TDriip4KMUTUP
=Sw9X
-----END PGP SIGNATURE-----
Merge tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
- Support for the MIPSr6 MemoryMapID register & Global INValidate TLB
(GINVT) instructions, allowing for more efficient TLB maintenance
when running on a CPU such as the I6500 that supports these.
- Enable huge page support for MIPS64r6.
- Optimize post-DMA cache sync by removing that code entirely for
kernel configurations in which we know it won't be needed.
- The number of pages allocated for interrupt stacks is now calculated
correctly, where before we would wastefully allocate too much memory
in some configurations.
- The ath79 platform migrates to devicetree.
- The bcm47xx platform sees fixes for the Buffalo WHR-G54S board.
- The ingenic/jz4740 platform gains support for appended devicetrees.
- The cavium_octeon, lantiq, loongson32 & sgi-ip27 platforms all see
cleanups as do various pieces of core architecture code.
* tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (66 commits)
MIPS: lantiq: Remove separate GPHY Firmware loader
MIPS: ingenic: Add support for appended devicetree
MIPS: SGI-IP27: rework HUB interrupts
MIPS: SGI-IP27: do boot CPU init later
MIPS: SGI-IP27: do xtalk scanning later
MIPS: SGI-IP27: use pr_info/pr_emerg and pr_cont to fix output
MIPS: SGI-IP27: clean up bridge access and header files
MIPS: SGI-IP27: get rid of volatile and hubreg_t
MIPS: irq: Allocate accurate order pages for irq stack
MIPS: dma-noncoherent: Remove bogus condition in dma_sync_phys()
MIPS: eBPF: Remove REG_32BIT_ZERO_EX
MIPS: eBPF: Always return sign extended 32b values
MIPS: CM: Fix indentation
MIPS: BCM47XX: Fix/improve Buffalo WHR-G54S support
MIPS: OCTEON: program rx/tx-delay always from DT
MIPS: OCTEON: delete board-specific link status
MIPS: OCTEON: don't lie about interface type of CN3005 board
MIPS: OCTEON: warn if deprecated link status is being used
MIPS: OCTEON: add fixed-link nodes to in-kernel device tree
MIPS: Delete unused flush_cache_sigtramp()
...
Pull networking updates from David Miller:
"Here we go, another merge window full of networking and #ebpf changes:
1) Snoop DHCPACKS in batman-adv to learn MAC/IP pairs in the DHCP
range without dealing with floods of ARP traffic, from Linus
Lüssing.
2) Throttle buffered multicast packet transmission in mt76, from
Felix Fietkau.
3) Support adaptive interrupt moderation in ice, from Brett Creeley.
4) A lot of struct_size conversions, from Gustavo A. R. Silva.
5) Add peek/push/pop commands to bpftool, as well as bash completion,
from Stanislav Fomichev.
6) Optimize sk_msg_clone(), from Vakul Garg.
7) Add SO_BINDTOIFINDEX, from David Herrmann.
8) Be more conservative with local resends due to local congestion,
from Yuchung Cheng.
9) Allow vetoing of unsupported VXLAN FDBs, from Petr Machata.
10) Add health buffer support to devlink, from Eran Ben Elisha.
11) Add TXQ scheduling API to mac80211, from Toke Høiland-Jørgensen.
12) Add statistics to basic packet scheduler filter, from Cong Wang.
13) Add GRE tunnel support for mlxsw Spectrum-2, from Nir Dotan.
14) Lots of new IP tunneling forwarding tests, also from Nir Dotan.
15) Add 3ad stats to bonding, from Nikolay Aleksandrov.
16) Lots of probing improvements for bpftool, from Quentin Monnet.
17) Various nfp drive #ebpf JIT improvements from Jakub Kicinski.
18) Allow #ebpf programs to access gso_segs from skb shared info, from
Eric Dumazet.
19) Add sock_diag support for AF_XDP sockets, from Björn Töpel.
20) Support 22260 iwlwifi devices, from Luca Coelho.
21) Use rbtree for ipv6 defragmentation, from Peter Oskolkov.
22) Add JMP32 instruction class support to #ebpf, from Jiong Wang.
23) Add spinlock support to #ebpf, from Alexei Starovoitov.
24) Support 256-bit keys and TLS 1.3 in ktls, from Dave Watson.
25) Add device infomation API to devlink, from Jakub Kicinski.
26) Add new timestamping socket options which are y2038 safe, from
Deepa Dinamani.
27) Add RX checksum offloading for various sh_eth chips, from Sergei
Shtylyov.
28) Flow offload infrastructure, from Pablo Neira Ayuso.
29) Numerous cleanups, improvements, and bug fixes to the PHY layer
and many drivers from Heiner Kallweit.
30) Lots of changes to try and make packet scheduler classifiers run
lockless as much as possible, from Vlad Buslov.
31) Support BCM957504 chip in bnxt_en driver, from Erik Burrows.
32) Add concurrency tests to tc-tests infrastructure, from Vlad
Buslov.
33) Add hwmon support to aquantia, from Heiner Kallweit.
34) Allow 64-bit values for SO_MAX_PACING_RATE, from Eric Dumazet.
And I would be remiss if I didn't thank the various major networking
subsystem maintainers for integrating much of this work before I even
saw it. Alexei Starovoitov, Daniel Borkmann, Pablo Neira Ayuso,
Johannes Berg, Kalle Valo, and many others. Thank you!"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2207 commits)
net/sched: avoid unused-label warning
net: ignore sysctl_devconf_inherit_init_net without SYSCTL
phy: mdio-mux: fix Kconfig dependencies
net: phy: use phy_modify_mmd_changed in genphy_c45_an_config_aneg
net: dsa: mv88e6xxx: add call to mv88e6xxx_ports_cmode_init to probe for new DSA framework
selftest/net: Remove duplicate header
sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79
net/mlx5e: Update tx reporter status in case channels were successfully opened
devlink: Add support for direct reporter health state update
devlink: Update reporter state to error even if recover aborted
sctp: call iov_iter_revert() after sending ABORT
team: Free BPF filter when unregistering netdev
ip6mr: Do not call __IP6_INC_STATS() from preemptible context
isdn: mISDN: Fix potential NULL pointer dereference of kzalloc
net: dsa: mv88e6xxx: support in-band signalling on SGMII ports with external PHYs
cxgb4/chtls: Prefix adapter flags with CXGB4
net-sysfs: Switch to bitmap_zalloc()
mellanox: Switch to bitmap_zalloc()
bpf: add test cases for non-pointer sanitiation logic
mlxsw: i2c: Extend initialization by querying resources data
...
A fairly quiet release for SPI, the biggest thing is the conversion to
use GPIO descriptors which is now 90% done but still needs some
stragglers converting.
- Support for inter-word delays.
- Conversion of the core and most drivers to use GPIO descriptors for
GPIO controlled chip selects.
- New drivers for NXP FlexSPI and QuadSPI, SiFive and Spreadtrum.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlx9WtETHGJyb29uaWVA
a2VybmVsLm9yZwAKCRAk1otyXVSH0DfrB/92O47HJfHg1xIgOp4BLzT8lA5zQEsy
a8ApcLVLvY6mSfbB/G7RosfoPwTc1eZP5Q2BqzQOBIO+507ao4AcASARmkTwjwkC
eRUJ/THkGyGurs8POtnc5YJlHsT1t743QpqlUNekt+NqognlkPccgc5bNgixfuPD
eVSwVC85SKP3gCpAjVb6FFFmlWr8AKdlgx+41h9QpMNG/85H6xgo4C4Wlajt42/E
wNx+WXzlPyzB5Lc3IGPeF/I/Hu/Ta3hUZLTVpWi5ubM8p4SYGmMZ9l8sURPCz1pK
UMZFpJxx8DWwkj2F/FkoLasfiRqUHIP9K7NfKF0u2xdNbhEk1GA3NAG0
=ctKG
-----END PGP SIGNATURE-----
Merge tag 'spi-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"A fairly quiet release for SPI, the biggest thing is the conversion to
use GPIO descriptors which is now 90% done but still needs some
stragglers converting.
