diff options
| author | Alex Deucher <[email protected]> | 2013-03-15 14:29:24 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2013-03-17 13:32:48 -0400 |
| commit | 4409758a046a47b09cdd339f97afd22107c68f0c (patch) | |
| tree | 550518e007a81a257ca56d3fadb3989c2187cd03 /src/gallium/drivers | |
| parent | 346a1b9bb927625ae5d315bfa1655be734be69de (diff) | |
r600g: Use blitter rather than DMA for 128bpp on cayman (v3)
On cayman, 128bpp surfaces require non_disp ordering for hw
access to both linear and tiled surfaces. When we use the 3D
engine we can set the non_disp ordering on both the tiled and
linear sides (via CB or texture), but when we use the DMA
engine, we can only set the non_disp ordering on the tiled
side, so after a L2T operation with the DMA engine, the data
ends up in the wrong order on the tiled side.
v2: cayman/TN only
v3: fix comments
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=60802
Note: this is a candidate for the 9.1 branch.
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'src/gallium/drivers')
| -rw-r--r-- | src/gallium/drivers/r600/evergreen_state.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c index 2bdefb0d351..6b6d93e3f83 100644 --- a/src/gallium/drivers/r600/evergreen_state.c +++ b/src/gallium/drivers/r600/evergreen_state.c @@ -3674,6 +3674,17 @@ boolean evergreen_dma_blit(struct pipe_context *ctx, return FALSE; } + /* 128 bpp surfaces require non_disp_tiling for both + * tiled and linear buffers on cayman. However, async + * DMA only supports it on the tiled side. As such + * the tile order is backwards after a L2T/T2L packet. + */ + if ((rctx->chip_class == CAYMAN) && + (src_mode != dst_mode) && + (util_format_get_blocksize(src->format) >= 16)) { + return FALSE; + } + if (src_mode == dst_mode) { uint64_t dst_offset, src_offset; /* simple dma blit would do NOTE code here assume : |