Chris Wilson b2295e2ecc drm/i915/gt: Be defensive in the face of false CS events ... If the HW throws a curve ball and reports either en event before it is possible, or just a completely impossible event, we have to grin and bear it. The first few events, we will likely not notice as we would be expecting some event, but as soon as we stop expecting an event and yet they still keep coming, then we enter into undefined state territory. In which case, bail out, stop processing the events, and reset the engine and our set of queued requests to recover. The sporadic hangs and warnings will continue to plague CI, but at least system stability should not be compromised. v2: Commentary and force the reset-on-error. v3: Customised user facing message for forced resets from internal errors. Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/2045 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/20200710133125.30194-1-chris@chris-wilson.co.uk		2020-07-10 15:24:17 +01:00
..
display	drm/i915/bios: Parse HOBL parameter	2020-07-09 12:33:24 -07:00
gem	drm/i915: Remove i915_gem_object_get_dirty_page()	2020-07-08 22:05:51 +01:00
gt	drm/i915/gt: Be defensive in the face of false CS events	2020-07-10 15:24:17 +01:00
gvt	drm/i915: Move the engine mask to intel_gt_info	2020-07-08 21:07:11 +01:00
selftests	drm/i915/selftest: Check that GPR are restored across noa_wait	2020-07-10 10:20:38 +01:00
.gitignore
i915_active_types.h
i915_active.c
i915_active.h
i915_buddy.c
i915_buddy.h
i915_cmd_parser.c	drm/i915: Whitelist context-local timestamp in the gen9 cmdparser	2020-06-02 16:35:29 +03:00
i915_config.c	drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT	2020-05-09 12:57:57 +01:00
i915_debugfs_params.c	drm/i915/params: switch to device specific parameters	2020-06-22 23:26:40 +03:00
i915_debugfs_params.h
i915_debugfs.c	drm/i915: Move sseu debugfs under gt/	2020-07-08 21:40:15 +01:00
i915_debugfs.h
i915_drv.c	drm/i915: Introduce gt_init_mmio	2020-07-08 21:07:13 +01:00
i915_drv.h	drm/i915/bios: Parse HOBL parameter	2020-07-09 12:33:24 -07:00
i915_fixed.h
i915_gem_evict.c	drm/i915: Handle idling during i915_gem_evict_something busy loops	2020-05-13 14:39:41 -07:00
i915_gem_gtt.c	drm/i915: Update dma-attributes for our sg DMA	2020-07-07 11:00:47 +01:00
i915_gem_gtt.h	drm/i915: Remove PIN_UPDATE for i915_vma_pin	2020-05-21 17:33:51 +01:00
i915_gem.c	drm/i915: Leave vma intact as they are discarded	2020-06-12 10:13:07 +01:00
i915_gem.h	drm/i915: Print caller when tainting for CI	2020-07-06 19:21:07 +01:00
i915_getparam.c	drm/i915/sseu: Move sseu_info under gt_info	2020-07-08 21:13:09 +01:00
i915_globals.c
i915_globals.h
i915_gpu_error.c	drm/i915/sseu: Move sseu_info under gt_info	2020-07-08 21:13:09 +01:00
i915_gpu_error.h	drm/i915: Move the engine mask to intel_gt_info	2020-07-08 21:07:11 +01:00
i915_ioc32.c	i915 compat ioctl(): just use drm_ioctl_kernel()	2020-05-01 20:35:26 -04:00
i915_ioc32.h
i915_irq.c	drm/i915: Extend Wa_14010685332 to all ICP+ PCH's	2020-06-25 22:39:50 -07:00
i915_irq.h
i915_memcpy.c
i915_memcpy.h
i915_mm.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
i915_params.c	drm/i915: fix a couple of spelling mistakes in kernel parameter help text	2020-06-30 11:30:02 +03:00
i915_params.h	drm/i915: Add psr_safest_params	2020-06-04 19:36:48 -07:00
i915_pci.c	drm/i915: Move the engine mask to intel_gt_info	2020-07-08 21:07:11 +01:00
i915_perf_types.h
