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sna: Only try the SRC fixup into the buffer if it is CPU mapped

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On one particular machine, this operation is behaving as if it is
reading back UC memory during the explicit write-only composite.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2013-02-07 10:42:58 +00:00
parent 889ed28f52
commit bc8a2c30c4
1 changed files with 5 additions and 3 deletions
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8
src/sna/sna_render.c
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@@ -1576,8 +1576,10 @@ do_fixup:
}
/* Composite in the original format to preserve idiosyncracies */
if (picture->format == channel->pict_format)
dst = pixman_image_create_bits(picture->format,
if (!kgem_buffer_is_inplace(channel->bo) &&
(picture->pDrawable == NULL ||
picture->format == channel->pict_format))
dst = pixman_image_create_bits(channel->pict_format,
w, h, ptr, channel->bo->pitch);
else
dst = pixman_image_create_bits(picture->format, w, h, NULL, 0);
@@ -1603,7 +1605,7 @@ do_fixup:
free_pixman_pict(picture, src);
/* Then convert to card format */
if (picture->format != channel->pict_format) {
if (pixman_image_get_data(dst) != ptr) {
DBG(("%s: performing post-conversion %08x->%08x (%d, %d)\n",
__FUNCTION__,
picture->format, channel->pict_format,