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linux-stable/drivers/gpu/drm/i915
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Changbin Du 969b0950a1 drm/i915: Add interface to reserve fence registers for vGPU 
In the past, vGPU alloc fence registers by walking through mm.fence_list
to find fence which pin_count = 0 and vma is empty. vGPU may not find
enough fence registers this way. Because a fence can be bind to vma even
though it is not in using. We have found such failure many times these
days.

An option to resolve this issue is that we can force-remove fence from
vma in this case.

This patch added two new api to the fence management code:
 - i915_reserve_fence() will try to find a free fence from fence_list
   and force-remove vma if need.
 - i915_unreserve_fence() reclaim a reserved fence after vGPU has
   finished.

With this change, the fence management is more clear to work with vGPU.
GVTg do not need remove fence from fence_list in private.

v3: (Chris)
  - Add struct_mutex lock assertion.
  - Only count for unpinned fence.

v2: (Chris)
  - Rename the new api for symmetry.
  - Add safeguard to ensure at least 1 fence remained for host display.

Signed-off-by: Changbin Du <changbin.du@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/1504512061-5892-1-git-send-email-changbin.du@intel.com
Acked-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-09-04 16:34:59 +01:00
..
gvt drm/i915: Add interface to reserve fence registers for vGPU 2017-09-04 16:34:59 +01:00
selftests drm/i915: Replace execbuf vma ht with an idr 2017-08-18 11:59:02 +01:00
dvo.h
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
i915_cmd_parser.c drm/i915: Recreate vmapping even when the object is pinned 2017-08-29 10:39:08 +01:00
i915_debugfs.c drm/i915: Replace execbuf vma ht with an idr 2017-08-18 11:59:02 +01:00
i915_drv.c drm/i915/cfl: Coffee Lake works on Kaby Lake PCH. 2017-08-22 11:24:13 -07:00
i915_drv.h drm/i915: Add interface to reserve fence registers for vGPU 2017-09-04 16:34:59 +01:00
i915_gem.c drm/i915: Always wake the device to flush the GTT 2017-08-30 09:10:35 +01:00
i915_gem.h
i915_gem_batch_pool.c
i915_gem_batch_pool.h
i915_gem_clflush.c drm/i915: Split obj->cache_coherent to track r/w 2017-08-15 15:46:57 +01:00
i915_gem_clflush.h drm/i915: Force CPU synchronisation even if userspace requests ASYNC 2017-07-27 09:39:00 +02:00
i915_gem_context.c drm/i915: Replace execbuf vma ht with an idr 2017-08-18 11:59:02 +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
i915_gem_evict.c drm/i915: Convert execbuf to use struct-of-array packing for critical fields 2017-08-18 11:57:36 +01:00
i915_gem_execbuffer.c drm/i915: Don't use GPU relocations prior to cmdparser stalls 2017-08-29 10:41:33 +01:00
i915_gem_fence_reg.c drm/i915: Add interface to reserve fence registers for vGPU 2017-09-04 16:34:59 +01:00
i915_gem_fence_reg.h
i915_gem_gtt.c drm/i915: Fix the missing PPAT cache attributes on CNL 2017-09-01 17:05:37 -07:00
i915_gem_gtt.h drm/i915: pass the vma to insert_entries 2017-06-22 16:48:50 +01:00
i915_gem_internal.c drm/i915: Split obj->cache_coherent to track r/w 2017-08-15 15:46:57 +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: Replace execbuf vma ht with an idr 2017-08-18 11:59:02 +01:00
i915_gem_render_state.c drm/i915: Perform an invalidate prior to executing golden renderstate 2017-08-08 14:53:50 +01:00
i915_gem_render_state.h
i915_gem_request.c drm/i915: Mark the GT as busy before idling the previous request 2017-08-18 12:01:41 +01:00
i915_gem_request.h Merge tag 'drm-intel-next-2017-07-17' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2017-07-20 11:31:43 +10:00