Summary:
- Support for inter-word delays
- Conversion of the core and most drivers to use GPIO descriptors for
GPIO controlled chip selects
- New drivers for NXP FlexSPI and QuadSPI, SiFive and Spreadtrum"
* tag 'spi-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (104 commits)
spi: sh-msiof: Restrict bits per word to 8/16/24/32 on R-Car Gen2/3
spi: sifive: Remove redundant dev_err call in sifive_spi_probe()
spi: sifive: Remove spi_master_put in sifive_spi_remove()
spi: spi-gpio: fix SPI_CS_HIGH capability
spi: pxa2xx: Setup maximum supported DMA transfer length
spi: sifive: Add driver for the SiFive SPI controller
spi: sifive: Add DT documentation for SiFive SPI controller
spi: sprd: Add a prefix for SPI DMA channel macros
spi: sprd: spi: sprd: Add DMA mode support
dt-bindings: spi: Add the DMA properties for the SPI dma mode
spi: sprd: Add the SPI irq function for the SPI DMA mode
dt-bindings: spi: imx: Add an entry for the i.MX8QM compatible
spi: use gpio[d]_set_value_cansleep for setting chipselect GPIO
spi: gpio: Advertise support for SPI_CS_HIGH
spi: sh-msiof: Replace spi_master by spi_controller
spi: sh-hspi: Replace spi_master by spi_controller
spi: rspi: Replace spi_master by spi_controller
spi: atmel-quadspi: add support for sam9x60 qspi controller
dt-bindings: spi: atmel-quadspi: QuadSPI driver for Microchip SAM9X60
spi: atmel-quadspi: add support for named peripheral clock
...
Every in-kernel use of this function defined it to KERNEL_DS (either as
an actual define, or as an inline function). It's an entirely
historical artifact, and long long long ago used to actually read the
segment selector valueof '%ds' on x86.
Which in the kernel is always KERNEL_DS.
Inspired by a patch from Jann Horn that just did this for a very small
subset of users (the ones in fs/), along with Al who suggested a script.
I then just took it to the logical extreme and removed all the remaining
gunk.
Roughly scripted with
git grep -l '(get_ds())' -- :^tools/ | xargs sed -i 's/(get_ds())/(KERNEL_DS)/'
git grep -lw 'get_ds' -- :^tools/ | xargs sed -i '/^#define get_ds()/d'
plus manual fixups to remove a few unusual usage patterns, the couple of
inline function cases and to fix up a comment that had become stale.
The 'get_ds()' function remains in an x86 kvm selftest, since in user
space it actually does something relevant.
Inspired-by: Jann Horn <jannh@google.com>
Inspired-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull networking fixes from David Miller:
1) Fix refcount leak in act_ipt during replace, from Davide Caratti.
2) Set task state properly in tun during blocking reads, from Timur
Celik.
3) Leaked reference in DSA, from Wen Yang.
4) NULL deref in act_tunnel_key, from Vlad Buslov.
5) cipso_v4_erro can reference the skb IPCB in inappropriate contexts
thus referencing garbage, from Nazarov Sergey.
6) Don't accept RTA_VIA and RTA_GATEWAY in contexts where those
attributes make no sense.
7) Fix hung sendto in tipc, from Tung Nguyen.
8) Out-of-bounds access in netlabel, from Paul Moore.
9) Grant reference leak in xen-netback, from Igor Druzhinin.
10) Fix tx stalls with lan743x, from Bryan Whitehead.
11) Fix interrupt storm with mv88e6xxx, from Hein Kallweit.
12) Memory leak in sit on device registry failure, from Mao Wenan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
net: sit: fix memory leak in sit_init_net()
net: dsa: mv88e6xxx: Fix statistics on mv88e6161
geneve: correctly handle ipv6.disable module parameter
net: dsa: mv88e6xxx: prevent interrupt storm caused by mv88e6390x_port_set_cmode
bpf: fix sanitation rewrite in case of non-pointers
ipv4: Add ICMPv6 support when parse route ipproto
MIPS: eBPF: Fix icache flush end address
lan743x: Fix TX Stall Issue
net: phy: phylink: fix uninitialized variable in phylink_get_mac_state
net: aquantia: regression on cpus with high cores: set mode with 8 queues
selftests: fixes for UDP GRO
bpf: drop refcount if bpf_map_new_fd() fails in map_create()
net: dsa: mv88e6xxx: power serdes on/off for 10G interfaces on 6390X
net: dsa: mv88e6xxx: Fix u64 statistics
xen-netback: don't populate the hash cache on XenBus disconnect
xen-netback: fix occasional leak of grant ref mappings under memory pressure
sctp: chunk.c: correct format string for size_t in printk
net: netem: fix skb length BUG_ON in __skb_to_sgvec
netlabel: fix out-of-bounds memory accesses
ipv4: Pass original device to ip_rcv_finish_core
...
The MIPS eBPF JIT calls flush_icache_range() in order to ensure the
icache observes the code that we just wrote. Unfortunately it gets the
end address calculation wrong due to some bad pointer arithmetic.
The struct jit_ctx target field is of type pointer to u32, and as such
adding one to it will increment the address being pointed to by 4 bytes.
Therefore in order to find the address of the end of the code we simply
need to add the number of 4 byte instructions emitted, but we mistakenly
add the number of instructions multiplied by 4. This results in the call
to flush_icache_range() operating on a memory region 4x larger than
intended, which is always wasteful and can cause crashes if we overrun
into an unmapped page.
Fix this by correcting the pointer arithmetic to remove the bogus
multiplication, and use braces to remove the need for a set of brackets
whilst also making it obvious that the target field is a pointer.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: b6bd53f9c4 ("MIPS: Add missing file for eBPF JIT.")
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: stable@vger.kernel.org # v4.13+
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
- Fix 16b cmpxchg() operations which could erroneously fail if bits 15:8
of the old value are non-zero. In practice I'm not aware of any actual
users of 16b cmpxchg() on MIPS, but this fixes the support for it was
was introduced in v4.13.
- Provide a struct device to dma_alloc_coherent for Lantiq XWAY systems
with a "Voice MIPS Macro Core" (VMMC) device.
- Provide DMA masks for BCM63xx ethernet devices, fixing a regression
introduced in v4.19.
- Fix memblock reservation for the kernel when the system has a non-zero
PHYS_OFFSET, correcting the memblock conversion performed in v4.20.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXHhqjBUccGF1bC5idXJ0
b25AbWlwcy5jb20ACgkQPqefrLV1AN3ZaAD/SFgi3dS9bSWhDhiy83llLaWiCGPb
i09uzo3rpWoKSwQBAIwLEfmaHz/sYdliKRlE13uaxYWzwaN+VHXIPjlzbYMB
=cDlO
-----END PGP SIGNATURE-----
Merge tag 'mips_fixes_5.0_4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Paul Burton:
"A few more MIPS fixes:
- Fix 16b cmpxchg() operations which could erroneously fail if bits
15:8 of the old value are non-zero. In practice I'm not aware of
any actual users of 16b cmpxchg() on MIPS, but this fixes the
support for it was was introduced in v4.13.
- Provide a struct device to dma_alloc_coherent for Lantiq XWAY
systems with a "Voice MIPS Macro Core" (VMMC) device.
- Provide DMA masks for BCM63xx ethernet devices, fixing a regression
introduced in v4.19.
- Fix memblock reservation for the kernel when the system has a
non-zero PHYS_OFFSET, correcting the memblock conversion performed
in v4.20"
* tag 'mips_fixes_5.0_4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: fix memory setup for platforms with PHYS_OFFSET != 0
MIPS: BCM63XX: provide DMA masks for ethernet devices
MIPS: lantiq: pass struct device to DMA API functions
MIPS: fix truncation in __cmpxchg_small for short values
For platforms, which use a PHYS_OFFSET != 0, symbol _end also
contains that offset. So when calling memblock_reserve() for
reserving kernel the size argument needs to be adjusted.
Fixes: bcec54bf31 ("mips: switch to NO_BOOTMEM")
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org # v4.20+
This is a follow-up to the y2038 syscall patches already merged in the tip
tree. As the final 32-bit RISC-V syscall ABI is still being decided on,
this is the last chance to make a few corrections to leave out interfaces
based on 32-bit time_t along with the old off_t and rlimit types.
The series achieves this in a few steps:
- A couple of bug fixes for minor regressions I introduced
in the original series
- A couple of older patches from Yury Norov that I had never
merged in the past, these fix up the openat/open_by_handle_at and
getrlimit/setrlimit syscalls to disallow the old versions of off_t
and rlimit.
- Hiding the deprecated system calls behind an #ifdef in
include/uapi/asm-generic/unistd.h
- Change arch/riscv to drop all these ABIs.
Originally, the plan was to also leave these out on C-Sky, but that now
has a glibc port that uses the older interfaces, so we need to leave
them in place.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=/iFA
-----END PGP SIGNATURE-----
Merge tag 'y2038-syscall-abi' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground into timers/2038
Pull additional syscall ABI cleanup for y2038 from Arnd Bergmann:
This is a follow-up to the y2038 syscall patches already merged in the tip
tree. As the final 32-bit RISC-V syscall ABI is still being decided on,
this is the last chance to make a few corrections to leave out interfaces
based on 32-bit time_t along with the old off_t and rlimit types.
