[RFC/RFT] [PATCH 10/10] cpufreq: intel_pstate: enable boost for SKX

Srinivas Pandruvada
2018-05-16T04:49:36Z

Enable HWP boost on Skylake server platform.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
drivers/cpufreq/intel_pstate.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 65d11d2..827c003 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1863,6 +1863,11 @@ static const struct x86_cpu_id intel_pstate_cpu_ee_disable_ids[] = {
{}
};

+static const struct x86_cpu_id intel_pstate_hwp_boost_ids[] __initconst = {
+ ICPU(INTEL_FAM6_SKYLAKE_X, core_funcs),
+ {}
+};
+
static int intel_pstate_init_cpu(unsigned int cpunum)
{
struct cpudata *cpu;
@@ -1893,6 +1898,10 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
intel_pstate_disable_ee(cpunum);

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);
--
2.9.5