[Mesa-dev] [PATCH 06/17] radeonsi: unbind disabled shader stages to prevent useless L2 prefetches

[Marek Olšák]

From: Marek Olšák <marek.ol...@amd.com>

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

diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c 
b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 010ce15..b3616dc 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -2432,27 +2432,33 @@ bool si_update_shaders(struct si_context *sctx)
                        /* TES as VS */
                        si_pm4_bind_state(sctx, vs, 
sctx->tes_shader.current->pm4);
                        si_update_so(sctx, sctx->tes_shader.cso);
                }
        } else if (sctx->gs_shader.cso) {
                /* VS as ES */
                r = si_shader_select(ctx, &sctx->vs_shader, &compiler_state);
                if (r)
                        return false;
                si_pm4_bind_state(sctx, es, sctx->vs_shader.current->pm4);
+
+               si_pm4_bind_state(sctx, ls, NULL);
+               si_pm4_bind_state(sctx, hs, NULL);
        } else {
                /* VS as VS */
                r = si_shader_select(ctx, &sctx->vs_shader, &compiler_state);
                if (r)
                        return false;
                si_pm4_bind_state(sctx, vs, sctx->vs_shader.current->pm4);
                si_update_so(sctx, sctx->vs_shader.cso);
+
+               si_pm4_bind_state(sctx, ls, NULL);
+               si_pm4_bind_state(sctx, hs, NULL);
        }
 
        /* Update GS. */
        if (sctx->gs_shader.cso) {
                r = si_shader_select(ctx, &sctx->gs_shader, &compiler_state);
                if (r)
                        return false;
                si_pm4_bind_state(sctx, gs, sctx->gs_shader.current->pm4);
                si_pm4_bind_state(sctx, vs, 
sctx->gs_shader.cso->gs_copy_shader->pm4);
                si_update_so(sctx, sctx->gs_shader.cso);
-- 
2.7.4

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