From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- arch/sparc/include/asm/mmu_context_32.h | 36 +++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 arch/sparc/include/asm/mmu_context_32.h (limited to 'arch/sparc/include/asm/mmu_context_32.h') diff --git a/arch/sparc/include/asm/mmu_context_32.h b/arch/sparc/include/asm/mmu_context_32.h new file mode 100644 index 000000000..7ddcb8bad --- /dev/null +++ b/arch/sparc/include/asm/mmu_context_32.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __SPARC_MMU_CONTEXT_H +#define __SPARC_MMU_CONTEXT_H + +#ifndef __ASSEMBLY__ + +#include + +static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + +/* Initialize a new mmu context. This is invoked when a new + * address space instance (unique or shared) is instantiated. + */ +int init_new_context(struct task_struct *tsk, struct mm_struct *mm); + +/* Destroy a dead context. This occurs when mmput drops the + * mm_users count to zero, the mmaps have been released, and + * all the page tables have been flushed. Our job is to destroy + * any remaining processor-specific state. + */ +void destroy_context(struct mm_struct *mm); + +/* Switch the current MM context. */ +void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, + struct task_struct *tsk); + +#define deactivate_mm(tsk,mm) do { } while (0) + +/* Activate a new MM instance for the current task. */ +#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL) + +#endif /* !(__ASSEMBLY__) */ + +#endif /* !(__SPARC_MMU_CONTEXT_H) */ -- cgit v1.2.3