Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.6.134 2023-05-30T22:18:21+00:00 2023-05-30T22:18:21+00:00 Michal Wajdeczko michal.wajdeczko@intel.com 2023-05-26T23:55:38+00:00 urn:sha1:a5606b94cd3d843b424a01e061dd0cadbcb0bb8c For easier debug of any unexpected error responses from GuC that might be related to non-blocking fast requests, track action code (and stack if under DEBUG_GUC config) for every H2G request. Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230526235538.2230780-4-John.C.Harrison@Intel.com 2021-07-06T08:10:07+00:00 Daniel Vetter daniel.vetter@ffwll.ch 2021-07-02T20:17:08+00:00 urn:sha1:7e8376f1d1272d1d12ea0b841ae05e21a9a574cc We're not consistently recommending these for developers only. I stumbled over this due to DRM_I915_LOW_LEVEL_TRACEPOINTS, which was added in commit 354d036fcf70654cff2e2cbdda54a835d219b9d2 Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Date: Tue Feb 21 11:01:42 2017 +0000 drm/i915/tracepoints: Add request submit and execute tracepoints to "alleviate the performance impact concerns." Which is nonsense. Tvrtko and Joonas pointed out on irc that the real (but undocumented reason) was stable abi concerns for tracepoints, see https://lwn.net/Articles/705270/ and the specific change that was blocked around tracepoints: https://lwn.net/Articles/442113/ Anyway to make it a notch clearer why we have this Kconfig option consistly add the "Recommended for driver developers only." to it and all the other debug options we have. Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210702201708.2075793-1-daniel.vetter@ffwll.ch 2021-02-08T21:56:36+00:00 Chris Wilson chris@chris-wilson.co.uk 2021-01-22T09:10:58+00:00 urn:sha1:2a8f20bb645cca835f9b9b615443e894e5d05d2e Let's not encourage everybody to build i915's debug code, and certainly not the build robots who need to scrutinise the production build. Since CI will complain if the debug build is broken, having the other build bots focus on the builds we don't cover ourselves should improve the build coverage. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 4f86975f539d ("drm/i915: Add DEBUG_GEM to the recommended CI config") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210122091058.5145-1-chris@chris-wilson.co.uk (cherry picked from commit c442f658299d59b327a4bf21457ec8ece936f133) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> 2021-01-19T11:54:44+00:00 Chris Wilson chris@chris-wilson.co.uk 2021-01-14T11:34:34+00:00 urn:sha1:03c62d886dd6d3dfebf59d385a37245fe667fe90 While immensely convenient for developing to only tackle the first error, and not be flooded by repeated or secondiary issues, many more casual testers are not setup to remotely capture debug traces. For those testers, it is more beneficial to keep the system running in the remote chance that they are able to extract the original debug logs. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210114113434.8229-2-chris@chris-wilson.co.uk 2021-01-19T11:49:45+00:00 Chris Wilson chris@chris-wilson.co.uk 2021-01-14T11:34:33+00:00 urn:sha1:4f86975f539d2b066d2b0854a23cf25c4565c0b7 Now that i915 compiles cleanly with Werror, we can enforce enabling DEBUG_GEM when selecting the default debug config. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Jani Nikula <jani.nikula@intel.com> Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210114113434.8229-1-chris@chris-wilson.co.uk 2020-10-21T12:32:28+00:00 Chris Wilson chris@chris-wilson.co.uk 2020-10-19T16:50:05+00:00 urn:sha1:3da3c5c1c9825c24168f27b021339e90af37e969 The GPU is trashing the low pages of its reserved memory upon reset. If we are using this memory for ringbuffers, then we will dutiful resubmit the trashed rings after the reset causing further resets, and worse. We must exclude this range from our own use. The value of 128KiB was found by empirical measurement (and verified now with a selftest) on gen9. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@vger.kernel.org Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201019165005.18128-2-chris@chris-wilson.co.uk (cherry picked from commit d3606757e611fbd48bb239e8c2fe9779b3f50035) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> 2019-12-11T09:13:50+00:00 Jani Nikula jani.nikula@intel.com 2019-12-11T08:35:37+00:00 urn:sha1:023265ed75d8792ca1d555430a8985511d3f8788 Sync up with v5.5-rc1 to get the updated lock_release() API among other things. Fix the conflict reported by Stephen Rothwell [1]. [1] http://lore.kernel.org/r/20191210093957.5120f717@canb.auug.org.au Signed-off-by: Jani Nikula <jani.nikula@intel.com> 2019-12-03T01:35:04+00:00 Linus Torvalds torvalds@linux-foundation.org 2019-12-03T01:35:04+00:00 urn:sha1:76bb8b05960c3d1668e6bee7624ed886cbd135ba Pull Kbuild updates from Masahiro Yamada: - remove unneeded asm headers from hexagon, ia64 - add 'dir-pkg' target, which works like 'tar-pkg' but skips archiving - add 'helpnewconfig' target, which shows help for new CONFIG options - support 'make nsdeps' for external modules - make rebuilds faster by deleting $(wildcard $^) checks - remove compile tests for kernel-space headers - refactor modpost to simplify modversion handling - make single target builds faster - optimize and clean up scripts/kallsyms.c - refactor various Makefiles and scripts * tag 'kbuild-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (59 commits) MAINTAINERS: update Kbuild/Kconfig maintainer's email address scripts/kallsyms: remove redundant initializers scripts/kallsyms: put check_symbol_range() calls