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linux/include/asm-generic
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Paul Mackerras 09d4e0edd4 lib: Provide generic atomic64_t implementation 
Many processor architectures have no 64-bit atomic instructions, but
we need atomic64_t in order to support the perf_counter subsystem.

This adds an implementation of 64-bit atomic operations using hashed
spinlocks to provide atomicity.  For each atomic operation, the address
of the atomic64_t variable is hashed to an index into an array of 16
spinlocks.  That spinlock is taken (with interrupts disabled) around the
operation, which can then be coded non-atomically within the lock.

On UP, all the spinlock manipulation goes away and we simply disable
interrupts around each operation.  In fact gcc eliminates the whole
atomic64_lock variable as well.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-06-15 13:27:38 +10:00
..
bitops
asm-generic: rename atomic.h to atomic-long.h
2009-06-11 21:02:17 +02:00
4level-fixup.h
…
atomic64.h
lib: Provide generic atomic64_t implementation
2009-06-15 13:27:38 +10:00
atomic-long.h
asm-generic: merge branch 'master' of torvalds/linux-2.6
2009-06-12 11:32:58 +02:00
atomic.h
asm-generic: add generic atomic.h and io.h
2009-06-11 21:02:49 +02:00
audit_change_attr.h
…
audit_dir_write.h
…
audit_read.h
…
audit_signal.h
…
audit_write.h
[PATCH] asm/generic: fix bug - kernel fails to build when enable some common audit code on Blackfin
2008-12-09 02:27:39 -05:00
auxvec.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
bitops.h
asm-generic: make bitops.h usable
2009-06-11 21:02:31 +02:00
bitsperlong.h
asm-generic: introduce asm/bitsperlong.h
2009-06-11 21:02:14 +02:00
bug.h
Eliminate thousands of warnings with gcc 3.2 build
2009-05-06 16:36:09 -07:00
bugs.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
cache.h
asm-generic: add generic NOMMU versions of some headers
2009-06-11 21:02:50 +02:00
cacheflush.h
asm-generic: add generic NOMMU versions of some headers
2009-06-11 21:02:50 +02:00
checksum.h
add generic lib/checksum.c
2009-06-11 21:02:51 +02:00
cmpxchg-local.h
…
cmpxchg.h
…
cputime.h
…
current.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
delay.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
device.h
…
div64.h
…
dma-coherent.h
…
dma-mapping-broken.h
dma-mapping: add the device argument to dma_mapping_error()
2008-07-26 12:00:03 -07:00
dma.h
asm-generic: add legacy I/O header files
2009-06-11 21:02:42 +02:00
emergency-restart.h
…
errno-base.h
…
errno.h
…
fb.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
fcntl.h
make exported headers use strict posix types
2009-03-26 18:14:14 +01:00
futex.h
…
getorder.h
asm-generic: rename page.h and uaccess.h
2009-06-11 21:02:17 +02:00
gpio.h
gpiolib: allow GPIOs to be named
2009-04-02 19:04:51 -07:00
hardirq.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
hw_irq.h
asm-generic: add legacy I/O header files
2009-06-11 21:02:42 +02:00
ide_iops.h
…
int-l64.h
asm-generic: introduce asm/bitsperlong.h
2009-06-11 21:02:14 +02:00
int-ll64.h
asm-generic: introduce asm/bitsperlong.h
2009-06-11 21:02:14 +02:00
io.h
asm-generic: add generic atomic.h and io.h
2009-06-11 21:02:49 +02:00
ioctl.h
Make ioctl.h compatible with userland
2008-08-12 16:07:31 -07:00
ioctls.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
iomap.h
…
ipcbuf.h
asm-generic: add generic sysv ipc headers
2009-06-11 21:02:15 +02:00
irq_regs.h
…
irq.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
irqflags.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
Kbuild
asm-generic: add a generic unistd.h
2009-06-11 21:02:16 +02:00
Kbuild.asm
asm-generic: introduce asm/bitsperlong.h
2009-06-11 21:02:14 +02:00
kdebug.h
asm-generic: define DIE_OOPS in asm-generic
2008-10-27 11:39:03 +01:00
kmap_types.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
libata-portmap.h
…
linkage.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
local.h
asm-generic: fix local_add_unless macro
2009-05-18 08:34:08 -07:00
memory_model.h
mm: remove CONFIG_OUT_OF_LINE_PFN_TO_PAGE
2009-01-06 15:59:10 -08:00
mm_hooks.h
…
mman-common.h
asm-generic: rename termios.h, signal.h and mman.h
2009-06-11 21:01:52 +02:00
mman.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
