diff options
author | Greentime Hu <greentime@andestech.com> | 2017-10-24 15:40:25 +0800 |
---|---|---|
committer | Greentime Hu <greentime@andestech.com> | 2018-02-22 10:44:32 +0800 |
commit | 7de9cf474083bfbba469f72dc208f7b51747632d (patch) | |
tree | 45e8f3f41c736e8a6abc0995aaf5ab8d86bea917 /arch/nds32/include/asm/tlbflush.h | |
parent | 664eec400bf8f3ab4d41279d6fb674a66ff3ba94 (diff) |
nds32: Cache and TLB routines
This patch contains cache and TLB maintenance functions.
Signed-off-by: Vincent Chen <vincentc@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/nds32/include/asm/tlbflush.h')
-rw-r--r-- | arch/nds32/include/asm/tlbflush.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/tlbflush.h b/arch/nds32/include/asm/tlbflush.h new file mode 100644 index 000000000000..9b411f401903 --- /dev/null +++ b/arch/nds32/include/asm/tlbflush.h @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#ifndef _ASMNDS32_TLBFLUSH_H +#define _ASMNDS32_TLBFLUSH_H + +#include <linux/spinlock.h> +#include <linux/mm.h> +#include <nds32_intrinsic.h> + +static inline void local_flush_tlb_all(void) +{ + __nds32__tlbop_flua(); + __nds32__isb(); +} + +static inline void local_flush_tlb_mm(struct mm_struct *mm) +{ + __nds32__tlbop_flua(); + __nds32__isb(); +} + +static inline void local_flush_tlb_kernel_range(unsigned long start, + unsigned long end) +{ + while (start < end) { + __nds32__tlbop_inv(start); + __nds32__isb(); + start += PAGE_SIZE; + } +} + +void local_flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end); +void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long addr); + +#define flush_tlb_all local_flush_tlb_all +#define flush_tlb_mm local_flush_tlb_mm +#define flush_tlb_range local_flush_tlb_range +#define flush_tlb_page local_flush_tlb_page +#define flush_tlb_kernel_range local_flush_tlb_kernel_range + +void update_mmu_cache(struct vm_area_struct *vma, + unsigned long address, pte_t * pte); +void tlb_migrate_finish(struct mm_struct *mm); + +#endif |