[PATCH v1] drm/xe/ptl: Apply Wa_16026007364

[Anirban, Sk]

Hi,

On 19-06-2025 11:01, Nilawar, Badal wrote:
>
> On 19-06-2025 10:40, Sk Anirban wrote:
>> As part of this WA GuC will save and restore value of two XE3_Media
>> control registers that were not included in the HW power context.
>>
>> Signed-off-by: Sk Anirban <sk.anirban at intel.com>
>> ---
>>   drivers/gpu/drm/xe/abi/guc_klvs_abi.h | 1 +
>>   drivers/gpu/drm/xe/xe_guc_ads.c       | 5 +++++
>>   drivers/gpu/drm/xe/xe_wa_oob.rules    | 1 +
>>   3 files changed, 7 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h 
>> b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
>> index 7de8f827281f..c4aebb7a9dc6 100644
>> --- a/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
>> +++ b/drivers/gpu/drm/xe/abi/guc_klvs_abi.h
>> @@ -368,6 +368,7 @@ enum xe_guc_klv_ids {
>> GUC_WORKAROUND_KLV_ID_BACK_TO_BACK_RCS_ENGINE_RESET = 0x9009,
>> GUC_WA_KLV_WAKE_POWER_DOMAINS_FOR_OUTBOUND_MMIO = 0x900a,
>> GUC_WA_KLV_RESET_BB_STACK_PTR_ON_VF_SWITCH                    = 0x900b,
>> + GUC_WA_KLV_OAM_CONTEXT_SAVE_AND_RESTORE                        = 
>> 0x900c,
>
> Please change the name of klv to 
> GUC_WA_KLV_RESTORE_REG_FOR_OAM_LATENCY_MEASUREMENTS. Rest of the 
> implementation is fine.
>
> Badal
Sure, I will fix this.

Regards,
Anirban
>
>
>>   };
>>     #endif
>> diff --git a/drivers/gpu/drm/xe/xe_guc_ads.c 
>> b/drivers/gpu/drm/xe/xe_guc_ads.c
>> index 07a027755627..27668cc25ef9 100644
>> --- a/drivers/gpu/drm/xe/xe_guc_ads.c
>> +++ b/drivers/gpu/drm/xe/xe_guc_ads.c
>> @@ -382,6 +382,11 @@ static void guc_waklv_init(struct xe_guc_ads *ads)
>> GUC_WA_KLV_RESET_BB_STACK_PTR_ON_VF_SWITCH,
>>                       &offset, &remain);
>>   +    if (XE_WA(gt, 16026007364))
>> +        guc_waklv_enable_simple(ads,
>> +                    GUC_WA_KLV_OAM_CONTEXT_SAVE_AND_RESTORE,
>> +                    &offset, &remain);
>> +
>>       size = guc_ads_waklv_size(ads) - remain;
>>       if (!size)
>>           return;
>> diff --git a/drivers/gpu/drm/xe/xe_wa_oob.rules 
>> b/drivers/gpu/drm/xe/xe_wa_oob.rules
>> index 9efc5accd43d..4bf0df0ed663 100644
>> --- a/drivers/gpu/drm/xe/xe_wa_oob.rules
>> +++ b/drivers/gpu/drm/xe/xe_wa_oob.rules
>> @@ -59,3 +59,4 @@ no_media_l3    MEDIA_VERSION(3000)
>>           MEDIA_VERSION_RANGE(1301, 3000)
>>   16026508708    GRAPHICS_VERSION_RANGE(1200, 3001)
>>           MEDIA_VERSION_RANGE(1300, 3000)
>> +16026007364     MEDIA_VERSION(3000)