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linux/drivers/gpu/drm/i915
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Chris Wilson c949ae4314 drm/i915/execlists: Protect peeking at execlists->active 
Now that we dropped the engine->active.lock serialisation from around
process_csb(), direct submission can run concurrently to the interrupt
handler. As such execlists->active may be advanced as we dequeue,
dropping the reference to the request. We need to employ our RCU request
protection to ensure that the request is not freed too early.

Fixes: df403069029d ("drm/i915/execlists: Lift process_csb() out of the irq-off spinlock")
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: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009100955.21477-1-chris@chris-wilson.co.uk
2019-10-09 19:46:40 +01:00
..
display
drm/i915: Select DPLL's via mask
2019-10-09 08:33:28 -07:00
gem
drm/i915/selftests: fix null pointer dereference on pointer data
2019-10-09 11:16:14 +01:00
gt
drm/i915/execlists: Protect peeking at execlists->active
2019-10-09 19:46:40 +01:00
gvt
drm/i915: Move context management under GEM
2019-10-04 15:39:34 +01:00
oa
drm/i915/perf: Refactor oa object to better manage resources
2019-08-07 20:34:39 +01:00
selftests
drm/i915/region: support volatile objects
2019-10-08 20:50:01 +01:00
i915_active_types.h
drm/i915: Coordinate i915_active with its own mutex
2019-10-04 15:39:12 +01:00
i915_active.c
drm/i915: Move idle barrier cleanup into engine-pm
2019-10-04 15:39:16 +01:00
i915_active.h
drm/i915: Coordinate i915_active with its own mutex
2019-10-04 15:39:12 +01:00
i915_buddy.c
drm/i915/buddy: add missing call to i915_global_register
2019-09-09 10:58:20 +01:00
i915_buddy.h
drm/i915: buddy allocator
2019-08-10 19:47:40 +01:00
i915_cmd_parser.c
drm/i915: extract i915_memcpy.h from i915_drv.h
2019-08-09 12:03:25 +03:00
i915_debugfs.c
drm/i915/tgl: Add DC3CO counter in i915_dmc_info
2019-10-08 11:05:30 +03:00
i915_debugfs.h
…
i915_drv.c
drm/i915: move gmbus setup down to intel_modeset_init()
2019-10-06 11:25:06 +03:00
i915_drv.h
drm/i915: introduce intel_memory_region
2019-10-08 20:49:55 +01:00
i915_fixed.h
drm/i915: make i915_fixed.h self-contained
2019-06-27 10:50:24 +03:00
i915_gem_evict.c
drm/i915: Move request runtime management onto gt
2019-10-04 15:39:26 +01:00
i915_gem_fence_reg.c
drm/i915: Pull i915_vma_pin under the vm->mutex
2019-10-04 15:39:02 +01:00
i915_gem_fence_reg.h
drm/i915: Track ggtt fence reservations under its own mutex
2019-08-22 08:53:40 +01:00
i915_gem_gtt.c
drm/i915: Move context management under GEM
2019-10-04 15:39:34 +01:00
i915_gem_gtt.h
drm/i915: Pull i915_vma_pin under the vm->mutex
2019-10-04 15:39:02 +01:00
i915_gem.c
drm/i915: Drop struct_mutex from around GEM initialisation
2019-10-04 15:39:43 +01:00
i915_gem.h
drm/i915: avoid including intel_drv.h via i915_drv.h->i915_trace.h
2019-08-07 12:43:14 +03:00
i915_getparam.c
drm/i915: Pass intel_gt to has-reset?
