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f6322eddaf
linux_dsm_epyc7002/drivers/gpu/drm/i915
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Chris Wilson f6322eddaf drm/i915/preemption: Allow preemption between submission ports 
Sometimes we need to boost the priority of an in-flight request, which
may lead to the situation where the second submission port then contains
a higher priority context than the first and so we need to inject a
preemption event. To do so we must always check inside
execlists_dequeue() whether there is a priority inversion between the
ports themselves as well as the head of the priority sorted queue, and we
cannot just skip dequeuing if the queue is empty.

As Michał noted, this doesn't simply extend to handling more than 2-port
submission, as we may need to reorder within the array of executing
requests which themselves are lower priority than the first. A task for
later!

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180222142229.14517-1-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
2018-02-23 16:37:40 +00:00
..
gvt drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
selftests drm/i915: Update missing parts after the rename to i915_request 2018-02-23 16:34:32 +00:00
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
dvo.h
i915_cmd_parser.c drm/i915/cmdparser: Do not check past the cmd length. 2018-02-05 20:49:24 +00:00
i915_debugfs.c drm/i915/icl: Show interrupt registers in debugfs 2018-02-22 11:33:40 +02:00
i915_drv.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_drv.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_batch_pool.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem_batch_pool.h
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: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
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 drm/i915: Split obj->cache_coherent to track r/w 2017-08-15 15:46:57 +01:00
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: move read_domains and write_domain into i915 2018-02-16 14:12:48 +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_gem.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_gem.h drm/i915: Print the condition causing GEM_BUG_ON 2017-11-16 15:35:47 +02:00
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: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +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: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +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: Keep GuC log disabled by default 2018-01-19 20:35:32 +00:00
i915_pci.c drm/i915/icl: Add the ICL PCI IDs 2018-02-22 11:33:20 +02:00
i915_perf.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_pmu.c drm/i915/pmu: Fix building without CONFIG_PM 2018-02-07 17:07:45 +00:00
i915_pmu.h drm/i915/pmu: Fix sleep under atomic in RC6 readout 2018-02-07 13:37:34 +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_reg.h drm/i915: Add enum aux_ch and clean up the aux init to use it 2018-02-23 17:23:30 +02:00
i915_request.c drm/i915: Update missing parts after the rename to i915_request 2018-02-23 16:34:32 +00:00
i915_request.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +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: Remove unsafe i915.enable_rc6 2017-12-01 15:20:02 +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_trace.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
i915_utils.h drm/i915: Move some utility functions to i915_util.h 2017-12-22 09:13:47 +00:00
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_plane.c drm/i915: Move the policy for placement of the GGTT vma into the caller 2018-02-20 19:03:59 +00:00
intel_atomic.c drm/i915/atomic: Fixup kerneldoc 2018-02-14 14:56:31 +00:00
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: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +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: Fix Limited Range Color Handling 2018-02-22 17:38:30 +02:00
intel_crt.c drm/i915/crt: Remove obsolete kerneldoc-esque comment 2018-02-14 12:04:31 +00:00
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 INTEL_GEN everywhere 2018-02-09 22:29:02 +00:00
intel_device_info.c drm/i915/hsw: add missing disabled EUs registers reads 2018-02-22 13:58:01 +00:00
intel_device_info.h drm/i915: Move page sizes out of the 8-bit sandwich 2018-02-22 14:14:23 +00:00
intel_display.c drm/i915: Extract intel_plane_{pin,unpin}_fb() 2018-02-22 18:11:13 +02:00
intel_display.h drm/i915: Add enum aux_ch and clean up the aux init to use it 2018-02-23 17:23:30 +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/edp: Do not do link training fallback or prune modes on EDP 2018-01-22 17:58:10 +02:00
intel_dp_mst.c drm/i915: Nuke intel_digital_port->port 2017-11-09 20:06:14 +02:00
