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db93991bf5
linux/drivers/gpu/drm/i915
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Chris Wilson db93991bf5 drm/i915: Only attempt to signal the request once from the interrupt handler 
Check that request has not been signaled before acquiring a reference to
the request for signaling later in the interrupt handler.

The loading of the cacheline (for request->fence.flags) should be "free"
when followed by the locked increment of the request->fence.refcount
(which then sets the cacheline to exclusive mode), i.e. the cost of
test_bit prior to an atomic_inc should be negligible. This should
benefit us when we have a pile of bare breadcrumbs (interrupted execbuf)
where we may get interrupts faster than we can get rid of the
intel_wait, or if the device is too slow to run the bottom-half between
interrupts.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170315210726.12095-5-chris@chris-wilson.co.uk
2017-03-15 21:45:41 +00:00
..
gvt Merge airlied/drm-next into drm-misc-next 2017-02-27 09:30:11 +01:00
selftests drm/i915/selftests: Catch error from mock_file() 2017-03-13 13:21:18 +00:00
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
dvo.h
i915_cmd_parser.c drm/i915/cmdparser: Limit clflush to active cachelines 2017-03-10 13:02:34 +00:00
i915_debugfs.c drm/i915: annote drop_caches debugfs interface with lockdep 2017-03-14 10:10:14 +01:00
i915_drv.c drm/i915/guc: Extract param logic form guc_init_fw() 2017-03-15 14:26:30 +02:00
i915_drv.h drm/i915/huc: Add huc_to_i915 2017-03-15 14:26:30 +02:00
i915_gem_batch_pool.c drm/i915: Use reservation_object_lock() 2017-02-21 12:48:51 +00:00
i915_gem_batch_pool.h
i915_gem_clflush.c drm/i915: Remove 'retire' parameter from intel_fb_obj_flush 2017-02-22 12:12:17 +00:00
i915_gem_clflush.h drm/i915: Perform object clflushing asynchronously 2017-02-22 12:12:15 +00:00
i915_gem_context.c drm/i915: Reduce context alignment 2017-02-27 16:01:47 +00:00
i915_gem_context.h drm/i915: Reduce context alignment 2017-02-27 16:01:47 +00:00
i915_gem_dmabuf.c Merge tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2017-03-08 12:41:47 +10:00
i915_gem_evict.c drm/i915: use correct node for handling cache domain eviction 2017-03-09 08:42:35 +00:00
i915_gem_execbuffer.c drm/i915: Drop spinlocks around adding to the client request list 2017-03-02 22:33:41 +00:00
i915_gem_fence_reg.c drm/i915: Take rpm wakelock for releasing the fence on unbind 2017-03-06 14:38:18 +00:00
i915_gem_fence_reg.h drm/i915: Replace 4096 with PAGE_SIZE or I915_GTT_PAGE_SIZE 2017-01-10 20:54:32 +00:00
i915_gem_gtt.c drm/i915/gtt: Setup vm callbacks late 2017-03-03 16:46:44 +02:00
i915_gem_gtt.h drm/i915: Avoid using word legacy with ppgtt 2017-03-03 16:46:23 +02:00
i915_gem_internal.c Linux 4.10-rc8 2017-02-23 12:10:12 +10:00
i915_gem_object.h drm/i915: Purge i915_gem_object_is_dead() 2017-03-08 20:42:18 +00:00
i915_gem_render_state.c scripts/spelling.txt: add "aligment" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
i915_gem_render_state.h
i915_gem_request.c Merge tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2017-03-08 12:41:47 +10:00
i915_gem_request.h drm/i915: Check for an invalid seqno before __i915_gem_request_started 2017-03-08 20:47:07 +00:00
i915_gem_shrinker.c drm/i915: Avoid rcu_barrier() from reclaim paths (shrinker) 2017-03-14 14:19:51 +00:00
i915_gem_stolen.c drm/i915/gvt: Disable access to stolen memory as a guest 2017-02-16 11:59:13 +02:00
i915_gem_tiling.c drm/i915: Prevent concurrent tiling/framebuffer modifications 2017-03-01 17:57:17 +00:00
i915_gem_timeline.c
i915_gem_timeline.h drm/i915: Keep a global seqno per-engine 2017-02-23 14:49:26 +00:00
i915_gem_userptr.c drm/i915/userptr: Disallow wrapping GTT into a userptr 2017-03-09 07:31:14 +00:00
i915_gem.c drm/i915/guc: Simplify intel_guc_init_hw() 2017-03-15 14:26:30 +02:00
i915_gem.h drm/i915: Rename conditional GEM execution macros 2017-02-10 21:43:43 +00:00
