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5d26669237
linux/drivers/gpu/drm/i915
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Chris Wilson 5d26669237 drm/i915: Filter out spurious execlists context-switch interrupts 
Back in commit a4b2b01523 ("drm/i915: Don't mark an execlists
context-switch when idle") we noticed the presence of late
context-switch interrupts. We were able to filter those out by looking
at whether the ELSP remained active, but in commit beecec9017
("drm/i915/execlists: Preemption!") that became problematic as we now
anticipate receiving a context-switch event for preemption while ELSP
may be empty. To restore the spurious interrupt suppression, add a
counter for the expected number of pending context-switches and skip if
we do not need to handle this interrupt to make forward progress.

v2: Don't forget to switch on for preempt.
v3: Reduce the counter to a on/off boolean tracker. Declare the HW as
active when we first submit, and idle after the final completion event
(with which we confirm the HW says it is idle), and track each source
of activity separately. With a finite number of sources, it should aide
us in debugging which gets stuck.

Fixes: beecec9017 ("drm/i915/execlists: Preemption!")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171023213237.26536-3-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
(cherry picked from commit 4a118ecbe9)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-11-09 16:18:11 +02:00
..
gvt Linux 4.14-rc7 2017-11-02 12:40:41 +10:00
selftests drm/i915: Convert timers to use timer_setup() 2017-10-18 14:56:10 +03:00
dvo_ch7xxx.c drm/i915/dvo: fix debug logging on unknown DID 2017-06-01 15:53:03 +03:00
dvo_ch7017.c drm/i915/lvds: Remove magic from PLL programming 2017-05-10 13:47:55 +03:00
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
dvo.h
i915_cmd_parser.c drm/i915: Recreate vmapping even when the object is pinned 2017-08-30 12:08:11 -07:00
i915_debugfs.c drm/i915: Flush the idle-worker for debugfs/i915_drop_caches 2017-10-18 15:46:11 +01:00
i915_drv.c drm/i915/userptr: Drop struct_mutex before cleanup 2017-10-12 09:11:32 +01:00
i915_drv.h drm/i915: Update DRIVER_DATE to 20171023 2017-10-23 11:55:13 +03:00
i915_gem_batch_pool.c drm/i915: Reinstate reservation_object zapping for batch_pool objects 2017-06-14 14:06:22 +01:00
i915_gem_batch_pool.h
i915_gem_clflush.c drm/i915: Refactor testing obj->mm.pages 2017-10-16 20:44:19 +01:00
i915_gem_clflush.h drm/i915: Force CPU synchronisation even if userspace requests ASYNC 2017-07-27 22:07:24 +02:00
i915_gem_context.c drm/i915/scheduler: Support user-defined priorities 2017-10-04 17:52:46 +01:00
i915_gem_context.h drm/i915: Replace execbuf vma ht with an idr 2017-08-18 11:59:02 +01:00
i915_gem_dmabuf.c drm/i915: s/sg_mask/sg_page_sizes/ 2017-10-09 17:07:29 +01:00
i915_gem_evict.c Linux 4.14-rc7 2017-11-02 12:40:41 +10:00
i915_gem_execbuffer.c drm/i915: Try a minimal attempt to insert the whole object for relocations 2017-10-09 17:07:29 +01:00
i915_gem_fence_reg.c drm/i915: Track user GTT faulting per-vma 2017-10-09 17:07:29 +01:00
i915_gem_fence_reg.h
i915_gem_gtt.c drm/i915: Move dev_priv->mm.[un]bound_list to its own lock 2017-10-16 20:44:19 +01:00
i915_gem_gtt.h drm/i915: support 64K pages for the 48b PPGTT 2017-10-07 10:11:57 +01:00
i915_gem_internal.c drm/i915: s/sg_mask/sg_page_sizes/ 2017-10-09 17:07:29 +01:00
i915_gem_object.c drm/i915: Split obj->cache_coherent to track r/w 2017-08-15 15:46:57 +01:00
i915_gem_object.h drm/i915: Move dev_priv->mm.[un]bound_list to its own lock 2017-10-16 20:44:19 +01:00
i915_gem_render_state.c drm/i915: Refactor testing obj->mm.pages 2017-10-16 20:44:19 +01:00
i915_gem_render_state.h
i915_gem_request.c drm/i915: Use rcu instead of stop_machine in set_wedged 2017-10-11 17:51:21 +02:00
i915_gem_request.h drm/i915/scheduler: Support user-defined priorities 2017-10-04 17:52:46 +01:00
