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2020-04-09x86: add comments about the binutils version to support code in as-instrMasahiro Yamada
We raise the minimal supported binutils version from time to time. The last bump was commit 1fb12b35e5ff ("kbuild: Raise the minimum required binutils version to 2.21"). We have these as-instr tests because binutils 2.21 does not support them. When we bump the binutils version next time, this will be a good hint to find out which one can be dropped. As for the Clang/LLVM builds, we require very new LLVM version, so the LLVM integrated assembler supports all of them. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Nick Desaulniers <ndesaulniers@google.com>
2020-04-09x86: probe assembler capabilities via kconfig instead of makefileJason A. Donenfeld
Doing this probing inside of the Makefiles means we have a maze of ifdefs inside the source code and child Makefiles that need to make proper decisions on this too. Instead, we do it at Kconfig time, like many other compiler and assembler options, which allows us to set up the dependencies normally for full compilation units. In the process, the ADX test changes to use %eax instead of %r10 so that it's valid in both 32-bit and 64-bit mode. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-04-09drm/i915: remove always-defined CONFIG_AS_MOVNTDQAMasahiro Yamada
CONFIG_AS_MOVNTDQA was introduced by commit 0b1de5d58e19 ("drm/i915: Use SSE4.1 movntdqa to accelerate reads from WC memory"). We raise the minimal supported binutils version from time to time. The last bump was commit 1fb12b35e5ff ("kbuild: Raise the minimum required binutils version to 2.21"). I confirmed the code in $(call as-instr,...) can be assembled by the binutils 2.21 assembler and also by LLVM integrated assembler. Remove CONFIG_AS_MOVNTDQA, which is always defined. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Jani Nikula <jani.nikula@intel.com>
2020-04-09x86: remove always-defined CONFIG_AS_AVXMasahiro Yamada
CONFIG_AS_AVX was introduced by commit ea4d26ae24e5 ("raid5: add AVX optimized RAID5 checksumming"). We raise the minimal supported binutils version from time to time. The last bump was commit 1fb12b35e5ff ("kbuild: Raise the minimum required binutils version to 2.21"). I confirmed the code in $(call as-instr,...) can be assembled by the binutils 2.21 assembler and also by LLVM integrated assembler. Remove CONFIG_AS_AVX, which is always defined. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Ingo Molnar <mingo@kernel.org>
2020-04-09x86: remove always-defined CONFIG_AS_SSSE3Masahiro Yamada
CONFIG_AS_SSSE3 was introduced by commit 75aaf4c3e6a4 ("x86/raid6: correctly check for assembler capabilities"). We raise the minimal supported binutils version from time to time. The last bump was commit 1fb12b35e5ff ("kbuild: Raise the minimum required binutils version to 2.21"). I confirmed the code in $(call as-instr,...) can be assembled by the binutils 2.21 assembler and also by LLVM integrated assembler. Remove CONFIG_AS_SSSE3, which is always defined. I added ifdef CONFIG_X86 to lib/raid6/algos.c to avoid link errors on non-x86 architectures. lib/raid6/algos.c is built not only for the kernel but also for testing the library code from userspace. I added -DCONFIG_X86 to lib/raid6/test/Makefile to cator to this usecase. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Ingo Molnar <mingo@kernel.org>
2020-04-09x86: remove always-defined CONFIG_AS_CFI_SECTIONSMasahiro Yamada
CONFIG_AS_CFI_SECTIONS was introduced by commit 9e565292270a ("x86: Use .cfi_sections for assembly code"). We raise the minimal supported binutils version from time to time. The last bump was commit 1fb12b35e5ff ("kbuild: Raise the minimum required binutils version to 2.21"). I confirmed the code in $(call as-instr,...) can be assembled by the binutils 2.21 assembler and also by LLVM integrated assembler. Remove CONFIG_AS_CFI_SECTIONS, which is always defined. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Ingo Molnar <mingo@kernel.org>
