Subversion Repositories HelenOS-historic

Rev

Rev 1434 | Rev 1457 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1434 Rev 1438
Line 51... Line 51...
51
#include <sysinfo/sysinfo.h>
51
#include <sysinfo/sysinfo.h>
52
#include <arch/barrier.h>
52
#include <arch/barrier.h>
53
 
53
 
54
/* Pointers to public variables with time */
54
/* Pointers to public variables with time */
55
struct ptime {
55
struct ptime {
56
    __native seconds;
56
    __native seconds1;
57
    __native useconds;
57
    __native useconds;
58
    __native useconds2;
58
    __native seconds2;
59
};
59
};
60
struct ptime *public_time;
60
struct ptime *public_time;
61
/* Variable holding fragment of second, so that we would update
61
/* Variable holding fragment of second, so that we would update
62
 * seconds correctly
62
 * seconds correctly
63
 */
63
 */
Line 80... Line 80...
80
        panic("Cannot allocate page for clock");
80
        panic("Cannot allocate page for clock");
81
   
81
   
82
    public_time = (struct ptime *)PA2KA(faddr);
82
    public_time = (struct ptime *)PA2KA(faddr);
83
 
83
 
84
        /* TODO: We would need some arch dependent settings here */
84
        /* TODO: We would need some arch dependent settings here */
-
 
85
    public_time->seconds1 = 0;
85
    public_time->seconds = 0;
86
    public_time->seconds2 = 0;
86
    public_time->useconds = 0;
87
    public_time->useconds = 0;
87
 
88
 
88
    sysinfo_set_item_val("clock.faddr", NULL, (__native)faddr);
89
    sysinfo_set_item_val("clock.faddr", NULL, (__native)faddr);
89
}
90
}
90
 
91
 
Line 97... Line 98...
97
static void clock_update_counters(void)
98
static void clock_update_counters(void)
98
{
99
{
99
    if (CPU->id == 0) {
100
    if (CPU->id == 0) {
100
        secfrag += 1000000/HZ;
101
        secfrag += 1000000/HZ;
101
        if (secfrag >= 1000000) {
102
        if (secfrag >= 1000000) {
-
 
103
            secfrag -= 1000000;
102
            public_time->useconds = 0;
104
            public_time->seconds1++;
103
            write_barrier();
105
            write_barrier();
104
            public_time->seconds++;
106
            public_time->useconds = secfrag;
105
            secfrag = 0;
107
            write_barrier();
-
 
108
            public_time->seconds2 = public_time->seconds1;
106
        } else
109
        } else
107
            public_time->useconds += 1000000/HZ;
110
            public_time->useconds += 1000000/HZ;
108
        write_barrier();
-
 
109
        public_time->useconds2 = public_time->useconds;
-
 
110
        write_barrier();
-
 
111
    }
111
    }
112
}
112
}
113
 
113
 
114
/** Clock routine
114
/** Clock routine
115
 *
115
 *