[PATCH] drm/amdgpu: add check when no firmware need to load

[Alex Deucher]

On Wed, Jun 14, 2017 at 3:27 AM, Huang Rui <ray.huang at amd.com> wrote:
> Signed-off-by: Huang Rui <ray.huang at amd.com>
> ---
>
> Hi Alex, Ken,
>
> This patch is fixing the check to let driver be able to work only enabling
> common/gmc/ih/psp blocks. It's useful to debug issue.
>
> Thanks,
> Ray

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
> index 076253e..4794d26 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.c
> @@ -347,6 +347,11 @@ int amdgpu_ucode_init_bo(struct amdgpu_device *adev)
>         struct amdgpu_firmware_info *ucode = NULL;
>         const struct common_firmware_header *header = NULL;
>
> +       if (!adev->firmware.fw_size) {
> +               dev_warn(adev->dev, "No ip firmware need to load\n");
> +               return 0;
> +       }
> +
>         err = amdgpu_bo_create(adev, adev->firmware.fw_size, PAGE_SIZE, true,
>                                 amdgpu_sriov_vf(adev) ? AMDGPU_GEM_DOMAIN_VRAM : AMDGPU_GEM_DOMAIN_GTT,
>                                 0, NULL, NULL, bo);
> @@ -428,6 +433,9 @@ int amdgpu_ucode_fini_bo(struct amdgpu_device *adev)
>         int i;
>         struct amdgpu_firmware_info *ucode = NULL;
>
> +       if (!adev->firmware.fw_size)
> +               return 0;
> +
>         for (i = 0; i < adev->firmware.max_ucodes; i++) {
>                 ucode = &adev->firmware.ucode[i];
>                 if (ucode->fw) {
> --
> 2.7.4
>
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