From: Jan Vesely Date: Sun, 26 Jun 2016 02:06:09 +0000 (-0400) Subject: r600,compute: Reserve vtx 3 for kernel arguments X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=489bb5473b96a22ae445107297b66bc38b4701f7;p=mesa.git 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 Reviewed-by: Tom Stellard --- diff --git a/src/gallium/drivers/r600/evergreen_compute.c b/src/gallium/drivers/r600/evergreen_compute.c index 6dd6e748a1b..b711786da29 100644 --- a/src/gallium/drivers/r600/evergreen_compute.c +++ b/src/gallium/drivers/r600/evergreen_compute.c @@ -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*)