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| author | Maíra Canal <mcanal@igalia.com> | 2024-09-23 10:55:10 -0300 |
|---|---|---|
| committer | Maíra Canal <mcanal@igalia.com> | 2024-09-25 08:40:22 -0300 |
| commit | be431dfec976e553a08883e26d0d0cc2598a8dfa (patch) | |
| tree | de41ddc1654260290b563e9f08b75dda0f89b35f | |
| parent | eb8d395f68421449c6201d3019f51011d034f00e (diff) | |
| download | lwn-be431dfec976e553a08883e26d0d0cc2598a8dfa.tar.gz lwn-be431dfec976e553a08883e26d0d0cc2598a8dfa.zip | |
drm/gem: Create shmem GEM object in a given mountpoint
Create a function `drm_gem_shmem_create_with_mnt()`, similar to
`drm_gem_shmem_create()`, that has a mountpoint as a argument. This
function will create a shmem GEM object in a given tmpfs mountpoint.
This function will be useful for drivers that have a special mountpoint
with flags enabled.
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240923141348.2422499-7-mcanal@igalia.com
| -rw-r--r-- | drivers/gpu/drm/drm_gem_shmem_helper.c | 30 | ||||
| -rw-r--r-- | include/drm/drm_gem_shmem_helper.h | 3 |
2 files changed, 29 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index 53c003983ad1..8508060a1a95 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -49,7 +49,8 @@ static const struct drm_gem_object_funcs drm_gem_shmem_funcs = { }; static struct drm_gem_shmem_object * -__drm_gem_shmem_create(struct drm_device *dev, size_t size, bool private) +__drm_gem_shmem_create(struct drm_device *dev, size_t size, bool private, + struct vfsmount *gemfs) { struct drm_gem_shmem_object *shmem; struct drm_gem_object *obj; @@ -76,7 +77,7 @@ __drm_gem_shmem_create(struct drm_device *dev, size_t size, bool private) drm_gem_private_object_init(dev, obj, size); shmem->map_wc = false; /* dma-buf mappings use always writecombine */ } else { - ret = drm_gem_object_init(dev, obj, size); + ret = drm_gem_object_init_with_mnt(dev, obj, size, gemfs); } if (ret) { drm_gem_private_object_fini(obj); @@ -123,11 +124,32 @@ err_free: */ struct drm_gem_shmem_object *drm_gem_shmem_create(struct drm_device *dev, size_t size) { - return __drm_gem_shmem_create(dev, size, false); + return __drm_gem_shmem_create(dev, size, false, NULL); } 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_free - Free resources associated with a shmem GEM object * @shmem: shmem GEM object to free * @@ -765,7 +787,7 @@ 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); + shmem = __drm_gem_shmem_create(dev, size, true, NULL); if (IS_ERR(shmem)) return ERR_CAST(shmem); diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h index efbc9f27312b..d22e3fb53631 100644 --- a/include/drm/drm_gem_shmem_helper.h +++ b/include/drm/drm_gem_shmem_helper.h @@ -97,6 +97,9 @@ struct drm_gem_shmem_object { container_of(obj, struct drm_gem_shmem_object, base) 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_free(struct drm_gem_shmem_object *shmem); void drm_gem_shmem_put_pages(struct drm_gem_shmem_object *shmem); |