i915_gpu_error.c drm/i915: Split breadcrumbs spinlock into two 2017-03-03 20:19:13 +00:00
i915_guc_reg.h drm/i915/huc: Add HuC fw loading support 2017-01-19 11:18:55 +02:00
i915_guc_submission.c drm/i915/guc: Use formalized struct definition for ads object 2017-03-15 15:43:43 +00:00
i915_ioc32.c
i915_irq.c drm/i915: Only attempt to signal the request once from the interrupt handler 2017-03-15 21:45:41 +00:00
i915_memcpy.c
i915_mm.c
i915_oa_hsw.c
i915_oa_hsw.h
i915_params.c drm/i915/uc: Add params for specifying firmware 2017-03-15 14:26:30 +02:00
i915_params.h drm/i915/uc: Add params for specifying firmware 2017-03-15 14:26:30 +02:00
i915_pci.c drm/i915: Provide a hook for selftests 2017-02-13 20:45:21 +00:00
i915_perf.c drm/i915: s/assert_spin_locked/lockdep_assert_held/ 2017-03-02 15:18:55 +00:00
i915_pvinfo.h
i915_reg.h drm/i915: Rename REDIRECT_TO_GUC bit 2017-03-13 11:16:09 +00:00
i915_selftest.h drm/i915: Use fault-injection to force the shrinker to run in live GTT tests 2017-02-13 20:46:32 +00:00
i915_suspend.c
i915_sw_fence.c gpu: drm: drivers: Convert printk(KERN_<LEVEL> to pr_<level> 2017-03-01 09:44:11 +01:00
i915_sw_fence.h
i915_sysfs.c drm/i915: The return of i915_gpu_info to debugfs 2017-02-14 22:30:22 +00:00
i915_trace_points.c
i915_trace.h drm/i915: Add FIFO underrun tracepoints 2017-03-03 16:50:11 +02:00
i915_utils.h drm/i915/guc: Use formalized struct definition for ads object 2017-03-15 15:43:43 +00:00
i915_vgpu.c drm/i915: Remove i915_address_space.start 2017-02-15 10:07:32 +00:00
i915_vgpu.h
i915_vma.c drm/i915: Remove the vma from the drm_mm if binding fails 2017-02-27 13:10:12 +00:00
i915_vma.h drm/i915: Exercise i915_vma_pin/i915_vma_insert 2017-02-13 20:46:41 +00:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Add plane update/disable tracepoints 2017-03-03 16:50:10 +02:00
intel_atomic.c drm/i915: Skip useless watermark/FIFO related work on VLV/CHV when not needed 2017-03-03 16:50:10 +02:00
intel_audio.c Merge tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2017-03-08 12:41:47 +10:00
intel_bios.c drm/i915/vbt: split out defaults that are set when there is no VBT 2017-03-14 10:49:13 +02:00
intel_bios.h
intel_breadcrumbs.c drm/i915/breadcrumbs: Assert that we do not shortcut the current bottom-half 2017-03-15 21:45:40 +00:00
intel_cdclk.c drm/i915: Use new atomic iterator macros in cdclk 2017-03-13 12:06:40 +01:00
intel_color.c drm/i915/glk: Improve rounding caused by pre-CSC gamma tables 2017-03-14 16:07:00 +02:00
intel_crt.c drm/i915: Store encoder power domain in struct intel_encoder 2017-02-27 09:07:51 +02:00
intel_csr.c drm/i915/: DMC 1.04 for Geminilake 2017-03-07 09:55:46 +02:00
intel_ddi.c drm/i915: Use new atomic iterator macros in ddi 2017-03-13 12:06:40 +01:00
intel_device_info.c drm/i915: use BUILD_BUG_ON to ensure platform name has been set up 2017-03-01 13:11:24 +02:00
intel_display.c drm/i915: Use I915_READ_FW for plane updates 2017-03-13 21:15:06 +02:00
intel_dp_aux_backlight.c
intel_dp_link_training.c Revert "drm/i915: Implement Link Rate fallback on Link training failure" 2017-03-02 09:17:16 +01:00
intel_dp_mst.c drm/i915: Remove duplicate DDI enabling logic from MST path 2017-03-03 12:32:37 +02:00
intel_dp.c Revert "drm/i915: Implement Link Rate fallback on Link training failure" 2017-03-02 09:17:16 +01:00
intel_dpio_phy.c
intel_dpll_mgr.c Linux 4.10-rc8 2017-02-23 12:10:12 +10:00
intel_dpll_mgr.h drm/i915: Remove unused function intel_ddi_get_link_dpll() 2017-02-10 11:40:27 +02:00
intel_drv.h drm/i915: Inline gen6_sanitize_rps_pm_mask() 2017-03-13 14:24:58 +00:00
intel_dsi_dcs_backlight.c
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/dsi: rename intel_dsi_panel_vbt.c to intel_dsi_vbt.c 2017-03-07 15:18:24 +02:00
intel_dsi.c drm/i915/dsi: rename intel_dsi_pre_disable to intel_dsi_disable 2017-03-07 15:18:13 +02:00
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: Store encoder power domain in struct intel_encoder 2017-02-27 09:07:51 +02:00
