diff options
| author | Jeff Garzik <jeff@garzik.org> | 2006-04-12 16:54:43 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-04-12 16:54:43 -0400 |
| commit | a890b15c0990cc8d686edcc85f5fccde71ad5ce9 (patch) | |
| tree | 73162355b58283a2531f13fbbf663809f95c1483 /include/linux/jiffies.h | |
| parent | 79fa1b677be3a985cc66b9218a4dd09818f1051b (diff) | |
| parent | 26ec634c31a11a003040e10b4d650495158632fd (diff) | |
Merge branch 'upstream'
Diffstat (limited to 'include/linux/jiffies.h')
| -rw-r--r-- | include/linux/jiffies.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h index 99905e18053..043376920f5 100644 --- a/include/linux/jiffies.h +++ b/include/linux/jiffies.h @@ -36,6 +36,8 @@ /* LATCH is used in the interval timer and ftape setup. */ #define LATCH ((CLOCK_TICK_RATE + HZ/2) / HZ) /* For divider */ +#define LATCH_HPET ((HPET_TICK_RATE + HZ/2) / HZ) + /* Suppose we want to devide two numbers NOM and DEN: NOM/DEN, the we can * improve accuracy by shifting LSH bits, hence calculating: * (NOM << LSH) / DEN @@ -51,9 +53,13 @@ /* HZ is the requested value. ACTHZ is actual HZ ("<< 8" is for accuracy) */ #define ACTHZ (SH_DIV (CLOCK_TICK_RATE, LATCH, 8)) +#define ACTHZ_HPET (SH_DIV (HPET_TICK_RATE, LATCH_HPET, 8)) + /* TICK_NSEC is the time between ticks in nsec assuming real ACTHZ */ #define TICK_NSEC (SH_DIV (1000000UL * 1000, ACTHZ, 8)) +#define TICK_NSEC_HPET (SH_DIV(1000000UL * 1000, ACTHZ_HPET, 8)) + /* TICK_USEC is the time between ticks in usec assuming fake USER_HZ */ #define TICK_USEC ((1000000UL + USER_HZ/2) / USER_HZ) |