[v1] Get real time power input via AMD PMF

[PATCH V1 0/2] Get real time power input via AMD PMF

Posted by Lizhi Hou 2 days, 7 hours ago

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

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        | 18 ++++++
 drivers/accel/amdxdna/amdxdna_pci_drv.c |  3 +-
 drivers/platform/x86/amd/pmf/core.c     | 75 +++++++++++++++++++++++++
 drivers/platform/x86/amd/pmf/pmf.h      |  2 +
 include/linux/amd-pmf-io.h              | 21 +++++++
 6 files changed, 147 insertions(+), 1 deletion(-)

-- 
2.34.1

Re: [PATCH V1 0/2] Get real time power input via AMD PMF

Posted by Mario Limonciello 2 days, 7 hours ago

On 12/11/25 11:58 AM, Lizhi Hou wrote:
> 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
> 
> 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        | 18 ++++++
>   drivers/accel/amdxdna/amdxdna_pci_drv.c |  3 +-
>   drivers/platform/x86/amd/pmf/core.c     | 75 +++++++++++++++++++++++++
>   drivers/platform/x86/amd/pmf/pmf.h      |  2 +
>   include/linux/amd-pmf-io.h              | 21 +++++++
>   6 files changed, 147 insertions(+), 1 deletion(-)
> 

Do you have a preference on how this gets merged ? Should it go through 
drm-next or platform-x86-next?

I suppose whoever is going to have more development layering on top the 
next cycle it would be preferable to put in that tree.

Re: [PATCH V1 0/2] Get real time power input via AMD PMF

Posted by Lizhi Hou 2 days, 6 hours ago

On 12/11/25 10:22, Mario Limonciello wrote:
> On 12/11/25 11:58 AM, Lizhi Hou wrote:
>> 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
>>
>> 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        | 18 ++++++
>>   drivers/accel/amdxdna/amdxdna_pci_drv.c |  3 +-
>>   drivers/platform/x86/amd/pmf/core.c     | 75 +++++++++++++++++++++++++
>>   drivers/platform/x86/amd/pmf/pmf.h      |  2 +
>>   include/linux/amd-pmf-io.h              | 21 +++++++
>>   6 files changed, 147 insertions(+), 1 deletion(-)
>>
>
> Do you have a preference on how this gets merged ? Should it go 
> through drm-next or platform-x86-next?
>
> I suppose whoever is going to have more development layering on top 
> the next cycle it would be preferable to put in that tree.

I do not have preference. :) And this depends on Shyam's previous patch 
which is not in drm-next yet?

Thanks,

Lizhi