2019-09-27 23:25:14 +01:00
i915_globals.c
drm/i915: buddy allocator
2019-08-10 19:47:40 +01:00
i915_globals.h
drm/i915: buddy allocator
2019-08-10 19:47:40 +01:00
i915_gpu_error.c
drm/i915: Remove logical HW ID
2019-10-04 15:39:30 +01:00
i915_gpu_error.h
drm/i915: Remove logical HW ID
2019-10-04 15:39:30 +01:00
i915_ioc32.c
…
i915_irq.c
drm/i915/gt: Prefer local path to runtime powermanagement
2019-10-07 21:44:02 +01:00
i915_irq.h
drm/i915: Implement a better i945gm vblank irq vs. C-states workaround
2019-10-04 18:43:49 +03:00
i915_memcpy.c
drm/i915: extract i915_memcpy.h from i915_drv.h
2019-08-09 12:03:25 +03:00
i915_memcpy.h
drm/i915: extract i915_memcpy.h from i915_drv.h
2019-08-09 12:03:25 +03:00
i915_mm.c
drm/i915: Drop expectations of VM_IO from our GGTT mmappings
2019-08-07 12:06:07 +01:00
i915_params.c
drm/i915/tgl: Add DC3CO mask to allowed_dc_mask and gen9_dc_mask
2019-10-08 11:05:26 +03:00
i915_params.h
Revert "drm/i915/guc: Turn on GuC/HuC auto mode"
2019-07-19 15:35:58 +01:00
i915_pci.c
drm/i915/display: abstract all vgaarb access to intel_vga.[ch]
2019-10-02 13:31:54 +03:00
i915_perf_types.h
drm/i915/perf: drop list of streams
2019-10-08 16:22:19 +01:00
i915_perf.c
drm/i915/perf: drop list of streams
2019-10-08 16:22:19 +01:00
i915_perf.h
drm/i915/perf: move perf types to their own header
2019-10-07 16:55:50 +03:00
i915_pmu.c
drm/i915: Extract GT render sleep (rc6) management
2019-09-27 13:01:57 +01:00
i915_pmu.h
drm/i915/pmu: Use GT parked for estimating RC6 while asleep
2019-09-12 17:02:50 +01:00
i915_priolist_types.h
drm/i915: Push the wakeref->count deferral to the backend
2019-08-13 21:09:49 +01:00
i915_pvinfo.h
drm/i915: make i915_pvinfo.h self-contained
2019-06-27 10:50:35 +03:00
i915_query.c
drm/i915: Add EU stride runtime parameter
2019-08-23 19:14:22 +01:00
i915_query.h
…
i915_reg.h
drm/i915/tgl: Add DC3CO counter in i915_dmc_info
2019-10-08 11:05:30 +03:00
i915_request.c
drm/i915: Move request runtime management onto gt
2019-10-04 15:39:26 +01:00
i915_request.h
drm/i915: Move request runtime management onto gt
2019-10-04 15:39:26 +01:00
i915_scatterlist.c
…
i915_scatterlist.h
drm/i915: s/for_each_sgt_dma/for_each_sgt_daddr/
2019-08-29 21:59:16 +01:00
i915_scheduler_types.h
drm/i915/execlists: Minimalistic timeslicing
2019-06-20 16:52:36 +01:00
i915_scheduler.c
drm/i915: Push the wakeref->count deferral to the backend
2019-08-13 21:09:49 +01:00
i915_scheduler.h
…
i915_selftest.h
drm/i915: make i915_selftest.h self-contained
2019-07-30 13:41:35 -07:00
i915_suspend.c
drm/i915: Drop struct_mutex from suspend state save/restore
2019-10-04 15:39:41 +01:00
i915_suspend.h
drm/i915: extract i915_suspend.h from i915_drv.h
2019-08-09 12:03:05 +03:00
i915_sw_fence_work.c
drm/i915: Generalise the clflush dma-worker
2019-08-22 08:27:44 +01:00
i915_sw_fence_work.h
drm/i915: Generalise the clflush dma-worker
2019-08-22 08:27:44 +01:00
i915_sw_fence.c
Merge drm/drm-next into drm-intel-next-queued
2019-08-22 00:10:36 -07:00
i915_sw_fence.h
Merge drm/drm-next into drm-intel-next-queued
2019-08-22 00:10:36 -07:00
i915_switcheroo.c
drm/i915: split out i915_switcheroo.[ch] from i915_drv.c
2019-10-06 11:25:00 +03:00
