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drm/i915: Pass stride to rotate_pages() 

Pass stride in addition to width and height to rotate_pages(). For now
width and stride are the same, but once framebuffer offsets enter the
scene that may no longer be the case.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453316739-13296-3-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2016-01-20 21:05:23 +02:00
parent 7723f47dc6
commit 871302555b
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/i915/i915_gem_gtt.c
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@ -3348,6 +3348,7 @@ i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj,
static struct scatterlist *
rotate_pages(const dma_addr_t *in, unsigned int offset,
unsigned int width, unsigned int height,
unsigned int stride,
struct sg_table *st, struct scatterlist *sg)
{
unsigned int column, row;
@ -3359,7 +3360,7 @@ rotate_pages(const dma_addr_t *in, unsigned int offset,
}
for (column = 0; column < width; column++) {
src_idx = width * (height - 1) + column;
src_idx = stride * (height - 1) + column;
for (row = 0; row < height; row++) {
st->nents++;
/* We don't need the pages, but need to initialize
@ -3370,7 +3371,7 @@ rotate_pages(const dma_addr_t *in, unsigned int offset,
sg_dma_address(sg) = in[offset + src_idx];
sg_dma_len(sg) = PAGE_SIZE;
sg = sg_next(sg);
src_idx -= width;
src_idx -= stride;
}
}
@ -3423,6 +3424,7 @@ intel_rotate_fb_obj_pages(struct i915_ggtt_view *ggtt_view,
/* Rotate the pages. */
sg = rotate_pages(page_addr_list, 0,
rot_info->width_pages, rot_info->height_pages,
rot_info->width_pages,
st, NULL);
/* Append the UV plane if NV12. */
@ -3438,6 +3440,7 @@ intel_rotate_fb_obj_pages(struct i915_ggtt_view *ggtt_view,
rotate_pages(page_addr_list, uv_start_page,
rot_info->width_pages_uv,
rot_info->height_pages_uv,
rot_info->width_pages_uv,
st, sg);
}