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@intel.com>
Subject: [patch 0/2] Support for IA32_ENERGY_PERF_BIAS MSR
Date: Tue, 02 Mar 2010 16:06:49 -0800 [thread overview]
Message-ID: <20100303000649.757684000@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>
--
next reply other threads:[~2010-03-03 0:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-03 0:06 venkatesh.pallipadi [this message]
2010-03-03 0:06 ` [patch 1/2] x86: Look for IA32_ENERGY_PERF_BIAS support venkatesh.pallipadi
2010-03-03 0:06 ` [patch 2/2] x86: Manage ENERGY_PERF_BIAS based on cpufreq governor venkatesh.pallipadi
2010-03-03 0:30 ` Randy Dunlap
2010-03-03 17:52 ` Pallipadi, Venkatesh
2010-03-03 21:57 ` Pavel Machek
2010-03-04 0:27 ` Pallipadi, Venkatesh
2010-03-05 9:19 ` Pavel Machek
2010-03-05 14:36 ` Pallipadi, Venkatesh
2010-03-05 20:40 ` Pavel Machek
2010-03-05 20:55 ` Matthew Garrett
2010-03-05 21:13 ` Pavel Machek
2010-03-05 22:49 ` Matthew Garrett
2010-03-06 6:43 ` Pavel Machek
2010-03-03 16:40 ` Matthew Garrett
2010-03-03 17:55 ` Pallipadi, Venkatesh
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