[Mesa-stable] [PATCH 4/5] radeonsi: update a comment for merged shaders

[Nicolai Hähnle]

From: Nicolai Hähnle <nicolai.haehnle at amd.com>

---
 src/gallium/drivers/radeonsi/si_shader.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 91f2ea3..af93ca1 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -7344,29 +7344,33 @@ int si_shader_create(struct si_screen *sscreen, LLVMTargetMachineRef tm,
 	 * workaround must be applied.
 	 */
 	if (shader->is_monolithic) {
 		/* Monolithic shader (compiled as a whole, has many variants,
 		 * may take a long time to compile).
 		 */
 		r = si_compile_tgsi_shader(sscreen, tm, shader, true, debug);
 		if (r)
 			return r;
 	} else {
-		/* The shader consists of 2-3 parts:
+		/* The shader consists of several parts:
 		 *
 		 * - the middle part is the user shader, it has 1 variant only
 		 *   and it was compiled during the creation of the shader
 		 *   selector
 		 * - the prolog part is inserted at the beginning
 		 * - the epilog part is inserted at the end
 		 *
 		 * The prolog and epilog have many (but simple) variants.
+		 *
+		 * Starting with gfx9, geometry and tessellation control
+		 * shaders also contain the prolog and user shader parts of
+		 * the previous shader stage.
 		 */
 
 		/* Copy the compiled TGSI shader data over. */
 		shader->is_binary_shared = true;
 		shader->binary = mainp->binary;
 		shader->config = mainp->config;
 		shader->info.num_input_sgprs = mainp->info.num_input_sgprs;
 		shader->info.num_input_vgprs = mainp->info.num_input_vgprs;
 		shader->info.face_vgpr_index = mainp->info.face_vgpr_index;
 		memcpy(shader->info.vs_output_param_offset,
-- 
2.9.3