diff options
Diffstat (limited to 'arch/sparc/include/asm/pgtsrmmu.h')
| -rw-r--r-- | arch/sparc/include/asm/pgtsrmmu.h | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h index 6067925972d9..a265822a475e 100644 --- a/arch/sparc/include/asm/pgtsrmmu.h +++ b/arch/sparc/include/asm/pgtsrmmu.h @@ -10,7 +10,7 @@ #include <asm/page.h> -#ifdef __ASSEMBLY__ +#ifdef __ASSEMBLER__ #include <asm/thread_info.h> /* TI_UWINMASK for WINDOW_FLUSH */ #endif @@ -53,21 +53,13 @@ #define SRMMU_CHG_MASK (0xffffff00 | SRMMU_REF | SRMMU_DIRTY) -/* SRMMU swap entry encoding - * - * We use 5 bits for the type and 19 for the offset. This gives us - * 32 swapfiles of 4GB each. Encoding looks like: - * - * oooooooooooooooooootttttRRRRRRRR - * fedcba9876543210fedcba9876543210 - * - * The bottom 7 bits are reserved for protection and status bits, especially - * PRESENT. - */ +/* SRMMU swap entry encoding */ #define SRMMU_SWP_TYPE_MASK 0x1f #define SRMMU_SWP_TYPE_SHIFT 7 #define SRMMU_SWP_OFF_MASK 0xfffff #define SRMMU_SWP_OFF_SHIFT (SRMMU_SWP_TYPE_SHIFT + 5) +/* We borrow bit 6 to store the exclusive marker in swap PTEs. */ +#define SRMMU_SWP_EXCLUSIVE SRMMU_DIRTY /* Some day I will implement true fine grained access bits for * user pages because the SRMMU gives us the capabilities to @@ -105,7 +97,7 @@ bne 99b; \ restore %g0, %g0, %g0; -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ extern unsigned long last_valid_pfn; /* This makes sense. Honest it does - Anton */ @@ -144,6 +136,6 @@ srmmu_get_pte (unsigned long addr) return entry; } -#endif /* !(__ASSEMBLY__) */ +#endif /* !(__ASSEMBLER__) */ #endif /* !(_SPARC_PGTSRMMU_H) */ |