From: Michel Dänzer michel.daenzer@amd.com
This is hopefully safe: The kernel makes sure writes to these mappings finish before the GPU might start reading from them, and the GPU caches are invalidated at the start of a command stream.
Signed-off-by: Michel Dänzer michel.daenzer@amd.com --- src/gallium/drivers/radeon/r600_buffer_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/gallium/drivers/radeon/r600_buffer_common.c b/src/gallium/drivers/radeon/r600_buffer_common.c index 40917f0..c8a0723 100644 --- a/src/gallium/drivers/radeon/r600_buffer_common.c +++ b/src/gallium/drivers/radeon/r600_buffer_common.c @@ -131,7 +131,7 @@ bool r600_init_resource(struct r600_common_screen *rscreen, res->b.b.flags & (PIPE_RESOURCE_FLAG_MAP_PERSISTENT | PIPE_RESOURCE_FLAG_MAP_COHERENT)) { res->domains = RADEON_DOMAIN_GTT; - flags = 0; + flags = RADEON_FLAG_GTT_WC; }
/* Tiled textures are unmappable. Always put them in VRAM. */