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author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-09 16:16:08 +0000 |
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committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-10 08:12:09 +0000 |
commit | 6649a0b6501d78042fd0fffaaefab1aeee27e75d (patch) | |
tree | 80d82be56d01ea4c0746cda2bd36be697c950167 /drivers/gpu/drm/i915/i915_gem_object.h | |
parent | 9e65a37872174bd3615b16fa556377ebf5a3f0cd (diff) | |
download | op-kernel-dev-6649a0b6501d78042fd0fffaaefab1aeee27e75d.zip op-kernel-dev-6649a0b6501d78042fd0fffaaefab1aeee27e75d.tar.gz |
drm/i915: Extract tile_row_size for fencing
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>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_object.h')
-rw-r--r-- | drivers/gpu/drm/i915/i915_gem_object.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_object.h b/drivers/gpu/drm/i915/i915_gem_object.h index 6a368de..ed3f4d5 100644 --- a/drivers/gpu/drm/i915/i915_gem_object.h +++ b/drivers/gpu/drm/i915/i915_gem_object.h @@ -317,6 +317,26 @@ i915_gem_object_get_stride(struct drm_i915_gem_object *obj) return obj->tiling_and_stride & STRIDE_MASK; } +static inline unsigned int +i915_gem_tile_height(unsigned int tiling) +{ + GEM_BUG_ON(!tiling); + return tiling == I915_TILING_Y ? 32 : 8; +} + +static inline unsigned int +i915_gem_object_get_tile_height(struct drm_i915_gem_object *obj) +{ + return i915_gem_tile_height(i915_gem_object_get_tiling(obj)); +} + +static inline unsigned int +i915_gem_object_get_tile_row_size(struct drm_i915_gem_object *obj) +{ + return (i915_gem_object_get_stride(obj) * + i915_gem_object_get_tile_height(obj)); +} + static inline struct intel_engine_cs * i915_gem_object_last_write_engine(struct drm_i915_gem_object *obj) { |