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linux-stable/drivers/gpu/drm/i915
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Chris Wilson c216e90686 drm/i915/execlists: Reset ring registers on rebinding contexts 
Tvrtko uncovered a fun issue with recovering from a wedge device. In his
tests, he wedged the driver by injecting an unrecoverable hang whilst a
batch was spinning. As we reset the gpu in the middle of the spinner,
when resumed it would continue on from the next instruction in the ring
and write it's breadcrumb. However, on wedging we updated our
bookkeeping to indicate that the GPU had completed executing and would
restart from after the breadcrumb; so the emission of the stale
breadcrumb from before the reset came as a bit of a surprise.

A simple fix is to when rebinding the context into the GPU, we update
the ring register state in the context image to match our bookkeeping.
We already have to update the RING_START and RING_TAIL, so updating
RING_HEAD as well is trivial. This works because whenever we unbind the
context, we keep the bookkeeping in check; and on wedging we unbind all
contexts.

Testcase: igt/gem_eio
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180327210136.16750-1-chris@chris-wilson.co.uk
Tested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2018-03-28 20:26:03 +01:00
..
gvt i915: Re-use DEFINE_SHOW_ATTRIBUTE() macro 2018-03-16 15:59:49 +00:00
selftests drm/i915/selftests: Stress resets-vs-request-priority 2018-03-22 20:34:43 +00:00
dvo.h
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c drm/i915/dvo: Remove incorrect kerneldoc markups 2018-02-14 12:04:31 +00:00
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
i915_cmd_parser.c drm/i915/cmdparser: Do not check past the cmd length. 2018-02-06 11:41:40 -08:00
i915_debugfs.c drm/i915: use id from intel_shared_dpll.info 2018-03-27 10:35:41 -07:00
i915_drv.c drm/i915: Fix hibernation with ACPI S0 target state 2018-03-23 19:44:05 +02:00
i915_drv.h drm/i915/icl: HPD pin for port F 2018-03-23 14:59:09 -07:00
i915_gem.c drm/i915: Reorder early initialization 2018-03-23 17:03:24 +00:00
i915_gem.h drm/i915: Show GEM_TRACE when detecting a failed GPU idle 2018-03-13 21:41:09 +00:00
i915_gem_batch_pool.c drm/i915: Change parameters order in i915_gem_batch_pool_init 2018-03-09 22:21:41 +00:00
i915_gem_batch_pool.h drm/i915: Change parameters order in i915_gem_batch_pool_init 2018-03-09 22:21:41 +00:00
i915_gem_clflush.c drm: move read_domains and write_domain into i915 2018-02-16 14:12:48 +00:00
i915_gem_clflush.h
i915_gem_context.c drm/i915: Implement dynamic GuC WOPCM offset and size calculation 2018-03-14 15:35:33 +02:00
i915_gem_context.h drm/i915: Update missing parts after the rename to i915_request 2018-02-23 16:34:32 +00:00
i915_gem_dmabuf.c drm: move read_domains and write_domain into i915 2018-02-16 14:12:48 +00:00
i915_gem_evict.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_execbuffer.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_fence_reg.c drm/i915: Use INTEL_GEN everywhere 2018-02-09 22:29:02 +00:00
i915_gem_fence_reg.h
i915_gem_gtt.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_gtt.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_internal.c drm: move read_domains and write_domain into i915 2018-02-16 14:12:48 +00:00
i915_gem_object.c
