[PATCH] drm/amdgpu: Don't need to call csb_vram_unpin

[Christian König]

Am 27.05.19 um 10:41 schrieb Emily Deng:
> As it will destroy clear_state_obj, and also will
> unpin it in the gfx_v9_0_sw_fini, so don't need to
> call csb_vram unpin in gfx_v9_0_hw_fini, or it will
> have unpin warning.
>
> v2: For suspend, still need to do unpin
>
> Signed-off-by: Emily Deng <Emily.Deng at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> index 5eb70e8..5b1ff48 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -3395,7 +3395,8 @@ static int gfx_v9_0_hw_fini(void *handle)
>   	gfx_v9_0_cp_enable(adev, false);
>   	adev->gfx.rlc.funcs->stop(adev);
>   
> -	gfx_v9_0_csb_vram_unpin(adev);
> +	if (adev->in_suspend)
> +		gfx_v9_0_csb_vram_unpin(adev);

That doesn't looks like a good idea to me.

Why do we have unpin both in the sw_fini as well as the hw_fini code paths?

Regards,
Christian.

>   
>   	return 0;
>   }