drm/vkms: Introduce GEM object functions

GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in vkms.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Melissa Wen <melissa.srw@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200923102159.24084-20-tzimmermann@suse.de

drivers/gpu/drm/vkms/vkms_drv.c

@@ -51,12 +51,6 @@ static const struct file_operations vkms_driver_fops = {
 	.release	= drm_release,
 };
 
-static const struct vm_operations_struct vkms_gem_vm_ops = {
-	.fault = vkms_gem_fault,
-	.open = drm_gem_vm_open,
-	.close = drm_gem_vm_close,
-};
-
 static void vkms_release(struct drm_device *dev)
 {
 	struct vkms_device *vkms = container_of(dev, struct vkms_device, drm);
@@ -98,8 +92,6 @@ static struct drm_driver vkms_driver = {
 	.release		= vkms_release,
 	.fops			= &vkms_driver_fops,
 	.dumb_create		= vkms_dumb_create,
-	.gem_vm_ops		= &vkms_gem_vm_ops,
-	.gem_free_object_unlocked = vkms_gem_free_object,
 	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle,
 	.gem_prime_import_sg_table = vkms_prime_import_sg_table,
 

drivers/gpu/drm/vkms/vkms_gem.c

@@ -7,6 +7,17 @@
 
 #include "vkms_drv.h"
 
+static const struct vm_operations_struct vkms_gem_vm_ops = {
+	.fault = vkms_gem_fault,
+	.open = drm_gem_vm_open,
+	.close = drm_gem_vm_close,
+};
+
+static const struct drm_gem_object_funcs vkms_gem_object_funcs = {
+	.free = vkms_gem_free_object,
+	.vm_ops = &vkms_gem_vm_ops,
+};
+
 static struct vkms_gem_object *__vkms_gem_create(struct drm_device *dev,
 						 u64 size)
 {
@@ -17,6 +28,8 @@ static struct vkms_gem_object *__vkms_gem_create(struct drm_device *dev,
 	if (!obj)
 		return ERR_PTR(-ENOMEM);
 
+	obj->gem.funcs = &vkms_gem_object_funcs;
+
 	size = roundup(size, PAGE_SIZE);
 	ret = drm_gem_object_init(dev, &obj->gem, size);
 	if (ret) {