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linux/drivers/gpu/drm/i915
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Chris Wilson 15de9cb5c9 drm/i915/gt: Avoid resetting ring->head outside of its timeline mutex 
We manipulate ring->head while active in i915_request_retire underneath
the timeline manipulation. We cannot rely on a stable ring->head outside
of the timeline->mutex, in particular while setting up the context for
resume and reset.

Closes: https://gitlab.freedesktop.org/drm/intel/issues/1126
Fixes: 0881954965 ("drm/i915: Introduce intel_context.pin_mutex for pin management")
Fixes: e5dadff4b0 ("drm/i915: Protect request retirement with timeline->mutex")
References: f3c0efc9fe ("drm/i915/execlists: Leave resetting ring to intel_ring")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200211120131.958949-1-chris@chris-wilson.co.uk
(cherry picked from commit 42827350f7)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-02-18 09:53:18 +02:00
..
display
drm/i915: Wean off drm_pci_alloc/drm_pci_free
2020-02-18 09:52:54 +02:00
gem
drm/i915: Wean off drm_pci_alloc/drm_pci_free
2020-02-18 09:52:54 +02:00
gt
drm/i915/gt: Avoid resetting ring->head outside of its timeline mutex
2020-02-18 09:53:18 +02:00
gvt
Merge tag 'gvt-fixes-2020-02-12' of https://github.com/intel/gvt-linux into drm-intel-next-fixes
2020-02-12 16:50:04 +02:00
oa
drm/i915: reimplement header test feature
2020-01-02 12:24:10 +02:00
selftests
drm/i915: Add missing include file <linux/math64.h>
2020-01-13 13:43:50 +02:00
.gitignore
drm/i915: reimplement header test feature
2020-01-02 12:24:10 +02:00
i915_active_types.h
drm/i915: Serialise i915_active_fence_set() with itself
2019-11-27 17:02:14 +00:00
i915_active.c
drm/i915: Fix preallocated barrier list append
2020-02-12 13:24:45 +02:00
i915_active.h
drm/i915/gt: Acquire ce->active before ce->pin_count/ce->pin_mutex
2020-02-12 13:24:45 +02:00
i915_buddy.c
drn/i915: Break up long i915_buddy_free_list() with a cond_resched()
2019-12-30 12:10:38 +00:00
i915_buddy.h
…
i915_cmd_parser.c
Correct function name in comment
2019-12-16 23:13:12 +00:00
i915_debugfs.c
drm/i915: Pass intel_encoder to enc_to_*()
2020-01-13 20:10:51 +02:00
i915_debugfs.h
…
i915_drv.c
Merge drm/drm-next into drm-intel-next-queued
2020-01-09 17:19:12 +02:00
i915_drv.h
drm/i915: Update DRIVER_DATE to 20200114
2020-01-14 13:39:38 +02:00
i915_fixed.h
…
i915_gem_evict.c
drm/i915: Ignore most failures during evict-vm
2019-12-05 13:50:39 +00:00
i915_gem_fence_reg.c
drm/i915: Early return for no-op i915_vma_pin_fence()
2020-01-09 08:53:15 +00:00
i915_gem_fence_reg.h
…
i915_gem_gtt.c
Merge tag 'ioremap-5.6' of git://git.infradead.org/users/hch/ioremap
2020-01-27 13:03:00 -08:00
i915_gem_gtt.h
drm/i915/gtt: split up i915_gem_gtt
2020-01-07 19:27:36 +00:00
i915_gem.c
drm/i915: Wean off drm_pci_alloc/drm_pci_free
2020-02-18 09:52:54 +02:00
i915_gem.h
Merge tag 'drm-intel-next-2019-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
2019-12-27 15:25:04 +10:00
i915_getparam.c
drm/i915: Introduce DRM_I915_GEM_MMAP_OFFSET
2019-12-04 15:11:44 +00:00
i915_globals.c
drm/i915: Ratelimit i915_globals_park
2019-12-18 17:38:56 +00:00
i915_globals.h
…
i915_gpu_error.c
drm/i915: Update drm/i915 bug filing URL
2020-02-17 21:16:45 +02:00
i915_gpu_error.h
drm/i915: Stub out i915_gpu_coredump_put
2020-02-12 13:24:34 +02:00
i915_ioc32.c
…
i915_irq.c
drm/i915: prefer 3-letter acronym for ivybridge
2019-12-28 13:38:08 -08:00
i915_irq.h
…
i915_memcpy.c
drm/i915: Align start for memcpy_from_wc
2019-12-11 22:40:41 +00:00
i915_memcpy.h
drm/i915: Align start for memcpy_from_wc
2019-12-11 22:40:41 +00:00
i915_mm.c
drm/i915/gem: Extend mmap support for lmem
2020-01-04 17:57:46 +00:00
i915_params.c
drm/i915/lmem: add the fake lmem region
2019-10-31 20:41:47 +00:00
i915_params.h
drm/i915/lmem: add the fake lmem region
2019-10-31 20:41:47 +00:00
i915_pci.c
drm/i915: simplify prefixes on device_info
2019-12-28 13:37:56 -08:00
i915_perf_types.h
drm/i915/perf: Register sysctl path globally
2019-12-13 20:16:23 +00:00
i915_perf.c
drm/i915: Pin the context as we work on it
2020-01-09 12:50:26 +00:00
