[Nouveau] [PATCH 11/20] drm/pl111: Introduce GEM object functions

[Thomas Zimmermann]

GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in pl111. The only exception is gem_prime_mmap,
which is non-trivial to convert.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/gpu/drm/pl111/pl111_drv.c | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c
index 46b0d1c4a16c..00b605060336 100644
--- a/drivers/gpu/drm/pl111/pl111_drv.c
+++ b/drivers/gpu/drm/pl111/pl111_drv.c
@@ -211,6 +211,29 @@ pl111_gem_import_sg_table(struct drm_device *dev,
 	return drm_gem_cma_prime_import_sg_table(dev, attach, sgt);
 }
 
+static const struct drm_gem_object_funcs pl111_gem_object_funcs = {
+	.free = drm_gem_cma_free_object,
+	.get_sg_table = drm_gem_cma_prime_get_sg_table,
+	.vmap = drm_gem_cma_prime_vmap,
+	.vm_ops = &drm_gem_cma_vm_ops,
+};
+
+static struct drm_gem_object *
+pl111_gem_create_object(struct drm_device *dev, size_t size)
+{
+	static struct drm_gem_cma_object *cma_obj;
+	struct drm_gem_object *obj;
+
+	cma_obj = kzalloc(sizeof(*cma_obj), GFP_KERNEL);
+	if (!cma_obj)
+		return NULL;
+
+	obj = &cma_obj->base;
+	obj->funcs = &pl111_gem_object_funcs;
+
+	return obj;
+}
+
 DEFINE_DRM_GEM_CMA_FOPS(drm_fops);
 
 static struct drm_driver pl111_drm_driver = {
@@ -224,15 +247,12 @@ static struct drm_driver pl111_drm_driver = {
 	.major = 1,
 	.minor = 0,
 	.patchlevel = 0,
+	.gem_create_object = pl111_gem_create_object,
 	.dumb_create = drm_gem_cma_dumb_create,
-	.gem_free_object_unlocked = drm_gem_cma_free_object,
-	.gem_vm_ops = &drm_gem_cma_vm_ops,
 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_import_sg_table = pl111_gem_import_sg_table,
-	.gem_prime_get_sg_table	= drm_gem_cma_prime_get_sg_table,
 	.gem_prime_mmap = drm_gem_cma_prime_mmap,
-	.gem_prime_vmap = drm_gem_cma_prime_vmap,
 
 #if defined(CONFIG_DEBUG_FS)
 	.debugfs_init = pl111_debugfs_init,
-- 
2.28.0