[...]
>
> -static inline void yield(void)
> -{
> - asm volatile ("diag 0,0,0x44"
> - : :
> - : "memory", "cc");
> -}
> -
Nit: Looks weird that yield() is moved to time.h
Wonder if there is a better fit for this function.
> #define MAX_SECTOR_SIZE 4096
>
> -static inline void sleep(unsigned int seconds)
> -{
> - ulong target = get_second() + seconds;
> -
> - while (get_second() < target) {
> - yield();
> - }
> -}
> -
> static inline void IPL_assert(bool term, const char *message)
> {
> if (!term) {
> diff --git a/pc-bios/s390-ccw/time.h b/pc-bios/s390-ccw/time.h
> new file mode 100644
> index 0000000000..899de83ae7
> --- /dev/null
> +++ b/pc-bios/s390-ccw/time.h
> @@ -0,0 +1,39 @@
> +#ifndef TIME_H
> +#define TIME_H
> +
> +static inline u64 get_clock(void)
> +{
> + u64 r;
> +
> + asm volatile("stck %0" : "=Q" (r) : : "cc");
> + return r;
> +}
> +
> +static inline u64 get_time_ms(void)
> +{
> + /* Bit 51 is incremented each microsecond */
> + return (get_clock() >> 12) / 1000;
> +}
> +
> +static inline u64 get_time_seconds(void)
> +{
> + return (get_time_ms()) / 1000;
return get_time_ms() / 1000;
--
Thanks,
David / dhildenb
