Commit Graph

90390 Commits

Author SHA1 Message Date
Leonid Yegoshin 76f59e329c MIPS: Add processor identifiers for the proAptiv processors
Add processor identifiers for single core and multi-core
proAptiv processors.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6133/
2014-01-22 20:18:59 +01:00
Leonid Yegoshin 6e7f8b8e47 MIPS: tlb: Set the EHINV bit for TLBINVF cores when invalidating the TLB
For MIPS32R3 supported cores, the EHINV bit needs to be set when
invalidating the TLB. This is necessary because the legacy software
method of representing an invalid TLB entry using an unmapped address
value is not guaranteed to work.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6132/
2014-01-22 20:18:59 +01:00
Steven J. Hill 4a0156fbfb MIPS: features: Add initial support for Segmentation Control registers
MIPS32R3 introduced a new set of Segmentation Control registers which
increase the flexibility of the segmented-based memory scheme.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6131/
2014-01-22 20:18:58 +01:00
Leonid Yegoshin 1745c1ef88 MIPS: features: Add initial support for TLBINVF capable cores
New Aptiv cores support the TLBINVF instruction for flushing
the VTLB.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6130/
2014-01-22 20:18:58 +01:00
Markos Chandras c01905eeee MIPS: mm: Move UNIQUE_ENTRYHI macro to a header file
The UNIQUE_ENTRYHI definition was duplicated whenever there
was the need to flush the TLB entries. We move this common
definition to a header file.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6129/
2014-01-22 20:18:58 +01:00
Leonid Yegoshin 691038ba45 MIPS: Add missing bits for Config registers
Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6128/
2014-01-22 20:18:58 +01:00
Markos Chandras 795038a691 MIPS: MT: proc: Add support for printing VPE and TC ids
Add support for including VPE and TC ids in /proc/cpuinfo output as
appropriate when MT/SMTC is enabled.

Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6065/
2014-01-22 20:18:57 +01:00
Leonid Yegoshin f6ba061060 MIPS: Malta: Remove ttyS2 serial for CMP platforms
Commit 225ae5fd9a
"MIPS: Malta: Fix interupt number of CBUS UART"

fixed the IRQ number for the ttyS2 CBUS UART. However, this now
conflicts with the GIC IPI1 interrupt in CMP platforms. The Malta
interrupt code arbitrarily binds IPIs to INT2 and INT3 and since
ttyS2 uses the INT2 IRQ line, closing the device disables the
INT2 interrupt and this effectively disables the IPI1 interrupt
as well. This patch is mainly a workaround until the Malta code
is fixed properly.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6045/
2014-01-22 20:18:57 +01:00
Leonid Yegoshin 6de2045185 MIPS: Add printing of ES bit for Imgtec cores when cache error occurs.
The cacheer register is always implemented in the same way in the
MIPS32r2 Imgtec cores so print the ES bit when an cache error
occurs.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6041/
2014-01-22 20:18:57 +01:00
Steven J. Hill 5cf8b2409c MIPS: GIC: Send IPIs using the GIC
If GIC is present, then use it to send IPIs between the cores.
Using GIC for IPIs is simpler and is usable for multicore
systems compared to the existing way of doing IPIs where all VPEs
had to be disabled for another VPE to access the Cause register
in one of the TCs and enable all the VPEs back.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6040/
2014-01-22 20:18:57 +01:00
Markos Chandras c2c2a64493 MIPS: MT: Mark existing TCs as present
According to Documentation/cpu-hotplug.txt, the cpu_present_mask should
contain all the CPUs which are present in the system. Therefore, all the TCs
currently present in the system should be marked as 'present' even if they
will never be brought online.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6039/
2014-01-22 20:18:56 +01:00
Markos Chandras 175cba8c74 MIPS: mm: c-r4k: Panic if IL or DL fields have a reserved value
According to MIPS32 and MIPS64 PRA documents,
a value of 7 in IL and DL fields is marked as "Reserved"
so panic if the core uses this value in the config1 register.
Also simplify the code a little bit.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5861/
2014-01-22 20:18:56 +01:00
Markos Chandras 40149889ce MIPS: kernel: smp-cmp: MIPS MT code needs CONFIG_MIPS_MT
The mips_mt_* symbols are only built and exported if
CONFIG_MIPS_MT is enabled.

