From: Adamos Ttofari Date: Fri, 12 Nov 2021 09:16:57 +0000 (+0000) Subject: cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d10ecfd9518e35eb33ab42531cb4fb41809db8d9;p=linux.git 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 --- diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 3e56a4a1d1d3a..e15c3bc17a55c 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), {} };