[PATCH v3 07/12] drm/xe: Add xe_ggtt_might_lock

Matthew Brost matthew.brost at intel.com
Fri Oct 4 06:28:40 UTC 2024


On Thu, Oct 03, 2024 at 05:44:16PM +0200, Maarten Lankhorst wrote:
> Another requirement of hiding more of struct xe_ggtt.
> 
> Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>

Reviewed-by: Matthew Brost <matthew.brost at intel.com>

> ---
>  drivers/gpu/drm/xe/xe_bo.c   | 2 +-
>  drivers/gpu/drm/xe/xe_ggtt.c | 7 +++++++
>  drivers/gpu/drm/xe/xe_ggtt.h | 7 +++++++
>  3 files changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
> index 5f2f1ec46b57a..f85c389e9a1f8 100644
> --- a/drivers/gpu/drm/xe/xe_bo.c
> +++ b/drivers/gpu/drm/xe/xe_bo.c
> @@ -2359,7 +2359,7 @@ void xe_bo_put(struct xe_bo *bo)
>  			might_lock(&bo->client->bos_lock);
>  #endif
>  		if (bo->ggtt_node && bo->ggtt_node->ggtt)
> -			might_lock(&bo->ggtt_node->ggtt->lock);
> +			xe_ggtt_might_lock(bo->ggtt_node->ggtt);
>  		drm_gem_object_put(&bo->ttm.base);
>  	}
>  }
> diff --git a/drivers/gpu/drm/xe/xe_ggtt.c b/drivers/gpu/drm/xe/xe_ggtt.c
> index 1ffc0917e28fe..7e5a793651583 100644
> --- a/drivers/gpu/drm/xe/xe_ggtt.c
> +++ b/drivers/gpu/drm/xe/xe_ggtt.c
> @@ -175,6 +175,13 @@ static void ggtt_fini(void *arg)
>  	ggtt->scratch = NULL;
>  }
>  
> +#ifdef CONFIG_LOCKDEP
> +void xe_ggtt_might_lock(struct xe_ggtt *ggtt)
> +{
> +	might_lock(&ggtt->lock);
> +}
> +#endif
> +
>  static void primelockdep(struct xe_ggtt *ggtt)
>  {
>  	if (!IS_ENABLED(CONFIG_LOCKDEP))
> diff --git a/drivers/gpu/drm/xe/xe_ggtt.h b/drivers/gpu/drm/xe/xe_ggtt.h
> index bdf6d0733e2ca..62c8ce636939a 100644
> --- a/drivers/gpu/drm/xe/xe_ggtt.h
> +++ b/drivers/gpu/drm/xe/xe_ggtt.h
> @@ -38,4 +38,11 @@ u64 xe_ggtt_print_holes(struct xe_ggtt *ggtt, u64 alignment, struct drm_printer
>  void xe_ggtt_assign(const struct xe_ggtt_node *node, u16 vfid);
>  #endif
>  
> +#ifndef CONFIG_LOCKDEP
> +static inline void xe_ggtt_might_lock(struct xe_ggtt *ggtt)
> +{ }
> +#else
> +void xe_ggtt_might_lock(struct xe_ggtt *ggtt);
> +#endif
> +
>  #endif
> -- 
> 2.45.2
> 


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