Fixes the following build problem when CONFIG_SMP is enabled
but CONFIG_MIPS_MT is not.

arch/mips/built-in.o: In function `cmp_prepare_cpus':
arch/mips/kernel/smp-cmp.c:197:
undefined reference to `mips_mt_set_cpuoptions'

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5860/
2014-01-22 20:18:56 +01:00
Ilia Mirkin 710d86f8bc MIPS: BCM47XX: Fix some very confused types and data corruption
Fix nvram_read_alpha2 copying too many bytes over the ssb_sprom
structure. Also fix the arguments of the read_macaddr, although the code
was technically not wrong before due to an extra dereference.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6211/
2014-01-22 20:18:56 +01:00
Hauke Mehrtens 0ded1becc8 MIPS: BCM47XX: add vectored interrupt support
This adds support for vectored interrupt which is supported by the SoC
using a MIPS 74K CPU like the BCM4716 and BCM4706.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6290/
2014-01-22 20:18:56 +01:00
Hauke Mehrtens d775c966c0 MIPS: BCM47XX: add cpu-feature-overrides.h
The BCM47XX SoC code missed a cpu-feature-overrides.h header file, this
patch adds it. This code supports a long line of SoCs with different
features so for some features we still have to rely on the runtime
detection.

This was crated by checking the features of a BCM4712, BCM4704,
BCM5354, BCM4716 and BCM4706 SoC and then tested on these SoCs. There
are some SoCs missing but I hope they do not have any more or less
features.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6289/
2014-01-22 20:18:55 +01:00
Hauke Mehrtens f4c4d589d5 MIPS: BCM47XX: move constant array from stack
Move the possible nvram sizes from the stack into the data segment

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6044/
2014-01-22 20:18:55 +01:00
Hauke Mehrtens 69733c9b0b MIPS: BCM47XX: add asmlinkage to plat_irq_dispatch()
plat_irq_dispatch() is called from asm code, add asmlinkage.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6043/
2014-01-22 20:18:55 +01:00
Hauke Mehrtens 484e20acbb MIPS: BCM47XX: update defconfig
The defconfig for bcm47xx contained lots of driver which are not
special for these SoCs and missed on the other side some some drivers
for parts essential for these SoC and only found on here. The flash,
usb and some Ethernet driver were missing.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5930/
2014-01-22 20:18:55 +01:00
Hauke Mehrtens e1ccbb6549 MIPS: BCM47XX: add EARLY_PRINTK_8250 support
The BCM47xx SoCs have a 8250 serial compatible console at address
0x18000300 and an other at 0x18000400. On most devices 0x18000300 is
wired to some pins on the board, we should use that.
This is the smae for the AI (bcma) and the SB (ssb) bus, this is some
offset on the chip common core.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5889/
2014-01-22 20:18:54 +01:00
Hauke Mehrtens cb881f5e15 MIPS: BCM47XX: Remove CFE support
bcm47xx only uses the CFE code for early print to a console, but that
is also possible with a early print serial 8250 driver.

The CFE api init causes hangs somewhere in prom_init_cfe() on some
devices like the Buffalo WHR-HP-G54 and the Asus WL-520GU.
This was reported in https://dev.openwrt.org/ticket/4061 and
https://forum.openwrt.org/viewtopic.php?id=17063

