Re: [PATCH v2 07/21] drm/mediatek: Introduce GEM object functions

Daniel Vetter
2020-09-16T21:01:28Z

On Tue, Sep 15, 2020 at 04:59:44PM +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 mediatek. The only exception is gem_prime_mmap,
> which is non-trivial to convert.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
> ---
> drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 -----
> drivers/gpu/drm/mediatek/mtk_drm_gem.c | 11 +++++++++++
> 2 files changed, 11 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index 040a8f393fe2..2f8d0043fca7 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -301,18 +301,13 @@ struct drm_gem_object *mtk_drm_gem_prime_import(struct drm_device *dev,
> static struct drm_driver mtk_drm_driver = {
> .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
>
> - .gem_free_object_unlocked = mtk_drm_gem_free_object,
> - .gem_vm_ops = &drm_gem_cma_vm_ops,
> .dumb_create = mtk_drm_gem_dumb_create,
>
> .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
> .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> .gem_prime_import = mtk_drm_gem_prime_import,
> - .gem_prime_get_sg_table = mtk_gem_prime_get_sg_table,
> .gem_prime_import_sg_table = mtk_gem_prime_import_sg_table,
> .gem_prime_mmap = mtk_drm_gem_mmap_buf,
> - .gem_prime_vmap = mtk_drm_gem_prime_vmap,
> - .gem_prime_vunmap = mtk_drm_gem_prime_vunmap,
> .fops = &mtk_drm_fops,
>
> .name = DRIVER_NAME,
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> index 6190cc3b7b0d..591b90410e4a 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
> @@ -8,11 +8,20 @@
> #include <drm/drm.h>
> #include <drm/drm_device.h>
> #include <drm/drm_gem.h>
> +#include <drm/drm_gem_cma_helper.h>
> #include <drm/drm_prime.h>
>
> #include "mtk_drm_drv.h"
> #include "mtk_drm_gem.h"
>
> +static const struct drm_gem_object_funcs mtk_drm_gem_object_funcs = {
> + .free = mtk_drm_gem_free_object,
> + .get_sg_table = mtk_gem_prime_get_sg_table,
> + .vmap = mtk_drm_gem_prime_vmap,
> + .vunmap = mtk_drm_gem_prime_vunmap,
> + .vm_ops = &drm_gem_cma_vm_ops,
> +};
> +
> static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev,
> unsigned long size)
> {
> @@ -25,6 +34,8 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev,
> if (!mtk_gem_obj)
> return ERR_PTR(-ENOMEM);
>
> + mtk_gem_obj->base.funcs = &mtk_drm_gem_object_funcs;
> +
> ret = drm_gem_object_init(dev, &mtk_gem_obj->base, size);
> if (ret < 0) {
> DRM_ERROR("failed to initialize gem object\n");
> --
> 2.28.0

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

>

--
Daniel Vetter
Software Engineer, Intel Corporation