72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
|
/*
|
||
|
|
* 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 */
|