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

[Christian König <christian.koenig@amd.com>]

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.
> 
> 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;
>  };