runtime PM and special power switches

2012-09-18 Thread Rafael J. Wysocki
Sorry for the delayed response. On Wednesday, September 12, 2012, Dave Airlie wrote: > On Wed, Sep 12, 2012 at 3:13 PM, Dave Airlie wrote: > > On Wed, Sep 12, 2012 at 8:58 AM, Rafael J. Wysocki wrote: > >> On Wednesday, September 12, 2012, Dave Airlie wrote: > >>> On Wed, Sep 12, 2012 at 7:32 AM

Re: runtime PM and special power switches

2012-09-18 Thread Rafael J. Wysocki
Sorry for the delayed response. On Wednesday, September 12, 2012, Dave Airlie wrote: > On Wed, Sep 12, 2012 at 3:13 PM, Dave Airlie wrote: > > On Wed, Sep 12, 2012 at 8:58 AM, Rafael J. Wysocki wrote: > >> On Wednesday, September 12, 2012, Dave Airlie wrote: > >>> On Wed, Sep 12, 2012 at 7:32 AM

runtime PM and special power switches

2012-09-12 Thread Dave Airlie
On Wed, Sep 12, 2012 at 3:13 PM, Dave Airlie wrote: > On Wed, Sep 12, 2012 at 8:58 AM, Rafael J. Wysocki wrote: >> On Wednesday, September 12, 2012, Dave Airlie wrote: >>> On Wed, Sep 12, 2012 at 7:32 AM, Alan Stern >>> wrote: >>> > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: >>> > >>> >> Hi,

runtime PM and special power switches

2012-09-12 Thread Dave Airlie
On Wed, Sep 12, 2012 at 8:58 AM, Rafael J. Wysocki wrote: > On Wednesday, September 12, 2012, Dave Airlie wrote: >> On Wed, Sep 12, 2012 at 7:32 AM, Alan Stern >> wrote: >> > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: >> > >> >> Hi, >> >> >> >> On Tuesday, September 11, 2012, Dave Airlie wrot

runtime PM and special power switches

2012-09-12 Thread Dave Airlie
On Wed, Sep 12, 2012 at 7:32 AM, Alan Stern wrote: > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: > >> Hi, >> >> On Tuesday, September 11, 2012, Dave Airlie wrote: >> > Hi Rafael, >> > >> > I've been investigating runtime PM support for some use-cases on GPUs. >> > >> > In some laptops we have a

runtime PM and special power switches

2012-09-12 Thread Rafael J. Wysocki
On Wednesday, September 12, 2012, Dave Airlie wrote: > On Wed, Sep 12, 2012 at 7:32 AM, Alan Stern > wrote: > > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: > > > >> Hi, > >> > >> On Tuesday, September 11, 2012, Dave Airlie wrote: > >> > Hi Rafael, > >> > > >> > I've been investigating runtime P

runtime PM and special power switches

2012-09-12 Thread Rafael J. Wysocki
On Tuesday, September 11, 2012, Alan Stern wrote: > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: > > > Hi, > > > > On Tuesday, September 11, 2012, Dave Airlie wrote: > > > Hi Rafael, > > > > > > I've been investigating runtime PM support for some use-cases on GPUs. > > > > > > In some laptops

Re: runtime PM and special power switches

2012-09-11 Thread Dave Airlie
On Wed, Sep 12, 2012 at 3:13 PM, Dave Airlie wrote: > On Wed, Sep 12, 2012 at 8:58 AM, Rafael J. Wysocki wrote: >> On Wednesday, September 12, 2012, Dave Airlie wrote: >>> On Wed, Sep 12, 2012 at 7:32 AM, Alan Stern >>> wrote: >>> > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: >>> > >>> >> Hi,

runtime PM and special power switches

2012-09-11 Thread Rafael J. Wysocki
Hi, On Tuesday, September 11, 2012, Dave Airlie wrote: > Hi Rafael, > > I've been investigating runtime PM support for some use-cases on GPUs. > > In some laptops we have a secondary GPU (optimus) that can be powered > up for certain 3D tasks and then turned off when finished with. Now I > did a

Re: runtime PM and special power switches

2012-09-11 Thread Dave Airlie
On Wed, Sep 12, 2012 at 8:58 AM, Rafael J. Wysocki wrote: > On Wednesday, September 12, 2012, Dave Airlie wrote: >> On Wed, Sep 12, 2012 at 7:32 AM, Alan Stern >> wrote: >> > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: >> > >> >> Hi, >> >> >> >> On Tuesday, September 11, 2012, Dave Airlie wrot

runtime PM and special power switches

2012-09-11 Thread Alan Stern
On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: > Hi, > > On Tuesday, September 11, 2012, Dave Airlie wrote: > > Hi Rafael, > > > > I've been investigating runtime PM support for some use-cases on GPUs. > > > > In some laptops we have a secondary GPU (optimus) that can be powered > > up for certa

Re: runtime PM and special power switches

2012-09-11 Thread Rafael J. Wysocki
On Wednesday, September 12, 2012, Dave Airlie wrote: > On Wed, Sep 12, 2012 at 7:32 AM, Alan Stern wrote: > > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: > > > >> Hi, > >> > >> On Tuesday, September 11, 2012, Dave Airlie wrote: > >> > Hi Rafael, > >> > > >> > I've been investigating runtime PM s

Re: runtime PM and special power switches

2012-09-11 Thread Dave Airlie
On Wed, Sep 12, 2012 at 7:32 AM, Alan Stern wrote: > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: > >> Hi, >> >> On Tuesday, September 11, 2012, Dave Airlie wrote: >> > Hi Rafael, >> > >> > I've been investigating runtime PM support for some use-cases on GPUs. >> > >> > In some laptops we have a

Re: runtime PM and special power switches

2012-09-11 Thread Rafael J. Wysocki
On Tuesday, September 11, 2012, Alan Stern wrote: > On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: > > > Hi, > > > > On Tuesday, September 11, 2012, Dave Airlie wrote: > > > Hi Rafael, > > > > > > I've been investigating runtime PM support for some use-cases on GPUs. > > > > > > In some laptops

runtime PM and special power switches

2012-09-11 Thread Dave Airlie
Hi Rafael, I've been investigating runtime PM support for some use-cases on GPUs. In some laptops we have a secondary GPU (optimus) that can be powered up for certain 3D tasks and then turned off when finished with. Now I did an initial pass on supporting it without using the kernel runtime PM st

Re: runtime PM and special power switches

2012-09-11 Thread Alan Stern
On Tue, 11 Sep 2012, Rafael J. Wysocki wrote: > Hi, > > On Tuesday, September 11, 2012, Dave Airlie wrote: > > Hi Rafael, > > > > I've been investigating runtime PM support for some use-cases on GPUs. > > > > In some laptops we have a secondary GPU (optimus) that can be powered > > up for certa

Re: runtime PM and special power switches

2012-09-11 Thread Rafael J. Wysocki
Hi, On Tuesday, September 11, 2012, Dave Airlie wrote: > Hi Rafael, > > I've been investigating runtime PM support for some use-cases on GPUs. > > In some laptops we have a secondary GPU (optimus) that can be powered > up for certain 3D tasks and then turned off when finished with. Now I > did a

runtime PM and special power switches

2012-09-11 Thread Dave Airlie
Hi Rafael, I've been investigating runtime PM support for some use-cases on GPUs. In some laptops we have a secondary GPU (optimus) that can be powered up for certain 3D tasks and then turned off when finished with. Now I did an initial pass on supporting it without using the kernel runtime PM st