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authorDavid S. Miller2011-03-04 06:27:42 +0100
committerDavid S. Miller2011-03-04 06:27:42 +0100
commit0a0e9ae1bd788bc19adc4d4ae08c98b233697402 (patch)
tree13825eeb5bbeae27d66e95f12168eff4b60701ab /drivers/gpu/drm/i915/i915_gem_tiling.c
parentnetlink: kill eff_cap from struct netlink_skb_parms (diff)
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmo... (diff)
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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/bnx2x/bnx2x.h
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_tiling.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_tiling.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 22a32b9932c5..79a04fde69b5 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -184,7 +184,7 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
static bool
i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode)
{
- int tile_width;
+ int tile_width, tile_height;
/* Linear is always fine */
if (tiling_mode == I915_TILING_NONE)
@@ -215,6 +215,20 @@ i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode)
}
}
+ if (IS_GEN2(dev) ||
+ (tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev)))
+ tile_height = 32;
+ else
+ tile_height = 8;
+ /* i8xx is strange: It has 2 interleaved rows of tiles, so needs an even
+ * number of tile rows. */
+ if (IS_GEN2(dev))
+ tile_height *= 2;
+
+ /* Size needs to be aligned to a full tile row */
+ if (size & (tile_height * stride - 1))
+ return false;
+
/* 965+ just needs multiples of tile width */
if (INTEL_INFO(dev)->gen >= 4) {
if (stride & (tile_width - 1))