[PATCH v2 07/21] drm/mediatek: Introduce GEM object functions

Thomas Zimmermann
2020-09-15T15:02:32Z

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

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 -----
drivers/gpu/drm/mediatek/mtk_drm_gem.c | 11 +++++++++++
2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 040a8f393fe2..2f8d0043fca7 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -301,18 +301,13 @@ struct drm_gem_object *mtk_drm_gem_prime_import(struct drm_device *dev,
static struct drm_driver mtk_drm_driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,

- .gem_free_object_unlocked = mtk_drm_gem_free_object,
- .gem_vm_ops = &drm_gem_cma_vm_ops,
.dumb_create = mtk_drm_gem_dumb_create,

.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_import = mtk_drm_gem_prime_import,
- .gem_prime_get_sg_table = mtk_gem_prime_get_sg_table,
.gem_prime_import_sg_table = mtk_gem_prime_import_sg_table,
.gem_prime_mmap = mtk_drm_gem_mmap_buf,
- .gem_prime_vmap = mtk_drm_gem_prime_vmap,
- .gem_prime_vunmap = mtk_drm_gem_prime_vunmap,
.fops = &mtk_drm_fops,

.name = DRIVER_NAME,
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
index 6190cc3b7b0d..591b90410e4a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
@@ -8,11 +8,20 @@
#include <drm/drm.h>
#include <drm/drm_device.h>
#include <drm/drm_gem.h>
+#include <drm/drm_gem_cma_helper.h>
#include <drm/drm_prime.h>

#include "mtk_drm_drv.h"
#include "mtk_drm_gem.h"

+static const struct drm_gem_object_funcs mtk_drm_gem_object_funcs = {
+ .free = mtk_drm_gem_free_object,
+ .get_sg_table = mtk_gem_prime_get_sg_table,
+ .vmap = mtk_drm_gem_prime_vmap,
+ .vunmap = mtk_drm_gem_prime_vunmap,
+ .vm_ops = &drm_gem_cma_vm_ops,
+};
+
static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev,
unsigned long size)
{
@@ -25,6 +34,8 @@ static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev,
if (!mtk_gem_obj)
return ERR_PTR(-ENOMEM);

+ mtk_gem_obj->base.funcs = &mtk_drm_gem_object_funcs;
+
ret = drm_gem_object_init(dev, &mtk_gem_obj->base, size);
if (ret < 0) {
DRM_ERROR("failed to initialize gem object\n");
--
2.28.0