[PATCH V3 0/2] Get real time power input via AMD PMF

From: Lizhi Hou
Date: Mon Jan 05 2026 - 12:38:08 EST


Adding new NPU metrics API to AMD PMF driver is pending because of
lacking real case.
https://lore.kernel.org/all/d344b850-f68d-f9a5-f0dc-55af4b48b714@xxxxxxxxxxxxxxx/

Create xdna driver patch to fetch real time power input via PMF API.
Here is an example output with xrt-smi(1) tool.

# xrt-smi examine -r all | grep Power
Power Mode : Default
Estimated Power : 0.563 Watts

v3:
Save return value of is_npu_metrics_supported() and return it

V2:
Including header file for struct mutex will be added by
https://patchwork.kernel.org/project/platform-driver-x86/patch/20251202042219.245173-1-Shyam-sundar.S-k@xxxxxxx/
Add include for U32_MAX
Replace snprintf by scnprintf
Fix coding style

Lizhi Hou (1):
accel/amdxdna: Add IOCTL to retrieve realtime NPU power estimate

Shyam Sundar S K (1):
platform/x86/amd/pmf: Introduce new interface to export NPU metrics

drivers/accel/amdxdna/aie2_pci.c | 29 ++++++++++
drivers/accel/amdxdna/aie2_pci.h | 20 +++++++
drivers/accel/amdxdna/amdxdna_pci_drv.c | 3 +-
drivers/platform/x86/amd/pmf/core.c | 76 +++++++++++++++++++++++++
drivers/platform/x86/amd/pmf/pmf.h | 2 +
include/linux/amd-pmf-io.h | 21 +++++++
6 files changed, 150 insertions(+), 1 deletion(-)

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2.34.1