From: "Li,Rongqing(ACG CCN)" <lirongqing@baidu.com>
To: "Srinivas Pandruvada" <srinivas.pandruvada@linux.intel.com>,
"Hans de Goede" <hansg@kernel.org>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
"platform-driver-x86@vger.kernel.org"
<platform-driver-x86@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: 答复: [PATCH][RFC] platform/x86: intel_speed_select: Use static_cpu_has for HWP check
Date: Sat, 28 Feb 2026 06:57:50 +0000 [thread overview]
Message-ID: <ad6453bb815f4445bd80239e96c827e5@baidu.com> (raw)
In-Reply-To: <20260228035108.2543-1-lirongqing@baidu.com>
> static bool disable_dynamic_sst_features(void)
> {
> - u64 value;
> -
> - rdmsrq(MSR_PM_ENABLE, value);
> - return !(value & 0x1);
> + return !static_cpu_has(X86_FEATURE_HWP);
> }
>
> #define _read_cp_info(name_str, name, offset, start, width, mult_factor)\
> --
static_cpu_has(X86_FEATURE_HWP) is different from value of MSR_PM_ENABLE, when intel_pstate=no_hwp is configured in kernel cmdline
Sorry for the noise, please drop this patch;
[Li,Rongqing]
> 2.9.4
next prev parent reply other threads:[~2026-02-28 6:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-28 3:51 lirongqing
2026-02-28 6:57 ` Li,Rongqing(ACG CCN) [this message]
2026-02-28 7:02 ` 答复: " srinivas pandruvada
2026-02-28 7:01 ` srinivas pandruvada
2026-02-28 7:22 ` 答复: [外部邮件] " Li,Rongqing(ACG CCN)
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