[PATCH v6 0/4] drm/xe/vf: Post-migration recovery of GGTT nodes and CTB

[Michal Wajdeczko]

Hi Tomasz,

This series should be primary sent to the intel-xe as series is xe
specific and it's the only way to get CI results for the xe driver.

Once you dropped the drm_mm patch, the dri-devel is not required.

On 31.03.2025 15:21, Tomasz Lis wrote:
> To support VF Migration, it is necessary to do fixups to any
> non-virtualized resources. These fixups need to be applied within
> VM, on the KMD working with VF.
> 
> This series adds two fixup functions to the recovery worker:
> * for fixing drm_mm nodes which represent GGTT allocations
> * for fixing content of outgoing CTB buffer
> 
> v2: Fixed missing include, made checkpatch happy
> v3: Moved some functs to xe_ggtt.c; moved shift computation to just
>   after querying; improved documentation; switched some warns to asserts;
>   skipping fixups when GGTT shift eq 0; iterating through tiles rather
>   than gts; fixes in log messages
> v4: Updated kerneldocs, removed unused funct, properly allocate
>   balloning nodes if non existent, removed inline keywords, enums for
>   offsets in CTB messages, less error messages, if return unused then
>   made functs void
> v5: Removed drm_mm change, but added VF init modifications. These then
>   allowed to re-use ballooning functions during ggtt node fixing.
> v6: Minor update - fixed some misplaced funct declarations
> 
> Tomasz Lis (4):
>   drm/xe/vf: Divide ballooning into allocation and insertion
>   drm/xe/sriov: Shifting GGTT area post migration
>   drm/xe/guc: Introduce enum with offsets for multi-LRC register H2G
>   drm/xe/vf: Fixup CTB send buffer messages after migration
> 
>  drivers/gpu/drm/xe/abi/guc_actions_abi.h  |   7 ++
>  drivers/gpu/drm/xe/xe_ggtt.c              |  40 ++++--
>  drivers/gpu/drm/xe/xe_ggtt.h              |   1 +
>  drivers/gpu/drm/xe/xe_gt_sriov_vf.c       | 147 +++++++++++++++++++---
>  drivers/gpu/drm/xe/xe_gt_sriov_vf.h       |   3 +
>  drivers/gpu/drm/xe/xe_gt_sriov_vf_types.h |   2 +
>  drivers/gpu/drm/xe/xe_guc_ct.c            | 142 +++++++++++++++++++++
>  drivers/gpu/drm/xe/xe_guc_ct.h            |   2 +
>  drivers/gpu/drm/xe/xe_guc_submit.c        |   4 +
>  drivers/gpu/drm/xe/xe_sriov_vf.c          |  42 +++++++
>  10 files changed, 368 insertions(+), 22 deletions(-)
>