mirror of https://gitee.com/openkylin/linux.git
2653 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Kees Cook
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3c17648c28 |
lkdtm: adjust usercopy tests to bypass const checks
The hardened usercopy is now consistently avoiding checks against const sizes, since we really only want to perform runtime bounds checking on lengths that weren't known at build time. To test the hardened usercopy code, we must force the length arguments to be seen as non-const. Signed-off-by: Kees Cook <keescook@chromium.org> |
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Linus Torvalds
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593ee4edc5 |
Char/Misc driver fixes for 4.8-rc5
Here are a number of small driver fixes for 4.8-rc5. The largest thing here is deleting an obsolete driver, drivers/misc/bh1780gli.c, as the functionality of it was replaced by an iio driver a while ago. The other fixes are things that have been reported, or reverts of broken stuff (the binder change). All of these changes have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iFYEABECABYFAlfK3/MPHGdyZWdAa3JvYWguY29tAAoJEDFH1A3bLfspm5MAoLb+ VGesoc7cGbFN0EIskollZRzBAJ9Wnhvu3rVeDQYCA0t9+uRg0CcpWw== =Wt/v -----END PGP SIGNATURE----- Merge tag 'char-misc-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are a number of small driver fixes for 4.8-rc5. The largest thing here is deleting an obsolete driver, drivers/misc/bh1780gli.c, as the functionality of it was replaced by an iio driver a while ago. The other fixes are things that have been reported, or reverts of broken stuff (the binder change). All of these changes have been in linux-next for a while with no reported issues" * tag 'char-misc-4.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: thunderbolt: Don't declare Falcon Ridge unsupported thunderbolt: Add support for INTEL_FALCON_RIDGE_2C controller. thunderbolt: Fix resume quirk for Falcon Ridge 4C. lkdtm: Mark lkdtm_rodata_do_nothing() notrace mei: me: disable driver on SPT SPS firmware Revert "android: binder: fix dangling pointer comparison" drivers/iio/light/Kconfig: SENSORS_BH1780 cleanup android: binder: fix dangling pointer comparison misc: delete bh1780 driver |
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Michael Ellerman
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c012268b37 |
lkdtm: Mark lkdtm_rodata_do_nothing() notrace
lkdtm_rodata_do_nothing() is an empty function which is generated in order to test the non-executability of rodata. Currently if function tracing is enabled then an mcount callsite will be generated for lkdtm_rodata_do_nothing(), and it will appear in the list of available functions for function tracing (available_filter_functions). Given it's purpose purely as a test function, it seems preferable for lkdtm_rodata_do_nothing() to be marked notrace, so it doesn't appear as traceable. This also avoids triggering a linker bug on powerpc: https://sourceware.org/bugzilla/show_bug.cgi?id=20428 When the linker sees code that needs to generate a call stub, eg. a branch to mcount(), it assumes the section is executable and dereferences a NULL pointer leading to a linker segfault. Marking lkdtm_rodata_do_nothing() notrace avoids triggering the bug because the function contains no other function calls. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Tomas Winkler
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8c57cac145 |
mei: me: disable driver on SPT SPS firmware
Sunrise Point PCH with SPS Firmware doesn't expose working MEI interface, we need to quirk it out. The SPS Firmware is identifiable only on the first PCI function of the device. Cc: <stable@vger.kernel.org> #4.6+ Tested-by: Sujith Pandel <sujith_pandel@dell.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Andrew Donnellan
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6f38a8b9a4 |
cxl: use pcibios_free_controller_deferred() when removing vPHBs
When cxl removes a vPHB, it's possible that the pci_controller may be freed before all references to the devices on the vPHB have been released. This in turn causes an invalid memory access when the devices are eventually released, as pcibios_release_device() attempts to call the phb's release_device hook. In cxl_pci_vphb_remove(), remove the existing call to pcibios_free_controller(). Instead, use pcibios_free_controller_deferred() to free the pci_controller after all devices have been released. Export pci_set_host_bridge_release() so we can do this. Cc: stable@vger.kernel.org Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
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Linus Walleij
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7ef9153d9a |
misc: delete bh1780 driver
The Rohm BH1780 ambient light sensor has a new driver with extended functionality (proper runtime PM) in the appropriate framework IIO, it can be found at: drivers/iio/light/bh1780.c The MISC driver symbol CONFIG_SENSORS_BH1780 does not appear in any defconfigs, so it should safe to delete. Cc: Hemanth V <hemanthv@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linus Torvalds
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8766dc68d1 |
powerpc fixes for 4.8 #3
- powerpc/vdso: Fix build rules to rebuild vdsos correctly from Nicholas Piggin - powerpc/ptrace: Fix coredump since ptrace TM changes from Cyril Bur - powerpc/32: Fix csum_partial_copy_generic() from Christophe Leroy - cxl: Set psl_fir_cntl to production environment value from Frederic Barrat - powerpc/eeh: Switch to conventional PCI address output in EEH log from Guilherme G. Piccoli - cxl: Use fixed width predefined types in data structure. from Philippe Bergheaud - powerpc/vdso: Add missing include file from Guenter Roeck - powerpc: Fix unused function warning 'lmb_to_memblock' from Alastair D'Silva - powerpc/powernv/ioda: Fix TCE invalidate to work in real mode again from Alexey Kardashevskiy - powerpc/cell: Add missing error code in spufs_mkgang() from Dan Carpenter - crypto: crc32c-vpmsum - Convert to CPU feature based module autoloading from Anton Blanchard - powerpc/pasemi: Fix coherent_dma_mask for dma engine from Darren Stevens Benjamin Herrenschmidt: - powerpc/32: Fix crash during static key init - powerpc: Update obsolete comment in setup_32.c about early_init() - powerpc: Print the kernel load address at the end of prom_init() - powerpc/pnv/pci: Fix incorrect PE reservation attempt on some 64-bit BARs - powerpc/xics: Properly set Edge/Level type and enable resend Mahesh Salgaonkar: - powerpc/book3s: Fix MCE console messages for unrecoverable MCE. - powerpc/powernv: Fix MCE handler to avoid trashing CR0/CR1 registers. - powerpc/powernv: Move IDLE_STATE_ENTER_SEQ macro to cpuidle.h - powerpc/powernv: Load correct TOC pointer while waking up from winkle. Andrew Donnellan: - cxl: Fix sparse warnings - cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests Michael Ellerman: - selftests/powerpc: Specify we expect to build with std=gnu99 - powerpc/Makefile: Use cflags-y/aflags-y for setting endian options - powerpc/pci: Fix endian bug in fixed PHB numbering -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJXrZFAAAoJEFHr6jzI4aWAxacQALPfu/kbKJFhwX8dnbzaCwHe 1bTZHE4bkkxfS5JrghbiLZHUeoCZucDhGGlZSPOEb5VA9lkEX3OJJRQDng754Pit u3pwt0SLmAxBn9BgTZy/5g5U6KMGptzJcSsKVEtZs17PKpqhPNELMm5EmGhJmNHH Ksycw4FhVrsjDm5n7s4IqUhsh0Z9QPOOxxb5rVgdBBxmLHz5a1FJSSCFan5WW3PT QNiMfg58NdBBOFbDQJWLiWXrfPPUMhXfPxHGGArXPEsa+7l5yXaygCSv5KyUBJMt sDxn6XZMuYzzvg4j8uc9mkDWNWiyxcxBJ6+/Hm5xf9vvpxzHAM1M8j9xqpaCHjeg b0fsWqVeLD+DuAVqh6rUgUERbsfUtuKXRSB+NR0hHWd7GLx707FIr3i1AAvjDODC qwcZg9mkcAbKAIOAmsk9aAB60jl7aENiz+bTvLYMHDhIbb+st94jajdaG7MSVn5z M9FFbRKmRHTW0Qoop1VuseyO9C+Lmb+ksIhBHeYaNDaJ5lzk0NwJltCNd4ybnL6h i+AFxuhN0uyT6OJOPqTR07+9p+k04LOSYPZR34rclKQ3Z+sQiYQAmwLMHasN6uBk dZxJUxmeio5J/0BXLGKLYFnaNpHnq3EQm9vdt6spn1kidmm+bOeICB8UW8AairqC 8HasF1QrjZihmoBoXgul =gw2z -----END PGP SIGNATURE----- Merge tag 'powerpc-4.