Babu Moger a12ee23493 arch/sparc: Introduce cmpxchg_u8 SPARC ... SPARC supports 32 bit and 64 bit cmpxchg right now. Add support for 8 bit (1 byte) cmpxchg. This is required to support queued rwlocks feature which uses 1 byte cmpxchg. The function __cmpxchg_u8 here uses the 4 byte cas instruction with a byte manipulation to achieve 1 byte cmpxchg. Signed-off-by: Babu Moger <babu.moger@oracle.com> Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com> Reviewed-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com> Reviewed-by: Jane Chu <jane.chu@oracle.com> Reviewed-by: Vijay Kumar <vijay.ac.kumar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-05-25 12:06:51 -07:00
..
boot	sparc: Add "install" target	2014-08-04 20:45:59 -07:00
configs	sparc64:Support User Probes for sparc	2016-12-11 18:01:51 -08:00
crypto	crypto: sparc - initialize blkcipher.ivsize	2015-10-08 21:36:48 +08:00
include	arch/sparc: Introduce cmpxchg_u8 SPARC	2017-05-25 12:06:51 -07:00
kernel	sparc/ftrace: Fix ftrace graph time measurement	2017-05-17 12:07:47 -07:00
lib	sparc64: fix fault handling in NGbzero.S and GENbzero.S	2017-05-09 12:16:25 -07:00
math-emu	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
mm	sparc: Fix -Wstringop-overflow warning	2017-05-17 12:07:46 -07:00
net	sparc64: Fix BPF JIT wrt. branches and ldimm64 instructions.	2017-05-01 20:48:36 -07:00
oprofile
power	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc	2014-10-11 20:36:34 -04:00
prom	sparc: fixing ident and beautifying code	2016-10-06 01:46:40 -04:00
Kbuild	sparc64: Add SHA1 driver making use of the 'sha1' instruction.	2012-08-20 15:08:49 -07:00
Kconfig	arch/sparc: Define config parameter CPU_BIG_ENDIAN	2017-05-25 12:06:50 -07:00
Kconfig.debug
Makefile	sparc32: Add -Wa,-Av8 to KBUILD_CFLAGS.	2016-03-01 00:24:04 -05:00