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ee2413eeed
linux_dsm_epyc7002/drivers/gpu/drm/i915/gt
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Mika Kuoppala ee2413eeed drm/i915: Add mechanism to submit a context WA on ring submission 
This patch adds framework to submit an arbitrary batchbuffer on each
context switch to clear residual state for render engine on Gen7/7.5
devices.

The idea of always emitting the context and vm setup around each request
is primary to make reset recovery easy, and not require rewriting the
ringbuffer. As each request would set up its own context, leaving it to
the HW to notice and elide no-op context switches, we could restart the
ring at any point, and reorder the requests freely.

However, to avoid emitting clear_residuals() between consecutive requests
in the ringbuffer of the same context, we do want to track the current
context in the ring. In doing so, we need to be careful to only record a
context switch when we are sure the next request will be emitted.

This security mitigation change does not trigger any performance
regression. Performance is on par with current mainline/drm-tip.

v2: Update vm_alias params to point to correct address space "vm" due to
changes made in the patch "f21613797bae98773"

v3-v4: none

Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Prathap Kumar Valsan <prathap.kumar.valsan@intel.com>
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Balestrieri Francesco <francesco.balestrieri@intel.com>
Cc: Bloomfield Jon <jon.bloomfield@intel.com>
Cc: Dutt Sudeep <sudeep.dutt@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200306000957.2836150-1-chris@chris-wilson.co.uk
2020-03-06 08:59:06 +00:00
..
selftests drm/i915: Serialise i915_active_fence_set() with itself 2019-11-27 17:02:14 +00:00
uc drm/i915: Apply i915_request_skip() on submission 2020-03-04 14:29:50 +00:00
debugfs_engines.c drm/i915/gt: Move pm debug files into a gt aware debugfs 2019-12-22 15:25:10 +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 pm debug files into a gt aware debugfs 2019-12-22 15:25:10 +00:00
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/gt: Move pm debug files into a gt aware debugfs 2019-12-22 15:25:10 +00:00
debugfs_gt.h drm/i915/gt: Move pm debug files into a gt aware debugfs 2019-12-22 15:25:10 +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_renderstate.c
gen8_ppgtt.c drm/i915/vgpu: improve vgpu abstractions 2020-03-03 17:46:54 +02:00
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
intel_breadcrumbs.c drm/i915/gt: Prevent queuing retire workers on the virtual engine 2020-02-07 10:54:49 +00:00
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/gt: Pull sseu context updates under gt 2020-02-04 10:14:03 +00:00
intel_context_types.h drm/i915: Track hw reported context runtime 2020-02-16 15:16:22 +00:00
intel_context.c drm/i915/gt: Prevent allocation on a banned context 2020-03-03 17:30:20 +00:00
intel_context.h drm/i915: Track hw reported context runtime 2020-02-16 15:16:22 +00:00
intel_engine_cs.c drm/i915/gt: Expose busywait duration to sysfs 2020-02-28 22:03:41 +00:00
intel_engine_heartbeat.c drm/i915/gt: Fix up missing error propagation for heartbeat pulses 2020-02-18 20:32:21 +00:00
intel_engine_heartbeat.h
intel_engine_pm.c drm/i915/gt: Include a tell-tale for engine parking 2020-01-22 17:10:15 +00:00
intel_engine_pm.h drm/i915: Mark up the calling context for intel_wakeref_put() 2019-11-25 15:29:17 +02:00
intel_engine_pool_types.h
intel_engine_pool.c drm main pull for 5.5-rc1 2019-11-27 17:45:48 -08:00
intel_engine_pool.h
intel_engine_types.h drm/i915/gt: Expose busywait duration to sysfs 2020-02-28 22:03:41 +00:00
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/selftests: Drop live_preempt_hang 2020-02-10 16:46:21 +00:00
intel_ggtt.c drm/i915/ggtt: do not set bits 1-11 in gen12 ptes 2020-02-27 22:38:11 +00:00