i915_gem_object.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_render_state.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_render_state.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_shrinker.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_stolen.c drm/i915/stolen: Deduce base of reserved portion as top-size on vlv 2018-03-16 12:15:59 +00:00
i915_gem_tiling.c drm/i915: Refactor common list iteration over GGTT vma 2017-12-07 23:26:55 +00:00
i915_gem_timeline.c drm/i915: properly init lockdep class 2017-12-14 20:10:01 +02:00
i915_gem_timeline.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_userptr.c drm: move read_domains and write_domain into i915 2018-02-16 14:12:48 +00:00
i915_gemfs.c drm/i915: Disable THP until we have a GPU read BW W/A 2017-11-30 10:11:49 +02:00
i915_gemfs.h drm/i915: introduce simple gemfs 2017-10-07 10:11:41 +01:00
i915_gpu_error.c drm/i915: Move i915_gpu_error into its own header 2018-03-09 22:21:41 +00:00
i915_gpu_error.h drm/i915: Add control flags to i915_handle_error() 2018-03-20 14:55:58 +00:00
i915_ioc32.c drm/i915: Clean up ancient doc comments for i915_ioc32.c 2018-02-15 16:22:21 +00:00
i915_irq.c drm/i915: Use full serialisation around engine->irq_posted 2018-03-22 20:34:46 +00:00
i915_memcpy.c drm/i915: Do not enable movntdqa optimization in hypervisor guest 2017-12-22 11:12:15 +00:00
i915_mm.c
i915_oa_bdw.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_bdw.h
i915_oa_bxt.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_bxt.h
i915_oa_cflgt2.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_cflgt2.h drm/i915/perf: add support for Coffeelake GT2 2017-09-18 19:46:36 +01:00
i915_oa_cflgt3.c drm/i915/perf: Fix compiler warning for string truncation 2018-02-08 11:16:48 +00:00
i915_oa_cflgt3.h drm/i915/perf: add support for Coffeelake GT3 2017-11-13 15:59:03 +00:00
i915_oa_chv.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_chv.h
i915_oa_cnl.c drm/i915/perf: Fix compiler warning for string truncation 2018-02-08 11:16:49 +00:00
i915_oa_cnl.h drm/i915/perf: enable perf support on CNL 2017-11-13 15:59:24 +00:00
i915_oa_glk.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_glk.h
i915_oa_hsw.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_hsw.h
i915_oa_kblgt2.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_kblgt2.h
i915_oa_kblgt3.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_kblgt3.h
i915_oa_sklgt2.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_sklgt2.h
i915_oa_sklgt3.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_sklgt3.h
i915_oa_sklgt4.c drm/i915: ensure oa config uuid is null terminated 2017-11-02 14:52:58 +00:00
i915_oa_sklgt4.h
i915_params.c drm/i915: Enable inject_load_failure only in DEBUG config 2018-02-02 14:19:05 +00:00
i915_params.h drm/i915/guc: Default to non-verbose GuC logging 2018-03-19 12:23:02 +00:00
i915_pci.c drm/i915/icl: Enable the extra video decode and enhancement boxes for Icelake 11 2018-03-20 16:26:39 +02:00
i915_perf.c drm/i915/perf: fix perf stream opening lock 2018-03-01 14:32:37 +00:00
i915_pmu.c drm/i915/pmu: Work around compiler warnings on some kernel configs 2018-03-14 17:40:06 +00:00
i915_pmu.h drm/i915: Make header i915_pmu.h more robust 2018-03-09 22:21:41 +00:00
i915_pvinfo.h drm/i915: enable to read CSB and CSB write pointer from HWSP in GVT-g VM 2017-10-16 13:56:29 +03:00
i915_query.c drm/i915: expose rcs topology through query uAPI 2018-03-08 10:07:24 +00:00
i915_query.h drm/i915: add query uAPI 2018-03-08 10:07:18 +00:00
