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ia64: Replace clocksource.fsys_mmio with generic arch data 

Now that clocksource.archdata is available, use it for ia64-specific
code.

Cc: Clemens Ladisch <clemens@ladisch.de>
Cc: linux-ia64@vger.kernel.org
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/d31de0ee0842a0e322fb6441571c2b0adb323fa2.1310563276.git.luto@mit.edu
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Andy Lutomirski 2011-07-13 09:24:15 -04:00 committed by H. Peter Anvin
parent 98d0ac38ca
commit 574c44fa8f
6 changed files with 16 additions and 11 deletions
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12
arch/ia64/include/asm/clocksource.h Normal file
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@ -0,0 +1,12 @@
/* IA64-specific clocksource additions */
#ifndef _ASM_IA64_CLOCKSOURCE_H
#define _ASM_IA64_CLOCKSOURCE_H
#define __ARCH_HAS_CLOCKSOURCE_DATA
struct arch_clocksource_data {
void *fsys_mmio; /* used by fsyscall asm code */
};
#endif /* _ASM_IA64_CLOCKSOURCE_H */

2
arch/ia64/kernel/cyclone.c
View File

@ -115,7 +115,7 @@ int __init init_cyclone_clock(void)
}
/* initialize last tick */
cyclone_mc = cyclone_timer;
clocksource_cyclone.fsys_mmio = cyclone_timer;
clocksource_cyclone.archdata.fsys_mmio = cyclone_timer;
clocksource_register_hz(&clocksource_cyclone, CYCLONE_TIMER_FREQ);
return 0;

2
arch/ia64/kernel/time.c
View File

@ -468,7 +468,7 @@ void update_vsyscall(struct timespec *wall, struct timespec *wtm,
fsyscall_gtod_data.clk_mask = c->mask;
fsyscall_gtod_data.clk_mult = mult;
fsyscall_gtod_data.clk_shift = c->shift;
fsyscall_gtod_data.clk_fsys_mmio = c->fsys_mmio;
fsyscall_gtod_data.clk_fsys_mmio = c->archdata.fsys_mmio;
fsyscall_gtod_data.clk_cycle_last = c->cycle_last;
/* copy kernel time structures */

2
arch/ia64/sn/kernel/sn2/timer.c
View File

@ -54,7 +54,7 @@ ia64_sn_udelay (unsigned long usecs)
void __init sn_timer_init(void)
{
clocksource_sn2.fsys_mmio = RTC_COUNTER_ADDR;
clocksource_sn2.archdata.fsys_mmio = RTC_COUNTER_ADDR;
clocksource_register_hz(&clocksource_sn2, sn_rtc_cycles_per_second);
ia64_udelay = &ia64_sn_udelay;

2
drivers/char/hpet.c
View File

@ -931,7 +931,7 @@ int hpet_alloc(struct hpet_data *hdp)
#ifdef CONFIG_IA64
if (!hpet_clocksource) {
hpet_mctr = (void __iomem *)&hpetp->hp_hpet->hpet_mc;
CLKSRC_FSYS_MMIO_SET(clocksource_hpet.fsys_mmio, hpet_mctr);
clocksource_hpet.archdata.fsys_mmio = hpet_mctr;
clocksource_register_hz(&clocksource_hpet, hpetp->hp_tick_freq);
hpetp->hp_clocksource = &clocksource_hpet;
hpet_clocksource = &clocksource_hpet;

7
include/linux/clocksource.h
View File

@ -171,13 +171,6 @@ struct clocksource {
u32 shift;
u64 max_idle_ns;
#ifdef CONFIG_IA64
void *fsys_mmio; /* used by fsyscall asm code */
#define CLKSRC_FSYS_MMIO_SET(mmio, addr) ((mmio) = (addr))
#else
#define CLKSRC_FSYS_MMIO_SET(mmio, addr) do { } while (0)
#endif
#ifdef __ARCH_HAS_CLOCKSOURCE_DATA
struct arch_clocksource_data archdata;
#endif