On 09/11/17 03:49 PM, Christian König wrote:
> Similar to the CPU address space the VA on Vega10 has a hole in it.
[...]
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> index 4710e51099c2..81c34132fbd5 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
> @@ -561,6 +561,17 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void
> *data,
> return -EINVAL;
> }
>
> + if (args->va_address >= AMDGPU_VA_HOLE_START &&
> + args->va_address < AMDGPU_VA_HOLE_END) {
> + dev_err(&dev->pdev->dev,
> + "va_address 0x%LX is in VA hole 0x%LX-0x%LX\n",
> + args->va_address, AMDGPU_VA_HOLE_START,
> + AMDGPU_VA_HOLE_END);
> + return -EINVAL;
> + }
This should probably be dev_dbg instead of dev_err, to prevent buggy (or
malicious) userspace from spamming dmesg.
--
Earthling Michel Dänzer | http://www.amd.com
Libre software enthusiast | Mesa and X developer
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