diff options
Diffstat (limited to 'arch/nios2/include/asm/tlbflush.h')
| -rw-r--r-- | arch/nios2/include/asm/tlbflush.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/nios2/include/asm/tlbflush.h b/arch/nios2/include/asm/tlbflush.h new file mode 100644 index 0000000000..362d6da09d --- /dev/null +++ b/arch/nios2/include/asm/tlbflush.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> + */ + +#ifndef _ASM_NIOS2_TLBFLUSH_H +#define _ASM_NIOS2_TLBFLUSH_H + +struct mm_struct; + +/* + * TLB flushing: + * + * - flush_tlb_all() flushes all processes TLB entries + * - flush_tlb_mm(mm) flushes the specified mm context TLB entries + * - flush_tlb_range(vma, start, end) flushes a range of pages + * - flush_tlb_page(vma, address) flushes a page + * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages + * - flush_tlb_kernel_page(address) flushes a kernel page + * + * - reload_tlb_page(vma, address, pte) flushes the TLB for address like + * flush_tlb_page, then replaces it with a TLB for pte. + */ +extern void flush_tlb_all(void); +extern void flush_tlb_mm(struct mm_struct *mm); +extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end); +extern void flush_tlb_kernel_range(unsigned long start, unsigned long end); + +static inline void flush_tlb_page(struct vm_area_struct *vma, + unsigned long address) +{ + flush_tlb_range(vma, address, address + PAGE_SIZE); +} + +static inline void flush_tlb_kernel_page(unsigned long address) +{ + flush_tlb_kernel_range(address, address + PAGE_SIZE); +} + +extern void reload_tlb_page(struct vm_area_struct *vma, unsigned long addr, + pte_t pte); + +#endif /* _ASM_NIOS2_TLBFLUSH_H */ |