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(parent: fe52ab0) | 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)
commit2de52fc931bd3bba8752326c7dfe7c1bc677dfc2
tree0e485b0460c8235819ffea99e2a9672384c52cf5tree | snapshot
parentfe52ab02f2a66f2939dea1860f281e9f8795b38fcommit | 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
Linux Kernel Source Tree.