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Some powerpc fixes for 4.8: Misc: - powerpc/vdso: Fix build rules to rebuild vdsos correctly from Nicholas Piggin - powerpc/ptrace: Fix coredump since ptrace TM changes from Cyril Bur - powerpc/32: Fix csum_partial_copy_generic() from Christophe Leroy - cxl: Set psl_fir_cntl to production environment value from Frederic Barrat - powerpc/eeh: Switch to conventional PCI address output in EEH log from Guilherme G. Piccoli - cxl: Use fixed width predefined types in data structure. from Philippe Bergheaud - powerpc/vdso: Add missing include file from Guenter Roeck - powerpc: Fix unused function warning 'lmb_to_memblock' from Alastair D'Silva - powerpc/powernv/ioda: Fix TCE invalidate to work in real mode again from Alexey Kardashevskiy - powerpc/cell: Add missing error code in spufs_mkgang() from Dan Carpenter - crypto: crc32c-vpmsum - Convert to CPU feature based module autoloading from Anton Blanchard - powerpc/pasemi: Fix coherent_dma_mask for dma engine from Darren Stevens Benjamin Herrenschmidt: - powerpc/32: Fix crash during static key init - powerpc: Update obsolete comment in setup_32.c about early_init() - powerpc: Print the kernel load address at the end of prom_init() - powerpc/pnv/pci: Fix incorrect PE reservation attempt on some 64-bit BARs - powerpc/xics: Properly set Edge/Level type and enable resend Mahesh Salgaonkar: - powerpc/book3s: Fix MCE console messages for unrecoverable MCE. - powerpc/powernv: Fix MCE handler to avoid trashing CR0/CR1 registers. - powerpc/powernv: Move IDLE_STATE_ENTER_SEQ macro to cpuidle.h - powerpc/powernv: Load correct TOC pointer while waking up from winkle. Andrew Donnellan: - cxl: Fix sparse warnings - cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests Michael Ellerman: - selftests/powerpc: Specify we expect to build with std=gnu99 - powerpc/Makefile: Use cflags-y/aflags-y for setting endian options - powerpc/pci: Fix endian bug in fixed PHB numbering" * tag 'powerpc-4.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (26 commits) selftests/powerpc: Specify we expect to build with std=gnu99 powerpc/vdso: Fix build rules to rebuild vdsos correctly powerpc/Makefile: Use cflags-y/aflags-y for setting endian options powerpc/32: Fix crash during static key init powerpc: Update obsolete comment in setup_32.c about early_init() powerpc: Print the kernel load address at the end of prom_init() powerpc/ptrace: Fix coredump since ptrace TM changes powerpc/32: Fix csum_partial_copy_generic() cxl: Set psl_fir_cntl to production environment value powerpc/pnv/pci: Fix incorrect PE reservation attempt on some 64-bit BARs powerpc/book3s: Fix MCE console messages for unrecoverable MCE. powerpc/pci: Fix endian bug in fixed PHB numbering powerpc/eeh: Switch to conventional PCI address output in EEH log cxl: Fix sparse warnings cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests cxl: Use fixed width predefined types in data structure. powerpc/vdso: Add missing include file powerpc: Fix unused function warning 'lmb_to_memblock' powerpc/powernv: Fix MCE handler to avoid trashing CR0/CR1 registers. powerpc/powernv: Move IDLE_STATE_ENTER_SEQ macro to cpuidle.h ... |
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Frederic Barrat
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c6d2ee09c2 |
cxl: Set psl_fir_cntl to production environment value
Switch the setting of psl_fir_cntl from debug to production environment recommended value. It mostly affects the PSL behavior when an error is raised in psl_fir1/2. Tested with cxlflash. Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Reviewed-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Andrew Donnellan
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6fd40f192a |
cxl: Fix sparse warnings
Make native_irq_wait() static and use NULL rather than 0 to initialise phb->cfg_data in cxl_pci_vphb_add() to remove sparse warnings. Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Reviewed-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Andrew Donnellan
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164793379a |
cxl: Fix NULL dereference in cxl_context_init() on PowerVM guests
Commit |
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Linus Torvalds
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81abf25258 |
Fix rebuild problem with LKDTM's rodata test.
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Kees Cook <kees@outflux.net> iQIcBAABCgAGBQJXn77OAAoJEIly9N/cbcAmnEgP/jy6eEvp0JmjqadK67uOg2HK i6AwLWeHHOQvnpFCZ2h2LtYyzS2cxOHuVOJ/eZas2SJjwvd4ODg0j5rjBnLvK2ZU nunJx/DheG2r3W5ld/0FNCaficPa4iR+j5b7JyEaXx11evif5bF7wIhiOTyS3Bhv tTTWsTObW3IZKCRozLAHFmX4jRNA7Y2rlVM3ms78Ahj2ts0Jws1hocHrNNTEOIkn wdXR0YbVyTKDLXjSvecCCJYrwHWI1fqit1i4IDDCdDNBpcMV1RBMAsUEyEJQyC1+ Bkvh4aTE3xmdvc6F0ppBTQjYunwDftZjLkTonEE4QEoOpRAOO1xmZJFqJnb2kC9t QnNMm5dPL89FxWDe9pflWBTqmPQsBx93nHKrEHAoOf+KTyOGoOrGxLbPlk+kOqUY q25SkURKAkYLYon3739kReJ1itanNuNGrEHdxtY37J9q8sOyRVylfraZYSr60KlA ueUsYikPif9vy9Vr0s14bwdyF0Wi5HIIkQ46B13RdqESvF1eApkmAn6r/aFGVAZK YT2o6BU+pNvf67od15C7ytADlK9z8857qK+Vugzm7OcK/WBkp4hR9l/ICm/lDrgj cpVoQ+wBCJT9VdHIzLb1IEkSGpWSNGjlsP4kthaSF5ehT9rUjMkEy8Lidc5EMQbc ascs9B0dS2kq42qsVzHj =yN6a -----END PGP SIGNATURE----- Merge tag 'lkdtm-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull lkdtm update from Kees Cook: "Fix rebuild problem with LKDTM's rodata test" [ This, and the usercopy branch, both came in before the merge window closed, but ended up in my 'need to look more' queue and thus got merged only after rc1 was out ] * tag 'lkdtm-v4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: lkdtm: Fix targets for objcopy usage lkdtm: fix false positive warning from -Wmaybe-uninitialized |
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Linus Torvalds
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0803e04011 |
virtio/vhost: new features for 4.8
- New vsock device support in host and guest - Platform IOMMU support in host and guest, including compatibility quirks for legacy systems. - Misc fixes and cleanups. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJXofvbAAoJECgfDbjSjVRpUTIH/iEoK9h636tBayXy0PXkPby0 6fMaRFy6H1HgEttgDhJE8Pqg/ba3qaW9Em0fHyFq7Mp2waFHAZ8hAT8phC6TAK3c CIBnfzyyuI8u3N9SnNOfelPVcwCBfuALuuTsXB/rwKbYQEVv+U5Rdt3Vyx9+lXkj P005klz7PfqxFhQrrnj4Eh7VawtHwmMuLH8YoWpCZpM71dHPo6eL+3ftKwhH2boo qK86uVprwba03Pewpm13vQnotemfVfUUkjXd4EJpG3dx7E0KZosuj0ZG9OV8mPGQ Cl2gBdUhocdJgeUnAHmf6tumYi9KFlYfy6xLy44YMmN7FL3E9nQjaKZp25UKfiM= =ztIm -----END PGP SIGNATURE----- Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost Pull virtio/vhost updates from Michael Tsirkin: - new vsock device support in host and guest - platform IOMMU support in host and guest, including compatibility quirks for legacy systems. - misc fixes and cleanups. * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: VSOCK: Use kvfree() vhost: split out vringh Kconfig vhost: detect 32 bit integer wrap around vhost: new device IOTLB API vhost: drop vringh dependency vhost: convert pre sorted vhost memory array to interval tree vhost: introduce vhost memory accessors VSOCK: Add Makefile and Kconfig VSOCK: Introduce vhost_vsock.ko VSOCK: Introduce virtio_transport.ko VSOCK: Introduce virtio_vsock_common.ko VSOCK: defer sock removal to transports VSOCK: transport-specific vsock_transport functions vhost: drop vringh dependency vop: pull in vhost Kconfig virtio: new feature to detect IOMMU device quirk balloon: check the number of available pages in leak balloon vhost: lockless enqueuing vhost: simplify work flushing |
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Krzysztof Kozlowski
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00085f1efa |
dma-mapping: use unsigned long for dma_attrs
The dma-mapping core and the implementations do not change the DMA
attributes passed by pointer. Thus the pointer can point to const data.
However the attributes do not have to be a bitfield. Instead unsigned
long will do fine:
1. This is just simpler. Both in terms of reading the code and setting
attributes. Instead of initializing local attributes on the stack
and passing pointer to it to dma_set_attr(), just set the bits.
2. It brings safeness and checking for const correctness because the
attributes are passed by value.
Semantic patches for this change (at least most of them):
virtual patch
virtual context
@r@
identifier f, attrs;
@@
f(...,
- struct dma_attrs *attrs
+ unsigned long attrs
, ...)
{
...
