Commit 2e162674 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

powerpc/64s/hash: provide arch_setup_exec hooks for hash slice setup 



This will be used by the SLB code in the next patch, but for now this
sets the slb_addr_limit to the correct size for 32-bit tasks.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent e83cbf7f

arch/powerpc/include/asm/book3s/64/mmu-hash.h

+2 −0
Original line number Diff line number Diff line
@@ -487,6 +487,8 @@ int htab_remove_mapping(unsigned long vstart, unsigned long vend, 
extern void pseries_add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages);

extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr);



extern void hash__setup_new_exec(void);



#ifdef CONFIG_PPC_PSERIES

void hpte_init_pseries(void);

#else

arch/powerpc/include/asm/slice.h

+1 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ void slice_set_range_psize(struct mm_struct *mm, unsigned long start, 
			   unsigned long len, unsigned int psize);



void slice_init_new_context_exec(struct mm_struct *mm);

void slice_setup_new_exec(void);



#endif /* __ASSEMBLY__ */

arch/powerpc/include/asm/thread_info.h

+6 −0
Original line number Diff line number Diff line
@@ -72,6 +72,12 @@ static inline struct thread_info *current_thread_info(void) 
}



extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);



#ifdef CONFIG_PPC_BOOK3S_64

void arch_setup_new_exec(void);

#define arch_setup_new_exec arch_setup_new_exec

#endif



#endif /* __ASSEMBLY__ */



/*

arch/powerpc/kernel/process.c

+9 −0
Original line number Diff line number Diff line
@@ -1482,6 +1482,15 @@ void flush_thread(void) 
#endif /* CONFIG_HAVE_HW_BREAKPOINT */

}



#ifdef CONFIG_PPC_BOOK3S_64

void arch_setup_new_exec(void)

{

	if (radix_enabled())

		return;

	hash__setup_new_exec();

}

#endif



int set_thread_uses_vas(void)

{

#ifdef CONFIG_PPC_BOOK3S_64

arch/powerpc/mm/mmu_context_book3s64.c

+5 −0
Original line number Diff line number Diff line
@@ -84,6 +84,11 @@ static int hash__init_new_context(struct mm_struct *mm) 
	return index;

}



void hash__setup_new_exec(void)

{

	slice_setup_new_exec();

}



static int radix__init_new_context(struct mm_struct *mm)

{

	unsigned long rts_field;

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