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ab0e455bd0
linux/drivers/gpu/drm/i915
History
Dave Gordon ab0e455bd0 drm/i915: avoid wait_for_atomic() in non-atomic host2guc_action() 
Rather than using wait_for_atomic() when chacking for a response from
the GuC, we can get the effect of a hybrid spin/sleep wait by breaking
it into two stages. First, spin-wait for up to 10us to minimise latency
for "quick" commands; then, if that times out, sleep-wait for up 10ms
(the maximum allowed for a "slow" command).

Being able to do this depends on the recent patch
18f4b84 drm/i915: Use atomic waits for short non-atomic ones
and is similar to the hybrid approach in
1758b90 drm/i915: Use a hybrid scheme for fast register waits
(although we can't use that as-is, because that interface doesn't quite
match what we need here).

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1467815411-21756-1-git-send-email-david.s.gordon@intel.com
2016-07-06 16:24:46 +01:00
..
gvt drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
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: Fix a buch of kerneldoc warnings 2016-06-06 13:04:26 +01:00
i915_debugfs.c drm/i915: Group the irq breadcrumb variables into the same cacheline 2016-07-06 12:47:39 +01:00
i915_drv.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_drv.h drm/i915: Group the irq breadcrumb variables into the same cacheline 2016-07-06 12:47:39 +01:00
i915_gem_batch_pool.c drm/i915: Propagate error from drm_gem_object_init() 2016-04-28 12:28:58 +03:00
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_gem_debug.c drm/i915: replace for_each_engine() 2016-03-24 14:34:11 +00:00
i915_gem_dmabuf.c Linux 4.6-rc3 2016-04-11 19:25:13 +02:00
i915_gem_dmabuf.h drm/i915: Serialise presentation with imported dmabufs 2016-06-17 10:32:26 +01:00
i915_gem_evict.c drm/i915: Only switch to default context when evicting from GGTT 2016-06-24 15:03:32 +01:00
i915_gem_execbuffer.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_gem_fence.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
i915_gem_gtt.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_gem_gtt.h drm/i915: tweak gen6_for_{each_pde, all_pdes} macros 2016-06-27 13:13:53 +01:00
i915_gem_render_state.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_gem_render_state.h drm/i915: Rename intel_engine_cs function parameters 2016-03-16 15:33:10 +00:00
i915_gem_shrinker.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_gem_stolen.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
i915_gem_tiling.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
i915_gem_userptr.c drm/i915: Introduce & use new lightweight SGL iterators 2016-05-20 13:43:00 +01:00
i915_gem.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_gem.h drm/i915: Add GEM debugging Kconfig option 2016-04-14 10:45:40 +01:00
i915_gpu_error.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_guc_reg.h drm/i915/bxt: reserve space for RC6 in the the GuC WOPCM 2016-05-18 12:49:19 +01:00
i915_guc_submission.c drm/i915: avoid wait_for_atomic() in non-atomic host2guc_action() 2016-07-06 16:24:46 +01:00
i915_ioc32.c
i915_irq.c drm/i915: Group the irq breadcrumb variables into the same cacheline 2016-07-06 12:47:39 +01:00
i915_params.c drm/i915: Set the access right of kernel param "i915.enable_gvt" to read-only. 2016-06-21 11:45:27 +01:00
i915_params.h drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
i915_pci.c drm/i915/bxt: Remove the preliminary_hw_support flag 2016-07-01 21:25:54 +03:00
i915_pvinfo.h drm/i915: Use offsetof() to calculate the offset of members in PVINFO page 2016-06-17 19:44:25 +01:00
i915_reg.h drm/i915/bxt: Fix sanity check for BIOS RC6 setup 2016-07-01 14:57:20 +03:00
i915_suspend.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
i915_sysfs.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
i915_trace_points.c
i915_trace.h drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
i915_vgpu.c drm/i915: Fold vGPU active check into inner functions 2016-06-17 19:44:29 +01:00
i915_vgpu.h drm/i915: Fold vGPU active check into inner functions 2016-06-17 19:44:29 +01:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Revert async unpin and nonblocking atomic commit 2016-06-01 09:46:46 +02:00
intel_atomic.c drm: Consolidate plane arrays in drm_atomic_state 2016-06-02 17:20:25 +02:00
intel_audio.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_bios.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_bios.h drm/i915: Parse LFP brightness control field in VBT 2016-05-02 16:17:38 +03:00
intel_breadcrumbs.c drm/i915: Group the irq breadcrumb variables into the same cacheline 2016-07-06 12:47:39 +01:00
intel_color.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_crt.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_csr.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_ddi.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_device_info.c drm/i915: Split out runtime configuration of device info to its own file 2016-07-05 11:53:27 +01:00
intel_display.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_dp_aux_backlight.c drm/i915: Add Backlight Control using DPCD for eDP connectors (v9) 2016-04-26 15:17:54 +03:00
intel_dp_link_training.c drm/i915: Revert DisplayPort fast link training feature 2016-06-20 12:37:07 +03:00
intel_dp_mst.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dp.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_dpio_phy.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dpll_mgr.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_dpll_mgr.h drm/i915: Use a crtc mask instead of a refcount for dpll functions, v2. 2016-03-17 09:27:28 +01:00
intel_drv.h drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi_dcs_backlight.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi_panel_vbt.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi_pll.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi.h drm/i915/dsi: CABC support for Panel PWM backlight control 2016-05-17 16:12:39 +03:00
intel_dvo.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_fbc.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_fbdev.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_fifo_underrun.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_frontbuffer.c
intel_guc_fwif.h drm/i915/guc: rework guc_add_workqueue_item() 2016-05-23 14:21:53 +01:00
intel_guc_loader.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_guc.h drm/i915/guc: index host arrays by i915 engine ID, not guc_id 2016-06-21 11:24:25 +01:00
intel_gvt.c drm/i915/gvt: Mark i915.enable_gvt as false if loading fails 2016-06-21 12:40:13 +01:00
intel_gvt.h drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
intel_hdmi.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_hotplug.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_i2c.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_lrc.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_lrc.h drm/i915: Introduce execlist context status change notification 2016-06-17 20:36:19 +01:00
intel_lvds.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_mocs.c drm/i915/mocs: || vs | typo in get_mocs_settings() 2016-06-13 17:38:01 +03:00
intel_mocs.h drm/i915/mocs: Program MOCS for all engines on init 2016-04-14 10:45:40 +01:00
intel_modes.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_opregion.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_overlay.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_panel.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_pm.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_psr.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_ringbuffer.h drm/i915: Group the irq breadcrumb variables into the same cacheline 2016-07-06 12:47:39 +01:00
intel_runtime_pm.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_sideband.c drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register() 2016-06-30 15:42:33 +01:00
intel_sprite.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_tv.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_uncore.c drm/i915: Convert dev_priv->dev backpointers to dev_priv->drm 2016-07-05 11:58:45 +01:00
intel_vbt_defs.h drm/i915: Extract physical display dimensions from VBT 2016-06-02 14:33:09 +03:00
Kconfig drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
Kconfig.debug drm/i915/debug: Select PREEMPT_COUNT when enabling debugging 2016-06-29 15:53:14 +01:00
Makefile drm/i915: Split out runtime configuration of device info to its own file 2016-07-05 11:53:27 +01:00