Nicolas Pitre aaa50048f6 ARM: 6639/1: allow highmem on SMP platforms without h/w TLB ops broadcast ... In commit e616c59140, highmem support was deactivated for SMP platforms without hardware TLB ops broadcast because usage of kmap_high_get() requires that IRQs be disabled when kmap_lock is locked which is incompatible with the IPI mechanism used by the software TLB ops broadcast invoked through flush_all_zero_pkmaps(). The reason for kmap_high_get() is to ensure that the currently kmap'd page usage count does not decrease to zero while we're using its existing virtual mapping in an atomic context. With a VIVT cache this is essential to do due to cache coherency issues, but with a VIPT cache this is only an optimization so not to pay the price of establishing a second mapping if an existing one can be used. However, on VIPT platforms without hardware TLB maintenance we can give up on that optimization in order to be able to use highmem. From ARMv7 onwards the TLB ops are broadcasted in hardware, so let's disable ARCH_NEEDS_KMAP_HIGH_GET only when CONFIG_SMP and CONFIG_CPU_TLB_V6 are defined. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Tested-by: Saeed Bishara <saeed.bishara@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>		2011-02-23 17:24:17 +00:00
..
hardware	ARM: 6635/2: Configure reference clock for Versatile Express timers	2011-01-25 16:18:33 +00:00
mach	Merge branch 'smp' into misc	2011-01-06 22:32:03 +00:00
Kbuild	archs: replace unifdef-y with header-y	2010-08-14 22:26:51 +02:00
a.out-core.h	…
a.out.h	headers_check fix: arm, a.out.h	2009-02-01 11:01:22 +05:30
asm-offsets.h	kbuild: move asm-offsets.h to include/generated	2009-12-12 13:08:14 +01:00
assembler.h	Merge branch 'smp' into misc	2011-01-06 22:32:03 +00:00
atomic.h	ARM: 6212/1: atomic ops: add memory constraints to inline asm	2010-07-09 11:29:35 +01:00
auxvec.h	…
bitops.h	ARM: 6621/1: bitops: remove condition code clobber for CLZ	2011-01-12 14:22:25 +00:00
bitsperlong.h	asm-generic: introduce asm/bitsperlong.h	2009-06-11 21:02:14 +02:00
bug.h	[ARM] 5211/2: fix a couple warnings from BUG() usage	2008-09-01 12:06:27 +01:00
bugs.h	…
byteorder.h	byteorder: make swab.h include asm/swab.h like a regular header	2009-01-14 19:56:50 -08:00
cache.h	ARM: implement support for read-mostly sections	2010-12-05 08:39:36 +00:00
cacheflush.h	Merge branches 'at91', 'dcache', 'ftrace', 'hwbpt', 'misc', 'mmci', 's3c', 'st-ux' and 'unwind' into devel	2010-10-18 22:34:25 +01:00
cachetype.h	ARM: 6385/1: setup: detect aliasing I-cache when D-cache is non-aliasing	2010-10-04 20:57:09 +01:00
checksum.h	…
clkdev.h	ARM: 6483/1: arm & sh: factorised duplicated clkdev.c	2010-11-26 10:51:04 +00:00
cpu-multi32.h	…
cpu-single.h	…
cpu.h	ARM: 5872/1: ARM: include needed linux/cpu.h in asm/cpu.h	2010-01-10 13:03:52 +00:00
cputime.h	…
