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d3373a241b
linux/drivers/gpu/drm/i915
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Chris Wilson d3373a241b drm/i915: Flush the context object from the CPU caches upon switching 
The issue is that we stale data in the CPU caches, when we come to
swap-out the object, the CPU may short-circuit the reads from those
cacheline and so corrupt the context object.

Secondary, leaving the context object as being marked in the CPU write
domain whilst on the GPU active list is a bad idea and will throw
warnings later.

Note: Thanks to calling set_to_gtt_domain with write = false and not
setting any gpu write domain when putting a context object onto the
active list (when we switch away from it) the set_to_gtt_domain call
won't block.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: Added a note to the commit message and a comment in the code
to explain the clever non-blocking trick.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-07-25 10:39:57 +02:00
..
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
dvo.h drm: Make the .mode_fixup() operations mode argument a const pointer 2012-07-19 21:52:38 -04:00
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_context.c drm/i915: Flush the context object from the CPU caches upon switching 2012-07-25 10:39:57 +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: Insert a flush between batches if the breadcrumb was dropped 2012-07-20 12:21:40 +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_gem.c drm/i915: Disable the BLT on pre-production SNB hardware 2012-07-20 12:21:37 +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: fix up PCH backlight #define mixup 2012-07-20 12:21:38 +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_points.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
i915_trace.h drm/i915: improve i915_wait_request_begin trace 2012-05-25 09:55:15 +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/i915: check whether we actually received an edid in detect_ddc 2012-07-20 12:21:38 +02:00
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: Make the lock for pageflips interruptible 2012-07-20 12:21:41 +02:00
intel_dp.c drm/i915: try to train DP even harder 2012-07-20 12:21:39 +02:00
intel_drv.h drm/i915: kill intel_ddc_probe 2012-07-20 12:21:39 +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 drm/i915: kill intel_ddc_probe 2012-07-20 12:21:39 +02:00
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: don't forget the PCH backlight registers 2012-07-20 12:21:41 +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: missing error case in init status page 2012-07-20 12:21:40 +02:00
intel_ringbuffer.h drm/i915: disable flushing_list/gpu_write_list 2012-06-20 13:54:28 +02:00
intel_sdvo_regs.h drm/i915: properly handle interlaced bit for sdvo dtd conversion 2012-05-24 17:53:52 +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_sprite.c drm/i915: mask tiled bit when updating ILK sprites 2012-07-20 12:21:40 +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