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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/microblaze/include/asm/tlbflush.h | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/microblaze/include/asm/tlbflush.h')
| -rw-r--r-- | arch/microblaze/include/asm/tlbflush.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/tlbflush.h b/arch/microblaze/include/asm/tlbflush.h new file mode 100644 index 000000000..2e1353c2d --- /dev/null +++ b/arch/microblaze/include/asm/tlbflush.h @@ -0,0 +1,69 @@ +/* + * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> + * Copyright (C) 2008-2009 PetaLogix + * Copyright (C) 2006 Atmark Techno, Inc. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#ifndef _ASM_MICROBLAZE_TLBFLUSH_H +#define _ASM_MICROBLAZE_TLBFLUSH_H + +#ifdef CONFIG_MMU + +#include <linux/sched.h> +#include <linux/threads.h> +#include <asm/processor.h> /* For TASK_SIZE */ +#include <asm/mmu.h> +#include <asm/page.h> +#include <asm/pgalloc.h> + +extern void _tlbie(unsigned long address); +extern void _tlbia(void); + +#define __tlbia() { preempt_disable(); _tlbia(); preempt_enable(); } +#define __tlbie(x) { _tlbie(x); } + +static inline void local_flush_tlb_all(void) + { __tlbia(); } +static inline void local_flush_tlb_mm(struct mm_struct *mm) + { __tlbia(); } +static inline void local_flush_tlb_page(struct vm_area_struct *vma, + unsigned long vmaddr) + { __tlbie(vmaddr); } +static inline void local_flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end) + { __tlbia(); } + +#define flush_tlb_kernel_range(start, end) do { } while (0) + +#define update_mmu_cache(vma, addr, ptep) do { } while (0) + +#define flush_tlb_all local_flush_tlb_all +#define flush_tlb_mm local_flush_tlb_mm +#define flush_tlb_page local_flush_tlb_page +#define flush_tlb_range local_flush_tlb_range + +/* + * This is called in munmap when we have freed up some page-table + * pages. We don't need to do anything here, there's nothing special + * about our page-table pages. -- paulus + */ +static inline void flush_tlb_pgtables(struct mm_struct *mm, + unsigned long start, unsigned long end) { } + +#else /* CONFIG_MMU */ + +#define flush_tlb() BUG() +#define flush_tlb_all() BUG() +#define flush_tlb_mm(mm) BUG() +#define flush_tlb_page(vma, addr) BUG() +#define flush_tlb_range(mm, start, end) BUG() +#define flush_tlb_pgtables(mm, start, end) BUG() +#define flush_tlb_kernel_range(start, end) BUG() + +#endif /* CONFIG_MMU */ + +#endif /* _ASM_MICROBLAZE_TLBFLUSH_H */ |