mirror of
https://github.com/torvalds/linux
synced 2024-10-24 20:29:05 +00:00
d6bf29b44d
Fix up powerpc to the new mmu_gather stuff. PPC has an extra batching queue to RCU free the actual pagetable allocations, use the ARCH extentions for that for now. For the ppc64_tlb_batch, which tracks the vaddrs to unhash from the hardware hash-table, keep using per-cpu arrays but flush on context switch and use a TLF bit to track the lazy_mmu state. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Miller <davem@davemloft.net> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Tony Luck <tony.luck@intel.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hugh Dickins <hughd@google.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
#ifndef _ASM_POWERPC_PGALLOC_H
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#define _ASM_POWERPC_PGALLOC_H
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#ifdef __KERNEL__
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#include <linux/mm.h>
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#ifdef CONFIG_PPC_BOOK3E
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extern void tlb_flush_pgtable(struct mmu_gather *tlb, unsigned long address);
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#else /* CONFIG_PPC_BOOK3E */
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static inline void tlb_flush_pgtable(struct mmu_gather *tlb,
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unsigned long address)
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{
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}
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#endif /* !CONFIG_PPC_BOOK3E */
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static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
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{
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free_page((unsigned long)pte);
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}
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static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
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{
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pgtable_page_dtor(ptepage);
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__free_page(ptepage);
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}
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#ifdef CONFIG_PPC64
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#include <asm/pgalloc-64.h>
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#else
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#include <asm/pgalloc-32.h>
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#endif
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#ifdef CONFIG_SMP
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extern void pgtable_free_tlb(struct mmu_gather *tlb, void *table, unsigned shift);
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extern void pte_free_finish(struct mmu_gather *tlb);
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#else /* CONFIG_SMP */
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static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, unsigned shift)
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{
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pgtable_free(table, shift);
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}
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static inline void pte_free_finish(struct mmu_gather *tlb) { }
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#endif /* !CONFIG_SMP */
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static inline void __pte_free_tlb(struct mmu_gather *tlb, struct page *ptepage,
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unsigned long address)
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{
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tlb_flush_pgtable(tlb, address);
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pgtable_page_dtor(ptepage);
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pgtable_free_tlb(tlb, page_address(ptepage), 0);
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}
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#endif /* __KERNEL__ */
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#endif /* _ASM_POWERPC_PGALLOC_H */
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