diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_tiling.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_gem_tiling.c | 46 |
1 files changed, 22 insertions, 24 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index 30d6af6..df278b2 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -304,35 +304,39 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev) /** - * Returns the size of the fence for a tiled object of the given size. + * Returns whether an object is currently fenceable. If not, it may need + * to be unbound and have its pitch adjusted. */ -static int -i915_get_fence_size(struct drm_device *dev, int size) +bool +i915_obj_fenceable(struct drm_device *dev, struct drm_gem_object *obj) { - int i; - int start; + struct drm_i915_gem_object *obj_priv = obj->driver_private; if (IS_I965G(dev)) { /* The 965 can have fences at any page boundary. */ - return ALIGN(size, 4096); + if (obj->size & 4095) + return false; + return true; + } else if (IS_I9XX(dev)) { + if (obj_priv->gtt_offset & ~I915_FENCE_START_MASK) + return false; } else { - /* Align the size to a power of two greater than the smallest - * fence size. - */ - if (IS_I9XX(dev)) - start = 1024 * 1024; - else - start = 512 * 1024; + if (obj_priv->gtt_offset & ~I830_FENCE_START_MASK) + return false; + } - for (i = start; i < size; i <<= 1) - ; + /* Power of two sized... */ + if (obj->size & (obj->size - 1)) + return false; - return i; - } + /* Objects must be size aligned as well */ + if (obj_priv->gtt_offset & (obj->size - 1)) + return false; + return true; } /* Check pitch constriants for all chips & tiling formats */ -static bool +bool i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode) { int tile_width; @@ -384,12 +388,6 @@ i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode) if (stride & (stride - 1)) return false; - /* We don't 0handle the aperture area covered by the fence being bigger - * than the object size. - */ - if (i915_get_fence_size(dev, size) != size) - return false; - return true; } |