diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_tiling.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_tiling.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index d61e74a08f82..d19c9db5e18c 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -183,18 +183,8 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev) if (IS_GEN4(dev)) { uint32_t ddc2 = I915_READ(DCC2); - if (!(ddc2 & DCC2_MODIFIED_ENHANCED_DISABLE)) { - /* Since the swizzling may vary within an - * object, we have no idea what the swizzling - * is for any page in particular. Thus we - * cannot migrate tiled pages using the GPU, - * nor can we tell userspace what the exact - * swizzling is for any object. - */ + if (!(ddc2 & DCC2_MODIFIED_ENHANCED_DISABLE)) dev_priv->quirks |= QUIRK_PIN_SWIZZLED_PAGES; - swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN; - swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN; - } } if (dcc == 0xffffffff) { @@ -474,7 +464,10 @@ i915_gem_get_tiling(struct drm_device *dev, void *data, } /* Hide bit 17 from the user -- see comment in i915_gem_set_tiling */ - args->phys_swizzle_mode = args->swizzle_mode; + if (dev_priv->quirks & QUIRK_PIN_SWIZZLED_PAGES) + args->phys_swizzle_mode = I915_BIT_6_SWIZZLE_UNKNOWN; + else + args->phys_swizzle_mode = args->swizzle_mode; if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_17) args->swizzle_mode = I915_BIT_6_SWIZZLE_9; if (args->swizzle_mode == I915_BIT_6_SWIZZLE_9_10_17) |