close together scripts/kallsyms: make check_symbol_range() void function scripts/kallsyms: move ignored symbol types to is_ignored_symbol() scripts/kallsyms: move more patterns to the ignored_prefixes array scripts/kallsyms: skip ignored symbols very early scripts/kallsyms: add const qualifiers where possible scripts/kallsyms: make find_token() return (unsigned char *) scripts/kallsyms: replace prefix_underscores_count() with strspn() scripts/kallsyms: add sym_name() to mitigate cast ugliness scripts/kallsyms: remove unneeded length check for prefix matching scripts/kallsyms: remove redundant is_arm_mapping_symbol() scripts/kallsyms: set relative_base more effectively scripts/kallsyms: shrink table before sorting it scripts/kallsyms: fix definitely-lost memory leak scripts/kallsyms: remove unneeded #ifndef ARRAY_SIZE kbuild: make single target builds even faster modpost: respect the previous export when 'exported twice' is warned modpost: do not set ->preloaded for symbols from Module.symvers ... 2019-11-28T01:45:48+00:00 Linus Torvalds torvalds@linux-foundation.org 2019-11-28T01:45:48+00:00 urn:sha1:a6ed68d6468bd5a3da78a103344ded1435fed57a Pull drm updates from Dave Airlie: "Lots of stuff in here, though it hasn't been too insane this merge apart from dealing with the security fun. uapi: - export different colorspace properties on DP vs HDMI - new fourcc for ARM 16x16 block format - syncobj: allow querying last submitted timeline value - DRM_FORMAT_BIG_ENDIAN defined as unsigned core: - allow using gem vma manager in ttm - connector/encoder/bridge doc fixes - allow more than 3 encoders for a connector - displayport mst suspend/resume reprobing support - vram lazy unmapping, uniform vram mm and gem vram - edid cleanups + AVI informframe bar info - displayport helpers - dpcd parser added dp_cec: - Allow a connector to be associated with a cec device ttm: - pipelining with no_gpu_wait fix - always keep BOs on the LRU sched: - allow free_job routine to sleep i915: - Block userptr from mappable GTT - i915 perf uapi versioning - OA stream dynamic reconfiguration - make context persistence optional - introduce DRM_I915_UNSTABLE Kconfig - add fake lmem testing under unstable - BT.2020 support for DP MSA - struct mutex elimination - Tigerlake display/PLL/power management improvements - Jasper Lake PCH support - refactor PMU for multiple GPUs - Icelake firmware update - Split out vga + switcheroo code amdgpu: - implement dma-buf import/export without helpers - vega20 RAS enablement - DC i2c over aux fixes - renoir GPU reset - DC HDCP support - BACO support for CI/VI asics - MSI-X support - Arcturus EEPROM support - Arcturus VCN encode support - VCN dynamic powergating on RV/RV2 amdkfd: - add navi12/14/renoir support to kfd radeon: - SI dpm fix ported from amdgpu - fix bad DMA on ppc platforms gma500: - memory leak fixes qxl: - convert to new gem mmap exynos: - build warning fix komeda: - add aclk sysfs attribute v3d: - userspace cleanup uapi change i810: - fix for underflow in dispatch ioctls ast: - refactor show_cursor mgag200: - refactor show_cursor arcgpu: - encoder finding improvements mediatek: - mipi_tx, dsi and partial crtc support for MT8183 SoC - rotation support meson: - add suspend/resume support omap: - misc refactors tegra: - DisplayPort support for Tegra 210, 186 and 194. - IOMMU-backed DMA API fixes panfrost: - fix lockdep issue - simplify devfreq integration rcar-du: - R8A774B1 SoC support - fixes for H2 ES2.0 sun4i: - vcc-dsi regulator support virtio-gpu: - vmexit vs spinlock fix - move to gem shmem helpers - handle large command buffers with cma" * tag 'drm-next-2019-11-27' of git://anongit.freedesktop.org/drm/drm: (1855 commits) drm/amdgpu: invalidate mmhub semaphore workaround in gmc9/gmc10 drm/amdgpu: initialize vm_inv_eng0_sem for gfxhub and mmhub drm/amd/amdgpu/sriov skip RLCG s/r list for arcturus VF. drm/amd/amdgpu/sriov temporarily skip ras,dtm,hdcp for arcturus VF drm/amdgpu/gfx10: re-init clear state buffer after gpu reset merge fix for "ftrace: Rework event_create_dir()" drm/amdgpu: Update Arcturus golden registers drm/amdgpu/gfx10: fix out-of-bound mqd_backup array access drm/amdgpu/gfx10: explicitly wait for cp idle after halt/unhalt Revert "drm/amd/display: enable S/G for RAVEN chip" drm/amdgpu: disable gfxoff on original raven drm/amdgpu: remove experimental flag for Navi14 drm/amdgpu: disable gfxoff when using register read interface drm/amdgpu/powerplay: properly set PP_GFXOFF_MASK (v2) drm/amdgpu: fix bad DMA from INTERRUPT_CNTL2 drm/radeon: fix bad DMA from INTERRUPT_CNTL2 drm/amd/display: Fix debugfs on MST connectors drm/amdgpu/nv: add asic func for fetching vbios from rom directly drm/amdgpu: put flush_delayed_work at first drm/amdgpu/vcn2.5: fix the enc loop with hw fini ... 2019-11-25T08:15:32+00:00 Will Deacon will@kernel.org 2019-11-21T11:59:00+00:00 urn:sha1:fb041bb7c0a918b95c6889fc965cdc4a75b4c0ca The generic implementation of refcount_t should be good enough for everybody, so remove ARCH_HAS_REFCOUNT and REFCOUNT_FULL entirely, leaving the generic implementation enabled unconditionally. Signed-off-by: Will Deacon <will@kernel.org> Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Kees Cook <keescook@chromium.org> Tested-by: Hanjun Guo <guohanjun@huawei.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Elena Reshetova <elena.reshetova@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20191121115902.2551-9-will@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>