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-rw-r--r--drivers/powercap/intel_rapl.c66
1 files changed, 21 insertions, 45 deletions
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index a50e644ae07a..3413692c4dde 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -155,6 +155,7 @@ struct rapl_power_limit {
static const char pl1_name[] = "long_term";
static const char pl2_name[] = "short_term";
+struct rapl_package;
struct rapl_domain {
const char *name;
enum rapl_domain_type id;
@@ -165,7 +166,7 @@ struct rapl_domain {
u64 attr_map; /* track capabilities */
unsigned int state;
unsigned int domain_energy_unit;
- int package_id;
+ struct rapl_package *rp;
};
#define power_zone_to_rapl_domain(_zone) \
container_of(_zone, struct rapl_domain, power_zone)
@@ -237,10 +238,10 @@ static int rapl_read_data_raw(struct rapl_domain *rd,
static int rapl_write_data_raw(struct rapl_domain *rd,
enum rapl_primitives prim,
unsigned long long value);
-static u64 rapl_unit_xlate(struct rapl_domain *rd, int package,
+static u64 rapl_unit_xlate(struct rapl_domain *rd,
enum unit_type type, u64 value,
int to_raw);
-static void package_power_limit_irq_save(int package_id);
+static void package_power_limit_irq_save(struct rapl_package *rp);
static LIST_HEAD(rapl_packages); /* guarded by CPU hotplug lock */
@@ -318,25 +319,19 @@ static int get_max_energy_counter(struct powercap_zone *pcd_dev, u64 *energy)
{
struct rapl_domain *rd = power_zone_to_rapl_domain(pcd_dev);
- *energy = rapl_unit_xlate(rd, 0, ENERGY_UNIT, ENERGY_STATUS_MASK, 0);
+ *energy = rapl_unit_xlate(rd, ENERGY_UNIT, ENERGY_STATUS_MASK, 0);
return 0;
}
static int release_zone(struct powercap_zone *power_zone)
{
struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone);
- struct rapl_package *rp;
+ struct rapl_package *rp = rd->rp;
/* package zone is the last zone of a package, we can free
* memory here since all children has been unregistered.
*/
if (rd->id == RAPL_DOMAIN_PACKAGE) {
- rp = find_package_by_id(rd->package_id);
- if (!rp) {
- dev_warn(&power_zone->dev, "no package id %s\n",
- rd->name);
- return -ENODEV;
- }
kfree(rd);
rp->domains = NULL;
}
@@ -438,11 +433,7 @@ static int set_power_limit(struct powercap_zone *power_zone, int id,
get_online_cpus();
rd = power_zone_to_rapl_domain(power_zone);
- rp = find_package_by_id(rd->package_id);
- if (!rp) {
- ret = -ENODEV;
- goto set_exit;
- }
+ rp = rd->rp;
if (rd->state & DOMAIN_STATE_BIOS_LOCKED) {
dev_warn(&power_zone->dev, "%s locked by BIOS, monitoring only\n",
@@ -462,7 +453,7 @@ static int set_power_limit(struct powercap_zone *power_zone, int id,
ret = -EINVAL;
}
if (!ret)
- package_power_limit_irq_save(rd->package_id);
+ package_power_limit_irq_save(rp);
set_exit:
put_online_cpus();
return ret;
@@ -661,24 +652,19 @@ static void rapl_init_domains(struct rapl_package *rp)
break;
}
if (mask) {
- rd->package_id = rp->id;
+ rd->rp = rp;
rd++;
}
}
}
-static u64 rapl_unit_xlate(struct rapl_domain *rd, int package,
- enum unit_type type, u64 value,
- int to_raw)
+static u64 rapl_unit_xlate(struct rapl_domain *rd, enum unit_type type,
+ u64 value, int to_raw)
{
u64 units = 1;
- struct rapl_package *rp;
+ struct rapl_package *rp = rd->rp;
u64 scale = 1;
- rp = find_package_by_id(package);
- if (!rp)
- return value;
-
switch (type) {
case POWER_UNIT:
units = rp->power_unit;
@@ -776,7 +762,7 @@ static int rapl_read_data_raw(struct rapl_domain *rd,
if (!msr)
return -EINVAL;
/* use physical package id to look up active cpus */
- cpu = find_active_cpu_on_package(rd->package_id);
+ cpu = find_active_cpu_on_package(rd->rp->id);
if (cpu < 0)
return cpu;
@@ -799,7 +785,7 @@ static int rapl_read_data_raw(struct rapl_domain *rd,
final = value & rp->mask;
final = final >> rp->shift;
if (xlate)
- *data = rapl_unit_xlate(rd, rd->package_id, rp->unit, final, 0);
+ *data = rapl_unit_xlate(rd, rp->unit, final, 0);
else
*data = final;
@@ -843,11 +829,11 @@ static int rapl_write_data_raw(struct rapl_domain *rd,
struct msrl_action ma;
int ret;
- cpu = find_active_cpu_on_package(rd->package_id);
+ cpu = find_active_cpu_on_package(rd->rp->id);
if (cpu < 0)
return cpu;
- bits = rapl_unit_xlate(rd, rd->package_id, rp->unit, value, 1);
+ bits = rapl_unit_xlate(rd, rp->unit, value, 1);
bits |= bits << rp->shift;
memset(&ma, 0, sizeof(ma));
@@ -952,19 +938,14 @@ static void power_limit_irq_save_cpu(void *info)
* to do by adding an atomic notifier.
*/
-static void package_power_limit_irq_save(int package_id)
+static void package_power_limit_irq_save(struct rapl_package *rp)
{
int cpu;
- struct rapl_package *rp;
-
- rp = find_package_by_id(package_id);
- if (!rp)
- return;
if (!boot_cpu_has(X86_FEATURE_PTS) || !boot_cpu_has(X86_FEATURE_PLN))
return;
- cpu = find_active_cpu_on_package(package_id);
+ cpu = find_active_cpu_on_package(rp->id);
if (cpu < 0)
return;
if (!boot_cpu_has(X86_FEATURE_PTS) || !boot_cpu_has(X86_FEATURE_PLN))
@@ -989,19 +970,14 @@ static void power_limit_irq_restore_cpu(void *info)
}
/* restore per package power limit interrupt enable state */
-static void package_power_limit_irq_restore(int package_id)
+static void package_power_limit_irq_restore(struct rapl_package *rp)
{
int cpu;
- struct rapl_package *rp;
-
- rp = find_package_by_id(package_id);
- if (!rp)
- return;
if (!boot_cpu_has(X86_FEATURE_PTS) || !boot_cpu_has(X86_FEATURE_PLN))
return;
- cpu = find_active_cpu_on_package(package_id);
+ cpu = find_active_cpu_on_package(rp->id);
if (cpu < 0)
return;
@@ -1192,7 +1168,7 @@ static int rapl_unregister_powercap(void)
* hotplug lock held
*/
list_for_each_entry(rp, &rapl_packages, plist) {
- package_power_limit_irq_restore(rp->id);
+ package_power_limit_irq_restore(rp);
for (rd = rp->domains; rd < rp->domains + rp->nr_domains;
rd++) {
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 18:28:02 +0300