}
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
and
// Options: --all-includes
virtual patch
virtual context
@r@
identifier f, attrs;
type t;
@@
t f(..., struct dma_attrs *attrs);
@@
identifier r.f;
@@
f(...,
- NULL
+ 0
)
Link: http://lkml.kernel.org/r/1468399300-5399-2-git-send-email-k.kozlowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Acked-by: Mark Salter <msalter@redhat.com> [c6x]
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> [cris]
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [drm]
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Fabien Dessenne <fabien.dessenne@st.com> [bdisp]
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com> [vb2-core]
Acked-by: David Vrabel <david.vrabel@citrix.com> [xen]
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> [xen swiotlb]
Acked-by: Joerg Roedel <jroedel@suse.de> [iommu]
Acked-by: Richard Kuo <rkuo@codeaurora.org> [hexagon]
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> [avr32]
Acked-by: Vineet Gupta <vgupta@synopsys.com> [arc]
Acked-by: Robin Murphy <robin.murphy@arm.com> [arm64 and dma-iommu]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds
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c8d0267efd |
PCI changes for the v4.8 merge window:
Enumeration
Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
Add parent device field to ECAM struct pci_config_window (Jayachandran C)
Add generic MCFG table handling (Tomasz Nowicki)
Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)
Resource management
Add devm_request_pci_bus_resources() (Bjorn Helgaas)
Unify pci_resource_to_user() declarations (Bjorn Helgaas)
Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
Ignore write combining when mapping I/O port space (Bjorn Helgaas)
Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
Support I/O resources when parsing host bridge resources (Jayachandran C)
Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)
PCI device hotplug
Allow additional bus numbers for hotplug bridges (Keith Busch)
Ignore interrupts during D3cold (Lukas Wunner)
Power management
Enforce type casting for pci_power_t (Andy Shevchenko)
Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
Put PCIe ports into D3 during suspend (Mika Westerberg)
Power on bridges before scanning new devices (Mika Westerberg)
Runtime resume bridge before rescan (Mika Westerberg)
Add runtime PM support for PCIe ports (Mika Westerberg)
Remove redundant check of pcie_set_clkpm (Shawn Lin)
Virtualization
Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
Add ACS quirk for Solarflare SFC9220 (Edward Cree)
MSI
Fix PCI_MSI dependencies (Arnd Bergmann)
Add pci_msix_desc_addr() helper (Christoph Hellwig)
Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)
Error Handling
Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
Remove DPC tristate module option (Keith Busch)
Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)
Generic host bridge driver
Select IRQ_DOMAIN (Arnd Bergmann)
Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
ACPI host bridge driver
Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)
Altera host bridge driver
Check link status before retrain link (Ley Foon Tan)
Poll for link up status after retraining the link (Ley Foon Tan)
Axis ARTPEC-6 host bridge driver
Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)
Intel VMD host bridge driver
Use lock save/restore in interrupt enable path (Jon Derrick)
Select device dma ops to override (Keith Busch)
Initialize list item in IRQ disable (Keith Busch)
Use x86_vector_domain as parent domain (Keith Busch)
Separate MSI and MSI-X vector sharing (Keith Busch)
Marvell Aardvark host bridge driver
Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
Add Aardvark PCI host controller driver (Thomas Petazzoni)
Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)
Microsoft Hyper-V host bridge driver
Fix interrupt cleanup path (Cathy Avery)
Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
NVIDIA Tegra host bridge driver
Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
Use lower-case hex consistently for register definitions (Thierry Reding)
Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
Stop setting pcibios_min_mem (Thierry Reding)
Renesas R-Car host bridge driver
Drop gen2 dummy I/O port region (Bjorn Helgaas)
TI DRA7xx host bridge driver
Fix return value in case of error (Christophe JAILLET)
Xilinx AXI host bridge driver
Fix return value in case of error (Christophe JAILLET)
Miscellaneous
Make bus_attr_resource_alignment static (Ben Dooks)
Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
Make host bridge drivers explicitly non-modular (Paul Gortmaker)
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Merge tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Highlights:
- ARM64 support for ACPI host bridges
- new drivers for Axis ARTPEC-6 and Marvell Aardvark
- new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx
- pci_resource_to_user() cleanup (more to come)
Detailed summary:
Enumeration:
- Move ecam.h to linux/include/pci-ecam.h (Jayachandran C)
- Add parent device field to ECAM struct pci_config_window (Jayachandran C)
- Add generic MCFG table handling (Tomasz Nowicki)
- Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki)
- Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki)
Resource management:
- Add devm_request_pci_bus_resources() (Bjorn Helgaas)
- Unify pci_resource_to_user() declarations (Bjorn Helgaas)
- Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas)
- Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas)
- Make PCI I/O space optional on ARM32 (Bjorn Helgaas)
- Ignore write combining when mapping I/O port space (Bjorn Helgaas)
- Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas)
- Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas)
- Support I/O resources when parsing host bridge resources (Jayachandran C)
- Add helpers to request/release memory and I/O regions (Johannes Thumshirn)
- Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn)
- Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5))
- Add generic pci_bus_claim_resources() (Lorenzo Pieralisi)
- Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
- Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi)
- Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya)
- Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu)
PCI device hotplug:
- Allow additional bus numbers for hotplug bridges (Keith Busch)
- Ignore interrupts during D3cold (Lukas Wunner)
Power management:
- Enforce type casting for pci_power_t (Andy Shevchenko)
- Don't clear d3cold_allowed for PCIe ports (Mika Westerberg)
- Put PCIe ports into D3 during suspend (Mika Westerberg)
- Power on bridges before scanning new devices (Mika Westerberg)
- Runtime resume bridge before rescan (Mika Westerberg)
- Add runtime PM support for PCIe ports (Mika Westerberg)
- Remove redundant check of pcie_set_clkpm (Shawn Lin)
Virtualization:
- Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra)
- Add DMA alias quirk for Adaptec 3805 (Alex Williamson)
- Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake)
- Add ACS quirk for Solarflare SFC9220 (Edward Cree)
MSI:
- Fix PCI_MSI dependencies (Arnd Bergmann)
- Add pci_msix_desc_addr() helper (Christoph Hellwig)
- Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig)
- Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig)
- Provide sensible IRQ vector alloc/free routines (Christoph Hellwig)
- Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig)
Error Handling:
- Bind DPC to Root Ports as well as Downstream Ports (Keith Busch)
- Remove DPC tristate module option (Keith Busch)
- Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg)
Generic host bridge driver:
- Select IRQ_DOMAIN (Arnd Bergmann)
- Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi)
ACPI host bridge driver:
- Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki)
- Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki)
- Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki)
- Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki)
Altera host bridge driver:
- Check link status before retrain link (Ley Foon Tan)
- Poll for link up status after retraining the link (Ley Foon Tan)
Axis ARTPEC-6 host bridge driver:
- Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann)
- Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel)
- Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel)
Intel VMD host bridge driver:
- Use lock save/restore in interrupt enable path (Jon Derrick)
- Select device dma ops to override (Keith Busch)
- Initialize list item in IRQ disable (Keith Busch)
- Use x86_vector_domain as parent domain (Keith Busch)
- Separate MSI and MSI-X vector sharing (Keith Busch)
Marvell Aardvark host bridge driver:
- Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni)
- Add Aardvark PCI host controller driver (Thomas Petazzoni)
- Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni)
Microsoft Hyper-V host bridge driver:
- Fix interrupt cleanup path (Cathy Avery)
- Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
- Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov)
NVIDIA Tegra host bridge driver:
- Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren)
- Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren)
- Use lower-case hex consistently for register definitions (Thierry Reding)
- Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding)
- Stop setting pcibios_min_mem (Thierry Reding)
Renesas R-Car host bridge driver:
- Drop gen2 dummy I/O port region (Bjorn Helgaas)
TI DRA7xx host bridge driver:
- Fix return value in case of error (Christophe JAILLET)
Xilinx AXI host bridge driver:
- Fix return value in case of error (Christophe JAILLET)
Miscellaneous:
- Make bus_attr_resource_alignment static (Ben Dooks)
- Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks)
- MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven)
- Make host bridge drivers explicitly non-modular (Paul Gortmaker)"
* tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits)
PCI: xgene: Make explicitly non-modular
PCI: thunder-pem: Make explicitly non-modular
PCI: thunder-ecam: Make explicitly non-modular
PCI: tegra: Make explicitly non-modular
PCI: rcar-gen2: Make explicitly non-modular
PCI: rcar: Make explicitly non-modular
PCI: mvebu: Make explicitly non-modular
PCI: layerscape: Make explicitly non-modular
PCI: keystone: Make explicitly non-modular
PCI: hisi: Make explicitly non-modular
PCI: generic: Make explicitly non-modular
PCI: designware-plat: Make it explicitly non-modular
PCI: artpec6: Make explicitly non-modular
PCI: armada8k: Make explicitly non-modular
PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency
PCI: Add ACS quirk for Solarflare SFC9220
arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700
PCI: aardvark: Add Aardvark PCI host controller driver
dt-bindings: add DT binding for the Aardvark PCIe controller
PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values
...
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Michael S. Tsirkin
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4d93824561 |
vhost: split out vringh Kconfig
vringh is pulled in by caif and mic, but the other vhost config does not need to be there. In particular, it makes no sense to have vhost net/scsi/sock under caif/mic. Create a separate Kconfig file and put vringh bits there. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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Michael S. Tsirkin
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48783646bd |
vop: pull in vhost Kconfig
VOP selects VHOST_RING. Pull in Kconfig that includes it to make it self-containing. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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Kees Cook
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e50bd2354c |
lkdtm: Fix targets for objcopy usage
The targets for lkdtm's objcopy were missing which caused them to always be rebuilt. This corrects the problem. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Kees Cook <keescook@chromium.org> |
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Kees Cook
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300108740b |
lkdtm: fix false positive warning from -Wmaybe-uninitialized
The variable in use here doesn't matter (it's just used to exercise taking up stack space), but this changes its use to pass its address instead, to avoid a compiler warning: drivers/misc/lkdtm_usercopy.c:54:15: warning: 'bad_stack' may be used uninitialized in this function [-Wmaybe-uninitialized] Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kees Cook <keescook@chromium.org> |
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Bjorn Helgaas
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9454c23852 |
Merge branch 'pci/msi-affinity' into next
Conflicts: drivers/nvme/host/pci.c |
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Linus Torvalds
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bad60e6f25 |
powerpc updates for 4.8 # 1
Highlights:
- PowerNV PCI hotplug support.
