From fd49b815ce3c3d29559911a9d49f50353f44dea6 Mon Sep 17 00:00:00 2001
From: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Date: Tue, 28 May 2024 18:25:01 +0300
Subject: [PATCH] anv: optimize POSTSYNC_DATA rewrites in timestamp emissions
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Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29438>
---
 src/intel/vulkan/genX_cmd_buffer.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
index f3f83b20745..e8dae143e61 100644
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -5811,8 +5811,10 @@ void genX(cmd_emit_timestamp)(struct anv_batch *batch,
             },
          });
 
-      for (uint32_t i = 0; i < ARRAY_SIZE(dwords); i++)
-         ((uint32_t *)data)[i] |= dwords[i];
+      for (uint32_t i = 0; i < ARRAY_SIZE(dwords); i++) {
+         if (dwords[i])
+            ((uint32_t *)data)[i] |= dwords[i];
+      }
       break;
    }
 
@@ -5831,8 +5833,10 @@ void genX(cmd_emit_timestamp)(struct anv_batch *batch,
             }
       });
 
-      for (uint32_t i = 0; i < ARRAY_SIZE(dwords); i++)
-         ((uint32_t *)data)[i] |= dwords[i];
+      for (uint32_t i = 0; i < ARRAY_SIZE(dwords); i++) {
+         if (dwords[i])
+            ((uint32_t *)data)[i] |= dwords[i];
+      }
       break;
    }
 #endif