[Mesa-dev] [PATCH] radv: wait on the high 32 bits of timestamp queries

Samuel Pitoiset samuel.pitoiset at gmail.com
Wed Dec 5 10:45:19 UTC 2018


In case we are unlucky if the low part is 0xffffffff.

Fixes: 5d6a560a29 ("radv: do not use the availability bit for timestamp queries")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
---
 src/amd/vulkan/radv_query.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/amd/vulkan/radv_query.c b/src/amd/vulkan/radv_query.c
index 550abe307a1..8c64c98ffaa 100644
--- a/src/amd/vulkan/radv_query.c
+++ b/src/amd/vulkan/radv_query.c
@@ -1336,8 +1336,11 @@ void radv_CmdCopyQueryPoolResults(
 
 
 			if (flags & VK_QUERY_RESULT_WAIT_BIT) {
+				/* Wait on the high 32 bits of the timestamp in
+				 * case the low part is 0xffffffff.
+				 */
 				radv_cp_wait_mem(cs, WAIT_REG_MEM_NOT_EQUAL,
-						 local_src_va,
+						 local_src_va + 4,
 						 TIMESTAMP_NOT_READY >> 32,
 						 0xffffffff);
 			}
-- 
2.19.2



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