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nv50: implement memory barrier handling 

With shader images / buffers, we can get more complex barrier requests.
This mirrors the logic in nvc0.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Pierre Moreau <dev@pmoreau.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9299>
This commit is contained in:
Ilia Mirkin 2021-02-24 19:42:03 -05:00
parent cd296c9f8c
commit 1a6a772527
1 changed files with 17 additions and 0 deletions
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17
src/gallium/drivers/nouveau/nv50/nv50_context.c
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@ -58,6 +58,7 @@ static void
nv50_memory_barrier(struct pipe_context *pipe, unsigned flags)
{
struct nv50_context *nv50 = nv50_context(pipe);
struct nouveau_pushbuf *push = nv50->base.pushbuf;
int i, s;
if (flags & PIPE_BARRIER_MAPPED_BUFFER) {
@ -87,7 +88,23 @@ nv50_memory_barrier(struct pipe_context *pipe, unsigned flags)
nv50->cb_dirty = true;
}
}
} else {
BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
PUSH_DATA (push, 0);
}
/* If we're going to texture from a buffer/image written by a shader, we
* must flush the texture cache.
*/
if (flags & PIPE_BARRIER_TEXTURE) {
BEGIN_NV04(push, NV50_3D(TEX_CACHE_CTL), 1);
PUSH_DATA (push, 0x20);
}
if (flags & PIPE_BARRIER_CONSTANT_BUFFER)
nv50->cb_dirty = true;
if (flags & (PIPE_BARRIER_VERTEX_BUFFER | PIPE_BARRIER_INDEX_BUFFER))
nv50->base.vbo_dirty = true;
}
static void