From: Marek Olšák <marek.ol...@amd.com>
---
src/gallium/drivers/radeonsi/si_perfcounter.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/gallium/drivers/radeonsi/si_perfcounter.c
b/src/gallium/drivers/radeonsi/si_perfcounter.c
index 96007a5..0ced617 100644
--- a/src/gallium/drivers/radeonsi/si_perfcounter.c
+++ b/src/gallium/drivers/radeonsi/si_perfcounter.c
@@ -595,16 +595,19 @@ static void si_pc_emit_stop(struct r600_common_context
*ctx,
/* Two EOP events are required to make all engines go idle
* (and optional cache flushes executed) before the timestamp
* is written.
+ *
+ * Write 1, because we need to wait for the second EOP event.
*/
radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, 0));
radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_BOTTOM_OF_PIPE_TS) |
EVENT_INDEX(5));
radeon_emit(cs, va);
radeon_emit(cs, (va >> 32) | EOP_DATA_SEL(1));
- radeon_emit(cs, 0); /* immediate data */
+ radeon_emit(cs, 1); /* immediate data */
radeon_emit(cs, 0); /* unused */
}
+ /* Write 0. */
radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, 0));
radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_BOTTOM_OF_PIPE_TS) |
EVENT_INDEX(5));
@@ -613,6 +616,7 @@ static void si_pc_emit_stop(struct r600_common_context *ctx,
radeon_emit(cs, 0); /* immediate data */
radeon_emit(cs, 0); /* unused */
+ /* Wait until the memory location is 0. */
radeon_emit(cs, PKT3(PKT3_WAIT_REG_MEM, 5, 0));
radeon_emit(cs, WAIT_REG_MEM_EQUAL | WAIT_REG_MEM_MEM_SPACE(1));
radeon_emit(cs, va);
--
2.7.4
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
