On Thu, Sep 16, 2021 at 01:39:49PM +0300, Mikko Perttunen wrote: > On 9/16/21 12:44 PM, Thierry Reding wrote: > > From: Thierry Reding <tred...@nvidia.com> > > ... > > diff --git a/drivers/gpu/drm/tegra/uapi.c b/drivers/gpu/drm/tegra/uapi.c > > index 794c400c38b1..66fe8717e747 100644 > > --- a/drivers/gpu/drm/tegra/uapi.c > > +++ b/drivers/gpu/drm/tegra/uapi.c > > @@ -201,7 +201,8 @@ int tegra_drm_ioctl_channel_map(struct drm_device *drm, > > void *data, struct drm_f > > goto put_gem; > > } > > - mapping->map = host1x_bo_pin(context->client->base.dev, mapping->bo, > > direction); > > + mapping->map = host1x_bo_pin(context->client->base.dev, mapping->bo, > > direction, > > + &context->client->base.cache); > > Do we need caching here? The map/unmap operation is explicit and should not > be on the hot path, and this will complicate context isolation support where > we cannot have an engine-specific cache.
Yeah, we can probably leave it out here. I more or less blindly added caches for everything, but really they're the most useful for cursors and large framebuffers that will otherwise get mapped/unmapped once every frame. Thierry
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