| /* | |
| * include/asm-sh/tlb_64.h | |
| * | |
| * Copyright (C) 2003 Paul Mundt | |
| * | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| */ | |
| #ifndef __ASM_SH_TLB_64_H | |
| #define __ASM_SH_TLB_64_H | |
| /* ITLB defines */ | |
| #define ITLB_FIXED 0x00000000 /* First fixed ITLB, see head.S */ | |
| #define ITLB_LAST_VAR_UNRESTRICTED 0x000003F0 /* Last ITLB */ | |
| /* DTLB defines */ | |
| #define DTLB_FIXED 0x00800000 /* First fixed DTLB, see head.S */ | |
| #define DTLB_LAST_VAR_UNRESTRICTED 0x008003F0 /* Last DTLB */ | |
| #ifndef __ASSEMBLY__ | |
| /** | |
| * for_each_dtlb_entry - Iterate over free (non-wired) DTLB entries | |
| * | |
| * @tlb: TLB entry | |
| */ | |
| #define for_each_dtlb_entry(tlb) \ | |
| for (tlb = cpu_data->dtlb.first; \ | |
| tlb <= cpu_data->dtlb.last; \ | |
| tlb += cpu_data->dtlb.step) | |
| /** | |
| * for_each_itlb_entry - Iterate over free (non-wired) ITLB entries | |
| * | |
| * @tlb: TLB entry | |
| */ | |
| #define for_each_itlb_entry(tlb) \ | |
| for (tlb = cpu_data->itlb.first; \ | |
| tlb <= cpu_data->itlb.last; \ | |
| tlb += cpu_data->itlb.step) | |
| /** | |
| * __flush_tlb_slot - Flushes TLB slot @slot. | |
| * | |
| * @slot: Address of TLB slot. | |
| */ | |
| static inline void __flush_tlb_slot(unsigned long long slot) | |
| { | |
| __asm__ __volatile__ ("putcfg %0, 0, r63\n" : : "r" (slot)); | |
| } | |
| #ifdef CONFIG_MMU | |
| /* arch/sh64/mm/tlb.c */ | |
| int sh64_tlb_init(void); | |
| unsigned long long sh64_next_free_dtlb_entry(void); | |
| unsigned long long sh64_get_wired_dtlb_entry(void); | |
| int sh64_put_wired_dtlb_entry(unsigned long long entry); | |
| void sh64_setup_tlb_slot(unsigned long long config_addr, unsigned long eaddr, | |
| unsigned long asid, unsigned long paddr); | |
| void sh64_teardown_tlb_slot(unsigned long long config_addr); | |
| #else | |
| #define sh64_tlb_init() do { } while (0) | |
| #define sh64_next_free_dtlb_entry() (0) | |
| #define sh64_get_wired_dtlb_entry() (0) | |
| #define sh64_put_wired_dtlb_entry(entry) do { } while (0) | |
| #define sh64_setup_tlb_slot(conf, virt, asid, phys) do { } while (0) | |
| #define sh64_teardown_tlb_slot(addr) do { } while (0) | |
| #endif /* CONFIG_MMU */ | |
| #endif /* __ASSEMBLY__ */ | |
| #endif /* __ASM_SH_TLB_64_H */ |