radeonsi/gfx10: fix ngg_get_ordered_id

This could have caused issues with NGG streamout.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3095>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3095>

src/gallium/drivers/radeonsi/gfx10_shader_ngg.c

@@ -60,7 +60,7 @@ static LLVMValueRef ngg_get_prim_cnt(struct si_shader_context *ctx)
 
 static LLVMValueRef ngg_get_ordered_id(struct si_shader_context *ctx)
 {
-	return si_unpack_param(ctx, ctx->gs_tg_info, 0, 11);
+	return si_unpack_param(ctx, ctx->gs_tg_info, 0, 12);
 }
 
 static LLVMValueRef ngg_get_query_buf(struct si_shader_context *ctx)

src/gallium/drivers/radeonsi/si_shader_internal.h

@@ -181,7 +181,7 @@ struct si_shader_context {
 	struct ac_arg es2gs_offset;
 	/* HW GS */
 	/* On gfx10:
-	 *  - bits 0..10: ordered_wave_id
+	 *  - bits 0..11: ordered_wave_id
 	 *  - bits 12..20: number of vertices in group
 	 *  - bits 22..30: number of primitives in group
 	 */