Prevent intel_pstate to load when OOB (Out Of Band) P-states mode is
enabled in Sapphire Rapids. The OOB identifying bits are same as the
prior generation CPUs like Ice Lake servers. So, also add Sapphire
Rapids to intel_pstate_cpu_oob_ids list.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
 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 846bb3a78788..76d59b3f35e4 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2424,6 +2424,7 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = {
 	X86_MATCH(BROADWELL_X,		core_funcs),
 	X86_MATCH(SKYLAKE_X,		core_funcs),
 	X86_MATCH(ICELAKE_X,		core_funcs),
+	X86_MATCH(SAPPHIRERAPIDS_X,	core_funcs),
 	{}
 };
 
-- 
2.31.1

On Mon, May 2, 2022 at 10:50 PM Srinivas Pandruvada
<srinivas.pandruvada@linux.intel.com> wrote:
>
> Prevent intel_pstate to load when OOB (Out Of Band) P-states mode is
> enabled in Sapphire Rapids. The OOB identifying bits are same as the
> prior generation CPUs like Ice Lake servers. So, also add Sapphire
> Rapids to intel_pstate_cpu_oob_ids list.
>
> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
> ---
>  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 846bb3a78788..76d59b3f35e4 100644
> --- a/drivers/cpufreq/intel_pstate.c
> +++ b/drivers/cpufreq/intel_pstate.c
> @@ -2424,6 +2424,7 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = {
>         X86_MATCH(BROADWELL_X,          core_funcs),
>         X86_MATCH(SKYLAKE_X,            core_funcs),
>         X86_MATCH(ICELAKE_X,            core_funcs),
> +       X86_MATCH(SAPPHIRERAPIDS_X,     core_funcs),
>         {}
>  };
>
> --

Applied as 5.19 material, thanks!