This will remove all the CFE handling code from bcm47xx.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5888/
2014-01-22 20:18:54 +01:00
Hauke Mehrtens dd5732850e MIPS: BCM47XX: only print SoC name in system type in cpuinfo
Recently the output of "system type" in  /proc/cpuinfo was changed to
Broadcom BCM4730 (Some sample board), but it is better to just print
the SoC name in the "system type" entry. The board name will be added
in the machine entry later.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5865/
2014-01-22 20:18:54 +01:00
Jonas Gorski 3a705ab184 MIPS: BCM63XX: drop SYS_HAS_CPU_MIPS32R1
All MIPS cores on BCM63XX identify as Broadcom, not MIPS, so no need
to support non-broadcom MIPS CPUs. This also ensures that CPU_BMIPS
is always selected.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6246/
2014-01-22 20:18:54 +01:00
Jonas Gorski baaac02e9d MIPS: cpu-type: guard BMIPS variants with SYS_HAS_CPU_BMIPS*
BMIPS32 and  BMIPS3300 also need to be available for MIPS32R1, as
bcm47xx might not select BMIPS.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6245/
2014-01-22 20:18:54 +01:00
Jonas Gorski 75d5f4292d MIPS: BCM47XX: select BMIPS CPUs for BCM47XX_SSB
Let BCM47XX_SSB select the appropriate BMIPS CPUs enountered on those
systems.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6244/
2014-01-22 20:18:53 +01:00
Jonas Gorski 68ac1d6577 MIPS: BCM63XX: let the individual SoCs select the appropriate CPUs
Let each supported chip select the appropirate SYS_HAS_CPU_BMIPS*
option for its embedded processor, so support will be conditionally
included.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6250/
2014-01-22 20:18:53 +01:00
Jonas Gorski 1010269280 MIPS: BCM63XX: always register bmips smp ops
Use the return value for guarding further SMP setup.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6249/
2014-01-22 20:18:53 +01:00
Jonas Gorski 04fa8bf7c0 MIPS: BMIPS: add a smp ops registration helper
Add a helper similar to the generic register_XXX_smp_ops() for bmips.
Register SMP UP ops in case of BMIPS32/3300.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6248/
2014-01-22 20:18:52 +01:00
Jonas Gorski fe7f62c0c2 MIPS: BMIPS: extend BMIPS3300 to include BMIPS32
Codewise there is no difference between these two, so it does not make
sense to treat them differently. Also chip families having one of these
tend to have the other.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6247/
2014-01-22 20:18:52 +01:00
Jonas Gorski 69aaf9c813 MIPS: BMIPS: select CPU_HAS_PREFETCH
As they are MIPS32 CPUs they do support the prefetch opcode.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6243/
2014-01-22 20:18:52 +01:00
Jonas Gorski 561835494c MIPS: BMIPS: select CPU_SUPPORTS_HIGHMEM
All BMIPS CPUs support HIGHMEM, so it should be selected by CPU_BMIPS.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6242/
2014-01-22 20:18:51 +01:00
Jonas Gorski cd746249b7 MIPS: BMIPS: merge CPU options into one option
Instead of treating each flavour as an exclusive CPU to select, make
BMIPS the only option and let SYS_HAS_CPU_BMIPS* decide for which
flavours to include support.

Run tested on BMIPS3300 and BMIPS4350, only build tested for BMIPS4380
and BMIPS5000.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6240/
2014-01-22 20:18:51 +01:00
Jonas Gorski 6465460c92 MIPS: BMIPS: change compile time checks to runtime checks
Allow building for all bmips cpus at the same time by changing ifdefs
to checks for the cpu type, or adding appropriate checks to the
assembly.