2020-04-09x86: remove unneeded (CONFIG_AS_)CFI_SIGNAL_FRAMEMasahiro Yamada
Commit 131484c8da97 ("x86/debug: Remove perpetually broken, unmaintainable dwarf annotations") removes all the users of CFI_SIGNAL_FRAME. Remove the CFI_SIGNAL_FRAME and CONFIG_AS_CFI_SIGNAL_FRAME. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Ingo Molnar <mingo@kernel.org>
2020-04-09x86: remove always-defined CONFIG_AS_CFIMasahiro Yamada
CONFIG_AS_CFI was introduced by commit e2414910f212 ("[PATCH] x86: Detect CFI support in the assembler at runtime"), and extended by commit f0f12d85af85 ("x86_64: Check for .cfi_rel_offset in CFI probe"). We raise the minimal supported binutils version from time to time. The last bump was commit 1fb12b35e5ff ("kbuild: Raise the minimum required binutils version to 2.21"). I confirmed the code in $(call as-instr,...) can be assembled by the binutils 2.21 assembler and also by LLVM integrated assembler. Remove CONFIG_AS_CFI, which is always defined. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Ingo Molnar <mingo@kernel.org>
2020-04-09x86: remove unneeded defined(__ASSEMBLY__) check from asm/dwarf2.hMasahiro Yamada
This header file has the following check at the top: #ifndef __ASSEMBLY__ #warning "asm/dwarf2.h should be only included in pure assembly files" #endif So, we expect defined(__ASSEMBLY__) is always true. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Ingo Molnar <mingo@kernel.org>
2020-04-09lib/raid6/test: fix build on distros whose /bin/sh is not bashMasahiro Yamada
You can build a user-space test program for the raid6 library code, like this: $ cd lib/raid6/test $ make The command in $(shell ...) function is evaluated by /bin/sh by default. (or, you can specify the shell by passing SHELL=<shell> from command line) Currently '>&/dev/null' is used to sink both stdout and stderr. Because this code is bash-ism, it only works when /bin/sh is a symbolic link to bash (this is the case on RHEL etc.) This does not work on Ubuntu where /bin/sh is a symbolic link to dash. I see lots of /bin/sh: 1: Syntax error: Bad fd number and warning "your version of binutils lacks ... support" Replace it with portable '>/dev/null 2>&1'. Fixes: 4f8c55c5ad49 ("lib/raid6: build proper files on corresponding arch") Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Acked-by: H. Peter Anvin (Intel) <hpa@zytor.com> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2020-04-09sh: remove unneeded uapi asm-generic wrappersMasahiro Yamada
These are listed in include/uapi/asm-generic/Kbuild, so Kbuild will automatically generate them. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-04-09h8300: move definition of __kernel_size_t etc. to posix_types.hMasahiro Yamada
These types should be defined in posix_types.h, not in bitsperlong.h . With these defines moved, h8300-specific bitsperlong.h is no longer needed since Kbuild will automatically create a wrapper of include/uapi/asm-generic/bitsperlong.h Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-04-09sh: use __builtin_constant_p() directly instead of IS_IMMEDIATE()Masahiro Yamada
__builtin_constant_p(nr) is used everywhere now. It does not make much sense to define IS_IMMEDIATE() as its alias. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-04-08Merge branch 'nvme-5.7' of git://git.infradead.org/nvme into block-5.7Jens Axboe
Pull NVMe fixes from Christoph. * 'nvme-5.7' of git://git.infradead.org/nvme: nvmet-rdma: fix double free of rdma queue nvme-fc: Revert "add module to ops template to allow module references" nvme: fix deadlock caused by ANA update wrong locking nvmet-rdma: fix bonding failover possible NULL deref nvmet: fix NULL dereference when removing a referral nvme: inherit stable pages constraint in the mpath stack device nvme-tcp: fix possible crash in recv error flow nvme-tcp: don't poll a non-live queue nvme-tcp: fix possible crash in write_zeroes processing nvmet-fc: fix typo in comment nvme-rdma: Replace comma with a semicolon nvme-fcloop: fix deallocation of working context nvme: fix compat address handling in several ioctls
