[PATCH v10 03/23] drm/i915/vm_bind: Expose i915_gem_object_max_page_size()

[Andi Shyti]

Hi Niranjana,

On Tue, Jan 17, 2023 at 11:15:49PM -0800, Niranjana Vishwanathapura wrote:
> Expose i915_gem_object_max_page_size() function non-static
> which will be used by the vm_bind feature.
> 
> Reviewed-by: Matthew Auld <matthew.auld at intel.com>
> Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura at intel.com>
> Signed-off-by: Andi Shyti <andi.shyti at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/gem/i915_gem_create.c | 18 +++++++++++++-----
>  drivers/gpu/drm/i915/gem/i915_gem_object.h |  2 ++
>  2 files changed, 15 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c
> index 005a7f842784..86469710bd59 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_create.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c
> @@ -15,10 +15,18 @@
>  #include "i915_trace.h"
>  #include "i915_user_extensions.h"
>  
> -static u32 object_max_page_size(struct intel_memory_region **placements,
> -				unsigned int n_placements)
> +/**
> + * i915_gem_object_max_page_size() - max of min_page_size of the regions
> + * @placements:  list of regions
> + * @n_placements: number of the placements
> + *
> + * Returns the largest of min_page_size of the @placements,
> + * or I915_GTT_PAGE_SIZE_4K if @n_placements is 0.
> + */
> +u32 i915_gem_object_max_page_size(struct intel_memory_region **placements,
> +				  unsigned int n_placements)
>  {
> -	u32 max_page_size = 0;
> +	u32 max_page_size = I915_GTT_PAGE_SIZE_4K;
>  	int i;
>  
>  	for (i = 0; i < n_placements; i++) {
> @@ -28,7 +36,6 @@ static u32 object_max_page_size(struct intel_memory_region **placements,
>  		max_page_size = max_t(u32, max_page_size, mr->min_page_size);
>  	}
>  
> -	GEM_BUG_ON(!max_page_size);

this change, though, is not described in the commit log. Can you
please add two lines?

Thanks,
Andi

>  	return max_page_size;
>  }
>  
> @@ -99,7 +106,8 @@ __i915_gem_object_create_user_ext(struct drm_i915_private *i915, u64 size,
>  
>  	i915_gem_flush_free_objects(i915);
>  
> -	size = round_up(size, object_max_page_size(placements, n_placements));
> +	size = round_up(size, i915_gem_object_max_page_size(placements,
> +							    n_placements));
>  	if (size == 0)
>  		return ERR_PTR(-EINVAL);
>  
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
> index 3db53769864c..5455ca0eabe9 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
> @@ -47,6 +47,8 @@ static inline bool i915_gem_object_size_2big(u64 size)
>  }
>  
>  void i915_gem_init__objects(struct drm_i915_private *i915);
> +u32 i915_gem_object_max_page_size(struct intel_memory_region **placements,
> +				  unsigned int n_placements);
>  
>  void i915_objects_module_exit(void);
>  int i915_objects_module_init(void);
> -- 
> 2.21.0.rc0.32.g243a4c7e27