On Wed, Apr 24, 2024 at 1:57 PM Harish Kasiviswanathan
<Harish.Kasiviswanathan@xxxxxxx> wrote:
>
> Queue buffer, though it is in system memory, has to be created using the
> correct amdgpu device. Enforce this as the BO needs to mapped to the
> GART for MES Hardware scheduler to access it.
>
> Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
> ---
> drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> index 8fd5e0da628c..963cf6d657cb 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
> @@ -373,6 +373,11 @@ static int kfd_ioctl_create_queue(struct file *filep, struct kfd_process *p,
> err = -EINVAL;
> goto err_wptr_map_gart;
> }
> + if (dev->adev != amdgpu_ttm_adev(wptr_bo->tbo.bdev)) {
> + pr_err("Queue memory allocated to wrong device\n");
> + err = -EINVAL;
> + goto err_wptr_map_gart;
> + }
>
> err = amdgpu_amdkfd_map_gtt_bo_to_gart(dev->adev, wptr_bo);
> if (err) {
> --
> 2.34.1
>
