From: Alex Deucher <alexander.deuc...@amd.com>
PS_PARTIAL flushes seems to be required in certain
cases to prevent hangs, especially on r6xx.
Note: this is a candidate for the 9.1 branch.
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
src/gallium/drivers/r600/r600.h | 1 +
src/gallium/drivers/r600/r600_hw_context.c | 5 +++++
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/src/gallium/drivers/r600/r600.h b/src/gallium/drivers/r600/r600.h
index 08b77e4..11dbb3b 100644
--- a/src/gallium/drivers/r600/r600.h
+++ b/src/gallium/drivers/r600/r600.h
@@ -151,6 +151,7 @@ struct r600_so_target {
#define R600_CONTEXT_WAIT_CP_DMA_IDLE (1 << 3)
#define R600_CONTEXT_FLUSH_AND_INV (1 << 4)
#define R600_CONTEXT_FLUSH_AND_INV_CB_META (1 << 5)
+#define R600_CONTEXT_PS_PARTIAL_FLUSH (1 << 6)
struct r600_context;
struct r600_screen;
diff --git a/src/gallium/drivers/r600/r600_hw_context.c
b/src/gallium/drivers/r600/r600_hw_context.c
index f6dc418..09dc98b 100644
--- a/src/gallium/drivers/r600/r600_hw_context.c
+++ b/src/gallium/drivers/r600/r600_hw_context.c
@@ -624,6 +624,11 @@ void r600_flush_emit(struct r600_context *rctx)
return;
}
+ if (rctx->flags & R600_CONTEXT_PS_PARTIAL_FLUSH) {
+ cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
+ cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PS_PARTIAL_FLUSH) |
EVENT_INDEX(4);
+ }
+
if (rctx->flags & R600_CONTEXT_WAIT_3D_IDLE) {
wait_until |= S_008040_WAIT_3D_IDLE(1);
}
--
1.7.7.5
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