Re: [PATCH v2] drm/ttm: Support 52-bit PAs in ttm_place

["Kuehling, Felix" <felix.kuehling@amd.com>]

On 2026-05-13 09:19, Christian König wrote:
> On 5/13/26 16:12, Felix Kuehling wrote:
>> fpfn and lpfn in struct ttm_place are 32-bit page numbers. With 4KB page
>> size this can support up to 44-bit physical addressing. Grow these to
>> unsigned long to support larger physical addresses.

I forgot to update the commit message. It still says unsigned long. 
@Arun, can you update that before you push it to drm-misc-next?

Thanks,
   Felix


>>
>> Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
> Reviewed-by: Christian König <christian.koenig@amd.com>
>
> @Arun can you pick that one up and push it to drm-misc-next?
>
> Thanks,
> Christian.
>
>> ---
>>   include/drm/ttm/ttm_placement.h | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/include/drm/ttm/ttm_placement.h b/include/drm/ttm/ttm_placement.h
>> index b510a4812609..ab2639e42c54 100644
>> --- a/include/drm/ttm/ttm_placement.h
>> +++ b/include/drm/ttm/ttm_placement.h
>> @@ -81,8 +81,8 @@
>>    * Structure indicating a possible place to put an object.
>>    */
>>   struct ttm_place {
>> -	unsigned	fpfn;
>> -	unsigned	lpfn;
>> +	uint64_t	fpfn;
>> +	uint64_t	lpfn;
>>   	uint32_t	mem_type;
>>   	uint32_t	flags;
>>   };