[PATCH] drm/amdgpu: correct comment to clear up the confusion

[Christian König]

Am 11.02.20 um 05:16 schrieb Guchun Chen:
> Former comment looks to be one intended behavior in code,
> actually it's not. So correct it.
>
> Suggested-by: Christian König <christian.koenig at amd.com>
> Signed-off-by: Guchun Chen <guchun.chen at amd.com>

Acked-by: Christian König <christian.koenig at amd.com>

> ---
>   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 7 ++++++-
>   1 file changed, 6 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 af341a272e30..82476f6acfad 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
> @@ -4374,7 +4374,12 @@ static int gfx_v9_0_ecc_late_init(void *handle)
>   	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
>   	int r;
>   
> -	/* limit gds clearing operation in cold boot sequence */
> +	/*
> +	 * Temp workaround to fix the issue that CP firmware fails to
> +	 * update read pointer when CPDMA is writing clearing operation
> +	 * to GDS in suspend/resume sequence on several cards. So just
> +	 * limit this operation in cold boot sequence.
> +	 */
>   	if (!adev->in_suspend) {
>   		r = gfx_v9_0_do_edc_gds_workarounds(adev);
>   		if (r)