i915_gem_shrinker.c drm/i915/shrinker: Wrap need_resched() inside preempt-disable 2017-08-04 13:11:39 +01:00
i915_gem_stolen.c drm/i915: Split obj->cache_coherent to track r/w 2017-08-15 15:46:57 +01:00
i915_gem_tiling.c
i915_gem_timeline.c
i915_gem_timeline.h
i915_gem_userptr.c drm/i915: Split obj->cache_coherent to track r/w 2017-08-15 15:46:57 +01:00
i915_gpu_error.c drm/i915: Make i915_gem_context_mark_guilty() safe for unlocked updates 2017-07-27 09:38:47 +02:00
i915_guc_reg.h
i915_guc_submission.c drm/i915: Differentiate between sw write location into ring and last hw read 2017-06-19 10:52:34 +03:00
i915_ioc32.c
i915_irq.c drm/i915: Make some RPS functions static 2017-08-24 12:36:18 -07:00
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_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/opregion: let user specify override VBT via firmware load 2017-08-17 16:34:54 +03:00
i915_params.h drm/i915/opregion: let user specify override VBT via firmware load 2017-08-17 16:34:54 +03:00
i915_pci.c drm/i915: mark all device info struct with __initconst 2017-09-01 14:28:28 +01:00
i915_perf.c drm/i915/perf: Drop redundant check for perf.initialised on reset 2017-08-10 21:43:11 +01:00
i915_pvinfo.h drm/i915: Enable guest i915 full ppgtt functionality 2017-08-15 10:12:48 +08:00
i915_reg.h drm/i915/cnl: WaDisableI2mCycleOnWRPort 2017-08-30 21:57:10 -07:00
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
i915_sw_fence.c main drm pull for v4.13 2017-07-09 18:48:37 -07:00
i915_sw_fence.h main drm pull for v4.13 2017-07-09 18:48:37 -07:00
i915_syncmap.c
i915_syncmap.h
i915_sysfs.c drm/i915: add const to bin_attribute 2017-08-03 12:20:09 +02:00
i915_trace.h drm/i915: Use correct path to trace include 2017-09-04 09:45:44 +02:00
i915_trace_points.c
i915_utils.h drm/i915: Store a direct lookup from object handle to vma 2017-06-16 16:54:04 +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 guest i915 full ppgtt functionality 2017-08-15 10:12:48 +08:00
i915_vma.c drm/i915: Replace execbuf vma ht with an idr 2017-08-18 11:59:02 +01:00
i915_vma.h drm/i915: Ignore duplicate VMA stored within the per-object handle LUT 2017-08-24 15:28:05 +01:00
intel_acpi.c
intel_atomic.c
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_audio.c
intel_bios.c drm/i915/bios: amend edp block based on intel_vbt_decode 2017-08-28 11:04:24 +03:00
intel_bios.h
intel_breadcrumbs.c
intel_cdclk.c drm/i915: Consolidate max_cdclk_freq check in intel_crtc_compute_min_cdclk() 2017-08-31 21:17:16 +03:00
intel_color.c drm/i915: Make i9xx_load_ycbcr_conversion_matrix() static 2017-09-01 19:46:08 +03:00
intel_crt.c drm/i915: Constify states passed to enable/disable/etc. encoder hooks 2017-08-22 17:59:02 +03:00
intel_csr.c
intel_ddi.c drm/i915/cnl: Fix DP max voltage 2017-08-31 09:31:58 -07:00
intel_device_info.c drm/i915: Use HAS_PCH_CPT() everywhere 2017-06-22 19:08:34 +03:00
intel_display.c drm/i915: Eliminate crtc->state usage from intel_atomic_commit_tail and .crtc_update() 2017-09-01 16:52:22 +03:00
intel_dp.c drm/i915/edp: Increase T12 panel delay to 900 ms to fix DP AUX CH timeouts 2017-08-31 21:33:15 +03:00
intel_dp_aux_backlight.c Revert "drm/i915: Add heuristic to determine better way to adjust brightness" 2017-07-21 09:32:48 +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: Constify states passed to enable/disable/etc. encoder hooks 2017-08-22 17:59:02 +03:00
intel_dpio_phy.c
intel_dpll_mgr.c drm/i915/cnl: Dump the right pll registers when dumping pipe config. 2017-08-11 11:41:45 -07:00
intel_dpll_mgr.h
intel_drv.h drm/i915: Pass proper old/new states to intel_plane_atomic_check_with_state() 2017-09-01 16:48:24 +03:00
