drm/ttm: use drm calloc large and free large

Now that the drm core can do this, lets just use it, split the code out
so TTM doesn't have to drag all of drmP.h in.

Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 4a3c4e4..de2f82e 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1545,39 +1545,7 @@
 {
 }
 
-
-static __inline__ void *drm_calloc_large(size_t nmemb, size_t size)
-{
-	if (size != 0 && nmemb > ULONG_MAX / size)
-		return NULL;
-
-	if (size * nmemb <= PAGE_SIZE)
-	    return kcalloc(nmemb, size, GFP_KERNEL);
-
-	return __vmalloc(size * nmemb,
-			 GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, PAGE_KERNEL);
-}
-
-/* Modeled after cairo's malloc_ab, it's like calloc but without the zeroing. */
-static __inline__ void *drm_malloc_ab(size_t nmemb, size_t size)
-{
-	if (size != 0 && nmemb > ULONG_MAX / size)
-		return NULL;
-
-	if (size * nmemb <= PAGE_SIZE)
-	    return kmalloc(nmemb * size, GFP_KERNEL);
-
-	return __vmalloc(size * nmemb,
-			 GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL);
-}
-
-static __inline void drm_free_large(void *ptr)
-{
-	if (!is_vmalloc_addr(ptr))
-		return kfree(ptr);
-
-	vfree(ptr);
-}
+#include "drm_mem_util.h"
 /*@}*/
 
 #endif				/* __KERNEL__ */