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[v2,15/22] gpu: host1x: Forbid RESTART opcode in the firewall

Message ID da122d97e8c3249c8014a558dff06c1e2bce3c43.1497394243.git.digetx@gmail.com
State Superseded, archived
Headers show

Commit Message

Dmitry Osipenko June 13, 2017, 11:15 p.m. UTC 
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>
---
 drivers/gpu/host1x/job.c | 1 -
 1 file changed, 1 deletion(-)
diff mbox

Patch

diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index 7825643da324..3680b4b7dce9 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -515,7 +515,6 @@  static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g)
 				goto out;
 			break;
 		case 4:
-		case 5:
 		case 14:
 			break;
 		default: