drm/i915: Mark up object tiling-and-stride getters as const

For that little bit of defense against a tired programmer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180725155447.11909-1-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index a4031fab57b0aab5f8befb07d76909c01270dcad..0946e1932907679b716100446623b8b75de06066 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1911,7 +1911,7 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
        return 0;
 }
 
-static unsigned int tile_row_pages(struct drm_i915_gem_object *obj)
+static unsigned int tile_row_pages(const struct drm_i915_gem_object *obj)
 {
        return i915_gem_object_get_tile_row_size(obj) >> PAGE_SHIFT;
 }
@@ -1970,7 +1970,7 @@ int i915_gem_mmap_gtt_version(void)
 }
 
 static inline struct i915_ggtt_view
-compute_partial_view(struct drm_i915_gem_object *obj,
+compute_partial_view(const struct drm_i915_gem_object *obj,
                     pgoff_t page_offset,
                     unsigned int chunk)
 {

diff --git a/drivers/gpu/drm/i915/i915_gem_object.h b/drivers/gpu/drm/i915/i915_gem_object.h
index 83e5e01fa9eaa9c8586445329089959290f2f32d..a6dd7c46de0dddb4a8f2c09a21651ac1c1a8cb21 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/i915_gem_object.h
@@ -421,19 +421,19 @@ i915_gem_object_is_framebuffer(const struct drm_i915_gem_object *obj)
 }
 
 static inline unsigned int
-i915_gem_object_get_tiling(struct drm_i915_gem_object *obj)
+i915_gem_object_get_tiling(const struct drm_i915_gem_object *obj)
 {
        return obj->tiling_and_stride & TILING_MASK;
 }
 
 static inline bool
-i915_gem_object_is_tiled(struct drm_i915_gem_object *obj)
+i915_gem_object_is_tiled(const struct drm_i915_gem_object *obj)
 {
        return i915_gem_object_get_tiling(obj) != I915_TILING_NONE;
 }
 
 static inline unsigned int
-i915_gem_object_get_stride(struct drm_i915_gem_object *obj)
+i915_gem_object_get_stride(const struct drm_i915_gem_object *obj)
 {
        return obj->tiling_and_stride & STRIDE_MASK;
 }
@@ -446,13 +446,13 @@ i915_gem_tile_height(unsigned int tiling)
 }
 
 static inline unsigned int
-i915_gem_object_get_tile_height(struct drm_i915_gem_object *obj)
+i915_gem_object_get_tile_height(const 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)
+i915_gem_object_get_tile_row_size(const struct drm_i915_gem_object *obj)
 {
        return (i915_gem_object_get_stride(obj) *
                i915_gem_object_get_tile_height(obj));