github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-31 18:43:33 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/xe/hwmon: Expose powerX_cap_interval

Browse Source 
Expose powerX_cap_interval to manage burst power limit time window.

Signed-off-by: Karthik Poosa <karthik.poosa@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Link: https://lore.kernel.org/r/20250529163458.2354509-5-karthik.poosa@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Karthik Poosa 2025-05-29 22:04:56 +05:30 committed by Rodrigo Vivi
parent c713b9a23c
commit 719d8a5959
No known key found for this signature in database
GPG Key ID: FA625F640EEB13CA
2 changed files with 31 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
View File

@ -178,3 +178,21 @@ Description: RW. Package burst (PL2) power limit in microwatts.
compared to PL1.
Only supported for particular Intel Xe graphics platforms.
What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_cap_interval
Date: May 2025
KernelVersion: 6.15
Contact: intel-xe@lists.freedesktop.org
Description: RW. Card burst power limit interval (Tau in PL2/Tau) in
milliseconds over which sustained power is averaged.
Only supported for particular Intel Xe graphics platforms.
What: /sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_cap_interval
Date: May 2025
KernelVersion: 6.15
Contact: intel-xe@lists.freedesktop.org
Description: RW. Package burst power limit interval (Tau in PL2/Tau) in
milliseconds over which sustained power is averaged.
Only supported for particular Intel Xe graphics platforms.

16
drivers/gpu/drm/xe/xe_hwmon.c
View File

@ -474,7 +474,7 @@ xe_hwmon_power_max_interval_show(struct device *dev, struct device_attribute *at
u32 x, y, x_w = 2; /* 2 bits */
u64 r, tau4, out;
int channel = (to_sensor_dev_attr(attr)->index % 2) ? CHANNEL_PKG : CHANNEL_CARD;
u32 power_attr = PL1_HWMON_ATTR;
u32 power_attr = (to_sensor_dev_attr(attr)->index > 1) ? PL2_HWMON_ATTR : PL1_HWMON_ATTR;
int ret = 0;
@ -529,7 +529,7 @@ xe_hwmon_power_max_interval_store(struct device *dev, struct device_attribute *a
u64 tau4, r, max_win;
unsigned long val;
int channel = (to_sensor_dev_attr(attr)->index % 2) ? CHANNEL_PKG : CHANNEL_CARD;
u32 power_attr = PL1_HWMON_ATTR;
u32 power_attr = (to_sensor_dev_attr(attr)->index > 1) ? PL2_HWMON_ATTR : PL1_HWMON_ATTR;
int ret;
ret = kstrtoul(buf, 0, &val);
@ -607,10 +607,20 @@ static SENSOR_DEVICE_ATTR(power1_max_interval, 0664,
static SENSOR_DEVICE_ATTR(power2_max_interval, 0664,
xe_hwmon_power_max_interval_show,
xe_hwmon_power_max_interval_store, SENSOR_INDEX_PKG_PL1);
/* PSYS PL2 */
static SENSOR_DEVICE_ATTR(power1_cap_interval, 0664,
xe_hwmon_power_max_interval_show,
xe_hwmon_power_max_interval_store, SENSOR_INDEX_PSYS_PL2);
/* PKG PL2 */
static SENSOR_DEVICE_ATTR(power2_cap_interval, 0664,
xe_hwmon_power_max_interval_show,
xe_hwmon_power_max_interval_store, SENSOR_INDEX_PKG_PL2);
static struct attribute *hwmon_attributes[] = {
&sensor_dev_attr_power1_max_interval.dev_attr.attr,
&sensor_dev_attr_power2_max_interval.dev_attr.attr,
&sensor_dev_attr_power1_cap_interval.dev_attr.attr,
&sensor_dev_attr_power2_cap_interval.dev_attr.attr,
NULL
};
@ -621,7 +631,7 @@ static umode_t xe_hwmon_attributes_visible(struct kobject *kobj,
struct xe_hwmon *hwmon = dev_get_drvdata(dev);
int ret = 0;
int channel = (index % 2) ? CHANNEL_PKG : CHANNEL_CARD;
u32 power_attr = PL1_HWMON_ATTR;
u32 power_attr = (index > 1) ? PL2_HWMON_ATTR : PL1_HWMON_ATTR;
u32 uval;
xe_pm_runtime_get(hwmon->xe);