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4178b5a60c
linux_dsm_epyc7002/drivers/gpu/drm/i915/gt
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Chris Wilson 4178b5a60c drm/i915/gt: Prevent timeslicing into unpreemptable requests 
We have a I915_REQUEST_NOPREEMPT flag that we set when we must prevent
the HW from preempting during the course of this request. We need to
honour this flag and protect the HW even if we have a heartbeat request,
or other maximum priority barrier, pending. As such, restrict the
timeslicing check to avoid preempting into the topmost priority band,
leaving the unpreemptable requests in blissful peace running
uninterrupted on the HW.

v2: Set the I915_PRIORITY_BARRIER to be less than
I915_PRIORITY_UNPREEMPTABLE so that we never submit a request
(heartbeat or barrier) that can legitimately preempt the current
non-premptable request.

Fixes: 2a98f4e65b ("drm/i915: add infrastructure to hold off preemption on a request")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200527162418.24755-1-chris@chris-wilson.co.uk
(cherry picked from commit b72f02d78e)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2020-06-16 11:34:23 +03:00
..
selftests
uc drm/i915: Remove wait priority boosting 2020-05-07 20:08:58 +01:00
debugfs_engines.c drm/i915/gt: allow setting generic data pointer 2020-03-26 21:20:51 +00:00
debugfs_engines.h drm/i915/gt: Move pm debug files into a gt aware debugfs 2019-12-22 15:25:10 +00:00
debugfs_gt_pm.c drm/i915/gt: Move rps.enabled/active to flags 2020-04-30 00:57:35 +01:00
debugfs_gt_pm.h drm/i915/gt: Move pm debug files into a gt aware debugfs 2019-12-22 15:25:10 +00:00
debugfs_gt.c drm/i915/uc: Move uC debugfs to its own folder under GT 2020-03-26 21:23:03 +00:00
debugfs_gt.h drm/i915/gt: allow setting generic data pointer 2020-03-26 21:20:51 +00:00
gen6_ppgtt.c drm pull for 5.6-rc1 2020-01-30 08:04:01 -08:00
gen6_ppgtt.h drm/i915/gtt: split up i915_gem_gtt 2020-01-07 19:27:36 +00:00
gen6_renderstate.c
gen7_renderclear.c drm/i915/gen7: Clear all EU/L3 residual contexts 2020-03-06 08:59:06 +00:00
gen7_renderclear.h drm/i915/gen7: Clear all EU/L3 residual contexts 2020-03-06 08:59:06 +00:00
gen7_renderstate.c
gen8_ppgtt.c drm/i915: Remove duplicate inline specifier on write_pte 2020-05-13 20:01:28 +01:00
gen8_ppgtt.h drm/i915/gtt: split up i915_gem_gtt 2020-01-07 19:27:36 +00:00
gen8_renderstate.c
gen9_renderstate.c
hsw_clear_kernel.c drm/i915/gen7: Clear all EU/L3 residual contexts 2020-03-06 08:59:06 +00:00
intel_breadcrumbs.c drm/i915/gt: Transfer old virtual breadcrumbs to irq_worker 2020-05-14 10:09:31 +01:00
intel_context_param.c drm/i915: Allow userspace to specify ringsize on construction 2020-02-25 19:23:19 +00:00
intel_context_param.h drm/i915: Allow userspace to specify ringsize on construction 2020-02-25 19:23:19 +00:00
intel_context_sseu.c drm/i915: Make define for lrc state offset 2020-04-24 00:52:14 +01:00
intel_context_types.h drm/i915/execlists: Avoid reusing the same logical CCID 2020-04-28 22:17:36 +01:00
intel_context.c drm/i915/gt: Remove errant assertion in __intel_context_do_pin 2020-05-25 15:40:31 +03:00
intel_context.h drm/i915: Use explicit flag to mark unreachable intel_context 2020-03-26 10:21:04 -07:00
intel_engine_cs.c drm/i915: Show per-engine default property values in sysfs 2020-05-14 08:25:05 +01:00
intel_engine_heartbeat.c drm/i915/gt: Always reschedule the new heartbeat 2020-03-17 18:26:15 +00:00
intel_engine_heartbeat.h
intel_engine_pm.c drm/i915/gt: Stop holding onto the pinned_default_state 2020-05-05 21:12:33 +01:00