2020-04-08ALSA: hda: Add driver blacklistTakashi Iwai
The recent AMD platform exposes an HD-audio bus but without any actual codecs, which is internally tied with a USB-audio device, supposedly. It results in "no codecs" error of HD-audio bus driver, and it's nothing but a waste of resources. This patch introduces a static blacklist table for skipping such a known bogus PCI SSID entry. As of writing this patch, the known SSIDs are: * 1043:874f - ASUS ROG Zenith II / Strix * 1462:cb59 - MSI TRX40 Creator * 1462:cb60 - MSI TRX40 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206543 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200408140449.22319-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-08ALSA: usb-audio: Add mixer workaround for TRX40 and coTakashi Iwai
Some recent boards (supposedly with a new AMD platform) contain the USB audio class 2 device that is often tied with HD-audio. The device exposes an Input Gain Pad control (id=19, control=12) but this node doesn't behave correctly, returning an error for each inquiry of GET_MIN and GET_MAX that should have been mandatory. As a workaround, simply ignore this node by adding a usbmix_name_map table entry. The currently known devices are: * 0414:a002 - Gigabyte TRX40 Aorus Pro WiFi * 0b05:1916 - ASUS ROG Zenith II * 0b05:1917 - ASUS ROG Strix * 0db0:0d64 - MSI TRX40 Creator * 0db0:543d - MSI TRX40 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206543 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200408140449.22319-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-08ALSA: hda/realtek - Add quirk for MSI GL63Takashi Iwai
MSI GL63 laptop requires the similar quirk like other MSI models, ALC1220_FIXUP_CLEVO_P950. The board BIOS doesn't provide a PCI SSID for the device, hence we need to take the codec SSID (1462:1275) instead. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207157 Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200408135645.21896-1-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-04-08orangefs: don't mess with I_DIRTY_TIMES in orangefs_flushMike Marshall
Christoph Hellwig noticed that we were doing some unnecessary work in orangefs_flush: orangefs_flush just writes out data on every close(2) call. There is no need to change anything about the dirty state, especially as orangefs doesn't treat I_DIRTY_TIMES special in any way. The code seems to come from partially open coding vfs_fsync. He sent in a patch with the above commit message and also a patch that was a reversion of another Orangefs patch I had sent upstream a while ago. I had to fix his reversion patch so that it would compile which caused his "don't mess with I_DIRTY_TIMES" patch to fail to apply. So here I have just remade his patch and applied it after the fixed reversion patch. Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2020-04-08orangefs: get rid of knob code...Mike Marshall
Christoph Hellwig sent in a reversion of "orangefs: remember count when reading." because: ->read_iter calls can race with each other and one or more ->flush calls. Remove the the scheme to store the read count in the file private data as is is completely racy and can cause use after free or double free conditions Christoph's reversion caused Orangefs not to work or to compile. I added a patch that fixed that, but intel's kbuild test robot pointed out that sending Christoph's patch followed by my patch upstream, it would break bisection because of the failure to compile. So I have combined the reversion