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authorZhenyu Wang <zhenyuw@linux.intel.com>2010-01-05 11:25:06 +0800
committerEric Anholt <eric@anholt.net>2010-01-15 14:50:14 -0800
commit9b974cc17166d31afed2638d56bdbf9829afbfaa (patch)
tree3c129919c69d932282b7c5fb7c712914547bf9fa /drivers/gpu
parent6251ec0ae2eb9e9e96689422358c2fdb35c63768 (diff)
downloadop-kernel-dev-9b974cc17166d31afed2638d56bdbf9829afbfaa.zip
op-kernel-dev-9b974cc17166d31afed2638d56bdbf9829afbfaa.tar.gz
drm/i915: enable 36bit physical address for hardware status page
This enables possible 36bit address mask on 965G that use physical address for hw status page. Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com> Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index bbe4781..e660ac0 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -134,6 +134,10 @@ static int i915_init_phys_hws(struct drm_device *dev)
memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
+ if (IS_I965G(dev))
+ dev_priv->dma_status_page |= (dev_priv->dma_status_page >> 28) &
+ 0xf0;
+
I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
DRM_DEBUG_DRIVER("Enabled hardware status page\n");
return 0;
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