intel_engine_pm.h drm/i915: Extend intel_wakeref to support delayed puts 2020-03-23 12:51:05 +00:00
intel_engine_types.h drm/i915/gt: Transfer old virtual breadcrumbs to irq_worker 2020-05-14 10:09:31 +01:00
intel_engine_user.c drm/i915/gt: Make WARN* drm specific where drm_priv ptr is available 2020-01-22 17:53:37 +02:00
intel_engine_user.h
intel_engine.h drm/i915/gt: Transfer old virtual breadcrumbs to irq_worker 2020-05-14 10:09:31 +01:00
intel_ggtt_fencing.c drm/i915/gt: Make fence revocation unequivocal 2020-04-01 23:34:17 +01:00
intel_ggtt_fencing.h drm/i915/gt: Store the fence details on the fence 2020-04-01 23:34:16 +01:00
intel_ggtt.c drm/i915: Refactor setting dma info to a common helper 2020-04-18 07:49:11 +01:00
intel_gpu_commands.h drm/i915/gen12: Fix HDC pipeline flush 2020-05-07 07:44:41 +01:00
intel_gt_buffer_pool_types.h drm/i915/gt: Move the batch buffer pool from the engine to the gt 2020-04-30 19:12:02 +01:00
intel_gt_buffer_pool.c drm/i915/gt: Move the batch buffer pool from the engine to the gt 2020-04-30 19:12:02 +01:00
intel_gt_buffer_pool.h drm/i915/gt: Move the batch buffer pool from the engine to the gt 2020-04-30 19:12:02 +01:00
intel_gt_clock_utils.c drm/i915/gt: Fix up clock frequency 2020-04-27 17:34:33 +01:00
intel_gt_clock_utils.h drm/i915/gt: Use the RPM config register to determine clk frequencies 2020-04-24 19:10:17 +01:00
intel_gt_irq.c drm/i915/gt: Yield the timeslice if caught waiting on a user semaphore 2020-04-07 14:43:58 +01:00
intel_gt_irq.h drm/i915/gt: Reorganise gen8+ interrupt handler 2020-01-28 12:30:00 +00:00
intel_gt_pm_irq.c
intel_gt_pm_irq.h
intel_gt_pm.c drm/i915/gt: Suspend tasklets before resume sanitization 2020-05-13 17:13:16 +01:00
intel_gt_pm.h drm/i915/gt: Apply sanitiization just before resume 2019-12-26 12:37:30 +00:00
intel_gt_requests.c drm/i915/gt: Check carefully for an idle engine in wait-for-idle 2020-04-23 16:16:32 +01:00
intel_gt_requests.h
intel_gt_types.h drm/i915/gt: Move the batch buffer pool from the engine to the gt 2020-04-30 19:12:02 +01:00
intel_gt.c drm/i915/gt: Move the batch buffer pool from the engine to the gt 2020-04-30 19:12:02 +01:00
intel_gt.h drm/i915/gt: Drop rogue space in the middle of GT_TRACE 2020-01-16 15:41:34 +00:00
intel_gtt.c drm/i915/gt: Pull marking vm as closed underneath the vm->mutex 2020-02-28 12:33:07 +00:00
intel_gtt.h drm/i915/gt: Allocate i915_fence_reg array 2020-03-16 20:28:29 +00:00
intel_llc_types.h
intel_llc.c drm/i915/gt: Do not attempt to reprogram IA/ring frequencies for dgfx 2020-02-19 22:27:10 +00:00
intel_llc.h
intel_lrc_reg.h drm/i915/selftests: Add context batchbuffers registers to live_lrc_fixed 2020-04-24 00:36:13 +01:00
intel_lrc.c drm/i915/gt: Prevent timeslicing into unpreemptable requests 2020-06-16 11:34:23 +03:00
intel_lrc.h drm/i915: Make define for lrc state offset 2020-04-24 00:52:14 +01:00
intel_mocs.c drm/i915/gt: Refactor l3cc/mocs availability 2020-02-19 14:09:18 +00:00
intel_mocs.h
intel_ppgtt.c drm/i915/gtt: split up i915_gem_gtt 2020-01-07 19:27:36 +00:00
intel_rc6_types.h drm/i915/gt: Only ignore rc6 parking for PCU on byt/bsw 2019-12-12 08:35:48 +00:00
intel_rc6.c drm/i915: Remove cnl pre-prod workarounds 2020-05-04 18:44:52 +03:00
intel_rc6.h drm/i915/gt: Simplify rc6 w/a application 2019-12-02 21:57:22 +00:00
intel_renderstate.c drm/i915: Emit await(batch) before MI_BB_START 2020-05-11 16:50:04 +01:00
intel_renderstate.h drm/i915: Lift i915_vma_pin() out of intel_renderstate_emit() 2019-12-03 13:23:00 +00:00
intel_reset_types.h
intel_reset.c drm/i915/gt: prefer struct drm_device based logging 2020-04-08 13:49:35 +03:00
intel_reset.h
