diff options
Diffstat (limited to 'include/asm-sparc/page.h')
| -rw-r--r-- | include/asm-sparc/page.h | 137 |
1 files changed, 134 insertions, 3 deletions
diff --git a/include/asm-sparc/page.h b/include/asm-sparc/page.h index 03c9c48fd..23d2aebc2 100644 --- a/include/asm-sparc/page.h +++ b/include/asm-sparc/page.h @@ -1,4 +1,4 @@ -/* $Id: page.h,v 1.30 1996/10/27 08:55:30 davem Exp $ +/* $Id: page.h,v 1.35 1996/12/19 08:08:22 davem Exp $ * page.h: Various defines and such for MMU operations on the Sparc for * the Linux kernel. * @@ -8,6 +8,7 @@ #ifndef _SPARC_PAGE_H #define _SPARC_PAGE_H +#include <linux/config.h> #include <asm/head.h> /* for KERNBASE */ #define PAGE_SHIFT 12 @@ -28,8 +29,8 @@ extern unsigned long page_offset; extern unsigned long (*mmu_v2p)(unsigned long); extern unsigned long (*mmu_p2v)(unsigned long); -#define __pa(x) mmu_v2p(x) -#define __va(x) mmu_p2v(x) +#define __pa(x) mmu_v2p((unsigned long)(x)) +#define __va(x) mmu_p2v((unsigned long)(x)) /* The following structure is used to hold the physical * memory configuration of the machine. This is filled in @@ -88,6 +89,132 @@ typedef struct { unsigned long iopgprot; } iopgprot_t; #define __pgprot(x) ((pgprot_t) { (x) } ) #define __iopgprot(x) ((iopgprot_t) { (x) } ) +#elif CONFIG_AP1000_DEBUG + +typedef struct { unsigned long pte; } pte_t; +typedef struct { unsigned long iopte; } iopte_t; +typedef struct { unsigned long pmd; } pmd_t; +typedef struct { unsigned long pgd; } pgd_t; +typedef struct { unsigned long ctxd; } ctxd_t; +typedef struct { unsigned long pgprot; } pgprot_t; +typedef struct { unsigned long iopgprot; } iopgprot_t; + +static inline unsigned long __get_val(unsigned long x) +{ + if ((x & 0xF0000000) == (8<<28)) + return x & 0x0FFFFFFF; + return x; +} + +static inline unsigned long __set_val(unsigned long x) +{ + if ((x & 0xF0000000) == (0<<28)) + return x | 0x80000000; + return x; +} + +#define __pte_val(x) ((x).pte) +#define __iopte_val(x) ((x).iopte) +#define __pmd_val(x) ((x).pmd) +#define __pgd_val(x) ((x).pgd) +#define __ctxd_val(x) ((x).ctxd) +#define __pgprot_val(x) ((x).pgprot) +#define __iopgprot_val(x) ((x).iopgprot) + +#define ___pte(x) ((pte_t) { (x) } ) +#define ___iopte(x) ((iopte_t) { (x) } ) +#define ___pmd(x) ((pmd_t) { (x) } ) +#define ___pgd(x) ((pgd_t) { (x) } ) +#define ___ctxd(x) ((ctxd_t) { (x) } ) +#define ___pgprot(x) ((pgprot_t) { (x) } ) +#define ___iopgprot(x) ((iopgprot_t) { (x) } ) + + +#define pte_val(x) __get_val(__pte_val(x)) +#define iopte_val(x) __get_val(__iopte_val(x)) +#define pmd_val(x) __get_val(__pmd_val(x)) +#define pgd_val(x) __get_val(__pgd_val(x)) +#define ctxd_val(x) __get_val(__ctxd_val(x)) +#define pgprot_val(x) __get_val(__pgprot_val(x)) +#define iopgprot_val(x) __get_val(__iopgprot_val(x)) + +#define __pte(x) ___pte(__set_val(x)) +#define __iopte(x) ___iopte(__set_val(x)) +#define __pmd(x) ___pmd(__set_val(x)) +#define __pgd(x) ___pgd(__set_val(x)) +#define __ctxd(x) ___ctxd(__set_val(x)) +#define __pgprot(x) ___pgprot(x) +#define __iopgprot(x) ___iopgprot(__set_val(x)) + +#elif CONFIG_AP1000 + +typedef unsigned long pte_t; +typedef unsigned long iopte_t; +typedef unsigned long pmd_t; +typedef unsigned long pgd_t; +typedef unsigned long ctxd_t; +typedef unsigned long pgprot_t; +typedef unsigned long iopgprot_t; + +static inline unsigned long __get_val(unsigned long x) +{ +#if 0 + extern void ap_panic(char *fmt,...); + if (x && (x & 0xF0000000) == 0) { + ap_panic("get_val got 0x%x\n",x); + } +#endif + if ((x & 0xF0000000) == (8<<28)) + return x & 0x0FFFFFFF; + return x; +} + +static inline unsigned long __set_val(unsigned long x) +{ +#if 0 + extern void ap_panic(char *fmt,...); + if ((x & 0xF0000000) == (8<<28)) { + ap_panic("set_val got 0x%x\n",x); + } +#endif + if ((x & 0xF0000000) == (0<<28)) + return x | 0x80000000; + return x; +} + +#define __pte_val(x) (x) +#define __iopte_val(x) (x) +#define __pmd_val(x) (x) +#define __pgd_val(x) (x) +#define __ctxd_val(x) (x) +#define __pgprot_val(x) (x) +#define __iopgprot_val(x) (x) + +#define ___pte(x) ((pte_t) { (x) } ) +#define ___iopte(x) ((iopte_t) { (x) } ) +#define ___pmd(x) ((pmd_t) { (x) } ) +#define ___pgd(x) ((pgd_t) { (x) } ) +#define ___ctxd(x) ((ctxd_t) { (x) } ) +#define ___pgprot(x) ((pgprot_t) { (x) } ) +#define ___iopgprot(x) ((iopgprot_t) { (x) } ) + + +#define pte_val(x) __get_val(__pte_val(x)) +#define iopte_val(x) __get_val(__iopte_val(x)) +#define pmd_val(x) __get_val(__pmd_val(x)) +#define pgd_val(x) __get_val(__pgd_val(x)) +#define ctxd_val(x) __get_val(__ctxd_val(x)) +#define pgprot_val(x) __get_val(__pgprot_val(x)) +#define iopgprot_val(x) __get_val(__iopgprot_val(x)) + +#define __pte(x) ___pte(__set_val(x)) +#define __iopte(x) ___iopte(__set_val(x)) +#define __pmd(x) ___pmd(__set_val(x)) +#define __pgd(x) ___pgd(__set_val(x)) +#define __ctxd(x) ___ctxd(__set_val(x)) +#define __pgprot(x) ___pgprot(x) +#define __iopgprot(x) ___iopgprot(__set_val(x)) + #else /* * .. while these make it easier on the compiler @@ -130,6 +257,10 @@ extern unsigned long sparc_unmapped_base; */ #define MAP_NR(addr) ((((unsigned long) (addr)) - PAGE_OFFSET) >> PAGE_SHIFT) +#else /* !(__ASSEMBLY__) */ + +#define __pgprot(x) (x) + #endif /* !(__ASSEMBLY__) */ #endif /* __KERNEL__ */ |