[igt-dev] [PATCH i-g-t 2/2] lib/intel_chipset: restore usage of has_flatccs flag

Juha-Pekka Heikkila juhapekka.heikkila at gmail.com
Mon Jun 6 12:00:54 UTC 2022


On 6.6.2022 14.03, Zbigniew Kempczyński wrote:
> On Mon, Jun 06, 2022 at 12:05:11PM +0300, Juha-Pekka Heikkila wrote:
>> When older patches had been merged on top of newer patches
>> has_flatccs flag usage had gotten lost, put it back here.
>> While at it also set has_flatccs flag to take only one bit
>> since it is of boolean type.
>>
>> CC: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
>> Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
>> ---
>>   lib/intel_chipset.h | 5 ++---
>>   1 file changed, 2 insertions(+), 3 deletions(-)
>>
>> diff --git a/lib/intel_chipset.h b/lib/intel_chipset.h
>> index 815474086..de4749e14 100644
>> --- a/lib/intel_chipset.h
>> +++ b/lib/intel_chipset.h
>> @@ -41,7 +41,7 @@ struct intel_device_info {
>>   	unsigned display_ver;
>>   	unsigned gt; /* 0 if unknown */
>>   	bool has_4tile : 1;
>> -	bool has_flatccs;
>> +	bool has_flatccs : 1;
>>   	bool is_mobile : 1;
>>   	bool is_whitney : 1;
>>   	bool is_almador : 1;
>> @@ -221,7 +221,6 @@ void intel_check_pch(void);
>>   
>>   #define HAS_4TILE(devid)	(intel_get_device_info(devid)->has_4tile)
>>   
>> -/* use HAS_4TILE here as all devices with 4-tile have flat ccs. */
>> -#define HAS_FLATCCS(devid)	HAS_4TILE(devid)
>> +#define HAS_FLATCCS(devid)	(intel_get_device_info(devid)->has_flatccs)
> 
> Uhm, dg1 has 4tile but this doesn't implicate it has flatccs, so:
> 
> Acked-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
> 

Hi, thanks for the ack. About that dg1, you are not remembering some 
other platform by mistake? I didn't spot 4tile being enabled for dg1 on 
kernel, on platform definition I noticed it only enabled in DG2_FEATURES

/Juha-Pekka


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