diff options
| -rw-r--r-- | arch/m68k/kernel/time.c | 123 | ||||
| -rw-r--r-- | arch/m68k/kernel/time_mm.c | 114 | ||||
| -rw-r--r-- | arch/m68k/kernel/time_no.c | 71 |
3 files changed, 118 insertions, 190 deletions
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index 75ab79b..adfcefb 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c @@ -1,5 +1,118 @@ -#if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE) -#include "time_mm.c" -#else -#include "time_no.c" -#endif +/* + * linux/arch/m68k/kernel/time.c + * + * Copyright (C) 1991, 1992, 1995 Linus Torvalds + * + * This file contains the m68k-specific time handling details. + * Most of the stuff is located in the machine specific files. + * + * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 + * "A Kernel Model for Precision Timekeeping" by Dave Mills + */ + +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <linux/rtc.h> +#include <linux/platform_device.h> + +#include <asm/machdep.h> +#include <asm/io.h> +#include <asm/irq_regs.h> + +#include <linux/time.h> +#include <linux/timex.h> +#include <linux/profile.h> + +static inline int set_rtc_mmss(unsigned long nowtime) +{ + if (mach_set_clock_mmss) + return mach_set_clock_mmss (nowtime); + return -1; +} + +/* + * timer_interrupt() needs to keep up the real-time clock, + * as well as call the "xtime_update()" routine every clocktick + */ +static irqreturn_t timer_interrupt(int irq, void *dummy) +{ + xtime_update(1); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); + +#ifdef CONFIG_HEARTBEAT + /* use power LED as a heartbeat instead -- much more useful + for debugging -- based on the version for PReP by Cort */ + /* acts like an actual heart beat -- ie thump-thump-pause... */ + if (mach_heartbeat) { + static unsigned cnt = 0, period = 0, dist = 0; + + if (cnt == 0 || cnt == dist) + mach_heartbeat( 1 ); + else if (cnt == 7 || cnt == dist+7) + mach_heartbeat( 0 ); + + if (++cnt > period) { + cnt = 0; + /* The hyperbolic function below modifies the heartbeat period + * length in dependency of the current (5min) load. It goes + * through the points f(0)=126, f(1)=86, f(5)=51, + * f(inf)->30. */ + period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; + dist = period / 4; + } + } +#endif /* CONFIG_HEARTBEAT */ + return IRQ_HANDLED; +} + +void read_persistent_clock(struct timespec *ts) +{ + struct rtc_time time; + ts->tv_sec = 0; + ts->tv_nsec = 0; + + if (mach_hwclk) { + mach_hwclk(0, &time); + + if ((time.tm_year += 1900) < 1970) + time.tm_year += 100; + ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday, + time.tm_hour, time.tm_min, time.tm_sec); + } +} + +void __init time_init(void) +{ + mach_sched_init(timer_interrupt); +} + +#ifdef CONFIG_M68KCLASSIC + +u32 arch_gettimeoffset(void) +{ + return mach_gettimeoffset() * 1000; +} + +static int __init rtc_init(void) +{ + struct platform_device *pdev; + + if (!mach_hwclk) + return -ENODEV; + + pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + return 0; +} + +module_init(rtc_init); + +#endif /* CONFIG_M68KCLASSIC */ diff --git a/arch/m68k/kernel/time_mm.c b/arch/m68k/kernel/time_mm.c deleted file mode 100644 index 18b34ee..0000000 --- a/arch/m68k/kernel/time_mm.c +++ /dev/null @@ -1,114 +0,0 @@ -/* - * linux/arch/m68k/kernel/time.c - * - * Copyright (C) 1991, 1992, 1995 Linus Torvalds - * - * This file contains the m68k-specific time handling details. - * Most of the stuff is located in the machine specific files. - * - * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 - * "A Kernel Model for Precision Timekeeping" by Dave Mills - */ - -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/rtc.h> -#include <linux/platform_device.h> - -#include <asm/machdep.h> -#include <asm/io.h> -#include <asm/irq_regs.h> - -#include <linux/time.h> -#include <linux/timex.h> -#include <linux/profile.h> - -static inline int set_rtc_mmss(unsigned long nowtime) -{ - if (mach_set_clock_mmss) - return mach_set_clock_mmss (nowtime); - return -1; -} - -/* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "xtime_update()" routine every clocktick - */ -static irqreturn_t timer_interrupt(int irq, void *dummy) -{ - xtime_update(1); - update_process_times(user_mode(get_irq_regs())); - profile_tick(CPU_PROFILING); - -#ifdef CONFIG_HEARTBEAT - /* use power LED as a heartbeat instead -- much more useful - for debugging -- based on the version for PReP by Cort */ - /* acts like an actual heart beat -- ie thump-thump-pause... */ - if (mach_heartbeat) { - static unsigned cnt = 0, period = 0, dist = 0; - - if (cnt == 0 || cnt == dist) - mach_heartbeat( 1 ); - else if (cnt == 7 || cnt == dist+7) - mach_heartbeat( 0 ); - - if (++cnt > period) { - cnt = 0; - /* The hyperbolic function below modifies the heartbeat period - * length in dependency of the current (5min) load. It goes - * through the points f(0)=126, f(1)=86, f(5)=51, - * f(inf)->30. */ - period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; - dist = period / 4; - } - } -#endif /* CONFIG_HEARTBEAT */ - return IRQ_HANDLED; -} - -void read_persistent_clock(struct timespec *ts) -{ - struct rtc_time time; - ts->tv_sec = 0; - ts->tv_nsec = 0; - - if (mach_hwclk) { - mach_hwclk(0, &time); - - if ((time.tm_year += 1900) < 1970) - time.tm_year += 100; - ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday, - time.tm_hour, time.tm_min, time.tm_sec); - } -} - -void __init time_init(void) -{ - mach_sched_init(timer_interrupt); -} - -u32 arch_gettimeoffset(void) -{ - return mach_gettimeoffset() * 1000; -} - -static int __init rtc_init(void) -{ - struct platform_device *pdev; - - if (!mach_hwclk) - return -ENODEV; - - pdev = platform_device_register_simple("rtc-generic", -1, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - - return 0; -} - -module_init(rtc_init); diff --git a/arch/m68k/kernel/time_no.c b/arch/m68k/kernel/time_no.c deleted file mode 100644 index 87c7acd..0000000 --- a/arch/m68k/kernel/time_no.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/time.c - * - * Copyright (C) 1991, 1992, 1995 Linus Torvalds - * - * This file contains the m68k-specific time handling details. - * Most of the stuff is located in the machine specific files. - * - * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 - * "A Kernel Model for Precision Timekeeping" by Dave Mills - */ - -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/profile.h> -#include <linux/time.h> -#include <linux/timex.h> -#include <linux/rtc.h> - -#include <asm/machdep.h> -#include <asm/irq_regs.h> - -static inline int set_rtc_mmss(unsigned long nowtime) -{ - if (mach_set_clock_mmss) - return mach_set_clock_mmss (nowtime); - return -1; -} - -/* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "xtime_update()" routine every clocktick - */ -static irqreturn_t timer_interrupt(int irq, void *dummy) -{ - - if (current->pid) - profile_tick(CPU_PROFILING); - - xtime_update(1); - - update_process_times(user_mode(get_irq_regs())); - - return(IRQ_HANDLED); -} - -void read_persistent_clock(struct timespec *ts) -{ - struct rtc_time time; - ts->tv_sec = 0; - ts->tv_nsec = 0; - - if (mach_hwclk) { - mach_hwclk(0, &time); - - if ((time.tm_year += 1900) < 1970) - time.tm_year += 100; - ts->tv_sec = mktime(time.tm_year, time.tm_mon, time.tm_mday, - time.tm_hour, time.tm_min, time.tm_sec); - } -} - -void __init time_init(void) -{ - mach_sched_init(timer_interrupt); -} |
