Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.1 112/123] intel_pstate: Add get_scaling cpu_defaults param to Knights Landing | Date | Sat, 8 Aug 2015 15:09:50 -0700 |
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4.1-stable review patch. If anyone has any objections, please let me know.
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From: Lukasz Anaczkowski <lukasz.anaczkowski@intel.com>
commit 69cefc273f942bd7bb347a02e8b5b738d5f6e6f3 upstream.
Scaling for Knights Landing is same as the default scaling (100000). When Knigts Landing support was added to the pstate driver, this parameter was omitted resulting in a kernel panic during boot.
Fixes: b34ef932d79a (intel_pstate: Knights Landing support) Reported-by: Yasuaki Ishimatsu <yishimat@redhat.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Lukasz Anaczkowski <lukasz.anaczkowski@intel.com> Acked-by: Kristen Carlson Accardi <kristen@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/cpufreq/intel_pstate.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -678,6 +678,7 @@ static struct cpu_defaults knl_params = .get_max = core_get_max_pstate, .get_min = core_get_min_pstate, .get_turbo = knl_get_turbo_pstate, + .get_scaling = core_get_scaling, .set = core_set_pstate, }, };
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