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#include "local.h"
#include <linux/timer.h>
#include <linux/fs.h>
#include <asm/delay.h>
DECLARE_INITVAR(dde26_timer);
/* Definitions from linux/kernel/timer.c */
/*
* per-CPU timer vector definitions:
*/
#define TVN_BITS (CONFIG_BASE_SMALL ? 4 : 6)
#define TVR_BITS (CONFIG_BASE_SMALL ? 6 : 8)
#define TVN_SIZE (1 << TVN_BITS)
#define TVR_SIZE (1 << TVR_BITS)
#define TVN_MASK (TVN_SIZE - 1)
#define TVR_MASK (TVR_SIZE - 1)
typedef struct tvec_s {
struct list_head vec[TVN_SIZE];
} tvec_t;
typedef struct tvec_root_s {
struct list_head vec[TVR_SIZE];
} tvec_root_t;
struct tvec_base {
spinlock_t lock;
struct timer_list *running_timer;
unsigned long timer_jiffies;
tvec_root_t tv1;
tvec_t tv2;
tvec_t tv3;
tvec_t tv4;
tvec_t tv5;
} ____cacheline_aligned_in_smp;
typedef struct tvec_t_base_s tvec_base_t;
struct tvec_base boot_tvec_bases __attribute__((unused));
static DEFINE_PER_CPU(struct tvec_base *, tvec_bases) __attribute__((unused)) = &boot_tvec_bases;
void init_timer(struct timer_list *timer)
{
timer->ddekit_timer_id = DDEKIT_INVALID_TIMER_ID;
}
void add_timer(struct timer_list *timer)
{
CHECK_INITVAR(dde26_timer);
/* DDE2.6 uses jiffies and HZ as exported from L4IO. Therefore
* we just need to hand over the timeout to DDEKit. */
timer->ddekit_timer_id = ddekit_add_timer((void *)timer->function,
(void *)timer->data,
timer->expires);
}
void add_timer_on(struct timer_list *timer, int cpu)
{
add_timer(timer);
}
int del_timer(struct timer_list * timer)
{
int ret;
CHECK_INITVAR(dde26_timer);
ret = ddekit_del_timer(timer->ddekit_timer_id);
timer->ddekit_timer_id = DDEKIT_INVALID_TIMER_ID;
return ret >= 0;
}
int del_timer_sync(struct timer_list *timer)
{
return del_timer(timer);
}
int __mod_timer(struct timer_list *timer, unsigned long expires)
{
/* XXX: Naive implementation. If we really need to be fast with
* this function, we can implement a faster version inside
* the DDEKit. Bjoern just does not think that this is the
* case.
*/
int r;
CHECK_INITVAR(dde26_timer);
r = del_timer(timer);
timer->expires = expires;
add_timer(timer);
return (r > 0);
}
int mod_timer(struct timer_list *timer, unsigned long expires)
{
return __mod_timer(timer, expires);
}
int timer_pending(const struct timer_list *timer)
{
CHECK_INITVAR(dde26_timer);
/* There must be a valid DDEKit timer ID in the timer field
* *AND* it must be pending in the DDEKit.
*/
return ((timer->ddekit_timer_id != DDEKIT_INVALID_TIMER_ID)
&& ddekit_timer_pending(timer->ddekit_timer_id));
}
/**
* msleep - sleep safely even with waitqueue interruptions
* @msecs: Time in milliseconds to sleep for
*/
void msleep(unsigned int msecs)
{
ddekit_thread_msleep(msecs);
}
void __const_udelay(unsigned long xloops)
{
ddekit_thread_usleep(xloops);
}
void __udelay(unsigned long usecs)
{
ddekit_thread_usleep(usecs);
}
void __ndelay(unsigned long nsecs)
{
ddekit_thread_nsleep(nsecs);
}
void __init l4dde26_init_timers(void)
{
ddekit_init_timers();
l4dde26_process_from_ddekit(ddekit_get_timer_thread());
INITIALIZE_INITVAR(dde26_timer);
}
core_initcall(l4dde26_init_timers);
extern unsigned long volatile __jiffy_data jiffies;
__attribute__((weak)) void do_gettimeofday (struct timeval *tv)
{
WARN_UNIMPL;
}
struct timespec current_fs_time(struct super_block *sb)
{
struct timespec now = {0,0};
WARN_UNIMPL;
return now;
}
ktime_t ktime_get_real(void)
{
struct timespec now = {0,0};
WARN_UNIMPL;
return timespec_to_ktime(now);
}
void native_io_delay(void)
{
udelay(2);
}
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