plus my patch... here's the commit message that was in my patch: Logically, optimal Orangefs "pages" are 4 megabytes. Reading large Orangefs files 4096 bytes at a time is like trying to kick a dead whale down the beach. Before Christoph's "Revert orangefs: remember count when reading." I tried to give users a knob whereby they could, for example, use "count" in read(2) or bs with dd(1) to get whatever they considered an appropriate amount of bytes at a time from Orangefs and fill as many page cache pages as they could at once. Without the racy code that Christoph reverted Orangefs won't even compile, much less work. So this replaces the logic that used the private file data that Christoph reverted with a static number of bytes to read from Orangefs. I ran tests like the following to determine what a reasonable static number of bytes might be: dd if=/pvfsmnt/asdf of=/dev/null count=128 bs=4194304 dd if=/pvfsmnt/asdf of=/dev/null count=256 bs=2097152 dd if=/pvfsmnt/asdf of=/dev/null count=512 bs=1048576 . . . dd if=/pvfsmnt/asdf of=/dev/null count=4194304 bs=128 Reads seem faster using the static number, so my "knob code" wasn't just racy, it wasn't even a good idea... Signed-off-by: Mike Marshall <hubcap@omnibond.com> Reported-by: kbuild test robot <lkp@intel.com>
2020-04-08drm/i915/dp: Program vswing, pre-emphasis, test-patternAnimesh Manna
This patch process phy compliance request by programming requested vswing, pre-emphasis and test pattern. v1: Initial patch. v2: Fixes added during testing with test-scope. (Khaled/Clint/Manasi) - pipe used as argument during registers programming instead of port. - TRANS_CONF must be disable/enable as well during ddi disable/enable. - harcoded PLTPAT 80 bit custom pattern as the DPR-100 does not set it in the sink’s DPCDs - TRANS_DDI_FUNC_CTL DDI_Select (Bits 27:30) need to reset/set during disable/enable. v3: used macros instead of numbers and some cosmetic changes. [Manasi] Cc: Clinton Taylor <Clinton.A.Taylor@intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Khaled Almahallawy <khaled.almahallawy@intel.com> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200316103759.12867-8-animesh.manna@intel.com
2020-04-08drm/i915/dp: Register definition for DP compliance registerAnimesh Manna
DP_COMP_CTL and DP_COMP_PAT register used to program DP compliance pattern. v1: Initial patch. v2: used pipe instead of port in macro definition. [Manasi] v3: used trans_offset for offset calculation. [Manasi] v4: Used MMIO_PIPE for evenly spaced register offset instead MMIO_PIPE2. [Ville] Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200324051111.29398-1-animesh.manna@intel.com
2020-04-08drm/i915/dp: Add debugfs entry for DP phy complianceAnimesh Manna
These debugfs entry will help testapp to understand the test request during dp phy compliance mode. Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200316103759.12867-6-animesh.manna@intel.com
2020-04-08drm/i915/dp: Preparation for DP phy compliance auto testAnimesh Manna
During DP phy compliance auto test mode, sink will request combination of different test pattern with differnt level of vswing, pre-emphasis. Function added to prepare for it. Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200316103759.12867-5-animesh.manna@intel.com
2020-04-08drm/i915/dp: Made intel_dp_adjust_train() non-staticAnimesh Manna
vswing/pre-emphasis adjustment calculation is needed in processing of auto phy compliance request other than link training, so have made non-static function. No functional change. v1: initial patch. v2: - used "intel_dp" prefix in function name. (Jani) - used array notation instead pointer for link_status. (Ville) v3: Scrapped the initial patch, modified commit description accordingly. - made non-static function and used intel_dp prefix. (Jani, Manasi) Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200316103759.12867-4-animesh.manna@intel.com
