Re: [PATCH v3 03/22] drm/etnaviv: Introduce GEM object functions

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On Mi, 2020-09-23 at 12:21 +0200, Thomas Zimmermann wrote:
> GEM object functions deprecate several similar callback interfaces in
> struct drm_driver. This patch replaces the per-driver callbacks with
> per-instance callbacks in etnaviv. The only exception is gem_prime_mmap,
> which is non-trivial to convert.
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

Acked-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/etnaviv/etnaviv_drv.c | 13 -------------
>  drivers/gpu/drm/etnaviv/etnaviv_drv.h |  1 -
>  drivers/gpu/drm/etnaviv/etnaviv_gem.c | 19 ++++++++++++++++++-
>  3 files changed, 18 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> index a9a3afaef9a1..aa270b79e585 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> @@ -468,12 +468,6 @@ static const struct drm_ioctl_desc etnaviv_ioctls[] = {
>  	ETNA_IOCTL(PM_QUERY_SIG, pm_query_sig, DRM_RENDER_ALLOW),
>  };
>  
> -static const struct vm_operations_struct vm_ops = {
> -	.fault = etnaviv_gem_fault,
> -	.open = drm_gem_vm_open,
> -	.close = drm_gem_vm_close,
> -};
> -
>  static const struct file_operations fops = {
>  	.owner              = THIS_MODULE,
>  	.open               = drm_open,
> @@ -490,16 +484,9 @@ static struct drm_driver etnaviv_drm_driver = {
>  	.driver_features    = DRIVER_GEM | DRIVER_RENDER,
>  	.open               = etnaviv_open,
>  	.postclose           = etnaviv_postclose,
> -	.gem_free_object_unlocked = etnaviv_gem_free_object,
> -	.gem_vm_ops         = &vm_ops,
>  	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
>  	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> -	.gem_prime_pin      = etnaviv_gem_prime_pin,
> -	.gem_prime_unpin    = etnaviv_gem_prime_unpin,
> -	.gem_prime_get_sg_table = etnaviv_gem_prime_get_sg_table,
>  	.gem_prime_import_sg_table = etnaviv_gem_prime_import_sg_table,
> -	.gem_prime_vmap     = etnaviv_gem_prime_vmap,
> -	.gem_prime_vunmap   = etnaviv_gem_prime_vunmap,
>  	.gem_prime_mmap     = etnaviv_gem_prime_mmap,
>  #ifdef CONFIG_DEBUG_FS
>  	.debugfs_init       = etnaviv_debugfs_init,
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> index 4d8dc9236e5f..914f0867ff71 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> @@ -49,7 +49,6 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
>  		struct drm_file *file);
>  
>  int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma);
> -vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf);
>  int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
>  struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
>  void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> index d1533bdc1335..67d9a2b9ea6a 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
> @@ -171,7 +171,7 @@ int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma)
>  	return obj->ops->mmap(obj, vma);
>  }
>  
> -vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf)
> +static vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf)
>  {
>  	struct vm_area_struct *vma = vmf->vma;
>  	struct drm_gem_object *obj = vma->vm_private_data;
> @@ -559,6 +559,22 @@ void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj)
>  	mutex_unlock(&priv->gem_lock);
>  }
>  
> +static const struct vm_operations_struct vm_ops = {
> +	.fault = etnaviv_gem_fault,
> +	.open = drm_gem_vm_open,
> +	.close = drm_gem_vm_close,
> +};
> +
> +static const struct drm_gem_object_funcs etnaviv_gem_object_funcs = {
> +	.free = etnaviv_gem_free_object,
> +	.pin = etnaviv_gem_prime_pin,
> +	.unpin = etnaviv_gem_prime_unpin,
> +	.get_sg_table = etnaviv_gem_prime_get_sg_table,
> +	.vmap = etnaviv_gem_prime_vmap,
> +	.vunmap = etnaviv_gem_prime_vunmap,
> +	.vm_ops = &vm_ops,
> +};
> +
>  static int etnaviv_gem_new_impl(struct drm_device *dev, u32 size, u32 flags,
>  	const struct etnaviv_gem_ops *ops, struct drm_gem_object **obj)
>  {
> @@ -593,6 +609,7 @@ static int etnaviv_gem_new_impl(struct drm_device *dev, u32 size, u32 flags,
>  	INIT_LIST_HEAD(&etnaviv_obj->vram_list);
>  
>  	*obj = &etnaviv_obj->base;
> +	(*obj)->funcs = &etnaviv_gem_object_funcs;
>  
>  	return 0;
>  }

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