On Wed, Nov 19, 2014 at 8:47 PM, Paulo Zanoni <przanoni@xxxxxxxxx> wrote: > > 2. How should the driver interface look like? > > a. All the possibilities are passed through the function call, so the drm.ko > code needs to set the struct members itself. > b. The caller already sets the struct members instead of passing them as > parameters to the function. > c. Something different? We need b because the caller must allocate the structure (the point where we can return -ENOMEM to userspace might be much after the point where we need to schedule a vblank callback for e.g. async flips). But for simple interfaces we need a few things passed directly I think (since I expect that we'll reuse vblank callback structures similar to how we reuse timers/work items). I'll follow up with a detailed review of the new interface exposed to drivers and what I think it should look like, need to head off now. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