- Lots more Power9 support.
- eBPF JIT support on ppc64le.
- Lots of cxl updates.
- Boot code consolidation.
Bug fixes:
- Fix spin_unlock_wait() from Boqun Feng
- Fix stack pointer corruption in __tm_recheckpoint() from Michael Neuling
- Fix multiple bugs in memory_hotplug_max() from Bharata B Rao
- mm: Ensure "special" zones are empty from Oliver O'Halloran
- ftrace: Separate the heuristics for checking call sites from Michael Ellerman
- modules: Never restore r2 for a mprofile-kernel style mcount() call from Michael Ellerman
- Fix endianness when reading TCEs from Alexey Kardashevskiy
- start rtasd before PCI probing from Greg Kurz
- PCI: rpaphp: Fix slot registration for multiple slots under a PHB from Tyrel Datwyler
- powerpc/mm: Add memory barrier in __hugepte_alloc() from Sukadev Bhattiprolu
Cleanups & fixes:
- Drop support for MPIC in pseries from Rashmica Gupta
- Define and use PPC64_ELF_ABI_v2/v1 from Michael Ellerman
- Remove unused symbols in asm-offsets.c from Rashmica Gupta
- Fix SRIOV not building without EEH enabled from Russell Currey
- Remove kretprobe_trampoline_holder. from Thiago Jung Bauermann
- Reduce log level of PCI I/O space warning from Benjamin Herrenschmidt
- Add array bounds checking to crash_shutdown_handlers from Suraj Jitindar Singh
- Avoid -maltivec when using clang integrated assembler from Anton Blanchard
- Fix array overrun in ppc_rtas() syscall from Andrew Donnellan
- Fix error return value in cmm_mem_going_offline() from Rasmus Villemoes
- export cpu_to_core_id() from Mauricio Faria de Oliveira
- Remove old symbols from defconfigs from Andrew Donnellan
- Update obsolete comments in setup_32.c about entry conditions from Benjamin Herrenschmidt
- Add comment explaining the purpose of setup_kdump_trampoline() from Benjamin Herrenschmidt
- Merge the RELOCATABLE config entries for ppc32 and ppc64 from Kevin Hao
- Remove RELOCATABLE_PPC32 from Kevin Hao
- Fix .long's in tlb-radix.c to more meaningful from Balbir Singh
Minor cleanups & fixes:
- Andrew Donnellan, Anna-Maria Gleixner, Anton Blanchard, Benjamin
Herrenschmidt, Bharata B Rao, Christophe Leroy, Colin Ian King, Geliang
Tang, Greg Kurz, Madhavan Srinivasan, Michael Ellerman, Michael Ellerman,
Stephen Rothwell, Stewart Smith.
Freescale updates from Scott:
- "Highlights include more 8xx optimizations, device tree updates,
and MVME7100 support."
PowerNV PCI hotplug from Gavin Shan:
- PCI: Add pcibios_setup_bridge()
- Override pcibios_setup_bridge()
- Remove PCI_RESET_DELAY_US
- Move pnv_pci_ioda_setup_opal_tce_kill() around
- Increase PE# capacity
- Allocate PE# in reverse order
- Create PEs in pcibios_setup_bridge()
- Setup PE for root bus
- Extend PCI bridge resources
- Make pnv_ioda_deconfigure_pe() visible
- Dynamically release PE
- Update bridge windows on PCI plug
- Delay populating pdn
- Support PCI slot ID
- Use PCI slot reset infrastructure
- Introduce pnv_pci_get_slot_id()
- Functions to get/set PCI slot state
- PCI/hotplug: PowerPC PowerNV PCI hotplug driver
- Print correct PHB type names
Power9 idle support from Shreyas B. Prabhu:
- set power_save func after the idle states are initialized
- Use PNV_THREAD_WINKLE macro while requesting for winkle
- make hypervisor state restore a function
- Rename idle_power7.S to idle_book3s.S
- Rename reusable idle functions to hardware agnostic names
- Make pnv_powersave_common more generic
- abstraction for saving SPRs before entering deep idle states
- Add platform support for stop instruction
- cpuidle/powernv: Use CPUIDLE_STATE_MAX instead of MAX_POWERNV_IDLE_STATES
- cpuidle/powernv: cleanup cpuidle-powernv.c
- cpuidle/powernv: Add support for POWER ISA v3 idle states
- Use deepest stop state when cpu is offlined
Power9 PMU from Madhavan Srinivasan:
- factor out power8 pmu macros and defines
- factor out power8 pmu functions
- factor out power8 __init_pmu code
- Add power9 event list macros for generic and cache events
- Power9 PMU support
- Export Power9 generic and cache events to sysfs
Power9 preliminary interrupt & PCI support from Benjamin Herrenschmidt:
- Add XICS emulation APIs
- Move a few exception common handlers to make room
- Add support for HV virtualization interrupts
- Add mechanism to force a replay of interrupts
- Add ICP OPAL backend
- Discover IODA3 PHBs
- pci: Remove obsolete SW invalidate
- opal: Add real mode call wrappers
- Rename TCE invalidation calls
- Remove SWINV constants and obsolete TCE code
- Rework accessing the TCE invalidate register
- Fallback to OPAL for TCE invalidations
- Use the device-tree to get available range of M64's
- Check status of a PHB before using it
- pci: Don't try to allocate resources that will be reassigned
Other Power9:
- Send SIGBUS on unaligned copy and paste from Chris Smart
- Large Decrementer support from Oliver O'Halloran
- Load Monitor Register Support from Jack Miller
Performance improvements from Anton Blanchard:
- Avoid load hit store in __giveup_fpu() and __giveup_altivec()
- Avoid load hit store in setup_sigcontext()
- Remove assembly versions of strcpy, strcat, strlen and strcmp
- Align hot loops of some string functions
eBPF JIT from Naveen N. Rao:
- Fix/enhance 32-bit Load Immediate implementation
- Optimize 64-bit Immediate loads
- Introduce rotate immediate instructions
- A few cleanups
- Isolate classic BPF JIT specifics into a separate header
- Implement JIT compiler for extended BPF
Operator Panel driver from Suraj Jitindar Singh:
- devicetree/bindings: Add binding for operator panel on FSP machines
- Add inline function to get rc from an ASYNC_COMP opal_msg
- Add driver for operator panel on FSP machines
Sparse fixes from Daniel Axtens:
- make some things static
- Introduce asm-prototypes.h
- Include headers containing prototypes
- Use #ifdef __BIG_ENDIAN__ #else for REG_BYTE
- kvm: Clarify __user annotations
- Pass endianness to sparse
- Make ppc_md.{halt, restart} __noreturn
MM fixes & cleanups from Aneesh Kumar K.V:
- radix: Update LPCR HR bit as per ISA
- use _raw variant of page table accessors
- Compile out radix related functions if RADIX_MMU is disabled
- Clear top 16 bits of va only on older cpus
- Print formation regarding the the MMU mode
- hash: Update SDR1 size encoding as documented in ISA 3.0
- radix: Update PID switch sequence
- radix: Update machine call back to support new HCALL.
