diff options
Diffstat (limited to 'src/gallium/drivers/vc4/vc4_context.c')
| -rw-r--r-- | src/gallium/drivers/vc4/vc4_context.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc4/vc4_context.c b/src/gallium/drivers/vc4/vc4_context.c index 6799e7ebf61..11e42a3ad91 100644 --- a/src/gallium/drivers/vc4/vc4_context.c +++ b/src/gallium/drivers/vc4/vc4_context.c @@ -248,6 +248,54 @@ vc4_pipe_flush(struct pipe_context *pctx, struct pipe_fence_handle **fence, vc4_flush(pctx); } +/** + * Flushes the current command lists if they reference the given BO. + * + * This helps avoid flushing the command buffers when unnecessary. + */ +void +vc4_flush_for_bo(struct pipe_context *pctx, struct vc4_bo *bo) +{ + struct vc4_context *vc4 = vc4_context(pctx); + + if (!vc4->needs_flush) + return; + + /* Walk all the referenced BOs in the drawing command list to see if + * they match. + */ + struct vc4_bo **referenced_bos = vc4->bo_pointers.base; + for (int i = 0; i < (vc4->bo_handles.next - + vc4->bo_handles.base) / 4; i++) { + if (referenced_bos[i] == bo) { + vc4_flush(pctx); + return; + } + } + + /* Also check for the Z/color buffers, since the references to those + * are only added immediately before submit. + */ + struct vc4_surface *csurf = vc4_surface(vc4->framebuffer.cbufs[0]); + if (csurf) { + struct vc4_resource *ctex = vc4_resource(csurf->base.texture); + if (ctex->bo == bo) { + vc4_flush(pctx); + return; + } + } + + struct vc4_surface *zsurf = vc4_surface(vc4->framebuffer.zsbuf); + if (zsurf) { + struct vc4_resource *ztex = + vc4_resource(zsurf->base.texture); + if (ztex->bo == bo) { + vc4_flush(pctx); + return; + } + } +} + static void vc4_context_destroy(struct pipe_context *pctx) { |