Re: mvme68k timecounters.... untested

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Fri, Jan 04, 2008 at 10:54:13PM +0900, Izumi Tsutsui wrote:
> @@ -75,10 +77,12 @@
>  static int clock_pcc_profintr __P((void *));
>  static int clock_pcc_statintr __P((void *));
>  static void clock_pcc_initclocks __P((void *, int, int));
> -static long clock_pcc_microtime __P((void *));
>  static void clock_pcc_shutdown __P((void *));
> +static uint32_t clock_pcc_getcount(struct timecounter *);

static u_int clock_pcc_getcount(struct timecounter *);
to match the prototype.

>  
>  static struct clock_pcc_softc *clock_pcc_sc;
> +static uint32_t clock_pcc_count;
> +static uint16_t clock_pcc_reload;
>  
>  /* ARGSUSED */
>  int
> @@ -75,10 +77,11 @@
>  static int clock_pcctwo_profintr(void *);
>  static int clock_pcctwo_statintr(void *);
>  static void clock_pcctwo_initclocks(void *, int, int);
> -static long clock_pcctwo_microtime(void *);
>  static void clock_pcctwo_shutdown(void *);
> +static uint32_t clock_pcctwo_getcount(struct timecounter *);

Same here.

>  
>  static struct clock_pcctwo_softc *clock_pcctwo_sc;
> +static uint32_t clock_pcctwo_count;
>  
>  /* ARGSUSED */
>  int

If you can freely program the frequency and just have a free running
counter, use as high a frequency as possible. With the two glitches
above, it is otherwise fine.

Joerg