- radix: Add LPID based tlb flush helpers
- radix: Add a kernel command line to disable radix
- Cleanup LPCR defines
Boot code consolidation from Benjamin Herrenschmidt:
- Move epapr_paravirt_early_init() to early_init_devtree()
- cell: Don't use flat device-tree after boot
- ge_imp3a: Don't use the flat device-tree after boot
- mpc85xx_ds: Don't use the flat device-tree after boot
- mpc85xx_rdb: Don't use the flat device-tree after boot
- Don't test for machine type in rtas_initialize()
- Don't test for machine type in smp_setup_cpu_maps()
- dt: Add of_device_compatible_match()
- Factor do_feature_fixup calls
- Move 64-bit feature fixup earlier
- Move 64-bit memory reserves to setup_arch()
- Use a cachable DART
- Move FW feature probing out of pseries probe()
- Put exception configuration in a common place
- Remove early allocation of the SMU command buffer
- Move MMU backend selection out of platform code
- pasemi: Remove IOBMAP allocation from platform probe()
- mm/hash: Don't use machine_is() early during boot
- Don't test for machine type to detect HEA special case
- pmac: Remove spurrious machine type test
- Move hash table ops to a separate structure
- Ensure that ppc_md is empty before probing for machine type
- Move 64-bit probe_machine() to later in the boot process
- Move 32-bit probe() machine to later in the boot process
- Get rid of ppc_md.init_early()
- Move the boot time info banner to a separate function
- Move setting of {i,d}cache_bsize to initialize_cache_info()
- Move the content of setup_system() to setup_arch()
- Move cache info inits to a separate function
- Re-order the call to smp_setup_cpu_maps()
- Re-order setup_panic()
- Make a few boot functions __init
- Merge 32-bit and 64-bit setup_arch()
Other new features:
- tty/hvc: Use IRQF_SHARED for OPAL hvc consoles from Sam Mendoza-Jonas
- tty/hvc: Use opal irqchip interface if available from Sam Mendoza-Jonas
- powerpc: Add module autoloading based on CPU features from Alastair D'Silva
- crypto: vmx - Convert to CPU feature based module autoloading from Alastair D'Silva
- Wake up kopald polling thread before waiting for events from Benjamin Herrenschmidt
- xmon: Dump ISA 2.06 SPRs from Michael Ellerman
- xmon: Dump ISA 2.07 SPRs from Michael Ellerman
- Add a parameter to disable 1TB segs from Oliver O'Halloran
- powerpc/boot: Add OPAL console to epapr wrappers from Oliver O'Halloran
- Assign fixed PHB number based on device-tree properties from Guilherme G. Piccoli
- pseries: Add pseries hotplug workqueue from John Allen
- pseries: Add support for hotplug interrupt source from John Allen
- pseries: Use kernel hotplug queue for PowerVM hotplug events from John Allen
- pseries: Move property cloning into its own routine from Nathan Fontenot
- pseries: Dynamic add entires to associativity lookup array from Nathan Fontenot
- pseries: Auto-online hotplugged memory from Nathan Fontenot
- pseries: Remove call to memblock_add() from Nathan Fontenot
cxl:
- Add set and get private data to context struct from Michael Neuling
- make base more explicitly non-modular from Paul Gortmaker
- Use for_each_compatible_node() macro from Wei Yongjun
- Frederic Barrat
- Abstract the differences between the PSL and XSL
- Make vPHB device node match adapter's
- Philippe Bergheaud
- Add mechanism for delivering AFU driver specific events
- Ignore CAPI adapters misplaced in switched slots
- Refine slice error debug messages
- Andrew Donnellan
- static-ify variables to fix sparse warnings
- PCI/hotplug: pnv_php: export symbols and move struct types needed by cxl
- PCI/hotplug: pnv_php: handle OPAL_PCI_SLOT_OFFLINE power state
- Add cxl_check_and_switch_mode() API to switch bi-modal cards
- remove dead Kconfig options
- fix potential NULL dereference in free_adapter()
- Ian Munsie
- Update process element after allocating interrupts
- Add support for CAPP DMA mode
- Fix allowing bogus AFU descriptors with 0 maximum processes
- Fix allocating a minimum of 2 pages for the SPA
- Fix bug where AFU disable operation had no effect
- Workaround XSL bug that does not clear the RA bit after a reset
- Fix NULL pointer dereference on kernel contexts with no AFU interrupts
- powerpc/powernv: Split cxl code out into a separate file
- Add cxl_slot_is_supported API
- Enable bus mastering for devices using CAPP DMA mode
- Move cxl_afu_get / cxl_afu_put to base
- Allow a default context to be associated with an external pci_dev
- Do not create vPHB if there are no AFU configuration records
- powerpc/powernv: Add support for the cxl kernel api on the real phb
- Add support for using the kernel API with a real PHB
- Add kernel APIs to get & set the max irqs per context
- Add preliminary workaround for CX4 interrupt limitation
- Add support for interrupts on the Mellanox CX4
- Workaround PE=0 hardware limitation in Mellanox CX4
- powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=n
selftests:
- Test unaligned copy and paste from Chris Smart
- Load Monitor Register Tests from Jack Miller
- Cyril Bur
- exec() with suspended transaction
- Use signed long to read perf_event_paranoid
- Fix usage message in context_switch
- Fix generation of vector instructions/types in context_switch
- Michael Ellerman
- Use "Delta" rather than "Error" in normal output
- Import Anton's mmap & futex micro benchmarks
- Add a test for PROT_SAO
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Merge tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- PowerNV PCI hotplug support.
- Lots more Power9 support.
- eBPF JIT support on ppc64le.
- Lots of cxl updates.
- Boot code consolidation.
Bug fixes:
- Fix spin_unlock_wait() from Boqun Feng
- Fix stack pointer corruption in __tm_recheckpoint() from Michael
Neuling
- Fix multiple bugs in memory_hotplug_max() from Bharata B Rao
- mm: Ensure "special" zones are empty from Oliver O'Halloran
- ftrace: Separate the heuristics for checking call sites from
Michael Ellerman
- modules: Never restore r2 for a mprofile-kernel style mcount() call
from Michael Ellerman
- Fix endianness when reading TCEs from Alexey Kardashevskiy
- start rtasd before PCI probing from Greg Kurz
- PCI: rpaphp: Fix slot registration for multiple slots under a PHB
from Tyrel Datwyler
- powerpc/mm: Add memory barrier in __hugepte_alloc() from Sukadev
Bhattiprolu
Cleanups & fixes:
- Drop support for MPIC in pseries from Rashmica Gupta
- Define and use PPC64_ELF_ABI_v2/v1 from Michael Ellerman
- Remove unused symbols in asm-offsets.c from Rashmica Gupta
- Fix SRIOV not building without EEH enabled from Russell Currey
- Remove kretprobe_trampoline_holder from Thiago Jung Bauermann
- Reduce log level of PCI I/O space warning from Benjamin
Herrenschmidt
- Add array bounds checking to crash_shutdown_handlers from Suraj
Jitindar Singh
- Avoid -maltivec when using clang integrated assembler from Anton
Blanchard
- Fix array overrun in ppc_rtas() syscall from Andrew Donnellan
- Fix error return value in cmm_mem_going_offline() from Rasmus
Villemoes
- export cpu_to_core_id() from Mauricio Faria de Oliveira
- Remove old symbols from defconfigs from Andrew Donnellan
- Update obsolete comments in setup_32.c about entry conditions from
Benjamin Herrenschmidt
- Add comment explaining the purpose of setup_kdump_trampoline() from
Benjamin Herrenschmidt
- Merge the RELOCATABLE config entries for ppc32 and ppc64 from Kevin
Hao
- Remove RELOCATABLE_PPC32 from Kevin Hao
- Fix .long's in tlb-radix.c to more meaningful from Balbir Singh
Minor cleanups & fixes:
- Andrew Donnellan, Anna-Maria Gleixner, Anton Blanchard, Benjamin
Herrenschmidt, Bharata B Rao, Christophe Leroy, Colin Ian King,
Geliang Tang, Greg Kurz, Madhavan Srinivasan, Michael Ellerman,
Michael Ellerman, Stephen Rothwell, Stewart Smith.
Freescale updates from Scott:
- "Highlights include more 8xx optimizations, device tree updates,
and MVME7100 support."
PowerNV PCI hotplug from Gavin Shan:
- PCI: Add pcibios_setup_bridge()
- Override pcibios_setup_bridge()
- Remove PCI_RESET_DELAY_US
- Move pnv_pci_ioda_setup_opal_tce_kill() around
- Increase PE# capacity
- Allocate PE# in reverse order
- Create PEs in pcibios_setup_bridge()
- Setup PE for root bus
- Extend PCI bridge resources
- Make pnv_ioda_deconfigure_pe() visible
- Dynamically release PE
- Update bridge windows on PCI plug
- Delay populating pdn
- Support PCI slot ID
- Use PCI slot reset infrastructure
- Introduce pnv_pci_get_slot_id()
- Functions to get/set PCI slot state
- PCI/hotplug: PowerPC PowerNV PCI hotplug driver
- Print correct PHB type names
Power9 idle support from Shreyas B. Prabhu:
- set power_save func after the idle states are initialized
- Use PNV_THREAD_WINKLE macro while requesting for winkle
- make hypervisor state restore a function
- Rename idle_power7.S to idle_book3s.S
- Rename reusable idle functions to hardware agnostic names
- Make pnv_powersave_common more generic
- abstraction for saving SPRs before entering deep idle states
- Add platform support for stop instruction
- cpuidle/powernv: Use CPUIDLE_STATE_MAX instead of MAX_POWERNV_IDLE_STATES
- cpuidle/powernv: cleanup cpuidle-powernv.c
- cpuidle/powernv: Add support for POWER ISA v3 idle states
- Use deepest stop state when cpu is offlined
Power9 PMU from Madhavan Srinivasan:
- factor out power8 pmu macros and defines
- factor out power8 pmu functions
- factor out power8 __init_pmu code
- Add power9 event list macros for generic and cache events
- Power9 PMU support
- Export Power9 generic and cache events to sysfs
Power9 preliminary interrupt & PCI support from Benjamin Herrenschmidt:
- Add XICS emulation APIs
- Move a few exception common handlers to make room
- Add support for HV virtualization interrupts
- Add mechanism to force a replay of interrupts
- Add ICP OPAL backend
- Discover IODA3 PHBs
- pci: Remove obsolete SW invalidate
- opal: Add real mode call wrappers
- Rename TCE invalidation calls
- Remove SWINV constants and obsolete TCE code
- Rework accessing the TCE invalidate register
- Fallback to OPAL for TCE invalidations
- Use the device-tree to get available range of M64's
- Check status of a PHB before using it
- pci: Don't try to allocate resources that will be reassigned
Other Power9:
- Send SIGBUS on unaligned copy and paste from Chris Smart
- Large Decrementer support from Oliver O'Halloran
- Load Monitor Register Support from Jack Miller
Performance improvements from Anton Blanchard:
- Avoid load hit store in __giveup_fpu() and __giveup_altivec()
- Avoid load hit store in setup_sigcontext()
- Remove assembly versions of strcpy, strcat, strlen and strcmp
- Align hot loops of some string functions
eBPF JIT from Naveen N. Rao:
- Fix/enhance 32-bit Load Immediate implementation
- Optimize 64-bit Immediate loads
- Introduce rotate immediate instructions
- A few cleanups
- Isolate classic BPF JIT specifics into a separate header
- Implement JIT compiler for extended BPF
Operator Panel driver from Suraj Jitindar Singh:
- devicetree/bindings: Add binding for operator panel on FSP machines
- Add inline function to get rc from an ASYNC_COMP opal_msg
- Add driver for operator panel on FSP machines
Sparse fixes from Daniel Axtens:
- make some things static
- Introduce asm-prototypes.h
- Include headers containing prototypes
- Use #ifdef __BIG_ENDIAN__ #else for REG_BYTE
- kvm: Clarify __user annotations
- Pass endianness to sparse
- Make ppc_md.{halt, restart} __noreturn
MM fixes & cleanups from Aneesh Kumar K.V:
- radix: Update LPCR HR bit as per ISA
- use _raw variant of page table accessors
- Compile out radix related functions if RADIX_MMU is disabled
- Clear top 16 bits of va only on older cpus
- Print formation regarding the the MMU mode
- hash: Update SDR1 size encoding as documented in ISA 3.0
- radix: Update PID switch sequence
- radix: Update machine call back to support new HCALL.