i915_reg.h drm/i915/gen11: add support for reading the timestamp frequency 2018-03-28 11:14:29 -07:00
i915_request.c drm/i915: Remove local timeline var from submit/unsubmit 2018-03-22 13:50:30 +00:00
i915_request.h drm/i915/breadcrumbs: Reduce signaler rbtree to a sorted list 2018-03-06 12:12:45 +00:00
i915_selftest.h drm/i915/selftests: Reduce the volume of the timeout message 2017-11-10 11:31:58 +00:00
i915_suspend.c drm/i915: Move i915_gem_restore_fences to i915_gem_resume 2017-09-29 12:30:17 +01:00
i915_sw_fence.c drm/i915/fence: Separate timeout mechanism for awaiting on dma-fences 2018-01-15 10:29:18 +00:00
i915_sw_fence.h
i915_syncmap.c drm/i915: Fix kerneldoc parameter markup 2018-02-08 15:08:51 +00:00
i915_syncmap.h
i915_sysfs.c drm/i915: Kick the rps worker when changing the boost frequency 2018-03-08 19:40:34 +00:00
i915_trace.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_trace_points.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i915_utils.h drm/i915: Reword warning for missing cases 2018-03-27 10:30:04 -07:00
i915_vgpu.c
i915_vgpu.h drm/i915: enable to read CSB and CSB write pointer from HWSP in GVT-g VM 2017-10-16 13:56:29 +03:00
i915_vma.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_vma.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
intel_acpi.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intel_atomic.c Merge tag 'drm-intel-next-2018-02-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2018-03-01 14:07:22 +10:00
intel_atomic_plane.c Merge tag 'drm-intel-next-2018-02-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2018-03-01 14:07:22 +10:00
intel_audio.c drm/i915/audio: fix check for av_enc_map overflow 2018-02-15 16:29:13 +02:00
intel_bios.c drm/i915: Fix DSI panels with v1 MIPI sequences without a DEASSERT sequence v3 2018-02-14 11:38:12 +01:00
intel_bios.h
intel_breadcrumbs.c drm/i915: Remove the impedance mismatch around intel_engine_enable_signaling 2018-03-12 22:06:19 +00:00
intel_cdclk.c drm/i915/icl: add the main CDCLK functions 2018-02-13 10:16:04 -02:00
intel_color.c drm/i915: Don't mangle the CTM on pre-HSW 2018-02-28 15:17:12 +02:00
intel_crt.c drm/i915: Reinitialize sink scrambling/TMDS clock ratio on HPD 2018-03-06 17:57:24 -05:00
intel_csr.c drm/i915/dmc: DMC 1.07 for Cannonlake 2018-01-04 16:29:12 -08:00
intel_ddi.c drm/i915: use id from intel_shared_dpll.info 2018-03-27 10:35:41 -07:00
intel_device_info.c drm/i915/gen11: add support for reading the timestamp frequency 2018-03-28 11:14:29 -07:00
intel_device_info.h drm/i915/icl: Added ICL 11 slice, subslice and EU fuse detection 2018-03-21 10:36:33 +02:00
intel_display.c drm/i915: use flags from dpll_info embedded in intel_shared_dpll 2018-03-27 10:35:50 -07:00
intel_display.h drm/i915/psr: New power domain for AUX IO. 2018-02-27 12:05:43 -08:00
intel_dp.c drm/i915: Kill the remaining CHV HBR2 leftovers 2018-03-16 21:33:56 +02:00
intel_dp_aux_backlight.c drm/i915: Rename global i915 to i915_modparams 2017-09-22 14:50:36 +03:00
intel_dp_link_training.c drm/i915: Track whether the DP link is trained or not 2018-03-06 17:59:08 -05:00
intel_dp_mst.c drm/i915: Nuke intel_digital_port->port 2017-11-09 20:06:14 +02:00
intel_dpio_phy.c drm: intel_dpio_phy: fix kernel-doc comments at nested struct 2018-02-19 12:19:04 +02:00
intel_dpll_mgr.c drm/i915: reorder dpll_info members 2018-03-27 10:36:00 -07:00
intel_dpll_mgr.h drm/i915: reorder dpll_info members 2018-03-27 10:36:00 -07:00
