Anton Blanchard 18ad51dd34 powerpc: Add VDSO version of getcpu ... We have a request for a fast method of getting CPU and NUMA node IDs from userspace. This patch implements a getcpu VDSO function, similar to x86. Ben suggested we use SPRG3 which is userspace readable. SPRG3 can be modified by a KVM guest, so we save the SPRG3 value in the paca and restore it when transitioning from the guest to the host. I have a glibc patch that implements sched_getcpu on top of this. Testing on a POWER7: baseline: 538 cycles vdso: 30 cycles Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2012-07-11 14:18:40 +10:00
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alpha	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-06-01 11:53:44 -07:00
arm	Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm	2012-07-07 11:20:59 -07:00
avr32	fixups for signal breakage	2012-06-04 17:47:34 -04:00
blackfin	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-06-05 09:47:15 -07:00
c6x	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
cris	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-06-01 11:53:44 -07:00
frv	frv: Remove bogus closing parenthesis	2012-06-02 10:38:19 -04:00
h8300	h8300: use the declarations provided by <asm/sections.h>	2012-06-20 14:39:35 -07:00
hexagon	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
ia64	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-06-01 11:53:44 -07:00
m32r	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-06-01 11:53:44 -07:00
m68k	m68knommu: define a local devm_clk_get() function	2012-06-25 09:17:20 +10:00
microblaze	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
mips	- More robust parsing especially of xattr data in JFFS2	2012-06-01 16:55:42 -07:00
mn10300	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-06-01 11:53:44 -07:00
openrisc	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
parisc	[PARISC] fix code to find libgcc	2012-06-05 14:10:23 +09:00
powerpc	powerpc: Add VDSO version of getcpu	2012-07-11 14:18:40 +10:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-06-01 11:53:44 -07:00
score	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
sh	Merge branches 'sh/urgent' and 'sh/trivial' into sh-fixes-for-linus	2012-06-28 16:46:13 +09:00
sparc	Fix typo in printed messages	2012-06-24 11:03:52 -07:00
tile	tile: fix bug in get_user() for 4-byte values	2012-06-16 16:56:13 -04:00
um	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
unicore32	new helper: signal_delivered()	2012-06-01 12:58:52 -04:00
x86	KVM: MMU: fix shrinking page from the empty mmu	2012-07-03 17:31:50 -03:00
xtensa	xtensa: use the declarations provided by <asm/sections.h>	2012-06-20 14:39:35 -07:00
.gitignore
Kconfig	Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping	2012-05-25 09:18:59 -07:00