- radix: Add LPID based tlb flush helpers
- radix: Add a kernel command line to disable radix
- Cleanup LPCR defines
Boot code consolidation from Benjamin Herrenschmidt:
- Move epapr_paravirt_early_init() to early_init_devtree()
- cell: Don't use flat device-tree after boot
- ge_imp3a: Don't use the flat device-tree after boot
- mpc85xx_ds: Don't use the flat device-tree after boot
- mpc85xx_rdb: Don't use the flat device-tree after boot
- Don't test for machine type in rtas_initialize()
- Don't test for machine type in smp_setup_cpu_maps()
- dt: Add of_device_compatible_match()
- Factor do_feature_fixup calls
- Move 64-bit feature fixup earlier
- Move 64-bit memory reserves to setup_arch()
- Use a cachable DART
- Move FW feature probing out of pseries probe()
- Put exception configuration in a common place
- Remove early allocation of the SMU command buffer
- Move MMU backend selection out of platform code
- pasemi: Remove IOBMAP allocation from platform probe()
- mm/hash: Don't use machine_is() early during boot
- Don't test for machine type to detect HEA special case
- pmac: Remove spurrious machine type test
- Move hash table ops to a separate structure
- Ensure that ppc_md is empty before probing for machine type
- Move 64-bit probe_machine() to later in the boot process
- Move 32-bit probe() machine to later in the boot process
- Get rid of ppc_md.init_early()
- Move the boot time info banner to a separate function
- Move setting of {i,d}cache_bsize to initialize_cache_info()
- Move the content of setup_system() to setup_arch()
- Move cache info inits to a separate function
- Re-order the call to smp_setup_cpu_maps()
- Re-order setup_panic()
- Make a few boot functions __init
- Merge 32-bit and 64-bit setup_arch()
Other new features:
- tty/hvc: Use IRQF_SHARED for OPAL hvc consoles from Sam Mendoza-Jonas
- tty/hvc: Use opal irqchip interface if available from Sam Mendoza-Jonas
- powerpc: Add module autoloading based on CPU features from Alastair D'Silva
- crypto: vmx - Convert to CPU feature based module autoloading from Alastair D'Silva
- Wake up kopald polling thread before waiting for events from Benjamin Herrenschmidt
- xmon: Dump ISA 2.06 SPRs from Michael Ellerman
- xmon: Dump ISA 2.07 SPRs from Michael Ellerman
- Add a parameter to disable 1TB segs from Oliver O'Halloran
- powerpc/boot: Add OPAL console to epapr wrappers from Oliver O'Halloran
- Assign fixed PHB number based on device-tree properties from Guilherme G. Piccoli
- pseries: Add pseries hotplug workqueue from John Allen
- pseries: Add support for hotplug interrupt source from John Allen
- pseries: Use kernel hotplug queue for PowerVM hotplug events from John Allen
- pseries: Move property cloning into its own routine from Nathan Fontenot
- pseries: Dynamic add entires to associativity lookup array from Nathan Fontenot
- pseries: Auto-online hotplugged memory from Nathan Fontenot
- pseries: Remove call to memblock_add() from Nathan Fontenot
cxl:
- Add set and get private data to context struct from Michael Neuling
- make base more explicitly non-modular from Paul Gortmaker
- Use for_each_compatible_node() macro from Wei Yongjun
- Frederic Barrat
- Abstract the differences between the PSL and XSL
- Make vPHB device node match adapter's
- Philippe Bergheaud
- Add mechanism for delivering AFU driver specific events
- Ignore CAPI adapters misplaced in switched slots
- Refine slice error debug messages
- Andrew Donnellan
- static-ify variables to fix sparse warnings
- PCI/hotplug: pnv_php: export symbols and move struct types needed by cxl
- PCI/hotplug: pnv_php: handle OPAL_PCI_SLOT_OFFLINE power state
- Add cxl_check_and_switch_mode() API to switch bi-modal cards
- remove dead Kconfig options
- fix potential NULL dereference in free_adapter()
- Ian Munsie
- Update process element after allocating interrupts
- Add support for CAPP DMA mode
- Fix allowing bogus AFU descriptors with 0 maximum processes
- Fix allocating a minimum of 2 pages for the SPA
- Fix bug where AFU disable operation had no effect
- Workaround XSL bug that does not clear the RA bit after a reset
- Fix NULL pointer dereference on kernel contexts with no AFU interrupts
- powerpc/powernv: Split cxl code out into a separate file
- Add cxl_slot_is_supported API
- Enable bus mastering for devices using CAPP DMA mode
- Move cxl_afu_get / cxl_afu_put to base
- Allow a default context to be associated with an external pci_dev
- Do not create vPHB if there are no AFU configuration records
- powerpc/powernv: Add support for the cxl kernel api on the real phb
- Add support for using the kernel API with a real PHB
- Add kernel APIs to get & set the max irqs per context
- Add preliminary workaround for CX4 interrupt limitation
- Add support for interrupts on the Mellanox CX4
- Workaround PE=0 hardware limitation in Mellanox CX4
- powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=n
selftests:
- Test unaligned copy and paste from Chris Smart
- Load Monitor Register Tests from Jack Miller
- Cyril Bur
- exec() with suspended transaction
- Use signed long to read perf_event_paranoid
- Fix usage message in context_switch
- Fix generation of vector instructions/types in context_switch
- Michael Ellerman
- Use "Delta" rather than "Error" in normal output
- Import Anton's mmap & futex micro benchmarks
- Add a test for PROT_SAO"
* tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (263 commits)
powerpc/mm: Parenthesise IS_ENABLED() in if condition
tty/hvc: Use opal irqchip interface if available
tty/hvc: Use IRQF_SHARED for OPAL hvc consoles
selftests/powerpc: exec() with suspended transaction
powerpc: Improve comment explaining why we modify VRSAVE
powerpc/mm: Drop unused externs for hpte_init_beat[_v3]()
powerpc/mm: Rename hpte_init_lpar() and move the fallback to a header
powerpc/mm: Fix build break when PPC_NATIVE=n
crypto: vmx - Convert to CPU feature based module autoloading
powerpc: Add module autoloading based on CPU features
powerpc/powernv/ioda: Fix endianness when reading TCEs
powerpc/mm: Add memory barrier in __hugepte_alloc()
powerpc/modules: Never restore r2 for a mprofile-kernel style mcount() call
powerpc/ftrace: Separate the heuristics for checking call sites
powerpc: Merge 32-bit and 64-bit setup_arch()
powerpc/64: Make a few boot functions __init
powerpc: Re-order setup_panic()
powerpc: Re-order the call to smp_setup_cpu_maps()
powerpc/32: Move cache info inits to a separate function
powerpc/64: Move the content of setup_system() to setup_arch()
...
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Linus Torvalds
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66304207cd |
Merge branch 'i2c/for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
"Here is the I2C pull request for 4.8:
- the core and i801 driver gained support for SMBus Host Notify
- core support for more than one address in DT
- i2c_add_adapter() has now better error messages. We can remove all
error messages from drivers calling it as a next step.
- bigger updates to rk3x driver to support rk3399 SoC
- the at24 eeprom driver got refactored and can now read special
variants with unique serials or fixed MAC addresses.
