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authorJesse Barnes <jbarnes@virtuousgeek.org>2010-02-06 10:41:53 -0800
committerEric Anholt <eric@anholt.net>2010-02-10 14:27:13 -0800
commitee25df2bc379728c45d81e04cf87984db1425edf (patch)
treedbd5629ce6e09ef67c2891cb5d3f535461f7f424 /drivers/gpu/drm/i915/i915_reg.h
parentdrm/i915: Increase fb alignment to 64k (diff)
downloadlinux-dev-ee25df2bc379728c45d81e04cf87984db1425edf.tar.xz
linux-dev-ee25df2bc379728c45d81e04cf87984db1425edf.zip
drm/i915: handle FBC and self-refresh better
On 945, we need to avoid entering self-refresh if the compressor is busy, or we may cause display FIFO underruns leading to ugly flicker. Fixes fdo bug #24314, kernel bug #15043. Tested-by: Alexander Lam <lambchop468@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Julien Cristau <jcristau@debian.org> (fd.o #25371) Cc: stable@kernel.org Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 847006c5218e..ab1bd2d3d3b6 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -338,6 +338,7 @@
#define FBC_CTL_PERIODIC (1<<30)
#define FBC_CTL_INTERVAL_SHIFT (16)
#define FBC_CTL_UNCOMPRESSIBLE (1<<14)
+#define FBC_C3_IDLE (1<<13)
#define FBC_CTL_STRIDE_SHIFT (5)
#define FBC_CTL_FENCENO (1<<0)
#define FBC_COMMAND 0x0320c