3 Commits

Author	SHA1	Message	Date
Thierry Reding	b91bf997ea	drm/tegra: falcon: Wait for memory scrubbing to complete ... Before booting the Falcon processor, make sure to wait for memory scrubbing to complete. Signed-off-by: Thierry Reding <treding@nvidia.com>	2018-11-29 17:11:49 +01:00
Thierry Reding	4eab8c0ebd	drm/tegra: falcon: Fix error handling ... The ->alloc() callback in struct falcon_ops returns an ERR_PTR()-encoded error code on failure, so it needs to be properly checked for, otherwise subsequent code may dereference an invalid pointer. Signed-off-by: Thierry Reding <treding@nvidia.com>	2018-11-29 17:11:49 +01:00
Arto Merilainen	8746f6593d	drm/tegra: Add falcon helper library ... Add a set of falcon helper routines for use by the tegradrm client drivers of the various falcon-based engines. The falcon is a microcontroller that acts as a frontend for the rest of a particular Tegra engine. In order to properly utilize these engines, the frontend must be booted before pushing any commands. Based on work by Andrew Chew <achew@nvidia.com> Signed-off-by: Andrew Chew <achew@nvidia.com> Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>	2017-04-05 18:11:47 +02:00