The series achieves this in a few steps:
- A couple of bug fixes for minor regressions I introduced
in the original series
- A couple of older patches from Yury Norov that I had never
merged in the past, these fix up the openat/open_by_handle_at and
getrlimit/setrlimit syscalls to disallow the old versions of off_t
and rlimit.
- Hiding the deprecated system calls behind an #ifdef in
include/uapi/asm-generic/unistd.h
- Change arch/riscv to drop all these ABIs.
Originally, the plan was to also leave these out on C-Sky, but that now
has a glibc port that uses the older interfaces, so we need to leave
them in place.
The separate GPHY Firmware loader driver is not used any more, the GPHY
firmware is now loaded by the GSWIP switch driver which also makes use
of the GPHY.
Remove the old unused GPHY firmware loader driver.
The GPHY firmware is useless without an Ethernet and switch driver, it
should not harm if loading this does not work for system using an old
device tree.
I am not aware of any vendor separating the device tree from the kernel
binary, it should be ok to remove this.
The code and the functionality form this separate GPHY firmware loader
was added to the gswip driver in commit 14fceff477 ("net: dsa: Add
Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: john@phrozen.org
Cc: netdev@vger.kernel.org
Add support for booting the kernel from an externally-appended
devicetree, if no devicetree was built-in.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
kvm_arch_memslots_updated() is at this point in time an x86-specific
hook for handling MMIO generation wraparound. x86 stashes 19 bits of
the memslots generation number in its MMIO sptes in order to avoid
full page fault walks for repeat faults on emulated MMIO addresses.
Because only 19 bits are used, wrapping the MMIO generation number is
possible, if unlikely. kvm_arch_memslots_updated() alerts x86 that
the generation has changed so that it can invalidate all MMIO sptes in
case the effective MMIO generation has wrapped so as to avoid using a
stale spte, e.g. a (very) old spte that was created with generation==0.
Given that the purpose of kvm_arch_memslots_updated() is to prevent
consuming stale entries, it needs to be called before the new generation
is propagated to memslots. Invalidating the MMIO sptes after updating
memslots means that there is a window where a vCPU could dereference
the new memslots generation, e.g. 0, and incorrectly reuse an old MMIO
spte that was created with (pre-wrap) generation==0.
Fixes: e59dbe09f8 ("KVM: Introduce kvm_arch_memslots_updated()")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This API is primarily used through DT entries, but two architectures
and two drivers call it directly. So instead of selecting the config
symbol for random architectures pull it in implicitly for the actual
users. Also rename the Kconfig option to describe the feature better.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit rearranges the HUB interrupt code by using MIPS_IRQ_CPU
interrupt handling code and modern Linux IRQ framework features to get
rid of global arrays. It also adds support for irq affinity setting.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
To make use of per_cpu variables in interrupt code per_cpu_init() must
be done after setup_per_cpu_areas(). This is achieved by calling it
in smp_prepare_boot_cpu() via a new smp_ops method.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Move xtalk scanning to a later boot stage to be able using things like
kmalloc and friends.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Topology and NMI output needs pr_cont() to look the way it was in the
old days of printk.
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Introduced bridge_read/bridge_write/bridge_set/bridge_clr for accessing
bridge register and get rid of volatile declarations. Also removed
all typedefs from arch/mips/include/asm/pci/bridge.h and cleaned up
language in arch/mips/pci/ops-bridge.c
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Replace hub register access with __raw_readq/__raw_writeq and get
rid of hubreg_t completely. Also remove no longer (probably never
used) used defines
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The irq_pages is the number of pages for irq stack, but not the
order which is needed by __get_free_pages().
We can use get_order() to calculate the accurate order.
Signed-off-by: Liu Xiang <liu.xiang6@zte.com.cn>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: fe8bd18ffe ("MIPS: Introduce irq_stack")
Cc: linux-mips@vger.kernel.org
Cc: stable@vger.kernel.org # v4.11+
Commit e36863a550 ("MIPS: HIGHMEM DMA on noncoherent MIPS32
processors") introduced code which:
1) Calculates an offset within a page, by ANDing an address
with ~PAGE_MASK.
2) Checks whether that offset is >= PAGE_SIZE.
This check can never evaluate true, making the code it guards
unreachable. smatch spots bogus arithmetic resulting from the
impossible condition, resulting in the following warning:
arch/mips/mm/dma-noncoherent.c:125
dma_sync_phys() warn: mask and shift to zero
Fix this by removing the impossible to satisfy condition & the
unreachable code it guards.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Christoph Hellwig <hch@lst.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Robin Murphy <robin.murphy@arm.com>
REG_32BIT_ZERO_EX and REG_64BIT are always handled in exactly the same
way, and reg_val_propagate_range() never actually sets any register to
type REG_32BIT_ZERO_EX.
Remove the redundant & unused REG_32BIT_ZERO_EX.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Jiong Wang <jiong.wang@netronome.com>
The function prototype used to call JITed eBPF code (ie. the type of the
struct bpf_prog bpf_func field) returns an unsigned int. The MIPS n64
ABI that MIPS64 kernels target defines that 32 bit integers should
always be sign extended when passed in registers as either arguments or
return values.
This means that when returning any value which may not already be sign
extended (ie. of type REG_64BIT or REG_32BIT_ZERO_EX) we need to perform
that sign extension in order to comply with the n64 ABI. Without this we
see strange looking test failures from test_bpf.ko, such as:
test_bpf: #65 ALU64_MOV_X:
dst = 4294967295 jited:1 ret -1 != -1 FAIL (1 times)
Although the return value printed matches the expected value, this is
only because printf is only examining the least significant 32 bits of
the 64 bit register value we returned. The register holding the expected
value is sign extended whilst the v0 register was set to a zero extended
value by our JITed code, so when compared by a conditional branch
instruction the values are not equal.
We already handle this when the return value register is of type
REG_32BIT_ZERO_EX, so simply extend this to also cover REG_64BIT.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: b6bd53f9c4 ("MIPS: Add missing file for eBPF JIT.")
Cc: stable@vger.kernel.org # v4.13+
Cc: linux-mips@vger.kernel.org
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: Jiong Wang <jiong.wang@netronome.com>
All new 32-bit architectures should have 64-bit userspace off_t type, but
existing architectures has 32-bit ones.
To enforce the rule, new config option is added to arch/Kconfig that defaults
ARCH_32BIT_OFF_T to be disabled for new 32-bit architectures. All existing
32-bit architectures enable it explicitly.
New option affects force_o_largefile() behaviour. Namely, if userspace
off_t is 64-bits long, we have no reason to reject user to open big files.
Note that even if architectures has only 64-bit off_t in the kernel
(arc, c6x, h8300, hexagon, nios2, openrisc, and unicore32),
a libc may use 32-bit off_t, and therefore want to limit the file size
to 4GB unless specified differently in the open flags.
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yury Norov <ynorov@marvell.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Now that we have 3 mmap flags shared by all architectures,
let's move them into the common header.
This will help discourage future architectures from duplicating code.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Alexei Starovoitov says:
====================
pull-request: bpf 2019-02-16
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) fix lockdep false positive in bpf_get_stackid(), from Alexei.
2) several AF_XDP fixes, from Bjorn, Magnus, Davidlohr.
3) fix narrow load from struct bpf_sock, from Martin.
4) mips JIT fixes, from Paul.
5) gso handling fix in bpf helpers, from Willem.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
REG_32BIT_ZERO_EX and REG_64BIT are always handled in exactly the same
way, and reg_val_propagate_range() never actually sets any register to
type REG_32BIT_ZERO_EX.
Remove the redundant & unused REG_32BIT_ZERO_EX.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
The function prototype used to call JITed eBPF code (ie. the type of the
struct bpf_prog bpf_func field) returns an unsigned int. The MIPS n64
ABI that MIPS64 kernels target defines that 32 bit integers should
always be sign extended when passed in registers as either arguments or
return values.
This means that when returning any value which may not already be sign
extended (ie. of type REG_64BIT or REG_32BIT_ZERO_EX) we need to perform
that sign extension in order to comply with the n64 ABI. Without this we
see strange looking test failures from test_bpf.ko, such as:
test_bpf: #65 ALU64_MOV_X:
dst = 4294967295 jited:1 ret -1 != -1 FAIL (1 times)
Although the return value printed matches the expected value, this is
only because printf is only examining the least significant 32 bits of
the 64 bit register value we returned. The register holding the expected
value is sign extended whilst the v0 register was set to a zero extended
value by our JITed code, so when compared by a conditional branch
instruction the values are not equal.
We already handle this when the return value register is of type
REG_32BIT_ZERO_EX, so simply extend this to also cover REG_64BIT.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: b6bd53f9c4 ("MIPS: Add missing file for eBPF JIT.")
