[Intel-gfx] [PATCH 12/12] drm/i915: set swizzling to none on VLV

Jesse Barnes jbarnes at virtuousgeek.org
Wed Oct 3 00:43:46 CEST 2012


We don't have bit 6 swizzling on VLV, so this function is easy.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/i915_gem_tiling.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 8093ecd..71084ed 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -92,7 +92,10 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
 	uint32_t swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
 	uint32_t swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
 
-	if (INTEL_INFO(dev)->gen >= 6) {
+	if (IS_VALLEYVIEW(dev)) {
+		swizzle_x = I915_BIT_6_SWIZZLE_NONE;
+		swizzle_y = I915_BIT_6_SWIZZLE_NONE;
+	} else if (INTEL_INFO(dev)->gen >= 6) {
 		uint32_t dimm_c0, dimm_c1;
 		dimm_c0 = I915_READ(MAD_DIMM_C0);
 		dimm_c1 = I915_READ(MAD_DIMM_C1);
-- 
1.7.9.5




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