[deliverable/linux.git] / arch / powerpc / include / asm / tlb.h

/*
 *	TLB shootdown specifics for powerpc
 *
 * Copyright (C) 2002 Anton Blanchard, IBM Corp.
 * Copyright (C) 2002 Paul Mackerras, IBM Corp.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */
#ifndef _ASM_POWERPC_TLB_H
#define _ASM_POWERPC_TLB_H
#ifdef __KERNEL__

#ifndef __powerpc64__
#include <asm/pgtable.h>
#endif
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
#ifndef __powerpc64__
#include <asm/page.h>
#include <asm/mmu.h>
#endif

#include <linux/pagemap.h>

#define tlb_start_vma(tlb, vma)	do { } while (0)
#define tlb_end_vma(tlb, vma)	do { } while (0)
#define __tlb_remove_tlb_entry	__tlb_remove_tlb_entry

extern void tlb_flush(struct mmu_gather *tlb);

/* Get the generic bits... */
#include <asm-generic/tlb.h>

extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
			     unsigned long address);

static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
					  unsigned long address)
{
#ifdef CONFIG_PPC_STD_MMU_32
	if (pte_val(*ptep) & _PAGE_HASHPTE)
		flush_hash_entry(tlb->mm, ptep, address);
#endif
}

#ifdef CONFIG_SMP
static inline int mm_is_core_local(struct mm_struct *mm)
{
	return cpumask_subset(mm_cpumask(mm),
			      topology_sibling_cpumask(smp_processor_id()));
}
#else
static inline int mm_is_core_local(struct mm_struct *mm)
{
	return 1;
}
#endif

#endif /* __KERNEL__ */
#endif /* __ASM_POWERPC_TLB_H */
Commit	Line	Data
	1	/*
	2	* TLB shootdown specifics for powerpc
	3	*
	4	* Copyright (C) 2002 Anton Blanchard, IBM Corp.
	5	* Copyright (C) 2002 Paul Mackerras, IBM Corp.
	6	*
	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License
	9	* as published by the Free Software Foundation; either version
	10	* 2 of the License, or (at your option) any later version.
	11	*/
	12	#ifndef _ASM_POWERPC_TLB_H
	13	#define _ASM_POWERPC_TLB_H
	14	#ifdef __KERNEL__
	15
	16	#ifndef __powerpc64__
	17	#include <asm/pgtable.h>
	18	#endif
	19	#include <asm/pgalloc.h>
	20	#include <asm/tlbflush.h>
	21	#ifndef __powerpc64__
	22	#include <asm/page.h>
	23	#include <asm/mmu.h>
	24	#endif
	25
	26	#include <linux/pagemap.h>
	27
	28	#define tlb_start_vma(tlb, vma) do { } while (0)
	29	#define tlb_end_vma(tlb, vma) do { } while (0)
	30	#define __tlb_remove_tlb_entry __tlb_remove_tlb_entry
	31
	32	extern void tlb_flush(struct mmu_gather *tlb);
	33
	34	/* Get the generic bits... */
	35	#include <asm-generic/tlb.h>
	36
	37	extern void flush_hash_entry(struct mm_struct mm, pte_t ptep,
	38	unsigned long address);
	39
	40	static inline void __tlb_remove_tlb_entry(struct mmu_gather tlb, pte_t ptep,
	41	unsigned long address)
	42	{
	43	#ifdef CONFIG_PPC_STD_MMU_32
	44	if (pte_val(*ptep) & _PAGE_HASHPTE)
	45	flush_hash_entry(tlb->mm, ptep, address);
	46	#endif
	47	}
	48
	49	#ifdef CONFIG_SMP
	50	static inline int mm_is_core_local(struct mm_struct *mm)
	51	{
	52	return cpumask_subset(mm_cpumask(mm),
	53	topology_sibling_cpumask(smp_processor_id()));
	54	}
	55	#else
	56	static inline int mm_is_core_local(struct mm_struct *mm)
	57	{
	58	return 1;
	59	}
	60	#endif
	61
	62	#endif /* __KERNEL__ */
	63	#endif /* __ASM_POWERPC_TLB_H */