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drm/i915: split aligned height calculation out v2 

For use by get_plane_config.

v2: cleanup tile_height bits (Chris)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Jesse Barnes 2014-02-07 12:10:35 -08:00 committed by Daniel Vetter
parent a8bb681827
commit a57ce0b2b7
1 changed files with 11 additions and 4 deletions
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15
drivers/gpu/drm/i915/intel_display.c
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@ -1932,6 +1932,14 @@ static bool need_vtd_wa(struct drm_device *dev)
return false;
}
static int intel_align_height(struct drm_device *dev, int height, bool tiled)
{
int tile_height;
tile_height = tiled ? (IS_GEN2(dev) ? 16 : 8) : 1;
return ALIGN(height, tile_height);
}
int
intel_pin_and_fence_fb_obj(struct drm_device *dev,
struct drm_i915_gem_object *obj,
@ -10573,7 +10581,7 @@ int intel_framebuffer_init(struct drm_device *dev,
struct drm_mode_fb_cmd2 *mode_cmd,
struct drm_i915_gem_object *obj)
{
int aligned_height, tile_height;
int aligned_height;
int pitch_limit;
int ret;
@ -10667,9 +10675,8 @@ int intel_framebuffer_init(struct drm_device *dev,
if (mode_cmd->offsets[0] != 0)
return -EINVAL;
tile_height = IS_GEN2(dev) ? 16 : 8;
aligned_height = ALIGN(mode_cmd->height,
obj->tiling_mode ? tile_height : 1);
aligned_height = intel_align_height(dev, mode_cmd->height,
obj->tiling_mode);
/* FIXME drm helper for size checks (especially planar formats)? */
if (obj->base.size < aligned_height * mode_cmd->pitches[0])
return -EINVAL;