AuxXxilium/linux_dsm_epyc7002
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749085a213
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Chris Wilson 749085a213 drm/i915/execlists: Protect peeking at execlists->active 
Now that we dropped the engine->active.lock serialisation from around
process_csb(), direct submission can run concurrently to the interrupt
handler. As such execlists->active may be advanced as we dequeue,
dropping the reference to the request. We need to employ our RCU request
protection to ensure that the request is not freed too early.

Fixes: df40306902 ("drm/i915/execlists: Lift process_csb() out of the irq-off spinlock")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191009100955.21477-1-chris@chris-wilson.co.uk
(cherry picked from commit c949ae4314)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2019-10-09 14:39:30 -07:00
..
display drm/i915: Bump skl+ max plane width to 5k for linear/x-tiled 2019-10-07 10:44:51 -07:00
gem drm/i915: Mark contents as dirty on a write fault 2019-10-07 10:44:52 -07:00
gt drm/i915/execlists: Protect peeking at execlists->active 2019-10-09 14:39:30 -07:00
gvt drm main pull for 5.4-rc1 2019-09-19 16:24:24 -07:00
oa drm/i915/perf: Refactor oa object to better manage resources 2019-08-07 20:34:39 +01:00
selftests drm/i915: Perform GGTT restore much earlier during resume 2019-10-07 10:44:46 -07:00
i915_active_types.h drm/i915: Markup expected timeline locks for i915_active 2019-08-16 18:02:07 +01:00
i915_active.c drm/i915: i915_active.retire() is optional 2019-08-19 16:41:19 +01:00
i915_active.h drm/i915: Markup expected timeline locks for i915_active 2019-08-16 18:02:07 +01:00
i915_buddy.c drm/i915/buddy: use kmemleak_update_trace 2019-08-16 16:28:41 +01:00
i915_buddy.h drm/i915: buddy allocator 2019-08-10 19:47:40 +01:00
i915_cmd_parser.c drm/i915: extract i915_memcpy.h from i915_drv.h 2019-08-09 12:03:25 +03:00
i915_debugfs.c drm/i915: Pull obj->userfault tracking under the ggtt->mutex 2019-08-22 08:53:41 +01:00
i915_debugfs.h
i915_drv.c drm/i915: Perform GGTT restore much earlier during resume 2019-10-07 10:44:46 -07:00
i915_drv.h drm/i915: to make vgpu ppgtt notificaiton as atomic operation 2019-09-06 09:53:12 -07:00
i915_fixed.h
i915_gem_evict.c drm/i915: Replace PIN_NONFAULT with calls to PIN_NOEVICT 2019-08-21 14:07:54 +01:00
i915_gem_fence_reg.c drm/i915: Replace i915_vma_put_fence() 2019-08-22 08:53:42 +01:00
i915_gem_fence_reg.h drm/i915: Track ggtt fence reservations under its own mutex 2019-08-22 08:53:40 +01:00
i915_gem_gtt.c drm/i915: to make vgpu ppgtt notificaiton as atomic operation 2019-09-06 09:53:12 -07:00
i915_gem_gtt.h drm/i915: Replace PIN_NONFAULT with calls to PIN_NOEVICT 2019-08-21 14:07:54 +01:00
i915_gem.c drm/i915: Flush the existing fence before GGTT read/write 2019-09-06 09:53:09 -07:00
i915_gem.h drm/i915: avoid including intel_drv.h via i915_drv.h->i915_trace.h 2019-08-07 12:43:14 +03:00
i915_getparam.c drm/i915: Isolate i915_getparam_ioctl() 2019-08-07 16:48:24 +01:00
i915_globals.c drm/i915: buddy allocator 2019-08-10 19:47:40 +01:00
i915_globals.h drm/i915: buddy allocator 2019-08-10 19:47:40 +01:00
i915_gpu_error.c Merge drm/drm-next into drm-intel-next-queued 2019-08-22 00:10:36 -07:00
i915_gpu_error.h drm/i915: Only include active engines in the capture state 2019-08-08 21:54:08 +01:00
i915_ioc32.c
i915_irq.c drm/i915/bdw+: Move misc display IRQ handling to it own function 2019-08-13 15:51:12 -07:00
i915_irq.h drm/i915: Extract general GT interrupt handlers 2019-08-12 15:36:13 +01:00
i915_memcpy.c drm/i915: extract i915_memcpy.h from i915_drv.h 2019-08-09 12:03:25 +03:00
i915_memcpy.h drm/i915: extract i915_memcpy.h from i915_drv.h 2019-08-09 12:03:25 +03:00
i915_mm.c drm/i915: Drop expectations of VM_IO from our GGTT mmappings 2019-08-07 12:06:07 +01:00
i915_params.c
i915_params.h
i915_pci.c drm/i915/gtt: disable 2M pages for pre-gen11 2019-08-10 13:19:00 +01:00
i915_perf.c drm/i915: extract i915_perf.h from i915_drv.h 2019-08-09 11:52:04 +03:00
