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authorLaurent Vivier <lvivier@redhat.com>2015-08-25 16:16:21 +0200
committerLaurent Vivier <lvivier@redhat.com>2015-09-25 14:54:04 +0200
commit683dca6bd5057a87d9376475b0c7e30d56d8e532 (patch)
treee9a0ca88dcaf7bd08c4044b1ad0ff9c21478d57f /qga
parentc6acbe861f1ed4203f4864baf756686064ba561f (diff)
mips: remove muldiv64()
Originally, timers were ticks based, and it made sense to add ticks to current time to know when to trigger an alarm. But since commit: 7447545 change all other clock references to use nanosecond resolution accessors All timers use nanoseconds and we need to convert ticks to nanoseconds, by doing something like: y = muldiv64(x, get_ticks_per_sec(), TIMER_FREQ) where x is the number of device ticks and y the number of system ticks. y is used as nanoseconds in timer functions, it works because 1 tick is 1 nanosecond. (get_ticks_per_sec() is 10^9) But as MIPS timer frequency is 100 MHz, we can also do: y = x * 10; /* 100 MHz period is 10 ns */ Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Diffstat (limited to 'qga')
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