leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
5c4a53e3b1
linux/drivers/gpu/drm/i915/gt
History
Chris Wilson 5c4a53e3b1 drm/i915/execlists: Track inflight CCID 
The presumption is that by using a circular counter that is twice as
large as the maximum ELSP submission, we would never reuse the same CCID
for two inflight contexts.

However, if we continually preempt an active context such that it always
remains inflight, it can be resubmitted with an arbitrary number of
paired contexts. As each of its paired contexts will use a new CCID,
eventually it will wrap and submit two ELSP with the same CCID.

Rather than use a simple circular counter, switch over to a small bitmap
of inflight ids so we can avoid reusing one that is still potentially
active.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1796
Fixes: 2935ed5339 ("drm/i915: Remove logical HW ID")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: <stable@vger.kernel.org> # v5.5+
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200428184751.11257-2-chris@chris-wilson.co.uk
2020-04-28 22:17:36 +01:00
..
selftests drm/i915: Serialise i915_active_fence_set() with itself 2019-11-27 17:02:14 +00:00
uc drm/i915/execlists: Avoid reusing the same logical CCID 2020-04-28 22:17:36 +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: Use the RPM config register to determine clk frequencies 2020-04-24 19:10:17 +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/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
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: Mark up racy check of breadcrumb irq enabled 2020-04-08 13:40:07 +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 Merge drm/drm-next into drm-intel-next-queued 2020-04-16 14:35:16 +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/execlists: Avoid reusing the same logical CCID 2020-04-28 22:17:36 +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 drm/i915/gt: Replace hangcheck by heartbeats 2019-10-23 23:52:10 +01:00
intel_engine_pm.c drm/i915/gt: fix spelling mistake "undeflow" -> "underflow" 2020-04-01 14:38:18 +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_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/execlists: Track inflight CCID 2020-04-28 22:17:36 +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: Free request pool from virtual engines 2020-04-03 21:50:24 +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: Add per ctx batchbuffer wa for timestamp 2020-04-25 18:39:32 +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: Sanitize GT first 2020-04-27 11:39:23 +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 drm/i915/gt: Schedule request retirement when timeline idles 2019-11-25 16:39:07 +02:00
intel_gt_types.h drm/i915/gt: Use the RPM config register to determine clk frequencies 2020-04-24 19:10:17 +01:00
intel_gt.c drm/i915/gt: Use the RPM config register to determine clk frequencies 2020-04-24 19:10:17 +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/execlists: Track inflight CCID 2020-04-28 22:17:36 +01:00
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/gt: prefer struct drm_device based logging 2020-04-08 13:49:35 +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: Only close vma we open 2020-04-24 11:24:45 +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: Restrict gen7 w/a batch to Haswell 2020-03-20 07:04:38 -07:00
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: Extract GT render power state management 2019-10-26 19:28:59 +01:00
intel_rps.c drm/i915/gt: Use the RPM config register to determine clk frequencies 2020-04-24 19:10:17 +01:00
intel_rps.h drm/i915/rps: Add frequency translation helpers 2019-12-13 22:22:05 +00:00
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/gt: Check cacheline is valid before acquiring 2020-04-27 11:39:23 +01:00
intel_timeline.h drm/i915/gt: Poison residual state [HWSP] across resume. 2020-04-21 16:27:39 +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/tgl: Initialize multicast register steering for workarounds 2020-04-15 15:29:20 -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: 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: Fix up clock frequency 2020-04-27 17:34:33 +01:00
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: Use indirect ctx bb to mend CMD_BUF_CCTL 2020-04-25 19:08:56 +01:00
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 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/gt: Wait for the wa batch to be pinned 2020-03-07 17:10:35 +00:00
selftest_rps.c drm/i915/selftests: Tweak the tolerance for clock ticks to 12.5% 2020-04-28 14:25:21 +01:00
selftest_rps.h drm/i915/gt: Fix up clock frequency 2020-04-27 17:34:33 +01:00
selftest_timeline.c drm/i915/selftests: 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