cputype.h	ARM: fix some sparse errors in generic ARM code	2011-02-23 17:24:12 +00:00
current.h	…
delay.h	…
device.h	Driver Core: Add platform device arch data V3	2009-07-22 00:28:38 +02:00
div64.h	[ARM] 5320/1: fix assembly constraints in implementation of do_div()	2008-10-23 12:53:32 +01:00
dma-mapping.h	ARM: DMA: add support for DMA debugging	2011-01-06 22:31:11 +00:00
dma.h	ARM: 5870/1: arch/arm: Fix build failure for defconfigs without CONFIG_ISA_DMA_API set	2010-01-10 00:08:03 +00:00
domain.h	ARM: 6384/1: Remove the domain switching on ARMv6k/v7 CPUs	2010-11-04 15:44:31 +00:00
ecard.h	…
elf.h	ARM: 6486/1: provide zero vmcore_elf64_check_arch()	2010-11-30 13:40:01 +00:00
emergency-restart.h	…
entry-macro-multi.S	Merge branch 'smp' into misc	2011-01-06 22:32:03 +00:00
entry-macro-vic2.S	ARM: Add common entry code for system with two VICs	2010-01-15 17:10:14 +09:00
errno.h	…
fb.h	…
fcntl.h	…
fiq.h	…
fixmap.h	[ARM] fixmap support	2009-03-15 21:01:20 -04:00
flat.h	flat: fix data sections alignment	2009-05-29 08:40:02 -07:00
floppy.h	[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach	2008-08-07 09:55:48 +01:00
fpstate.h	…
ftrace.h	ARM: 6319/1: ftrace: add Thumb-2 support to dynamic ftrace	2010-09-02 15:28:43 +01:00
futex.h	ARM: 6384/1: Remove the domain switching on ARMv6k/v7 CPUs	2010-11-04 15:44:31 +00:00
glue.h	ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()	2009-10-02 22:34:32 +01:00
gpio.h	[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach	2008-08-07 09:55:48 +01:00
hardirq.h	ARM: SMP: collect IPI and local timer IRQs for /proc/stat	2010-12-20 15:08:01 +00:00
highmem.h	ARM: 6639/1: allow highmem on SMP platforms without h/w TLB ops broadcast	2011-02-23 17:24:17 +00:00
hw_breakpoint.h	ARM: hw_breakpoint: unify single-stepping code for watchpoints and breakpoints	2010-12-06 11:55:57 +00:00
hw_irq.h	arm: Use ARCH_IRQ_INIT_FLAGS	2010-10-16 22:57:38 +02:00
hwcap.h	ARM: 6207/1: Replace CONFIG_HAS_TLS_REG with HWCAP_TLS and check for it on V6	2010-07-09 14:41:35 +01:00
ide.h	…
io.h	ARM: io: ensure inb/outb() et.al. are properly ordered on ARMv6+	2011-01-31 10:53:42 +00:00
ioctl.h	…
ioctls.h	ioctl: Use asm-generic/ioctls.h on arm (enables termiox)	2010-10-22 10:19:59 -07:00
ipcbuf.h	…
irq.h	ARM: 6197/2: preliminary support for sparse IRQ	2010-07-09 14:41:33 +01:00
irq_regs.h	…
irqflags.h	Fix IRQ flag handling naming	2010-10-07 14:08:55 +01:00
kdebug.h	…
kexec.h	ARM: 6518/1: kexec: Fix crash_setup_regs() for ARMv7 and CONFIG_THUMB2_KERNEL	2010-12-04 11:00:53 +00:00
kgdb.h	kgdb,arm: fix register dump	2010-10-29 13:14:40 -05:00
kmap_types.h	kdb: core for kgdb back end (2 of 2)	2010-05-20 21:04:21 -05:00
kprobes.h	[ARM] 5206/1: remove kprobe_trap_handler() hack	2008-09-01 12:06:26 +01:00
leds.h	…
limits.h	…
linkage.h	…
local.h	…
local64.h	arch: Implement local64_t	2010-06-09 11:12:36 +02:00
