diff options
| author | Alex Deucher <[email protected]> | 2013-04-24 12:26:52 -0400 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2013-04-24 18:54:31 -0400 |
| commit | 5bbeae7a3d3be17d44b1bc851872a107a75c393b (patch) | |
| tree | 1f9910aa85a122f562b1e9ee0fb6a5c501910199 /src/gallium/drivers/r600/r600_blit.c | |
| parent | 9d0ad4c2f2eb89bab82194478180df570cc7aa4e (diff) | |
r600g: use CP DMA for buffer clears on evergreen+
Lighter weight then using streamout. Only evergreen
and newer asics support embedded data as src with
CP DMA.
Reviewed-by: Jerome Glisse <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'src/gallium/drivers/r600/r600_blit.c')
| -rw-r--r-- | src/gallium/drivers/r600/r600_blit.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/gallium/drivers/r600/r600_blit.c b/src/gallium/drivers/r600/r600_blit.c index a0384bf366a..afe43896568 100644 --- a/src/gallium/drivers/r600/r600_blit.c +++ b/src/gallium/drivers/r600/r600_blit.c @@ -526,10 +526,16 @@ static void r600_clear_buffer(struct pipe_context *ctx, struct pipe_resource *ds unsigned offset, unsigned size, unsigned char value) { struct r600_context *rctx = (struct r600_context*)ctx; + uint32_t v = value; - if (rctx->screen->has_streamout && offset % 4 == 0 && size % 4 == 0) { + if (rctx->screen->has_cp_dma && + rctx->chip_class >= EVERGREEN && + offset % 4 == 0 && size % 4 == 0) { + uint32_t clear_value = v | (v << 8) | (v << 16) | (v << 24); + + evergreen_cp_dma_clear_buffer(rctx, dst, offset, size, clear_value); + } else if (rctx->screen->has_streamout && offset % 4 == 0 && size % 4 == 0) { union pipe_color_union clear_value; - uint32_t v = value; clear_value.ui[0] = v | (v << 8) | (v << 16) | (v << 24); |