gem_mmap_gtt.c: In function ‘test_huge_copy’:
gem_mmap_gtt.c:589:4: warning: passing argument 2 of ‘copy_wc_page’ from incompatible pointer type [enabled by default]
    copy_wc_page(page, a + PAGE_SIZE*i);
    ^
gem_mmap_gtt.c:503:13: note: expected ‘const uint32_t *’ but argument is of type ‘char *’
 static void copy_wc_page(uint32_t *dst, const uint32_t *src)
             ^
gem_mmap_gtt.c:601:4: warning: passing argument 2 of ‘copy_wc_page’ from incompatible pointer type [enabled by default]
    copy_wc_page(page, b + PAGE_SIZE*i);
    ^
gem_mmap_gtt.c:503:13: note: expected ‘const uint32_t *’ but argument is of type ‘char *’
 static void copy_wc_page(uint32_t *dst, const uint32_t *src)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>