x86: isolate the rtc code for sharing
The mach-default/mach_time.h code inline is moved to arch/x86/kernel/rtc.c
and the header files are adjusted.
Shrink the 3 dozen includes to the ones we really need.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/time_32.c b/arch/x86/kernel/time_32.c
index 8a322c9..e9ead76 100644
--- a/arch/x86/kernel/time_32.c
+++ b/arch/x86/kernel/time_32.c
@@ -28,98 +28,21 @@
* serialize accesses to xtime/lost_ticks).
*/
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
+#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/module.h>
-#include <linux/sysdev.h>
-#include <linux/bcd.h>
-#include <linux/efi.h>
#include <linux/mca.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/irq.h>
-#include <asm/msr.h>
-#include <asm/delay.h>
-#include <asm/mpspec.h>
-#include <asm/uaccess.h>
-#include <asm/processor.h>
-#include <asm/timer.h>
+#include <asm/arch_hooks.h>
+#include <asm/hpet.h>
#include <asm/time.h>
-#include "mach_time.h"
-
-#include <linux/timex.h>
-
-#include <asm/hpet.h>
-
-#include <asm/arch_hooks.h>
-
#include "io_ports.h"
-
-#include <asm/i8259.h>
-
#include "do_timer.h"
unsigned int cpu_khz; /* Detected as we calibrate the TSC */
EXPORT_SYMBOL(cpu_khz);
-DEFINE_SPINLOCK(rtc_lock);
-EXPORT_SYMBOL(rtc_lock);
-
-/*
- * This is a special lock that is owned by the CPU and holds the index
- * register we are working with. It is required for NMI access to the
- * CMOS/RTC registers. See include/asm-i386/mc146818rtc.h for details.
- */
-volatile unsigned long cmos_lock = 0;
-EXPORT_SYMBOL(cmos_lock);
-
-/* Routines for accessing the CMOS RAM/RTC. */
-unsigned char rtc_cmos_read(unsigned char addr)
-{
- unsigned char val;
- lock_cmos_prefix(addr);
- outb_p(addr, RTC_PORT(0));
- val = inb_p(RTC_PORT(1));
- lock_cmos_suffix(addr);
- return val;
-}
-EXPORT_SYMBOL(rtc_cmos_read);
-
-void rtc_cmos_write(unsigned char val, unsigned char addr)
-{
- lock_cmos_prefix(addr);
- outb_p(addr, RTC_PORT(0));
- outb_p(val, RTC_PORT(1));
- lock_cmos_suffix(addr);
-}
-EXPORT_SYMBOL(rtc_cmos_write);
-
-static int set_rtc_mmss(unsigned long nowtime)
-{
- int retval;
- unsigned long flags;
-
- /* gets recalled with irq locally disabled */
- /* XXX - does irqsave resolve this? -johnstul */
- spin_lock_irqsave(&rtc_lock, flags);
- retval = set_wallclock(nowtime);
- spin_unlock_irqrestore(&rtc_lock, flags);
-
- return retval;
-}
-
-
int timer_ack;
unsigned long profile_pc(struct pt_regs *regs)
@@ -137,7 +60,7 @@
/* Return address is either directly at stack pointer
or above a saved eflags. Eflags has bits 22-31 zero,
kernel addresses don't. */
- if (sp[0] >> 22)
+ if (sp[0] >> 22)
return sp[0];
if (sp[1] >> 22)
return sp[1];
@@ -193,26 +116,6 @@
return IRQ_HANDLED;
}
-/* not static: needed by APM */
-unsigned long read_persistent_clock(void)
-{
- unsigned long retval;
- unsigned long flags;
-
- spin_lock_irqsave(&rtc_lock, flags);
-
- retval = get_wallclock();
-
- spin_unlock_irqrestore(&rtc_lock, flags);
-
- return retval;
-}
-
-int update_persistent_clock(struct timespec now)
-{
- return set_rtc_mmss(now.tv_sec);
-}
-
extern void (*late_time_init)(void);
/* Duplicate of time_init() below, with hpet_enable part added */
void __init hpet_time_init(void)