localtimer.h	ARM: localtimer: clean up local timer on hot unplug	2010-12-20 15:09:16 +00:00
locks.h	…
mach-types.h	arm: move mach-types to include/generated	2009-12-12 13:08:14 +01:00
mc146818rtc.h	[ARM] Convert asm/io.h to linux/io.h	2008-09-06 12:10:45 +01:00
memblock.h	ARM: fix memblock breakage	2010-10-27 21:41:39 +01:00
memory.h	ARM: 6637/1: Make the argument to virt_to_phys() "const volatile"	2011-01-25 21:18:03 +00:00
mman.h	arm: add arch_mmap_check(), get rid of sys_arm_mremap()	2009-12-11 06:34:09 -05:00
mmu.h	ARM: 6490/1: MM: bugfix: initialize spinlock for init_mm.context	2010-11-23 22:46:12 +00:00
mmu_context.h	ARM: add a vma entry for the user accessible vector page	2010-10-01 22:35:19 -04:00
module.h	ARM: module: clean up handling of ELF unwind tables	2010-12-01 10:23:04 +00:00
msgbuf.h	…
mtd-xip.h	[ARM] move asm/xip.h's mach/hardware.h include to mach/xip.h	2008-12-14 13:22:51 +00:00
mutex.h	…
nwflash.h	…
outercache.h	arm: Disable outer (L2) cache in kexec	2010-10-26 11:39:56 +05:30
page-nommu.h	nommu: Remove the memory_start/end variables from ARM page-nommu.h	2009-07-24 12:35:01 +01:00
page.h	ARM: pgtable: introduce pteval_t to represent a pte value	2010-11-26 20:45:47 +00:00
param.h	…
parport.h	…
pci.h	ARM: 6058/1: Add support for PCI domains	2010-04-22 21:38:11 +01:00
percpu.h	…
perf_event.h	irq_work: Add generic hardirq context callbacks	2010-10-18 19:58:50 +02:00
pgalloc.h	ARM: pgtable: switch order of Linux vs hardware page tables	2010-12-22 11:05:32 +00:00
pgtable-hwdef.h	…
pgtable-nommu.h	ARM: 5988/1: pgprot_dmacoherent() for non-mmu builds	2010-03-13 10:48:22 +00:00
pgtable.h	ARM: pgtable: provide RDONLY page table bit rather than WRITE bit	2010-12-22 11:05:35 +00:00
pmu.h	ARM: 6064/1: pmu: register IRQs at runtime	2010-05-17 11:53:57 +01:00
poll.h	…
posix_types.h	…
proc-fns.h	ARM: Kill CONFIG_CPU_32	2009-12-18 16:07:53 +00:00
processor.h	ARM: 6357/1: hw-breakpoint: add new ptrace requests for hw-breakpoint interaction	2010-09-08 10:05:00 +01:00
procinfo.h	…
ptrace.h	ARM: 6357/1: hw-breakpoint: add new ptrace requests for hw-breakpoint interaction	2010-09-08 10:05:00 +01:00
resource.h	…
scatterlist.h	asm-generic: remove ARCH_HAS_SG_CHAIN in scatterlist.h	2010-05-27 09:12:54 -07:00
sched_clock.h	ARM: sched_clock: allow init_sched_clock() to be called early	2011-01-11 16:23:04 +00:00
seccomp.h	ARM: SECCOMP support	2010-10-01 22:32:18 -04:00
sections.h	…
segment.h	…
sembuf.h	…
serial.h	…
setup.h	ARM: Remove DISCONTIGMEM support	2010-07-16 10:57:35 +01:00
shmbuf.h	…
shmparam.h	…
sigcontext.h	…
siginfo.h	…
signal.h	asm-generic: rename termios.h, signal.h and mman.h	2009-06-11 21:01:52 +02:00
sizes.h	ARM: 6536/1: Add missing SZ_{32,64,128}	2010-12-24 09:37:58 +00:00
smp.h	ARM: SMP: consolidate the common parts of smp_prepare_cpus()	2010-12-20 15:09:08 +00:00
