powerpc: mmu_gather rework
commitd6bf29b44ddf3ca915f77b9383bee8b7a209f3fd
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Wed, 25 May 2011 00:11:48 +0000 (24 17:11 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 25 May 2011 15:39:13 +0000 (25 08:39 -0700)
tree777e98ebcbf207ea8442e977bd93053bb23a8df8
parentd16dfc550f5326a4000f3322582a7c05dec91d7a
powerpc: mmu_gather rework

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>
arch/powerpc/include/asm/pgalloc.h
arch/powerpc/include/asm/thread_info.h
arch/powerpc/include/asm/tlb.h
arch/powerpc/kernel/process.c
arch/powerpc/mm/pgtable.c
arch/powerpc/mm/tlb_hash32.c
arch/powerpc/mm/tlb_hash64.c
arch/powerpc/mm/tlb_nohash.c