intel_dsi.c drm/i915: Constify states passed to enable/disable/etc. encoder hooks 2017-08-22 17:59:02 +03:00
intel_dsi.h
intel_dsi_dcs_backlight.c drm/i915: Initialize 'data' in intel_dsi_dcs_backlight.c 2017-08-15 10:48:21 +03:00
intel_dsi_pll.c
intel_dsi_vbt.c drm/i915/bxt: use NULL for GPIO connection ID 2017-08-18 15:57:51 +03:00
intel_dvo.c drm/i915: Constify states passed to enable/disable/etc. encoder hooks 2017-08-22 17:59:02 +03:00
intel_engine_cs.c drm/i915/cnl: WaDisableI2mCycleOnWRPort 2017-08-30 21:57:10 -07:00
intel_fbc.c drm/i915: Quietly cancel FBC activation if CRTC is turned off before worker 2017-08-26 12:39:41 +01:00
intel_fbdev.c Merge airlied/drm-next into drm-intel-next-queued 2017-08-10 18:12:01 +02:00
intel_fifo_underrun.c drm/i915: Fix enum pipe vs. enum transcoder for the PCH transcoder 2017-09-01 19:46:56 +03:00
intel_frontbuffer.c
intel_frontbuffer.h
intel_guc_ct.c
intel_guc_ct.h
intel_guc_fwif.h
intel_guc_loader.c
intel_guc_log.c
intel_gvt.c
intel_gvt.h
intel_hangcheck.c drm/i915: Check execlist/ring status during hangcheck 2017-07-27 09:38:45 +02:00
intel_hdmi.c drm/i915: Constify states passed to enable/disable/etc. encoder hooks 2017-08-22 17:59:02 +03:00
intel_hotplug.c drm/i915: Introduce intel_hpd_pin function. 2017-08-11 11:53:47 -07:00
intel_huc.c
intel_i2c.c drm/i915: Make i2c lock ops static 2017-09-01 19:46:33 +03:00
intel_lpe_audio.c
intel_lrc.c drm/i915/cnl: Introduce initial Cannonlake Workarounds. 2017-08-18 15:32:17 -07:00
intel_lrc.h drm/i915: remove unused function declaration 2017-08-07 18:29:26 +01:00
intel_lspcon.c drm/i915/cnl: Fix LSPCON support. 2017-08-16 07:42:00 -07:00
intel_lvds.c drm/i915: Constify states passed to enable/disable/etc. encoder hooks 2017-08-22 17:59:02 +03:00
intel_mocs.c
intel_mocs.h
intel_modes.c
intel_opregion.c drm/i915/opregion: let user specify override VBT via firmware load 2017-08-17 16:34:54 +03:00
intel_overlay.c drm/i915: More surgically unbreak the modeset vs reset deadlock 2017-08-14 17:03:36 +02:00
intel_panel.c drm/i915/edp: Allow alternate fixed mode for eDP if available. 2017-08-15 16:43:33 -07:00
intel_pipe_crc.c drm/i915: Beef up of Beef up the IPS vs. CRC workaround 2017-08-28 16:12:47 +03:00
intel_pm.c drm/i915: Eliminate obj->state usage in g4x/vlv/chv wm computation 2017-08-31 21:27:58 +03:00
intel_psr.c drm/i915: Plumb crtc_state to PSR enable/disable 2017-08-22 17:57:46 +03:00
intel_renderstate.h
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_ringbuffer.c drm/i915: Enforce that CS packets are qword aligned 2017-07-27 09:38:57 +02:00
intel_ringbuffer.h drm/i915: Don't use MI_STORE_DWORD_IMM on Sandybridge/vcs 2017-08-18 11:55:02 +01:00
intel_runtime_pm.c drm/i915/cnl: extract cnl_set_procmon_ref_values 2017-08-22 09:22:45 -07:00
intel_sdvo.c drm/i915: Make i2c lock ops static 2017-09-01 19:46:33 +03:00
intel_sdvo_regs.h
intel_sideband.c
intel_sprite.c drm/i915: Pass the crtc state explicitly to intel_pipe_update_start/end() 2017-08-31 21:23:28 +03:00
intel_tv.c drm/i915: Constify states passed to enable/disable/etc. encoder hooks 2017-08-22 17:59:02 +03:00
intel_uc.c drm/i915/guc: Rename GuC irq trigger function 2017-08-12 18:56:47 +01:00
intel_uc.h
intel_uncore.c drm/i915: Stop touching forcewake following a gen6+ engine reset 2017-08-18 10:05:59 +01:00
intel_uncore.h
intel_vbt_defs.h drm/i915/bios: amend edp block based on intel_vbt_decode 2017-08-28 11:04:24 +03:00
Kconfig drm/i915: select CRC32 2017-06-21 11:13:27 +02:00
Kconfig.debug drm/i915: Add SW_SYNC to our recommend testing Kconfig 2017-08-12 10:30:42 +01:00
Makefile drm/i915: Use correct path to trace include 2017-09-04 09:45:44 +02:00