[PATCH 1/2] drm/amdgpu: fix re-program vm invalidate eng address range for gfxhub on resume

[Christian König]

Am 17.05.2017 um 09:55 schrieb Huang Rui:
> On Wed, May 17, 2017 at 03:43:47PM +0800, Zhou, David(ChunMing) wrote:
>> By this change, I suggest to remove mmhub/gfxhub_v1_0_ip_funcs and their
>> IP block, unify them to gmc ip block, this way we cannot lost setting
>> when resume back.
>>
>  From hw side, wo won't have real gmc since this chip, mmhub and gfxhub(gc)
> instead of it. Maybe we would better to align with hw desgin.

Yeah, I had patches for doing exactly this but then decided dropping it.

What we should do is to have any one implementation of the code handling 
both hubs and then have both as separate IP block in the list.

Anyway for now both patches are Reviewed-by: Christian König 
<christian.koenig at amd.com>.

I assume that finally fixes S3 on Vega10?

Regards,
Christian.

>
> Thanks,
> Rui
>
>> Regards,
>> David Zhou
>>
>> On 2017年05月17日 15:38, Huang Rui wrote:
>>> Signed-off-by: Huang Rui <ray.huang at amd.com>
>>> ---
>>>    drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c | 2 +-
>>>    1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/
>> amdgpu/gfxhub_v1_0.c
>>> index 005075f..41313514 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
>>> @@ -368,7 +368,7 @@ static int gfxhub_v1_0_suspend(void *handle)
>>>   
>>>    static int gfxhub_v1_0_resume(void *handle)
>>>    {
>>> -     return 0;
>>> +     return gfxhub_v1_0_hw_init(handle);
>>>    }
>>>   
>>>    static bool gfxhub_v1_0_is_idle(void *handle)