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platform/x86/intel-uncore-freq: Rename instance_id

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The "instance" word has a specific meaning in TPMI. It is a physical
index related to compute dies and IO dies present on a single TPMI
partition (which is also a single TPMI device). It's used for mapping
MMIO blocks for direct TPMI register access.

The currently used "instance_id" uncore_data struct field is a
sequentially generated value that's used for appending to uncore
directories inside the /sys/devices/system/cpu/intel_uncore_frequency
directory. It has no relation to the physical TPMI elements.

Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/4d983157199cf0e163597df254e2dc629878b818.1775665057.git.m.wieczorretman@pm.me
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Maciej Wieczor-Retman 2026-04-08 16:27:47 +00:00 committed by Ilpo Järvinen
parent 74ab7c4d73
commit d8e484a452
No known key found for this signature in database
GPG Key ID: 59AC4F6153E5CE31
2 changed files with 5 additions and 5 deletions
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6
drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.c
View File

@ -268,7 +268,7 @@ int uncore_freq_add_entry(struct uncore_data *data, int cpu)
if (ret < 0)
goto uncore_unlock;
data->instance_id = ret;
data->seqnum_id = ret;
scnprintf(data->name, sizeof(data->name), "uncore%02d", ret);
} else {
scnprintf(data->name, sizeof(data->name), "package_%02d_die_%02d",
@ -281,7 +281,7 @@ int uncore_freq_add_entry(struct uncore_data *data, int cpu)
ret = create_attr_group(data, data->name);
if (ret) {
if (data->domain_id != UNCORE_DOMAIN_ID_INVALID)
ida_free(&intel_uncore_ida, data->instance_id);
ida_free(&intel_uncore_ida, data->seqnum_id);
} else {
data->control_cpu = cpu;
data->valid = true;
@ -301,7 +301,7 @@ void uncore_freq_remove_die_entry(struct uncore_data *data)
data->control_cpu = -1;
data->valid = false;
if (data->domain_id != UNCORE_DOMAIN_ID_INVALID)
ida_free(&intel_uncore_ida, data->instance_id);
ida_free(&intel_uncore_ida, data->seqnum_id);
mutex_unlock(&uncore_lock);
}

4
drivers/platform/x86/intel/uncore-frequency/uncore-frequency-common.h
View File

@ -35,7 +35,7 @@
* @die_id: Die id for this instance
* @domain_id: Power domain id for this instance
* @cluster_id: cluster id in a domain
* @instance_id: Unique instance id to append to directory name
* @seqnum_id: Unique sequential id to append to directory name
* @name: Sysfs entry name for this instance
* @agent_type_mask: Bit mask of all hardware agents for this domain
* @uncore_attr_group: Attribute group storage
@ -71,7 +71,7 @@ struct uncore_data {
int die_id;
int domain_id;
int cluster_id;
int instance_id;
int seqnum_id;
char name[32];
u16 agent_type_mask;