[Mesa-dev] [PATCH 2/4] radv: Implement waiting on non-submitted fences.

[Bas Nieuwenhuizen]

Fixes: f4e499ec79 "radv: add initial non-conformant radv vulkan driver"
---
 src/amd/vulkan/radv_device.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index ca99ba50ba..3355fd0b4b 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -2964,8 +2964,17 @@ VkResult radv_WaitForFences(
 		if (fence->signalled)
 			continue;
 
-		if (!fence->submitted)
-			return VK_TIMEOUT;
+		if (!fence->submitted) {
+			while(radv_get_current_time() <= timeout && !fence->submitted)
+				/* Do nothing */;
+
+			if (!fence->submitted)
+				return VK_TIMEOUT;
+
+			/* Recheck as it may have been set by submitting operations. */
+			if (fence->signalled)
+				continue;
+		}
 
 		expired = device->ws->fence_wait(device->ws, fence->fence, true, timeout);
 		if (!expired)
-- 
2.16.1