AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-19 00:36:44 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
db18b6a64c
linux_dsm_epyc7002/drivers/gpu/drm/i915
History
Imre Deak db18b6a64c drm/i915/bxt: Fix DSI HW state readout 
Currently the machine hangs during booting while accessing the
BXT_MIPI_PORT_CTRL register during pipe HW state readout. After some
experimentation I found that the hang is caused by the DSI PLL being
disabled, or it being enabled but with an incorrect divider
configuration. Enabling the PLL got rid of the boot problem, so fix
this by checking the PLL enabled state/configuration before attempting
to read out the HW state.

The DSI_PLL_ENABLE register is in the always-on power well, while the
BXT_DSI_PLL_CTL is in power well 0. This isn't exactly matched by the
transcoder power domain, but what we really need is just a runtime PM
reference, which is provided by any power domain.

Ville also found this dependency specified in BSpec, so I added a
reference to that too.

v2:
- Make sure we hold a power reference while accessing the PLL registers.
v3: (Jani)
- Simplify check in bxt_get_dsi_transcoder_state()
- Add comment explaining why we check for valid dividers in
  bxt_dsi_pll_is_enabled()

CC: Shashank Sharma <shashank.sharma@intel.com>
CC: Uma Shankar <uma.shankar@intel.com>
CC: Jani Nikula <jani.nikula@intel.com>
Fixes: c6c794a2fc ("drm/i915/bxt: Initialize MIPI DSI for BXT")
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1458816100-31269-1-git-send-email-imre.deak@intel.com
2016-03-24 14:48:21 +02:00
..
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: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
i915_dma.c drm/i915: Fix use after free when printing load failure 2016-03-23 12:00:16 +02:00
i915_drv.c drm/i915: Implement color management on chv 2016-03-21 11:41:28 -07:00
i915_drv.h drm/i915: Split PNV version of crtc_compute_clock() 2016-03-23 14:23:36 +02:00
i915_gem_batch_pool.c
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
i915_gem_debug.c drm/i915: More renaming of rings to engines 2016-03-16 15:33:30 +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: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
i915_gem_fence.c Linux 4.4-rc4 2015-12-08 11:04:26 +10:00
i915_gem_gtt.c drm/i915: Tidy aliasing_gtt_bind_vma() 2016-03-23 18:02:47 +01:00
i915_gem_gtt.h drm/i915/gtt: Clean up GGTT probing code 2016-03-18 15:18:15 +02:00
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: Rename vma->*_list to *_link for consistency 2016-02-26 13:15:39 +00:00
i915_gem_stolen.c drm/i915: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
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: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
i915_gpu_error.c drm/i915/tdr: Prepare error handler to accept mask of hung engines 2016-03-22 14:12:59 +02:00
i915_guc_reg.h drm/i915/guc: Add GuC ADS (Addition Data Structure) - allocation 2016-01-05 11:33:34 +01:00
i915_guc_submission.c drm/i915: More intel_engine_cs renaming 2016-03-16 15:33:24 +00:00
i915_ioc32.c
i915_irq.c drm/i915/tdr: Prepare error handler to accept mask of hung engines 2016-03-22 14:12:59 +02:00
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/bxt: Fix DSI HW state readout 2016-03-24 14:48:21 +02:00
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: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
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: hide away VBT private data in a separate header 2016-03-17 11:58:57 +02:00
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: Implement color management on chv 2016-03-21 11:41:28 -07:00
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/bxt: add dsi transcoders 2016-03-21 12:58:58 +02:00
intel_display.c drm/i915/bxt: Fix DSI HW state readout 2016-03-24 14:48:21 +02:00
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: move VBT based eDP port check to intel_bios.c 2016-03-16 18:28:36 +02:00
intel_dpll_mgr.c drm/i915: fix sparse warning for using false as NULL 2016-03-17 11:12:07 +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: Implement color management on bdw/skl/bxt/kbl 2016-03-21 11:40:31 -07:00
intel_dsi_panel_vbt.c drm/i915/dsi: start using enum mipi_dsi_pixel_format 2016-03-16 17:55:52 +02:00
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: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
intel_fbdev.c drm/i915: Implement color management on bdw/skl/bxt/kbl 2016-03-21 11:40:31 -07:00
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: Support GuC SKL v6.1 2016-03-16 15:26:58 -07:00
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/tdr: Initialize hangcheck struct for each engine 2016-03-22 13:52:42 +02:00
intel_lrc.h drm/i915: Rename intel_engine_cs function parameters 2016-03-16 15:33:10 +00:00
intel_lvds.c drm/i915: move VBT based LVDS presence check to intel_bios.c 2016-03-16 18:28:26 +02:00
intel_mocs.c drm/i915: More renaming of rings to engines 2016-03-16 15:33:30 +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: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
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: Rename dev_priv->gtt to dev_priv->ggtt 2016-03-18 15:18:15 +02:00
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/tdr: Initialize hangcheck struct for each engine 2016-03-22 13:52:42 +02:00
intel_ringbuffer.h drm/i915: Use an array of register tables in command parser 2016-03-21 10:02:01 +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 the encoder vs. FDI dotclock check out from encoder .get_config() 2016-03-01 13:04:04 +02:00
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: Pass drm_frambuffer to intel_compute_page_offset() 2016-03-01 12:48:09 +02:00
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: Modify reset func to handle per engine resets 2016-03-17 15:01:15 +02:00
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