On Sun, 24 Sep 2006 14:39:38 +0900, girish <girishvg@xxxxxxxxx> wrote:
> --- linux-vanilla/include/asm-mips/page.h 2006-09-24 12:23:34.000000000 +0900
> +++ linux/include/asm-mips/page.h 2006-09-24 14:00:53.000000000 +0900
> @@ -134,8 +134,13 @@ typedef struct { unsigned long pgprot; }
> /* to align the pointer to the (next) page boundary */
> #define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
>
> -#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
> -#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
> +#define UNMAPLIMIT (UNCAC_BASE - CAC_BASE) /*HIGHMEM_START*/
> +#define ISMAPPED(x) (KSEGX((x)) > UNMAPLIMIT)
> +#define ___pa(x) ((unsigned long) (x) - PAGE_OFFSET)
> +#define __pa(x) (ISMAPPED(x) ? (x) : ___pa(x))
> +
> +#define ___va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
> +#define __va(x) (ISMAPPED(x) ? (x) : ___va(x))
>
> #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
This part looks broken for 64-bit kernel.
For other parts, it would be better to keep correct indentation level.
---
Atsushi Nemoto