i915_perf.h
drm/i915/perf: Register sysctl path globally
2019-12-13 20:16:23 +00:00
i915_pmu.c
drm/i915/pmu: Correct the rc6 offset upon enabling
2020-02-10 14:45:19 +02:00
i915_pmu.h
drm/i915/pmu: Ensure monotonic rc6
2019-12-23 14:17:22 +02:00
i915_priolist_types.h
…
i915_pvinfo.h
…
i915_query.c
drm/i915/query: Align flavour of engine data lookup
2019-11-25 15:08:24 +02:00
i915_query.h
…
i915_reg.h
drm/i915/display/icl+: Do not program clockgating
2020-01-08 08:32:48 -08:00
i915_request.c
drm/i915: Initialise basic fence before acquiring seqno
2020-02-17 19:17:10 +02:00
i915_request.h
drm/i915/gt: Allow temporary suspension of inflight requests
2020-02-12 16:55:58 +02:00
i915_scatterlist.c
…
i915_scatterlist.h
…
i915_scheduler_types.h
…
i915_scheduler.c
drm/i915/gt: Protect defer_request() from new waiters
2020-02-17 21:24:19 +02:00
i915_scheduler.h
drm/i915: Use a ctor for TYPESAFE_BY_RCU i915_request
2019-11-22 10:47:38 +00:00
i915_selftest.h
drm/i915/selftests: Perform some basic cycle counting of MI ops
2019-11-11 18:30:13 +00:00
i915_suspend.c
…
i915_suspend.h
…
i915_sw_fence_work.c
drm/i915: Unpin vma->obj on early error
2019-12-18 10:13:03 +00:00
i915_sw_fence_work.h
…
i915_sw_fence.c
drm/i915: Propagate errors on awaiting already signaled dma-fences
2019-12-06 19:09:46 +00:00
i915_sw_fence.h
drm/i915: Check for error before calling cmpxchg()
2019-12-06 19:09:33 +00:00
i915_switcheroo.c
…
i915_switcheroo.h
…
i915_syncmap.c
…
i915_syncmap.h
…
i915_sysfs.c
drm/i915: Start chopping up the GPU error capture
2020-01-10 15:34:33 +00:00
i915_sysfs.h
…
i915_trace_points.c
…
i915_trace.h
drm/i915: Rename pipe update tracepoints
2019-12-19 22:29:58 +02:00
i915_user_extensions.c
…
i915_user_extensions.h
…
i915_utils.c
drm/i915: Update drm/i915 bug filing URL
2020-02-17 21:16:45 +02:00
i915_utils.h
drm/i915: Improve i915_inject_probe_error macro
2019-12-12 12:35:17 +00:00
i915_vgpu.c
…
i915_vgpu.h
…
i915_vma_types.h
drm/i915/gtt: split up i915_gem_gtt
2020-01-07 19:27:36 +00:00
i915_vma.c
drm/i915: Check activity on i915_vma after confirming pin_count==0
2020-02-11 11:49:51 +02:00
i915_vma.h
drm/i915/gtt: split up i915_gem_gtt
2020-01-07 19:27:36 +00:00
intel_csr.c
…
intel_csr.h
…
intel_device_info.c
drm/i915/tgl: Assume future platforms will inherit TGL's SFC capability
2019-12-31 09:37:35 -08:00
intel_device_info.h
drm/i915: Flesh out device_info pretty printer
2019-12-09 09:58:51 +00:00
intel_gvt.c
…
intel_gvt.h
…
intel_memory_region.c
drm/i915: lookup for mem_region of a mem_type
2020-01-05 01:08:09 +00:00
intel_memory_region.h
drm/i915: lookup for mem_region of a mem_type
2020-01-05 01:08:09 +00:00
intel_pch.c
drm/i915/pch: convert to using the drm_dbg_kms() macro.
2020-01-10 16:10:35 +02:00
intel_pch.h
drm/i915: Fix detection for a CMP-V PCH
2019-11-18 16:36:03 +02:00
intel_pm.c
drm/i915/pm: use new struct drm_device logging macros.
2020-01-10 16:10:56 +02:00
intel_pm.h
drm/i915: Pass dev_priv to ilk_disable_lp_wm()
2019-12-04 15:37:30 +02:00
intel_region_lmem.c
drm/i915/lmem: use new struct drm_device based logging macros.
2020-01-10 16:11:04 +02:00
intel_region_lmem.h
drm/i915/lmem: add the fake lmem region
2019-10-31 20:41:47 +00:00
intel_runtime_pm.c
…
intel_runtime_pm.h
…
intel_sideband.c
drm/i915/sideband: convert to using new struct drm_device logging macros
2020-01-10 16:11:48 +02:00
intel_sideband.h
…
intel_uncore.c
drm/i915/uncore: use new struct drm_device based macros.
2020-01-10 16:12:25 +02:00
intel_uncore.h
…
intel_wakeref.c
drm/i915/gt: Flush ongoing retires during wait_for_idle
2020-01-03 00:33:07 +00:00
intel_wakeref.h
drm/i915/gt: Flush ongoing retires during wait_for_idle
2020-01-03 00:33:07 +00:00
intel_wopcm.c
…
intel_wopcm.h
…
Kconfig
drm/i915: Update drm/i915 bug filing URL
2020-02-17 21:16:45 +02:00
Kconfig.debug
Merge drm/drm-next into drm-intel-next-queued
2019-12-11 11:13:50 +02:00
Kconfig.profile
drm/i915: Default to a more lenient forced preemption timeout
2019-11-27 10:12:14 +02:00
Kconfig.unstable
drm/i915/lmem: add the fake lmem region
2019-10-31 20:41:47 +00:00
Makefile
drm/i915/gtt: split up i915_gem_gtt
2020-01-07 19:27:36 +00:00