On Thu, 13 Nov 2025 18:00:03 +0100 Loïc Molinari <[email protected]> wrote:
> drm_gem_object_init_with_mnt() and drm_gem_shmem_create_with_mnt() can > be removed now that the drivers use the new drm_gem_huge_mnt_create() > and drm_gem_has_huge_mnt() helpers. > > v5: > - use drm_gem_has_huge_mnt() helper > - compile out shmem_file_setup_with_mnt() call in builds with > CONFIG_TRANSPARENT_HUGEPAGE=n > > Signed-off-by: Loïc Molinari <[email protected]> > Reviewed-by: Boris Brezillon <[email protected]> > --- > drivers/gpu/drm/drm_gem.c | 38 ++++++++------------------ > drivers/gpu/drm/drm_gem_shmem_helper.c | 38 ++++++-------------------- > drivers/gpu/drm/v3d/v3d_bo.c | 5 ---- > include/drm/drm_gem.h | 3 -- > include/drm/drm_gem_shmem_helper.h | 3 -- > 5 files changed, 20 insertions(+), 67 deletions(-) > > diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c > index bbca2ab9e9a5..1b0b5813acef 100644 > --- a/drivers/gpu/drm/drm_gem.c > +++ b/drivers/gpu/drm/drm_gem.c > @@ -171,31 +171,33 @@ drm_gem_init(struct drm_device *dev) > } > > /** > - * drm_gem_object_init_with_mnt - initialize an allocated shmem-backed GEM > - * object in a given shmfs mountpoint > + * drm_gem_object_init - initialize an allocated shmem-backed GEM object > * > * @dev: drm_device the object should be initialized for > * @obj: drm_gem_object to initialize > * @size: object size > - * @gemfs: tmpfs mount where the GEM object will be created. If NULL, use > - * the usual tmpfs mountpoint (`shm_mnt`). > * > * Initialize an already allocated GEM object of the specified size with > - * shmfs backing store. > + * shmfs backing store. A huge mountpoint can be used by calling > + * drm_gem_huge_mnt_create() beforehand. > */ > -int drm_gem_object_init_with_mnt(struct drm_device *dev, > - struct drm_gem_object *obj, size_t size, > - struct vfsmount *gemfs) > +int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, > + size_t size) > { > struct file *filp; > > drm_gem_private_object_init(dev, obj, size); > > - if (gemfs) > - filp = shmem_file_setup_with_mnt(gemfs, "drm mm object", size, > +#ifdef CONFIG_TRANSPARENT_HUGEPAGE > + if (drm_gem_has_huge_mnt(dev)) > + filp = shmem_file_setup_with_mnt(dev->huge_mnt, > + "drm mm object", size, > VM_NORESERVE); > else > filp = shmem_file_setup("drm mm object", size, VM_NORESERVE); > +#else > + filp = shmem_file_setup("drm mm object", size, VM_NORESERVE); > +#endif I keep thinking it'd be simpler with a drm_gem_get_huge_mnt() helper: static inline struct vfsmount * drm_gem_get_huge_mnt(struct drm_device *dev) { #ifdef CONFIG_TRANSPARENT_HUGEPAGE return dev->huge_mnt; #else return NULL; #endif } so we can avoid those #ifdef CONFIG_TRANSPARENT_HUGEPAGE in a few other places. For this one that would give you something like: if (drm_gem_get_huge_mnt(dev)) filp = shmem_file_setup_with_mnt(drm_gem_get_huge_mnt(dev), "drm mm object", size, VM_NORESERVE); else filp = shmem_file_setup("drm mm object", size, VM_NORESERVE); > > if (IS_ERR(filp)) > return PTR_ERR(filp); > @@ -204,22 +206,6 @@ int drm_gem_object_init_with_mnt(struct drm_device *dev, > > return 0; > } > -EXPORT_SYMBOL(drm_gem_object_init_with_mnt); > - > -/** > - * drm_gem_object_init - initialize an allocated shmem-backed GEM object > - * @dev: drm_device the object should be initialized for > - * @obj: drm_gem_object to initialize > - * @size: object size > - * > - * Initialize an already allocated GEM object of the specified size with > - * shmfs backing store. > - */ > -int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, > - size_t size) > -{ > - return drm_gem_object_init_with_mnt(dev, obj, size, NULL); > -} > EXPORT_SYMBOL(drm_gem_object_init); > > /** > diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c > b/drivers/gpu/drm/drm_gem_shmem_helper.c > index 81f4ac7cb8f6..43a80f3fcfd9 100644 > --- a/drivers/gpu/drm/drm_gem_shmem_helper.c > +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c > @@ -50,7 +50,7 @@ static const struct drm_gem_object_funcs > drm_gem_shmem_funcs = { > }; > > static int __drm_gem_shmem_init(struct drm_device *dev, struct > drm_gem_shmem_object *shmem, > - size_t size, bool private, struct vfsmount > *gemfs) > + size_t size, bool private) > { > struct drm_gem_object *obj = &shmem->base; > int ret = 0; > @@ -62,7 +62,7 @@ static int __drm_gem_shmem_init(struct drm_device *dev, > struct drm_gem_shmem_obj > drm_gem_private_object_init(dev, obj, size); > shmem->map_wc = false; /* dma-buf mappings use always > writecombine */ > } else { > - ret = drm_gem_object_init_with_mnt(dev, obj, size, gemfs); > + ret = drm_gem_object_init(dev, obj, size); > } > if (ret) { > drm_gem_private_object_fini(obj); > @@ -103,13 +103,12 @@ static int __drm_gem_shmem_init(struct drm_device *dev, > struct drm_gem_shmem_obj > */ > int drm_gem_shmem_init(struct drm_device *dev, struct drm_gem_shmem_object > *shmem, size_t size) > { > - return __drm_gem_shmem_init(dev, shmem, size, false, NULL); > + return __drm_gem_shmem_init(dev, shmem, size, false); > } > EXPORT_SYMBOL_GPL(drm_gem_shmem_init); > > static struct drm_gem_shmem_object * > -__drm_gem_shmem_create(struct drm_device *dev, size_t size, bool private, > - struct vfsmount *gemfs) > +__drm_gem_shmem_create(struct drm_device *dev, size_t size, bool private) > { > struct drm_gem_shmem_object *shmem; > struct drm_gem_object *obj; > @@ -129,7 +128,7 @@ __drm_gem_shmem_create(struct drm_device *dev, size_t > size, bool private, > obj = &shmem->base; > } > > - ret = __drm_gem_shmem_init(dev, shmem, size, private, gemfs); > + ret = __drm_gem_shmem_init(dev, shmem, size, private); > if (ret) { > kfree(obj); > return ERR_PTR(ret); > @@ -150,31 +149,10 @@ __drm_gem_shmem_create(struct drm_device *dev, size_t > size, bool private, > */ > struct drm_gem_shmem_object *drm_gem_shmem_create(struct drm_device *dev, > size_t size) > { > - return __drm_gem_shmem_create(dev, size, false, NULL); > + return __drm_gem_shmem_create(dev, size, false); > } > EXPORT_SYMBOL_GPL(drm_gem_shmem_create); > > -/** > - * drm_gem_shmem_create_with_mnt - Allocate an object with the given size in > a > - * given mountpoint > - * @dev: DRM device > - * @size: Size of the object to allocate > - * @gemfs: tmpfs mount where the GEM object will be created > - * > - * This function creates a shmem GEM object in a given tmpfs mountpoint. > - * > - * Returns: > - * A struct drm_gem_shmem_object * on success or an ERR_PTR()-encoded > negative > - * error code on failure. > - */ > -struct drm_gem_shmem_object *drm_gem_shmem_create_with_mnt(struct drm_device > *dev, > - size_t size, > - struct vfsmount > *gemfs) > -{ > - return __drm_gem_shmem_create(dev, size, false, gemfs); > -} > -EXPORT_SYMBOL_GPL(drm_gem_shmem_create_with_mnt); > - > /** > * drm_gem_shmem_release - Release resources associated with a shmem GEM > object. > * @shmem: shmem GEM object > @@ -861,7 +839,7 @@ drm_gem_shmem_prime_import_sg_table(struct drm_device > *dev, > size_t size = PAGE_ALIGN(attach->dmabuf->size); > struct drm_gem_shmem_object *shmem; > > - shmem = __drm_gem_shmem_create(dev, size, true, NULL); > + shmem = __drm_gem_shmem_create(dev, size, true); > if (IS_ERR(shmem)) > return ERR_CAST(shmem); > > @@ -909,7 +887,7 @@ struct drm_gem_object > *drm_gem_shmem_prime_import_no_map(struct drm_device *dev, > > size = PAGE_ALIGN(attach->dmabuf->size); > > - shmem = __drm_gem_shmem_create(dev, size, true, NULL); > + shmem = __drm_gem_shmem_create(dev, size, true); > if (IS_ERR(shmem)) { > ret = PTR_ERR(shmem); > goto fail_detach; > diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c > index 3bc714ea6392..d3b68ee05dbb 100644 > --- a/drivers/gpu/drm/v3d/v3d_bo.c > +++ b/drivers/gpu/drm/v3d/v3d_bo.c > @@ -153,12 +153,7 @@ struct v3d_bo *v3d_bo_create(struct drm_device *dev, > struct drm_file *file_priv, > struct v3d_bo *bo; > int ret; > > -#ifdef CONFIG_TRANSPARENT_HUGEPAGE > - shmem_obj = drm_gem_shmem_create_with_mnt(dev, unaligned_size, > - dev->huge_mnt); > -#else > shmem_obj = drm_gem_shmem_create(dev, unaligned_size); > -#endif > if (IS_ERR(shmem_obj)) > return ERR_CAST(shmem_obj); > bo = to_v3d_bo(&shmem_obj->base); > diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h > index 58fa1e6b9773..75276a12208e 100644 > --- a/include/drm/drm_gem.h > +++ b/include/drm/drm_gem.h > @@ -529,9 +529,6 @@ void drm_gem_object_release(struct drm_gem_object *obj); > void drm_gem_object_free(struct kref *kref); > int drm_gem_object_init(struct drm_device *dev, > struct drm_gem_object *obj, size_t size); > -int drm_gem_object_init_with_mnt(struct drm_device *dev, > - struct drm_gem_object *obj, size_t size, > - struct vfsmount *gemfs); > void drm_gem_private_object_init(struct drm_device *dev, > struct drm_gem_object *obj, size_t size); > void drm_gem_private_object_fini(struct drm_gem_object *obj); > diff --git a/include/drm/drm_gem_shmem_helper.h > b/include/drm/drm_gem_shmem_helper.h > index 589f7bfe7506..6b6478f5ca24 100644 > --- a/include/drm/drm_gem_shmem_helper.h > +++ b/include/drm/drm_gem_shmem_helper.h > @@ -109,9 +109,6 @@ struct drm_gem_shmem_object { > > int drm_gem_shmem_init(struct drm_device *dev, struct drm_gem_shmem_object > *shmem, size_t size); > struct drm_gem_shmem_object *drm_gem_shmem_create(struct drm_device *dev, > size_t size); > -struct drm_gem_shmem_object *drm_gem_shmem_create_with_mnt(struct drm_device > *dev, > - size_t size, > - struct vfsmount > *gemfs); > void drm_gem_shmem_release(struct drm_gem_shmem_object *shmem); > void drm_gem_shmem_free(struct drm_gem_shmem_object *shmem); >
