[PATCH v5 2/5] drm/xe/hwmon: Move card reactive critical power under channel card

Nilawar, Badal badal.nilawar at intel.com
Fri May 9 10:11:14 UTC 2025


On 09-05-2025 15:21, Karthik Poosa wrote:
> Move power2/curr2_crit to channel 1 i.e power1/curr1_crit as this
> represents the entire card critical power/current.
>
> v2: Update the date of curr1_crit also in hwmon documentation.
>
> Signed-off-by: Karthik Poosa <karthik.poosa at intel.com>
> Fixes: 345dadc4f68b ("drm/xe/hwmon: Add infra to support card power and energy attributes")
Reviewed-by: Badal Nilawar <badal.nilawar at intel.com>
> ---
>   .../ABI/testing/sysfs-driver-intel-xe-hwmon   | 20 +++++++++----------
>   drivers/gpu/drm/xe/xe_hwmon.c                 |  6 +++---
>   2 files changed, 13 insertions(+), 13 deletions(-)
>
> diff --git a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
> index 4ca917ac6382..5a91dcccd3ac 100644
> --- a/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
> +++ b/Documentation/ABI/testing/sysfs-driver-intel-xe-hwmon
> @@ -60,26 +60,26 @@ Description:	RO. Package default power limit (default TDP setting).
>   
>   		Only supported for particular Intel Xe graphics platforms.
>   
> -What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power2_crit
> -Date:		February 2024
> -KernelVersion:	6.8
> +What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/power1_crit
> +Date:		May 2025
> +KernelVersion:	6.15
>   Contact:	intel-xe at lists.freedesktop.org
> -Description:	RW. Package reactive critical (I1) power limit in microwatts.
> +Description:	RW. Card reactive critical (I1) power limit in microwatts.
>   
> -		Package reactive critical (I1) power limit in microwatts is exposed
> +		Card reactive critical (I1) power limit in microwatts is exposed
>   		for client products. The power controller will throttle the
>   		operating frequency if the power averaged over a window exceeds
>   		this limit.
>   
>   		Only supported for particular Intel Xe graphics platforms.
>   
> -What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/curr2_crit
> -Date:		February 2024
> -KernelVersion:	6.8
> +What:		/sys/bus/pci/drivers/xe/.../hwmon/hwmon<i>/curr1_crit
> +Date:		May 2025
> +KernelVersion:	6.15
>   Contact:	intel-xe at lists.freedesktop.org
> -Description:	RW. Package reactive critical (I1) power limit in milliamperes.
> +Description:	RW. Card reactive critical (I1) power limit in milliamperes.
>   
> -		Package reactive critical (I1) power limit in milliamperes is
> +		Card reactive critical (I1) power limit in milliamperes is
>   		exposed for server products. The power controller will throttle
>   		the operating frequency if the power averaged over a window
>   		exceeds this limit.
> diff --git a/drivers/gpu/drm/xe/xe_hwmon.c b/drivers/gpu/drm/xe/xe_hwmon.c
> index b4f99b761a2e..5ba800b35969 100644
> --- a/drivers/gpu/drm/xe/xe_hwmon.c
> +++ b/drivers/gpu/drm/xe/xe_hwmon.c
> @@ -637,8 +637,8 @@ static const struct attribute_group *hwmon_groups[] = {
>   static const struct hwmon_channel_info * const hwmon_info[] = {
>   	HWMON_CHANNEL_INFO(temp, HWMON_T_LABEL, HWMON_T_INPUT | HWMON_T_LABEL,
>   			   HWMON_T_INPUT | HWMON_T_LABEL),
> -	HWMON_CHANNEL_INFO(power, HWMON_P_MAX | HWMON_P_RATED_MAX | HWMON_P_LABEL,
> -			   HWMON_P_MAX | HWMON_P_RATED_MAX | HWMON_P_CRIT | HWMON_P_LABEL),
> +	HWMON_CHANNEL_INFO(power, HWMON_P_MAX | HWMON_P_RATED_MAX | HWMON_P_LABEL | HWMON_P_CRIT,
> +			   HWMON_P_MAX | HWMON_P_RATED_MAX | HWMON_P_LABEL),
>   	HWMON_CHANNEL_INFO(curr, HWMON_C_LABEL, HWMON_C_CRIT | HWMON_C_LABEL),
>   	HWMON_CHANNEL_INFO(in, HWMON_I_INPUT | HWMON_I_LABEL, HWMON_I_INPUT | HWMON_I_LABEL),
>   	HWMON_CHANNEL_INFO(energy, HWMON_E_INPUT | HWMON_E_LABEL, HWMON_E_INPUT | HWMON_E_LABEL),
> @@ -778,7 +778,7 @@ xe_hwmon_power_is_visible(struct xe_hwmon *hwmon, u32 attr, int channel)
>   					       channel)) ? 0444 : 0;
>   	case hwmon_power_crit:
>   	case hwmon_power_label:
> -		if (channel == CHANNEL_PKG) {
> +		if (channel == CHANNEL_CARD) {
>   			xe_hwmon_pcode_read_i1(hwmon, &uval);
>   			return (uval & POWER_SETUP_I1_WATTS) ? (attr == hwmon_power_label) ?
>   				0444 : 0644 : 0;


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