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On Wed, Jul 08, 2015 at 10:37:34AM +1000, Ben Skeggs wrote: > On 8 July 2015 at 10:31, Andrew Chew <achew at nvidia.com> wrote: > > On Wed, Jul 08, 2015 at 10:18:36AM +1000, Ben Skeggs wrote: > >> > There's some minimal state that needs to be mapped into GPU address space. > >> > One thing that comes to mind are pushbuffers, which are needed to submit > >>...

On Wed, Jul 08, 2015 at 10:18:36AM +1000, Ben Skeggs wrote: > > There's some minimal state that needs to be mapped into GPU address space. > > One thing that comes to mind are pushbuffers, which are needed to submit > > stuff to any engine. > I guess you can probably use the start of the kernel's address space > carveout for these kind of mappings actually?

Hello, I am currently looking into ways to support fixed virtual address allocations and sparse mappings in nouveau, as a step towards supporting CUDA. CUDA requires that the GPU virtual address for a given buffer match the CPU virtual address. Therefore, when mapping a CUDA buffer, we have to have a way of specifying a particular virtual address to map to (we would ask that the CPU virtual

On Wed, Jul 08, 2015 at 10:51:55AM +1000, Ben Skeggs wrote: > On 8 July 2015 at 10:47, Andrew Chew <achew at nvidia.com> wrote: > > On Wed, Jul 08, 2015 at 10:37:34AM +1000, Ben Skeggs wrote: > >> On 8 July 2015 at 10:31, Andrew Chew <achew at nvidia.com> wrote: > >> > On Wed, Jul 08, 2015 at 10:18:36AM +1000, Ben Skeggs wrote: > >> >> > There's...

On Tue, Jul 07, 2015 at 08:13:28PM -0400, Ilia Mirkin wrote: > On Tue, Jul 7, 2015 at 8:11 PM, C Bergström <cbergstrom at pathscale.com> wrote: > > On Wed, Jul 8, 2015 at 7:08 AM, Ilia Mirkin <imirkin at alum.mit.edu> wrote: > >> On Tue, Jul 7, 2015 at 8:07 PM, C Bergström <cbergstrom at pathscale.com> wrote: > >>> On Wed, Jul 8, 2015 at 6:58 AM, Ben

On Tue, Jul 07, 2015 at 11:29:38AM -0400, Ilia Mirkin wrote: > On Mon, Jul 6, 2015 at 8:42 PM, Andrew Chew <achew at nvidia.com> wrote: > > Hello, > > > > I am currently looking into ways to support fixed virtual address allocations > > and sparse mappings in nouveau, as a step towards supporting CUDA. > > > > CUDA requires that the GPU virtual address for a given buffer...

...gt; Andrew Armenia <andrew@asquaredlabs.com> Andrew Barry <abarry@cray.com> Andrew Bird <ajb@spheresystems.co.uk> Andrew Boie <andrew.p.boie@intel.com> Andrew Bresticker <abrestic@chromium.org> Andrew Brownfield <abrownfi@redhat.com> Andrew Chew <achew@nvidia.com> Andrew Collins <bsderandrew@gmail.com> Andrew Cooks <acooks@gmail.com> Andrew Cooper <andrew.cooper3@citrix.com> Andrew Dahl <adahl@sgi.com> Andrew de los Reyes <adlr@chromium.org> Andrew Duggan <aduggan@synaptics.com> Andrew G. Morga...

...gt; Andrew Armenia <andrew@asquaredlabs.com> Andrew Barry <abarry@cray.com> Andrew Bird <ajb@spheresystems.co.uk> Andrew Boie <andrew.p.boie@intel.com> Andrew Bresticker <abrestic@chromium.org> Andrew Brownfield <abrownfi@redhat.com> Andrew Chew <achew@nvidia.com> Andrew Collins <bsderandrew@gmail.com> Andrew Cooks <acooks@gmail.com> Andrew Cooper <andrew.cooper3@citrix.com> Andrew Dahl <adahl@sgi.com> Andrew de los Reyes <adlr@chromium.org> Andrew Duggan <aduggan@synaptics.com> Andrew G. Morga...

...gt; Andrew Armenia <andrew@asquaredlabs.com> Andrew Barry <abarry@cray.com> Andrew Bird <ajb@spheresystems.co.uk> Andrew Boie <andrew.p.boie@intel.com> Andrew Bresticker <abrestic@chromium.org> Andrew Brownfield <abrownfi@redhat.com> Andrew Chew <achew@nvidia.com> Andrew Collins <bsderandrew@gmail.com> Andrew Cooks <acooks@gmail.com> Andrew Cooper <andrew.cooper3@citrix.com> Andrew Dahl <adahl@sgi.com> Andrew de los Reyes <adlr@chromium.org> Andrew Duggan <aduggan@synaptics.com> Andrew G. Morga...

...gt; Andrew Armenia <andrew@asquaredlabs.com> Andrew Barry <abarry@cray.com> Andrew Bird <ajb@spheresystems.co.uk> Andrew Boie <andrew.p.boie@intel.com> Andrew Bresticker <abrestic@chromium.org> Andrew Brownfield <abrownfi@redhat.com> Andrew Chew <achew@nvidia.com> Andrew Collins <bsderandrew@gmail.com> Andrew Cooks <acooks@gmail.com> Andrew Cooper <andrew.cooper3@citrix.com> Andrew Dahl <adahl@sgi.com> Andrew de los Reyes <adlr@chromium.org> Andrew Duggan <aduggan@synaptics.com> Andrew G. Morga...

...gt; Andrew Armenia <andrew@asquaredlabs.com> Andrew Barry <abarry@cray.com> Andrew Bird <ajb@spheresystems.co.uk> Andrew Boie <andrew.p.boie@intel.com> Andrew Bresticker <abrestic@chromium.org> Andrew Brownfield <abrownfi@redhat.com> Andrew Chew <achew@nvidia.com> Andrew Collins <bsderandrew@gmail.com> Andrew Cooks <acooks@gmail.com> Andrew Cooper <andrew.cooper3@citrix.com> Andrew Dahl <adahl@sgi.com> Andrew de los Reyes <adlr@chromium.org> Andrew Duggan <aduggan@synaptics.com> Andrew G. Morga...

...gt; Andrew Armenia <andrew@asquaredlabs.com> Andrew Barry <abarry@cray.com> Andrew Bird <ajb@spheresystems.co.uk> Andrew Boie <andrew.p.boie@intel.com> Andrew Bresticker <abrestic@chromium.org> Andrew Brownfield <abrownfi@redhat.com> Andrew Chew <achew@nvidia.com> Andrew Collins <bsderandrew@gmail.com> Andrew Cooks <acooks@gmail.com> Andrew Cooper <andrew.cooper3@citrix.com> Andrew Dahl <adahl@sgi.com> Andrew de los Reyes <adlr@chromium.org> Andrew Duggan <aduggan@synaptics.com> Andrew G. Morga...