[PATCH 1/2] drm/amdkfd: Add chained_runlist_idle_disable flag to pm4_mes_runlist

[Kuehling, Felix]

Ping.

Oak, can I get your Reviewed-by for this patch series?

Thank,
   Felix

On 2019-06-20 3:34 p.m., Kuehling, Felix wrote:
> Yes. MEC firmware version #425 should have the necessary change.
>
> Regards,
>     Felix
>
> On 2019-06-20 3:23 p.m., Zeng, Oak wrote:
>> Hi Felix,
>>
>> Does this require a MEC firmware change?
>>
>> Regards,
>> Oak
>>
>> -----Original Message-----
>> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Kuehling, Felix
>> Sent: Thursday, June 20, 2019 3:22 PM
>> To: amd-gfx at lists.freedesktop.org
>> Cc: Kuehling, Felix <Felix.Kuehling at amd.com>
>> Subject: [PATCH 1/2] drm/amdkfd: Add chained_runlist_idle_disable flag to pm4_mes_runlist
>>
>> New flag to disable an idle runlist optimization that is causing soft hangs with some diffult-to-reproduce customer workloads. This will serve as a workaround until the problem can be reproduced and the root-cause determined.
>>
>> Signed-off-by: Felix Kuehling <Felix.Kuehling at amd.com>
>> ---
>>    drivers/gpu/drm/amd/amdkfd/kfd_pm4_headers_ai.h | 2 +-
>>    1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_pm4_headers_ai.h b/drivers/gpu/drm/amd/amdkfd/kfd_pm4_headers_ai.h
>> index 49ab66b703fa..e3e21404cfa0 100644
>> --- a/drivers/gpu/drm/amd/amdkfd/kfd_pm4_headers_ai.h
>> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_pm4_headers_ai.h
>> @@ -120,7 +120,7 @@ struct pm4_mes_runlist {
>>    			uint32_t ib_size:20;
>>    			uint32_t chain:1;
>>    			uint32_t offload_polling:1;
>> -			uint32_t reserved2:1;
>> +			uint32_t chained_runlist_idle_disable:1;
>>    			uint32_t valid:1;
>>    			uint32_t process_cnt:4;
>>    			uint32_t reserved3:4;
>> --
>> 2.17.1
>>
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