#define ptoa(x) ((vm_offset_t)((x) << PAGE_SHIFT))
/*
* Round off or truncate to the nearest page. These will work
* for either addresses or counts (i.e., 1 byte rounds to 1 page).
*/
#define ptoa(x) ((vm_offset_t)((x) << PAGE_SHIFT))
/*
* Round off or truncate to the nearest page. These will work
* for either addresses or counts (i.e., 1 byte rounds to 1 page).
*/