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| author | Dmitry Osipenko <digetx@gmail.com> | 2017-06-15 02:18:36 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2017-06-15 15:23:18 +0300 |
| commit | ef81624994845a50e90c6a0ff57f17d1c96bff78 (patch) | |
| tree | 0e485b0460c8235819ffea99e2a9672384c52cf5 /drivers/gpu/host1x | |
| parent | 571cbf70c117664d142b34fa2b3b915d8374a327 (diff) | |
| download | linux-ef81624994845a50e90c6a0ff57f17d1c96bff78.tar.xz | |
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>
Diffstat (limited to 'drivers/gpu/host1x')
| -rw-r--r-- | drivers/gpu/host1x/job.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c index a911de6386b4..54230ec4f81e 100644 --- a/drivers/gpu/host1x/job.c +++ b/drivers/gpu/host1x/job.c @@ -495,7 +495,6 @@ static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g) goto out; break; case 4: - case 5: case 14: break; default: |