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m68k: use asm-generic/mmu_context.h for no-op implementations

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Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Nicholas Piggin 2020-09-02 00:15:25 +10:00 committed by Arnd Bergmann
parent 8e51efc2d7
commit 2fd171be13
1 changed files with 9 additions and 28 deletions
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37
arch/m68k/include/asm/mmu_context.h
View file

@ -5,10 +5,6 @@
#include <asm-generic/mm_hooks.h>
#include <linux/mm_types.h>
static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
}
#ifdef CONFIG_MMU
#if defined(CONFIG_COLDFIRE)
@ -58,6 +54,7 @@ static inline void get_mmu_context(struct mm_struct *mm)
/*
* We're finished using the context for an address space.
*/
#define destroy_context destroy_context
static inline void destroy_context(struct mm_struct *mm)
{
if (mm->context != NO_CONTEXT) {
@ -83,6 +80,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
* After we have set current->mm to a new value, this activates
* the context for the new mm so we see the new mappings.
*/
#define activate_mm activate_mm
static inline void activate_mm(struct mm_struct *active_mm,
struct mm_struct *mm)
{
@ -90,8 +88,6 @@ static inline void activate_mm(struct mm_struct *active_mm,
set_context(mm->context, mm->pgd);
}
#define deactivate_mm(tsk, mm) do { } while (0)
#define prepare_arch_switch(next) load_ksp_mmu(next)
static inline void load_ksp_mmu(struct task_struct *task)
@ -176,6 +172,7 @@ extern unsigned long get_free_context(struct mm_struct *mm);
extern void clear_context(unsigned long context);
/* set the context for a new task to unmapped */
#define init_new_context init_new_context
static inline int init_new_context(struct task_struct *tsk,
struct mm_struct *mm)
{
@ -210,8 +207,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
activate_context(tsk->mm);
}
#define deactivate_mm(tsk, mm) do { } while (0)
#define activate_mm activate_mm
static inline void activate_mm(struct mm_struct *prev_mm,
struct mm_struct *next_mm)
{
@ -224,6 +220,7 @@ static inline void activate_mm(struct mm_struct *prev_mm,
#include <asm/page.h>
#include <asm/cacheflush.h>
#define init_new_context init_new_context
static inline int init_new_context(struct task_struct *tsk,
struct mm_struct *mm)
{
@ -231,8 +228,6 @@ static inline int init_new_context(struct task_struct *tsk,
return 0;
}
#define destroy_context(mm) do { } while(0)
static inline void switch_mm_0230(struct mm_struct *mm)
{
unsigned long crp[2] = {
@ -300,8 +295,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, str
}
}
#define deactivate_mm(tsk,mm) do { } while (0)
#define activate_mm activate_mm
static inline void activate_mm(struct mm_struct *prev_mm,
struct mm_struct *next_mm)
{
@ -315,24 +309,11 @@ static inline void activate_mm(struct mm_struct *prev_mm,
#endif
#include <asm-generic/mmu_context.h>
#else /* !CONFIG_MMU */
static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
{
return 0;
}
static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
{
}
#define destroy_context(mm) do { } while (0)
#define deactivate_mm(tsk,mm) do { } while (0)
static inline void activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
{
}
#include <asm-generic/nommu_context.h>
#endif /* CONFIG_MMU */
#endif /* __M68K_MMU_CONTEXT_H */