在2024年7月9日七月 上午12:36，Daniel Lezcano写道： > On 11/05/2024 12:43, Aleksandar Rikalo wrote: >> From: Paul Burton <paulburton@xxxxxxxxxx> >> >> In a multi-cluster MIPS system we have multiple GICs - one in each >> cluster - each of which has its own independent counter. The counters in >> each GIC are not synchronised in any way, so they can drift relative to >> one another through the lifetime of the system. This is problematic for >> a clocksource which ought to be global. >> >> Avoid problems by always accessing cluster 0's counter, using >> cross-cluster register access. This adds overhead so we only do so on >> systems where we actually have CPUs present in multiple clusters. >> For now, be extra conservative and don't use gic counter for vdso or >> sched_clock in this case. >> >> Signed-off-by: Paul Burton <paulburton@xxxxxxxxxx> >> Signed-off-by: Chao-ying Fu <cfu@xxxxxxxxxxxx> >> Signed-off-by: Dragan Mladjenovic <dragan.mladjenovic@xxxxxxxxxx> >> Signed-off-by: Aleksandar Rikalo <aleksandar.rikalo@xxxxxxxxxx> >> --- > > Applied patch 7 and 8 I think it won't compile without patch 1 being applid. Thomas, do you mind to apply patch 1 for now? Given that it's just some extra function definitions. Thanks - Jiaxun > > Thanks > > -- > <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs > > Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | > <http://twitter.com/#!/linaroorg> Twitter | > <http://www.linaro.org/linaro-blog/> Blog -- - Jiaxun