i915_gem_shrinker.c drm/i915: Set our shrinker->batch to 4096 (~16MiB) 2017-10-16 20:44:19 +01:00
i915_gem_stolen.c drm/i915: Move dev_priv->mm.[un]bound_list to its own lock 2017-10-16 20:44:19 +01:00
i915_gem_tiling.c drm/i915: Refactor testing obj->mm.pages 2017-10-16 20:44:19 +01:00
i915_gem_timeline.c drm/i915: Squash repeated awaits on the same fence 2017-05-03 11:08:48 +01:00
i915_gem_timeline.h drm/i915: Rename intel_timeline.sync_seqno[] to .global_sync[] 2017-05-03 11:08:52 +01:00
i915_gem_userptr.c drm/i915: Fixup userptr mmu notifier registration error handling 2017-10-18 09:25:39 +01:00
i915_gem.c Linux 4.14-rc7 2017-11-02 12:40:41 +10:00
i915_gem.h drm/i915: Squash repeated awaits on the same fence 2017-05-03 11:08:48 +01:00
i915_gemfs.c drm/i915/gemfs: enable THP 2017-10-07 10:11:43 +01:00
i915_gemfs.h drm/i915: introduce simple gemfs 2017-10-07 10:11:41 +01:00
i915_gpu_error.c drm/i915: Name i915_runtime_pm structure in dev_priv as "runtime_pm" 2017-10-11 08:56:54 +01:00
i915_guc_reg.h
i915_guc_submission.c drm/i915: Filter out spurious execlists context-switch interrupts 2017-11-09 16:18:11 +02:00
i915_guc_submission.h drm/i915: Unify uC variable types to avoid flooding checkpatch.pl 2017-10-06 14:09:40 +03:00
i915_ioc32.c
i915_irq.c drm/i915: Filter out spurious execlists context-switch interrupts 2017-11-09 16:18:11 +02:00
i915_memcpy.c
i915_mm.c
i915_oa_bdw.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_bdw.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_bxt.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_bxt.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_cflgt2.c drm/i915/perf: add support for Coffeelake GT2 2017-09-18 19:46:36 +01:00
i915_oa_cflgt2.h drm/i915/perf: add support for Coffeelake GT2 2017-09-18 19:46:36 +01:00
i915_oa_chv.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_chv.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_glk.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_glk.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_hsw.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_hsw.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_kblgt2.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_kblgt2.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_kblgt3.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_kblgt3.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_sklgt2.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_sklgt2.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_sklgt3.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_sklgt3.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_oa_sklgt4.c drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs 2017-08-03 18:18:44 +01:00
i915_oa_sklgt4.h drm/i915/perf: prune OA configs 2017-08-03 18:18:05 +01:00
i915_params.c drm/i915: Remove use_mmio_flip modparm, v2. 2017-10-04 15:51:09 +02:00
i915_params.h drm/i915: Remove use_mmio_flip modparm, v2. 2017-10-04 15:51:09 +02:00
i915_pci.c drm/i915: remove g4x lowfreq_avail and has_pipe_cxsr 2017-10-19 15:52:52 +03:00
i915_perf.c Linux 4.14-rc7 2017-11-02 12:40:41 +10:00
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_reg.h Linux 4.14-rc7 2017-11-02 12:40:41 +10:00
i915_selftest.h drm/i915: Don't use MI_STORE_DWORD_IMM on Sandybridge/vcs 2017-08-18 11:55:02 +01:00
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: Convert timers to use timer_setup() 2017-10-18 14:56:10 +03:00
i915_sw_fence.h main drm pull for v4.13 2017-07-09 18:48:37 -07:00
i915_syncmap.c drm/i915: Squash repeated awaits on the same fence 2017-05-03 11:08:48 +01:00
i915_syncmap.h drm/i915: Squash repeated awaits on the same fence 2017-05-03 11:08:48 +01:00
i915_sysfs.c drm/i915: Rename intel_enable_rc6 to intel_rc6_enabled 2017-10-11 08:57:02 +01:00
i915_trace_points.c
i915_trace.h drm/i915: Remove defunct trace points 2017-10-04 15:19:20 +01:00
i915_utils.h drm/i915: Try harder to finish the idle-worker 2017-10-06 17:49:46 +01:00
