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authorMarek Olšák <marek.olsak@amd.com>2017-05-15 17:27:25 +0200
committerMarek Olšák <marek.olsak@amd.com>2017-05-17 20:28:44 +0200
commitbd4b224fa6630262df2b70fd6a6fc8080ad59086 (patch)
tree37c1bbabea7f1c3b5e504d6ef886ddb6d1aab0df
parent4f50c91c329025dc73002e19f7679e4826bb12fa (diff)
gallium/radeon: use a top-of-pipe timestamp for the start of TIME_ELAPSED
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
-rw-r--r--src/amd/common/r600d_common.h11
-rw-r--r--src/gallium/drivers/radeon/r600_query.c21
2 files changed, 30 insertions, 2 deletions
diff --git a/src/amd/common/r600d_common.h b/src/amd/common/r600d_common.h
index 3fdfb7c695..3374475336 100644
--- a/src/amd/common/r600d_common.h
+++ b/src/amd/common/r600d_common.h
@@ -54,6 +54,17 @@
#define PKT3_WAIT_REG_MEM 0x3C
#define WAIT_REG_MEM_EQUAL 3
#define WAIT_REG_MEM_MEM_SPACE(x) (((unsigned)(x) & 0x3) << 4)
+#define PKT3_COPY_DATA 0x40
+#define COPY_DATA_SRC_SEL(x) ((x) & 0xf)
+#define COPY_DATA_REG 0
+#define COPY_DATA_MEM 1
+#define COPY_DATA_PERF 4
+#define COPY_DATA_IMM 5
+#define COPY_DATA_TIMESTAMP 9
+#define COPY_DATA_DST_SEL(x) (((unsigned)(x) & 0xf) << 8)
+#define COPY_DATA_MEM_ASYNC 5
+#define COPY_DATA_COUNT_SEL (1 << 16)
+#define COPY_DATA_WR_CONFIRM (1 << 20)
#define PKT3_EVENT_WRITE 0x46
#define PKT3_EVENT_WRITE_EOP 0x47
#define EOP_DATA_SEL(x) ((x) << 29)
diff --git a/src/gallium/drivers/radeon/r600_query.c b/src/gallium/drivers/radeon/r600_query.c
index 9878745edc..61fd6626b9 100644
--- a/src/gallium/drivers/radeon/r600_query.c
+++ b/src/gallium/drivers/radeon/r600_query.c
@@ -689,8 +689,25 @@ static void r600_query_hw_do_emit_start(struct r600_common_context *ctx,
radeon_emit(cs, va >> 32);
break;
case PIPE_QUERY_TIME_ELAPSED:
- r600_gfx_write_event_eop(ctx, EVENT_TYPE_BOTTOM_OF_PIPE_TS,
- 0, 3, NULL, va, 0, 0);
+ if (ctx->chip_class >= SI) {
+ /* Write the timestamp from the CP not waiting for
+ * outstanding draws (top-of-pipe).
+ */
+ radeon_emit(cs, PKT3(PKT3_COPY_DATA, 4, 0));
+ radeon_emit(cs, COPY_DATA_COUNT_SEL |
+ COPY_DATA_SRC_SEL(COPY_DATA_TIMESTAMP) |
+ COPY_DATA_DST_SEL(COPY_DATA_MEM_ASYNC));
+ radeon_emit(cs, 0);
+ radeon_emit(cs, 0);
+ radeon_emit(cs, va);
+ radeon_emit(cs, va >> 32);
+ } else {
+ /* Write the timestamp after the last draw is done.
+ * (bottom-of-pipe)
+ */
+ r600_gfx_write_event_eop(ctx, EVENT_TYPE_BOTTOM_OF_PIPE_TS,
+ 0, 3, NULL, va, 0, 0);
+ }
break;
case PIPE_QUERY_PIPELINE_STATISTICS:
radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 2, 0));