Since BMIPS43XX and BMIPS5000 require different IPI implementations,
split the SMP ops into one for each, so the runtime overhead is only
at registration time for them.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6241/
2014-01-22 20:18:51 +01:00
Jonas Gorski 68248d0c86 MIPS: allow asm/cpu.h to be included from assembly
Add guards around the enum to allow including cpu.h from assembly.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6238/
2014-01-22 20:18:50 +01:00
Jonas Gorski 0e983d7b90 MIPS: BCM63XX: disable SMP also on BCM3368
BCM3368 has the same shared TLB as BCM6358.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6239/
2014-01-22 20:18:50 +01:00
Jonas Gorski 83bb90fa1b MIPS: BCM63XX: add HSSPI platform device and register it
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6180/
2014-01-22 20:18:50 +01:00
Jonas Gorski fd034a1aae MIPS: BCM63XX: add HSSPI IRQ and register offsets
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6179/
2014-01-22 20:18:50 +01:00
Jonas Gorski 26b8c07f59 MIPS: BCM63XX: setup the HSSPI clock rate
Properly set up the HSSPI clock rate depending on the SoC's PLL rate.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6177/
2014-01-22 20:18:49 +01:00
Jonas Gorski 0ebe8aaefa MIPS: BCM63XX: expose the HSSPI clock
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6178/
2014-01-22 20:18:49 +01:00
Paul Burton 597ce1723e MIPS: Support for 64-bit FP with O32 binaries
CPUs implementing MIPS32 R2 may include a 64-bit FPU, just as MIPS64 CPUs
do. In order to preserve backwards compatibility a 64-bit FPU will act
like a 32-bit FPU (by accessing doubles from the least significant 32
bits of an even-odd pair of FP registers) when the Status.FR bit is
zero, again just like a mips64 CPU. The standard O32 ABI is defined
expecting a 32-bit FPU, however recent toolchains support use of a
64-bit FPU from an O32 MIPS32 executable. When an ELF executable is
built to use a 64-bit FPU a new flag (EF_MIPS_FP64) is set in the ELF
header.

With this patch the kernel will check the EF_MIPS_FP64 flag when
executing an O32 binary, and set Status.FR accordingly. The addition
of O32 64-bit FP support lessens the opportunity for optimisation in
the FPU emulator, so a CONFIG_MIPS_O32_FP64_SUPPORT Kconfig option is
introduced to allow this support to be disabled for those that don't
require it.

Inspired by an earlier patch by Leonid Yegoshin, but implemented more
cleanly & correctly.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Paul Burton <paul.burton@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/6154/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-01-13 23:40:56 +01:00
Paul Burton 56a22d21bf MIPS: Remove unused {en,dis}able_fpu macros
These macros are not used anywhere in the kernel. Remove them.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6111/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-01-13 23:40:56 +01:00
Steven J. Hill 9355e59c33 MIPS: microMIPS: mfhc1 & mthc1 support for the FPU emulator
This patch adds support for microMIPS encodings of the mfhc1 & mthc1
instructions introduced in release 2 of the mips32 & mips64
architectures, converting them to their mips32 equivalents for the FPU
emulator.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6110/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-01-13 23:40:55 +01:00
Leonid Yegoshin 1ac944007b MIPS: math-emu: Add mfhc1 & mthc1 support.
This patch adds support for the mfhc1 & mthc1 instructions to the FPU
emulator. These instructions were introduced in release 2 of the MIPS32
& MIPS64 architectures and allow access to the most significant 32 bits
of a 64-bit FP register.

[ralf@linux-mips.org: Fix ifdef hell added by original patch.]

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6112/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-01-13 23:40:55 +01:00
Linus Torvalds 21e20e22d4 Late fixes for clock drivers. All of these fixes are for user-visible
regressions, typically boot failures or other unsafe system
 configuration that causes badness.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.14 (GNU/Linux)
 
