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path: root/drivers/cpufreq/intel_pstate.c
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Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
-rw-r--r--drivers/cpufreq/intel_pstate.c46
1 files changed, 37 insertions, 9 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 79619227ea51..dbbf299f4219 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -25,6 +25,7 @@
#include <linux/acpi.h>
#include <linux/vmalloc.h>
#include <linux/pm_qos.h>
+#include <linux/bitfield.h>
#include <trace/events/power.h>
#include <asm/cpu.h>
@@ -201,8 +202,6 @@ struct global_params {
* @prev_aperf: Last APERF value read from APERF MSR
* @prev_mperf: Last MPERF value read from MPERF MSR
* @prev_tsc: Last timestamp counter (TSC) value
- * @prev_cummulative_iowait: IO Wait time difference from last and
- * current sample
* @sample: Storage for storing last Sample data
* @min_perf_ratio: Minimum capacity in terms of PERF or HWP ratios
* @max_perf_ratio: Maximum capacity in terms of PERF or HWP ratios
@@ -241,7 +240,6 @@ struct cpudata {
u64 prev_aperf;
u64 prev_mperf;
u64 prev_tsc;
- u64 prev_cummulative_iowait;
struct sample sample;
int32_t min_perf_ratio;
int32_t max_perf_ratio;
@@ -3407,14 +3405,31 @@ static bool intel_pstate_hwp_is_enabled(void)
return !!(value & 0x1);
}
-static const struct x86_cpu_id intel_epp_balance_perf[] = {
+#define POWERSAVE_MASK GENMASK(7, 0)
+#define BALANCE_POWER_MASK GENMASK(15, 8)
+#define BALANCE_PERFORMANCE_MASK GENMASK(23, 16)
+#define PERFORMANCE_MASK GENMASK(31, 24)
+
+#define HWP_SET_EPP_VALUES(powersave, balance_power, balance_perf, performance) \
+ (FIELD_PREP_CONST(POWERSAVE_MASK, powersave) |\
+ FIELD_PREP_CONST(BALANCE_POWER_MASK, balance_power) |\
+ FIELD_PREP_CONST(BALANCE_PERFORMANCE_MASK, balance_perf) |\
+ FIELD_PREP_CONST(PERFORMANCE_MASK, performance))
+
+#define HWP_SET_DEF_BALANCE_PERF_EPP(balance_perf) \
+ (HWP_SET_EPP_VALUES(HWP_EPP_POWERSAVE, HWP_EPP_BALANCE_POWERSAVE,\
+ balance_perf, HWP_EPP_PERFORMANCE))
+
+static const struct x86_cpu_id intel_epp_default[] = {
/*
* Set EPP value as 102, this is the max suggested EPP
* which can result in one core turbo frequency for
* AlderLake Mobile CPUs.
*/
- X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, 102),
- X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, 32),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, HWP_SET_DEF_BALANCE_PERF_EPP(102)),
+ X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, HWP_SET_DEF_BALANCE_PERF_EPP(32)),
+ X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE_L, HWP_SET_EPP_VALUES(HWP_EPP_POWERSAVE,
+ HWP_EPP_BALANCE_POWERSAVE, 115, 16)),
{}
};
@@ -3512,11 +3527,24 @@ hwp_cpu_matched:
intel_pstate_sysfs_expose_params();
if (hwp_active) {
- const struct x86_cpu_id *id = x86_match_cpu(intel_epp_balance_perf);
+ const struct x86_cpu_id *id = x86_match_cpu(intel_epp_default);
const struct x86_cpu_id *hybrid_id = x86_match_cpu(intel_hybrid_scaling_factor);
- if (id)
- epp_values[EPP_INDEX_BALANCE_PERFORMANCE] = id->driver_data;
+ if (id) {
+ epp_values[EPP_INDEX_POWERSAVE] =
+ FIELD_GET(POWERSAVE_MASK, id->driver_data);
+ epp_values[EPP_INDEX_BALANCE_POWERSAVE] =
+ FIELD_GET(BALANCE_POWER_MASK, id->driver_data);
+ epp_values[EPP_INDEX_BALANCE_PERFORMANCE] =
+ FIELD_GET(BALANCE_PERFORMANCE_MASK, id->driver_data);
+ epp_values[EPP_INDEX_PERFORMANCE] =
+ FIELD_GET(PERFORMANCE_MASK, id->driver_data);
+ pr_debug("Updated EPPs powersave:%x balanced power:%x balanced perf:%x performance:%x\n",
+ epp_values[EPP_INDEX_POWERSAVE],
+ epp_values[EPP_INDEX_BALANCE_POWERSAVE],
+ epp_values[EPP_INDEX_BALANCE_PERFORMANCE],
+ epp_values[EPP_INDEX_PERFORMANCE]);
+ }
if (hybrid_id) {
hybrid_scaling_factor = hybrid_id->driver_data;