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| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2016-06-09 15:34:41 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-06-13 23:49:39 +0200 |
| commit | 41bad47f76481d8f55a555274062707e41e57e0e (patch) | |
| tree | 5a9dcf443cf81111b8848a185f88c95f1cefeb27 /drivers/cpufreq | |
| parent | ae892d150fe6da09ce00cf469ea6f326a9435ee2 (diff) | |
| download | linux-41bad47f76481d8f55a555274062707e41e57e0e.tar.bz2 | |
cpufreq: intel_pstate: Broxton support
Add Broxton CPU model number.
Broxton requires core_params to get performance limits via MSRs, but
it is an Atom platform, which requires more power optimized algorithm.
So the P state selection will use similar algorithm as other Atom
platforms.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index e1b7a5e288f9..8a0e40591f1f 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -1110,6 +1110,26 @@ static struct cpu_defaults knl_params = { }, }; +static struct cpu_defaults bxt_params = { + .pid_policy = { + .sample_rate_ms = 10, + .deadband = 0, + .setpoint = 60, + .p_gain_pct = 14, + .d_gain_pct = 0, + .i_gain_pct = 4, + }, + .funcs = { + .get_max = core_get_max_pstate, + .get_max_physical = core_get_max_pstate_physical, + .get_min = core_get_min_pstate, + .get_turbo = core_get_turbo_pstate, + .get_scaling = core_get_scaling, + .get_val = core_get_val, + .get_target_pstate = get_target_pstate_use_cpu_load, + }, +}; + static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) { int max_perf = cpu->pstate.turbo_pstate; @@ -1370,6 +1390,7 @@ static const struct x86_cpu_id intel_pstate_cpu_ids[] = { ICPU(INTEL_FAM6_SKYLAKE_DESKTOP, core_params), ICPU(INTEL_FAM6_BROADWELL_XEON_D, core_params), ICPU(INTEL_FAM6_XEON_PHI_KNL, knl_params), + ICPU(INTEL_FAM6_ATOM_GOLDMONT, bxt_params), {} }; MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids); |