Commit ef816249 authored Jun 15, 2017 by Dmitry Osipenko Committed by Thierry Reding Jun 15, 2017

gpu: host1x: Forbid RESTART opcode in the firewall



The RESTART opcode terminates the gather and restarts the CDMA fetching
from a specified word << 2 relative to the CDMA start address. That
shouldn't be allowed to be done by userspace.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

parent 571cbf70

drivers/gpu/host1x/job.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -495,7 +495,6 @@ static int validate(struct host1x_firewall fw, struct host1x_job_gather g)
		goto out;
		break;
		case 4:
		case 5:
		case 14:
		break;
		default: