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

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Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Nicholas Piggin 2020-09-02 00:15:32 +10:00 committed by Arnd Bergmann
parent 4146bdab31
commit f4b90e37e3
1 changed files with 8 additions and 5 deletions
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13
arch/powerpc/include/asm/mmu_context.h
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@ -14,7 +14,9 @@
/*
* Most if the context management is out of line
*/
#define init_new_context init_new_context
extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
#define destroy_context destroy_context
extern void destroy_context(struct mm_struct *mm);
#ifdef CONFIG_SPAPR_TCE_IOMMU
struct mm_iommu_table_group_mem_t;
@ -235,27 +237,26 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
}
#define switch_mm_irqs_off switch_mm_irqs_off
#define deactivate_mm(tsk,mm) do { } while (0)
/*
* 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 *prev, struct mm_struct *next)
{
switch_mm_irqs_off(prev, next, current);
}
/* We don't currently use enter_lazy_tlb() for anything */
#ifdef CONFIG_PPC_BOOK3E_64
#define enter_lazy_tlb enter_lazy_tlb
static inline void enter_lazy_tlb(struct mm_struct *mm,
struct task_struct *tsk)
{
/* 64-bit Book3E keeps track of current PGD in the PACA */
#ifdef CONFIG_PPC_BOOK3E_64
get_paca()->pgd = NULL;
#endif
}
#endif
extern void arch_exit_mmap(struct mm_struct *mm);
@ -298,5 +299,7 @@ static inline int arch_dup_mmap(struct mm_struct *oldmm,
return 0;
}
#include <asm-generic/mmu_context.h>
#endif /* __KERNEL__ */
#endif /* __ASM_POWERPC_MMU_CONTEXT_H */