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(parent: 571cbf7) | patch
gpu: host1x: Forbid RESTART opcode in the firewall
authorDmitry Osipenko <digetx@gmail.com>
Wed, 14 Jun 2017 23:18:36 +0000 (02:18 +0300)
committerThierry Reding <treding@nvidia.com>
Thu, 15 Jun 2017 12:23:18 +0000 (14:23 +0200)
commitef81624994845a50e90c6a0ff57f17d1c96bff78
tree0e485b0460c8235819ffea99e2a9672384c52cf5tree
parent571cbf70c117664d142b34fa2b3b915d8374a327commit | diff
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 diff | blob | history
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