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

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Message-ID: <20260105172956.3732123-1-lizhi.hou@amd.com>
Date: Mon, 5 Jan 2026 09:29:54 -0800
From: Lizhi Hou <lizhi.hou@....com>
To: <ogabbay@...nel.org>, <quic_jhugo@...cinc.com>,
	<maciej.falkowski@...ux.intel.com>, <ilpo.jarvinen@...ux.intel.com>,
	<hansg@...nel.org>
CC: Lizhi Hou <lizhi.hou@....com>, <dri-devel@...ts.freedesktop.org>,
	<linux-kernel@...r.kernel.org>, <max.zhen@....com>, <sonal.santan@....com>,
	<mario.limonciello@....com>, <platform-driver-x86@...r.kernel.org>,
	<Shyam-sundar.S-k@....com>, <VinitKumar.Shukla@....com>
Subject: [PATCH V3 0/2] Get real time power input via AMD PMF

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@linux.intel.com/

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@amd.com/
    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(-)

-- 
2.34.1