linux.git/arch/sh/include/uapi/asm/cpu-features.h, branch v4.13.7 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git sh: add AT_HWCAP flag for J-Core cas.l instruction 2016-08-05T03:29:32+00:00 Rich Felker dalias@libc.org 2016-04-22T23:29:13+00:00 834da197058bebcb343320dafb8b62d416d4038c The J-Core cpu has, as an ISA extension, an atomic compare-and-swap instruction cas.l which applications need to use (instead the imask or gusa atomic models, which are fundamentally limited to UP) for synchronization in order to be compatible with SMP systems. Provide a hwcap flag so that it's possible to do runtime selection and support both. Signed-off-by: Rich Felker <dalias@libc.org> 
The J-Core cpu has, as an ISA extension, an atomic compare-and-swap
instruction cas.l which applications need to use (instead the imask or
gusa atomic models, which are fundamentally limited to UP) for
synchronization in order to be compatible with SMP systems. Provide a
hwcap flag so that it's possible to do runtime selection and support
both.

Signed-off-by: Rich Felker <dalias@libc.org>
UAPI: (Scripted) Disintegrate arch/sh/include/asm 2012-10-09T08:47:37+00:00 David Howells dhowells@redhat.com 2012-10-09T08:47:37+00:00 0a9426df1858f71ac84eb7eef500b4247de5e3bb Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> 
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>