From ef81624994845a50e90c6a0ff57f17d1c96bff78 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko <digetx@gmail.com> Date: Thu, 15 Jun 2017 02:18:36 +0300 Subject: [PATCH] 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> --- drivers/gpu/host1x/job.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c index a911de6386b4..54230ec4f81e 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -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: -- 2.30.9