Cc: stable@vger.kernel.org # v4.13+
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
mips_cm_error_report() contains a function call that's incorrectly
indented a level further than it ought to be. Remove a tab from the
start of both affected lines.
Signed-off-by: Paul Burton <paul.burton@mips.com>
The netfilter conflicts were rather simple overlapping
changes.
However, the cls_tcindex.c stuff was a bit more complex.
On the 'net' side, Cong is fixing several races and memory
leaks. Whilst on the 'net-next' side we have Vlad adding
the rtnl-ness support.
What I've decided to do, in order to resolve this, is revert the
conversion over to using a workqueue that Cong did, bringing us back
to pure RCU. I did it this way because I believe that either Cong's
races don't apply with have Vlad did things, or Cong will have to
implement the race fix slightly differently.
Signed-off-by: David S. Miller <davem@davemloft.net>
The DMA API generally relies on a struct device to work properly, and
only barely works without one for legacy reasons. Pass the easily
available struct device from the platform_device to remedy this.
Also use GFP_KERNEL instead of GFP_ATOMIC as the gfp_t for the memory
allocation, as we aren't in interrupt context or under a lock.
Note that this whole function looks somewhat bogus given that we never
even look at the returned dma address, and the CPHYSADDR magic on
a returned noncached mapping looks "interesting". But I'll leave
that to people more familiar with the code to sort out.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: John Crispin <john@phrozen.org>
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: dmaengine@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Cc: linux-fbdev@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: iommu@lists.linux-foundation.org
__cmpxchg_small erroneously uses u8 for load comparison which can
be either char or short. This patch changes the local variable to
u32 which is sufficiently sized, as the loaded value is already
masked and shifted appropriately. Using an integer size avoids
any unnecessary canonicalization from use of non native widths.
This patch is part of a series that adapts the MIPS small word
atomics code for xchg and cmpxchg on short and char to RISC-V.
Cc: RISC-V Patches <patches@groups.riscv.org>
Cc: Linux RISC-V <linux-riscv@lists.infradead.org>
Cc: Linux MIPS <linux-mips@linux-mips.org>
Signed-off-by: Michael Clark <michaeljclark@mac.com>
[paul.burton@mips.com:
- Fix varialble typo per Jonas Gorski.
- Consolidate load variable with other declarations.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 3ba7f44d2b ("MIPS: cmpxchg: Implement 1 byte & 2 byte cmpxchg()")
Cc: stable@vger.kernel.org # v4.13+
This series finally gets us to the point of having system calls with
64-bit time_t on all architectures, after a long time of incremental
preparation patches.
There was actually one conversion that I missed during the summer,
i.e. Deepa's timex series, which I now updated based the 5.0-rc1 changes
and review comments.
The following system calls are now added on all 32-bit architectures
using the same system call numbers:
403 clock_gettime64
404 clock_settime64
405 clock_adjtime64
406 clock_getres_time64
407 clock_nanosleep_time64
408 timer_gettime64
409 timer_settime64
410 timerfd_gettime64
411 timerfd_settime64
412 utimensat_time64
413 pselect6_time64
414 ppoll_time64
416 io_pgetevents_time64
417 recvmmsg_time64
418 mq_timedsend_time64
419 mq_timedreceiv_time64
420 semtimedop_time64
421 rt_sigtimedwait_time64
422 futex_time64
423 sched_rr_get_interval_time64
Each one of these corresponds directly to an existing system call
that includes a 'struct timespec' argument, or a structure containing
a timespec or (in case of clock_adjtime) timeval. Not included here
are new versions of getitimer/setitimer and getrusage/waitid, which
are planned for the future but only needed to make a consistent API
rather than for correct operation beyond y2038. These four system
calls are based on 'timeval', and it has not been finally decided
what the replacement kernel interface will use instead.
So far, I have done a lot of build testing across most architectures,
which has found a number of bugs. Runtime testing so far included
testing LTP on 32-bit ARM with the existing system calls, to ensure
we do not regress for existing binaries, and a test with a 32-bit
x86 build of LTP against a modified version of the musl C library
that has been adapted to the new system call interface [3].
This library can be used for testing on all architectures supported
by musl-1.1.21, but it is not how the support is getting integrated
into the official musl release. Official musl support is planned
but will require more invasive changes to the library.
Link: https://lore.kernel.org/lkml/20190110162435.309262-1-arnd@arndb.de/T/
Link: https://lore.kernel.org/lkml/20190118161835.2259170-1-arnd@arndb.de/
Link: https://git.linaro.org/people/arnd/musl-y2038.git/ [2]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=IZVb
-----END PGP SIGNATURE-----
Merge tag 'y2038-new-syscalls' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into timers/2038
Pull y2038 - time64 system calls from Arnd Bergmann:
This series finally gets us to the point of having system calls with 64-bit
time_t on all architectures, after a long time of incremental preparation
patches.
There was actually one conversion that I missed during the summer,
i.e. Deepa's timex series, which I now updated based the 5.0-rc1 changes
and review comments.
The following system calls are now added on all 32-bit architectures using
the same system call numbers:
403 clock_gettime64
404 clock_settime64
405 clock_adjtime64
406 clock_getres_time64
407 clock_nanosleep_time64
408 timer_gettime64
409 timer_settime64
410 timerfd_gettime64
411 timerfd_settime64
412 utimensat_time64
413 pselect6_time64
414 ppoll_time64
416 io_pgetevents_time64
417 recvmmsg_time64
418 mq_timedsend_time64
419 mq_timedreceiv_time64
420 semtimedop_time64
421 rt_sigtimedwait_time64
422 futex_time64
423 sched_rr_get_interval_time64
Each one of these corresponds directly to an existing system call that
includes a 'struct timespec' argument, or a structure containing a timespec
or (in case of clock_adjtime) timeval. Not included here are new versions
of getitimer/setitimer and getrusage/waitid, which are planned for the
future but only needed to make a consistent API rather than for correct
operation beyond y2038. These four system calls are based on 'timeval', and
it has not been finally decided what the replacement kernel interface will
use instead.
So far, I have done a lot of build testing across most architectures, which
has found a number of bugs. Runtime testing so far included testing LTP on
32-bit ARM with the existing system calls, to ensure we do not regress for
existing binaries, and a test with a 32-bit x86 build of LTP against a
modified version of the musl C library that has been adapted to the new
system call interface [3]. This library can be used for testing on all
architectures supported by musl-1.1.21, but it is not how the support is
getting integrated into the official musl release. Official musl support is
planned but will require more invasive changes to the library.
Link: https://lore.kernel.org/lkml/20190110162435.309262-1-arnd@arndb.de/T/
Link: https://lore.kernel.org/lkml/20190118161835.2259170-1-arnd@arndb.de/
Link: https://git.linaro.org/people/arnd/musl-y2038.git/ [2]
The system call tables have diverged a bit over the years, and a number
of the recent additions never made it into all architectures, for one
reason or another.
This is an attempt to clean it up as far as we can without breaking
compatibility, doing a number of steps:
- Add system calls that have not yet been integrated into all
architectures but that we definitely want there. This includes
{,f}statfs64() and get{eg,eu,g,p,u,pp}id() on alpha, which have
been missing traditionally.
- The s390 compat syscall handling is cleaned up to be more like
what we do on other architectures, while keeping the 31-bit
pointer extension. This was merged as a shared branch by the
s390 maintainers and is included here in order to base the other
patches on top.
- Add the separate ipc syscalls on all architectures that
traditionally only had sys_ipc(). This version is done without
support for IPC_OLD that is we have in sys_ipc. The
new semtimedop_time64 syscall will only be added here, not
in sys_ipc
- Add syscall numbers for a couple of syscalls that we probably
don't need everywhere, in particular pkey_* and rseq,
for the purpose of symmetry: if it's in asm-generic/unistd.h,
it makes sense to have it everywhere. I expect that any future
system calls will get assigned on all platforms together, even
when they appear to be specific to a single architecture.
- Prepare for having the same system call numbers for any future
calls. In combination with the generated tables, this hopefully
makes it easier to add new calls across all architectures
together.
All of the above are technically separate from the y2038 work,
but are done as preparation before we add the new 64-bit time_t
system calls everywhere, providing a common baseline set of system
calls.
I expect that glibc and other libraries that want to use 64-bit
time_t will require linux-5.1 kernel headers for building in
the future, and at a much later point may also require linux-5.1
or a later version as the minimum kernel at runtime. Having a
common baseline then allows the removal of many architecture or
kernel version specific workarounds.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=s4wf
-----END PGP SIGNATURE-----
Merge tag 'y2038-syscall-cleanup' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground into timers/2038
Pull preparatory work for y2038 changes from Arnd Bergmann:
System call unification and cleanup
The system call tables have diverged a bit over the years, and a number of
the recent additions never made it into all architectures, for one reason
or another.