The rest is regular driver updates and bugfixes"
* 'i2c/for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (66 commits)
i2c: i801: use IS_ENABLED() instead of checking for built-in or module
Documentation: i2c: slave: give proper example for pm usage
Documentation: i2c: slave: describe buffer problems a bit better
i2c: bcm2835: Don't complain on -EPROBE_DEFER from getting our clock
i2c: i2c-smbus: drop useless stubs
i2c: efm32: fix a failure path in efm32_i2c_probe()
Revert "i2c: core: Cleanup I2C ACPI namespace"
Revert "i2c: core: Add function for finding the bus speed from ACPI"
i2c: Update the description of I2C_SMBUS
i2c: i2c-smbus: fix i2c_handle_smbus_host_notify documentation
eeprom: at24: tweak the loop_until_timeout() macro
eeprom: at24: add support for at24mac series
eeprom: at24: support reading the serial number for 24csxx
eeprom: at24: platform_data: use BIT() macro
eeprom: at24: split at24_eeprom_write() into specialized functions
eeprom: at24: split at24_eeprom_read() into specialized functions
eeprom: at24: hide the read/write loop behind a macro
eeprom: at24: call read/write functions via function pointers
eeprom: at24: coding style fixes
eeprom: at24: move at24_read() below at24_eeprom_write()
...
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Linus Torvalds
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468fc7ed55 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Unified UDP encapsulation offload methods for drivers, from
Alexander Duyck.
2) Make DSA binding more sane, from Andrew Lunn.
3) Support QCA9888 chips in ath10k, from Anilkumar Kolli.
4) Several workqueue usage cleanups, from Bhaktipriya Shridhar.
5) Add XDP (eXpress Data Path), essentially running BPF programs on RX
packets as soon as the device sees them, with the option to mirror
the packet on TX via the same interface. From Brenden Blanco and
others.
6) Allow qdisc/class stats dumps to run lockless, from Eric Dumazet.
7) Add VLAN support to b53 and bcm_sf2, from Florian Fainelli.
8) Simplify netlink conntrack entry layout, from Florian Westphal.
9) Add ipv4 forwarding support to mlxsw spectrum driver, from Ido
Schimmel, Yotam Gigi, and Jiri Pirko.
10) Add SKB array infrastructure and convert tun and macvtap over to it.
From Michael S Tsirkin and Jason Wang.
11) Support qdisc packet injection in pktgen, from John Fastabend.
12) Add neighbour monitoring framework to TIPC, from Jon Paul Maloy.
13) Add NV congestion control support to TCP, from Lawrence Brakmo.
14) Add GSO support to SCTP, from Marcelo Ricardo Leitner.
15) Allow GRO and RPS to function on macsec devices, from Paolo Abeni.
16) Support MPLS over IPV4, from Simon Horman.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
xgene: Fix build warning with ACPI disabled.
be2net: perform temperature query in adapter regardless of its interface state
l2tp: Correctly return -EBADF from pppol2tp_getname.
net/mlx5_core/health: Remove deprecated create_singlethread_workqueue
net: ipmr/ip6mr: update lastuse on entry change
macsec: ensure rx_sa is set when validation is disabled
tipc: dump monitor attributes
tipc: add a function to get the bearer name
tipc: get monitor threshold for the cluster
tipc: make cluster size threshold for monitoring configurable
tipc: introduce constants for tipc address validation
net: neigh: disallow transition to NUD_STALE if lladdr is unchanged in neigh_update()
MAINTAINERS: xgene: Add driver and documentation path
Documentation: dtb: xgene: Add MDIO node
dtb: xgene: Add MDIO node
drivers: net: xgene: ethtool: Use phy_ethtool_gset and sset
drivers: net: xgene: Use exported functions
drivers: net: xgene: Enable MDIO driver
drivers: net: xgene: Add backward compatibility
drivers: net: phy: xgene: Add MDIO driver
...
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Andrew Donnellan
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8fbaa51d43 |
cxl: fix potential NULL dereference in free_adapter()
If kzalloc() fails when allocating adapter->guest in
cxl_guest_init_adapter(), we call free_adapter() before erroring out.
free_adapter() in turn attempts to dereference adapter->guest, which in
this case is NULL.
In free_adapter(), skip the adapter->guest cleanup if adapter->guest is
NULL.
Fixes:
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Andrew Donnellan
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1e44727a0b |
cxl: remove dead Kconfig options
Remove the CXL_KERNEL_API and CXL_EEH Kconfig options, as they were only needed to coordinate the merging of the cxlflash driver. Also remove the stub implementation of cxl_perst_reloads_same_image() in cxlflash which is only used if CXL_EEH isn't defined (i.e. never). Suggested-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Bartosz Golaszewski
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24da3cc0e2 |
eeprom: at24: tweak the loop_until_timeout() macro
loop_until_timeout() replaced a do {} while loop in the at24 driver
with a for loop which, under certain circumstances (such as heavy load
or low value of the write_timeout argument), can lead to the code in
the loop never being executed.
Make sure that at least one iteration of the code enclosed within
loop_until_timeout() is always executed.
Suggested-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Geert Uytterhoeven
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4360fa22ad |
drivers: misc: ti-st: Use int instead of fuzzy char for callback status
On mips and parisc:
drivers/bluetooth/btwilink.c: In function 'ti_st_open':
drivers/bluetooth/btwilink.c:174:21: warning: overflow in implicit constant conversion [-Woverflow]
hst->reg_status = -EINPROGRESS;
drivers/nfc/nfcwilink.c: In function 'nfcwilink_open':
drivers/nfc/nfcwilink.c:396:31: warning: overflow in implicit constant conversion [-Woverflow]
drv->st_register_cb_status = -EINPROGRESS;
There are actually two issues:
1. Whether "char" is signed or unsigned depends on the architecture.
As the completion callback data is used to pass a (negative) error
code, it should always be signed.
2. EINPROGRESS is 150 on mips, 245 on parisc.
Hence -EINPROGRESS doesn't fit in a signed 8-bit number.
Change the callback status from "char" to "int" to fix these.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Bartosz Golaszewski
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0b813658c1 |
eeprom: at24: add support for at24mac series
Add a new read function to the at24 driver allowing to retrieve the factory-programmed mac address embedded in chips from the at24mac family. These chips can be instantiated similarily to the at24cs family, except that there's no way of having access to both the serial number and the mac address at the same time - the user must instantiate either an at24cs or at24mac device as both special memory areas are accessible on the same slave address. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Bartosz Golaszewski
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818d0220d8 |
eeprom: at24: support reading the serial number for 24csxx
The chips from the at24cs family have two memory areas - a regular read-write block and a read-only area containing the serial number. The latter is visible on a different slave address (the address of the rw memory block + 0x08). In order to access both blocks the user needs to instantiate a regular at24c device for the rw block address and a corresponding at24cs device on the serial number block address. Add a function that allows to access the serial number and assign it to at24->read_func if the chip allows serial number read operations and the driver was passed the relevant flag for this device. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Bartosz Golaszewski
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cd0c861542 |
eeprom: at24: split at24_eeprom_write() into specialized functions
Split at24_eeprom_write() into three smaller functions - one for the i2c operations and two for the smbus extensions (separate routines for block and byte transfers). Assign them in at24_probe() depending on the bus capabilities. Also: in order to avoid duplications move code adjusting the count argument into a separate function and use it for i2c and smbus block writes (no need for a roll-over for byte writes as we're always writing one byte). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Bartosz Golaszewski
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9afd6866bf |
eeprom: at24: split at24_eeprom_read() into specialized functions
Split at24_eeprom_read() into two smaller functions - one for the i2c operations and one for the smbus extensions. Assign them in at24_probe() depending on the bus capabilities. Also: in order to avoid duplications move the comments related to offset calculations above the at24_translate_offset() routine. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Bartosz Golaszewski
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9344a81efb |
eeprom: at24: hide the read/write loop behind a macro
Before splitting the read/write routines into smaller, more specialized functions, unduplicate some code in advance. Use a 'for' loop instead of 'do while' when waiting for the previous write to complete and hide it behind a macro. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Bartosz Golaszewski
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318aa9c66b |
eeprom: at24: call read/write functions via function pointers
The first step in simplifying the read and write functions is to call them via function pointers stored in at24_data. When we eventually split the routines into smaller ones (depending on whether they use smbus or i2c operations) we'll simply assign them to said pointers instead of checking the flags at runtime every time we read/write. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Bartosz Golaszewski
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2da78ac3ba |
eeprom: at24: coding style fixes
Align the arguments in broken lines with the arguments list's opening brackets and make checkpatch.pl happy by converting 'unsigned' into 'unsigned int'. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Bartosz Golaszewski
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d5bc004798 |
eeprom: at24: move at24_read() below at24_eeprom_write()
In preparation for splitting at24_eeprom_write() & at24_eeprom_read() into smaller, specialized routines move at24_read() below, so that it won't be intertwined with the low-level EEPROM accessors. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Bartosz Golaszewski
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b0b9f7bf9d |
eeprom: at24: improve the device_id table readability
As part of the preparation for introducing support for more chips, improve the readability of the device table by separating columns with tabs. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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Kees Cook
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6d2e91a662 |
lkdtm: silence warnings about function declarations
When building under W=1, the lack of lkdtm.h in lkdtm_usercopy.c and lkdtm_rodata.c was discovered. This fixes the issue and consolidates the common header and the pr_fmt macro for simplicity and regularity across each test source file. Signed-off-by: Kees Cook <keescook@chromium.org> |
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Arnd Bergmann
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2b271cb720 |
lkdtm: hide unused functions
A conversion of the lkdtm core module added an "#ifdef CONFIG_KPROBES" check,
but a number of functions then become unused:
drivers/misc/lkdtm_core.c:340:16: error: 'lkdtm_debugfs_entry' defined but not used [-Werror=unused-function]
drivers/misc/lkdtm_core.c:122:12: error: 'jp_generic_ide_ioctl' defined but not used [-Werror=unused-function]
drivers/misc/lkdtm_core.c:114:12: error: 'jp_scsi_dispatch_cmd' defined but not used [-Werror=unused-function]
drivers/misc/lkdtm_core.c:106:12: error: 'jp_hrtimer_start' defined but not used [-Werror=unused-function]
drivers/misc/lkdtm_core.c:97:22: error: 'jp_shrink_inactive_list' defined but not used [-Werror=unused-function]
drivers/misc/lkdtm_core.c:89:13: error: 'jp_ll_rw_block' defined but not used [-Werror=unused-function]
drivers/misc/lkdtm_core.c:83:13: error: 'jp_tasklet_action' defined but not used [-Werror=unused-function]
drivers/misc/lkdtm_core.c:75:20: error: 'jp_handle_irq_event' defined but not used [-Werror=unused-function]
drivers/misc/lkdtm_core.c:68:21: error: 'jp_do_irq' defined but not used [-Werror=unused-function]
This adds the same #ifdef everywhere. There is probably a better way to do the
same thing, but for now this avoids the new warnings.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes:
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Andrew Donnellan
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b0b5e5918a |
cxl: Add cxl_check_and_switch_mode() API to switch bi-modal cards
Add a new API, cxl_check_and_switch_mode() to allow for switching of
bi-modal CAPI cards, such as the Mellanox CX-4 network card.
