[PATCH v2 1/2] drm/amdkfd: handle svm migrate init error

[Felix Kuehling]

On 2021-09-21 2:53 p.m., Philip Yang wrote:
> If svm migration init failed to create pgmap for device memory, set
> pgmap type to 0 to disable device SVM support capability.
>
> Signed-off-by: Philip Yang <Philip.Yang at amd.com>

The series is

Reviewed-by: Felix Kuehling <Felix.Kuehling at amd.com>


> ---
>   drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> index dab290a4d19d..165e0ebb619d 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
> @@ -894,6 +894,9 @@ int svm_migrate_init(struct amdgpu_device *adev)
>   	r = devm_memremap_pages(adev->dev, pgmap);
>   	if (IS_ERR(r)) {
>   		pr_err("failed to register HMM device memory\n");
> +
> +		/* Disable SVM support capability */
> +		pgmap->type = 0;
>   		devm_release_mem_region(adev->dev, res->start,
>   					res->end - res->start + 1);
>   		return PTR_ERR(r);