This is an attempt to clean it up as far as we can without breaking
compatibility, doing a number of steps:
- Add system calls that have not yet been integrated into all architectures
but that we definitely want there. This includes {,f}statfs64() and
get{eg,eu,g,p,u,pp}id() on alpha, which have been missing traditionally.
- The s390 compat syscall handling is cleaned up to be more like what we
do on other architectures, while keeping the 31-bit pointer
extension. This was merged as a shared branch by the s390 maintainers
and is included here in order to base the other patches on top.
- Add the separate ipc syscalls on all architectures that traditionally
only had sys_ipc(). This version is done without support for IPC_OLD
that is we have in sys_ipc. The new semtimedop_time64 syscall will only
be added here, not in sys_ipc
- Add syscall numbers for a couple of syscalls that we probably don't need
everywhere, in particular pkey_* and rseq, for the purpose of symmetry:
if it's in asm-generic/unistd.h, it makes sense to have it everywhere. I
expect that any future system calls will get assigned on all platforms
together, even when they appear to be specific to a single architecture.
- Prepare for having the same system call numbers for any future calls. In
combination with the generated tables, this hopefully makes it easier to
add new calls across all architectures together.
All of the above are technically separate from the y2038 work, but are done
as preparation before we add the new 64-bit time_t system calls everywhere,
providing a common baseline set of system calls.
I expect that glibc and other libraries that want to use 64-bit time_t will
require linux-5.1 kernel headers for building in the future, and at a much
later point may also require linux-5.1 or a later version as the minimum
kernel at runtime. Having a common baseline then allows the removal of many
architecture or kernel version specific workarounds.
Program rx/tx-delay always from DT.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Delete board-specific link status. This info should now come from
the DT only.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
The fixed-link node in the DT should now take care of the link status,
so this hack can be deleted.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Warn if deprecated link status is being used.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Currently OCTEON ethernet falls back to phyless operation on
boards where we have no known PHY address or a fixed-link node.
Add fixed-link support for boards that need it, so we can clean up
the platform code and ethernet driver from some legacy code.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Accordingly to the documentation
---cut---
The GCR_ERROR_CAUSE.ERR_TYPE field and the GCR_ERROR_MULT.ERR_TYPE
fields can be cleared by either a reset or by writing the current
value of GCR_ERROR_CAUSE.ERR_TYPE to the
GCR_ERROR_CAUSE.ERR_TYPE register.
---cut---
Do exactly this. Original value of cm_error may be safely written back;
it clears error cause and keeps other bits untouched.
Fixes: 3885c2b463 ("MIPS: CM: Add support for reporting CM cache errors")
Signed-off-by: Vladimir Kondratiev <vladimir.kondratiev@linux.intel.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # v4.3+
On my Yeeloong 8089, I noticed the machine fails to shutdown
properly, and often, the function mach_prepare_reboot() is
unexpectedly executed, thus the machine reboots instead. A
wait loop is needed to ensure the system is in a well-defined
state before going down.
In commit 997e93d4df ("MIPS: Hang more efficiently on
halt/powerdown/restart"), a general superset of the wait loop for all
platforms is already provided, so we don't need to implement our own.
This commit simply removes the unreachable() compiler marco after
mach_prepare_reboot(), thus allowing the execution of machine_hang().
My test shows that the machine is now able to shutdown successfully.
Please note that there are two different bugs preventing the machine
from shutting down, another work-in-progress commit is needed to
fix a lockup in cpufreq / i8259 driver, please read Reference, this
commit does not fix that bug.
Reference: https://lkml.org/lkml/2019/2/5/908
Signed-off-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: stable@vger.kernel.org # v4.17+
This adds 21 new system calls on each ABI that has 32-bit time_t
today. All of these have the exact same semantics as their existing
counterparts, and the new ones all have macro names that end in 'time64'
for clarification.
This gets us to the point of being able to safely use a C library
that has 64-bit time_t in user space. There are still a couple of
loose ends to tie up in various areas of the code, but this is the
big one, and should be entirely uncontroversial at this point.
In particular, there are four system calls (getitimer, setitimer,
waitid, and getrusage) that don't have a 64-bit counterpart yet,
but these can all be safely implemented in the C library by wrapping
around the existing system calls because the 32-bit time_t they
pass only counts elapsed time, not time since the epoch. They
will be dealt with later.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
The time, stime, utime, utimes, and futimesat system calls are only
used on older architectures, and we do not provide y2038 safe variants
of them, as they are replaced by clock_gettime64, clock_settime64,
and utimensat_time64.
However, for consistency it seems better to have the 32-bit architectures
that still use them call the "time32" entry points (leaving the
traditional handlers for the 64-bit architectures), like we do for system
calls that now require two versions.
Note: We used to always define __ARCH_WANT_SYS_TIME and
__ARCH_WANT_SYS_UTIME and only set __ARCH_WANT_COMPAT_SYS_TIME and
__ARCH_WANT_SYS_UTIME32 for compat mode on 64-bit kernels. Now this is
reversed: only 64-bit architectures set __ARCH_WANT_SYS_TIME/UTIME, while
we need __ARCH_WANT_SYS_TIME32/UTIME32 for 32-bit architectures and compat
mode. The resulting asm/unistd.h changes look a bit counterintuitive.
This is only a cleanup patch and it should not change any behavior.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This is the big flip, where all 32-bit architectures set COMPAT_32BIT_TIME
and use the _time32 system calls from the former compat layer instead
of the system calls that take __kernel_timespec and similar arguments.
The temporary redirects for __kernel_timespec, __kernel_itimerspec
and __kernel_timex can get removed with this.
It would be easy to split this commit by architecture, but with the new
generated system call tables, it's easy enough to do it all at once,
which makes it a little easier to check that the changes are the same
in each table.
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
These are all for ignoring the lack of obsolete system calls,
which have been marked the same way in scripts/checksyscall.sh,
so these can be removed.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
A lot of system calls that pass a time_t somewhere have an implementation
using a COMPAT_SYSCALL_DEFINEx() on 64-bit architectures, and have
been reworked so that this implementation can now be used on 32-bit
architectures as well.
The missing step is to redefine them using the regular SYSCALL_DEFINEx()
to get them out of the compat namespace and make it possible to build them
on 32-bit architectures.
Any system call that ends in 'time' gets a '32' suffix on its name for
that version, while the others get a '_time32' suffix, to distinguish
them from the normal version, which takes a 64-bit time argument in the
future.
In this step, only 64-bit architectures are changed, doing this rename
first lets us avoid touching the 32-bit architectures twice.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Commit 46011e6ea3 ("MIPS: Make set_pte() SMP safe.") introduced an
open-coded version of cmpxchg() within set_pte(), that always operated
on a value the size of an unsigned long. That is, it used ll/sc
instructions when CONFIG_32BIT=y or lld/scd instructions when
CONFIG_64BIT=y.
This was broken for configurations in which pte_t is larger than an
unsigned long (with the exception of XPA configurations which have a
different implementation of set_pte()), because we no longer update the
whole PTE. Indeed commit 46011e6ea3 ("MIPS: Make set_pte() SMP safe.")
notes:
> The case of CONFIG_64BIT_PHYS_ADDR && CONFIG_CPU_MIPS32 is *not*
> handled.
In practice this affects Netlogic XLR/XLS systems including
nlm_xlr_defconfig.
Commit 82f4f66ddf ("MIPS: Remove open-coded cmpxchg() in set_pte()")
then replaced this open-coded version of cmpxchg() with an actual call
to cmpxchg(). Unfortunately the configurations mentioned above then fail
to build because cmpxchg() can only operate on values 32 bits or smaller
in size, resulting in:
arch/mips/include/asm/cmpxchg.h:166:11: error:
call to '__cmpxchg_called_with_bad_pointer' declared with
attribute error: Bad argument size for cmpxchg
One option that would fix the build failure & restore the previous
behaviour would be to cast the pte pointer to a pointer to unsigned
long, so that cmpxchg() would operate on just 32 bits of the PTE as it
has been since commit 46011e6ea3 ("MIPS: Make set_pte() SMP safe.").
That feels like an ugly hack though, and the behaviour of set_pte() is
likely a little broken.
Instead we take advantage of the fact that the affected configurations
already know at compile time that the CPU will support 64 bits (ie. have
hardcoded cpu_has_64bits in cpu-feature-overrides.h) in order to allow
cmpxchg64() to be used in these configurations. set_pte() then makes use
of cmpxchg64() when necessary.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 46011e6ea3 ("MIPS: Make set_pte() SMP safe.")
