From: Marek Olšák <marek.ol...@amd.com>
State trackers must use a user buffer or const_uploader,
or set pipe_resource::flags same as const_uploader->flags.
---
src/gallium/drivers/radeonsi/si_descriptors.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_descriptors.c
b/src/gallium/drivers/radeonsi/si_descriptors.c
index 17115e1..b372090 100644
--- a/src/gallium/drivers/radeonsi/si_descriptors.c
+++ b/src/gallium/drivers/radeonsi/si_descriptors.c
@@ -1207,20 +1207,26 @@ void si_set_rw_buffer(struct si_context *sctx,
static void si_pipe_set_constant_buffer(struct pipe_context *ctx,
enum pipe_shader_type shader, uint slot,
const struct pipe_constant_buffer
*input)
{
struct si_context *sctx = (struct si_context *)ctx;
if (shader >= SI_NUM_SHADERS)
return;
+ if (slot == 0 && input && input->buffer &&
+ !(r600_resource(input->buffer)->flags & RADEON_FLAG_32BIT)) {
+ assert(!"constant buffer 0 must have a 32-bit VM address, use
const_uploader");
+ return;
+ }
+
slot = si_get_constbuf_slot(slot);
si_set_constant_buffer(sctx, &sctx->const_and_shader_buffers[shader],
si_const_and_shader_buffer_descriptors_idx(shader),
slot, input);
}
void si_get_pipe_constant_buffer(struct si_context *sctx, uint shader,
uint slot, struct pipe_constant_buffer *cbuf)
{
cbuf->user_buffer = NULL;
--
2.7.4
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