intel_dp.c drm/i915: Collect aux ch vfunc setup into intel_dp_aux_init() 2018-02-23 17:27:43 +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/cnl: Simplify dco_fraction calculation. 2017-11-16 09:45:39 -08:00
intel_dpll_mgr.h
intel_drv.h drm/i915: Nuke aux regs from intel_dp 2018-02-23 17:24:37 +02:00
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
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-intel-next-2017-12-01: 2017-12-08 08:41:22 +10:00
intel_dsi.h
intel_dvo.c drm/i915/dvo: Fixup commentary 2018-02-14 12:04:32 +00:00
intel_engine_cs.c drm/i915/preemption: Allow preemption between submission ports 2018-02-23 16:37:40 +00:00
intel_fbc.c drm/i915: Add a FIXME about FBC vs. fence. 90/270 degree rotation 2018-02-22 18:11:14 +02:00
intel_fbdev.c drm/i915: Only pin the fence for primary planes (and gen2/3) 2018-02-22 17:41:37 +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
intel_frontbuffer.h
intel_guc_ads.c drm/i915/guc : Decoupling ADS and logs from submission 2018-01-03 14:02:10 +00:00
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: Assert ctch->vma is allocated 2017-11-06 13:57:37 +00:00
intel_guc_ct.h
intel_guc_fw.c drm/i915/glk: Disable Guc and HuC on GLK 2018-01-04 14:45:07 -08:00
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: Add support for reset engine using GuC commands 2017-11-02 08:42:11 +00:00
intel_guc_log.c drm/i915/guc: Don't try to create log runtime if there is no log 2018-02-01 12:36:50 +00:00
intel_guc_log.h drm/i915/guc: Update name and prototype of i915_guc_log_control 2018-01-24 19:44:06 +00:00
intel_guc_reg.h drm/i915/guc: Use consistent name for scratch register count 2017-11-24 20:47:39 +00:00
intel_guc_submission.c drm/i915/preemption: Allow preemption between submission ports 2018-02-23 16:37:40 +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_guc.c drm/i915/guc: Fix lockdep due to log relay channel handling under struct_mutex 2018-01-24 19:44:04 +00:00
intel_guc.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 some newlines to intel_engine_dump() headers 2018-02-05 10:59:59 +00:00
intel_hdmi.c drm/i915/cnl: Add HPD support for Port F. 2018-01-30 10:24:20 -08:00
intel_hotplug.c drm/i915/cnl: Add HPD support for Port F. 2018-01-30 10:24:20 -08:00
intel_huc.c drm/i915: Add missing kerneldoc parameters for huc_ucode_xfer 2018-02-14 13:09:47 +00:00
intel_huc.h drm/i915/huc: Load HuC only if requested 2017-12-06 14:41:54 +00:00
intel_i2c.c drm/i915/icp: add ICP gmbus and gpio support 2018-01-19 18:02:52 -02:00
intel_lpe_audio.c drm/i915: Avoid leaking lpe audio platdev.data 2018-02-08 17:28:53 +00:00
intel_lrc_reg.h drm/i915: Move LRC register offsets to a header file 2018-01-24 09:22:55 +00:00
intel_lrc.c drm/i915/preemption: Allow preemption between submission ports 2018-02-23 16:37:40 +00:00
intel_lrc.h drm/i915/execlists: Inhibit context save/restore for the fake preempt context 2018-01-24 09:40:15 +00:00
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: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
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: Make ips_enabled a property depending on whether IPS is enabled, v3. 2017-11-30 16:49:42 +01:00
intel_pm.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
intel_psr.c drm/i915: Use INTEL_GEN everywhere 2018-02-09 22:29:02 +00:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
intel_ringbuffer.h drm/i915/preemption: Allow preemption between submission ports 2018-02-23 16:37:40 +00:00
intel_runtime_pm.c drm/i915: Remove WARN_ONCE for failing to pm_runtime_if_in_use 2018-02-19 15:06:23 +00:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915/sdvo: Tidy up commentary 2018-02-14 12:02:43 +00:00
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 drm/i915: Give all ioctl functions an _ioctl suffix 2018-02-09 18:03:36 +02:00
intel_tv.c drm/i915/tv: Cleanup up obsolete comments 2018-02-14 12:02:39 +00:00
intel_uc_fw.c drm/i915: Fixup kerneldoc for intel_uc_fw_upload() 2018-02-14 13:28:41 +00:00
intel_uc_fw.h drm/i915/guc: Move firmware selection to init_early 2017-12-06 14:41:47 +00:00
intel_uc.c drm/i915/guc: Don't forget to free GuC error log 2018-02-01 12:33:57 +00:00
intel_uc.h drm/i915/guc: Fix lockdep due to log relay channel handling under struct_mutex 2018-01-24 19:44:04 +00:00
intel_uncore.c drm/i915: Use INTEL_GEN everywhere 2018-02-09 22:29:02 +00:00
intel_uncore.h drm/i915: Prune gen8_gt_irq_handler 2018-02-19 15:38:59 +00:00
intel_vbt_defs.h drm/i915/dp: limit DP link rate based on VBT on CNL+ 2018-02-02 09:50:51 +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: Avoid context dereference inside execlists_submission_tasklet 2017-12-19 23:04:45 +00:00
Makefile drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00