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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 22:35:37 +07:00
f6635f873a
switch_mm is an expensive operations that has two users. flush_icache_deferred is only called within switch_mm and can be moved together. The function is expected to be more complicated when ASID support is added, so clean up eagerly. By moving them to a separate file we also removes some excessive dependency of tlbflush.h and cacheflush.h. Signed-off-by: Gary Guo <gary@garyguo.net> Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* Copyright (C) 2012 Regents of the University of California
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* Copyright (C) 2017 SiFive
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _ASM_RISCV_MMU_CONTEXT_H
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#define _ASM_RISCV_MMU_CONTEXT_H
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#include <linux/mm_types.h>
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#include <asm-generic/mm_hooks.h>
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#include <linux/mm.h>
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#include <linux/sched.h>
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static inline void enter_lazy_tlb(struct mm_struct *mm,
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struct task_struct *task)
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{
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}
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/* Initialize context-related info for a new mm_struct */
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static inline int init_new_context(struct task_struct *task,
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struct mm_struct *mm)
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{
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return 0;
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}
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static inline void destroy_context(struct mm_struct *mm)
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{
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}
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void switch_mm(struct mm_struct *prev, struct mm_struct *next,
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struct task_struct *task);
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static inline void activate_mm(struct mm_struct *prev,
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struct mm_struct *next)
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{
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switch_mm(prev, next, NULL);
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}
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static inline void deactivate_mm(struct task_struct *task,
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struct mm_struct *mm)
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{
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}
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#endif /* _ASM_RISCV_MMU_CONTEXT_H */
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