Fixes: 82f4f66ddf ("MIPS: Remove open-coded cmpxchg() in set_pte()")
KVM makes use of check_switch_mmu_context(), check_mmu_context() &
get_new_mmu_context() which are no longer static inline functions in a
header. As such they need to be exported for KVM to successfully build
as a module, which was previously overlooked. Add the missing exports.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 4ebea49ce2 ("MIPS: mm: Un-inline get_new_mmu_context")
Fixes: 42d5b84657 ("MIPS: mm: Unify ASID version checks")
All users of the fixed_phy_add() pass -1 as GPIO number
to the fixed phy driver, and all users of fixed_phy_register()
pass -1 as GPIO number as well, except for the device
tree MDIO bus.
Any new users should create a proper device and pass the
GPIO as a descriptor associated with the device so delete
the GPIO argument from the calls and drop the code looking
requesting a GPIO in fixed_phy_add().
In fixed phy_register(), investigate the "fixed-link"
node and pick the GPIO descriptor from "link-gpios" if
this property exists. Move the corresponding code out
of of_mdio.c as the fixed phy code anyways requires
OF to be in use.
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Patch (b6c7a324df "MIPS: Fix get_frame_info() handling of
microMIPS function size.") introduces additional function size
check for microMIPS by only checking insn between ip and ip + func_size.
However, func_size in get_frame_info() is always 0 if KALLSYMS is not
enabled. This causes get_frame_info() to return immediately without
calculating correct frame_size, which in turn causes "Can't analyze
schedule() prologue" warning messages at boot time.
This patch removes func_size check, and let the frame_size check run
up to 128 insns for both MIPS and microMIPS.
Signed-off-by: Jun-Ru Chang <jrjang@realtek.com>
Signed-off-by: Tony Wu <tonywu@realtek.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: b6c7a324df ("MIPS: Fix get_frame_info() handling of microMIPS function size.")
Cc: <ralf@linux-mips.org>
Cc: <jhogan@kernel.org>
Cc: <macro@mips.com>
Cc: <yamada.masahiro@socionext.com>
Cc: <peterz@infradead.org>
Cc: <mingo@kernel.org>
Cc: <linux-mips@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>
Commit 7b3415f581 ("MIPS: Loongson32: Remove unused platform devices")
removed the definitions of platform devices which have no in tree
drivers from common Loongson32 code, but missed their removal from
Loongson 1B board code in arch/mips/loongson32/ls1b/board.c. This causes
build failures due to the missing declarations of ls1x_dma_pdev,
ls1x_nand_pdev & their associated *_set_platdata functions.
Remove the dead code from arch/mips/loongson32/ls1b/board.c to fix the
build.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 7b3415f581 ("MIPS: Loongson32: Remove unused platform devices")
Commit a96d68ba3b ("MIPS: Loongson32: clarify we don't support MIPS16
and merge configs") attempted to reduce duplication in Kconfig by
consolidating some selects common to Loongson 1B & 1C CPUs under
CPU_LOONGSON1. Unfortunately it clearly wasn't tested because by
removing SYS_SUPPORTS_32BIT_KERNEL it prevented 32BIT from being enabled
leading to all sorts of strange build errors from a kernel configured to
build as neither 32 nor 64 bit.
Both loongson1b_defconfig & loongson1c_defconfig failed to build due to
this problem.
Revert the cleanup portions of commit a96d68ba3b ("MIPS: Loongson32:
clarify we don't support MIPS16 and merge configs"), keeping only its
removal of the selection of SYS_SUPPORTS_MIPS16.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: a96d68ba3b ("MIPS: Loongson32: clarify we don't support MIPS16 and merge configs")
Commit f263f2a2c6 ("MIPS: Compile post DMA flush only when needed")
pushed the selection of ARCH_HAS_SYNC_DMA_FOR_CPU down to various
SYS_HAS_CPU_* Kconfig entries corresponding to CPUs for which
cpu_needs_post_dma_flush() might return true, but unfortunately missed
the fact that some of these CPUs can be used in configurations with
DMA_NONCOHERENT=n. When this is the case the kernel build does not
include our definition of arch_sync_dma_for_cpu() from
arch/mips/mm/dma-noncoherent.c and the build fails with a link error.
One example of this problem is ip27_defconfig:
kernel/dma/direct.o: In function `dma_direct_sync_single_for_cpu':
direct.c:(.text+0x6c): undefined reference to `arch_sync_dma_for_cpu'
kernel/dma/direct.o: In function `dma_direct_sync_sg_for_cpu':
direct.c:(.text+0x1f0): undefined reference to `arch_sync_dma_for_cpu'
kernel/dma/direct.o: In function `dma_direct_alloc':
direct.c:(.text+0xc20): undefined reference to `arch_dma_alloc'
kernel/dma/direct.o: In function `dma_direct_free':
direct.c:(.text+0xc3c): undefined reference to `arch_dma_free'
make[1]: *** [Makefile:1021: vmlinux] Error 1
make: *** [Makefile:152: sub-make] Error 2
Fix this by selecting ARCH_HAS_SYNC_DMA_FOR_CPU only when
DMA_NONCOHERENT is also selected. The SYS_HAS_CPU_BMIPS5000 case is left
as-is because systems with that CPU always select DMA_NONCOHERENT
anyway.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: f263f2a2c6 ("MIPS: Compile post DMA flush only when needed")
DTC introduced an i2c_bus_reg check in v1.4.7, used since Linux v4.20,
which complains about upper case addresses used in the unit name.
nexys4ddr.dts names an I2C device node "ad7420@4B", leading to:
arch/mips/boot/dts/xilfpga/nexys4ddr.dts:109.16-112.8: Warning
(i2c_bus_reg): /i2c@10A00000/ad7420@4B: I2C bus unit address format
error, expected "4b"
Fix this by switching to lower case addresses throughout the file, as is
*mostly* the case in the file already & fairly standard throughout the
tree.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: stable@vger.kernel.org # v4.20+
Cc: linux-mips@vger.kernel.org
Our hugepage support already exists for MIPS64 CPUs, and is already
enabled for older architecture revisions. There's nothing MIPSr6
specific involved, and our hugepage support already works fine for
MIPS64r6 CPUs such as the I6500, so allow it to be selected in Kconfig.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
set_pte() contains an open coded version of cmpxchg() - it atomically
replaces the buddy pte's value if it is currently zero. Simplify the
code considerably by just using cmpxchg() instead of reinventing it.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Introduce support for using MemoryMapIDs (MMIDs) as an alternative to
Address Space IDs (ASIDs). The major difference between the two is that
MMIDs are global - ie. an MMID uniquely identifies an address space
across all coherent CPUs. In contrast ASIDs are non-global per-CPU IDs,
wherein each address space is allocated a separate ASID for each CPU
upon which it is used. This global namespace allows a new GINVT
instruction be used to globally invalidate TLB entries associated with a
particular MMID across all coherent CPUs in the system, removing the
need for IPIs to invalidate entries with separate ASIDs on each CPU.
The allocation scheme used here is largely borrowed from arm64 (see
arch/arm64/mm/context.c). In essence we maintain a bitmap to track
available MMIDs, and MMIDs in active use at the time of a rollover to a
new MMID version are preserved in the new version. The allocation scheme
requires efficient 64 bit atomics in order to perform reasonably, so
this support depends upon CONFIG_GENERIC_ATOMIC64=n (ie. currently it
will only be included in MIPS64 kernels).
The first, and currently only, available CPU with support for MMIDs is
the MIPS I6500. This CPU supports 16 bit MMIDs, and so for now we cap
our MMIDs to 16 bits wide in order to prevent the bitmap growing to
absurd sizes if any future CPU does implement 32 bit MMIDs as the
architecture manuals suggest is recommended.
When MMIDs are in use we also make use of GINVT instruction which is
available due to the global nature of MMIDs. By executing a sequence of
GINVT & SYNC 0x14 instructions we can avoid the overhead of an IPI to
each remote CPU in many cases. One complication is that GINVT will
invalidate wired entries (in all cases apart from type 0, which targets
the entire TLB). In order to avoid GINVT invalidating any wired TLB
entries we set up, we make sure to create those entries using a reserved
MMID (0) that we never associate with any address space.
Also of note is that KVM will require further work in order to support
MMIDs & GINVT, since KVM is involved in allocating IDs for guests & in
configuring the MMU. That work is not part of this patch, so for now
when MMIDs are in use KVM is disabled.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Add a family of ginvt_* functions making it easy to emit a GINVT
instruction to globally invalidate TLB entries. We make use of the
_ASM_MACRO infrastructure to support emitting the instructions even if
the assembler isn't new enough to support them natively.
