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8dee3eea3c
kernel-ark/drivers/gpu/drm/i915
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Ben Widawsky 8dee3eea3c drm/i915: Never read FORCEWAKE 
The same designer from the previous patch has told us to never read
FORCEWAKE. We only do this for the POSTING_READ(), so simply change that
to something within the same cacheline (for no reason in particular
other than it sounds nice). In the _mt case we can leverage
the gtfifodbg check for the POSTING_READ.

This partially reverts
commit 6af2d180f8
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jul 26 16:24:50 2012 +0200

    drm/i915: fix forcewake related hangs on snb

v2: commit message, comments about posting read from (Daniel)

Note: vlv forcewake doesn't need any changes for this special
treatment since FORCEWAKE_VLV is in a totally different register
range, and the readback FORCEWAKE_ACK_VLV readback that follows is in
the same range.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Added note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-09-03 10:28:32 +02:00
..
dvo_ch7xxx.c drm/i915: simplify dvo dpms interface 2012-08-17 10:10:02 +02:00
dvo_ch7017.c drm/i915: simplify dvo dpms interface 2012-08-17 10:10:02 +02:00
dvo_ivch.c drm/i915: simplify dvo dpms interface 2012-08-17 10:10:02 +02:00
dvo_ns2501.c drm/i915: simplify dvo dpms interface 2012-08-17 10:10:02 +02:00
dvo_sil164.c drm/i915: simplify dvo dpms interface 2012-08-17 10:10:02 +02:00
dvo_tfp410.c drm/i915: simplify dvo dpms interface 2012-08-17 10:10:02 +02:00
dvo.h drm/i915: simplify dvo dpms interface 2012-08-17 10:10:02 +02:00
i915_debugfs.c drm/i915: Convert remaining debugfs iterators over rings to for_each_ring() 2012-09-03 10:09:29 +02:00
i915_dma.c i915: use alloc_ordered_workqueue() instead of explicit UNBOUND w/ max_active = 1 2012-08-24 01:13:53 +02:00
i915_drv.c drm/i915: Find unclaimed MMIO writes. 2012-08-22 18:06:26 +02:00
i915_drv.h drm/ips: move drps/ips/ilk related variables into dev_priv->ips 2012-09-03 10:09:27 +02:00
i915_gem_context.c drm/i915: Only pwrite through the GTT if there is space in the aperture 2012-08-24 02:03:33 +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 drm/i915: Track unbound pages 2012-08-21 14:34:11 +02:00
i915_gem_evict.c drm/i915: Only pwrite through the GTT if there is space in the aperture 2012-08-24 02:03:33 +02:00
i915_gem_execbuffer.c drm/i915: Avoid unbinding due to an interrupted pin_and_fence during execbuffer 2012-08-24 21:02:51 +02:00
i915_gem_gtt.c Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-09-03 12:05:01 +10:00
i915_gem_stolen.c
i915_gem_tiling.c
i915_gem.c Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-09-03 12:05:01 +10:00
i915_ioc32.c
i915_irq.c drm/ips: move drps/ips/ilk related variables into dev_priv->ips 2012-09-03 10:09:27 +02:00
i915_reg.h Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-09-03 12:05:01 +10:00
i915_suspend.c Linux 3.5-rc7 2012-07-20 00:53:28 -04:00
i915_sysfs.c Linux 3.6-rc2 2012-08-17 09:01:08 +02:00
i915_trace_points.c
i915_trace.h drm/i915: add a tracepoint for gpu frequency changes 2012-09-03 10:09:27 +02:00
intel_acpi.c
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 Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-09-03 12:05:01 +10:00
intel_ddi.c drm/i915: write eld info for HDMI audio 2012-08-17 10:10:04 +02:00
intel_display.c drm/i915: Cantiga+ cannot handle a hsync front porch of 0 2012-08-22 17:39:01 +02:00
intel_dp.c Merge branch 'for-airlied' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-09-03 12:05:01 +10:00
intel_drv.h drm/i915: use cpu_relax() in wait_for_atomic 2012-09-03 10:21:29 +02:00
intel_dvo.c drm/i915: simplify dvo dpms interface 2012-08-17 10:10:02 +02:00
intel_fb.c drm/i915: Zero initialize mode_cmd 2012-07-05 13:27:58 +02:00
intel_hdmi.c drm: remove the raw_edid field from struct drm_display_info 2012-08-24 09:37:36 +10:00
intel_i2c.c drm/i915: ensure i2c adapter is all set before adding it 2012-08-13 19:04:24 +02:00
intel_lvds.c drm/i915: simplify possible_clones computation 2012-07-25 18:23:46 +02:00
intel_modes.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next 2012-08-27 16:22:20 +10:00
intel_opregion.c
intel_overlay.c drm/i915: Only pwrite through the GTT if there is space in the aperture 2012-08-24 02:03:33 +02:00
intel_panel.c drm/i915: Fix blank panel at reopening lid 2012-08-11 21:15:16 +02:00
intel_pm.c drm/i915: Never read FORCEWAKE 2012-09-03 10:28:32 +02:00
intel_ringbuffer.c drm/i915: add workarounds to gen7_render_ring_flush 2012-09-03 10:09:26 +02:00
intel_ringbuffer.h drm/i915: Lazily apply the SNB+ seqno w/a 2012-08-10 11:11:32 +02:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: fix sdvo hotplug support check and activation 2012-09-03 10:09:30 +02:00
intel_sprite.c drm/i915: mask tiled bit when updating ILK sprites 2012-07-20 12:21:40 +02:00
intel_tv.c drm/i915: drop intel_encoder argument to load_detect_pipe functions 2012-08-17 10:10:02 +02:00
Makefile drm/i915: Support for ns2501-DVO 2012-07-25 18:23:48 +02:00