smp_plat.h	Merge branches 'at91', 'dcache', 'ftrace', 'hwbpt', 'misc', 'mmci', 's3c', 'st-ux' and 'unwind' into devel	2010-10-18 22:34:25 +01:00
smp_scu.h	[ARM] smp: separate SCU support code from realview	2009-05-17 19:00:37 +01:00
smp_twd.h	ARM: localtimer: clean up local timer on hot unplug	2010-12-20 15:09:16 +00:00
socket.h	net: Generalize socket rx gap / receive queue overflow cmsg	2009-10-12 13:26:31 -07:00
sockios.h	…
sparsemem.h	[ARM] mm: enable sparsemem on clps7500 and RiscPC	2008-10-01 17:24:04 +01:00
spinlock.h	ARM: 5897/1: spinlock: don't use deprecated barriers on ARMv7	2010-02-15 21:39:50 +00:00
spinlock_types.h	locking: Convert raw_rwlock to arch_rwlock	2009-12-14 23:55:32 +01:00
stackprotector.h	ARM: initial stack protector (-fstack-protector) support	2010-06-14 21:31:00 -04:00
stacktrace.h	[ARM] 5382/1: unwind: Reorganise the stacktrace support	2009-02-12 13:21:17 +00:00
stat.h	…
statfs.h	ARM: Use <asm-generic/statfs.h>	2008-09-04 09:46:11 +01:00
string.h	[ARM] remove memzero()	2008-11-27 12:37:59 +00:00
swab.h	ARM: 5772/1: Use REV and REV16 for byte swapping on ARMv6+	2009-10-25 15:59:53 +00:00
system.h	Merge branch 'misc' into devel	2011-01-06 22:32:52 +00:00
tcm.h	ARM: 5580/2: ARM TCM (Tightly-Coupled Memory) support v3	2009-09-15 22:11:05 +01:00
termbits.h	tty: Add EXTPROC support for LINEMODE	2010-08-10 13:47:39 -07:00
termios.h	…
therm.h	…
thread_info.h	ARM: SECCOMP support	2010-10-01 22:32:18 -04:00
thread_notify.h	ARM: Convert VFP/Crunch/XscaleCP thread_release() to exit_thread()	2009-12-18 14:53:41 +00:00
timex.h	[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach	2008-08-07 09:55:48 +01:00
tlb.h	mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()	2009-07-27 12:10:38 -07:00
tlbflush.h	Merge branches 'at91', 'dcache', 'ftrace', 'hwbpt', 'misc', 'mmci', 's3c', 'st-ux' and 'unwind' into devel	2010-10-18 22:34:25 +01:00
tls.h	ARM: 6207/1: Replace CONFIG_HAS_TLS_REG with HWCAP_TLS and check for it on V6	2010-07-09 14:41:35 +01:00
topology.h	…
traps.h	Merge branch 'misc' into devel	2011-01-06 22:32:52 +00:00
types.h	…
uaccess.h	ARM: 6384/1: Remove the domain switching on ARMv6k/v7 CPUs	2010-11-04 15:44:31 +00:00
ucontext.h	ARM: 6051/1: VFP: preserve the HW context when calling signal handlers	2010-04-14 11:11:30 +01:00
unaligned.h	…
unified.h	Fix "W" macro in arch/arm/include/asm/unified.h	2009-09-18 23:30:11 +01:00
unistd.h	ARM: 6343/1: wire up fanotify and prlimit64 syscalls on ARM	2010-09-01 10:06:08 +01:00
unwind.h	[ARM] 5383/2: unwind: Add core support for ARM stack unwinding	2009-02-19 11:26:24 +00:00
user.h	ARM: 6051/1: VFP: preserve the HW context when calling signal handlers	2010-04-14 11:11:30 +01:00
vfp.h	…
vfpmacros.h	ARM: 6203/1: Make VFPv3 usable on ARMv6	2010-07-09 14:41:34 +01:00
vga.h	[ARM] Convert asm/io.h to linux/io.h	2008-09-06 12:10:45 +01:00
xor.h	…