intel_gpu_commands.h drm/i915/gem: Prepare gen7 cmdparser for async execution 2019-12-12 10:42:57 +00:00
intel_gt_irq.c drm/i915/gt: Hook up CS_MASTER_ERROR_INTERRUPT 2020-01-29 15:16:52 +00:00
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: extract engine WA programming to common resume function 2020-01-31 23:54:12 +00:00
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: Drop the timeline->mutex as we wait for retirement 2020-03-03 17:30:20 +00:00
intel_gt_requests.h drm/i915/gt: Schedule request retirement when timeline idles 2019-11-25 16:39:07 +02:00
intel_gt_types.h drm/i915: Remove i915->kernel_context 2019-12-21 16:37:10 +00:00
intel_gt.c drm/i915/gt: Push the GPU cancellation to the backend 2020-02-22 10:20:12 +00:00
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: Pull marking vm as closed underneath the vm->mutex 2020-02-28 12:33:07 +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: Track hw reported context runtime 2020-02-16 15:16:22 +00:00
intel_lrc.c drm/i915/execlists: Show the "switch priority hint" in dumps 2020-03-05 15:46:59 +00:00
intel_lrc.h drm/i915/gt: Merge engine init/setup loops 2019-12-22 15:18:05 +00:00
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/vgpu: improve vgpu abstractions 2020-03-03 17:46:54 +02:00
intel_rc6.h drm/i915/gt: Simplify rc6 w/a application 2019-12-02 21:57:22 +00:00
intel_renderstate.c drm/i915: Lift i915_vma_pin() out of intel_renderstate_emit() 2019-12-03 13:23:00 +00:00
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: Cancel banned contexts after GT reset 2020-03-04 20:28:02 +00:00
intel_reset.h
intel_ring_submission.c drm/i915: Add mechanism to submit a context WA on ring submission 2020-03-06 08:59:06 +00:00
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/execlists: Always force a context reload when rewinding RING_TAIL 2020-02-07 21:41:46 +00:00
intel_rps_types.h
intel_rps.c drm/i915: significantly reduce the use of <drm/i915_drm.h> 2020-02-27 08:35:09 +02:00
intel_rps.h drm/i915/rps: Add frequency translation helpers 2019-12-13 22:22:05 +00:00
intel_sseu.c
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/gt: Warn about the hidden i915_vma_pin in timeline_get_seqno 2020-02-03 11:27:17 +00:00
intel_timeline.h
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/tgl: WaDisableGPGPUMidThreadPreemption 2020-03-05 13:26:06 +00:00
intel_workarounds.h
mock_engine.c drm/i915: Apply i915_request_skip() on submission 2020-03-04 14:29:50 +00:00
mock_engine.h
selftest_context.c drm/i915: Remove i915->kernel_context 2019-12-21 16:37:10 +00:00
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 drm/i915: Mark up the calling context for intel_wakeref_put() 2019-11-25 15:29:17 +02:00
selftest_engine.c
selftest_engine.h
selftest_gt_pm.c drm/i915/gt: Manual rc6 entry upon parking 2019-11-27 12:53:27 +00:00
selftest_hangcheck.c drm/i915: Apply i915_request_skip() on submission 2020-03-04 14:29:50 +00:00
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/selftests: Fix uninitialized variable 2020-03-03 17:30:20 +00:00
selftest_mocs.c drm/i915/gt: Refactor l3cc/mocs availability 2020-02-19 14:09:18 +00:00
selftest_rc6.c drm/i915/selftests: Show the RC6 residency on parking failure 2020-01-24 10:09:56 +00:00
selftest_rc6.h drm/i915/gt: Manual rc6 entry upon parking 2019-11-27 12:53:27 +00:00
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: Add mechanism to submit a context WA on ring submission 2020-03-06 08:59:06 +00:00
selftest_timeline.c drm/i915/selftests: Remove erroneous intel_engine_pm_put 2020-02-09 13:47:26 +00:00
selftest_workarounds.c drm/i915/selftests: Also wait for the scratch buffer to be bound 2020-01-31 15:10:02 +00:00
sysfs_engines.c drm/i915/gt: Expose heartbeat interval via sysfs 2020-02-28 22:03:49 +00:00
sysfs_engines.h drm/i915/gt: Expose engine properties via sysfs 2020-02-28 22:03:19 +00:00