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d761701c55
linux/drivers/gpu/drm/i915
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Dave Gordon d761701c55 drm/i915/guc: always reset GuC before loading firmware 
After a suspend-resume cycle, the resumed kernel has no idea what the
booted kernel may have done to the GuC before replacing itself with the
resumed image. In particular, it may have already loaded the GuC with
firmware, which will then cause this kernel's attempt to (re)load the
firmware to fail (GuC program memory is write-once!). The symptoms
(GuC firmware reload fails after hibernation) are further described
in the Bugzilla reference below.

So let's *always* reset the GuC just before (re)loading the firmware;
the hardware should then be in a well-known state, and we may even
avoid some of the issues arising from unpredictable timing.

Also added some more fields & values to the definition of the GUC_STATUS
register, which is the key diagnostic indicator if the GuC load fails.

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Cc: Alex Dai <yu.dai@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94390
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2016-04-05 13:29:24 +01:00
..
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: Move execlists irq handler to a bottom half 2016-04-04 14:08:52 +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/kbl: Remove preliminary_hw_support protection from KBL. 2016-03-30 10:51:53 -07:00
i915_drv.h drm/i915/guc: reset GuC and retry on firmware load failure 2016-04-05 13:29:24 +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 drm/i915: Use CPU mapping for userspace dma-buf mmap() 2016-02-09 11:21:03 +01:00
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: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
i915_gem_fence.c Linux 4.4-rc4 2015-12-08 11:04:26 +10:00
i915_gem_gtt.c drm/i915: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
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: Refactor common uninterruptible locking 2016-04-05 11:13:52 +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 drm/i915: get runtime PM reference around GEM set_tiling IOCTL 2015-11-17 18:43:30 +02:00
i915_gem_userptr.c drm/i915: Avoid snooping with userptr where not supported 2016-03-02 13:46:21 +00:00
i915_gem.c drm/i915: Move execlists irq handler to a bottom half 2016-04-04 14:08:52 +01:00
i915_gpu_error.c drm/i915: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
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: Move execlists irq handler to a bottom half 2016-04-04 14:08:52 +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/guc: reset GuC and retry on firmware load failure 2016-04-05 13:29:24 +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: More intel_engine_cs renaming 2016-03-16 15:33:24 +00:00
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 drm/i915: Drop unnecessary #include <linux/vga_switcheroo.h> 2015-10-13 10:18:38 +02:00
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: Move load time init of display/audio hooks earlier 2016-03-17 15:22:04 +02:00
intel_bios.c drm/i915: remove unused dev_priv->render_reclock_avail 2016-03-29 15:12:40 +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: Fix plane init failure paths 2016-04-01 23:24:21 +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: force full detect on sink count change 2016-04-01 10:20:22 +03:00
intel_dpll_mgr.c drm/i915: Add locking to pll updates, v3. 2016-03-31 09:43:11 +02:00
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: Read sink_count dpcd always 2016-04-01 10:20:21 +03:00
intel_dsi_panel_vbt.c drm/i915/dsi: add support for DSI sequence block v2 gpio element 2016-04-05 10:26:24 +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: Fix DSI HW state readout 2016-03-24 14:48:21 +02:00
intel_dsi.h drm/i915/bxt: Fix DSI HW state readout 2016-03-24 14:48:21 +02:00
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: make transcoder_name return a string 2016-03-16 18:09:53 +02:00
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 Merge drm-fixes into drm-next. 2016-03-14 09:46:02 +10:00
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: Actually retry with bit-banging after GMBUS timeout 2016-03-11 10:23:28 +02:00
intel_lrc.c drm/i915: Move execlists irq handler to a bottom half 2016-04-04 14:08:52 +01:00
intel_lrc.h drm/i915: Move execlists irq handler to a bottom half 2016-04-04 14:08:52 +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 drm/i915: Add HDMI aspect ratio property for SDVO 2015-09-30 10:20:12 +02:00
intel_opregion.c drm/i915/opregion: handle VBT sizes bigger than 6 KB 2015-12-17 11:40:57 +02:00
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: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
intel_psr.c Revert "drm/i915: Enable PSR by default on Valleyview and Cherryview." 2016-03-10 13:49:22 +02:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: Refer to GGTT {,VM} consistently 2016-03-31 17:55:43 +03:00
intel_ringbuffer.h drm/i915: Move execlists irq handler to a bottom half 2016-04-04 14:08:52 +01:00
intel_runtime_pm.c drm/i915/bxt: add dsi transcoders 2016-03-21 12:58:58 +02:00
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/guc: reset GuC and retry on firmware load failure 2016-04-05 13:29:24 +01:00
intel_vbt_defs.h drm/i915: hide away VBT private data in a separate header 2016-03-17 11:58:57 +02:00
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