i915_vgpu.c drm/i915: Enable guest i915 full ppgtt functionality 2017-08-15 10:12:48 +08:00
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: Move dev_priv->mm.[un]bound_list to its own lock 2017-10-16 20:44:19 +01:00
i915_vma.h drm/i915: Track user GTT faulting per-vma 2017-10-09 17:07:29 +01:00
intel_acpi.c ACPI: Switch to use generic guid_t in acpi_evaluate_dsm() 2017-06-07 12:20:49 +02:00
intel_atomic_plane.c drm/i915: Pass proper old/new states to intel_plane_atomic_check_with_state() 2017-09-01 16:48:24 +03:00
intel_atomic.c drm/i915/cnl: Fix Cannonlake scaler mode programing. 2017-06-12 09:45:55 -07:00
intel_audio.c drm/i915: Don't relay on I915_MAX_PIPES 2017-10-10 18:07:48 +03:00
intel_bios.c This time really the last i915 batch for v4.15: 2017-11-04 05:43:44 +10:00
intel_bios.h
intel_breadcrumbs.c drm/i915: Convert timers to use timer_setup() 2017-10-18 14:56:10 +03:00
intel_cdclk.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_color.c drm/i915: Use crtc_state_is_legacy_gamma in intel_color_check 2017-10-09 10:33:23 -07:00
intel_crt.c drm/i915/crt: split compute_config hook by platforms 2017-10-19 15:52:53 +03:00
intel_csr.c drm/i915: Update DMC firmware load error messages 2017-10-16 18:53:28 +03:00
intel_ddi.c Linux 4.14-rc7 2017-11-02 12:40:41 +10:00
intel_device_info.c drm/i915/cnl: Add support slice/subslice/eu configs 2017-09-26 13:02:44 -07:00
intel_display.c Merge tag 'drm-intel-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2017-10-20 10:56:10 +10:00
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: Explicit the connector name for DP link training result 2017-07-19 08:32:42 +02:00
intel_dp_mst.c drm/i915: Handle drm-layer errors in intel_dp_add_mst_connector 2017-10-17 18:23:30 +03:00
intel_dp.c drm/i915: Integrate BXT into intel_ddi_dp_voltage_max() 2017-10-19 15:35:30 +03:00
intel_dpio_phy.c drm/i915: Fix DDI PHY init if it was already on 2017-10-03 13:47:29 -07:00
intel_dpll_mgr.c drm/i915/cnl: Fix PLL initialization for HDMI. 2017-10-16 17:11:06 -07:00
intel_dpll_mgr.h drm/i915/cnl: Initialize PLLs 2017-06-12 09:42:18 -07:00
intel_drv.h drm/i915: remove g4x lowfreq_avail and has_pipe_cxsr 2017-10-19 15:52:52 +03:00
intel_dsi_dcs_backlight.c drm/i915: Initialize 'data' in intel_dsi_dcs_backlight.c 2017-08-16 18:02:00 +03:00
intel_dsi_pll.c drm/i915/glk: Validate only DSI PORT A PLL divider 2017-02-28 11:54:52 +02:00
intel_dsi_vbt.c drm/i915/bxt: use NULL for GPIO connection ID 2017-08-21 11:52:29 +03:00
intel_dsi.c drm/i915: Use existing DSI backlight ports info 2017-10-20 11:28:49 +03:00
intel_dsi.h drm/i915/dsi: arrange intel_dsi.h according to relevant files 2017-03-07 15:18:43 +02:00
intel_dvo.c drm/i915: Reuse normal state readout for LVDS/DVO fixed mode 2017-10-11 19:44:19 +03:00
intel_engine_cs.c drm/i915: Filter out spurious execlists context-switch interrupts 2017-11-09 16:18:11 +02:00
intel_fbc.c drm/i915: adjust get_crtc_fence_y_offset() to use base.y instead of crtc.y 2017-10-18 17:02:45 +03:00
intel_fbdev.c drm/i915: Replace *_reference/unreference() or *_ref/unref with _get/put() 2017-10-13 16:53:59 +02:00
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: Remove 'retire' parameter from intel_fb_obj_flush 2017-02-22 12:12:17 +00:00
intel_frontbuffer.h drm/i915: Remove 'retire' parameter from intel_fb_obj_flush 2017-02-22 12:12:17 +00:00
intel_guc_ct.c drm/i915/guc: Introduce buffer based cmd transport 2017-05-26 13:26:53 +01:00
intel_guc_ct.h drm/i915/guc: Introduce buffer based cmd transport 2017-05-26 13:26:53 +01:00
intel_guc_fw.c drm/i915/uc: Unify firmware loading 2017-10-16 18:53:29 +03:00
intel_guc_fw.h drm/i915/guc: Rename intel_guc_loader.c to intel_guc_fw.c 2017-10-16 18:53:25 +03:00
intel_guc_fwif.h drm/i915/guc: Small fixups post code move 2017-10-16 18:53:23 +03:00
intel_guc_log.c drm/i915: Unify uC variable types to avoid flooding checkpatch.pl 2017-10-06 14:09:40 +03:00
