From: venkatesh.pallipadi@intel.com
To: Ingo Molnar <mingo@elte.hu>, H Peter Anvin <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>, Len Brown <lenb@kernel.org>,
Dave Jones <davej@redhat.com>
Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
Venkatesh Pallipadi <venkatesh.pallipadi@gmail.com>
Subject: [patch 0/2] Support for IA32_ENERGY_PERF_BIAS MSR - v2
Date: Thu, 04 Mar 2010 15:14:54 -0800 [thread overview]
Message-ID: <20100304231454.247805000@intel.com> (raw)
There is a new hardware feature, which lets system software to set
Energy Performance Preference. This is a opaque knob in the form of
IA32_ENERGY_PERF_BIAS MSR, which has a 4 bit Energy Performance
Preference Hint.
The support for this feature is indicated by CPUID.06H.ECX.bit3. Refer to
Intel Architectures Software Developer's Manual for more info.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
---
Modification from first version - Revised kernel parameter documentation.
--
next reply other threads:[~2010-03-04 23:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-04 23:14 venkatesh.pallipadi [this message]
2010-03-04 23:14 ` [patch 1/2] x86: Look for IA32_ENERGY_PERF_BIAS support - v2 venkatesh.pallipadi
2010-06-04 3:22 ` [PATCH] x86: Look for IA32_ENERGY_PERF_BIAS support - v3 Len Brown
2010-06-16 20:42 ` [tip:x86/cpu] x86: Look for IA32_ENERGY_PERF_BIAS support tip-bot for Venkatesh Pallipadi
2010-03-04 23:14 ` [patch 2/2] x86: Manage ENERGY_PERF_BIAS based on cpufreq governor - v2 venkatesh.pallipadi
2010-03-04 23:27 ` Dave Jones
2010-03-04 23:34 ` Pallipadi, Venkatesh
2010-06-04 3:38 ` Len Brown
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