 iQIcBAABAgAGBQJSz5HsAAoJEDqPOy9afJhJYCcP/RgFkHD39l28dCUlxAZK1S1b
 loyQn9OhpTDkMqcRNiv71dMm7y0Z28Qvf3CHPaZmkddstd351Agdz4mPTIOpbutQ
 /THb0mAU7kufYkFUXq8+fDOcgkERMsQysIWAYV/vlCBDMPd+1j6z15E3A9jNC0Ap
 q1o8KgmAbxDcsqltZmdlT+He7XsJiRSuyS+YFfNvtSm6MJ1qtuqiAumf9/DSBgFg
 0aj+ADWS2mWiw50LOOaVVKKjKYKaO/DPq2gYz2Tz8C49rQfstMnOmjMWqIPGRpiZ
 YPCDzAiutI8H+SXBaetkgIJn/MiVS2rnNPXfMHmCgWoO3Xi0PCq9+Vg7cTuvNSRl
 HeMCnEsBcU9N2DfaZkom2OVU6XQXUkOM/jLIuTBGf7IKdLALSXy+w22NknRd0WKv
 VKdie6GBmV5KwAeytDETdSxSQNuxIxLUfILd5+Y5kl1cFDUCsSxBDGD+01EbqS6B
 Q/FkoS3EMvQvvFeGopCEje8fv87JvTrviJ7Mkj8xpJZGCWW7FTpsgTS0mP2ifDTX
 RpjTGhcho0LbD4Hu3E58Kykc7LBO5LH5vnPHpMPj7KQxC/4gFVwdWHWgRFKI2pEr
 B6zSl0W5j7cSR0mADH4MWuqQh8T2zbKgP4pcNJ878V3hGhBktcxure1VGcIr/yj9
 U+FKg/lBoKUvVBDUnajQ
 =iLBN
 -----END PGP SIGNATURE-----

Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux

Pull clock fixes from Mike Turquette:
 "Late fixes for clock drivers.  All of these fixes are for user-visible
  regressions, typically boot failures or other unsafe system
  configuration that causes badness"

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux:
  clk: clk-divider: fix divisor > 255 bug
  clk: exynos: File scope reg_save array should depend on PM_SLEEP
  clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock
  ARM: dts: exynos5250: Fix MDMA0 clock number
  clk: samsung: exynos5250: Add MDMA0 clocks
  clk: samsung: exynos5250: Fix ACP gate register offset
  clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
  clk: samsung: exynos4: Correct SRC_MFC register
2014-01-10 15:57:23 +07:00
Linus Torvalds 2aa63ce000 ARM: SoC fixes for 3.13-rc
Hopefully the last set of arm-soc fixes for 3.13, or at least only a
 few stray patches after this.
 
 There are a few fixes for Renesas platforms to fixup DMA masks (this
 started causing errors once the DMA API added checks for valid masks in
 3.13). Two more dealing with resources for MMC and PWM setup.
 
 There's also a few TI/OMAP/DRA fixes for smaller stuff and a fix for
 compilation failures on a PXA platform.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJSzmLqAAoJEIwa5zzehBx3AIMP/i/Br36+IPTft/v6EN1dON3p
 RXLTSh5bAO7uS5lEd7osRKvFGAM7kk7V1xwpixJaweiDBhJYgCC08fLQsmXr2ktL
 uQZsWNqPzvNOUib8qmJSeYjuu4Otr+4KOS1FNhPmLJppnnZCnF0SsCaOTT/UZiV1
 dgwB3JwRZvSE+twqbeL6LDHdh3qF3Kp85IeeFMZjvRAlAtwwwK4zBc0mbAHUUYs9
 +h18T1iaJ+/j/5MQDVED6sJOWH4+cNh/DIvvWKGKe1z56Ji6wuMmrAFAhSiyeVNA
 sxRXgtaqeegXu/LQkxTeFI4PYOzU/LGXPuO6lDqKJ8h5/YfHoxdiAnkxA1WFrq6z
 sB4mc2A6WPKu13HbjqZOeVkFSZTL6lZDlLEP4f6mTDoHW5kJ6X7WabCBJswLpi9c
 d5PvAu+jYF20OXks2ctnsITHk5xcYXMK1VSNiv6z7Dff63x7Lh078bkns5E1YLqs
 vhkmZRGBWSsofFvyobNFKOsVvIW4Z6CGOiwW8RkQr6nlYzzoytnMU8E4yOUeXFRJ
 c4veMRPn4pgNkbRXdxvUXmRado6hs53YFcRWYXX3fuFTC5x8KTjR2hxLm6J+Ca/m
 2d9EFbBZQB1oZoHT6n/ghZCRIBjgVkbaaxNrdoMozF/ryOOj9ujj0xTB5dRoiX21
 0Fhq/UVUxj0i5XWLgxQA
 =edy8
 -----END PGP SIGNATURE-----

Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes for Renesas platforms to fixup DMA masks (this started
  causing errors once the DMA API added checks for valid masks in 3.13)"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: shmobile: mackerel: Fix coherent DMA mask
  ARM: shmobile: kzm9g: Fix coherent DMA mask
  ARM: shmobile: armadillo: Fix coherent DMA mask
2014-01-10 15:54:49 +07:00
John David Anglin f8dae00684 parisc: Ensure full cache coherency for kmap/kunmap
Helge Deller noted a few weeks ago problems with the AIO support on
parisc. This change is the result of numerous iterations on how best to
deal with this problem.

The solution adopted here is to provide full cache coherency in a
uniform manner on all parisc systems. This involves calling
flush_dcache_page() on kmap operations and flush_kernel_dcache_page() on
kunmap operations. As a result, the copy_user_page() and
clear_user_page() functions can be removed and the overall code is
simpler.

The change ensures that both userspace and kernel aliases to a mapped
page are invalidated and flushed. This is necessary for the correct
operation of PA8800 and PA8900 based systems which do not support
inequivalent aliases.

With this change, I have observed no cache related issues on c8000 and
rp3440. It is now possible for example to do kernel builds with "-j64"
on four way systems.

On systems using XFS file systems, the patch recently posted by Mikulas
Patocka to "fix crash using XFS on loopback" is needed to avoid a hang
caused by an uninitialized lock passed to flush_dcache_page() in the
page struct.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: Helge Deller <deller@gmx.de>
2014-01-08 23:02:57 +01:00
Mike Turquette 497d2214e5 Samsung Clock fixes for 3.13-rc7
* Several patches fixing up incorrectly defined register addresses and
   bitfield offsets that could lead to undefined operation when accessing
   respective registers or bitfields.
 
  1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks
 
  2a) clk: samsung: exynos5250: Fix ACP gate register offset
  2b) clk: samsung: exynos5250: Add MDMA0 clocks
  2c) ARM: dts: exynos5250: Fix MDMA0 clock number
 
  3) clk: samsung: exynos4: Correct SRC_MFC register
 
    All three issues have been present since Exynos5250 and Exynos4 clock
    drivers were added by commits 6e3ad26816 ("clk: exynos5250:
    register clocks using common clock framework") and e062b57177
    ("clk: exynos4: register clocks using common clock framework")
    respectively.
 
 * Patch to fix automatic disabling of Exynos5250 sysreg clock that could
   cause undefined operation of several peripherals, such as USB, I2C,
   MIPI or display block.
 
  4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
     clock
 
    Present since Exynos5250 clock drivers was added by commits
    6e3ad26816 ("clk: exynos5250: register clocks using common clock
    framework").
 
 * Patch fixing compilation warning in clk-exynos-audss driver when
   CONFIG_PM_SLEEP is disabled.
 
  5) clk: exynos: File scope reg_save array should depend on PM_SLEEP
 
    Present since the driver was added by commit 1241ef94cc ("clk:
    samsung: register audio subsystem clocks using common clock
    framework").
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJSxY6TAAoJEIv3Hb8G/XruUcgP/001H5qqDZWtEk2Z1XvOUPgF
 MfFprrNcPpLhLmBnvDpR5mUrcMIp4t/4GcWClmX58zcsZfcQP5YF81oGGiQy+U13
 Yu94H+sWihrms5h8GSkqEhB5YSvcIOfs4rtAeNl/g2su7i+l4loF/xofXpj09+qp
 xnmKJ8yfB5RD822StgrkoMu7vxzYyK05j8IasSH54vsO9X3Z3jTWuAKdQFKZoZp4
 xBGjtIwoyyHndWAlhl1nIj1dvaDgx+gF25qRUrfShfE51R4BNzmvpgiN1mpQTjCl
 JpYDJqZ1h7FL883ZXiz7SfRVv4H2GaEWqz+zxgVfHkO45lIL3Eyn1zhSKas4pRFH
 KZscKBvT/YEgIQjBW4+VdMuMM0NWIzvYp1BM2/l88KvUgXYiS0EOM5UjYJatKwIO
 MW4ZLpIsMiJlN8OygBTaZOZQaY8rbbdVn5KFsgkL0zl7uZzmbYCqhxKrXZfTKyx/
 ieEGRmqjrcuguVDPNSsd9TZ/LUm3kTCSzpr3gvAXjK+29DbVrs6fX1lQ0RCxvACQ
 8gBjD6ZsVFcsGSbWbPEoDi+qtKielZBjbSrgTDNkRqE/6yqg+UUZVSJJ6kkEA14o
 swE+8mGrUhdv5TvpTjJactnBZeUpFbmLm4TE/r695dfwcr6wX7cK41gMVo7bE9fk
 2rYzz35ed29q8OfJI/54
 =0B0x
 -----END PGP SIGNATURE-----

