Date: Wed, 15 Aug 2018 23:57:01 +0300 From: Greg V <greg@unrelenting.technology> To: Emmanuel Vadot <manu@bidouilliste.com> Cc: Ganbold Tsagaankhuu <ganbold@gmail.com>, freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: Rockchip RK3399 (ROCKPro64) boots to multiuser Message-ID: <1534366621.3897.2@hraggstad.unrelenting.technology> In-Reply-To: <20180815224449.98b920836c2c7f8610449835@bidouilliste.com> References: <1533577708.4175.0@hraggstad.unrelenting.technology> <CAGtf9xP8qsindy8zu9e%2B1TkRySqp-Sis22LZQ7f=W%2BMkK6rZOg@mail.gmail.com> <1534253037.1656.0@hraggstad.unrelenting.technology> <CAGtf9xM5oZowxFgrTn3CfbM=g5Jd9g3ZgzZJP=m1Tn8ii2kVuA@mail.gmail.com> <20180815105602.b106e1f55a3f839880b1b60e@bidouilliste.com> <CAGtf9xPKe6s16Y=Qo=s6mHogzvLM%2B5=NQCCNUDvTGLQL=6CezA@mail.gmail.com> <1534362095.3897.1@hraggstad.unrelenting.technology> <20180815224449.98b920836c2c7f8610449835@bidouilliste.com>
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On Wed, Aug 15, 2018 at 11:44 PM, Emmanuel Vadot=20 <manu@bidouilliste.com> wrote: > On Wed, 15 Aug 2018 22:41:34 +0300 > Greg V <greg@unrelenting.technology> wrote: >> Alright everyone, good news ? I managed to reclock the CPU!!! >>=20 >> The patch is now at https://reviews.freebsd.org/D16732 >=20 > Thanks a lot !! > I'll have a deeper look when I'm back from BSDCam. >=20 >> (and I think the style is more correct now. Though it's really=20 >> fscking >> silly that the style doesn't like making "table-like" structures=20 >> look >> like tables, i.e. with one-line "rows".) >>=20 >> Plus the hack you need to reclock the CPU right now at >> https://gist.github.com/myfreeweb/88cb9340652f56498f4be770c77b9d61 >>=20 >> (the hack allows cpufreq_dt to deal with clock only, no voltage ? >> since we don't have all the drivers for voltage.) >=20 > Are you able to switch to any frequency with that ? > I would expect the cpu to hang if the voltage is too low or too high. > (I encounter that on RK3328) Yeah =97 I maxed the clocks for both big and LITTLE cores and got=20 pretty great performance. e.g. unixbench dhrystone index with cpuset to a big core: 804 =97 which=20 is more than the 737 I got on Scaleway's ThunderX VPS! ThunderX is still way better on unixbench's other tests though. Not that unixbench is a great test=85 Compiling neovim also took *way* less time than on RPi/ROCK64. So, I think the big cores' voltage regulator (silergy,syr827) might=20 just default to the highest voltage. The chip gets rather warm when just idling in FreeBSD=85 =
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