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sparc: use asm-generic/mmu_context.h for no-op implementations
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Signed-off-by: Nicholas Piggin <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: [email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
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npiggin authored and arndb committed Oct 27, 2020
1 parent c350f8c commit ca0f34b
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Showing 2 changed files with 9 additions and 11 deletions.
10 changes: 4 additions & 6 deletions arch/sparc/include/asm/mmu_context_32.h
Original file line number Diff line number Diff line change
Expand Up @@ -6,31 +6,29 @@

#include <asm-generic/mm_hooks.h>

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.
*/
#define init_new_context init_new_context
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.
*/
#define destroy_context destroy_context
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)

#include <asm-generic/mmu_context.h>

#endif /* !(__ASSEMBLY__) */

#endif /* !(__SPARC_MMU_CONTEXT_H) */
10 changes: 5 additions & 5 deletions arch/sparc/include/asm/mmu_context_64.h
Original file line number Diff line number Diff line change
Expand Up @@ -16,17 +16,16 @@
#include <asm-generic/mm_hooks.h>
#include <asm/percpu.h>

static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
}

extern spinlock_t ctx_alloc_lock;
extern unsigned long tlb_context_cache;
extern unsigned long mmu_context_bmap[];

DECLARE_PER_CPU(struct mm_struct *, per_cpu_secondary_mm);
void get_new_mmu_context(struct mm_struct *mm);

#define init_new_context init_new_context
int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
#define destroy_context destroy_context
void destroy_context(struct mm_struct *mm);

void __tsb_context_switch(unsigned long pgd_pa,
Expand Down Expand Up @@ -136,7 +135,6 @@ static inline void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, str
spin_unlock_irqrestore(&mm->context.lock, flags);
}

#define deactivate_mm(tsk,mm) do { } while (0)
#define activate_mm(active_mm, mm) switch_mm(active_mm, mm, NULL)

#define __HAVE_ARCH_START_CONTEXT_SWITCH
Expand Down Expand Up @@ -187,6 +185,8 @@ static inline void finish_arch_post_lock_switch(void)
}
}

#include <asm-generic/mmu_context.h>

#endif /* !(__ASSEMBLY__) */

#endif /* !(__SPARC64_MMU_CONTEXT_H) */

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