nvk/query: Pass an IS_TIMESTAMP flag explicitly to the CL kernel

This is more robust than looking at the report stride.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33959>

src/nouveau/vulkan/cl/nvk_query.cl

@@ -26,7 +26,7 @@ nvk_copy_queries(uint64_t pool_addr, uint query_start, uint query_stride,
    uint64_t dst_offset = dst_stride * (uint64_t)i;
    uint num_reports = 1;
 
-   if (query_stride == sizeof(struct nvk_query_report)) {
+   if (flags & NVK_QUERY_IS_TIMESTAMP) {
       /* Timestamp queries are the only ones use a single report */
       if (write_results) {
          vk_write_query(dst_addr + dst_offset, 0, flags, report->timestamp);

src/nouveau/vulkan/cl/nvk_query.h

@@ -6,6 +6,8 @@
 
 #include "compiler/libcl/libcl.h"
 
+#define NVK_QUERY_IS_TIMESTAMP 0x80000000u
+
 struct nvk_query_report {
    uint64_t value;
    uint64_t timestamp;

src/nouveau/vulkan/nvk_query_pool.c

@@ -796,6 +796,9 @@ nvk_meta_copy_query_pool_results(struct nvk_cmd_buffer *cmd,
       return;
    }
 
+   if (pool->vk.query_type == VK_QUERY_TYPE_TIMESTAMP)
+      flags |= NVK_QUERY_IS_TIMESTAMP;
+
    const struct nvk_copy_query_push push = {
       .pool_addr = pool->mem->va->addr,
       .query_start = pool->query_start,