| Paul Mackerras | 047ea78 | 2005-11-19 20:17:32 +1100 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_MMU_H_ |
| 2 | #define _ASM_POWERPC_MMU_H_ |
| Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 3 | #ifdef __KERNEL__ |
| Paul Mackerras | 047ea78 | 2005-11-19 20:17:32 +1100 | [diff] [blame] | 4 | |
| Benjamin Herrenschmidt | 7c03d65 | 2008-12-18 19:13:32 +0000 | [diff] [blame^] | 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 | |
| David Gibson | 8d2169e | 2007-04-27 11:53:52 +1000 | [diff] [blame] | 46 | #ifdef CONFIG_PPC64 |
| 47 | /* 64-bit classic hash table MMU */ |
| 48 | # include <asm/mmu-hash64.h> |
| David Gibson | 4db68bf | 2007-06-13 14:52:54 +1000 | [diff] [blame] | 49 | #elif defined(CONFIG_PPC_STD_MMU) |
| 50 | /* 32-bit classic hash table MMU */ |
| 51 | # include <asm/mmu-hash32.h> |
| Josh Boyer | 4d922c8 | 2007-08-20 07:28:48 -0500 | [diff] [blame] | 52 | #elif defined(CONFIG_40x) |
| 53 | /* 40x-style software loaded TLB */ |
| 54 | # include <asm/mmu-40x.h> |
| David Gibson | 57d7909 | 2007-04-30 14:06:25 +1000 | [diff] [blame] | 55 | #elif defined(CONFIG_44x) |
| 56 | /* 44x-style software loaded TLB */ |
| 57 | # include <asm/mmu-44x.h> |
| David Gibson | 67f74c9 | 2007-06-15 15:33:09 +1000 | [diff] [blame] | 58 | #elif defined(CONFIG_FSL_BOOKE) |
| 59 | /* Freescale Book-E software loaded TLB */ |
| 60 | # include <asm/mmu-fsl-booke.h> |
| David Gibson | 3120234 | 2007-06-22 14:58:55 +1000 | [diff] [blame] | 61 | #elif defined (CONFIG_PPC_8xx) |
| 62 | /* Motorola/Freescale 8xx software loaded TLB */ |
| 63 | # include <asm/mmu-8xx.h> |
| David Gibson | 1f8d419 | 2005-05-05 16:15:13 -0700 | [diff] [blame] | 64 | #endif |
| David Gibson | 1f8d419 | 2005-05-05 16:15:13 -0700 | [diff] [blame] | 65 | |
| Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 66 | #endif /* __KERNEL__ */ |
| Paul Mackerras | 047ea78 | 2005-11-19 20:17:32 +1100 | [diff] [blame] | 67 | #endif /* _ASM_POWERPC_MMU_H_ */ |