From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: [PATCH 15/22] gpu: host1x: Forbid RESTART opcode in the firewall Date: Tue, 23 May 2017 03:14:30 +0300 Message-ID: References: Return-path: In-Reply-To: In-Reply-To: References: Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Thierry Reding , Mikko Perttunen Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, DRI Development , Erik Faye-Lund List-Id: dri-devel@lists.freedesktop.org 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 Reviewed-by: Erik Faye-Lund --- 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 1a1568e64ba8..cf335c5979e2 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -497,7 +497,6 @@ static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g) goto out; break; case 4: - case 5: case 14: break; default: -- 2.13.0