2020-04-08drm/dp: get/set phy compliance patternAnimesh Manna
During phy compliance auto test mode source need to read requested test pattern from sink through DPCD. After processing the request source need to set the pattern. So set/get method added in drm layer as it is DP protocol. v2: As per review feedback from Manasi on RFC version, - added dp revision as function argument in set_phy_pattern api. - used int for link_rate and u8 for lane_count to align with existing code. v3: As per review feedback from Harry, - used sizeof() instead of magic number. - corrected kernel-doc for drm_dp_phy_test_params structure. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200316103759.12867-3-animesh.manna@intel.com
2020-04-08drm/amd/display: Align macro name as per DP specAnimesh Manna
[Why]: Aligh with DP spec wanted to follow same naming convention. [How]: Changed the macro name of the dpcd address used for getting requested test-pattern. Cc: Harry Wentland <harry.wentland@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Animesh Manna <animesh.manna@intel.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200316103759.12867-2-animesh.manna@intel.com
2020-04-08drm/i915/selftests: Take an explicit ref for rq->batchChris Wilson
Since we are peeking into the batch object of the request, it is beholden on us to hold a reference to it. Closes: https://gitlab.freedesktop.org/drm/intel/issues/1634 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200408091723.28937-1-chris@chris-wilson.co.uk
2020-04-08drm/i915/gt: Mark up racy check of breadcrumb irq enabledChris Wilson
We control b->irq_enabled inside the b->irq_lock, but we check before entering the spinlock whether or not the interrupt is currently unmasked. [ 1511.735208] BUG: KCSAN: data-race in __intel_breadcrumbs_disarm_irq [i915] / intel_engine_disarm_breadcrumbs [i915] [ 1511.735231] [ 1511.735242] write to 0xffff8881f75fc214 of 1 bytes by interrupt on cpu 2: [ 1511.735440] __intel_breadcrumbs_disarm_irq+0x4b/0x160 [i915] [ 1511.735635] signal_irq_work+0x337/0x710 [i915] [ 1511.735652] irq_work_run_list+0xd7/0x110 [ 1511.735666] irq_work_run+0x1d/0x50 [ 1511.735681] smp_irq_work_interrupt+0x21/0x30 [ 1511.735701] irq_work_interrupt+0xf/0x20 [ 1511.735722] __do_softirq+0x6f/0x206 [ 1511.735736] irq_exit+0xcd/0xe0 [ 1511.735756] do_IRQ+0x44/0xc0 [ 1511.735773] ret_from_intr+0x0/0x1c [ 1511.735787] schedule+0x0/0xb0 [ 1511.735803] worker_thread+0x194/0x670 [ 1511.735823] kthread+0x19a/0x1e0 [ 1511.735837] ret_from_fork+0x1f/0x30 [ 1511.735848] [ 1511.735867] read to 0xffff8881f75fc214 of 1 bytes by task 432 on cpu 1: [ 1511.736068] intel_engine_disarm_breadcrumbs+0x22/0x80 [i915] [ 1511.736263] __engine_park+0x107/0x5d0 [i915] [ 1511.736453] ____intel_wakeref_put_last+0x44/0x90 [i915] [ 1511.736648] __intel_wakeref_put_last+0x5a/0x70 [i915] [ 1511.736842] intel_context_exit_engine+0xf2/0x100 [i915] [ 1511.737044] i915_request_retire+0x6b2/0x770 [i915] [ 1511.737244] retire_requests+0x7a/0xd0 [i915] [ 1511.737438] intel_gt_retire_requests_timeout+0x3a7/0x6f0 [i915] [ 1511.737633] i915_drop_caches_set+0x1e7/0x260 [i915] [ 1511.737650] simple_attr_write+0xfa/0x110 [ 1511.737665] full_proxy_write+0x94/0xc0 [ 1511.737679] __vfs_write+0x4b/0x90 [ 1511.737697] vfs_write+0xfc/0x280 [ 1511.737718] ksys_write+0x78/0x100 [ 1511.737732] __x64_sys_write+0x44/0x60 [ 1511.737751] do_syscall_64+0x6e/0x2c0 [ 1511.737769] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200408092916.5355-1-chris@chris-wilson.co.uk
2020-04-08drm/i915/gt: Mark up racy read of intel_ring.headChris Wilson
The intel_ring.head is updated as the requests are retired, but is sampled at any time as we submit requests. Furthermore, it tracks RING_HEAD which is inherently asynchronous. [ 148.630314] BUG: KCSAN: data-race in execlists_dequeue [i915] / i915_request_retire [i915] [ 148.630349] [ 148.630374] write to 0xffff8881f4e28ddc of 4 bytes by task 90 on cpu 2: [ 148.630752] i915_request_retire+0xed/0x770 [i915] [ 148.631123] retire_requests+0x7a/0xd0 [i915] [ 148.631491] engine_retire+0xa6/0xe0 [i915] [ 148.631523] process_one_work+0x3af/0x640 [ 148.631552] worker_thread+0x80/0x670 [ 148.631581] kthread+0x19a/0x1e0 [ 148.631609] ret_from_fork+0x1f/0x30 [ 148.631629] [ 148.631652] read to 0xffff8881f4e28ddc of 4 bytes by task 14288 on cpu 3: [ 148.632019] execlists_dequeue+0x1300/0x1680 [i915] [ 148.632384] __execlists_submission_tasklet+0x48/0x60 [i915] [ 148.632770] execlists_submit_request+0x38e/0x3c0 [i915] [ 148.633146] submit_notify+0x8f/0xc0 [i915] [ 148.633512] __i915_sw_fence_complete+0x5d/0x3e0 [i915] [ 148.633875] i915_sw_fence_complete+0x58/0x80 [i915] [ 148.634238] i915_sw_fence_commit+0x16/0x20 [i915] [ 148.634613] __i915_request_queue+0x60/0x70 [i915] [ 148.634985] i915_gem_do_execbuffer+0x2de0/0x42b0 [i915] [ 148.635366] i915_gem_execbuffer2_ioctl+0x2ab/0x580 [i915] [ 148.635400] drm_ioctl_kernel+0xe9/0x130 [ 148.635429] drm_ioctl+0x27d/0x45e [ 148.635456] ksys_ioctl+0x89/0xb0 [ 148.635482] __x64_sys_ioctl+0x42/0x60 [ 148.635510] do_syscall_64+0x6e/0x2c0 [ 148.635542] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 645.071436] BUG: KCSAN: data-race in gen8_emit_fini_breadcrumb [i915] / i915_request_retire [i915] [ 645.071456] [ 645.071467] write to 0xffff8881efe403dc of 4 bytes by task 14668 on cpu 3: [ 645.071647] i915_request_retire+0xed/0x770 [i915] [ 645.071824] i915_request_create+0x6c/0x160 [i915] [ 645.072000] i915_gem_do_execbuffer+0x206d/0x42b0 [i915] [ 645.072177] i915_gem_execbuffer2_ioctl+0x2ab/0x580 [i915] [ 645.072194] drm_ioctl_kernel+0xe9/0x130 [ 645.072208] drm_ioctl+0x27d/0x45e [ 645.072222] ksys_ioctl+0x89/0xb0 [ 645.072235] __x64_sys_ioctl+0x42/0x60 [ 645.072248] do_syscall_64+0x6e/0x2c0 [ 645.072263] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 645.072275] [ 645.072285] read to 0xffff8881efe403dc of 4 bytes by interrupt on cpu 2: [ 645.072458] gen8_emit_fini_breadcrumb+0x158/0x300 [i915] [ 645.072636] __i915_request_submit+0x204/0x430 [i915] [ 645.072809] execlists_dequeue+0x8e1/0x1680 [i915] [ 645.072982] __execlists_submission_tasklet+0x48/0x60 [i915] [ 645.073154] execlists_submit_request+0x38e/0x3c0 [i915] [ 645.073330] submit_notify+0x8f/0xc0 [i915] [ 645.073499] __i915_sw_fence_complete+0x5d/0x3e0 [i915] [ 645.073668] i915_sw_fence_wake+0xc2/0x130 [i915] [ 645.073836] __i915_sw_fence_complete+0x2cf/0x3e0 [i915] [ 645.074006] i915_sw_fence_complete+0x58/0x80 [i915] [ 645.074175] dma_i915_sw_fence_wake+0x3e/0x80 [i915] [ 645.074344] signal_irq_work+0x62f/0x710 [i915] [ 645.074360] irq_work_run_list+0xd7/0x110 [ 645.074373] irq_work_run+0x1d/0x50 [ 645.074386] smp_irq_work_interrupt+0x21/0x30 [ 645.074400] irq_work_interrupt+0xf/0x20 [ 645.074414] _raw_spin_unlock_irqrestore+0x34/0x40 [ 645.074585] execlists_submission_tasklet+0xde/0x170 [i915] [ 645.074602] tasklet_action_common.isra.0+0x42/0x90 [ 645.074617] __do_softirq+0xc8/0x206 [ 645.074629] irq_exit+0xcd/0xe0 [ 645.074642] do_IRQ+0x44/0xc0 [ 645.074654] ret_from_intr+0x0/0x1c [ 645.074667] finish_task_switch+0x73/0x230 [ 645.074679] __schedule+0x1c5/0x4c0 [ 645.074691] schedule+0x45/0xb0 [ 645.074704] worker_thread+0x194/0x670 [ 645.074716] kthread+0x19a/0x1e0 [ 645.074729] ret_from_fork+0x1f/0x30 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200407221832.15465-1-chris@chris-wilson.co.uk
2020-04-08cpuidle-haltpoll: Fix small typoYihao Wu
Fix a spelling typo in cpuidle-haltpoll.c. Signed-off-by: Yihao Wu <wuyihao@linux.alibaba.com> [ rjw: Subject & changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-08ACPI, x86/boot: make acpi_nobgrt staticJason Yan
Fix the following sparse warning: arch/x86/kernel/acpi/boot.c:48:5: warning: symbol 'acpi_nobgrt' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-08Documentation: firmware-guide: ACPI: fix table alignment in namespace.rstVilhelm Prytz
Fixe the alignment in the ACPI block diagram (RST table) by adding missing spaces Signed-off-by: Vilhelm Prytz <vilhelm@prytznet.se> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-08drm/i915/uc: prefer struct drm_device based loggingJani Nikula
Prefer struct drm_device based logging over struct device based logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-17-jani.nikula@intel.com
2020-04-08drm/i915/gt: prefer struct drm_device based loggingJani Nikula
Prefer struct drm_device based logging over struct device based logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-16-jani.nikula@intel.com
2020-04-08drm/i915/stolen: prefer struct drm_device based loggingJani Nikula
Prefer struct drm_device based logging over struct device based logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-15-jani.nikula@intel.com
2020-04-08drm/i915/uncore: prefer struct drm_device based loggingJani Nikula
Prefer struct drm_device based logging over struct device based logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-14-jani.nikula@intel.com
2020-04-08drm/i915/dram: prefer struct drm_device based loggingJani Nikula
Prefer struct drm_device based logging over struct device based logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-13-jani.nikula@intel.com
2020-04-08drm/i915/pmu: prefer struct drm_device based loggingJani Nikula
Prefer struct drm_device based logging over struct device based logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-12-jani.nikula@intel.com
2020-04-08drm/i915/error: prefer struct drm_device based loggingJani Nikula
Prefer struct drm_device based logging over struct device based logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-11-jani.nikula@intel.com
2020-04-08drm/i915/uc: prefer struct drm_device based loggingJani Nikula
Prefer struct drm_device based logging over struct device based logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-10-jani.nikula@intel.com
2020-04-08drm/i915/switcheroo: use struct drm_device based loggingJani Nikula
Convert all the pr_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-9-jani.nikula@intel.com
2020-04-08drm/i915/state: use struct drm_device based loggingJani Nikula
Convert all the DRM_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-8-jani.nikula@intel.com
2020-04-08drm/i915/bw: use struct drm_device based loggingJani Nikula
Convert all the DRM_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-7-jani.nikula@intel.com
2020-04-08drm/i915/debugfs: use struct drm_device based loggingJani Nikula
Convert all the DRM_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-6-jani.nikula@intel.com
2020-04-08drm/i915/crt: use struct drm_device based loggingJani Nikula
Convert all the DRM_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-5-jani.nikula@intel.com
2020-04-08drm/i915/dp: use struct drm_device based loggingJani Nikula
Convert all the DRM_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Generated using the following semantic patch, originally written by Wambui Karuga <wambui.karugax@gmail.com>, with manual fixups on top: @@ identifier fn, T; @@ fn(...,struct drm_i915_private *T,...) { <+... ( -DRM_INFO( +drm_info(&T->drm, ...) | -DRM_NOTE( +drm_notice(&T->drm, ...) | -DRM_ERROR( +drm_err(&T->drm, ...) | -DRM_WARN( +drm_warn(&T->drm, ...) | -DRM_DEBUG_DRIVER( +drm_dbg(&T->drm, ...) | -DRM_DEBUG_KMS( +drm_dbg_kms(&T->drm, ...) | -DRM_DEBUG_ATOMIC( +drm_dbg_atomic(&T->drm, ...) ) ...+> } @@ identifier fn, T; @@ fn(...) { ... struct drm_i915_private *T = ...; <+... ( -DRM_INFO( +drm_info(&T->drm, ...) | -DRM_NOTE( +drm_notice(&T->drm, ...) | -DRM_ERROR( +drm_err(&T->drm, ...) | -DRM_WARN( +drm_warn(&T->drm, ...) | -DRM_DEBUG_DRIVER( +drm_dbg(&T->drm, ...) | -DRM_DEBUG_KMS( +drm_dbg_kms(&T->drm, ...) | -DRM_DEBUG_ATOMIC( +drm_dbg_atomic(&T->drm, ...) ) ...+> } Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-4-jani.nikula@intel.com
