linux-sg2042/arch/avr32
Benjamin Herrenschmidt 9e1b32caa5 mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()
mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()

Upcoming paches to support the new 64-bit "BookE" powerpc architecture
will need to have the virtual address corresponding to PTE page when
freeing it, due to the way the HW table walker works.

Basically, the TLB can be loaded with "large" pages that cover the whole
virtual space (well, sort-of, half of it actually) represented by a PTE
page, and which contain an "indirect" bit indicating that this TLB entry
RPN points to an array of PTEs from which the TLB can then create direct
entries. Thus, in order to invalidate those when PTE pages are deleted,
we need the virtual address to pass to tlbilx or tlbivax instructions.

The old trick of sticking it somewhere in the PTE page struct page sucks
too much, the address is almost readily available in all call sites and
almost everybody implemets these as macros, so we may as well add the
argument everywhere. I added it to the pmd and pud variants for consistency.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: David Howells <dhowells@redhat.com> [MN10300 & FRV]
Acked-by: Nick Piggin <npiggin@suse.de>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-27 12:10:38 -07:00
..
boards Merge branch 'avr32-arch' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6 2009-06-13 15:34:22 +02:00
boot avr32: remove .note.gnu.build-id section when making vmlinux.bin 2008-12-17 11:44:10 +01:00
configs avr32: Add support for Mediama RMTx add-on board for ATNGW100 2009-06-08 12:55:35 +02:00
include/asm mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() 2009-07-27 12:10:38 -07:00
kernel Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
lib avr32: Fix out-of-range rcalls in large kernels 2009-01-16 09:31:57 +01:00
mach-at32ap avr32: Fix clash in ATMEL_USART_ flags 2009-06-03 11:38:20 +02:00
mm Move FAULT_FLAG_xyz into handle_mm_fault() callers 2009-06-21 13:08:22 -07:00
oprofile Add kernel support for oprofile callgraphs on AVR32 2008-09-22 09:51:01 +02:00
Kconfig Merge branch 'avr32-arch' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6 2009-04-05 11:15:28 -07:00
Kconfig.debug [AVR32] Include instrumentation menu 2008-01-25 08:31:40 +01:00
Makefile avr32: drop unused CLEAN_FILES 2009-05-01 10:54:00 +02:00