From: Thomas Renninger Date: Thu, 21 Jul 2011 09:54:54 +0000 (+0200) Subject: cpupower: Do detect IDA (opportunistic processor performance) via cpuid X-Git-Tag: v3.1-rc1~107^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=029e9f73667f9b4661ac9886f706d75d26850260;p=pandora-kernel.git cpupower: Do detect IDA (opportunistic processor performance) via cpuid IA32-Intel Devel guide Volume 3A - 14.3.2.1 ------------------------------------------- ... Opportunistic processor performance operation can be disabled by setting bit 38 of IA32_MISC_ENABLES. This mechanism is intended for BIOS only. If IA32_MISC_ENABLES[38] is set, CPUID.06H:EAX[1] will return 0. Better detect things via cpuid, this cleans up the code a bit and the MSR parts were not working correctly anyway. Signed-off-by: Thomas Renninger CC: lenb@kernel.org CC: linux@dominikbrodowski.net CC: cpufreq@vger.kernel.org Signed-off-by: Dominik Brodowski --- Reading git-diff-tree failed