[PATCH 6/6] aarch64: Add hp-timing.h

[Andreas Schwab]

Richard Henderson <rth@twiddle.net> writes:

> +/* Sync the instruction stream, and read from the virtual cycle counter.  */
> +#define HP_TIMING_NOW(Var) \
> +  __asm__ __volatile__ ("isb; mrs %0, cntvct_el0" : "=r" (Var))

According to https://bugs.launchpad.net/bugs/1344320 the generic timers
are not part of the kernel-to-userspace contract.

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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