diff options
Diffstat (limited to 'arch/alpha/kernel')
| -rw-r--r-- | arch/alpha/kernel/proto.h | 15 | ||||
| -rw-r--r-- | arch/alpha/kernel/time.c | 17 |
2 files changed, 18 insertions, 14 deletions
diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h index 2a6e3da8144..21f71287b6f 100644 --- a/arch/alpha/kernel/proto.h +++ b/arch/alpha/kernel/proto.h @@ -1,5 +1,7 @@ #include <linux/interrupt.h> +#include <linux/io.h> +#include <asm/pgtable.h> /* Prototypes of functions used across modules here in this directory. */ @@ -181,9 +183,16 @@ extern void titan_dispatch_irqs(u64, struct pt_regs *); extern void switch_to_system_map(void); extern void srm_paging_stop(void); -/* ../mm/remap.c */ -extern int __alpha_remap_area_pages(unsigned long, unsigned long, - unsigned long, unsigned long); +static inline int +__alpha_remap_area_pages(unsigned long address, unsigned long phys_addr, + unsigned long size, unsigned long flags) +{ + pgprot_t prot; + + prot = __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE + | _PAGE_KWE | flags); + return ioremap_page_range(address, address + size, phys_addr, prot); +} /* irq.c */ diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index b191cc75973..581ddcc22fc 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -54,8 +54,6 @@ #include "proto.h" #include "irq_impl.h" -extern unsigned long wall_jiffies; /* kernel/timer.c */ - static int set_rtc_mmss(unsigned long); DEFINE_SPINLOCK(rtc_lock); @@ -132,7 +130,7 @@ irqreturn_t timer_interrupt(int irq, void *dev, struct pt_regs * regs) nticks = delta >> FIX_SHIFT; while (nticks > 0) { - do_timer(regs); + do_timer(1); #ifndef CONFIG_SMP update_process_times(user_mode(regs)); #endif @@ -413,7 +411,7 @@ void do_gettimeofday(struct timeval *tv) { unsigned long flags; - unsigned long sec, usec, lost, seq; + unsigned long sec, usec, seq; unsigned long delta_cycles, delta_usec, partial_tick; do { @@ -423,14 +421,13 @@ do_gettimeofday(struct timeval *tv) sec = xtime.tv_sec; usec = (xtime.tv_nsec / 1000); partial_tick = state.partial_tick; - lost = jiffies - wall_jiffies; } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); #ifdef CONFIG_SMP /* Until and unless we figure out how to get cpu cycle counters in sync and keep them there, we can't use the rpcc tricks. */ - delta_usec = lost * (1000000 / HZ); + delta_usec = 0; #else /* * usec = cycles * ticks_per_cycle * 2**48 * 1e6 / (2**48 * ticks) @@ -446,8 +443,7 @@ do_gettimeofday(struct timeval *tv) */ delta_usec = (delta_cycles * state.scaled_ticks_per_cycle - + partial_tick - + (lost << FIX_SHIFT)) * 15625; + + partial_tick) * 15625; delta_usec = ((delta_usec / ((1UL << (FIX_SHIFT-6-1)) * HZ)) + 1) / 2; #endif @@ -480,12 +476,11 @@ do_settimeofday(struct timespec *tv) time. Without this, a full-tick error is possible. */ #ifdef CONFIG_SMP - delta_nsec = (jiffies - wall_jiffies) * (NSEC_PER_SEC / HZ); + delta_nsec = 0; #else delta_nsec = rpcc() - state.last_time; delta_nsec = (delta_nsec * state.scaled_ticks_per_cycle - + state.partial_tick - + ((jiffies - wall_jiffies) << FIX_SHIFT)) * 15625; + + state.partial_tick) * 15625; delta_nsec = ((delta_nsec / ((1UL << (FIX_SHIFT-6-1)) * HZ)) + 1) / 2; delta_nsec *= 1000; #endif |