* [PATCH] cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode
[not found] <003901d8c22d$02447f70$06cd7e50$@telus.net>
@ 2022-09-06 20:28 ` Doug Smythies
2022-09-10 16:42 ` Rafael J. Wysocki
0 siblings, 1 reply; 2+ messages in thread
From: Doug Smythies @ 2022-09-06 20:28 UTC (permalink / raw)
To: 'srinivas pandruvada', lenb, 'Rafael J. Wysocki'
Cc: linux-pm, 'LKML', Doug Smythies, 'M. Cagri Ari'
Users may disable HWP in firmware, in which case intel_pstate wouldn't load
unless the CPU model is explicitly supported.
Add TIGERLAKE to the list of CPUs that can register intel_pstate while not
advertising the HWP capability. Without this change, an TIGERLAKE in no-HWP
mode could only use the acpi_cpufreq frequency scaling driver.
See also commits:
d8de7a44e11f: cpufreq: intel_pstate: Add Skylake servers support
fbdc21e9b038: cpufreq: intel_pstate: Add Icelake servers support in no-HWP mode
706c5328851d: cpufreq: intel_pstate: Add Cometlake support in no-HWP mode
Reported by: M. Cargi Ari <cagriari@pm.me>
Signed-off-by: Doug Smythies <dsmythies@telus.net>
---
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 57cdb3679885..fc3ebeb0bbe5 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2416,6 +2416,7 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
X86_MATCH(SKYLAKE_X, core_funcs),
X86_MATCH(COMETLAKE, core_funcs),
X86_MATCH(ICELAKE_X, core_funcs),
+ X86_MATCH(TIGERLAKE, core_funcs),
{}
};
MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode
2022-09-06 20:28 ` [PATCH] cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode Doug Smythies
@ 2022-09-10 16:42 ` Rafael J. Wysocki
0 siblings, 0 replies; 2+ messages in thread
From: Rafael J. Wysocki @ 2022-09-10 16:42 UTC (permalink / raw)
To: Doug Smythies
Cc: srinivas pandruvada, Len Brown, Rafael J. Wysocki, Linux PM,
LKML, M. Cagri Ari
On Tue, Sep 6, 2022 at 10:29 PM Doug Smythies <dsmythies@telus.net> wrote:
>
> Users may disable HWP in firmware, in which case intel_pstate wouldn't load
> unless the CPU model is explicitly supported.
>
> Add TIGERLAKE to the list of CPUs that can register intel_pstate while not
> advertising the HWP capability. Without this change, an TIGERLAKE in no-HWP
> mode could only use the acpi_cpufreq frequency scaling driver.
>
> See also commits:
> d8de7a44e11f: cpufreq: intel_pstate: Add Skylake servers support
> fbdc21e9b038: cpufreq: intel_pstate: Add Icelake servers support in no-HWP mode
> 706c5328851d: cpufreq: intel_pstate: Add Cometlake support in no-HWP mode
>
> Reported by: M. Cargi Ari <cagriari@pm.me>
> Signed-off-by: Doug Smythies <dsmythies@telus.net>
> ---
> 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 57cdb3679885..fc3ebeb0bbe5 100644
> --- a/drivers/cpufreq/intel_pstate.c
> +++ b/drivers/cpufreq/intel_pstate.c
> @@ -2416,6 +2416,7 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
> X86_MATCH(SKYLAKE_X, core_funcs),
> X86_MATCH(COMETLAKE, core_funcs),
> X86_MATCH(ICELAKE_X, core_funcs),
> + X86_MATCH(TIGERLAKE, core_funcs),
> {}
> };
> MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);
> --
Applied as 6.1 material, thanks!
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-09-10 16:42 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <003901d8c22d$02447f70$06cd7e50$@telus.net>
2022-09-06 20:28 ` [PATCH] cpufreq: intel_pstate: Add Tigerlake support in no-HWP mode Doug Smythies
2022-09-10 16:42 ` Rafael J. Wysocki
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.