The patch titled m68k: convert to use arch_gettimeoffset() has been added to the -mm tree. Its filename is m68k-convert-to-use-arch_gettimeoffset.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: m68k: convert to use arch_gettimeoffset() From: john stultz <johnstul@xxxxxxxxxx> Convert m68k to use GENERIC_TIME via the arch_getoffset() infrastructure, reducing the amount of arch specific code we need to maintain. I've taken my best swing at converting this, but I'm not 100% confident I got it right. My cross-compiler is now out of date (gcc4.2) so I wasn't able to check if it compiled. Any assistance from arch maintainers or testers to get this merged would be great. Signed-off-by: John Stultz <johnstul@xxxxxxxxxx> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Cc: Roman Zippel <zippel@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/m68k/Kconfig | 6 +++ arch/m68k/kernel/time.c | 70 +------------------------------------- 2 files changed, 8 insertions(+), 68 deletions(-) diff -puN arch/m68k/Kconfig~m68k-convert-to-use-arch_gettimeoffset arch/m68k/Kconfig --- a/arch/m68k/Kconfig~m68k-convert-to-use-arch_gettimeoffset +++ a/arch/m68k/Kconfig @@ -58,6 +58,12 @@ config HZ int default 100 +config GENERIC_TIME + def_bool y + +config ARCH_USES_GETTIMEOFFSET + def_bool y + mainmenu "Linux/68k Kernel Configuration" source "init/Kconfig" diff -puN arch/m68k/kernel/time.c~m68k-convert-to-use-arch_gettimeoffset arch/m68k/kernel/time.c --- a/arch/m68k/kernel/time.c~m68k-convert-to-use-arch_gettimeoffset +++ a/arch/m68k/kernel/time.c @@ -91,77 +91,11 @@ void __init time_init(void) mach_sched_init(timer_interrupt); } -/* - * This version of gettimeofday has near microsecond resolution. - */ -void do_gettimeofday(struct timeval *tv) +u32 arch_gettimeoffset(void) { - unsigned long flags; - unsigned long seq; - unsigned long usec, sec; - unsigned long max_ntp_tick = tick_usec - tickadj; - - do { - seq = read_seqbegin_irqsave(&xtime_lock, flags); - - usec = mach_gettimeoffset(); - - /* - * If time_adjust is negative then NTP is slowing the clock - * so make sure not to go into next possible interval. - * Better to lose some accuracy than have time go backwards.. - */ - if (unlikely(time_adjust < 0)) - usec = min(usec, max_ntp_tick); - - sec = xtime.tv_sec; - usec += xtime.tv_nsec/1000; - } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); - - - while (usec >= 1000000) { - usec -= 1000000; - sec++; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - -int do_settimeofday(struct timespec *tv) -{ - time_t wtm_sec, sec = tv->tv_sec; - long wtm_nsec, nsec = tv->tv_nsec; - - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq(&xtime_lock); - /* This is revolting. We need to set the xtime.tv_nsec - * correctly. However, the value in this location is - * is value at the last tick. - * Discover what correction gettimeofday - * would have done, and then undo it! - */ - nsec -= 1000 * mach_gettimeoffset(); - - wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); - wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); - - set_normalized_timespec(&xtime, sec, nsec); - set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); - - ntp_clear(); - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; + return mach_gettimeoffset() * 1000; } -EXPORT_SYMBOL(do_settimeofday); - - static int __init rtc_init(void) { struct platform_device *pdev; _ Patches currently in -mm which might be from johnstul@xxxxxxxxxx are arch-x86-kernel-tscc-smi-workaround-for-pit_expect_msb.patch arch-x86-kernel-tscc-smi-workaround-for-pit_expect_msb-checkpatch-fixes.patch clocksource-save-mult_orig-in-clocksource_disable.patch include-linux-clocksourceh-coding-style-tweaks.patch alpha-convert-to-use-arch_gettimeoffset.patch m32r-convert-to-use-arch_gettimeoffset.patch m68k-convert-to-use-arch_gettimeoffset.patch cris-convert-to-use-arch_gettimeoffset.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html