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cpufreq: intel_pstate: enable boost for Skylake Xeon

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Enable HWP boost on Skylake server and workstations.

Reported-by: Mel Gorman <mgorman@techsingularity.net>
Tested-by: Giovanni Gherdovich <ggherdovich@suse.cz>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Srinivas Pandruvada 2018-06-05 14:42:42 -07:00 committed by Rafael J. Wysocki
parent aaaece3de9
commit 41ab43c9c8
1 changed files with 10 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

10
drivers/cpufreq/intel_pstate.c
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@ -1794,6 +1794,12 @@ static const struct x86_cpu_id intel_pstate_cpu_ee_disable_ids[] = {
{} {}
}; };
static const struct x86_cpu_id intel_pstate_hwp_boost_ids[] = {
ICPU(INTEL_FAM6_SKYLAKE_X, core_funcs),
ICPU(INTEL_FAM6_SKYLAKE_DESKTOP, core_funcs),
{}
};
static int intel_pstate_init_cpu(unsigned int cpunum) static int intel_pstate_init_cpu(unsigned int cpunum)
{ {
struct cpudata *cpu; struct cpudata *cpu;
@ -1824,6 +1830,10 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
intel_pstate_disable_ee(cpunum); intel_pstate_disable_ee(cpunum);
intel_pstate_hwp_enable(cpu); intel_pstate_hwp_enable(cpu);
id = x86_match_cpu(intel_pstate_hwp_boost_ids);
if (id)
hwp_boost = true;
} }
intel_pstate_get_cpu_pstates(cpu); intel_pstate_get_cpu_pstates(cpu);