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 <trenn@suse.de>
CC: lenb@kernel.org
CC: linux@dominikbrodowski.net
CC: cpufreq@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 0 insertions, 23 deletions

diff --git a/tools/power/cpupower/utils/helpers/msr.c b/tools/power/cpupower/utils/helpers/msr.c
index 7869ca6..31a4b24 100644
--- a/tools/power/cpupower/utils/helpers/msr.c
+++ b/tools/power/cpupower/utils/helpers/msr.c
@@ -72,29 +72,6 @@ int write_msr(int cpu, unsigned int idx, unsigned long long val)
 	return -1;
 }
 
-int msr_intel_has_boost_support(unsigned int cpu)
-{
-	unsigned long long misc_enables;
-	int ret;
-
-	ret = read_msr(cpu, MSR_IA32_MISC_ENABLES, &misc_enables);
-	if (ret)
-		return ret;
-
-	return (misc_enables >> 38) & 0x1;
-}
-
-int msr_intel_boost_is_active(unsigned int cpu)
-{
-	unsigned long long perf_status;
-	int ret;
-
-	ret = read_msr(cpu, MSR_IA32_PERF_STATUS, &perf_status);
-	if (ret)
-		return ret;
-	return (perf_status >> 32) & 0x1;
-}
-
 int msr_intel_get_perf_bias(unsigned int cpu)
 {
 	unsigned long long val;