intel_drv.h drm/i915/icl: Added 5k source scaling support for Gen11 platform 2018-03-23 15:29:34 -07:00
intel_dsi.c drm/i915: Provide a device level .mode_valid() hook 2018-01-29 21:55:07 +02:00
intel_dsi.h
intel_dsi_dcs_backlight.c
intel_dsi_pll.c
intel_dsi_vbt.c
intel_dvo.c Merge tag 'drm-intel-next-2018-02-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2018-03-01 14:07:22 +10:00
intel_engine_cs.c drm/i915: Include submission tasklet state in engine dump 2018-03-27 12:13:20 +01:00
intel_fbc.c drm/i915: Handle changing enable_fbc parameter at runtime better. 2018-03-07 10:15:44 +01:00
intel_fbdev.c drm/i915/frontbuffer: Pull frontbuffer_flush out of gem_obj_pin_to_display 2018-03-13 13:49:39 -07:00
intel_fifo_underrun.c drm/i915: Don't rmw PIPESTAT enable bits 2017-09-25 16:54:09 +03:00
intel_frontbuffer.c drm/i915/psr: Use more PSR HW tracking. 2018-03-13 13:50:22 -07:00
intel_frontbuffer.h
intel_gpu_commands.h drm/i915: Split GPU commands definitions into separate header 2018-03-15 10:00:03 +00:00
intel_guc.c drm/i915: Use correct reST syntax for WOPCM and GuC kernel-doc diagrams 2018-03-28 14:42:56 +03:00
intel_guc.h drm/i915/guc: Move enable/disable msg functions to GuC header 2018-03-21 15:07:15 +00:00
intel_guc_ads.c drm/i915/guc: Rename guc_ggtt_offset to intel_guc_ggtt_offset 2018-03-14 15:35:31 +02:00
intel_guc_ads.h drm/i915/guc : Decoupling ADS and logs from submission 2018-01-03 14:02:10 +00:00
intel_guc_ct.c drm/i915/guc: Unify parameters of public CT functions 2018-03-21 15:11:03 +00:00
intel_guc_ct.h drm/i915/guc: Unify parameters of public CT functions 2018-03-21 15:11:03 +00:00
intel_guc_fw.c drm/i915/uc: Fetch uC firmware in init_early 2018-03-23 17:03:24 +00:00
intel_guc_fw.h drm/i915/guc: Move firmware selection to init_early 2017-12-06 14:41:47 +00:00
intel_guc_fwif.h drm/i915/guc: Drop union guc_log_control 2018-03-21 15:07:14 +00:00
intel_guc_log.c drm/i915/guc: Handle GuC log flush event in dedicated function 2018-03-21 15:09:14 +00:00
intel_guc_log.h drm/i915/guc: Handle GuC log flush event in dedicated function 2018-03-21 15:09:14 +00:00
intel_guc_reg.h drm/i915/guc: Check the locking status of GuC WOPCM registers 2018-03-14 15:35:37 +02:00
intel_guc_submission.c drm/i915/guc: Demote GuC error messages 2018-03-19 12:23:02 +00:00
intel_guc_submission.h drm/i915/guc: Move GuC workqueue allocations outside of the mutex 2017-12-14 08:06:54 +00:00
intel_gvt.c drm/i915/guc: Introduce USES_GUC_xxx helper macros 2017-12-06 14:41:49 +00:00
intel_gvt.h
intel_hangcheck.c drm/i915: Add control flags to i915_handle_error() 2018-03-20 14:55:58 +00:00
intel_hdcp.c drm/i915: Reauthenticate HDCP on failure 2018-02-05 12:59:23 -05:00
intel_hdmi.c drm/i915: Don't spew errors when resetting HDMI scrambling/bit clock ratio fails 2018-03-23 17:16:31 +02:00
intel_hotplug.c drm/i915/icl: HPD pin for port F 2018-03-23 14:59:09 -07:00
intel_huc.c drm/i915/huc: Check HuC status in dedicated function 2018-03-21 15:04:28 +00:00
intel_huc.h drm/i915/huc: Check HuC status in dedicated function 2018-03-21 15:04:28 +00:00
intel_huc_fw.c drm/i915/uc: Fetch uC firmware in init_early 2018-03-23 17:03:24 +00:00
intel_huc_fw.h drm/i915/uc: Make GuC/HuC fw fetch and loading functions/file structure symmetric 2018-03-02 09:04:45 +00:00
intel_i2c.c Add HDCP support to i915 drm driver. 2018-02-16 09:36:04 +10:00
intel_lpe_audio.c drm/i915: Avoid leaking lpe audio platdev.data 2018-02-08 17:28:53 +00:00
