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-rw-r--r--drivers/gpu/drm/i915/i915_gem.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 2865b44dfab2..315a49e4323f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2248,6 +2248,13 @@ static int sandybridge_write_fence_reg(struct drm_i915_gem_object *obj,
int regnum = obj->fence_reg;
uint64_t val;
+ /* Adjust fence size to match tiled area */
+ if (obj->tiling_mode != I915_TILING_NONE) {
+ uint32_t row_size = obj->stride *
+ (obj->tiling_mode == I915_TILING_Y ? 32 : 8);
+ size = (size / row_size) * row_size;
+ }
+
val = (uint64_t)((obj->gtt_offset + size - 4096) &
0xfffff000) << 32;
val |= obj->gtt_offset & 0xfffff000;
@@ -2285,6 +2292,13 @@ static int i965_write_fence_reg(struct drm_i915_gem_object *obj,
int regnum = obj->fence_reg;
uint64_t val;
+ /* Adjust fence size to match tiled area */
+ if (obj->tiling_mode != I915_TILING_NONE) {
+ uint32_t row_size = obj->stride *
+ (obj->tiling_mode == I915_TILING_Y ? 32 : 8);
+ size = (size / row_size) * row_size;
+ }
+
val = (uint64_t)((obj->gtt_offset + size - 4096) &
0xfffff000) << 32;
val |= obj->gtt_offset & 0xfffff000;