intel_engine_cs.c drm/i915: Don't use enums for hardware engine id 2017-03-03 22:54:21 +00:00
intel_fbc.c drm/i915: Use new atomic iterator macros in fbc 2017-03-13 12:06:40 +01:00
intel_fbdev.c drm/i915: Plumb drm_framebuffer into more places 2017-03-08 16:35:56 +02:00
intel_fifo_underrun.c drm/i915: Add FIFO underrun tracepoints 2017-03-03 16:50:11 +02:00
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_fwif.h drm/i915/huc: Support HuC authentication 2017-01-19 11:19:07 +02:00
intel_guc_loader.c drm/i915/uc: Add params for specifying firmware 2017-03-15 14:26:30 +02:00
intel_guc_log.c drm/i915/guc: Move GuC log related functions into dedicated file 2017-01-18 07:29:04 +00:00
intel_gvt.c drm/i915: make intel_gvt_init() later instead of too early 2017-02-07 17:21:06 +08:00
intel_gvt.h
intel_hangcheck.c drm/i915: Add initial selftests for hang detection and resets 2017-02-13 20:46:53 +00:00
intel_hdmi.c drm/i915: Reject HDMI 12bpc if the sink doesn't indicate support 2017-03-13 18:01:55 +02:00
intel_hotplug.c drm/i915: use drm_connector_list_iter in intel_hotplug.c 2017-03-08 23:42:40 +01:00
intel_huc.c drm/i915/uc: Add params for specifying firmware 2017-03-15 14:26:30 +02:00
intel_i2c.c drm/i915: Introduce IS_GEN9_BC for Skylake and Kabylake. 2017-01-24 10:29:00 -08:00
intel_lpe_audio.c drm/i915: Enable VLV audio chicken bit for LPE audio 2017-02-03 16:19:08 +01:00
intel_lrc.c drm/i915: Avoid using word legacy with ppgtt 2017-03-03 16:46:23 +02:00
intel_lrc.h drm/i915: Generalise wait for execlists to be idle 2017-03-03 13:08:15 +00:00
intel_lspcon.c drm/i915/lspcon: Fix resume time initialization due to unasserted HPD 2017-02-16 11:59:10 +02:00
intel_lvds.c drm/i915: Store encoder power domain in struct intel_encoder 2017-02-27 09:07:51 +02:00
intel_mocs.c drm/i915: Emit to ringbuffer directly 2017-02-14 14:30:46 +00:00
intel_mocs.h
intel_modes.c
intel_opregion.c Revert "drm/i915: Ignore panel type from OpRegion on SKL" 2017-03-14 12:21:51 +02:00
intel_overlay.c drm/i915: Emit to ringbuffer directly 2017-02-14 14:30:46 +00:00
intel_panel.c drm/i915: Start moving the cdclk stuff into a distinct state structure 2017-02-08 18:07:10 +02:00
intel_pipe_crc.c Merge tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2017-03-08 12:41:47 +10:00
intel_pm.c drm/i915: Optimize VLV/CHV display FIFO updates 2017-03-13 21:15:10 +02:00
intel_psr.c drm/i915/psr: Fix compiler warnings for hsw_psr_disable() 2017-01-18 10:25:01 +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: Reduce context alignment 2017-02-27 16:01:47 +00:00
intel_ringbuffer.h drm/i915: Don't use enums for hardware engine id 2017-03-03 22:54:21 +00:00
intel_runtime_pm.c drm/i915: Only enable DDI IO power domains after enabling DPLL 2017-02-27 09:09:14 +02:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Store encoder power domain in struct intel_encoder 2017-02-27 09:07:51 +02:00
intel_sideband.c drm/i915: Distinguish between timeout and error in sideband transactions 2017-02-27 17:22:19 +00:00
intel_sprite.c drm/i915: Use I915_READ_FW for plane updates 2017-03-13 21:15:06 +02:00
intel_tv.c drm/i915: Store encoder power domain in struct intel_encoder 2017-02-27 09:07:51 +02:00
intel_uc.c drm/i915/uc: Add params for specifying firmware 2017-03-15 14:26:30 +02:00
intel_uc.h drm/i915/uc: Separate firmware selection and preparation 2017-03-15 14:26:30 +02:00
intel_uncore.c Merge tag 'topic/designware-baytrail-2017-03-02' of git://anongit.freedesktop.org/git/drm-intel into drm-intel-next-queued 2017-03-13 09:26:06 +01:00
intel_vbt_defs.h
Kconfig Merge tag 'topic/designware-baytrail-2017-03-02' of git://anongit.freedesktop.org/git/drm-intel into drm-intel-next-queued 2017-03-13 09:26:06 +01:00
Kconfig.debug drm/i915/tracepoints: Add request submit and execute tracepoints 2017-02-21 13:18:14 +00:00
Makefile Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued 2017-03-08 10:54:45 +01:00