[Mesa-dev] [PATCH] radv: Emit pending flushes before executing a secondary command buffer

[Alex Smith]

If we have any pending flushes on the primary command buffer, these
must be performed before executing the secondary buffer.

This fixes potential corruption when the contents of a subpass which
clears any of its render targets are given in a secondary buffer: the
flushes after a fast clear would not have been performed until the
vkCmdEndRenderPass call.

Signed-off-by: Alex Smith <asmith at feralinteractive.com>
---
 src/amd/vulkan/radv_cmd_buffer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/amd/vulkan/radv_cmd_buffer.c b/src/amd/vulkan/radv_cmd_buffer.c
index 3ff5250..d99288a 100644
--- a/src/amd/vulkan/radv_cmd_buffer.c
+++ b/src/amd/vulkan/radv_cmd_buffer.c
@@ -2110,6 +2110,9 @@ void radv_CmdExecuteCommands(
 {
 	RADV_FROM_HANDLE(radv_cmd_buffer, primary, commandBuffer);
 
+	/* Emit pending flushes on primary prior to executing secondary */
+	si_emit_cache_flush(primary);
+
 	for (uint32_t i = 0; i < commandBufferCount; i++) {
 		RADV_FROM_HANDLE(radv_cmd_buffer, secondary, pCmdBuffers[i]);
 
-- 
2.7.4