intel_lrc.c drm/i915/execlists: Reset ring registers on rebinding contexts 2018-03-28 20:26:03 +01:00
intel_lrc.h drm/i915/icl: Enhanced execution list support 2018-03-07 15:07:31 +02:00
intel_lrc_reg.h drm/i915/icl: Add Indirect Context Offset for Gen11 2018-03-07 15:07:39 +02:00
intel_lspcon.c drm/i915: For HPD connected port use hpd_pin instead of port. 2018-01-30 10:24:19 -08:00
intel_lvds.c drm/i915/lvds: Fixup commentary 2018-02-14 12:04:33 +00:00
intel_mocs.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
intel_mocs.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
intel_modes.c drm/i915: remove redundant ELD connector type update 2018-01-19 11:58:48 +02:00
intel_opregion.c drm/i915: Move opregion definitions to dedicated intel_opregion.h 2017-12-22 09:19:48 +00:00
intel_opregion.h drm/i915: Move opregion definitions to dedicated intel_opregion.h 2017-12-22 09:19:48 +00:00
intel_overlay.c drm/i915/frontbuffer: Pull frontbuffer_flush out of gem_obj_pin_to_display 2018-03-13 13:49:39 -07:00
intel_panel.c drm/i915/panel: Split range scaling calculation for readiblity 2018-02-14 12:02:44 +00:00
intel_pipe_crc.c drm/i915: Handle pipe CRC around enabling/disabling pipe. 2018-03-08 19:09:21 +01:00
intel_pm.c drm/i915: Avoid setting ring freq on invalid rps freqs 2018-03-23 11:21:14 +02:00
intel_psr.c drm/i915/psr: Remove open-coded PSR AUX transactions for SKL+ 2018-03-21 13:23:36 -07:00
intel_renderstate.h
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_ringbuffer.c drm/i915: Prefer memset64() when filling the iomap 2018-03-19 14:42:40 +00:00
intel_ringbuffer.h drm/i915/icl: Update subslice define for ICL 11 2018-03-20 16:26:46 +02:00
intel_runtime_pm.c drm/i915/psr: New power domain for AUX IO. 2018-02-27 12:05:43 -08:00
intel_sdvo.c drm/i915: Convert intel_hpd_irq_event() into an encoder hotplug hook 2018-03-06 17:56:29 -05:00
intel_sdvo_regs.h
intel_sideband.c drm/i915: Move rps.hw_lock to dev_priv and s/hw_lock/pcu_lock 2017-10-11 08:56:56 +01:00
intel_sprite.c Merge tag 'drm-intel-next-2018-02-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2018-03-01 14:07:22 +10:00
intel_tv.c drm/i915/tv: Cleanup up obsolete comments 2018-02-14 12:02:39 +00:00
intel_uc.c drm/i915/uc: Fetch uC firmware in init_early 2018-03-23 17:03:24 +00:00
intel_uc.h drm/i915/uc: Fetch uC firmware in init_early 2018-03-23 17:03:24 +00:00
intel_uc_fw.c drm/i915/guc: Fix null pointer dereference when GuC FW is not available 2018-03-23 17:03:24 +00:00
intel_uc_fw.h drm/i915: Implement dynamic GuC WOPCM offset and size calculation 2018-03-14 15:35:33 +02:00
intel_uncore.c drm/i915: Flush pending interrupt following a GPU reset 2018-03-22 20:34:50 +00:00
intel_uncore.h drm/i915/icl: Check for fused-off VDBOX and VEBOX instances 2018-03-20 16:26:28 +02:00
intel_vbt_defs.h drm/i915/bios: add DP max link rate to VBT child device struct 2018-02-07 12:32:14 -08:00
intel_wopcm.c drm/i915: Use correct reST syntax for WOPCM and GuC kernel-doc diagrams 2018-03-28 14:42:56 +03:00
intel_wopcm.h drm/i915/guc: Check the locking status of GuC WOPCM registers 2018-03-14 15:35:37 +02:00
Kconfig drm/i915/fence: Avoid del_timer_sync() from inside a timer 2017-09-19 13:06:21 +01:00
Kconfig.debug drm/i915: Select STACKDEPOT for DRM_I915_DEBUG 2018-03-20 15:14:01 +01:00
Makefile drm/i915: Implement dynamic GuC WOPCM offset and size calculation 2018-03-14 15:35:33 +02:00