r600g: set SMX_ACTION_ENA to fix streamout cache flushes on some chipsets

It helps on R7xx.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/src/gallium/drivers/r600/r600_hw_context.c b/src/gallium/drivers/r600/r600_hw_context.c
index a0224363fd4143e1280249dfb79b4ed512254b16..0fed95c576cd62b053a8bb3d35a50d199c3d274e 100644 (file)
--- a/src/gallium/drivers/r600/r600_hw_context.c
+++ b/src/gallium/drivers/r600/r600_hw_context.c
@@ -1453,7 +1453,8 @@ void r600_context_streamout_end(struct r600_context *ctx)
        }
 
        /* Flush streamout caches. */
-       ctx->surface_sync_cmd.flush_flags |= flush_flags;
+       ctx->surface_sync_cmd.flush_flags |=
+               S_0085F0_SMX_ACTION_ENA(1) | flush_flags;
        r600_atom_dirty(ctx, &ctx->surface_sync_cmd.atom);
 
        ctx->num_cs_dw_streamout_end = 0;