radeonsi/gfx9: don't overallocate shader binaries

It's not needed. The hw doesn't fetch ahead over page boundaries.

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 ecc51a3..6c887dd 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -4760,12 +4760,6 @@ int si_shader_binary_upload(struct si_screen *sscreen, struct si_shader *shader)
               !mainb->rodata_size);
        assert(!epilog || !epilog->rodata_size);
 
-       /* GFX9 can fetch at most 128 bytes past the end of the shader.
-        * Prevent VM faults.
-        */
-       if (sscreen->b.chip_class >= GFX9)
-               bo_size += 128;
-
        r600_resource_reference(&shader->bo, NULL);
        shader->bo = (struct r600_resource*)
                     pipe_buffer_create(&sscreen->b.b, 0,