When a driver requests to switch a card to CAPI mode, use PCI hotplug
infrastructure to remove all PCI devices underneath the slot. We then write
an updated mode control register to the CAPI VSEC, hot reset the card, and
reprobe the card.
As the card may present a different set of PCI devices after the mode
switch, use the infrastructure provided by the pnv_php driver and the OPAL
PCI slot management facilities to ensure that:
* the old devices are removed from both the OPAL and Linux device trees
* the new devices are probed by OPAL and added to the OPAL device tree
* the new devices are added to the Linux device tree and probed through
the regular PCI device probe path
As such, introduce a new option, CONFIG_CXL_BIMODAL, with a dependency on
the pnv_php driver.
Refactor existing code that touches the mode control register in the
regular single mode case into a new function, setup_cxl_protocol_area().
Co-authored-by: Ian Munsie <imunsie@au1.ibm.com>
Cc: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Ian Munsie
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f67a6722d6 |
cxl: Workaround PE=0 hardware limitation in Mellanox CX4
The CX4 card cannot cope with a context with PE=0 due to a hardware limitation, resulting in: [ 34.166577] command failed, status limits exceeded(0x8), syndrome 0x5a7939 [ 34.166580] mlx5_core 0000:01:00.1: Failed allocating uar, aborting Since the kernel API allocates a default context very early during device init that will almost certainly get Process Element ID 0 there is no easy way for us to extend the API to allow the Mellanox to inform us of this limitation ahead of time. Instead, work around the issue by extending the XSL structure to include a minimum PE to allocate. Although the bug is not in the XSL, it is the easiest place to work around this limitation given that the CX4 is currently the only card that uses an XSL. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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a2f67d5ee8 |
cxl: Add support for interrupts on the Mellanox CX4
The Mellanox CX4 in cxl mode uses a hybrid interrupt model, where interrupts are routed from the networking hardware to the XSL using the MSIX table, and from there will be transformed back into an MSIX interrupt using the cxl style interrupts (i.e. using IVTE entries and ranges to map a PE and AFU interrupt number to an MSIX address). We want to hide the implementation details of cxl interrupts as much as possible. To this end, we use a special version of the MSI setup & teardown routines in the PHB while in cxl mode to allocate the cxl interrupts and configure the IVTE entries in the process element. This function does not configure the MSIX table - the CX4 card uses a custom format in that table and it would not be appropriate to fill that out in generic code. The rest of the functionality is similar to the "Full MSI-X mode" described in the CAIA, and this could be easily extended to support other adapters that use that mode in the future. The interrupts will be associated with the default context. If the maximum number of interrupts per context has been limited (e.g. by the mlx5 driver), it will automatically allocate additional kernel contexts to associate extra interrupts as required. These contexts will be started using the same WED that was used to start the default context. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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cbce0917e2 |
cxl: Add preliminary workaround for CX4 interrupt limitation
The Mellanox CX4 has a hardware limitation where only 4 bits of the AFU interrupt number can be passed to the XSL when sending an interrupt, limiting it to only 15 interrupts per context (AFU interrupt number 0 is invalid). In order to overcome this, we will allocate additional contexts linked to the default context as extra address space for the extra interrupts - this will be implemented in the next patch. This patch adds the preliminary support to allow this, by way of adding a linked list in the context structure that we use to keep track of the contexts dedicated to interrupts, and an API to simultaneously iterate over the related context structures, AFU interrupt numbers and hardware interrupt numbers. The point of using a single API to iterate these is to hide some of the details of the iteration from external code, and to reduce the number of APIs that need to be exported via base.c to allow built in code to call. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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79384e4b71 |
cxl: Add kernel APIs to get & set the max irqs per context
These APIs will be used by the Mellanox CX4 support. While they function standalone to configure existing behaviour, their primary purpose is to allow the Mellanox driver to inform the cxl driver of a hardware limitation, which will be used in a future patch. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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317f5ef1b3 |
cxl: Add support for using the kernel API with a real PHB
This hooks up support for using the kernel API with a real PHB. After the AFU initialisation has completed it calls into the PHB code to pass it the AFU that will be used by other peer physical functions on the adapter. The cxl_pci_to_afu API is extended to work with peer PCI devices, retrieving the peer AFU from the PHB. This API may also now return an error if it is called on a PCI device that is not associated with either a cxl vPHB or a peer PCI device to an AFU, and this error is propagated down. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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e4f5fc001a |
cxl: Do not create vPHB if there are no AFU configuration records
The vPHB model of the cxl kernel API is a hierarchy where the AFU is represented by the vPHB, and it's AFU configuration records are exposed as functions under that vPHB. If there are no AFU configuration records we will create a vPHB with nothing under it, which is a waste of resources and will opt us into EEH handling despite not having anything special to handle. This also does not make sense for cards using the peer model of the cxl kernel API, where the other functions of the device are exposed via additional peer physical functions rather than AFU configuration records. This model will also not work with the existing EEH handling in the cxl driver, as that is designed around the vPHB model. Skip creating the vPHB for AFUs without any AFU configuration records, and opt out of EEH handling for them. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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a19bd79e31 |
cxl: Allow a default context to be associated with an external pci_dev
The cxl kernel API has a concept of a default context associated with each PCI device under the virtual PHB. The Mellanox CX4 will also use the cxl kernel API, but it does not use a virtual PHB - rather, the AFU appears as a physical function as a peer to the networking functions. In order to allow the kernel API to work with those networking functions, we will need to associate a default context with them as well. To this end, refactor the corresponding code to do this in vphb.c and export it so that it can be called from the PHB code. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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62ccf2d2ef |
cxl: Move cxl_afu_get / cxl_afu_put to base
The Mellanox CX4 uses a model where the AFU is one physical function of the device, and is used by other peer physical functions of the same device. This will require those other devices to grab a reference on the AFU when they are initialised to make sure that it does not go away during their lifetime. Move the AFU refcount functions to base.c so they can be called from the PHB code. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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48b3adf334 |
cxl: Enable bus mastering for devices using CAPP DMA mode
Devices that use CAPP DMA mode (such as the Mellanox CX4) require bus master to be enabled in order for the CAPI traffic to flow. This should be harmless to enable for other cxl devices, so unconditionally enable it in the adapter init flow. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Ian Munsie
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4e56f858bd |
cxl: Add cxl_slot_is_supported API
This extends the check that the adapter is in a CAPI capable slot so that it may be called by external users in the kernel API. This will be used by the upcoming Mellanox CX4 support, which needs to know ahead of time if the card can be switched to cxl mode so that it can leave it in PCI mode if it is not. This API takes a parameter to check if CAPP DMA mode is supported, which it currently only allows on P8NVL systems, since that mode currently has issues accessing memory < 4GB on P8, and we cannot realistically avoid that. This API does not currently check if a CAPP unit is available (i.e. not already assigned to another PHB) on P8. Doing so would be racy since it is assigned on a first come first serve basis, and so long as CAPP DMA mode is not supported on P8 we don't need this, since the only anticipated user of this API requires CAPP DMA mode. Cc: Philippe Bergheaud <felix@linux.vnet.ibm.com> Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Wei Yongjun
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fc9f75ef2f |
cxl: Use for_each_compatible_node() macro
Use for_each_compatible_node() macro instead of open coding it. Generated by Coccinelle. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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Philippe Bergheaud
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3b3dcd61fa |
cxl: Ignore CAPI adapters misplaced in switched slots
One should not attempt to switch a PHB into CAPI mode if there is a switch between the PHB and the adapter. This patch modifies the cxl driver to ignore CAPI adapters misplaced in switched slots. Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com> Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |