forked from Minki/linux
d4243c175f
Fixes this powerpc build error in 2.6.22-rc6-mm1 for powerpc 64 with
CONFIG_SWAP=n :
In file included from include2/asm/tlb.h:60,
from /home/compudj/git/linux-2.6-lttng/arch/powerpc/mm/init_64.
c:56:
/home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h: In function 'tlb_flush_mmu':
/home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h:76: error: implicit declaration of function 'release_pages'
/home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h: In function 'tlb_remove_page':
/home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h:105: error: implicit declaration of function 'page_cache_release'
make[2]: *** [arch/powerpc/mm/init_64.o] Error 1
release_pages is declared in linux/pagemap.h, but cannot be included in
linux/swap.h because of a sparc related comment:
/* only sparc can not include linux/pagemap.h in this file
* so leave page_cache_release and release_pages undeclared... */
#define free_page_and_swap_cache(page) \
page_cache_release(page)
#define free_pages_and_swap_cache(pages, nr) \
release_pages((pages), (nr), 0);
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
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* TLB shootdown specifics for powerpc
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*
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* Copyright (C) 2002 Anton Blanchard, IBM Corp.
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* Copyright (C) 2002 Paul Mackerras, IBM Corp.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ASM_POWERPC_TLB_H
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#define _ASM_POWERPC_TLB_H
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#ifdef __KERNEL__
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#ifndef __powerpc64__
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#include <asm/pgtable.h>
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#endif
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#include <asm/pgalloc.h>
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#include <asm/tlbflush.h>
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#ifndef __powerpc64__
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#include <asm/page.h>
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#include <asm/mmu.h>
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#endif
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#include <linux/pagemap.h>
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struct mmu_gather;
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#define tlb_start_vma(tlb, vma) do { } while (0)
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#define tlb_end_vma(tlb, vma) do { } while (0)
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#if !defined(CONFIG_PPC_STD_MMU)
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#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
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#elif defined(__powerpc64__)
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extern void pte_free_finish(void);
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static inline void tlb_flush(struct mmu_gather *tlb)
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{
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struct ppc64_tlb_batch *tlbbatch = &__get_cpu_var(ppc64_tlb_batch);
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/* If there's a TLB batch pending, then we must flush it because the
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* pages are going to be freed and we really don't want to have a CPU
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* access a freed page because it has a stale TLB
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*/
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if (tlbbatch->index)
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__flush_tlb_pending(tlbbatch);
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pte_free_finish();
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}
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#else
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extern void tlb_flush(struct mmu_gather *tlb);
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#endif
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/* Get the generic bits... */
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#include <asm-generic/tlb.h>
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#if !defined(CONFIG_PPC_STD_MMU) || defined(__powerpc64__)
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#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
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#else
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extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
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unsigned long address);
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static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
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unsigned long address)
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{
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if (pte_val(*ptep) & _PAGE_HASHPTE)
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flush_hash_entry(tlb->mm, ptep, address);
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}
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#endif
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#endif /* __KERNEL__ */
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#endif /* __ASM_POWERPC_TLB_H */
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