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b2c0593a0c
linux/drivers/gpu/drm/i915
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Ville Syrjälä b2c0593a0c drm/i915: Try to shut up more ILK underruns 
Take a bigger hammer to the underrun suppression on ILK. Instead of
trying to suppress them at specific points in the modeset sequence just
silence them across the entire sequence. This gets rid of some underruns
at least on my ILK. Note that this changes SNB and IVB to follow the
same approach just to keep the code less convoluted. The difference is
that on those platforms we won't suppress CPU underruns for port A since
it doesn't seem to be necessary.

My ILK has port A eDP and two PCH HDMI ports, so I can't be sure this is
as effective on other PCH port types. Perhaps we still need some of
Daniel's extra vblank waits [2]?

I've still been able to trigger an underrun on the other pipe, but
fixing that perhaps needs the LP1+ disable trick I implemented here [1]
which never got merged.

A few details which hamper stress testing on my ILK are that sometimes
the PCH transcoder gets messed up and refuses to shut down, and sometimes
even the panel power sequencer apparently gets stuck on the always on
position.

[1] https://lists.freedesktop.org/archives/intel-gfx/2014-March/041317.html
[2] https://lists.freedesktop.org/archives/intel-gfx/2016-January/086397.html

v2: Add a note that we also get underruns when enabling PCH ports

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/1459536799-18109-2-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
2016-04-12 19:01:35 +03:00
..
dvo_ch7xxx.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_ch7017.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_ivch.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_ns2501.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_sil164.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo_tfp410.c drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
dvo.h drm/i915: constify intel_dvo_dev_ops structures 2015-12-09 08:21:10 +01:00
i915_cmd_parser.c drm/i915: Bump command parser version for new whitelisted registers 2016-03-21 10:03:26 +01:00
i915_debugfs.c drm/i915: Simplify for_each_fw_domain iterators 2016-04-12 14:30:41 +01:00
i915_dma.c Revert "drm/i915: Fix races on fbdev" 2016-04-01 15:03:55 +03:00
i915_drv.c drm/i915: Do not use {HAS_*, IS_*, INTEL_INFO}(dev_priv->dev) 2016-04-07 14:50:26 +03:00
i915_drv.h drm/i915: Only grab correct forcewake for the engine with execlists 2016-04-12 15:35:22 +01:00
i915_gem_batch_pool.c
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: replace for_each_engine() 2016-03-24 14:34:11 +00:00
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_evict.c drm/i915: Rename vma->*_list to *_link for consistency 2016-02-26 13:15:39 +00:00
i915_gem_execbuffer.c drm,i915: Introduce drm_malloc_gfp() 2016-04-11 17:13:10 +01:00
i915_gem_fence.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2016-03-17 21:38:27 -07:00
i915_gem_gtt.c drm,i915: Introduce drm_malloc_gfp() 2016-04-11 17:13:10 +01:00
i915_gem_gtt.h drm/i915: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
i915_gem_render_state.c drm/i915: Rename intel_engine_cs struct members 2016-03-16 15:33:17 +00:00
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/shrinker: Restrict vmap purge to objects with vmaps 2016-04-11 17:12:16 +01:00
i915_gem_stolen.c drm/i915: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
i915_gem_tiling.c
i915_gem_userptr.c drm/i915/userptr: Store i915 backpointer for i915_mm_struct 2016-04-11 20:39:16 +01:00
i915_gem.c Linux 4.6-rc3 2016-04-11 19:25:13 +02:00
i915_gpu_error.c drm/i915: Separate out the seqno-barrier from engine->get_seqno 2016-04-09 12:09:05 +01:00
i915_guc_reg.h drm/i915/guc: always reset GuC before loading firmware 2016-04-05 13:29:24 +01:00
i915_guc_submission.c drm/i915: replace for_each_engine() 2016-03-24 14:34:11 +00:00
i915_ioc32.c
i915_irq.c drm/i915: Harden detection of missed interrupts 2016-04-09 12:09:29 +01:00
i915_params.c drm/i915: Add fault injection support 2016-03-17 15:22:09 +02:00
i915_params.h drm/i915: Add fault injection support 2016-03-17 15:22:09 +02:00
i915_reg.h drm/i915: implement WaClearTdlStateAckDirtyBits 2016-04-11 11:59:43 +01:00
i915_suspend.c drm/i915/bxt: Don't save/restore eDP panel power during suspend (v3) 2016-02-08 11:32:32 +02:00
i915_sysfs.c drm/i915: Hold RPM reference while setting freq limits through sysfs 2016-03-02 18:50:47 +02:00
i915_trace_points.c
i915_trace.h drm/i915: Separate out the seqno-barrier from engine->get_seqno 2016-04-09 12:09:05 +01:00
i915_vgpu.c drm/i915: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
i915_vgpu.h drm/i915: Type safe register read/write 2015-11-18 15:39:11 +02:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Pass the correct crtc state to .update_plane() 2016-03-10 13:49:31 +02:00
