On Tegra234, engines that are programmed through Host1x channels can
be attached to either the NISO0 or NISO1 SMMU. Because of that, when
selecting a context device to use with an engine, we need to select
one that is also attached to the same SMMU.
Add a parameter to host1x_memory_context_alloc to specify which device
we are allocating a context for, and use it to pick an appropriate
context device.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Change-Id: I32af312c85164b72c14409d816d3b50ad5c7bfe5
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2811836
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Add code to register context devices from device tree, allocate them
out and manage their refcounts.
Bug 3724727
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Change-Id: I1e50462fc07247faf4cb217f4ab75fb610b10024
