projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 959f7d58 | 2 | * include/asm-sh/tlb_64.h |
| 1da177e4 LT |
3 | * |
| 4 | * Copyright (C) 2003 Paul Mundt | |
| 5 | * | |
| 6 | * This file is subject to the terms and conditions of the GNU General Public | |
| 7 | * License. See the file "COPYING" in the main directory of this archive | |
| 8 | * for more details. | |
| 1da177e4 | 9 | */ |
| 959f7d58 PM |
10 | #ifndef __ASM_SH_TLB_64_H |
| 11 | #define __ASM_SH_TLB_64_H | |
| 1da177e4 LT |
12 | |
| 13 | /* ITLB defines */ | |
| 14 | #define ITLB_FIXED 0x00000000 /* First fixed ITLB, see head.S */ | |
| 15 | #define ITLB_LAST_VAR_UNRESTRICTED 0x000003F0 /* Last ITLB */ | |
| 16 | ||
| 17 | /* DTLB defines */ | |
| 18 | #define DTLB_FIXED 0x00800000 /* First fixed DTLB, see head.S */ | |
| 19 | #define DTLB_LAST_VAR_UNRESTRICTED 0x008003F0 /* Last DTLB */ | |
| 20 | ||
| 21 | #ifndef __ASSEMBLY__ | |
| 22 | ||
| 23 | /** | |
| 6a9545bd | 24 | * for_each_dtlb_entry - Iterate over free (non-wired) DTLB entries |
| 1da177e4 LT |
25 | * |
| 26 | * @tlb: TLB entry | |
| 1da177e4 LT |
27 | */ |
| 28 | #define for_each_dtlb_entry(tlb) \ | |
| 29 | for (tlb = cpu_data->dtlb.first; \ | |
| 30 | tlb <= cpu_data->dtlb.last; \ | |
| 31 | tlb += cpu_data->dtlb.step) | |
| 32 | ||
| 33 | /** | |
| 6a9545bd | 34 | * for_each_itlb_entry - Iterate over free (non-wired) ITLB entries |
| 1da177e4 LT |
35 | * |
| 36 | * @tlb: TLB entry | |
| 1da177e4 LT |
37 | */ |
| 38 | #define for_each_itlb_entry(tlb) \ | |
| 39 | for (tlb = cpu_data->itlb.first; \ | |
| 40 | tlb <= cpu_data->itlb.last; \ | |
| 41 | tlb += cpu_data->itlb.step) | |
| 42 | ||
| 43 | /** | |
| 6a9545bd | 44 | * __flush_tlb_slot - Flushes TLB slot @slot. |
| 1da177e4 LT |
45 | * |
| 46 | * @slot: Address of TLB slot. | |
| 1da177e4 LT |
47 | */ |
| 48 | static inline void __flush_tlb_slot(unsigned long long slot) | |
| 49 | { | |
| 50 | __asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot)); | |
| 51 | } | |
| 52 | ||
| ccd80587 | 53 | #ifdef CONFIG_MMU |
| 1da177e4 | 54 | /* arch/sh64/mm/tlb.c */ |
| 959f7d58 PM |
55 | int sh64_tlb_init(void); |
| 56 | unsigned long long sh64_next_free_dtlb_entry(void); | |
| 57 | unsigned long long sh64_get_wired_dtlb_entry(void); | |
| 58 | int sh64_put_wired_dtlb_entry(unsigned long long entry); | |
| 59 | void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr, | |
| 60 | unsigned long asid, unsigned long paddr); | |
| 61 | void sh64_teardown_tlb_slot(unsigned long long config_addr); | |
| ccd80587 PM |
62 | #else |
| 63 | #define sh64_tlb_init() do { } while (0) | |
| 64 | #define sh64_next_free_dtlb_entry() (0) | |
| 65 | #define sh64_get_wired_dtlb_entry() (0) | |
| 66 | #define sh64_put_wired_dtlb_entry(entry) do { } while (0) | |
| 67 | #define sh64_setup_tlb_slot(conf, virt, asid, phys) do { } while (0) | |
| 68 | #define sh64_teardown_tlb_slot(addr) do { } while (0) | |
| 69 | #endif /* CONFIG_MMU */ | |
| 1da177e4 | 70 | #endif /* __ASSEMBLY__ */ |
| 959f7d58 | 71 | #endif /* __ASM_SH_TLB_64_H */ |