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Diffstat (limited to 'drivers/powercap/intel_rapl.c')
-rw-r--r--drivers/powercap/intel_rapl.c75
1 files changed, 41 insertions, 34 deletions
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
index f888117b0efc..8692f6b79f93 100644
--- a/drivers/powercap/intel_rapl.c
+++ b/drivers/powercap/intel_rapl.c
@@ -166,12 +166,15 @@ struct rapl_domain {
#define power_zone_to_rapl_domain(_zone) \
container_of(_zone, struct rapl_domain, power_zone)
+/* maximum rapl package domain name: package-%d-die-%d */
+#define PACKAGE_DOMAIN_NAME_LENGTH 30
-/* Each physical package contains multiple domains, these are the common
+
+/* Each rapl package contains multiple domains, these are the common
* data across RAPL domains within a package.
*/
struct rapl_package {
- unsigned int id; /* physical package/socket id */
+ unsigned int id; /* logical die id, equals physical 1-die systems */
unsigned int nr_domains;
unsigned long domain_map; /* bit map of active domains */
unsigned int power_unit;
@@ -186,6 +189,7 @@ struct rapl_package {
int lead_cpu; /* one active cpu per package for access */
/* Track active cpus */
struct cpumask cpumask;
+ char name[PACKAGE_DOMAIN_NAME_LENGTH];
};
struct rapl_defaults {
@@ -252,8 +256,9 @@ static struct powercap_control_type *control_type; /* PowerCap Controller */
static struct rapl_domain *platform_rapl_domain; /* Platform (PSys) domain */
/* caller to ensure CPU hotplug lock is held */
-static struct rapl_package *find_package_by_id(int id)
+static struct rapl_package *rapl_find_package_domain(int cpu)
{
+ int id = topology_logical_die_id(cpu);
struct rapl_package *rp;
list_for_each_entry(rp, &rapl_packages, plist) {
@@ -913,8 +918,8 @@ static int rapl_check_unit_core(struct rapl_package *rp, int cpu)
value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET;
rp->time_unit = 1000000 / (1 << value);
- pr_debug("Core CPU package %d energy=%dpJ, time=%dus, power=%duW\n",
- rp->id, rp->energy_unit, rp->time_unit, rp->power_unit);
+ pr_debug("Core CPU %s energy=%dpJ, time=%dus, power=%duW\n",
+ rp->name, rp->energy_unit, rp->time_unit, rp->power_unit);
return 0;
}
@@ -938,8 +943,8 @@ static int rapl_check_unit_atom(struct rapl_package *rp, int cpu)
value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET;
rp->time_unit = 1000000 / (1 << value);
- pr_debug("Atom package %d energy=%dpJ, time=%dus, power=%duW\n",
- rp->id, rp->energy_unit, rp->time_unit, rp->power_unit);
+ pr_debug("Atom %s energy=%dpJ, time=%dus, power=%duW\n",
+ rp->name, rp->energy_unit, rp->time_unit, rp->power_unit);
return 0;
}
@@ -1168,7 +1173,7 @@ static void rapl_update_domain_data(struct rapl_package *rp)
u64 val;
for (dmn = 0; dmn < rp->nr_domains; dmn++) {
- pr_debug("update package %d domain %s data\n", rp->id,
+ pr_debug("update %s domain %s data\n", rp->name,
rp->domains[dmn].name);
/* exclude non-raw primitives */
for (prim = 0; prim < NR_RAW_PRIMITIVES; prim++) {
@@ -1193,7 +1198,6 @@ static void rapl_unregister_powercap(void)
static int rapl_package_register_powercap(struct rapl_package *rp)
{
struct rapl_domain *rd;
- char dev_name[17]; /* max domain name = 7 + 1 + 8 for int + 1 for null*/
struct powercap_zone *power_zone = NULL;
int nr_pl, ret;
@@ -1204,20 +1208,16 @@ static int rapl_package_register_powercap(struct rapl_package *rp)
for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
if (rd->id == RAPL_DOMAIN_PACKAGE) {
nr_pl = find_nr_power_limit(rd);
- pr_debug("register socket %d package domain %s\n",
- rp->id, rd->name);
- memset(dev_name, 0, sizeof(dev_name));
- snprintf(dev_name, sizeof(dev_name), "%s-%d",
- rd->name, rp->id);
+ pr_debug("register package domain %s\n", rp->name);
power_zone = powercap_register_zone(&rd->power_zone,
control_type,
- dev_name, NULL,
+ rp->name, NULL,
&zone_ops[rd->id],
nr_pl,
&constraint_ops);
if (IS_ERR(power_zone)) {
- pr_debug("failed to register package, %d\n",
- rp->id);
+ pr_debug("failed to register power zone %s\n",
+ rp->name);
return PTR_ERR(power_zone);
}
/* track parent zone in per package/socket data */
@@ -1243,8 +1243,8 @@ static int rapl_package_register_powercap(struct rapl_package *rp)
&constraint_ops);
if (IS_ERR(power_zone)) {
- pr_debug("failed to register power_zone, %d:%s:%s\n",
- rp->id, rd->name, dev_name);
+ pr_debug("failed to register power_zone, %s:%s\n",
+ rp->name, rd->name);
ret = PTR_ERR(power_zone);
goto err_cleanup;
}
@@ -1257,7 +1257,7 @@ err_cleanup:
* failed after the first domain setup.
