drm/exynos: remove buffer creation of fbdev from drm framebuffer creation
The fbdev fb and the user fb is created from same function -
exynos_drm_fb_create, but this function creates not only drm framebuffer
but buffer of fbdev. Remove it because it complicates codes and use
exynos_drm_gem_create() than exynos_drm_buf_create() to create buffer of
fbdev, it give better consistency of codes and more clear
implementation.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c
index 5231759..8f36ae5 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -43,14 +43,10 @@
*
* @fb: drm framebuffer obejct.
* @exynos_gem_obj: exynos specific gem object containing a gem object.
- * @buffer: pointer to exynos_drm_gem_buffer object.
- * - contain the memory information to memory region allocated
- * at default framebuffer creation.
*/
struct exynos_drm_fb {
struct drm_framebuffer fb;
struct exynos_drm_gem_obj *exynos_gem_obj;
- struct exynos_drm_gem_buf *buffer;
};
static void exynos_drm_fb_destroy(struct drm_framebuffer *fb)
@@ -61,13 +57,6 @@
drm_framebuffer_cleanup(fb);
- /*
- * default framebuffer has no gem object so
- * a buffer of the default framebuffer should be released at here.
- */
- if (!exynos_fb->exynos_gem_obj && exynos_fb->buffer)
- exynos_drm_buf_destroy(fb->dev, exynos_fb->buffer);
-
kfree(exynos_fb);
exynos_fb = NULL;
}
@@ -102,120 +91,49 @@
.dirty = exynos_drm_fb_dirty,
};
-static struct drm_framebuffer *
-exynos_drm_fb_init(struct drm_file *file_priv, struct drm_device *dev,
- struct drm_mode_fb_cmd2 *mode_cmd)
+struct drm_framebuffer *
+exynos_drm_framebuffer_init(struct drm_device *dev,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj)
{
struct exynos_drm_fb *exynos_fb;
- struct drm_framebuffer *fb;
- struct exynos_drm_gem_obj *exynos_gem_obj = NULL;
- struct drm_gem_object *obj;
- unsigned int size;
int ret;
- DRM_DEBUG_KMS("%s\n", __FILE__);
-
- DRM_LOG_KMS("drm fb create(%dx%d)\n",
- mode_cmd->width, mode_cmd->height);
-
exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL);
if (!exynos_fb) {
- DRM_ERROR("failed to allocate exynos drm framebuffer.\n");
+ DRM_ERROR("failed to allocate exynos drm framebuffer\n");
return ERR_PTR(-ENOMEM);
}
- fb = &exynos_fb->fb;
- ret = drm_framebuffer_init(dev, fb, &exynos_drm_fb_funcs);
+ ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs);
if (ret) {
- DRM_ERROR("failed to initialize framebuffer.\n");
- goto err_init;
+ DRM_ERROR("failed to initialize framebuffer\n");
+ return ERR_PTR(ret);
}
- DRM_LOG_KMS("create: fb id: %d\n", fb->base.id);
+ drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd);
+ exynos_fb->exynos_gem_obj = to_exynos_gem_obj(obj);
- size = mode_cmd->pitches[0] * mode_cmd->height;
-
- /*
- * mode_cmd->handles[0] could be NULL at booting time or
- * with user request. if NULL, a new buffer or a gem object
- * would be allocated.
- */
- if (!mode_cmd->handles[0]) {
- if (!file_priv) {
- struct exynos_drm_gem_buf *buffer;
-
- /*
- * in case that file_priv is NULL, it allocates
- * only buffer and this buffer would be used
- * for default framebuffer.
- */
- buffer = exynos_drm_buf_create(dev, size);
- if (!buffer) {
- ret = -ENOMEM;
- goto err_buffer;
- }
-
- exynos_fb->buffer = buffer;
-
- DRM_LOG_KMS("default: dma_addr = 0x%lx, size = 0x%x\n",
- (unsigned long)buffer->dma_addr, size);
-
- goto out;
- } else {
- exynos_gem_obj = exynos_drm_gem_create(dev, size);
- if (IS_ERR(exynos_gem_obj)) {
- ret = PTR_ERR(exynos_gem_obj);
- goto err_buffer;
- }
- }
- } else {
- obj = drm_gem_object_lookup(dev, file_priv,
- mode_cmd->handles[0]);
- if (!obj) {
- DRM_ERROR("failed to lookup gem object.\n");
- goto err_buffer;
- }
-
- exynos_gem_obj = to_exynos_gem_obj(obj);
-
- drm_gem_object_unreference_unlocked(obj);
- }
-
- /*
- * if got a exynos_gem_obj from either a handle or
- * a new creation then exynos_fb->exynos_gem_obj is NULL
- * so that default framebuffer has no its own gem object,
- * only its own buffer object.
- */
- exynos_fb->buffer = exynos_gem_obj->buffer;
-
- DRM_LOG_KMS("dma_addr = 0x%lx, size = 0x%x, gem object = 0x%x\n",
- (unsigned long)exynos_fb->buffer->dma_addr, size,
- (unsigned int)&exynos_gem_obj->base);
-
-out:
- exynos_fb->exynos_gem_obj = exynos_gem_obj;
-
- drm_helper_mode_fill_fb_struct(fb, mode_cmd);
-
- return fb;
-
-err_buffer:
- drm_framebuffer_cleanup(fb);
-
-err_init:
- kfree(exynos_fb);
-
- return ERR_PTR(ret);
+ return &exynos_fb->fb;
}
-struct drm_framebuffer *exynos_drm_fb_create(struct drm_device *dev,
- struct drm_file *file_priv,
- struct drm_mode_fb_cmd2 *mode_cmd)
+static struct drm_framebuffer *
+exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
+ struct drm_mode_fb_cmd2 *mode_cmd)
{
+ struct drm_gem_object *obj;
+
DRM_DEBUG_KMS("%s\n", __FILE__);
- return exynos_drm_fb_init(file_priv, dev, mode_cmd);
+ obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
+ if (!obj) {
+ DRM_ERROR("failed to lookup gem object\n");
+ return ERR_PTR(-ENOENT);
+ }
+
+ drm_gem_object_unreference_unlocked(obj);
+
+ return exynos_drm_framebuffer_init(dev, mode_cmd, obj);
}
struct exynos_drm_gem_buf *exynos_drm_fb_get_buf(struct drm_framebuffer *fb)
@@ -225,7 +143,7 @@
DRM_DEBUG_KMS("%s\n", __FILE__);
- buffer = exynos_fb->buffer;
+ buffer = exynos_fb->exynos_gem_obj->buffer;
if (!buffer)
return NULL;
@@ -246,7 +164,7 @@
}
static struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
- .fb_create = exynos_drm_fb_create,
+ .fb_create = exynos_user_fb_create,
.output_poll_changed = exynos_drm_output_poll_changed,
};
