3 files changed, 18 insertions, 2 deletions

diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index 1553088aa21..71c4a4b9d85 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -1513,7 +1513,7 @@ void evergreen_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader
 	rstate->nregs = 0;
 
 	for (i = 0; i < rshader->ninput; i++) {
-		tmp = S_028644_SEMANTIC(i);
+		tmp = S_028644_SEMANTIC(r600_find_vs_semantic_index2(&rctx->vs_shader->shader, rshader, i));
 		tmp |= S_028644_SEL_CENTROID(1);
 		if (rshader->input[i].name == TGSI_SEMANTIC_POSITION)
 			have_pos = TRUE;
diff --git a/src/gallium/drivers/r600/r600_pipe.h b/src/gallium/drivers/r600/r600_pipe.h
index 4ca83a42d77..5abf910c81c 100644
--- a/src/gallium/drivers/r600/r600_pipe.h
+++ b/src/gallium/drivers/r600/r600_pipe.h
@@ -149,6 +149,8 @@ void r600_translate_index_buffer2(struct r600_pipe_context *r600,
 					struct pipe_resource **index_buffer,
 					unsigned *index_size,
 					unsigned *start, unsigned count);
+int r600_find_vs_semantic_index2(struct r600_shader *vs,
+				struct r600_shader *ps, int id);
 
 /* evergreen_state.c */
 void evergreen_init_state_functions2(struct r600_pipe_context *rctx);
diff --git a/src/gallium/drivers/r600/r600_state2.c b/src/gallium/drivers/r600/r600_state2.c
index 06a6f0d80cc..a88426fc9a4 100644
--- a/src/gallium/drivers/r600/r600_state2.c
+++ b/src/gallium/drivers/r600/r600_state2.c
@@ -104,6 +104,20 @@ static void r600_pipe_shader_vs(struct pipe_context *ctx, struct r600_pipe_shade
 			0x00000000, 0xFFFFFFFF, shader->bo);
 }
 
+int r600_find_vs_semantic_index2(struct r600_shader *vs,
+				struct r600_shader *ps, int id)
+{
+	struct r600_shader_io *input = &ps->input[id];
+
+	for (int i = 0; i < vs->noutput; i++) {
+		if (input->name == vs->output[i].name &&
+			input->sid == vs->output[i].sid) {
+			return i - 1;
+		}
+	}
+	return 0;
+}
+
 static void r600_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shader *shader)
 {
 	struct r600_pipe_context *rctx = (struct r600_pipe_context *)ctx;
@@ -116,7 +130,7 @@ static void r600_pipe_shader_ps(struct pipe_context *ctx, struct r600_pipe_shade
 	rstate->nregs = 0;
 
 	for (i = 0; i < rshader->ninput; i++) {
-		tmp = S_028644_SEMANTIC(i);
+		tmp = S_028644_SEMANTIC(r600_find_vs_semantic_index2(&rctx->vs_shader->shader, rshader, i));
 		tmp |= S_028644_SEL_CENTROID(1);
 		if (rshader->input[i].name == TGSI_SEMANTIC_POSITION)
 			have_pos = TRUE;