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linux/drivers/gpu/drm/i915
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Ben Widawsky 2ff4aeac39 drm/i915: Fix pte updates in ggtt clear range 
This bug was introduced by me:
commit e76e9aebcd
Author: Ben Widawsky <ben@bwidawsk.net>
Date:   Sun Nov 4 09:21:27 2012 -0800

    drm/i915: Stop using AGP layer for GEN6+

The existing code uses memset_io which follows memset semantics in only
guaranteeing a write of individual bytes. Since a PTE entry is 4 bytes,
this can only be correct if the scratch page address is 0.

This caused unsightly errors when we clear the range at load time,
though I'm not really sure what the heck is referencing that memory
anyway. I caught this is because I believe we have some other bug where
the display is doing reads of memory we feel should be cleared (or we
are relying on scratch pages to be a specific value).

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-11-29 11:14:44 +01:00
..
dvo_ch7xxx.c drm/i915/dvo-ch7xxx: fix get_hw_state 2012-10-12 10:59:11 +02:00
dvo_ch7017.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo_ivch.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo_ns2501.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo_sil164.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo_tfp410.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo.h Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
i915_debugfs.c drm/i915: Missed lock change with rps lock 2012-11-11 23:51:45 +01:00
i915_dma.c Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-11-20 09:22:35 +10:00
i915_drv.c drm/i915: promote Haswell to full support 2012-11-23 19:40:14 +01:00
i915_drv.h drm/i915: fix intel_ddi_get_cdclk_freq for ULT machines 2012-11-21 17:47:11 +01:00
i915_gem_context.c drm/i915: Allocate the proper size for contexts. 2012-11-11 23:51:47 +01:00
i915_gem_debug.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
i915_gem_dmabuf.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
i915_gem_evict.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
i915_gem_execbuffer.c drm/i915: Remove bogus test for a present execbuffer 2012-11-21 17:45:03 +01:00
i915_gem_gtt.c drm/i915: Fix pte updates in ggtt clear range 2012-11-29 11:14:44 +01:00
i915_gem_stolen.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
i915_gem_tiling.c Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-10-07 21:13:54 +10:00
i915_gem.c drm/i915: Borrow our struct_mutex for the direct reclaim 2012-11-21 17:47:14 +01:00
i915_ioc32.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
i915_irq.c drm/i915: protect RPS/RC6 related accesses (including PCU) with a new mutex 2012-11-11 23:51:41 +01:00
i915_reg.h drm/i915: make the panel fitter work on pipes B and C on IVB 2012-11-21 17:47:09 +01:00
i915_suspend.c drm/i915: Remove save/restore of physical HWS_PGA register 2012-11-21 17:45:02 +01:00
i915_sysfs.c drm/i915: protect RPS/RC6 related accesses (including PCU) with a new mutex 2012-11-11 23:51:41 +01:00
i915_trace_points.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
i915_trace.h drm/i915: Allow DRM_ROOT_ONLY|DRM_MASTER to submit privileged batchbuffers 2012-10-17 21:06:59 +02:00
intel_acpi.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
intel_bios.c drm/i915: Only check for valid PP_{ON, OFF}_DELAYS on pre ILK hardware 2012-11-21 17:45:01 +01:00
intel_bios.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
intel_crt.c drm/i915: don't limit Haswell CRT encoder to pipe A 2012-11-21 17:46:45 +01:00
intel_ddi.c drm/i915: fix intel_ddi_get_cdclk_freq for ULT machines 2012-11-21 17:47:11 +01:00
intel_display.c drm/i915: drm_connector_property -> drm_object_property 2012-11-21 22:12:26 +01:00
intel_dp.c drm/i915: drm_connector_property -> drm_object_property 2012-11-21 22:12:26 +01:00
intel_drv.h drm/i915: Flush outstanding unpin tasks before pageflipping 2012-11-21 17:45:06 +01:00
intel_dvo.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
intel_fb.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
intel_hdmi.c drm/i915: drm_connector_property -> drm_object_property 2012-11-21 22:12:26 +01:00
intel_i2c.c drm/i915/i2c: Track users of GMBUS force-bit 2012-11-13 16:10:04 +01:00
intel_lvds.c drm/i915: Report the origin of the LVDS fixed panel mode 2012-11-22 22:16:03 +01:00
intel_modes.c drm/i915: drm_connector_property -> drm_object_property 2012-11-21 22:12:26 +01:00
intel_opregion.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
intel_overlay.c drm/i915: fix overlay on i830M 2012-10-23 12:57:50 +02:00
intel_panel.c drm/i915: resurrect panel lid handling 2012-11-21 17:45:05 +01:00
intel_pm.c drm/i915: implement WaMbcDriverBootEnable on Haswell 2012-11-21 17:47:11 +01:00
intel_ringbuffer.c drm/i915: Use LRI to update the semaphore registers 2012-11-21 17:45:00 +01:00
intel_ringbuffer.h drm/i915: TLB invalidation with MI_FLUSH_DW requires a post-sync op v3 2012-11-11 23:51:36 +01:00
intel_sdvo_regs.h drm/i915: clear the entire sdvo infoframe buffer 2012-10-24 15:12:48 +02:00
intel_sdvo.c drm/i915/sdvo: kfree the intel_sdvo_connector, not drm_connector, on destroy 2012-11-22 14:10:19 +01:00
intel_sprite.c drm/i915: Bad pixel formats can't reach the sprite code 2012-11-11 23:51:14 +01:00
intel_tv.c drm/i915: drm_connector_property -> drm_object_property 2012-11-21 22:12:26 +01:00
Makefile drm/i915: Support for ns2501-DVO 2012-07-25 18:23:48 +02:00