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linux/drivers/gpu/drm/i915/gt
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Chris Wilson 4d6c185908 drm/i915/gt: Fill all the unused space in the GGTT 
When we allocate space in the GGTT we may have to allocate a larger
region than will be populated by the object to accommodate fencing. Make
sure that this space beyond the end of the buffer points safely into
scratch space, in case the HW tries to access it anyway (e.g. fenced
access to the last tile row).

v2: Preemptively / conservatively guard gen6 ggtt as well.

Reported-by: Imre Deak <imre.deak@intel.com>
References: https://gitlab.freedesktop.org/drm/intel/-/issues/1554
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200331152348.26946-1-chris@chris-wilson.co.uk
2020-03-31 21:51:08 +01:00
..
selftests
drm/i915: Serialise i915_active_fence_set() with itself
2019-11-27 17:02:14 +00:00
uc
drm/i915/huc: Fix HuC register used in debugfs
2020-03-30 17:56:00 +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: allow setting generic data pointer
2020-03-26 21:20:51 +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/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: 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: Use explicit flag to mark unreachable intel_context
2020-03-19 21:28:20 +00:00
intel_context.c
drm/i915/gt: Only delay the context barrier pm
2020-03-23 20:38:56 +00:00
intel_context.h
drm/i915: Use explicit flag to mark unreachable intel_context
2020-03-19 21:28:20 +00:00
intel_engine_cs.c
drm/i915/gt: Include the execlists CCID of each port in the engine dump
2020-03-31 21:42:12 +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: Include a tell-tale for engine parking
2020-01-22 17:10:15 +00:00
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
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/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/gt: Defend against concurrent updates to execlists->active
2020-03-09 20:38:57 +00:00
intel_ggtt_fencing.c
drm/i915/gt: Restore check for invalid vma for fencing
2020-03-17 00:22:34 +00:00
intel_ggtt_fencing.h
drm/i915/gt: Allocate i915_fence_reg array
2020-03-16 20:28:29 +00:00
intel_ggtt.c
drm/i915/gt: Fill all the unused space in the GGTT
2020-03-31 21:51:08 +01:00
intel_gpu_commands.h
drm/i915/gen7: Clear all EU/L3 residual contexts
2020-03-06 08:59:06 +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/gt: Pull restoration of GGTT fences underneath the GT
2020-03-16 20:28:28 +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: Extend intel_wakeref to support delayed puts
2020-03-23 12:51:05 +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/uc: do not free err log on uc_fini
2020-03-26 21:23:22 +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: Allocate i915_fence_reg array
2020-03-16 20:28:29 +00:00
intel_llc_types.h
drm/i915: Extract GT ring management
2019-10-20 20:45:18 +01:00
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
drm/i915: Extract GT ring management
2019-10-20 20:45:18 +01:00
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: Pause CS flow before reset
2020-03-31 21:42:12 +01:00
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
drm/i915: Do initial mocs configuration directly
2019-10-16 19:35:37 +01:00
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: Select the deepest available parking mode for rc6
2020-03-24 15:53:51 +00:00
intel_rc6.h
drm/i915/gt: Simplify rc6 w/a application
2019-12-02 21:57:22 +00:00
intel_renderstate.c
drm/i915/renderstate: use struct drm_device based logging macros.
2020-03-19 11:34:22 +02:00
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
drm/i915: Define explicit wedged on init reset state
2019-09-26 18:44:35 +01:00
intel_reset.c
drm/i915/gt: Cancel a hung context if already closed
2020-03-19 21:28:24 +00:00
intel_reset.h
drm/i915: Don't mix srcu tag and negative error codes
2019-10-07 10:44:48 -07:00
intel_ring_submission.c
drm/i915/ring_submission: use drm_device based logging macros.
2020-03-19 11:34:28 +02:00
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
drm/i915: Extract GT render power state management
2019-10-26 19:28:59 +01:00
intel_rps.c
drm/i915/gt: Leave rps->cur_freq on unpark
2020-03-22 23:03:08 +00:00
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
drm/i915/tgl: s/ss/eu fuse reading support
2019-09-21 08:31:08 +01:00
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: Mark timeline->cacheline as destroyed after rcu grace period
2020-03-23 11:16:03 +00:00
intel_timeline.h
drm/i915/gt: Pull timeline initialise to intel_gt_init_early
2019-11-01 14:47:36 +00:00
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/workarounds: convert to drm_device based logging macros.
2020-03-19 11:34:36 +02:00
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: 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
drm/i915: Extract GT ring management
2019-10-20 20:45:18 +01:00
selftest_lrc.c
drm/i915: Report all failed registers for ctx isolation
2020-03-31 21:42:12 +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: Measure the energy consumed while in RC6
2020-03-25 11:33:05 +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/gt: Wait for the wa batch to be pinned
2020-03-07 17:10:35 +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