1 #ifndef _ASM_POWERPC_MMU_H_ 2 #define _ASM_POWERPC_MMU_H_ 3 #ifdef __KERNEL__ 4 5 #include <asm/asm-compat.h> 6 #include <asm/feature-fixups.h> 7 8 /* 9 * MMU features bit definitions 10 */ 11 12 /* 13 * First half is MMU families 14 */ 15 #define MMU_FTR_HPTE_TABLE ASM_CONST(0x00000001) 16 #define MMU_FTR_TYPE_8xx ASM_CONST(0x00000002) 17 #define MMU_FTR_TYPE_40x ASM_CONST(0x00000004) 18 #define MMU_FTR_TYPE_44x ASM_CONST(0x00000008) 19 #define MMU_FTR_TYPE_FSL_E ASM_CONST(0x00000010) 20 21 /* 22 * This is individual features 23 */ 24 25 /* Enable use of high BAT registers */ 26 #define MMU_FTR_USE_HIGH_BATS ASM_CONST(0x00010000) 27 28 /* Enable >32-bit physical addresses on 32-bit processor, only used 29 * by CONFIG_6xx currently as BookE supports that from day 1 30 */ 31 #define MMU_FTR_BIG_PHYS ASM_CONST(0x00020000) 32 33 #ifndef __ASSEMBLY__ 34 #include <asm/cputable.h> 35 36 static inline int mmu_has_feature(unsigned long feature) 37 { 38 return (cur_cpu_spec->mmu_features & feature); 39 } 40 41 extern unsigned int __start___mmu_ftr_fixup, __stop___mmu_ftr_fixup; 42 43 #endif /* !__ASSEMBLY__ */ 44 45 46 #ifdef CONFIG_PPC64 47 /* 64-bit classic hash table MMU */ 48 # include <asm/mmu-hash64.h> 49 #elif defined(CONFIG_PPC_STD_MMU) 50 /* 32-bit classic hash table MMU */ 51 # include <asm/mmu-hash32.h> 52 #elif defined(CONFIG_40x) 53 /* 40x-style software loaded TLB */ 54 # include <asm/mmu-40x.h> 55 #elif defined(CONFIG_44x) 56 /* 44x-style software loaded TLB */ 57 # include <asm/mmu-44x.h> 58 #elif defined(CONFIG_FSL_BOOKE) 59 /* Freescale Book-E software loaded TLB */ 60 # include <asm/mmu-fsl-booke.h> 61 #elif defined (CONFIG_PPC_8xx) 62 /* Motorola/Freescale 8xx software loaded TLB */ 63 # include <asm/mmu-8xx.h> 64 #endif 65 66 #endif /* __KERNEL__ */ 67 #endif /* _ASM_POWERPC_MMU_H_ */ 68