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| author | Prarit Bhargava <prarit@redhat.com> | 2015-10-22 15:43:31 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-11-02 02:01:18 +0100 |
| commit | 539342f60b93c9f98c47f75b63fe5b8b13c1d226 (patch) | |
| tree | 893e212e5c9cf64fb82b34ca1c4db3dcb2ccea59 /drivers/cpufreq/intel_pstate.c | |
| parent | cpufreq: arm_big_little: fix frequency check when bL switcher is active (diff) | |
| download | linux-539342f60b93c9f98c47f75b63fe5b8b13c1d226.tar.xz linux-539342f60b93c9f98c47f75b63fe5b8b13c1d226.zip | |
intel_pstate: decrease number of "HWP enabled" messages
When booting an HWP enabled system the kernel displays one "HWP enabled"
message for each cpu. The messages are superfluous since HWP is globally
enabled across all CPUs. This patch also adds an informational message
when HWP is disabled via intel_pstate=no_hwp.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 93a3c635ea27..2e31d097def6 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -684,8 +684,6 @@ static void __init intel_pstate_sysfs_expose_params(void) static void intel_pstate_hwp_enable(struct cpudata *cpudata) { - pr_info("intel_pstate: HWP enabled\n"); - wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1); } @@ -1557,8 +1555,10 @@ static int __init intel_pstate_init(void) if (!all_cpu_data) return -ENOMEM; - if (static_cpu_has_safe(X86_FEATURE_HWP) && !no_hwp) + if (static_cpu_has_safe(X86_FEATURE_HWP) && !no_hwp) { + pr_info("intel_pstate: HWP enabled\n"); hwp_active++; + } if (!hwp_active && hwp_only) goto out; @@ -1593,8 +1593,10 @@ static int __init intel_pstate_setup(char *str) if (!strcmp(str, "disable")) no_load = 1; - if (!strcmp(str, "no_hwp")) + if (!strcmp(str, "no_hwp")) { + pr_info("intel_pstate: HWP disabled\n"); no_hwp = 1; + } if (!strcmp(str, "force")) force_load = 1; if (!strcmp(str, "hwp_only")) |