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| author | Lucas Stach <l.stach@pengutronix.de> | 2019-08-02 14:24:06 +0200 |
|---|---|---|
| committer | Lucas Stach <l.stach@pengutronix.de> | 2019-08-09 17:19:56 +0200 |
| commit | 65b28e77effcb8cafb00b535051309d9346c811e (patch) | |
| tree | 3d9fc35c67e78ffab292066bd00b4ccc598879c4 | |
| parent | 9ec76f34c5bbe09df58e68af6ed15724f17216e3 (diff) | |
| download | linux-65b28e77effcb8cafb00b535051309d9346c811e.tar.gz linux-65b28e77effcb8cafb00b535051309d9346c811e.tar.xz | |
drm/etnaviv: skip command stream validation on PPAS capable GPUs
With per-process address spaces in place, a rogue process submitting
bogus command streams can only hurt itself. There is no need to
validate the command stream before execution anymore.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c index 16e7d371a7ef..63a1206492d2 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c @@ -517,7 +517,8 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, if (ret) goto err_submit_objects; - if (!etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4, + if ((priv->mmu_global->version != ETNAVIV_IOMMU_V2) && + !etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4, relocs, args->nr_relocs)) { ret = -EINVAL; goto err_submit_objects; |