Lionel Landwerlin 0305613dbc drm/i915/perf: workaround register corruption in OATAILPTR ... After having written the entire OA buffer with reports, the HW will write again at the beginning of the OA buffer. It'll indicate it by setting the WRAP bits in the OASTATUS register. When a wrap happens and that at the end of the read vfunc we write the OASTATUS register back to clear the REPORT_LOST bit, we sometimes see that the OATAILPTR register is reset to a previous position on Gen8/9 (apparently not the case on Gen11+). This leads the next call to the read vfunc to process reports we've already read. Because we've marked those as read by clearing the reason & timestamp dwords, they're discarded and a "Skipping spurious, invalid OA report" message is emitted. The workaround to avoid this OATAILPTR value reset seems to be to set the wrap bits when writing back OASTATUS. This change has no impact on userspace, it only avoids a bunch of DRM_NOTE("Skipping spurious, invalid OA report\n") messages. Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Fixes: 19f81df285 ("drm/i915/perf: Add OA unit support for Gen 8+") Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201117130124.829979-1-lionel.g.landwerlin@intel.com (cherry picked from commit 059a0beb48) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>		2020-11-24 09:17:41 -08:00
..
display	drm/i915: Handle max_bpc==16	2020-11-19 01:52:25 -05:00
gem	drm/i915/gem: Pull phys pread/pwrite implementations to the backend	2020-11-12 19:47:30 -05:00
gt	drm/i915/gt: Fixup tgl mocs for PTE tracking	2020-11-19 15:10:49 -05:00
gvt	drm/i915/gvt: return error when failing to take the module reference	2020-11-13 12:16:52 +08:00
selftests	drm/i915/selftests: Fix wrong return value of perf_request_latency()	2020-11-16 18:06:28 -05:00
.gitignore
i915_active.c	drm next for 5.10-rc1	2020-10-15 10:46:16 -07:00
i915_active.h	drm/i915: Provide a fastpath for waiting on vma bindings	2020-09-07 13:29:19 +03:00
i915_active_types.h
i915_buddy.c
i915_buddy.h
i915_cmd_parser.c	drm/i915: Avoid mixing integer types during batch copies	2020-09-30 14:24:54 -04:00
i915_config.c	drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT	2020-05-09 12:57:57 +01:00
i915_debugfs.c	drm/i915/gem: Serialise debugfs i915_gem_objects with ctx->mutex	2020-09-30 14:24:37 -04:00
i915_debugfs.h
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_drv.c	drm/i915: Reduce INTEL_DISPLAY_ENABLED to just removing the outputs	2020-09-15 14:57:13 +03:00
i915_drv.h	drm/i915: Force VT'd workarounds when running as a guest OS	2020-10-21 08:32:30 -04:00
i915_fixed.h
i915_gem.c	drm/i915/gem: Pull phys pread/pwrite implementations to the backend	2020-11-12 19:47:30 -05:00
i915_gem.h	drm/i915: Use per object locking in execbuf, v12.	2020-09-07 14:30:07 +03:00
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_getparam.c	drm/i915: add syncobj timeline support	2020-08-17 16:16:51 -04:00
i915_globals.c
i915_globals.h
i915_gpu_error.c	drm/i915: Use the active reference on the vma while capturing	2020-10-19 13:29:57 -04:00
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: Introduce intel_hpd_hotplug_irqs()	2020-09-15 18:01:35 +03:00
i915_irq.h
i915_memcpy.c	drm/i915: remove always-defined CONFIG_AS_MOVNTDQA	2020-04-09 00:01:59 +09:00
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: Initial implementation of PSR2 selective fetch	2020-08-17 16:17:15 -04:00