An associated STYPE_GINV definition & sync_ginv() function are added to
emit a sync instruction of type 0x14, which operates as a completion
barrier for these new GINVT (and GINVI) instructions.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
When we gain MMID support we'll be storing MMIDs as atomic64_t values
and accessing them via atomic64_* functions. This necessitates that we
don't use cpu_context() as the left hand side of an assignment, ie. as a
modifiable lvalue. In preparation for this introduce a new
set_cpu_context() function & replace all assignments with cpu_context()
on their left hand side with an equivalent call to set_cpu_context().
To enforce that cpu_context() should not be used for assignments, we
rewrite it as a static inline function.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Introduce a new check_mmu_context() function to check an mm's ASID
version & get a new one if it's outdated, and a
check_switch_mmu_context() function which additionally sets up the new
ASID & page directory. Simplify switch_mm() & various
get_new_mmu_context() callsites in MIPS KVM by making use of the new
functions, which will help reduce the amount of code that requires
modification to gain MMID support.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
In preparation for adding MMID support to get_new_mmu_context() which
will increase the size of the function somewhat, move it from
asm/mmu_context.h into a C file.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Split always-included objects to one per line in order to make it easier
to modify the list of included objects.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
All 3 variants of local_flush_tlb_mm() are now effectively simple calls
to drop_mmu_context(). Remove them and use drop_mmu_context() directly.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
The r4k variant of local_flush_tlb_mm() wraps its call to
drop_mmu_context() with a preempt_disable() & preempt_enable() pair, but
this is redundant since drop_mmu_context() disables interrupts and from
Documentation/preempt-locking.txt:
Note that you do not need to explicitly prevent preemption if you are
holding any locks or interrupts are disabled, since preemption is
implicitly disabled in those cases.
Remove the redundant preempt_disable() & preempt_enable() calls.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
drop_mmu_context() is preceded by a comment indicating what happens if
the mm provided is currently active on the local CPU. Move that comment
into the block that executes in this case, adjusting slightly to reflect
its new location.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
If an mm does not have an ASID on the local CPU then drop_mmu_context()
is always redundant, since there's no context to "drop". Various callers
of drop_mmu_context() check whether the mm has been allocated an ASID
before making the call. Move that check into drop_mmu_context() and
remove it from callers to simplify them.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
If drop_mmu_context() is called with an mm that is not currently active
on the local CPU then there's no need for us to stop & start a hardware
page table walker because it can't be fetching entries for the ASID
corresponding to the mm we're operating on.
Move the htw_stop() & htw_start() calls into the block which we run only
if the mm is currently active, in order to avoid the redundant work.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
get_new_mmu_context() accepts a cpu argument, but implicitly assumes
that this is always equal to smp_processor_id() by operating on the
local CPU's TLB & icache.
Remove the cpu argument and have get_new_mmu_context() call
smp_processor_id() instead.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
The drop_mmu_context() function accepts a cpu argument, but it
implicitly expects that this is always equal to smp_processor_id() by
allocating & configuring an ASID on the local CPU when the mm is active
on the CPU indicated by the cpu argument.
All callers do provide the value of smp_processor_id() to the cpu
argument.
Remove the redundant argument and have drop_mmu_context() call
smp_processor_id() itself, making it clearer that the cpu variable
always represents the local CPU.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
MIPS has separate definitions of activate_mm() & switch_mm() which are
identical apart from switch_mm() checking that the ASID is valid before
acquiring a new one.
We know that when activate_mm() is called cpu_context(X, mm) will be
zero, and this will never be considered a valid ASID because we never
allow the ASID version number to be zero, instead beginning with version
1 using asid_first_version(). Therefore switch_mm() will always allocate
a new ASID when called for a new task, meaning that it will behave
identically to activate_mm().
Take advantage of this to remove the duplication & define activate_mm()
using switch_mm() just like many other architectures do.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
On the Loongson-2G/2H/3A/3B there is a hardware flaw that ll/sc and
lld/scd is very weak ordering. We should add sync instructions "before
each ll/lld" and "at the branch-target between ll/sc" to workaround.
Otherwise, this flaw will cause deadlock occasionally (e.g. when doing
heavy load test with LTP).
Below is the explaination of CPU designer:
"For Loongson 3 family, when a memory access instruction (load, store,
or prefetch)'s executing occurs between the execution of LL and SC, the
success or failure of SC is not predictable. Although programmer would
not insert memory access instructions between LL and SC, the memory
instructions before LL in program-order, may dynamically executed
between the execution of LL/SC, so a memory fence (SYNC) is needed
before LL/LLD to avoid this situation.
Since Loongson-3A R2 (3A2000), we have improved our hardware design to
handle this case. But we later deduce a rarely circumstance that some
speculatively executed memory instructions due to branch misprediction
between LL/SC still fall into the above case, so a memory fence (SYNC)
at branch-target (if its target is not between LL/SC) is needed for
Loongson 3A1000, 3B1500, 3A2000 and 3A3000.
Our processor is continually evolving and we aim to to remove all these
workaround-SYNCs around LL/SC for new-come processor."
Here is an example:
Both cpu1 and cpu2 simutaneously run atomic_add by 1 on same atomic var,
this bug cause both 'sc' run by two cpus (in atomic_add) succeed at same
time('sc' return 1), and the variable is only *added by 1*, sometimes,
which is wrong and unacceptable(it should be added by 2).
Why disable fix-loongson3-llsc in compiler?
Because compiler fix will cause problems in kernel's __ex_table section.
This patch fix all the cases in kernel, but:
+. the fix at the end of futex_atomic_cmpxchg_inatomic is for branch-target
of 'bne', there other cases which smp_mb__before_llsc() and smp_llsc_mb() fix
the ll and branch-target coincidently such as atomic_sub_if_positive/
cmpxchg/xchg, just like this one.
+. Loongson 3 does support CONFIG_EDAC_ATOMIC_SCRUB, so no need to touch
edac.h
+. local_ops and cmpxchg_local should not be affected by this bug since
only the owner can write.
+. mips_atomic_set for syscall.c is deprecated and rarely used, just let
it go
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Huang Pei <huangpei@loongson.cn>
[paul.burton@mips.com:
- Simplify the addition of -mno-fix-loongson3-llsc to cflags, and add
a comment describing why it's there.
- Make loongson_llsc_mb() a no-op when
CONFIG_CPU_LOONGSON3_WORKAROUNDS=n, rather than a compiler memory
barrier.
- Add a comment describing the bug & how loongson_llsc_mb() helps
in asm/barrier.h.]
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: ambrosehua@gmail.com
Cc: Steven J . Hill <Steven.Hill@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: Li Xuefeng <lixuefeng@loongson.cn>
Cc: Xu Chenghua <xuchenghua@loongson.cn>
SO_RCVTIMEO and SO_SNDTIMEO socket options use struct timeval
as the time format. struct timeval is not y2038 safe.
The subsequent patches in the series add support for new socket
timeout options with _NEW suffix that will use y2038 safe
data structures. Although the existing struct timeval layout
is sufficiently wide to represent timeouts, because of the way
libc will interpret time_t based on user defined flag, these
new flags provide a way of having a structure that is the same
for all architectures consistently.
Rename the existing options with _OLD suffix forms so that the
right option is enabled for userspace applications according
to the architecture and time_t definition of libc.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Cc: ccaulfie@redhat.com
Cc: deller@gmx.de
Cc: paulus@samba.org
Cc: ralf@linux-mips.org
Cc: rth@twiddle.net
Cc: cluster-devel@redhat.com
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-alpha@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
When generating vdso-o32.lds & vdso-n32.lds for use with programs
running as compat ABIs under 64b kernels, we previously haven't included
the compiler flags that are supposedly common to all ABIs - ie. those in
the ccflags-vdso variable.
This is problematic in cases where we need to provide the -m%-float flag
in order to ensure that we don't attempt to use a floating point ABI
that's incompatible with the target CPU & ABI. For example a toolchain
using current gcc trunk configured --with-fp-32=xx fails to build a
64r6el_defconfig kernel with the following error:
cc1: error: '-march=mips1' requires '-mfp32'
make[2]: *** [arch/mips/vdso/Makefile:135: arch/mips/vdso/vdso-o32.lds] Error 1
Include $(ccflags-vdso) for the compat VDSO .lds builds, just as it is
included for the native VDSO .lds & when compiling objects for the
compat VDSOs. This ensures we consistently provide the -msoft-float flag
amongst others, avoiding the problem by ensuring we're agnostic to the
toolchain defaults.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: ebb5e78cc6 ("MIPS: Initial implementation of a VDSO")
Cc: linux-mips@vger.kernel.org
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Maciej W . Rozycki <macro@linux-mips.org>
Cc: stable@vger.kernel.org # v4.4+
The MIPS VDSO build currently doesn't provide the -msoft-float flag to
the compiler as the kernel proper does. This results in an attempt to
use the compiler's default floating point configuration, which can be
problematic in cases where this is incompatible with the target CPU's
-march= flag. For example decstation_defconfig fails to build using
toolchains in which gcc was configured --with-fp-32=xx with the
following error:
LDS arch/mips/vdso/vdso.lds
cc1: error: '-march=r3000' requires '-mfp32'
make[2]: *** [scripts/Makefile.build:379: arch/mips/vdso/vdso.lds] Error 1
The kernel proper avoids this error because we build with the
-msoft-float compiler flag, rather than using the compiler's default.