2020-04-08drm/i915/tc: use struct drm_device based loggingJani Nikula
Convert all the DRM_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Generated using the following semantic patch, originally written by Wambui Karuga <wambui.karugax@gmail.com>, with manual fixups on top: @@ identifier fn, T; @@ fn(...,struct drm_i915_private *T,...) { <+... ( -DRM_INFO( +drm_info(&T->drm, ...) | -DRM_NOTE( +drm_notice(&T->drm, ...) | -DRM_ERROR( +drm_err(&T->drm, ...) | -DRM_WARN( +drm_warn(&T->drm, ...) | -DRM_DEBUG_DRIVER( +drm_dbg(&T->drm, ...) | -DRM_DEBUG_KMS( +drm_dbg_kms(&T->drm, ...) | -DRM_DEBUG_ATOMIC( +drm_dbg_atomic(&T->drm, ...) ) ...+> } @@ identifier fn, T; @@ fn(...) { ... struct drm_i915_private *T = ...; <+... ( -DRM_INFO( +drm_info(&T->drm, ...) | -DRM_NOTE( +drm_notice(&T->drm, ...) | -DRM_ERROR( +drm_err(&T->drm, ...) | -DRM_WARN( +drm_warn(&T->drm, ...) | -DRM_DEBUG_DRIVER( +drm_dbg(&T->drm, ...) | -DRM_DEBUG_KMS( +drm_dbg_kms(&T->drm, ...) | -DRM_DEBUG_ATOMIC( +drm_dbg_atomic(&T->drm, ...) ) ...+> } Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-3-jani.nikula@intel.com
2020-04-08drm/i915/panel: use struct drm_device based loggingJani Nikula
Convert all the DRM_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Generated using the following semantic patch, originally written by Wambui Karuga <wambui.karugax@gmail.com>, with manual fixups on top: @@ identifier fn, T; @@ fn(...,struct drm_i915_private *T,...) { <+... ( -DRM_INFO( +drm_info(&T->drm, ...) | -DRM_NOTE( +drm_notice(&T->drm, ...) | -DRM_ERROR( +drm_err(&T->drm, ...) | -DRM_WARN( +drm_warn(&T->drm, ...) | -DRM_DEBUG_DRIVER( +drm_dbg(&T->drm, ...) | -DRM_DEBUG_KMS( +drm_dbg_kms(&T->drm, ...) | -DRM_DEBUG_ATOMIC( +drm_dbg_atomic(&T->drm, ...) ) ...+> } @@ identifier fn, T; @@ fn(...) { ... struct drm_i915_private *T = ...; <+... ( -DRM_INFO( +drm_info(&T->drm, ...) | -DRM_NOTE( +drm_notice(&T->drm, ...) | -DRM_ERROR( +drm_err(&T->drm, ...) | -DRM_WARN( +drm_warn(&T->drm, ...) | -DRM_DEBUG_DRIVER( +drm_dbg(&T->drm, ...) | -DRM_DEBUG_KMS( +drm_dbg_kms(&T->drm, ...) | -DRM_DEBUG_ATOMIC( +drm_dbg_atomic(&T->drm, ...) ) ...+> } Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-2-jani.nikula@intel.com
2020-04-08drm/i915/audio: use struct drm_device based loggingJani Nikula
Convert all the DRM_* logging macros to the struct drm_device based macros to provide device specific logging. No functional changes. Generated using the following semantic patch, originally written by Wambui Karuga <wambui.karugax@gmail.com>, with manual fixups on top: @@ identifier fn, T; @@ fn(...,struct drm_i915_private *T,...) { <+... ( -DRM_INFO( +drm_info(&T->drm, ...) | -DRM_NOTE( +drm_notice(&T->drm, ...) | -DRM_ERROR( +drm_err(&T->drm, ...) | -DRM_WARN( +drm_warn(&T->drm, ...) | -DRM_DEBUG_DRIVER( +drm_dbg(&T->drm, ...) | -DRM_DEBUG_KMS( +drm_dbg_kms(&T->drm, ...) | -DRM_DEBUG_ATOMIC( +drm_dbg_atomic(&T->drm, ...) ) ...+> } @@ identifier fn, T; @@ fn(...) { ... struct drm_i915_private *T = ...; <+... ( -DRM_INFO( +drm_info(&T->drm, ...) | -DRM_NOTE( +drm_notice(&T->drm, ...) | -DRM_ERROR( +drm_err(&T->drm, ...) | -DRM_WARN( +drm_warn(&T->drm, ...) | -DRM_DEBUG_DRIVER( +drm_dbg(&T->drm, ...) | -DRM_DEBUG_KMS( +drm_dbg_kms(&T->drm, ...) | -DRM_DEBUG_ATOMIC( +drm_dbg_atomic(&T->drm, ...) ) ...+> } Cc: Wambui Karuga <wambui.karugax@gmail.com> Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-1-jani.nikula@intel.com
2020-04-08locking/lockdep: Improve 'invalid wait context' splatPeter Zijlstra
The 'invalid wait context' splat doesn't print all the information required to reconstruct / validate the error, specifically the irq-context state is missing. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-20 12:44:21 +0000