radeon: Move r600_need_dma_space to common code

Signed-off-by: Niels Ole Salscheider <[email protected]>
Signed-off-by: Marek Olšák <[email protected]>

2 files changed, 11 insertions, 0 deletions

diff --git a/src/gallium/drivers/radeon/r600_pipe_common.c b/src/gallium/drivers/radeon/r600_pipe_common.c
index 05ada1c4bb4..a5c140ab6aa 100644
--- a/src/gallium/drivers/radeon/r600_pipe_common.c
+++ b/src/gallium/drivers/radeon/r600_pipe_common.c
@@ -39,6 +39,16 @@
  * pipe_context
  */
 
+void r600_need_dma_space(struct r600_common_context *ctx, unsigned num_dw)
+{
+	/* The number of dwords we already used in the DMA so far. */
+	num_dw += ctx->rings.dma.cs->cdw;
+	/* Flush if there's not enough space. */
+	if (num_dw > RADEON_MAX_CMDBUF_DWORDS) {
+		ctx->rings.dma.flush(ctx, RADEON_FLUSH_ASYNC);
+	}
+}
+
 static void r600_memory_barrier(struct pipe_context *ctx, unsigned flags)
 {
 }
diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h b/src/gallium/drivers/radeon/r600_pipe_common.h
index 92883a05e6a..1815ff6003a 100644
--- a/src/gallium/drivers/radeon/r600_pipe_common.h
+++ b/src/gallium/drivers/radeon/r600_pipe_common.h
@@ -409,6 +409,7 @@ void r600_screen_clear_buffer(struct r600_common_screen *rscreen, struct pipe_re
 struct pipe_resource *r600_resource_create_common(struct pipe_screen *screen,
 						  const struct pipe_resource *templ);
 const char *r600_get_llvm_processor_name(enum radeon_family family);
+void r600_need_dma_space(struct r600_common_context *ctx, unsigned num_dw);
 
 /* r600_query.c */
 void r600_query_init(struct r600_common_context *rctx);