Messages in this thread | | | Subject | Re: [PATCH] clocksource/drivers/pistachio: Fix wrong calculated clocksource read value | From | Daniel Lezcano <> | Date | Tue, 15 Dec 2015 21:59:30 +0100 |
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On 11/25/2015 04:42 PM, Jisheng Zhang wrote: > Let's assume the counter value is 0xf000000, the pistachio clocksource > read cycles function would return 0xffffffff0fffffff, but it should > return 0xfffffff. > > We fix this issue by calculating bitwise-not counter, then cast to > cycle_t. > > Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Hi Jisheng,
I tried to reproduce this behavior on x86_64 but without success.
On which architecture did you produce this result ? Do you have a simple test program to check with ?
Thanks
-- Daniel
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