i915_perf.h drm/i915: extract i915_perf.h from i915_drv.h 2019-08-09 11:52:04 +03:00
i915_pmu.c drm/i915: Convert a few more bland dmesg info to be device specific 2019-08-15 13:13:23 +01:00
i915_pmu.h
i915_priolist_types.h drm/i915: Push the wakeref->count deferral to the backend 2019-08-13 21:09:49 +01:00
i915_pvinfo.h
i915_query.c drm/i915/gt: Move the [class][inst] lookup for engines onto the GT 2019-08-06 15:00:43 +01:00
i915_query.h
i915_reg.h drm/i915/tgl: Updated Private PAT programming 2019-08-20 15:23:33 +01:00
i915_request.c drm/i915: Only enqueue already completed requests 2019-10-09 13:18:26 -07:00
i915_request.h drm/i915: Only enqueue already completed requests 2019-10-09 13:18:26 -07:00
i915_scatterlist.c
i915_scatterlist.h
i915_scheduler_types.h
i915_scheduler.c drm/i915: Push the wakeref->count deferral to the backend 2019-08-13 21:09:49 +01:00
i915_scheduler.h
i915_selftest.h drm/i915: make i915_selftest.h self-contained 2019-07-30 13:41:35 -07:00
i915_suspend.c drm/i915: extract i915_suspend.h from i915_drv.h 2019-08-09 12:03:05 +03:00
i915_suspend.h drm/i915: extract i915_suspend.h from i915_drv.h 2019-08-09 12:03:05 +03:00
i915_sw_fence_work.c drm/i915: Generalise the clflush dma-worker 2019-08-22 08:27:44 +01:00
i915_sw_fence_work.h drm/i915: Generalise the clflush dma-worker 2019-08-22 08:27:44 +01:00
i915_sw_fence.c Merge drm/drm-next into drm-intel-next-queued 2019-08-22 00:10:36 -07:00
i915_sw_fence.h Merge drm/drm-next into drm-intel-next-queued 2019-08-22 00:10:36 -07:00
i915_syncmap.c
i915_syncmap.h
i915_sysfs.c drm/i915: extract i915_sysfs.h from i915_drv.h 2019-08-09 11:52:09 +03:00
i915_sysfs.h drm/i915: extract i915_sysfs.h from i915_drv.h 2019-08-09 11:52:09 +03:00
i915_trace_points.c
i915_trace.h drm/i915: rename intel_drv.h to display/intel_display_types.h 2019-08-07 12:43:50 +03:00
i915_user_extensions.c
i915_user_extensions.h
i915_utils.c drm/i915: move printing and load error inject to i915_utils.[ch] 2019-08-09 11:51:58 +03:00
i915_utils.h drm/i915/execlists: Lift process_csb() out of the irq-off spinlock 2019-08-16 20:59:02 +01:00
i915_vgpu.c drm/i915: to make vgpu ppgtt notificaiton as atomic operation 2019-09-06 09:53:12 -07:00
i915_vgpu.h
i915_vma.c drm/i915: Replace i915_vma_put_fence() 2019-08-22 08:53:42 +01:00
i915_vma.h drm/i915: Replace i915_vma_put_fence() 2019-08-22 08:53:42 +01:00
intel_csr.c drm/i915/tgl: update DMC firmware to 2.04 2019-08-20 12:49:29 -07:00
intel_csr.h
intel_device_info.c drm/i915/tgl: add support for reading the timestamp frequency 2019-08-20 12:48:57 -07:00
intel_device_info.h drm/i915/tgl: Tigerlake only has global MOCS registers 2019-07-31 07:40:32 -07:00
intel_gvt.c drm/i915: Add i915 to i915_inject_probe_failure 2019-08-02 21:14:29 +01:00
intel_gvt.h
intel_pch.c drm/i915/cml: Add second PCH ID for CMP 2019-10-09 13:00:56 -07:00
intel_pch.h drm/i915/cml: Add second PCH ID for CMP 2019-10-09 13:00:56 -07:00
intel_pm.c drm/i915/tgl: Introduce initial Tiger Lake workarounds 2019-08-20 15:23:33 +01:00
intel_pm.h
intel_runtime_pm.c drm/i915: avoid including intel_drv.h via i915_drv.h->i915_trace.h 2019-08-07 12:43:14 +03:00
intel_runtime_pm.h Merge drm/drm-next into drm-intel-next-queued 2019-07-29 08:51:48 -07:00
intel_sideband.c drm/i915: remove unnecessary includes of intel_display_types.h header 2019-08-07 12:43:55 +03:00
intel_sideband.h
intel_uncore.c drm/i915: split out uncore_mmio_debug 2019-08-09 20:25:24 +01:00
intel_uncore.h drm/i915: split out uncore_mmio_debug 2019-08-09 20:25:24 +01:00
intel_wakeref.c drm/i915: Push the wakeref->count deferral to the backend 2019-08-13 21:09:49 +01:00
intel_wakeref.h drm/i915: Push the wakeref->count deferral to the backend 2019-08-13 21:09:49 +01:00
intel_wopcm.c drm/i915/wopcm: Fix SPDX tag location 2019-08-16 16:50:03 +01:00
intel_wopcm.h drm/i915/wopcm: Don't fail on WOPCM partitioning failure 2019-08-02 21:14:32 +01:00
Kconfig
Kconfig.debug drm-misc-next for 5.4: 2019-08-27 17:21:04 +10:00
Kconfig.profile
Makefile Kbuild updates for v5.4 2019-09-20 08:36:47 -07:00