| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __ASM_TLBFLUSH_H |
| 3 | #define __ASM_TLBFLUSH_H |
| 4 | |
| 5 | #include <linux/mm.h> |
| 6 | |
| 7 | /* |
| 8 | * TLB flushing: |
| 9 | * |
| 10 | * - flush_tlb_all() flushes all processes TLB entries |
| 11 | * - flush_tlb_mm(mm) flushes the specified mm context TLB entries |
| 12 | * - flush_tlb_page(vma, vmaddr) flushes one page |
| 13 | * - flush_tlb_range(vma, start, end) flushes a range of pages |
| 14 | * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages |
| 15 | */ |
| 16 | extern void local_flush_tlb_all(void); |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 17 | extern void local_flush_tlb_range(struct vm_area_struct *vma, |
| 18 | unsigned long start, unsigned long end); |
| 19 | extern void local_flush_tlb_kernel_range(unsigned long start, |
| 20 | unsigned long end); |
| 21 | extern void local_flush_tlb_page(struct vm_area_struct *vma, |
| 22 | unsigned long page); |
| 23 | extern void local_flush_tlb_one(unsigned long vaddr); |
| 24 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 25 | #include <asm/mmu_context.h> |
| 26 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 27 | #ifdef CONFIG_SMP |
| 28 | |
| 29 | extern void flush_tlb_all(void); |
| 30 | extern void flush_tlb_mm(struct mm_struct *); |
| 31 | extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long, |
| 32 | unsigned long); |
| 33 | extern void flush_tlb_kernel_range(unsigned long, unsigned long); |
| 34 | extern void flush_tlb_page(struct vm_area_struct *, unsigned long); |
| 35 | extern void flush_tlb_one(unsigned long vaddr); |
| 36 | |
| 37 | #else /* CONFIG_SMP */ |
| 38 | |
| 39 | #define flush_tlb_all() local_flush_tlb_all() |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 40 | #define flush_tlb_mm(mm) drop_mmu_context(mm) |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 41 | #define flush_tlb_range(vma, vmaddr, end) local_flush_tlb_range(vma, vmaddr, end) |
| 42 | #define flush_tlb_kernel_range(vmaddr,end) \ |
| 43 | local_flush_tlb_kernel_range(vmaddr, end) |
| 44 | #define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page) |
| 45 | #define flush_tlb_one(vaddr) local_flush_tlb_one(vaddr) |
| 46 | |
| 47 | #endif /* CONFIG_SMP */ |
| 48 | |
| 49 | #endif /* __ASM_TLBFLUSH_H */ |