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4b3073e1c5
linux/arch/parisc/include/asm
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Russell King 4b3073e1c5 MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself 
On VIVT ARM, when we have multiple shared mappings of the same file
in the same MM, we need to ensure that we have coherency across all
copies.  We do this via make_coherent() by making the pages
uncacheable.

This used to work fine, until we allowed highmem with highpte - we
now have a page table which is mapped as required, and is not available
for modification via update_mmu_cache().

Ralf Beache suggested getting rid of the PTE value passed to
update_mmu_cache():

  On MIPS update_mmu_cache() calls __update_tlb() which walks pagetables
  to construct a pointer to the pte again.  Passing a pte_t * is much
  more elegant.  Maybe we might even replace the pte argument with the
  pte_t?

Ben Herrenschmidt would also like the pte pointer for PowerPC:

  Passing the ptep in there is exactly what I want.  I want that
  -instead- of the PTE value, because I have issue on some ppc cases,
  for I$/D$ coherency, where set_pte_at() may decide to mask out the
  _PAGE_EXEC.

So, pass in the mapped page table pointer into update_mmu_cache(), and
remove the PTE value, updating all implementations and call sites to
suit.

Includes a fix from Stephen Rothwell:

  sparc: fix fallout from update_mmu_cache API change

  Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-02-20 16:41:46 +00:00
..
agp.h agp: kill phys_to_gart() and gart_to_phys() 2009-08-03 09:05:00 +01:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asmregs.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
assembly.h parisc: fix 64bit build 2009-03-13 01:18:56 -04:00
atomic.h locking: Convert __raw_spin* functions to arch_spin* 2009-12-14 23:55:32 +01:00
auxvec.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
bitops.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bug.h parisc: Convert BUG() to use unreachable() 2009-12-16 03:48:55 +00:00
bugs.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
byteorder.h byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
cache.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
cacheflush.h block: add helpers to run flush_dcache_page() against a bio and a request's pages 2009-11-26 09:16:19 +01:00
checksum.h parisc: fix ipv6 checksum 2009-01-05 19:11:05 +00:00
compat_rt_sigframe.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
compat_signal.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
compat_ucontext.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
compat.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
cputime.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
current.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
delay.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
device.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
div64.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
dma-mapping.h Documentation: move DMA-mapping.txt to Doc/PCI/ 2009-01-29 18:19:29 -08:00
dma.h parisc: remove CVS keywords 2009-07-03 03:34:06 +00:00
eisa_bus.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
eisa_eeprom.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
elf.h elf: kill USE_ELF_CORE_DUMP 2009-12-16 07:20:12 -08:00
emergency-restart.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
errno.h cfg80211: errno.h: define ERFKILL 2009-06-07 05:01:00 -07:00
fb.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
fcntl.h vfs: Implement proper O_SYNC semantics 2009-12-10 15:02:50 +01:00
fixmap.h parisc: rename parisc's vmalloc_start to parisc_vmalloc_start 2009-09-27 23:27:04 -04:00
floppy.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
ftrace.h parisc: add CALLER_ADDR{0-6} macros 2009-12-16 03:48:54 +00:00
futex.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
grfioctl.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
hardirq.h parisc: convert to asm-generic/hardirq.h 2009-09-28 00:24:23 -04:00
hardware.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
hw_irq.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
ide.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
io.h parisc: define x->x mmio accessors 2009-03-13 01:20:48 -04:00
ioctl.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
ioctls.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
ipcbuf.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
irq_regs.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
irq.h parisc: convert cpu_check_affinity to new cpumask api 2009-03-13 01:20:27 -04:00
Kbuild byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
kdebug.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
led.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
linkage.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
local.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
machdep.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
mc146818rtc.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
mckinley.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
mman.h mm: add MAP_HUGETLB for mmaping pseudo-anonymous huge page regions 2009-09-22 07:17:41 -07:00
mmu_context.h parisc: fix braino in commit adding __space_to_prot 2009-01-05 18:15:25 +00:00
mmu.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
mmzone.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
module.h parisc: fix module loading failure of large kernel modules 2009-01-05 08:40:14 +10:30
msgbuf.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
mutex.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
page.h asm-generic: rename page.h and uaccess.h 2009-06-11 21:02:17 +02:00
param.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
parisc-device.h parisc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-11-26 22:22:41 +00:00
parport.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
pci.h PCI: remove pcibios_scan_all_fns() 2009-09-09 13:29:18 -07:00
pdc_chassis.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
pdc.h parisc: asm/pdc.h should include asm/page.h 2009-04-02 00:20:15 +00:00
pdcpat.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
percpu.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
perf_event.h perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
perf.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
pgalloc.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
pgtable.h MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself 2010-02-20 16:41:46 +00:00
poll.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
posix_types.h parisc: __kernel_time_t is always long 2008-11-26 22:22:36 +00:00
prefetch.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
processor.h parisc: add task_pt_regs macro 2009-07-03 03:34:11 +00:00
psw.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
ptrace.h parisc: add skeleton syscall.h 2009-09-27 23:07:23 -04:00
real.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
resource.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
ropes.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
rt_sigframe.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
rtc.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
runway.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
scatterlist.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
sections.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
segment.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
sembuf.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
serial.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
setup.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
shmbuf.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
shmparam.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
sigcontext.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
siginfo.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
signal.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
smp.h cpumask: remove arch_send_call_function_ipi 2009-09-24 09:34:47 +09:30
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
spinlock.h locking: Convert raw_rwlock functions to arch_rwlock 2009-12-14 23:55:32 +01:00
stat.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
statfs.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
string.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
superio.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
swab.h headers_check fix: parisc, swab.h 2009-02-01 11:01:27 +05:30
syscall.h parisc: add skeleton syscall.h 2009-09-27 23:07:23 -04:00
system.h parisc: fix ldcw inline assembler 2009-07-03 03:34:07 +00:00
termbits.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
termios.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
thread_info.h parisc: Make THREAD_SIZE available to assembly files and linker scripts. 2009-09-27 23:35:07 -04:00
timex.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
tlb.h mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() 2009-07-27 12:10:38 -07:00
tlbflush.h parisc: ensure broadcast tlb purge runs single threaded 2009-07-03 03:34:09 +00:00
topology.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
traps.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
types.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
uaccess.h asm-generic: rename page.h and uaccess.h 2009-06-11 21:02:17 +02:00
ucontext.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
unaligned.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
unistd.h perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
unwind.h parisc: initialize unwinder much earlier 2008-10-10 16:32:30 +00:00
user.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
vga.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00
xor.h parisc: move include/asm-parisc to arch/parisc/include/asm 2008-10-10 16:32:29 +00:00