2022-11-21 15:55:55

by Giovanni Gherdovich

Subject: [PATCH] cpufreq: intel_pstate: Add Sapphire Rapids support in no-HWP mode

Users may disable HWP in firmware, in which case intel_pstate wouldn't load
unless the CPU model is explicitly supported.

See also the following past commits:

commit d8de7a44e11f ("cpufreq: intel_pstate: Add Skylake servers support")
commit 706c5328851d ("cpufreq: intel_pstate: Add Cometlake support in
no-HWP mode")
commit fbdc21e9b038 ("cpufreq: intel_pstate: Add Icelake servers support in
no-HWP mode")
commit 71bb5c82aaae ("cpufreq: intel_pstate: Add Tigerlake support in
no-HWP mode")

Signed-off-by: Giovanni Gherdovich <[email protected]>
---
drivers/cpufreq/intel_pstate.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 6ff73c30769f..181cd6b045ff 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2378,6 +2378,7 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
X86_MATCH(COMETLAKE, core_funcs),
X86_MATCH(ICELAKE_X, core_funcs),
X86_MATCH(TIGERLAKE, core_funcs),
+ X86_MATCH(SAPPHIRERAPIDS_X, core_funcs),
{}
};
MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);
--
2.31.1

2022-11-30 19:43:24

by Rafael J. Wysocki

Subject: Re: [PATCH] cpufreq: intel_pstate: Add Sapphire Rapids support in no-HWP mode

On Mon, Nov 21, 2022 at 4:35 PM Giovanni Gherdovich <[email protected]> wrote:
>
> Users may disable HWP in firmware, in which case intel_pstate wouldn't load
> unless the CPU model is explicitly supported.
>
> See also the following past commits:
>
> commit d8de7a44e11f ("cpufreq: intel_pstate: Add Skylake servers support")
> commit 706c5328851d ("cpufreq: intel_pstate: Add Cometlake support in
> no-HWP mode")
> commit fbdc21e9b038 ("cpufreq: intel_pstate: Add Icelake servers support in
> no-HWP mode")
> commit 71bb5c82aaae ("cpufreq: intel_pstate: Add Tigerlake support in
> no-HWP mode")
>
> Signed-off-by: Giovanni Gherdovich <[email protected]>
> ---
> drivers/cpufreq/intel_pstate.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
> index 6ff73c30769f..181cd6b045ff 100644
> --- a/drivers/cpufreq/intel_pstate.c
> +++ b/drivers/cpufreq/intel_pstate.c
> @@ -2378,6 +2378,7 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
> X86_MATCH(COMETLAKE, core_funcs),
> X86_MATCH(ICELAKE_X, core_funcs),
> X86_MATCH(TIGERLAKE, core_funcs),
> + X86_MATCH(SAPPHIRERAPIDS_X, core_funcs),
> {}
> };
> MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);
> --

Applied as 6.2 material, thanks!