intel_atomic.c drm/i915: Remove some post-commit members from intel_crtc->atomic, v3. 2016-03-16 14:50:25 +01:00
intel_audio.c drm/i915: Do not use {HAS_*, IS_*, INTEL_INFO}(dev_priv->dev) 2016-04-07 14:50:26 +03:00
intel_bios.c drm/i915: Get panel_type from OpRegion panel details 2016-04-12 13:23:43 +03:00
intel_bios.h drm/i915: hide away VBT private data in a separate header 2016-03-17 11:58:57 +02:00
intel_color.c drm/i915: Do not check crtc_state->active in intel_color_load_luts. 2016-03-31 12:46:07 +02:00
intel_crt.c drm/i915: Move HSW/BDW pll selection logic to intel_dpll_mgr.c 2016-03-09 11:55:31 +02:00
intel_csr.c drm/i915/csr: Allow matching unknown HW steppings with generic firmware 2016-03-16 17:53:00 +02:00
intel_ddi.c drm/i915/ddi: Silence compiler warning for unknown output type 2016-04-04 08:25:52 +01:00
intel_display.c drm/i915: Try to shut up more ILK underruns 2016-04-12 19:01:35 +03:00
intel_dp_link_training.c drm/i915/dp: reduce missing TPS3 support errors to debug logging 2016-02-08 11:37:17 +02:00
intel_dp_mst.c drm/i915: Fix race condition in intel_dp_destroy_mst_connector() 2016-03-17 09:12:28 +01:00
intel_dp.c drm/i915: Try to shut up more ILK underruns 2016-04-12 19:01:35 +03:00
intel_dpll_mgr.c drm/i915/bxt: Reversed polarity of PORT_PLL_REF_SEL bit 2016-04-11 13:02:23 +03:00
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: Use GPLL ref clock to calculate GPU freqs on VLV/CHV 2016-04-05 21:17:39 +03:00
intel_dsi_panel_vbt.c drm/i915: Sharing the pixel_format_from_vbt to whole i915 2016-04-07 16:46:06 +03:00
intel_dsi_pll.c drm/i915/bxt: Fix DSI HW state readout 2016-03-24 14:48:21 +02:00
intel_dsi.c drm/i915/BXT: Get pipe conf from the port registers 2016-04-07 16:46:09 +03:00
intel_dsi.h drm/i915: Sharing the pixel_format_from_vbt to whole i915 2016-04-07 16:46:06 +03:00
intel_dvo.c drm: Pass 'name' to drm_encoder_init() 2015-12-11 09:13:20 +01:00
intel_fbc.c drm/i915: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
intel_fbdev.c Revert "drm/i915: Fix races on fbdev" 2016-04-01 15:03:55 +03:00
intel_fifo_underrun.c drm/i915: Do not use {HAS_*, IS_*, INTEL_INFO}(dev_priv->dev) 2016-04-07 14:50:26 +03:00
intel_frontbuffer.c
intel_guc_fwif.h drm/i915/guc: Decouple GuC engine id from ring id 2016-01-25 10:56:30 +00:00
intel_guc_loader.c drm/i915/guc: always reset GuC before loading firmware 2016-04-05 13:29:24 +01:00
intel_guc.h drm/i915/guc: Decouple GuC engine id from ring id 2016-01-25 10:56:30 +00:00
intel_hdmi.c drm/i915: Do not use {HAS_*, IS_*, INTEL_INFO}(dev_priv->dev) 2016-04-07 14:50:26 +03:00
intel_hotplug.c drm/i915: intel_hpd_init(): Fix suspend/resume reprobing 2016-01-13 10:49:42 +02:00
intel_i2c.c drm/i915: Make GMBUS timeout message DRM_DEBUG_KMS 2016-04-12 13:23:17 +03:00
intel_lrc.c drm/i915: Only grab correct forcewake for the engine with execlists 2016-04-12 15:35:22 +01:00
intel_lrc.h drm/i915: Only grab correct forcewake for the engine with execlists 2016-04-12 15:35:22 +01:00
intel_lvds.c drm/i915: fix deadlock on lid open 2016-03-30 12:17:13 +02:00
intel_mocs.c drm/i915: introduce for_each_engine_id() 2016-03-24 14:34:06 +00:00
intel_mocs.h
intel_modes.c
intel_opregion.c drm/i915: Get panel_type from OpRegion panel details 2016-04-12 13:23:43 +03:00
intel_overlay.c drm/i915: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
intel_panel.c drm/i915/panel: setup pwm backlight based on connector type 2016-03-16 18:28:50 +02:00
intel_pm.c drm/i915: Do not use {HAS_*, IS_*, INTEL_INFO}(dev_priv->dev) 2016-04-07 14:50:26 +03:00
intel_psr.c drm/i915: Do not use {HAS_*, IS_*, INTEL_INFO}(dev_priv->dev) 2016-04-07 14:50:26 +03:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: Refactor duplicate object vmap functions 2016-04-11 17:11:44 +01:00
intel_ringbuffer.h drm/i915: Only grab correct forcewake for the engine with execlists 2016-04-12 15:35:22 +01:00
intel_runtime_pm.c drm/i915: Do not use {HAS_*, IS_*, INTEL_INFO}(dev_priv->dev) 2016-04-07 14:50:26 +03:00
intel_sdvo_regs.h drm/i915/sdvo: revert bogus kernel-doc comments to normal comments 2016-01-20 10:21:34 +02:00
intel_sdvo.c drm/i915: move sdvo mappings to vbt data 2016-03-29 15:12:30 +03:00
intel_sideband.c drm/i915: Extend gpio read/write to other cores 2016-02-04 19:11:17 +02:00
intel_sprite.c drm/i915: Fix plane init failure paths 2016-04-01 23:24:21 +03:00
intel_tv.c drm/i915: move VBT based TV presence check to intel_bios.c 2016-03-16 18:28:07 +02:00
intel_uncore.c drm/i915: Only grab correct forcewake for the engine with execlists 2016-04-12 15:35:22 +01:00
intel_vbt_defs.h drm/i915: Update VBT fields for child devices 2016-04-06 14:10:15 +03:00
Kconfig drm/i915: Kconfig for extra driver debugging 2016-03-03 17:26:57 +00:00
Kconfig.debug drm/i915: Kconfig for extra driver debugging 2016-03-03 17:26:57 +00:00
Makefile drm/i915: Extract out gamma table and CSC to their own file 2016-03-21 11:39:08 -07:00