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

[Kuehling, Felix]

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.kuehl...@amd.com>
Reviewed-by: Christian König <christian.koe...@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;
  };