diff options
| -rw-r--r-- | src/gallium/drivers/radeon/r600_texture.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/r600_texture.c b/src/gallium/drivers/radeon/r600_texture.c index ebb7090697d..9ba1e363e27 100644 --- a/src/gallium/drivers/radeon/r600_texture.c +++ b/src/gallium/drivers/radeon/r600_texture.c @@ -852,6 +852,12 @@ static void *r600_texture_transfer_map(struct pipe_context *ctx, if (rtex->surface.level[level].mode >= RADEON_SURF_MODE_1D) use_staging_texture = TRUE; + /* Untiled buffers in VRAM, which is slow for CPU reads */ + if ((usage & PIPE_TRANSFER_READ) && !(usage & PIPE_TRANSFER_MAP_DIRECTLY) && + (rtex->resource.domains == RADEON_DOMAIN_VRAM)) { + use_staging_texture = TRUE; + } + /* Use a staging texture for uploads if the underlying BO is busy. */ if (!(usage & PIPE_TRANSFER_READ) && (r600_rings_is_buffer_referenced(rctx, rtex->resource.cs_buf, RADEON_USAGE_READWRITE) || |