diff options
| author | Marek Olšák <[email protected]> | 2016-04-28 18:06:55 +0200 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2016-05-10 17:20:09 +0200 |
| commit | 2b58bc44615c2ac61a0ff35cc69c8aae2b501083 (patch) | |
| tree | bf24a09a51b68fe8f24e0b61bf93044b2c6d411c | |
| parent | fb89f066983eb3799bb05e2570dbbf66639f4818 (diff) | |
gallium/radeon: don't flush the GFX IB if DMA doesn't depend on it
Reviewed-by: Alex Deucher <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
| -rw-r--r-- | src/gallium/drivers/radeon/r600_pipe_common.c | 10 |
1 files 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 6cbc92bb5f4..a5966d95d97 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 |