Merge tag 'samsung-clk-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-fixes

Samsung Clock fixes for 3.13-rc7

* Several patches fixing up incorrectly defined register addresses and
  bitfield offsets that could lead to undefined operation when accessing
  respective registers or bitfields.

 1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks

 2a) clk: samsung: exynos5250: Fix ACP gate register offset
 2b) clk: samsung: exynos5250: Add MDMA0 clocks
 2c) ARM: dts: exynos5250: Fix MDMA0 clock number

 3) clk: samsung: exynos4: Correct SRC_MFC register

   All three issues have been present since Exynos5250 and Exynos4 clock
   drivers were added by commits 6e3ad26816 ("clk: exynos5250:
   register clocks using common clock framework") and e062b57177
   ("clk: exynos4: register clocks using common clock framework")
   respectively.

* Patch to fix automatic disabling of Exynos5250 sysreg clock that could
  cause undefined operation of several peripherals, such as USB, I2C,
  MIPI or display block.

 4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg
    clock

   Present since Exynos5250 clock drivers was added by commits
   6e3ad26816 ("clk: exynos5250: register clocks using common clock
   framework").

* Patch fixing compilation warning in clk-exynos-audss driver when
  CONFIG_PM_SLEEP is disabled.

 5) clk: exynos: File scope reg_save array should depend on PM_SLEEP

   Present since the driver was added by commit 1241ef94cc ("clk:
   samsung: register audio subsystem clocks using common clock
   framework").
2014-01-05 21:36:43 -08:00
Linus Torvalds f0a679afef Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Another set of small fixes for ARM, covering various areas.

  Laura fixed a long standing issue with virt_addr_valid() failing to
  handle holes in memory.  Steve found a problem with dcache flushing
  for compound pages.  I fixed another bug in footbridge stuff causing
  time to tick slowly, and also a problem with the AES code which can
  cause linker errors.

  A patch from Rob which fixes Xen problems induced by a lack of
  consistency in our naming of ioremap_cache() - which thankfully has
  very few users"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 7933/1: rename ioremap_cached to ioremap_cache
  ARM: fix "bad mode in ... handler" message for undefined instructions
  CRYPTO: Fix more AES build errors
  ARM: 7931/1: Correct virt_addr_valid
  ARM: 7923/1: mm: fix dcache flush logic for compound high pages
  ARM: fix footbridge clockevent device
2014-01-06 12:20:45 +11:00
Rob Herring 0a5ccc8650 ARM: 7933/1: rename ioremap_cached to ioremap_cache
ioremap_cache is more aligned with other architectures.
There are only 2 users of this in the kernel: pxa2xx-flash and Xen.

This fixes Xen build failures on arm64:

drivers/tty/hvc/hvc_xen.c:233:2: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration]
drivers/xen/grant-table.c:1174:3: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration]
drivers/xen/xenbus/xenbus_probe.c:778:4: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration]

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-05 14:00:01 +00:00
Russell King 29c350bf28 ARM: fix "bad mode in ... handler" message for undefined instructions
The array was missing the final entry for the undefined instruction
exception handler; this commit adds it.

Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-05 14:00:00 +00:00