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linux/drivers/gpu/drm/i915
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Chris Wilson 12f55818ba drm/i915: Add comments to explain the BSD tail write workaround 
Having had to dive into the bspec to understand what each stage of the
workaround meant, and how that the ring broadcasting IDLE corresponded
with the GT powering down the ring (i.e. rc6) add comments to aide
the next reader.

And since the register "is used to control all aspects of PSMI and power
saving functions" that makes it quite interesting to inspect with
regards to RC6 hangs, so add it to the error-state.

v2: Rediscover the piece of magic, set the RNCID to 0 before waiting for
the ring to wake up.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-07-20 12:21:37 +02:00
..
dvo.h drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
dvo_ch7xxx.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_ch7017.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_ivch.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_sil164.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
dvo_tfp410.c Drivers: i915: Fix all space related issues. 2011-09-19 18:01:47 -07:00
i915_debugfs.c drm/i915: Add comments to explain the BSD tail write workaround 2012-07-20 12:21:37 +02:00
i915_dma.c drm/i915: get rid of dev_priv->info->has_pch_split 2012-07-05 09:56:05 +02:00
i915_drv.c drm: kill reclaim_buffers callback 2012-07-19 22:50:28 -04:00
i915_drv.h drm/i915: Add comments to explain the BSD tail write workaround 2012-07-20 12:21:37 +02:00
i915_gem.c drm/i915: Disable the BLT on pre-production SNB hardware 2012-07-20 12:21:37 +02:00
i915_gem_context.c drm/i915/context/: s/CTX/CXT 2012-07-20 12:21:35 +02:00
i915_gem_debug.c drm/i915: stop using dev->agp->base 2012-06-12 22:18:06 +02:00
i915_gem_dmabuf.c i915: add dma-buf vmap support for exporting vmapped buffer 2012-05-31 14:13:57 +01:00
i915_gem_evict.c drm: Add colouring to the range allocator 2012-07-16 05:59:37 +10:00
i915_gem_execbuffer.c drm/i915: disable flushing_list/gpu_write_list 2012-06-20 13:54:28 +02:00
i915_gem_gtt.c i915: add dmabuf/prime buffer sharing support. 2012-05-23 10:47:10 +01:00
i915_gem_stolen.c drm/i915: Split the stolen handling for GEM out of i915_dma.c 2012-05-03 11:18:11 +02:00
i915_gem_tiling.c drm/i915: Only the zap the VMA after updating the tiling parameters 2012-05-03 11:18:07 +02:00
i915_ioc32.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
i915_irq.c drm/i915: Add comments to explain the BSD tail write workaround 2012-07-20 12:21:37 +02:00
i915_reg.h drm/i915: Add comments to explain the BSD tail write workaround 2012-07-20 12:21:37 +02:00
i915_suspend.c drm/i915: wrap up gt powersave enabling functions 2012-06-25 21:07:03 +02:00
i915_sysfs.c drm/i915: simplify sysfs setup code 2012-06-01 10:00:57 +02:00
i915_trace.h drm/i915: improve i915_wait_request_begin trace 2012-05-25 09:55:15 +02:00
i915_trace_points.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
intel_acpi.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
intel_bios.c drm/i915/bios: cleanup return type of intel_parse_bios() 2012-06-27 10:17:51 +01:00
intel_bios.h drm/i915/bios: cleanup return type of intel_parse_bios() 2012-06-27 10:17:51 +01:00
intel_crt.c drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
intel_ddi.c drm/i915: program FDI_RX TP and FDI delays 2012-07-05 15:09:03 +02:00
intel_display.c drm/i915: initialize power wells in modeset_init_hw 2012-07-20 12:21:36 +02:00
intel_dp.c drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
intel_drv.h drm/i915: initialize power wells in modeset_init_hw 2012-07-20 12:21:36 +02:00
intel_dvo.c drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
intel_fb.c drm/i915: Zero initialize mode_cmd 2012-07-05 13:27:58 +02:00
intel_hdmi.c drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
intel_i2c.c drm/i915: be more careful when returning -ENXIO in gmbus transfer 2012-05-21 21:04:21 +02:00
intel_lvds.c drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
intel_modes.c Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next 2012-04-12 10:27:01 +01:00
intel_opregion.c drm/i915: [sparse] __iomem fixes for opregion 2012-05-03 11:18:00 +02:00
intel_overlay.c drm/i915: s/i915_wait_request/i915_wait_seqno/g 2012-05-25 14:18:42 +02:00
intel_panel.c drm/i915: properly enable the blc controller on the right pipe 2012-06-12 19:27:58 +02:00
intel_pm.c drm/i915: initialize power wells in modeset_init_hw 2012-07-20 12:21:36 +02:00
intel_ringbuffer.c drm/i915: Add comments to explain the BSD tail write workaround 2012-07-20 12:21:37 +02:00
intel_ringbuffer.h drm/i915: disable flushing_list/gpu_write_list 2012-06-20 13:54:28 +02:00
intel_sdvo.c drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
intel_sdvo_regs.h drm/i915: properly handle interlaced bit for sdvo dtd conversion 2012-05-24 17:53:52 +02:00
intel_sprite.c drm/i915/sprite: Fix mem leak in intel_plane_init() 2012-06-27 17:03:24 +02:00
intel_tv.c drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
Makefile drm/i915: preliminary context support 2012-06-14 17:36:16 +02:00