| /* |
| * 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 */ |
