AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/gpu/drm/i915/gem
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Chris Wilson 552e01f663 drm/i915/gem: Retry faulthandlers on ENOSPC 
As we no longer use the shmemfs allocation directly, we do not expect to
receive -ENOSPC from a backing store allocation. The potential sources
for -ENOSPC are then our own internal eviction code, so the choice is
either to kill the potential application with SIGBUS or to retry the
faulthandler.

In this patch we retry the fault handler, but since this is a should
never happen condition, it is arguable that we gather up copious debug
and kill the application. At worst, we cause an interruptible busy-wait,
stalling the application -- all causes should be transient and the
system should eventually recover. A small stall is hopefully a better
outcome than random oomkiller.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200515200031.12034-1-chris@chris-wilson.co.uk
2020-05-16 10:37:20 +01:00
..
selftests drm/i915/selftests: Always flush before unpining after writing 2020-05-11 16:50:04 +01:00
i915_gem_busy.c drm/i915: Align engine->uabi_class/instance with i915_drm.h 2020-01-20 09:13:01 +00:00
i915_gem_clflush.c drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT 2020-05-09 12:57:57 +01:00
i915_gem_clflush.h drm/i915: Move more GEM objects under gem/ 2019-05-28 12:45:29 +01:00
i915_gem_client_blt.c drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT 2020-05-09 12:57:57 +01:00
i915_gem_client_blt.h drm/i915: add in-kernel blitter client 2019-05-30 12:01:44 +01:00
i915_gem_context_types.h drm/i915/gem: use spinlock_t instead of struct spinlock 2020-02-19 15:08:49 +02:00
i915_gem_context.c drm/i915: Only close vma we open 2020-04-24 11:24:45 +01:00
i915_gem_context.h drm/i915/perf: introduce global sseu pinning 2020-03-17 15:27:55 +02:00
i915_gem_dmabuf.c drm/i915: Skip CPU synchronisation on dmabuf attachments 2020-02-11 00:16:15 +00:00
i915_gem_domain.c drm/i915/gem: Remove object_is_locked assertion from unpin_from_display_plane 2020-04-20 16:23:24 +01:00
i915_gem_execbuffer.c drm/i915: Drop no-semaphore boosting 2020-05-14 06:14:33 +01:00
i915_gem_fence.c drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT 2020-05-09 12:57:57 +01:00
i915_gem_internal.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_gem_ioctls.h drm/i915: Introduce DRM_I915_GEM_MMAP_OFFSET 2019-12-04 15:11:44 +00:00
i915_gem_lmem.c drm/i915/gem: Support discontiguous lmem object maps 2020-01-03 11:26:01 +00:00
i915_gem_lmem.h drm/i915/gem: Support discontiguous lmem object maps 2020-01-03 11:26:01 +00:00
i915_gem_mman.c drm/i915/gem: Retry faulthandlers on ENOSPC 2020-05-16 10:37:20 +01:00
i915_gem_mman.h drm/i915: Introduce DRM_I915_GEM_MMAP_OFFSET 2019-12-04 15:11:44 +00:00
i915_gem_object_blt.c drm/i915/selftests: Always flush before unpining after writing 2020-05-11 16:50:04 +01:00
i915_gem_object_blt.h drm/i915/gt: Move the batch buffer pool from the engine to the gt 2020-04-30 19:12:02 +01:00
i915_gem_object_types.h drm/i915/gem: Drop cached obj->bind_count 2020-04-02 01:17:39 +01:00
i915_gem_object.c drm/i915/gem: Lazily acquire the device wakeref for freeing objects 2020-05-04 11:12:37 +01:00
i915_gem_object.h drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_gem_pages.c drm/i915/selftests: Always flush before unpining after writing 2020-05-11 16:50:04 +01:00
i915_gem_phys.c drm/i915/phys: unconditionally call release_memory_region 2020-03-06 10:05:17 +00:00
i915_gem_pm.c drm/i915/gem: Make WARN* drm specific where drm_priv ptr is available 2020-01-22 17:52:39 +02:00
i915_gem_pm.h drm/i915: Teach record_defaults to operate on the intel_gt 2019-10-22 20:43:07 +01:00
i915_gem_region.c drm/i915/gem: Single page objects are naturally contiguous 2020-01-02 21:21:17 +00:00
i915_gem_region.h drm/i915/region: support contiguous allocations 2019-10-08 20:50:01 +01:00
i915_gem_shmem.c drm/i915/gem: Make WARN* drm specific where drm_priv ptr is available 2020-01-22 17:52:39 +02:00
i915_gem_shrinker.c drm/i915/gem: Drop cached obj->bind_count 2020-04-02 01:17:39 +01:00
i915_gem_shrinker.h drm/i915: extract i915_gem_shrinker.h from i915_drv.h 2019-08-09 12:03:32 +03:00
i915_gem_stolen.c drm/i915/stolen: prefer struct drm_device based logging 2020-04-08 13:49:35 +03:00
i915_gem_stolen.h drm/i915/display: Be explicit in handling the preallocated vma 2020-02-05 09:20:39 +00:00
i915_gem_throttle.c drm/i915: Keep drm_i915_file_private around under RCU 2019-08-23 22:13:17 +01:00
i915_gem_tiling.c drm/i915/gem: Hold obj->vma.lock over for_each_ggtt_vma() 2020-04-22 15:43:56 +01:00
i915_gem_userptr.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
i915_gem_wait.c dma-buf: rename reservation_object to dma_resv 2019-08-13 09:09:30 +02:00
i915_gemfs.c drm/i915: Stop reconfiguring our shmemfs mountpoint 2019-08-09 20:18:30 +01:00
i915_gemfs.h drm/i915: Move more GEM objects under gem/ 2019-05-28 12:45:29 +01:00