From d10ecfd9518e35eb33ab42531cb4fb41809db8d9 Mon Sep 17 00:00:00 2001 From: Adamos Ttofari Date: Fri, 12 Nov 2021 09:16:57 +0000 Subject: [PATCH] cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs [ Upstream commit cd23f02f166892603eb9f2d488152b975872b682 ] Commit fbdc21e9b038 ("cpufreq: intel_pstate: Add Icelake servers support in no-HWP mode") enabled the use of Intel P-State driver for Ice Lake servers. But it doesn't cover the case when OS can't control P-States. Therefore, for Ice Lake server, if MSR_MISC_PWR_MGMT bits 8 or 18 are enabled, then the Intel P-State driver should exit as OS can't control P-States. Fixes: fbdc21e9b038 ("cpufreq: intel_pstate: Add Icelake servers support in no-HWP mode") Signed-off-by: Adamos Ttofari Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/cpufreq/intel_pstate.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 3e56a4a..e15c3bc 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -2255,6 +2255,7 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = { X86_MATCH(BROADWELL_D, core_funcs), X86_MATCH(BROADWELL_X, core_funcs), X86_MATCH(SKYLAKE_X, core_funcs), + X86_MATCH(ICELAKE_X, core_funcs), {} }; -- 2.7.4