Pass this flag through to the VDSO build so that it too becomes agnostic
to the toolchain's floating point configuration.
Note that this is filtered out from KBUILD_CFLAGS rather than simply
always using -msoft-float such that if we switch the kernel to use
-mno-float in the future the VDSO will automatically inherit the change.
The VDSO doesn't actually include any floating point code, and its
.MIPS.abiflags section is already manually generated to specify that
it's compatible with any floating point ABI. As such this change should
have no effect on the resulting VDSO, apart from fixing the build
failure for affected toolchains.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reported-by: Kevin Hilman <khilman@baylibre.com>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Kevin Hilman <khilman@baylibre.com>
References: https://lore.kernel.org/linux-mips/1477843551-21813-1-git-send-email-linux@roeck-us.net/
References: https://kernelci.org/build/id/5c4e4ae059b5142a249ad004/logs/
Fixes: ebb5e78cc6 ("MIPS: Initial implementation of a VDSO")
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@vger.kernel.org
Cc: stable@vger.kernel.org # v4.4+
Don't set octeon_dma_bar_type if PCI is disabled. This avoids creation
of the MSI irqchip later on, and saves a bit of memory.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: a214720cbf ("Disable MSI also when pcie-octeon.pcie_disable on")
Cc: stable@vger.kernel.org # v3.3+
Cc: linux-mips@vger.kernel.org
SMI/MDIO enable is handled by the OCTEON MDIO driver, so we can delete
the duplicated functionality from the platform code.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
In Kbuild, if_changed and friends must have FORCE as a prerequisite.
Hence, $(filter-out FORCE,$^) or $(filter-out $(PHONY),$^) is a common
idiom to get the names of all the prerequisites except phony targets.
Add real-prereqs as a shorthand.
Note:
We cannot replace $(filter %.o,$^) in cmd_link_multi-m because $^ may
include auto-generated dependencies from the .*.cmd file when a single
object module is changed into a multi object module. Refer to commit
69ea912fda ("kbuild: remove unneeded link_multi_deps"). I added some
comment to avoid accidental breakage.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Rob Herring <robh@kernel.org>
The interrupt number set in the devicetree node of the DMA driver was
wrong.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
The IPC system call handling is highly inconsistent across architectures,
some use sys_ipc, some use separate calls, and some use both. We also
have some architectures that require passing IPC_64 in the flags, and
others that set it implicitly.
For the addition of a y2038 safe semtimedop() system call, I chose to only
support the separate entry points, but that requires first supporting
the regular ones with their own syscall numbers.
The IPC_64 is now implied by the new semctl/shmctl/msgctl system
calls even on the architectures that require passing it with the ipc()
multiplexer.
I'm not adding the new semtimedop() or semop() on 32-bit architectures,
those will get implemented using the new semtimedop_time64() version
that gets added along with the other time64 calls.
Three 64-bit architectures (powerpc, s390 and sparc) get semtimedop().
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
The behavior of these system calls is slightly different between
architectures, as determined by the CONFIG_ARCH_WANT_IPC_PARSE_VERSION
symbol. Most architectures that implement the split IPC syscalls don't set
that symbol and only get the modern version, but alpha, arm, microblaze,
mips-n32, mips-n64 and xtensa expect the caller to pass the IPC_64 flag.
For the architectures that so far only implement sys_ipc(), i.e. m68k,
mips-o32, powerpc, s390, sh, sparc, and x86-32, we want the new behavior
when adding the split syscalls, so we need to distinguish between the
two groups of architectures.
The method I picked for this distinction is to have a separate system call
entry point: sys_old_*ctl() now uses ipc_parse_version, while sys_*ctl()
does not. The system call tables of the five architectures are changed
accordingly.
As an additional benefit, we no longer need the configuration specific
definition for ipc_parse_version(), it always does the same thing now,
but simply won't get called on architectures with the modern interface.
A small downside is that on architectures that do set
ARCH_WANT_IPC_PARSE_VERSION, we now have an extra set of entry points
that are never called. They only add a few bytes of bloat, so it seems
better to keep them compared to adding yet another Kconfig symbol.
I considered adding new syscall numbers for the IPC_64 variants for
consistency, but decided against that for now.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
In order to have a common code base for fscrypt "post read" processing
for all filesystems which support encryption, this commit removes
filesystem specific build config option (e.g. CONFIG_EXT4_FS_ENCRYPTION)
and replaces it with a build option (i.e. CONFIG_FS_ENCRYPTION) whose
value affects all the filesystems making use of fscrypt.
Reviewed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
This line is weird in multiple ways.
(CONFIG_GENERIC_CSUM) might be a typo of $(CONFIG_GENERIC_CSUM).
Even if you add '$' to it, $(CONFIG_GENERIC_CSUM) is never evaluated
to 'y' because scripts/Makefile.asm-generic does not include
include/config/auto.conf. So, the asm-generic wrapper of checksum.h
is never generated.
Even if you manage to generate it, it is never included by anyone
because MIPS has the checkin header with the same file name:
arch/mips/include/asm/checksum.h
As you see in the top Makefile, the checkin headers are included before
generated ones.
LINUXINCLUDE := \
-I$(srctree)/arch/$(SRCARCH)/include \
-I$(objtree)/arch/$(SRCARCH)/include/generated \
...
Commit 4e0748f5be ("MIPS: Use generic checksum functions for MIPS R6")
already added the asm-generic fallback code in the checkin header:
#ifdef CONFIG_GENERIC_CSUM
#include <asm/generic/checksum.h>
#else
...
#endif
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-kernel@vger.kernel.org
GS232 core have implemented all necessary mips32r2 instructions.
Serval missing FP instructions can be emulated by kernel.
The issue of di instruction have been solved.
Thus we revert the ISA level back to MIPS32R2.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: keguang.zhang@gmail.com
GS232 core used in Loongson-1 processors has a bug that
di instruction doesn't save the irqflag immediately.
Workaround by set irqflag in CP0 before di instructions
as same as Loongson-3.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: keguang.zhang@gmail.com
PMON bootloader on Loongson-1C will use memory between
0x80100000 and 0x80200000 as stack.
Use 0x80100000 as load address may hang the bootloader
during loading.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: keguang.zhang@gmail.com
Accorading to GS232 core user's manual, it doesn't support MIPS16.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: keguang.zhang@gmail.com
With the target now being fully OF based, we can drop the legacy clock
registration code. All clocks are now probed via devicetree.
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Felix Fietkau <nbd@nbd.name>
With the target now being fully OF based, we can drop the legacy platform
device registration code. All devices and their drivers are now probed
via OF.
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Felix Fietkau <nbd@nbd.name>
With the target now being fully OF based, we can drop the legacy pci
platform code. The only bits that we need to keep is the fixup code
which we move to its own code file.
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Felix Fietkau <nbd@nbd.name>
With the target now being fully OF based, we can drop the legacy mach
files. Boards can now boot fully of devicetree files.
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Felix Fietkau <nbd@nbd.name>
With the target now being fully OF based, we can drop the legacy IRQ code.
All IRQs are now handled via the new irqchip drivers.
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: Felix Fietkau <nbd@nbd.name>
On AR934x, the MDIO reference clock can be configured to a fixed 100 MHz
clock. If that feature is not used, it defaults to the main reference
clock, like on all other SoC.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Use the same functions as the legacy code
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
It can be autodetected for many SoCs using the strapping options.
If the clock is specified in DT, the autodetected value is ignored
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Preparation for passing the mapped base via DT
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Preparation for transitioning the legacy clock setup code over
to OF.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: John Crispin <john@phrozen.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
platform.c contains several unused platform device with no
drivers submited.
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: keguang.zhang@gmail.com
When calling debugfs functions, there is no need to ever check the
return value. The function can work or not, but the code logic should
never do something different based on this.
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Yangtao Li <tiny.windzz@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mike Rapoport <rppt@linux.vnet.ibm.com>
Cc: Mathieu Malaterre <malat@debian.org>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Marcin Nowakowski <marcin.nowakowski@mips.com>
Cc: Yasha Cherikovsky <yasha.che3@gmail.com>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
When calling debugfs functions, there is no need to ever check the
return value. The function can work or not, but the code logic should
never do something different based on this.
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Yangtao Li <tiny.windzz@gmail.com>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Christophe JAILLET