mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-04-18 03:23:53 -04:00
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>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/*
|
|
* 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 HAVE_ARCH_MMU_GATHER 1
|
|
|
|
struct pte_freelist_batch;
|
|
|
|
struct arch_mmu_gather {
|
|
struct pte_freelist_batch *batch;
|
|
};
|
|
|
|
#define ARCH_MMU_GATHER_INIT (struct arch_mmu_gather){ .batch = NULL, }
|
|
|
|
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
|
|
}
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* __ASM_POWERPC_TLB_H */
|