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/*
* 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 */
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