2 Commits

Author	SHA1	Message	Date
Nicolas Pitre	40fb79c8a8	ARM: add a kuser_cmpxchg64 user space helper ... Some user space applications are designed around the ability to perform atomic operations on 64 bit values. Since this is natively possible only with ARMv6k and above, let's provide a new kuser helper to perform the operation with kernel supervision on pre ARMv6k hardware. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Tested-by: Dave Martin <dave.martin@linaro.org>	2011-06-28 15:47:47 -04:00
Nicolas Pitre	37b8304642	ARM: kuser: move interface documentation out of the source code ... Digging into some assembly file in order to get information about the kuser helpers is not that convivial. Let's move that information to a better formatted file in Documentation/arm/ and improve on it a bit. Thanks to Dave Martin <dave.martin@linaro.org> for the initial cleanup and clarifications. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Dave Martin <dave.martin@linaro.org>	2011-06-20 10:49:24 -04:00