diff mbox

gpu: host1x: Forbid RESTART opcode in the firewall

Message ID 20170515120215.28273-1-digetx@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Dmitry Osipenko May 15, 2017, 12:02 p.m. UTC 
The RESTART opcode terminates the gather and restarts the CDMA fetch 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>
---
 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 8f0d43b8f9a6..d648748b3e74 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -493,7 +493,6 @@  static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g)
 				goto out;
 			break;
 		case 4:
-		case 5:
 		case 14:
 			break;
 		default: