[Mesa-dev] [PATCH 19/23] radv: Use RELEASE_MEM packet for MEC timestamp query.

[Bas Nieuwenhuizen]

Signed-off-by: Bas Nieuwenhuizen <ba...@google.com>
---
 src/amd/common/sid.h        |  1 +
 src/amd/vulkan/radv_query.c | 29 ++++++++++++++++++++---------
 2 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/src/amd/common/sid.h b/src/amd/common/sid.h
index 3b3983fe27..0a2c616e64 100644
--- a/src/amd/common/sid.h
+++ b/src/amd/common/sid.h
@@ -156,6 +156,7 @@
  * DST_SEL=MC. Only CIK chips are affected.
  */
 /*#define PKT3_EVENT_WRITE_EOS                   0x48*/ /* fix CP DMA before 
uncommenting */
+#define PKT3_RELEASE_MEM                       0x49
 #define PKT3_ONE_REG_WRITE                     0x57 /* not on CIK */
 #define PKT3_ACQUIRE_MEM                       0x58 /* new for CIK */
 #define PKT3_SET_CONFIG_REG                    0x68
diff --git a/src/amd/vulkan/radv_query.c b/src/amd/vulkan/radv_query.c
index 185968689a..06762dee08 100644
--- a/src/amd/vulkan/radv_query.c
+++ b/src/amd/vulkan/radv_query.c
@@ -387,6 +387,7 @@ void radv_CmdWriteTimestamp(
 {
        RADV_FROM_HANDLE(radv_cmd_buffer, cmd_buffer, commandBuffer);
        RADV_FROM_HANDLE(radv_query_pool, pool, queryPool);
+       bool mec = radv_cmd_buffer_uses_mec(cmd_buffer);
        struct radeon_winsys_cs *cs = cmd_buffer->cs;
        uint64_t va = cmd_buffer->device->ws->buffer_get_va(pool->bo);
        uint64_t avail_va = va + pool->availability_offset + 4 * query;
@@ -394,17 +395,27 @@ void radv_CmdWriteTimestamp(
 
        cmd_buffer->device->ws->cs_add_buffer(cs, pool->bo, 5);
 
-       MAYBE_UNUSED unsigned cdw_max = 
radeon_check_space(cmd_buffer->device->ws, cs, 11);
-
-       radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, 0));
-       radeon_emit(cs, EVENT_TYPE(V_028A90_BOTTOM_OF_PIPE_TS) | 
EVENT_INDEX(5));
-       radeon_emit(cs, query_va);
-       radeon_emit(cs, (3 << 29) | ((query_va >> 32) & 0xFFFF));
-       radeon_emit(cs, 0);
-       radeon_emit(cs, 0);
+       MAYBE_UNUSED unsigned cdw_max = 
radeon_check_space(cmd_buffer->device->ws, cs, 12);
+
+       if (mec) {
+               radeon_emit(cs, PKT3(PKT3_RELEASE_MEM, 5, 0));
+               radeon_emit(cs, EVENT_TYPE(V_028A90_BOTTOM_OF_PIPE_TS) | 
EVENT_INDEX(5));
+               radeon_emit(cs, 3 << 29);
+               radeon_emit(cs, query_va);
+               radeon_emit(cs, query_va >> 32);
+               radeon_emit(cs, 0);
+               radeon_emit(cs, 0);
+       } else {
+               radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, 0));
+               radeon_emit(cs, EVENT_TYPE(V_028A90_BOTTOM_OF_PIPE_TS) | 
EVENT_INDEX(5));
+               radeon_emit(cs, query_va);
+               radeon_emit(cs, (3 << 29) | ((query_va >> 32) & 0xFFFF));
+               radeon_emit(cs, 0);
+               radeon_emit(cs, 0);
+       }
 
        radeon_emit(cs, PKT3(PKT3_WRITE_DATA, 3, 0));
-       radeon_emit(cs, S_370_DST_SEL(V_370_MEMORY_SYNC) |
+       radeon_emit(cs, S_370_DST_SEL(mec ? V_370_MEM_ASYNC : 
V_370_MEMORY_SYNC) |
                    S_370_WR_CONFIRM(1) |
                    S_370_ENGINE_SEL(V_370_ME));
        radeon_emit(cs, avail_va);
-- 
2.11.0

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