*/
while (--rd >= rp->domains) {
- pr_debug("unregister package %d domain %s\n", rp->id, rd->name);
+ pr_debug("unregister %s domain %s\n", rp->name, rd->name);
powercap_unregister_zone(control_type, &rd->power_zone);
}
@@ -1288,7 +1288,7 @@ static int __init rapl_register_psys(void)
rd->rpl[0].name = pl1_name;
rd->rpl[1].prim_id = PL2_ENABLE;
rd->rpl[1].name = pl2_name;
- rd->rp = find_package_by_id(0);
+ rd->rp = rapl_find_package_domain(0);
power_zone = powercap_register_zone(&rd->power_zone, control_type,
"psys", NULL,
@@ -1367,8 +1367,8 @@ static void rapl_detect_powerlimit(struct rapl_domain *rd)
/* check if the domain is locked by BIOS, ignore if MSR doesn't exist */
if (!rapl_read_data_raw(rd, FW_LOCK, false, &val64)) {
if (val64) {
- pr_info("RAPL package %d domain %s locked by BIOS\n",
- rd->rp->id, rd->name);
+ pr_info("RAPL %s domain %s locked by BIOS\n",
+ rd->rp->name, rd->name);
rd->state |= DOMAIN_STATE_BIOS_LOCKED;
}
}
@@ -1397,10 +1397,10 @@ static int rapl_detect_domains(struct rapl_package *rp, int cpu)
}
rp->nr_domains = bitmap_weight(&rp->domain_map, RAPL_DOMAIN_MAX);
if (!rp->nr_domains) {
- pr_debug("no valid rapl domains found in package %d\n", rp->id);
+ pr_debug("no valid rapl domains found in %s\n", rp->name);
return -ENODEV;
}
- pr_debug("found %d domains on package %d\n", rp->nr_domains, rp->id);
+ pr_debug("found %d domains on %s\n", rp->nr_domains, rp->name);
rp->domains = kcalloc(rp->nr_domains + 1, sizeof(struct rapl_domain),
GFP_KERNEL);
@@ -1433,8 +1433,8 @@ static void rapl_remove_package(struct rapl_package *rp)
rd_package = rd;
continue;
}
- pr_debug("remove package, undo power limit on %d: %s\n",
- rp->id, rd->name);
+ pr_debug("remove package, undo power limit on %s: %s\n",
+ rp->name, rd->name);
powercap_unregister_zone(control_type, &rd->power_zone);
}
/* do parent zone last */
@@ -1444,9 +1444,11 @@ static void rapl_remove_package(struct rapl_package *rp)
}
/* called from CPU hotplug notifier, hotplug lock held */
-static struct rapl_package *rapl_add_package(int cpu, int pkgid)
+static struct rapl_package *rapl_add_package(int cpu)
{
+ int id = topology_logical_die_id(cpu);
struct rapl_package *rp;
+ struct cpuinfo_x86 *c = &cpu_data(cpu);
int ret;
rp = kzalloc(sizeof(struct rapl_package), GFP_KERNEL);
@@ -1454,9 +1456,16 @@ static struct rapl_package *rapl_add_package(int cpu, int pkgid)
return ERR_PTR(-ENOMEM);
/* add the new package to the list */
- rp->id = pkgid;
+ rp->id = id;
rp->lead_cpu = cpu;
+ if (topology_max_die_per_package() > 1)
+ snprintf(rp->name, PACKAGE_DOMAIN_NAME_LENGTH,
+ "package-%d-die-%d", c->phys_proc_id, c->cpu_die_id);
+ else
+ snprintf(rp->name, PACKAGE_DOMAIN_NAME_LENGTH, "package-%d",
+ c->phys_proc_id);
+
/* check if the package contains valid domains */
if (rapl_detect_domains(rp, cpu) ||
rapl_defaults->check_unit(rp, cpu)) {
@@ -1485,12 +1494,11 @@ err_free_package:
*/
static int rapl_cpu_online(unsigned int cpu)
{
- int pkgid = topology_physical_package_id(cpu);
struct rapl_package *rp;
- rp = find_package_by_id(pkgid);
+ rp = rapl_find_package_domain(cpu);
if (!rp) {
- rp = rapl_add_package(cpu, pkgid);
+ rp = rapl_add_package(cpu);
if (IS_ERR(rp))
return PTR_ERR(rp);
}
@@ -1500,11 +1508,10 @@ static int rapl_cpu_online(unsigned int cpu)
static int rapl_cpu_down_prep(unsigned int cpu)
{
- int pkgid = topology_physical_package_id(cpu);
struct rapl_package *rp;
int lead_cpu;
- rp = find_package_by_id(pkgid);
+ rp = rapl_find_package_domain(cpu);
if (!rp)
return 0;
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-06-02 13:44:27 +0200