X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=arch%2Fpowerpc%2Finclude%2Fasm%2Fmmu.h;h=dc82dcd06aeae9fea7f3b8da31bc21fa92146095;hb=c3071951d0acd33b5c3f820fb5eaa3a9c2a8f212;hp=4c0e1b4f975c369e2655b29c8bf660d9b05ac8a6;hpb=9389523a77be0a7e01d957c836733b5c9d5530a1;p=linux-2.6-omap-h63xx.git diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index 4c0e1b4f975..dc82dcd06ae 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -2,6 +2,63 @@ #define _ASM_POWERPC_MMU_H_ #ifdef __KERNEL__ +#include +#include + +/* + * MMU features bit definitions + */ + +/* + * First half is MMU families + */ +#define MMU_FTR_HPTE_TABLE ASM_CONST(0x00000001) +#define MMU_FTR_TYPE_8xx ASM_CONST(0x00000002) +#define MMU_FTR_TYPE_40x ASM_CONST(0x00000004) +#define MMU_FTR_TYPE_44x ASM_CONST(0x00000008) +#define MMU_FTR_TYPE_FSL_E ASM_CONST(0x00000010) + +/* + * This is individual features + */ + +/* Enable use of high BAT registers */ +#define MMU_FTR_USE_HIGH_BATS ASM_CONST(0x00010000) + +/* Enable >32-bit physical addresses on 32-bit processor, only used + * by CONFIG_6xx currently as BookE supports that from day 1 + */ +#define MMU_FTR_BIG_PHYS ASM_CONST(0x00020000) + +/* Enable use of broadcast TLB invalidations. We don't always set it + * on processors that support it due to other constraints with the + * use of such invalidations + */ +#define MMU_FTR_USE_TLBIVAX_BCAST ASM_CONST(0x00040000) + +/* Enable use of tlbilx invalidate instructions. + */ +#define MMU_FTR_USE_TLBILX ASM_CONST(0x00080000) + +/* This indicates that the processor cannot handle multiple outstanding + * broadcast tlbivax or tlbsync. This makes the code use a spinlock + * around such invalidate forms. + */ +#define MMU_FTR_LOCK_BCAST_INVAL ASM_CONST(0x00100000) + +#ifndef __ASSEMBLY__ +#include + +static inline int mmu_has_feature(unsigned long feature) +{ + return (cur_cpu_spec->mmu_features & feature); +} + +extern unsigned int __start___mmu_ftr_fixup, __stop___mmu_ftr_fixup; + +#endif /* !__ASSEMBLY__ */ + + #ifdef CONFIG_PPC64 /* 64-bit classic hash table MMU */ # include @@ -14,9 +71,9 @@ #elif defined(CONFIG_44x) /* 44x-style software loaded TLB */ # include -#elif defined(CONFIG_FSL_BOOKE) -/* Freescale Book-E software loaded TLB */ -# include +#elif defined(CONFIG_PPC_BOOK3E_MMU) +/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */ +# include #elif defined (CONFIG_PPC_8xx) /* Motorola/Freescale 8xx software loaded TLB */ # include