i915_switcheroo.h
drm/i915: split out i915_switcheroo.[ch] from i915_drv.c
2019-10-06 11:25:00 +03:00
i915_syncmap.c
…
i915_syncmap.h
…
i915_sysfs.c
drm/i915: Move context management under GEM
2019-10-04 15:39:34 +01:00
i915_sysfs.h
drm/i915: extract i915_sysfs.h from i915_drv.h
2019-08-09 11:52:09 +03:00
i915_trace_points.c
…
i915_trace.h
drm/i915: Move context management under GEM
2019-10-04 15:39:34 +01:00
i915_user_extensions.c
…
i915_user_extensions.h
…
i915_utils.c
drm/i915: move printing and load error inject to i915_utils.[ch]
2019-08-09 11:51:58 +03:00
i915_utils.h
drm/i915/execlists: Lift process_csb() out of the irq-off spinlock
2019-08-16 20:59:02 +01:00
i915_vgpu.c
drm/i915: to make vgpu ppgtt notificaiton as atomic operation
2019-08-24 12:12:34 +01:00
i915_vgpu.h
drm/i915: make i915_vgpu.h self-contained
2019-06-27 10:50:38 +03:00
i915_vma.c
drm/i915: Coordinate i915_active with its own mutex
2019-10-04 15:39:12 +01:00
i915_vma.h
drm/i915: Pull i915_vma_pin under the vm->mutex
2019-10-04 15:39:02 +01:00
intel_csr.c
drm/i915/dmc: Update ICL DMC version to v1.09
2019-09-27 10:20:39 -07:00
intel_csr.h
…
intel_device_info.c
drm/i915/tgl: s/ss/eu fuse reading support
2019-09-21 08:31:08 +01:00
intel_device_info.h
drm/i915/dsb: feature flag added for display state buffer.
2019-09-23 09:37:54 +03:00
intel_gvt.c
drm/i915: Add i915 to i915_inject_probe_failure
2019-08-02 21:14:29 +01:00
intel_gvt.h
drm/i915: Propagate "_remove" function name suffix down
2019-07-12 13:05:08 +01:00
intel_memory_region.c
drm/i915/region: support volatile objects
2019-10-08 20:50:01 +01:00
intel_memory_region.h
drm/i915/region: support volatile objects
2019-10-08 20:50:01 +01:00
intel_pch.c
drm/i915/cml: Add second PCH ID for CMP
2019-09-18 11:00:40 +01:00
intel_pch.h
drm/i915/cml: Add second PCH ID for CMP
2019-09-18 11:00:40 +01:00
intel_pm.c
drm/i915: Extract GT render sleep (rc6) management
2019-09-27 13:01:57 +01:00
intel_pm.h
drm/i915: Extract GT render sleep (rc6) management
2019-09-27 13:01:57 +01:00
intel_runtime_pm.c
drm/i915/display: abstract all vgaarb access to intel_vga.[ch]
2019-10-02 13:31:54 +03:00
intel_runtime_pm.h
Merge drm/drm-next into drm-intel-next-queued
2019-07-29 08:51:48 -07:00
intel_sideband.c
drm/i915: remove unnecessary includes of intel_display_types.h header
2019-08-07 12:43:55 +03:00
intel_sideband.h
…
intel_uncore.c
drm/i915/tgl: Introduce gen12 forcewake ranges
2019-09-13 20:07:36 +01:00
intel_uncore.h
drm/i915: Only apply a rmw mmio update if the value changes
2019-09-17 15:25:40 +01:00
intel_wakeref.c
drm/i915: Push the wakeref->count deferral to the backend
2019-08-13 21:09:49 +01:00
intel_wakeref.h
drm/i915: Push the wakeref->count deferral to the backend
2019-08-13 21:09:49 +01:00
intel_wopcm.c
drm/i915/wopcm: Fix SPDX tag location
2019-08-16 16:50:03 +01:00
intel_wopcm.h
drm/i915/wopcm: Don't fail on WOPCM partitioning failure
2019-08-02 21:14:32 +01:00
Kconfig
drm/i915: Fix Kconfig indentation
2019-10-08 09:18:19 +03:00
Kconfig.debug
drm/i915: Fix Kconfig indentation
2019-10-08 09:18:19 +03:00
Kconfig.profile
…
Makefile
drm/i915: introduce intel_memory_region
2019-10-08 20:49:55 +01:00