i915_params.h	drm/i915: Initial implementation of PSR2 selective fetch	2020-08-17 16:17:15 -04:00
i915_pci.c	drm/i915: Restore ILK-M RPS support	2020-10-29 14:20:20 -04:00
i915_perf.c	drm/i915/perf: workaround register corruption in OATAILPTR	2020-11-24 09:17:41 -08:00
i915_perf.h
i915_perf_types.h	drm/i915/perf: Schedule oa_config after modifying the contexts	2020-03-30 18:20:34 +01:00
i915_pmu.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
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/perf: workaround register corruption in OATAILPTR	2020-11-24 09:17:41 -08:00
i915_request.c	drm/i915: Cancel outstanding work after disabling heartbeats on an engine	2020-09-30 14:24:46 -04:00
i915_request.h	drm/i915/gt: Distinguish the virtual breadcrumbs from the irq breadcrumbs	2020-09-07 14:23:55 +03:00
i915_scatterlist.c
i915_scatterlist.h
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_scheduler_types.h	drm/i915: Drop no-semaphore boosting	2020-05-14 06:14:33 +01:00
i915_selftest.h	drm/i915/gem: Implement legacy MI_STORE_DATA_IMM	2020-05-04 15:15:04 +01:00
i915_suspend.c	drm/i915: Nuke CACHE_MODE_0 save/restore	2020-09-14 16:20:57 +03:00
i915_suspend.h
i915_sw_fence.c	treewide: Make all debug_obj_descriptors const	2020-09-24 21:56:25 +02:00
i915_sw_fence.h
i915_sw_fence_work.c
i915_sw_fence_work.h
i915_switcheroo.c	drm/i915/switcheroo: use struct drm_device based logging	2020-04-08 13:49:35 +03:00
i915_switcheroo.h
i915_syncmap.c
i915_syncmap.h
i915_sysfs.c
i915_sysfs.h
i915_trace.h	drm/i915: Drop i915_request.i915 backpointer	2020-06-03 13:53:39 +01:00
i915_trace_points.c
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: Remove unused inline function drain_delayed_work()	2020-07-15 10:16:44 +01:00
i915_vgpu.c
i915_vgpu.h
i915_vma.c	drm/i915: Hold onto an explicit ref to i915_vma_work.pinned	2020-11-03 19:22:42 -05:00
i915_vma.h	drm/i915: Make sure execbuffer always passes ww state to i915_vma_pin.	2020-09-07 14:31:13 +03:00
i915_vma_types.h	drm/i915: Export ppgtt_bind_vma	2020-07-03 15:14:35 +01:00
intel_device_info.c	drm/i915: disable all display features when no display	2020-09-11 13:16:48 +03:00
intel_device_info.h	drm/i915/rkl: Handle HTI	2020-08-17 16:16:07 -04:00
intel_dram.c	drm/i915/dram: prefer struct drm_device based logging	2020-04-08 13:49:35 +03:00
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	drm/i915/region: fix max size calculation	2020-10-29 14:20:17 -04:00
intel_memory_region.h
intel_pch.c	drm/i915/dg1: Add fake PCH	2020-07-14 02:47:21 -07:00
intel_pch.h	drm/i915/dg1: Add fake PCH	2020-07-14 02:47:21 -07:00
intel_pm.c	drm/i915/tgl: Fix Media power gate sequence.	2020-11-16 18:06:21 -05:00
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: Nuke dpio_phy_iosf_port[]	2020-09-11 16:59:49 +03:00
intel_sideband.h
intel_uncore.c	drm/i915: Drop runtime-pm assert from vgpu io accessors	2020-10-21 08:32:32 -04:00
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	drm/i915: use vmap in i915_gem_object_map	2020-10-18 09:27:10 -07:00
Kconfig.debug	drm/i915: Exclude low pages (128KiB) of stolen from use	2020-10-21 08:32:28 -04:00
Kconfig.profile	drm/i915: Replace the hardcoded I915_FENCE_TIMEOUT	2020-05-09 12:57:57 +01:00
Kconfig.unstable
Makefile	drm/i915: Factor out HDCP shim functions from dp for use by dp_mst	2020-09-01 13:02:33 +05:30
vlv_suspend.c
vlv_suspend.h