leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
c949ae4314
linux/drivers/gpu/drm/i915/gt
History
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: df40306902 ("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
..
selftests drm/i915: Coordinate i915_active with its own mutex 2019-10-04 15:39:12 +01:00
uc drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
gen6_renderstate.c
gen7_renderstate.c
gen8_renderstate.c
gen9_renderstate.c
intel_breadcrumbs.c drm/i915: Don't disable interrupts for intel_engine_breadcrumbs_irq() 2019-09-26 18:44:35 +01:00
intel_context_types.h drm/i915: Remove logical HW ID 2019-10-04 15:39:30 +01:00
intel_context.c drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
intel_context.h drm/i915/gt: Mark context->active_count as protected by timeline->mutex 2019-08-16 18:02:06 +01:00
intel_engine_cs.c drm/i915/gt: Give engine->kernel_context distinct timeline lock classes 2019-10-08 22:19:00 +01:00
intel_engine_pm.c drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
intel_engine_pm.h drm/i915: Defer final intel_wakeref_put to process context 2019-08-08 21:28:51 +01:00
intel_engine_pool_types.h drm/i915: Replace struct_mutex for batch pool serialisation 2019-08-04 14:31:18 +01:00
intel_engine_pool.c drm/i915: Coordinate i915_active with its own mutex 2019-10-04 15:39:12 +01:00
intel_engine_pool.h drm/i915: Mark i915_request.timeline as a volatile, rcu pointer 2019-09-20 10:24:09 +01:00
intel_engine_types.h drm/i915: Remove logical HW ID 2019-10-04 15:39:30 +01:00
intel_engine_user.c drm/i915: Fix up the inverse mapping for default ctx->engines[] 2019-08-08 15:45:35 +01:00
intel_engine_user.h drm/i915: Rename engines to match their user interface 2019-08-07 14:30:55 +01:00
intel_engine.h drm/i915/gt: Flush submission tasklet before waiting/retiring 2019-10-08 16:23:55 +01:00
intel_gpu_commands.h drm/i915: Add definitions for MI_MATH command 2019-09-26 22:11:04 +01:00
intel_gt_irq.c drm/i915: Extract general GT interrupt handlers 2019-08-12 15:36:13 +01:00
intel_gt_irq.h drm/i915: Extract general GT interrupt handlers 2019-08-12 15:36:13 +01:00
intel_gt_pm_irq.c drm/i915: Extract general GT interrupt handlers 2019-08-12 15:36:13 +01:00
intel_gt_pm_irq.h drm/i915: Extract GT powermanagement interrupt handling 2019-08-12 15:36:06 +01:00
intel_gt_pm.c drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
intel_gt_pm.h drm/i915/selftests: Distinguish mock device from no wakeref 2019-09-27 23:25:30 +01:00
intel_gt_requests.c drm/i915/gt: Flush submission tasklet before waiting/retiring 2019-10-08 16:23:55 +01:00
intel_gt_requests.h drm/i915: Move request runtime management onto gt 2019-10-04 15:39:26 +01:00
intel_gt_types.h drm/i915: Move request runtime management onto gt 2019-10-04 15:39:26 +01:00
intel_gt.c drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
intel_gt.h drm/i915: Move GT init to intel_gt.c 2019-09-11 08:11:51 +01:00
intel_hangcheck.c drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
intel_lrc_reg.h drm/i915/selftests: Verify the LRC register layout between init and HW 2019-09-24 17:27:19 +01:00
intel_lrc.c drm/i915/execlists: Protect peeking at execlists->active 2019-10-09 19:46:40 +01:00
intel_lrc.h drm/i915: Remove logical HW ID 2019-10-04 15:39:30 +01:00
intel_mocs.c drm/i915/gt: Remove stale kerneldoc for internal MOCS functions 2019-08-05 18:27:17 +01:00
intel_mocs.h drm/i915: Move MOCS setup to intel_mocs.c 2019-07-31 07:40:35 -07:00
intel_rc6_types.h drm/i915: Extract GT render sleep (rc6) management 2019-09-27 13:01:57 +01:00
intel_rc6.c drm/i915/stolen: make the object creation interface consistent 2019-10-04 19:27:41 +01:00
intel_rc6.h drm/i915: Extract GT render sleep (rc6) management 2019-09-27 13:01:57 +01:00
intel_renderstate.c drm/i915: Serialize against vma moves 2019-08-19 15:25:56 +01:00
intel_renderstate.h
intel_reset_types.h drm/i915: Define explicit wedged on init reset state 2019-09-26 18:44:35 +01:00
intel_reset.c drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
intel_reset.h drm/i915: Pass intel_gt to has-reset? 2019-09-27 23:25:14 +01:00
intel_ringbuffer.c drm/i915/stolen: make the object creation interface consistent 2019-10-04 19:27:41 +01:00
intel_sseu.c drm/i915: Expand subslice mask 2019-08-23 19:14:27 +01:00
intel_sseu.h drm/i915/tgl: s/ss/eu fuse reading support 2019-09-21 08:31:08 +01:00
intel_timeline_types.h drm/i915: Coordinate i915_active with its own mutex 2019-10-04 15:39:12 +01:00
intel_timeline.c drm/i915: Coordinate i915_active with its own mutex 2019-10-04 15:39:12 +01:00
intel_timeline.h drm/i915/gt: Track timeline activeness in enter/exit 2019-08-15 23:16:05 +01:00
intel_workarounds_types.h
intel_workarounds.c Revert "drm/i915/tgl: Implement Wa_1406941453" 2019-09-20 11:59:33 +01:00
intel_workarounds.h
Makefile drm/i915: use upstream version of header tests 2019-07-30 12:11:57 +03:00
mock_engine.c drm/i915/selftests: Assign the intel_runtime_pm pointer for mock_uncore 2019-10-08 16:21:50 +01:00
mock_engine.h
selftest_context.c drm/i915: Move context management under GEM 2019-10-04 15:39:34 +01:00
selftest_engine_cs.c drm/i915: Rename engines to match their user interface 2019-08-07 14:30:55 +01:00
selftest_engine_pm.c drm/i915: Defer final intel_wakeref_put to process context 2019-08-08 21:28:51 +01:00
selftest_engine.c drm/i915: Defer final intel_wakeref_put to process context 2019-08-08 21:28:51 +01:00
selftest_engine.h drm/i915: Defer final intel_wakeref_put to process context 2019-08-08 21:28:51 +01:00
selftest_gt_pm.c drm/i915: Extract GT render sleep (rc6) management 2019-09-27 13:01:57 +01:00
selftest_hangcheck.c drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
selftest_lrc.c drm/i915/selftests: Appease lockdep 2019-10-07 21:44:02 +01:00
selftest_reset.c drm/i915/gt: Prefer local path to runtime powermanagement 2019-10-07 21:44:02 +01:00
selftest_timeline.c drm/i915: Move request runtime management onto gt 2019-10-04 15:39:26 +01:00
selftest_workarounds.c drm/i915/selftests: Hold request reference over waits 2019-10-09 08:58:39 +01:00