Aurelien
/
xf86-video-intel
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

sna: Fallback if we cannot fit the tiling copy into the aperture 

If we cannot fit the source/destination and a tile into the aperture,
then we cannot perform the copy and must do it using the CPU.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2013-03-07 23:03:52 +00:00
parent 50d0ea02b3
commit dcd52d0c18
1 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/sna/sna_tiling.c
View File

@ -690,7 +690,7 @@ bool sna_tiling_blt_copy_boxes(struct sna *sna, uint8_t alu,
{
RegionRec region, tile, this;
struct kgem_bo *bo;
int step;
int max_size, step;
bool ret = false;
if (!kgem_bo_can_blt(&sna->kgem, src_bo) ||
@ -703,14 +703,27 @@ bool sna_tiling_blt_copy_boxes(struct sna *sna, uint8_t alu,
return false;
}
max_size = sna->kgem.aperture_high * PAGE_SIZE;
max_size -= MAX(kgem_bo_size(src_bo), kgem_bo_size(dst_bo));
if (max_size <= 0) {
DBG(("%s: tiles cannot fit into aperture\n", __FUNCTION__));
return false;
}
if (max_size > sna->kgem.max_copy_tile_size)
max_size = sna->kgem.max_copy_tile_size;
pixman_region_init_rects(&region, box, nbox);
/* Use a small step to accommodate enlargement through tile alignment */
step = sna->render.max_3d_size;
if (region.extents.x1 & (8*512 / bpp - 1) || region.extents.y1 & 63)
step /= 2;
while (step * step * 4 > sna->kgem.max_copy_tile_size)
while (step * step * 4 > max_size)
step /= 2;
if (step == 0) {
DBG(("%s: tiles cannot fit into aperture\n", __FUNCTION__));
return false;
}
DBG(("%s (alu=%d), tile.size=%d, box=%dx[(%d, %d), (%d, %d)])\n",
__FUNCTION__, alu, step, nbox,