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

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Brian Cain <bcain@codeaurora.org>
Cc: linux-hexagon@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Nicholas Piggin 2020-09-02 00:15:23 +10:00 committed by Arnd Bergmann
parent 746192ff3a
commit c96c177a94
1 changed files with 5 additions and 28 deletions
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33
arch/hexagon/include/asm/mmu_context.h
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@ -15,39 +15,13 @@
#include <asm/pgalloc.h> #include <asm/pgalloc.h>
#include <asm/mem-layout.h> #include <asm/mem-layout.h>
static inline void destroy_context(struct mm_struct *mm)
{
}
/* /*
* VM port hides all TLB management, so "lazy TLB" isn't very * VM port hides all TLB management, so "lazy TLB" isn't very
* meaningful. Even for ports to architectures with visble TLBs, * meaningful. Even for ports to architectures with visble TLBs,
* this is almost invariably a null function. * this is almost invariably a null function.
*
* mm->context is set up by pgd_alloc, so no init_new_context required.
*/ */
static inline void enter_lazy_tlb(struct mm_struct *mm,
struct task_struct *tsk)
{
}
/*
* Architecture-specific actions, if any, for memory map deactivation.
*/
static inline void deactivate_mm(struct task_struct *tsk,
struct mm_struct *mm)
{
}
/**
* init_new_context - initialize context related info for new mm_struct instance
* @tsk: pointer to a task struct
* @mm: pointer to a new mm struct
*/
static inline int init_new_context(struct task_struct *tsk,
struct mm_struct *mm)
{
/* mm->context is set up by pgd_alloc */
return 0;
}
/* /*
* Switch active mm context * Switch active mm context
@ -74,6 +48,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
/* /*
* Activate new memory map for task * Activate new memory map for task
*/ */
#define activate_mm activate_mm
static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next) static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
{ {
unsigned long flags; unsigned long flags;
@ -86,4 +61,6 @@ static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
/* Generic hooks for arch_dup_mmap and arch_exit_mmap */ /* Generic hooks for arch_dup_mmap and arch_exit_mmap */
#include <asm-generic/mm_hooks.h> #include <asm-generic/mm_hooks.h>
#include <asm-generic/mmu_context.h>
#endif #endif