i915_perf.c	drm/i915/perf: Use GTT when saving/restoring engine GPR	2020-07-10 10:20:34 +01:00
i915_perf.h
i915_pmu.c	drm/i915/gt: Always report the sample time for busy-stats	2020-06-18 09:26:54 +01:00
i915_pmu.h
i915_priolist_types.h	drm/i915/gt: Prevent timeslicing into unpreemptable requests	2020-06-16 11:34:23 +03:00
i915_pvinfo.h
i915_query.c	drm/i915/sseu: Move sseu_info under gt_info	2020-07-08 21:13:09 +01:00
i915_query.h
i915_reg.h	drm/i915/display: Implement new combo phy initialization step	2020-07-07 13:16:31 -07:00
i915_request.c	drm/i915: Drop i915_request.i915 backpointer	2020-06-03 13:53:39 +01:00
i915_request.h	drm/i915: Mark up inline getters as taking a const i915_request	2020-06-16 21:13:58 +01:00
i915_scatterlist.c
i915_scatterlist.h
i915_scheduler_types.h	drm/i915: Drop no-semaphore boosting	2020-05-14 06:14:33 +01:00
i915_scheduler.c	drm/i915: Don't set queue-priority hint when supressing the reschedule	2020-05-25 15:40:26 +03:00
i915_scheduler.h	drm/i915: Mark concurrent submissions with a weak-dependency	2020-05-11 10:54:04 -07:00
i915_selftest.h	drm/i915/gem: Implement legacy MI_STORE_DATA_IMM	2020-05-04 15:15:04 +01:00
i915_suspend.c
i915_suspend.h
i915_sw_fence_work.c
i915_sw_fence_work.h
i915_sw_fence.c	drm/i915: Tidy awaiting on dma-fences	2020-05-11 12:56:45 +01:00
i915_sw_fence.h
i915_switcheroo.c
i915_switcheroo.h
i915_syncmap.c
i915_syncmap.h
i915_sysfs.c
i915_sysfs.h
i915_trace_points.c
i915_trace.h	drm/i915: Drop i915_request.i915 backpointer	2020-06-03 13:53:39 +01:00
i915_user_extensions.c
i915_user_extensions.h
i915_utils.c	drm/i915: Don't taint when using fault injection	2020-07-06 19:21:07 +01:00
i915_utils.h	drm/i915: Print caller when tainting for CI	2020-07-06 19:21:07 +01:00
i915_vgpu.c
i915_vgpu.h
i915_vma_types.h	drm/i915: Export ppgtt_bind_vma	2020-07-03 15:14:35 +01:00
i915_vma.c	drm/i915: Export ppgtt_bind_vma	2020-07-03 15:14:35 +01:00
i915_vma.h	drm/i915/gt: Remove local entries from GGTT on suspend	2020-05-28 16:55:15 +01:00
intel_device_info.c	drm/i915/sseu: Move sseu_info under gt_info	2020-07-08 21:13:09 +01:00
intel_device_info.h	drm/i915/sseu: Move sseu_info under gt_info	2020-07-08 21:13:09 +01:00
intel_dram.c
intel_dram.h
intel_gvt.c	drm/i915/params: switch to device specific parameters	2020-06-22 23:26:40 +03:00
intel_gvt.h
intel_memory_region.c
intel_memory_region.h
intel_pch.c	drm/i915: Identify Cometlake platform	2020-06-02 23:15:34 +01:00
intel_pch.h
intel_pm.c	drm/i915: Document FBC related w/as more thoroughly	2020-07-09 16:50:53 +03:00
intel_pm.h	drm/i915: Fix includes and local vars order	2020-05-22 14:40:35 +01:00
intel_region_lmem.c	drm/i915/params: switch to device specific parameters	2020-06-22 23:26:40 +03:00
intel_region_lmem.h
intel_runtime_pm.c	Merge drm/drm-next into drm-intel-next-queued	2020-06-25 18:05:03 +03:00
intel_runtime_pm.h
intel_sideband.c	drm/i915: Added required new PCode commands	2020-05-05 13:59:55 +03:00
intel_sideband.h
intel_uncore.c	drm/i915: Move the engine mask to intel_gt_info	2020-07-08 21:07:11 +01:00
intel_uncore.h	drm/i915: Use the gt in HAS_ENGINE	2020-07-08 21:07:09 +01:00
intel_wakeref.c
intel_wakeref.h
intel_wopcm.c	drm/i915: Remove cnl pre-prod workarounds	2020-05-04 18:44:52 +03:00
intel_wopcm.h
Kconfig
Kconfig.debug
Kconfig.profile	drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT	2020-05-09 12:57:57 +01:00
Kconfig.unstable
Makefile	drm/i915: Move sseu debugfs under gt/	2020-07-08 21:40:15 +01:00
vlv_suspend.c
vlv_suspend.h