intel_guc_log.h drm/i915: Unify uC variable types to avoid flooding checkpatch.pl 2017-10-06 14:09:40 +03:00
intel_guc.c drm/i915/guc: Small fixups post code move 2017-10-16 18:53:23 +03:00
intel_guc.h drm/i915/guc: Rename intel_guc_loader.c to intel_guc_fw.c 2017-10-16 18:53:25 +03:00
intel_gvt.c drm/i915: Rename global i915 to i915_modparams 2017-09-22 14:50:36 +03:00
intel_gvt.h drm/i915/gvt: Add gvt options sanitize function 2017-05-30 15:59:47 +03:00
intel_hangcheck.c drm/i915: Rename global i915 to i915_modparams 2017-09-22 14:50:36 +03:00
intel_hdmi.c drm/i915: Remove mostly duplicated video DIP handling from PSR code 2017-10-17 12:38:58 +03:00
intel_hotplug.c drm/i915: Introduce intel_hpd_pin function. 2017-08-11 11:53:47 -07:00
intel_huc.c drm/i915/huc: Move fw select function 2017-10-16 18:53:30 +03:00
intel_huc.h drm/i915/huc: Fix includes in intel_huc.c 2017-10-06 16:01:15 +01:00
intel_i2c.c drm/i915: Make i2c lock ops static 2017-09-01 10:30:40 -07:00
intel_lpe_audio.c drm/i915: Stop pretending to mask/unmask LPE audio interrupts 2017-05-26 11:51:18 +03:00
intel_lrc.c drm/i915: Filter out spurious execlists context-switch interrupts 2017-11-09 16:18:11 +02:00
intel_lrc.h drm/i915/execlists: Distinguish the incomplete context notifies 2017-10-04 17:52:45 +01:00
intel_lspcon.c drm/i915: Add retries for LSPCON detection 2017-10-13 12:15:10 +03:00
intel_lvds.c drm/i915: Allow PCH platforms fall back to BIOS LVDS mode 2017-10-11 21:43:30 +03:00
intel_mocs.c drm/i915/cnl: Cannonlake has same MOCS table than Skylake. 2017-06-07 07:29:51 -07:00
intel_mocs.h
intel_modes.c drm/i915: always update ELD connector type after get modes 2017-09-26 09:14:20 -07:00
intel_opregion.c drm/i915: Rename global i915 to i915_modparams 2017-09-22 14:50:36 +03:00
intel_overlay.c drm: Pass struct drm_file * to __drm_mode_object_find [v2] 2017-10-12 10:03:04 +10:00
intel_panel.c drm/i915: Rename global i915 to i915_modparams 2017-09-22 14:50:36 +03:00
intel_pipe_crc.c drm/i915: Favor for_each_pipe() macro 2017-10-10 18:29:52 +03:00
intel_pm.c Linux 4.14-rc7 2017-11-02 12:40:41 +10:00
intel_psr.c drm/i915: Remove mostly duplicated video DIP handling from PSR code 2017-10-17 12:38:58 +03:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c drm/i915/gen9: Send all components in VF state 2017-08-14 12:15:49 +03:00
intel_renderstate.h
intel_ringbuffer.c drm/i915: Remove walk over obj->vma_list for the shrinker 2017-10-16 20:44:19 +01:00
intel_ringbuffer.h drm/i915: Filter out spurious execlists context-switch interrupts 2017-11-09 16:18:11 +02:00
intel_runtime_pm.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_sdvo_regs.h
intel_sdvo.c drm/i915: Make i2c lock ops static 2017-09-01 10:30:40 -07:00
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-2017-10-12' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2017-10-20 10:56:10 +10:00
intel_tv.c drm/i915: Use mul_u32_u32() for 32b x 32b -> 64b result 2017-09-13 13:27:20 +01:00
intel_uc_fw.c drm/i915/uc: Add pretty printer for uc firmware 2017-10-17 16:42:56 +01:00
intel_uc_fw.h drm/i915/uc: Add pretty printer for uc firmware 2017-10-17 16:42:56 +01:00
intel_uc.c drm/i915/guc: Update Guc messages on load failure 2017-10-16 18:53:30 +03:00
intel_uc.h drm/i915/guc: Move GuC core definitions into dedicated files 2017-10-06 09:37:20 +03:00
intel_uncore.c drm/i915: Always stop the rings before a missing GPU reset 2017-10-13 20:57:29 +01:00
intel_uncore.h drm/i915: Provide an assert for when we expect forcewake to be held 2017-10-09 17:07:29 +01:00
intel_vbt_defs.h drm/i915/cnl: Map VBT DDC Pin to BSpec DDC Pin. 2017-10-20 16:18:03 -07:00
Kconfig drm/i915/fence: Avoid del_timer_sync() from inside a timer 2017-09-19 13:06:21 +01:00
Kconfig.debug drm/i915: Add SW_SYNC to our recommend testing Kconfig 2017-08-12 10:30:42 +01:00
Makefile drm/i915/guc: Rename intel_guc_loader.c to intel_guc_fw.c 2017-10-16 18:53:25 +03:00