mmu_context.h
asm-generic: add generic NOMMU versions of some headers
2009-06-11 21:02:50 +02:00
mmu.h
asm-generic: add generic NOMMU versions of some headers
2009-06-11 21:02:50 +02:00
module.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
msgbuf.h
asm-generic: add generic sysv ipc headers
2009-06-11 21:02:15 +02:00
mutex-dec.h
mutex: speed up generic mutex implementations
2008-10-23 09:18:20 -07:00
mutex-null.h
…
mutex-xchg.h
mutex: speed up generic mutex implementations
2008-10-23 09:18:20 -07:00
mutex.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
page.h
asm-generic: add generic NOMMU versions of some headers
2009-06-11 21:02:50 +02:00
param.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
parport.h
asm-generic: add legacy I/O header files
2009-06-11 21:02:42 +02:00
pci-dma-compat.h
dma-mapping: add the device argument to dma_mapping_error()
2008-07-26 12:00:03 -07:00
pci.h
asm-generic: make pci.h usable directly
2009-06-11 21:02:22 +02:00
percpu.h
PERCPU: Collect the DECLARE/DEFINE declarations together
2009-04-21 19:40:00 -07:00
pgalloc.h
asm-generic: add generic NOMMU versions of some headers
2009-06-11 21:02:50 +02:00
pgtable-nopmd.h
include/asm-generic/pgtable-nopmd.h: macros are noxious, reason #435
2008-07-28 16:30:21 -07:00
pgtable-nopud.h
…
pgtable.h
x86/paravirt: finish change from lazy cpu to context switch start/end
2009-03-29 23:36:01 -07:00
poll.h
…
posix_types.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
resource.h
…
rtc.h
asm-generic: make get_rtc_time overridable
2009-06-11 21:02:18 +02:00
scatterlist.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
sections.h
x86: make percpu symbols zerobased on SMP
2009-01-16 14:19:14 +01:00
segment.h
asm-generic: add generic NOMMU versions of some headers
2009-06-11 21:02:50 +02:00
sembuf.h
asm-generic: add generic sysv ipc headers
2009-06-11 21:02:15 +02:00
serial.h
asm-generic: add legacy I/O header files
2009-06-11 21:02:42 +02:00
setup.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
shmbuf.h
asm-generic: add generic sysv ipc headers
2009-06-11 21:02:15 +02:00
shmparam.h
asm-generic: add generic sysv ipc headers
2009-06-11 21:02:15 +02:00
siginfo.h
asm-generic/siginfo.h: update NSIGTRAP definition
2009-04-13 15:04:30 -07:00
signal-defs.h
asm-generic: rename termios.h, signal.h and mman.h
2009-06-11 21:01:52 +02:00
signal.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
socket.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
sockios.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
spinlock.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
stat.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
statfs.h
remove __KERNEL_STRICT_NAMES
2009-03-26 18:14:21 +01:00
string.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
swab.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
syscall.h
tracehook: comment pasto fixes
2008-09-05 14:39:38 -07:00
syscalls.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
system.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
termbits.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
termios-base.h
asm-generic: rename termios.h, signal.h and mman.h
2009-06-11 21:01:52 +02:00
termios.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
timex.h
asm-generic: add legacy I/O header files
2009-06-11 21:02:42 +02:00
tlb.h
…
tlbflush.h
asm-generic: add generic NOMMU versions of some headers
2009-06-11 21:02:50 +02:00
topology.h
cpumask: remove the now-obsoleted pcibus_to_cpumask(): generic
2009-03-30 22:05:17 +10:30
types.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
uaccess-unaligned.h
asm-generic: rename page.h and uaccess.h
2009-06-11 21:02:17 +02:00
uaccess.h
asm-generic: add a generic uaccess.h
2009-06-11 21:02:50 +02:00
ucontext.h
asm-generic: add generic ABI headers
2009-06-11 21:02:15 +02:00
unaligned.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
unistd.h
asm-generic: add a generic unistd.h
2009-06-11 21:02:16 +02:00
user.h
asm-generic: add generic versions of common headers
2009-06-11 21:02:37 +02:00
vga.h
asm-generic: add legacy I/O header files
2009-06-11 21:02:42 +02:00
vmlinux.lds.h
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next
2009-06-14 14:12:18 -07:00
xor.h
…