Re: [PATCH v2 02/18] drm/vram: use embedded gem object

[Thomas Zimmermann <tzimmermann@suse.de>]

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Hi

Am 21.06.19 um 13:57 schrieb Gerd Hoffmann:
> Drop drm_gem_object from drm_gem_vram_object, use the
> ttm_buffer_object.base instead.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  include/drm/drm_gem_vram_helper.h           |  3 +--
>  drivers/gpu/drm/ast/ast_main.c              |  2 +-
>  drivers/gpu/drm/drm_gem_vram_helper.c       | 16 ++++++++--------
>  drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c |  2 +-
>  drivers/gpu/drm/mgag200/mgag200_main.c      |  2 +-
>  drivers/gpu/drm/vboxvideo/vbox_main.c       |  2 +-
>  6 files changed, 13 insertions(+), 14 deletions(-)
> 
> diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
> index 9581ea0a4f7e..7b9f50ba3fce 100644
> --- a/include/drm/drm_gem_vram_helper.h
> +++ b/include/drm/drm_gem_vram_helper.h
> @@ -36,7 +36,6 @@ struct vm_area_struct;
>   * video memory becomes scarce.
>   */
>  struct drm_gem_vram_object {
> -	struct drm_gem_object gem;
>  	struct ttm_buffer_object bo;
>  	struct ttm_bo_kmap_obj kmap;
>  
> @@ -68,7 +67,7 @@ static inline struct drm_gem_vram_object *drm_gem_vram_of_bo(
>  static inline struct drm_gem_vram_object *drm_gem_vram_of_gem(
>  	struct drm_gem_object *gem)

To avoid ambiguities, I used the form <destination type name>_of_<field
name>() to name these cast functions. The canonical name here would now
be drm_gem_vram_of_bo_base(). But that's just nitpicking. If you don't
want to change the name (and all its callers), maybe leave a FIXME comment.

