ALPHA_PTE_TO_PFN
pteoff = ALPHA_PTE_TO_PFN(pte) * cpu_kh->page_size +
pteoff = ALPHA_PTE_TO_PFN(pte) * cpu_kh->page_size +
*pa = ALPHA_PTE_TO_PFN(pte) * cpu_kh->page_size + page_off;
#define PG_PFNUM(x) ALPHA_PTE_TO_PFN(x)