Re: [PATCH v10 09/10] drm/xe/ggtt: Add KUnit stub for xe_ggtt_shift_nodes()

[Michal Wajdeczko <michal.wajdeczko@intel.com>]

On 9/21/2026 11:21 AM, Satyanarayana K V P wrote:
> Allow to replace xe_ggtt_shift_nodes() with a stub so that VF GGTT
> provisioning can be exercised on the fake xe device, which has no real
> struct xe_ggtt instance.

hmm, but we do have xe_ggtt_init_kunit(), maybe you missed something else?

> 
> Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
> ---
>  drivers/gpu/drm/xe/xe_ggtt.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/xe_ggtt.c b/drivers/gpu/drm/xe/xe_ggtt.c
> index 2557e51bb7cc..082a6bbef01c 100644
> --- a/drivers/gpu/drm/xe/xe_ggtt.c
> +++ b/drivers/gpu/drm/xe/xe_ggtt.c
> @@ -5,6 +5,7 @@
>  
>  #include "xe_ggtt.h"
>  
> +#include <kunit/static_stub.h>
>  #include <kunit/visibility.h>
>  #include <linux/fault-inject.h>
>  #include <linux/io-64-nonatomic-lo-hi.h>
> @@ -654,6 +655,8 @@ static void xe_ggtt_invalidate_engine(struct xe_ggtt *ggtt)
>   */
>  void xe_ggtt_shift_nodes(struct xe_ggtt *ggtt, u64 new_start)
>  {
> +	KUNIT_STATIC_STUB_REDIRECT(xe_ggtt_shift_nodes, ggtt, new_start);
> +
>  	guard(mutex)(&ggtt->lock);
>  
>  	xe_tile_assert(ggtt->tile, new_start >= xe_wopcm_size(tile_to_xe(ggtt->tile)));