Acked-by: Thomas Zimmermann <tzimmermann@suse.de>

Best regards
Thomas

>  {
> -	return container_of(gem, struct drm_gem_vram_object, gem);
> +	return container_of(gem, struct drm_gem_vram_object, bo.base);
>  }
>  
>  struct drm_gem_vram_object *drm_gem_vram_create(struct drm_device *dev,
> diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
> index 4c7e31cb45ff..74e6e471d283 100644
> --- a/drivers/gpu/drm/ast/ast_main.c
> +++ b/drivers/gpu/drm/ast/ast_main.c
> @@ -609,6 +609,6 @@ int ast_gem_create(struct drm_device *dev,
>  			DRM_ERROR("failed to allocate GEM object\n");
>  		return ret;
>  	}
> -	*obj = &gbo->gem;
> +	*obj = &gbo->bo.base;
>  	return 0;
>  }
> diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
> index 4de782ca26b2..61d9520cc15f 100644
> --- a/drivers/gpu/drm/drm_gem_vram_helper.c
> +++ b/drivers/gpu/drm/drm_gem_vram_helper.c
> @@ -24,7 +24,7 @@ static void drm_gem_vram_cleanup(struct drm_gem_vram_object *gbo)
>  	 * TTM buffer object in 'bo' has already been cleaned
>  	 * up; only release the GEM object.
>  	 */
> -	drm_gem_object_release(&gbo->gem);
> +	drm_gem_object_release(&gbo->bo.base);
>  }
>  
>  static void drm_gem_vram_destroy(struct drm_gem_vram_object *gbo)
> @@ -80,7 +80,7 @@ static int drm_gem_vram_init(struct drm_device *dev,
>  	int ret;
>  	size_t acc_size;
>  
> -	ret = drm_gem_object_init(dev, &gbo->gem, size);
> +	ret = drm_gem_object_init(dev, &gbo->bo.base, size);
>  	if (ret)
>  		return ret;
>  
> @@ -98,7 +98,7 @@ static int drm_gem_vram_init(struct drm_device *dev,
>  	return 0;
>  
>  err_drm_gem_object_release:
> -	drm_gem_object_release(&gbo->gem);
> +	drm_gem_object_release(&gbo->bo.base);
>  	return ret;
>  }
>  
> @@ -378,11 +378,11 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file,
>  	if (IS_ERR(gbo))
>  		return PTR_ERR(gbo);
>  
> -	ret = drm_gem_handle_create(file, &gbo->gem, &handle);
> +	ret = drm_gem_handle_create(file, &gbo->bo.base, &handle);
>  	if (ret)
>  		goto err_drm_gem_object_put_unlocked;
>  
> -	drm_gem_object_put_unlocked(&gbo->gem);
> +	drm_gem_object_put_unlocked(&gbo->bo.base);
>  
>  	args->pitch = pitch;
>  	args->size = size;
> @@ -391,7 +391,7 @@ int drm_gem_vram_fill_create_dumb(struct drm_file *file,
>  	return 0;
>  
>  err_drm_gem_object_put_unlocked:
> -	drm_gem_object_put_unlocked(&gbo->gem);
> +	drm_gem_object_put_unlocked(&gbo->bo.base);
>  	return ret;
>  }
>  EXPORT_SYMBOL(drm_gem_vram_fill_create_dumb);
> @@ -441,7 +441,7 @@ int drm_gem_vram_bo_driver_verify_access(struct ttm_buffer_object *bo,
>  {
>  	struct drm_gem_vram_object *gbo = drm_gem_vram_of_bo(bo);
>  
> -	return drm_vma_node_verify_access(&gbo->gem.vma_node,
> +	return drm_vma_node_verify_access(&gbo->bo.base.vma_node,
>  					  filp->private_data);
>  }
>  EXPORT_SYMBOL(drm_gem_vram_bo_driver_verify_access);
> @@ -635,7 +635,7 @@ int drm_gem_vram_driver_gem_prime_mmap(struct drm_gem_object *gem,
>  {
>  	struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(gem);
>  
> -	gbo->gem.vma_node.vm_node.start = gbo->bo.vma_node.vm_node.start;
> +	gbo->bo.base.vma_node.vm_node.start = gbo->bo.vma_node.vm_node.start;
>  	return drm_gem_prime_mmap(gem, vma);
>  }
>  EXPORT_SYMBOL(drm_gem_vram_driver_gem_prime_mmap);
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
> index 52fba8cb8ddd..f2a63b5f0425 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c
> @@ -65,7 +65,7 @@ int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel,
>  			DRM_ERROR("failed to allocate GEM object: %d\n", ret);
>  		return ret;
>  	}
> -	*obj = &gbo->gem;
> +	*obj = &gbo->bo.base;
>  	return 0;
>  }
>  
> diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
> index 0d7fc00e5d8a..c17440d3e6bc 100644
> --- a/drivers/gpu/drm/mgag200/mgag200_main.c
> +++ b/drivers/gpu/drm/mgag200/mgag200_main.c
> @@ -288,6 +288,6 @@ int mgag200_gem_create(struct drm_device *dev,
>  			DRM_ERROR("failed to allocate GEM object\n");
>  		return ret;
>  	}
> -	*obj = &gbo->gem;
> +	*obj = &gbo->bo.base;
>  	return 0;
>  }
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
> index 18693e2bf72a..02fa8277ff1e 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_main.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
> @@ -292,7 +292,7 @@ int vbox_gem_create(struct vbox_private *vbox,
>  		return ret;
>  	}
>  
> -	*obj = &gbo->gem;
> +	*obj = &gbo->bo.base;
>  
>  	return 0;
>  }
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Linux GmbH, Maxfeldstrasse 5, 90409 Nuernberg, Germany
GF: Felix Imendörffer, Mary Higgins, Sri Rasiah
HRB 21284 (AG Nürnberg)


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