mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-29 22:56:47 +07:00
81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/* MN10300 TLB flushing functions
|
|
*
|
|
* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
|
|
* Written by David Howells (dhowells@redhat.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public Licence
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the Licence, or (at your option) any later version.
|
|
*/
|
|
#ifndef _ASM_TLBFLUSH_H
|
|
#define _ASM_TLBFLUSH_H
|
|
|
|
#include <asm/processor.h>
|
|
|
|
#define __flush_tlb() \
|
|
do { \
|
|
int w; \
|
|
__asm__ __volatile__ \
|
|
(" mov %1,%0 \n" \
|
|
" or %2,%0 \n" \
|
|
" mov %0,%1 \n" \
|
|
: "=d"(w) \
|
|
: "m"(MMUCTR), "i"(MMUCTR_IIV|MMUCTR_DIV) \
|
|
: "memory" \
|
|
); \
|
|
} while (0)
|
|
|
|
#define __flush_tlb_all() __flush_tlb()
|
|
#define __flush_tlb_one(addr) __flush_tlb()
|
|
|
|
|
|
/*
|
|
* TLB flushing:
|
|
*
|
|
* - flush_tlb() flushes the current mm struct TLBs
|
|
* - flush_tlb_all() flushes all processes TLBs
|
|
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
|
|
* - flush_tlb_page(vma, vmaddr) flushes one page
|
|
* - flush_tlb_range(mm, start, end) flushes a range of pages
|
|
* - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
|
|
*/
|
|
#define flush_tlb_all() \
|
|
do { \
|
|
preempt_disable(); \
|
|
__flush_tlb_all(); \
|
|
preempt_enable(); \
|
|
} while (0)
|
|
|
|
#define flush_tlb_mm(mm) \
|
|
do { \
|
|
preempt_disable(); \
|
|
__flush_tlb_all(); \
|
|
preempt_enable(); \
|
|
} while (0)
|
|
|
|
#define flush_tlb_range(vma, start, end) \
|
|
do { \
|
|
unsigned long __s __attribute__((unused)) = (start); \
|
|
unsigned long __e __attribute__((unused)) = (end); \
|
|
preempt_disable(); \
|
|
__flush_tlb_all(); \
|
|
preempt_enable(); \
|
|
} while (0)
|
|
|
|
|
|
#define __flush_tlb_global() flush_tlb_all()
|
|
#define flush_tlb() flush_tlb_all()
|
|
#define flush_tlb_kernel_range(start, end) \
|
|
do { \
|
|
unsigned long __s __attribute__((unused)) = (start); \
|
|
unsigned long __e __attribute__((unused)) = (end); \
|
|
flush_tlb_all(); \
|
|
} while (0)
|
|
|
|
extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
|
|
|
|
#define flush_tlb_pgtables(mm, start, end) do {} while (0)
|
|
|
|
#endif /* _ASM_TLBFLUSH_H */
|