radeonsi: don't flush CB/DB caches for performance counters

I'm not sure about this. This will make the engines go idle, but the caches
will be unflushed. This should match app behavior without performance
counters, which can be a good thing.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_perfcounter.c b/src/gallium/drivers/radeonsi/si_perfcounter.c
index 24855e4..04da197 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_perfcounter.c
+++ b/src/gallium/drivers/radeonsi/si_perfcounter.c
@@ -591,9 +591,12 @@ static void si_pc_emit_stop(struct r600_common_context *ctx,
        struct radeon_winsys_cs *cs = ctx->gfx.cs;
 
        if (ctx->screen->chip_class == CIK) {
-               /* Workaround for cache flush problems: send two EOP events. */
+               /* Two EOP events are required to make all engines go idle
+                * (and optional cache flushes executed) before the timestamp
+                * is written.
+                */
                radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, 0));
-               radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_TS_EVENT) |
+               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));
@@ -602,7 +605,7 @@ static void si_pc_emit_stop(struct r600_common_context *ctx,
        }
 
        radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, 0));
-       radeon_emit(cs, EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_TS_EVENT) |
+       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));