gallium: add writable_bitmask parameter into set_shader_buffers

to indicate write usage per buffer.
This is just a hint (it will be used by radeonsi).

Reviewed-by: Timothy Arceri <[email protected]>

1 files changed, 7 insertions, 3 deletions

diff --git a/src/gallium/auxiliary/util/u_threaded_context.c b/src/gallium/auxiliary/util/u_threaded_context.c
index bd2c8f57a10..fc448908564 100644
--- a/src/gallium/auxiliary/util/u_threaded_context.c
+++ b/src/gallium/auxiliary/util/u_threaded_context.c
@@ -890,6 +890,7 @@ tc_set_shader_images(struct pipe_context *_pipe,
 struct tc_shader_buffers {
    ubyte shader, start, count;
    bool unbind;
+   unsigned writable_bitmask;
    struct pipe_shader_buffer slot[0]; /* more will be allocated if needed */
 };
 
@@ -900,11 +901,12 @@ tc_call_set_shader_buffers(struct pipe_context *pipe, union tc_payload *payload)
    unsigned count = p->count;
 
    if (p->unbind) {
-      pipe->set_shader_buffers(pipe, p->shader, p->start, p->count, NULL);
+      pipe->set_shader_buffers(pipe, p->shader, p->start, p->count, NULL, 0);
       return;
    }
 
-   pipe->set_shader_buffers(pipe, p->shader, p->start, p->count, p->slot);
+   pipe->set_shader_buffers(pipe, p->shader, p->start, p->count, p->slot,
+                            p->writable_bitmask);
 
    for (unsigned i = 0; i < count; i++)
       pipe_resource_reference(&p->slot[i].buffer, NULL);
@@ -914,7 +916,8 @@ static void
 tc_set_shader_buffers(struct pipe_context *_pipe,
                       enum pipe_shader_type shader,
                       unsigned start, unsigned count,
-                      const struct pipe_shader_buffer *buffers)
+                      const struct pipe_shader_buffer *buffers,
+                      unsigned writable_bitmask)
 {
    if (!count)
       return;
@@ -928,6 +931,7 @@ tc_set_shader_buffers(struct pipe_context *_pipe,
    p->start = start;
    p->count = count;
    p->unbind = buffers == NULL;
+   p->writable_bitmask = writable_bitmask;
 
    if (buffers) {
       for (unsigned i = 0; i < count; i++) {