radeonsi: align shader binaries to CP DMA alignment for optimal prefetch

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index eb2efbb..7b89014 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -5748,7 +5748,8 @@ int si_shader_binary_upload(struct si_screen *sscreen, struct si_shader *shader)
        r600_resource_reference(&shader->bo, NULL);
        shader->bo = (struct r600_resource*)
                     pipe_buffer_create(&sscreen->b.b, 0,
-                                       PIPE_USAGE_IMMUTABLE, bo_size);
+                                       PIPE_USAGE_IMMUTABLE,
+                                       align(bo_size, SI_CPDMA_ALIGNMENT));
        if (!shader->bo)
                return -ENOMEM;