projects / mirror_ubuntu-hirsute-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 50acfb2b | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| fab957c1 PD |
2 | /* |
| 3 | * Copyright (C) 2009 Chen Liqin <liqin.chen@sunplusct.com> | |
| 4 | * Copyright (C) 2012 Regents of the University of California | |
| fab957c1 PD |
5 | */ |
| 6 | ||
| 7 | #ifndef _ASM_RISCV_TLBFLUSH_H | |
| 8 | #define _ASM_RISCV_TLBFLUSH_H | |
| 9 | ||
| 08f051ed | 10 | #include <linux/mm_types.h> |
| f99fb607 | 11 | #include <asm/smp.h> |
| 08f051ed | 12 | |
| 6bd33e1e | 13 | #ifdef CONFIG_MMU |
| fab957c1 PD |
14 | static inline void local_flush_tlb_all(void) |
| 15 | { | |
| 16 | __asm__ __volatile__ ("sfence.vma" : : : "memory"); | |
| 17 | } | |
| 18 | ||
| 19 | /* Flush one page from local TLB */ | |
| 20 | static inline void local_flush_tlb_page(unsigned long addr) | |
| 21 | { | |
| 22 | __asm__ __volatile__ ("sfence.vma %0" : : "r" (addr) : "memory"); | |
| 23 | } | |
| 6bd33e1e CH |
24 | #else /* CONFIG_MMU */ |
| 25 | #define local_flush_tlb_all() do { } while (0) | |
| 26 | #define local_flush_tlb_page(addr) do { } while (0) | |
| 27 | #endif /* CONFIG_MMU */ | |
| fab957c1 | 28 | |
| 6bd33e1e | 29 | #if defined(CONFIG_SMP) && defined(CONFIG_MMU) |
| 95594cb4 CH |
30 | void flush_tlb_all(void); |
| 31 | void flush_tlb_mm(struct mm_struct *mm); | |
| 32 | void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr); | |
| 33 | void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, | |
| 34 | unsigned long end); | |
| 6bd33e1e CH |
35 | #else /* CONFIG_SMP && CONFIG_MMU */ |
| 36 | ||
| fab957c1 PD |
37 | #define flush_tlb_all() local_flush_tlb_all() |
| 38 | #define flush_tlb_page(vma, addr) local_flush_tlb_page(addr) | |
| f1b65f20 AW |
39 | |
| 40 | static inline void flush_tlb_range(struct vm_area_struct *vma, | |
| 41 | unsigned long start, unsigned long end) | |
| 42 | { | |
| 43 | local_flush_tlb_all(); | |
| 44 | } | |
| 45 | ||
| 46 | #define flush_tlb_mm(mm) flush_tlb_all() | |
| 6bd33e1e | 47 | #endif /* !CONFIG_SMP || !CONFIG_MMU */ |
| fab957c1 | 48 | |
| fab957c1 PD |
49 | /* Flush a range of kernel pages */ |
| 50 | static inline void flush_tlb_kernel_range(unsigned long start, | |
| 51 | unsigned long end) | |
| 52 | { | |
| 53 | flush_tlb_all(); | |
| 54 | } | |
| 55 | ||
| fab957c1 | 56 | #endif /* _ASM_RISCV_TLBFLUSH_H */ |