Go Back   nV News Forums > Linux Support Forums > NVIDIA Linux

Newegg Daily Deals

Reply
 
Thread Tools
Old 06-20-11, 10:24 AM   #1
doncherian
Registered User
 
Join Date: Jun 2011
Posts: 1
Question Runtime power management for Nvidia GPU

I am trying to implement a feature with which i can issue suspend/resume to the GPU explicitly on Demand.The idea is to suspend the GPU while keeping other part of system alive and start/resume it only when it is needed to minimize the power consumption.

We have a GeForce GT 430 GPU connected to PCIe bus on Intel® Atom™ Processor D510 machine running with kernel 2.6.31-15 and nvidia driver - NVIDIA-Linux-x86-270.41.19.

After going through the presentation by Rafael J. Wysocki [http://linuxplumbersconf.org/2010/oc...untime_PM.pdf] , I understood that the device driver should provide callbacks for resume and suspend if it supports the run-time power management.
I checked the kernel interaction layer of nvidia driver and could see that those two callbacks are supported.

<NVIDIA-Linux-x86-270.41.19\kernel\nv.c>
static struct pci_driver nv_pci_driver = {
.name = "nvidia",
.id_table = nv_pci_table,
.probe = nv_kern_probe,
#if defined(NV_PM_SUPPORT_DEVICE_DRIVER_MODEL)
.suspend = nv_kern_suspend,
.resume = nv_kern_resume,
#endif
};


First of all i would like to know if it is possible to implement such a feature.If so please provide me some pointers on how to do this..

Thanks in advance,
Don
doncherian is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 02:16 AM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2014, nV News.