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r600,compute: Reserve vtx 3 for kernel arguments 

Using vtx 0 does not work for dynamic offsets.

v2: add explanatory comment

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
This commit is contained in:
Jan Vesely 2016-06-25 22:06:09 -04:00
parent 33eddde4a7
commit 489bb5473b
1 changed files with 7 additions and 3 deletions
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10
src/gallium/drivers/r600/evergreen_compute.c
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@ -369,7 +369,11 @@ static void evergreen_compute_upload_input(struct pipe_context *ctx,
ctx->transfer_unmap(ctx, transfer);
/* ID=0 is reserved for the parameters */
/* ID=0 and ID=3 are reserved for the parameters.
* LLVM will preferably use ID=0, but it does not work for dynamic
* indices. */
evergreen_cs_set_vertex_buffer(rctx, 3, 0,
(struct pipe_resource*)shader->kernel_param);
evergreen_cs_set_constant_buffer(rctx, 0, 0, input_size,
(struct pipe_resource*)shader->kernel_param);
}
@ -615,9 +619,9 @@ static void evergreen_set_compute_resources(struct pipe_context *ctx,
start, count);
for (unsigned i = 0; i < count; i++) {
/* The First three vertex buffers are reserved for parameters and
/* The First four vertex buffers are reserved for parameters and
* global buffers. */
unsigned vtx_id = 3 + i;
unsigned vtx_id = 4 + i;
if (resources[i]) {
struct r600_resource_global *buffer =
(struct r600_resource_global*)