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.

Lucas Stach committed 7 years ago

Commit edb5ff01 parent 17e46601 file · +2 −1Browse files

Unified · Split

drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c+2−1

@@ -517,7 +517,8 @@ int etnaviv_ioctl_gem_submit(struct drm_device dev, void data, · 516 unmodified lines
517	517	if (ret)
518	518	goto err_submit_objects;
519	519
520		− if (!etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4,
	520	+ if ((priv->mmu_global->version != ETNAVIV_IOMMU_V2) &&
	521	+ !etnaviv_cmd_validate_one(gpu, stream, args->stream_size / 4,
521	522	relocs, args->nr_relocs)) {
522	523	ret = -EINVAL;
523	524	goto err_submit_objects;

drm/etnaviv: skip command stream validation on PPAS capable GPUs

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