Messages in this thread | | | From | "Yuan, Perry" <> | Subject | RE: [PATCH v3 0/5] AMD Pstate driver Urgent Change | Date | Tue, 22 Nov 2022 02:16:14 +0000 |
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[AMD Official Use Only - General]
Hi Rafael
> -----Original Message----- > From: Rafael J. Wysocki <rafael@kernel.org> > Sent: Tuesday, November 22, 2022 3:24 AM > To: Yuan, Perry <Perry.Yuan@amd.com> > Cc: rafael.j.wysocki@intel.com; Huang, Ray <Ray.Huang@amd.com>; > viresh.kumar@linaro.org; Limonciello, Mario <Mario.Limonciello@amd.com>; > Fontenot, Nathan <Nathan.Fontenot@amd.com>; Deucher, Alexander > <Alexander.Deucher@amd.com>; Sharma, Deepak > <Deepak.Sharma@amd.com>; Huang, Shimmer <Shimmer.Huang@amd.com>; > Meng, Li (Jassmine) <Li.Meng@amd.com>; Du, Xiaojian > <Xiaojian.Du@amd.com>; Karny, Wyes <Wyes.Karny@amd.com>; Shenoy, > Gautham Ranjal <gautham.shenoy@amd.com>; Narayan, Ananth > <Ananth.Narayan@amd.com>; linux-pm@vger.kernel.org; linux- > kernel@vger.kernel.org > Subject: Re: [PATCH v3 0/5] AMD Pstate driver Urgent Change > > Caution: This message originated from an External Source. Use proper caution > when opening attachments, clicking links, or responding. > > > On Thu, Nov 17, 2022 at 8:36 AM Perry Yuan <Perry.Yuan@amd.com> wrote: > > > > The patchset changed amd-pstate driver as built-in type to resolve the > > driver loading sequence problem, otherwise the acpi-cpufreq driver > > will be loaded as the default cpufreq scaling driver instead of amd-pstate. > > > > Some new kernel parameters are added to allow user to disable pstate > > driver and load driver with passive mode which use governors to do the > > frequency scaling control. > > > > * `amd_pstate=disabled` or no parameters will not load pstate driver. > > * `amd_pstate=passive` will load pstate driver with passive mode. > > > > Set the `amd_pstate` driver disabled by default because of performance > > degradation on a number of AMD ASICs in the passive mode driver, > > especially the shared memory support processors. > > > > EPP support for the amd_pstate driver is under review. With EPP > > support, the said performance issue is resolved. Once that gets > > upstream, the `active` mode amd_pstate_epp driver may be enabled by > default. > > > > Changes from v2: > > * pick up Acked-by flag of Huang Rui > > * fix typo in the cover letter > > > > Changes from v1: > > * fix commit info in v1 patch PATCH 4/5 > > * pick up Reviewed-by flag of Gautham R. Shenoy > > * pick up Tested-by flag of Wyes Karny > > > > v2: > > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore > > .kernel.org%2Flkml%2F20221117071910.3347052-1- > Perry.Yuan%40amd.com%2F& > > > amp;data=05%7C01%7CPerry.Yuan%40amd.com%7C03f823ca38cf46b1994f0 > 8dacbf5 > > > f499%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63804655448 > 7752737%7 > > > CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJB > TiI6Ik1 > > > haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=L3At1qrtRjPH%2 > Bpve%2BpLC > > b%2B%2BGektsGn4LH9RcNwYfhlU%3D&reserved=0 > > v1: > > https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore > > .kernel.org%2Flkml%2F20221117024955.3319484-1- > Perry.Yuan%40amd.com%2F& > > > amp;data=05%7C01%7CPerry.Yuan%40amd.com%7C03f823ca38cf46b1994f0 > 8dacbf5 > > > f499%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63804655448 > 7752737%7 > > > CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJB > TiI6Ik1 > > > haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=N6MhiQEIWPLkv > kbwzycrKbky > > E34fmjDydQxr7FwJSMQ%3D&reserved=0 > > > > Perry Yuan (4): > > cpufreq: amd-pstate: change amd-pstate driver to be built-in type > > cpufreq: amd-pstate: add amd-pstate driver parameter for mode > > selection > > Documentation: amd-pstate: add driver working mode introduction > > Documentation: add amd-pstate kernel command line options > > > > Wyes Karny (1): > > cpufreq: amd-pstate: cpufreq: amd-pstate: reset MSR_AMD_PERF_CTL > > register at init > > > > .../admin-guide/kernel-parameters.txt | 11 +++++ > > Documentation/admin-guide/pm/amd-pstate.rst | 30 +++++------- > > drivers/cpufreq/Kconfig.x86 | 2 +- > > drivers/cpufreq/amd-pstate.c | 49 +++++++++++++------ > > 4 files changed, 59 insertions(+), 33 deletions(-) > > > > -- > > I have applied this series as 6.1-rc7 material. > > Please let me know if you'd rather want to defer it till 6.2-rc1. > > Thanks!
Cool! Thank you help to pick up the patches as 6.1-rc7 material.
Perry. [unhandled content-type:application/ms-tnef] | |