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drm/i915: Extract tile_row_size for fencing

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Computing the tile row size of a tiled object (for use with fence
registers) is repeated, so extract it to a common helper.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109161613.11881-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Chris Wilson
2017-01-09 16:16:08 +00:00
parent 9e65a37872
commit 6649a0b650
3 changed files with 23 additions and 10 deletions
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7
drivers/gpu/drm/i915/i915_gem.c
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@@ -1696,12 +1696,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
static unsigned int tile_row_pages(struct drm_i915_gem_object *obj)
{
u64 size;
size = i915_gem_object_get_stride(obj);
size *= i915_gem_object_get_tiling(obj) == I915_TILING_Y ? 32 : 8;
return size >> PAGE_SHIFT;
return i915_gem_object_get_tile_row_size(obj) >> PAGE_SHIFT;
}
/**