Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 1 | /* |
| 2 | * include/asm-sh/tlb_64.h |
| 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. |
| 9 | */ |
| 10 | #ifndef __ASM_SH_TLB_64_H |
| 11 | #define __ASM_SH_TLB_64_H |
| 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 | /** |
Paul Mundt | 6a9545b | 2008-08-04 12:51:06 +0900 | [diff] [blame] | 24 | * for_each_dtlb_entry - Iterate over free (non-wired) DTLB entries |
Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 25 | * |
| 26 | * @tlb: TLB entry |
Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 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 | /** |
Paul Mundt | 6a9545b | 2008-08-04 12:51:06 +0900 | [diff] [blame] | 34 | * for_each_itlb_entry - Iterate over free (non-wired) ITLB entries |
Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 35 | * |
| 36 | * @tlb: TLB entry |
Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 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 | /** |
Paul Mundt | 6a9545b | 2008-08-04 12:51:06 +0900 | [diff] [blame] | 44 | * __flush_tlb_slot - Flushes TLB slot @slot. |
Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 45 | * |
| 46 | * @slot: Address of TLB slot. |
Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 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 | |
Paul Mundt | ccd8058 | 2008-04-25 12:58:40 +0900 | [diff] [blame] | 53 | #ifdef CONFIG_MMU |
Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 54 | /* arch/sh64/mm/tlb.c */ |
| 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); |
Paul Mundt | ccd8058 | 2008-04-25 12:58:40 +0900 | [diff] [blame] | 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 */ |
Paul Mundt | 959f7d5 | 2007-11-10 20:35:53 +0900 | [diff] [blame] | 70 | #endif /* __ASSEMBLY__ */ |
| 71 | #endif /* __ASM_SH_TLB_64_H */ |