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
..
display	drm/i915: Split some long lines	2020-04-24 17:59:59 +03:00
gem	drm/i915: Only close vma we open	2020-04-24 11:24:45 +01:00
gt	drm/i915/execlists: Track inflight CCID	2020-04-28 22:17:36 +01:00
gvt	drm/i915/execlists: Avoid reusing the same logical CCID	2020-04-28 22:17:36 +01:00
selftests	drm/i915/execlists: Track inflight CCID	2020-04-28 22:17:36 +01:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
i915_active_types.h
i915_active.c	drm/i915: Allow asynchronous waits on the i915_active barriers	2020-04-06 19:48:06 +01:00
i915_active.h	drm/i915: Allow asynchronous waits on the i915_active barriers	2020-04-06 19:48:06 +01:00
i915_buddy.c	drm/i915/buddy: avoid double list_add	2020-03-06 14:33:08 +00:00
i915_buddy.h
i915_cmd_parser.c
i915_debugfs_params.c
i915_debugfs_params.h
i915_debugfs.c	drm/i915/gt: Use the RPM config register to determine clk frequencies	2020-04-24 19:10:17 +01:00
i915_debugfs.h	drm/i915: split out display debugfs to a separate file	2020-02-14 13:26:51 +02:00
i915_drv.c	drm/i915: Refactor setting dma info to a common helper	2020-04-18 07:49:11 +01:00
i915_drv.h	drm/i915: Update DRIVER_DATE to 20200417	2020-04-17 09:35:00 +03:00
i915_fixed.h
i915_gem_evict.c	drm/i915/evict: watch out for unevictable nodes	2020-04-08 21:39:48 +01:00
i915_gem_gtt.c	drm/i915: significantly reduce the use of <drm/i915_drm.h>	2020-02-27 08:35:09 +02:00
i915_gem_gtt.h
i915_gem.c	drm/i915/gem: Drop cached obj->bind_count	2020-04-02 01:17:39 +01:00
i915_gem.h
i915_getparam.c
i915_globals.c
i915_globals.h
i915_gpu_error.c	drm/i915: Drop rq->ring->vma peeking from error capture	2020-04-24 22:14:35 +01:00
i915_gpu_error.h	drm/i915: Drop rq->ring->vma peeking from error capture	2020-04-24 22:14:35 +01:00
i915_ioc32.c	drm/i915: add i915_ioc32.h for compat	2020-03-02 13:32:37 +02:00
i915_ioc32.h	drm/i915: add i915_ioc32.h for compat	2020-03-02 13:32:37 +02:00
i915_irq.c	drm/i915: Use proper fault mask in interrupt postinstall too	2020-04-27 11:36:41 -07:00
i915_irq.h	drm/i915: Convert to CRTC VBLANK callbacks	2020-02-13 13:08:13 +01:00
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
i915_params.c
i915_params.h	drm/i915: Mark i915.reset as unsigned	2020-02-05 18:51:52 +00:00
i915_pci.c	drm/i915: Refactor setting dma info to a common helper	2020-04-18 07:49:11 +01:00
i915_perf_types.h	drm/i915/perf: Schedule oa_config after modifying the contexts	2020-03-30 18:20:34 +01:00
i915_perf.c	drm/i915/execlists: Track inflight CCID	2020-04-28 22:17:36 +01:00
i915_perf.h
i915_pmu.c	drm/i915/pmu: prefer struct drm_device based logging	2020-04-08 13:49:35 +03:00
i915_pmu.h	drm/i915: significantly reduce the use of <drm/i915_drm.h>	2020-02-27 08:35:09 +02:00
i915_priolist_types.h
i915_pvinfo.h
i915_query.c
i915_query.h
i915_reg.h	drm/i915: Use indirect ctx bb to mend CMD_BUF_CCTL	2020-04-25 19:08:56 +01:00
i915_request.c	drm/i915: Keep a per-engine request pool	2020-04-03 15:20:03 +01:00
i915_request.h	drm/i915: Keep a per-engine request pool	2020-04-03 15:20:03 +01:00
i915_scatterlist.c
i915_scatterlist.h
i915_scheduler_types.h
i915_scheduler.c	drm/i915/gt: Include a few tracek for timeslicing	2020-03-31 21:42:12 +01:00
i915_scheduler.h
i915_selftest.h
i915_suspend.c	drm/i915: significantly reduce the use of <drm/i915_drm.h>	2020-02-27 08:35:09 +02:00
i915_suspend.h
i915_sw_fence_work.c	drm/i915: Immediately execute the fenced work	2020-03-25 13:05:04 +00:00
i915_sw_fence_work.h	drm/i915: Immediately execute the fenced work	2020-03-25 13:05:04 +00:00
i915_sw_fence.c	drm/i915: Prefer '%ps' for printing function symbol names	2020-03-19 16:18:14 +00:00
i915_sw_fence.h	drm/i915/gem: Don't leak non-persistent requests on changing engines	2020-02-11 21:58:39 +00:00
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	drm/i915/gt: Expose engine properties via sysfs	2020-02-28 22:03:19 +00:00
i915_sysfs.h
i915_trace_points.c
i915_trace.h
i915_user_extensions.c
i915_user_extensions.h
i915_utils.c	drm/i915: Avoid setting timer->expires to 0	2020-04-03 16:33:09 +01:00
i915_utils.h	drm/i915: be more solid in checking the alignment	2020-03-11 23:12:39 +02:00
i915_vgpu.c	drm/i915/vgpu: improve vgpu abstractions	2020-03-03 17:46:54 +02:00
i915_vgpu.h	drm/i915/vgpu: improve vgpu abstractions	2020-03-03 17:46:54 +02:00
i915_vma_types.h	drm/i915/gem: Extract transient execbuf flags from i915_vma	2020-03-03 21:52:51 +00:00
i915_vma.c	drm/i915: Only close vma we open	2020-04-24 11:24:45 +01:00
i915_vma.h	drm/i915/gt: Make fence revocation unequivocal	2020-04-01 23:34:17 +01:00
intel_device_info.c	drm/i915: Refactor setting dma info to a common helper	2020-04-18 07:49:11 +01:00
intel_device_info.h	drm/i915: Refactor setting dma info to a common helper	2020-04-18 07:49:11 +01:00
intel_dram.c	drm/i915/dram: prefer struct drm_device based logging	2020-04-08 13:49:35 +03:00
intel_dram.h	drm/i915: split out intel_dram.[ch] from i915_drv.c	2020-02-27 09:16:01 +02:00
intel_gvt.c	drm/i915/gvt: make intel_gvt_active internal to intel_gvt	2020-03-03 17:47:03 +02:00
intel_gvt.h
intel_memory_region.c
intel_memory_region.h
intel_pch.c
intel_pch.h
intel_pm.c	drm/i915/tgl: Wa_14011059788	2020-04-28 11:14:34 -07:00
intel_pm.h	drm/i915: Add pre/post plane updates for SAGV	2020-04-17 20:41:00 +03:00
intel_region_lmem.c
intel_region_lmem.h
intel_runtime_pm.c
intel_runtime_pm.h
intel_sideband.c	drm/i915: drop a bunch of superfluous inlines	2020-04-21 09:31:37 +03:00
intel_sideband.h
intel_uncore.c	drm/i915/icl: Update forcewake firmware ranges	2020-04-17 19:35:43 +01:00
intel_uncore.h	drm/i915/selftests: Measure the energy consumed while in RC6	2020-03-25 11:33:05 +00:00
intel_wakeref.c	drm/i915: Extend intel_wakeref to support delayed puts	2020-03-23 12:51:05 +00:00
intel_wakeref.h	drm/i915: Extend intel_wakeref to support delayed puts	2020-03-23 12:51:05 +00:00
intel_wopcm.c	drm/i915: drop a bunch of superfluous inlines	2020-04-21 09:31:37 +03:00
intel_wopcm.h
Kconfig	drm/i915: Update drm/i915 bug filing URL	2020-02-17 21:16:45 +02:00
Kconfig.debug
Kconfig.profile	drm/i915/gen12: Disable preemption timeout	2020-03-12 13:46:01 +00:00
Kconfig.unstable
Makefile	drm/i915: re-disable -Wframe-address	2020-04-27 09:58:27 +01:00
vlv_suspend.c	drm/i915: switch vlv_suspend to use intel uncore register accessors	2020-02-17 11:29:51 +02:00
vlv_suspend.h	drm/i915: split out vlv/chv specific suspend/resume code	2020-02-17 11:29:35 +02:00