From: Marek Olšák <marek.ol...@amd.com>
---
src/gallium/drivers/radeon/r600_pipe_common.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/src/gallium/drivers/radeon/r600_pipe_common.c
b/src/gallium/drivers/radeon/r600_pipe_common.c
index 3eb12f3..4845587 100644
--- a/src/gallium/drivers/radeon/r600_pipe_common.c
+++ b/src/gallium/drivers/radeon/r600_pipe_common.c
@@ -154,8 +154,14 @@ void r600_need_dma_space(struct r600_common_context *ctx,
unsigned num_dw,
gtt += src->buf->size;
}
- /* Flush the GFX IB if it's not empty. */
- if (ctx->gfx.cs->cdw > ctx->initial_gfx_cs_size)
+ /* Flush the GFX IB if DMA depends on it. */
+ if (ctx->gfx.cs->cdw > ctx->initial_gfx_cs_size &&
+ ((dst &&
+ ctx->ws->cs_is_buffer_referenced(ctx->gfx.cs, dst->buf,
+ RADEON_USAGE_READWRITE)) ||
+ (src &&
+ ctx->ws->cs_is_buffer_referenced(ctx->gfx.cs, src->buf,
+ RADEON_USAGE_WRITE))))
ctx->gfx.flush(ctx, RADEON_FLUSH_ASYNC, NULL);
/* Flush if there's not enough space, or if the memory usage per IB
--
2.7.4
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