intel_ring_submission.c drm/i915/gt: Keep a no-frills swappable copy of the default context state 2020-04-29 19:02:37 +01:00
intel_ring_types.h drm/i915/gt: Avoid resetting ring->head outside of its timeline mutex 2020-02-11 12:03:22 +00:00
intel_ring.c drm/i915/execlists: Always force a context reload when rewinding RING_TAIL 2020-02-07 21:41:46 +00:00
intel_ring.h drm/i915/gt: Mark up racy read of intel_ring.head 2020-04-08 13:40:07 +01:00
intel_rps_types.h drm/i915/gt: Switch to manual evaluation of RPS 2020-04-30 00:57:37 +01:00
intel_rps.c drm/i915/gt: Sanitize RPS interrupts upon resume 2020-05-03 08:24:36 +01:00
intel_rps.h drm/i915/gt: Sanitize RPS interrupts upon resume 2020-05-03 08:24:36 +01:00
intel_sseu.c drm/i915/perf: introduce global sseu pinning 2020-03-17 15:27:55 +02:00
intel_sseu.h
intel_timeline_types.h drm/i915/gt: Pull GT initialisation under intel_gt_init() 2019-12-22 12:51:32 +00:00
intel_timeline.c drm/i915: Make intel_timeline_init static 2020-05-11 12:52:08 +01:00
intel_timeline.h drm/i915: Make intel_timeline_init static 2020-05-11 12:52:08 +01:00
intel_workarounds_types.h drm/i915/gt: Skip rmw for masked registers 2020-02-01 09:21:57 +00:00
intel_workarounds.c drm/i915/ehl: Restrict w/a 1607087056 for EHL/JSL 2020-05-12 14:05:41 -07:00
intel_workarounds.h
ivb_clear_kernel.c drm/i915/gen7: Clear all EU/L3 residual contexts 2020-03-06 08:59:06 +00:00
mock_engine.c drm/i915/gt: Move the batch buffer pool from the engine to the gt 2020-04-30 19:12:02 +01:00
mock_engine.h
selftest_context.c drm/i915: Drop no-semaphore boosting 2020-05-14 06:14:33 +01:00
selftest_engine_cs.c drm/i915/selftests: fix uninitialized variable sum when summing up values 2019-12-10 14:35:24 +00:00
selftest_engine_heartbeat.c drm/i915/selftests: Disable heartbeat around manual pulse tests 2020-02-28 09:25:41 +00:00
selftest_engine_pm.c
selftest_engine.c
selftest_engine.h
selftest_gt_pm.c drm/i915/gt: Fix up clock frequency 2020-04-27 17:34:33 +01:00
selftest_hangcheck.c drm/i915/selftests: Restore to default heartbeat 2020-06-16 11:34:23 +03:00
selftest_llc.c drm/i915/gt: Do not attempt to reprogram IA/ring frequencies for dgfx 2020-02-19 22:27:10 +00:00
selftest_llc.h
selftest_lrc.c drm/i915/gt: Prevent timeslicing into unpreemptable requests 2020-06-16 11:34:23 +03:00
selftest_mocs.c drm/i915/gt: Refactor l3cc/mocs availability 2020-02-19 14:09:18 +00:00
selftest_rc6.c drm/i915/selftests: Move gpu energy measurement into its own little lib 2020-04-17 18:48:51 +01:00
selftest_rc6.h
selftest_reset.c drm/i915/guc: Kill USES_GUC_SUBMISSION macro 2020-02-20 17:48:03 +00:00
selftest_ring_submission.c drm/i915/selftests: Always flush before unpining after writing 2020-05-11 16:50:04 +01:00
selftest_rps.c drm/i915/selftests: Restore to default heartbeat 2020-06-16 11:34:23 +03:00
selftest_rps.h drm/i915/gt: Fix up clock frequency 2020-04-27 17:34:33 +01:00
selftest_timeline.c drm/i915/selftests: Restore to default heartbeat 2020-06-16 11:34:23 +03:00
selftest_workarounds.c drm/i915: work around false-positive maybe-uninitialized warning 2020-06-15 12:36:07 +03:00
shmem_utils.c drm/i915/gt: Keep a no-frills swappable copy of the default context state 2020-04-29 19:02:37 +01:00
shmem_utils.h drm/i915/gt: Keep a no-frills swappable copy of the default context state 2020-04-29 19:02:37 +01:00
st_shmem_utils.c drm/i915/gt: Keep a no-frills swappable copy of the default context state 2020-04-29 19:02:37 +01:00
sysfs_engines.c drm/i915: Show per-engine default property values in sysfs 2020-05-14 08:25:05 +01:00
sysfs_engines.h drm/i915/gt: Expose engine properties via sysfs 2020-02-28 22:03:19 +00:00