[PATCH v2 16/21] drm/vgem: Introduce GEM object functions

Thomas Zimmermann
2020-09-15T23:01:19Z

GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in vgem. The only exception is gem_prime_mmap,
which is non-trivial to convert.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/vgem/vgem_drv.c | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c
index cb884c890065..fa54a6d1403d 100644
--- a/drivers/gpu/drm/vgem/vgem_drv.c
+++ b/drivers/gpu/drm/vgem/vgem_drv.c
@@ -50,6 +50,8 @@
#define DRIVER_MAJOR 1
#define DRIVER_MINOR 0

+static const struct drm_gem_object_funcs vgem_gem_object_funcs;
+
static struct vgem_device {
struct drm_device drm;
struct platform_device *platform;
@@ -167,6 +169,8 @@ static struct drm_vgem_gem_object *__vgem_gem_create(struct drm_device *dev,
if (!obj)
return ERR_PTR(-ENOMEM);

+ obj->base.funcs = &vgem_gem_object_funcs;
+
ret = drm_gem_object_init(dev, &obj->base, roundup(size, PAGE_SIZE));
if (ret) {
kfree(obj);
@@ -401,12 +405,20 @@ static int vgem_prime_mmap(struct drm_gem_object *obj,
return 0;
}

+static const struct drm_gem_object_funcs vgem_gem_object_funcs = {
+ .free = vgem_gem_free_object,
+ .pin = vgem_prime_pin,
+ .unpin = vgem_prime_unpin,
+ .get_sg_table = vgem_prime_get_sg_table,
+ .vmap = vgem_prime_vmap,
+ .vunmap = vgem_prime_vunmap,
+ .vm_ops = &vgem_gem_vm_ops,
+};
+
static struct drm_driver vgem_driver = {
.driver_features = DRIVER_GEM | DRIVER_RENDER,
.open = vgem_open,
.postclose = vgem_postclose,
- .gem_free_object_unlocked = vgem_gem_free_object,
- .gem_vm_ops = &vgem_gem_vm_ops,
.ioctls = vgem_ioctls,
.num_ioctls = ARRAY_SIZE(vgem_ioctls),
.fops = &vgem_driver_fops,
@@ -415,13 +427,8 @@ static struct drm_driver vgem_driver = {

.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_pin = vgem_prime_pin,
- .gem_prime_unpin = vgem_prime_unpin,
.gem_prime_import = vgem_prime_import,
.gem_prime_import_sg_table = vgem_prime_import_sg_table,
- .gem_prime_get_sg_table = vgem_prime_get_sg_table,
- .gem_prime_vmap = vgem_prime_vmap,
- .gem_prime_vunmap = vgem_prime_vunmap,
.gem_prime_mmap = vgem_prime_mmap,

.name = DRIVER_NAME,
--
2.28.0