drm/mgag200: Add init and fini functions for cursor handling

Moving the cursor initialization and cleanup into separate functions
makes the overall code slightly more readable.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190927091301.10574-3-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/mgag200/mgag200_cursor.c b/drivers/gpu/drm/mgag200/mgag200_cursor.c
index 3df70d8..d39e2bc 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_cursor.c
+++ b/drivers/gpu/drm/mgag200/mgag200_cursor.c
@@ -25,6 +25,34 @@ static void mgag200_hide_cursor(struct mga_device *mdev)
        mdev->cursor.pixels_current = NULL;
 }
 
+int mgag200_cursor_init(struct mga_device *mdev)
+{
+       struct drm_device *dev = mdev->dev;
+
+       /*
+        * Make small buffers to store a hardware cursor (double
+        * buffered icon updates)
+        */
+       mdev->cursor.pixels_1 = drm_gem_vram_create(dev, &dev->vram_mm->bdev,
+                                                   roundup(48*64, PAGE_SIZE),
+                                                   0, 0);
+       mdev->cursor.pixels_2 = drm_gem_vram_create(dev, &dev->vram_mm->bdev,
+                                                   roundup(48*64, PAGE_SIZE),
+                                                   0, 0);
+       if (IS_ERR(mdev->cursor.pixels_2) || IS_ERR(mdev->cursor.pixels_1)) {
+               mdev->cursor.pixels_1 = NULL;
+               mdev->cursor.pixels_2 = NULL;
+               dev_warn(&dev->pdev->dev,
+                       "Could not allocate space for cursors. Not doing hardware cursors.\n");
+       }
+       mdev->cursor.pixels_current = NULL;
+
+       return 0;
+}
+
+void mgag200_cursor_fini(struct mga_device *mdev)
+{ }
+
 int mgag200_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
                            uint32_t handle, uint32_t width, uint32_t height)
 {

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index 5244e3f..01243fa 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -203,6 +203,8 @@ int mgag200_mm_init(struct mga_device *mdev);
 void mgag200_mm_fini(struct mga_device *mdev);
 int mgag200_mmap(struct file *filp, struct vm_area_struct *vma);
 
+int mgag200_cursor_init(struct mga_device *mdev);
+void mgag200_cursor_fini(struct mga_device *mdev);
 int mgag200_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
                            uint32_t handle, uint32_t width, uint32_t height);
 int mgag200_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);

diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index a977333..2b59280 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -171,20 +171,10 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
                goto err_modeset;
        }
 
-       /* Make small buffers to store a hardware cursor (double buffered icon updates) */
-       mdev->cursor.pixels_1 = drm_gem_vram_create(dev, &dev->vram_mm->bdev,
-                                                   roundup(48*64, PAGE_SIZE),
-                                                   0, 0);
-       mdev->cursor.pixels_2 = drm_gem_vram_create(dev, &dev->vram_mm->bdev,
-                                                   roundup(48*64, PAGE_SIZE),
-                                                   0, 0);
-       if (IS_ERR(mdev->cursor.pixels_2) || IS_ERR(mdev->cursor.pixels_1)) {
-               mdev->cursor.pixels_1 = NULL;
-               mdev->cursor.pixels_2 = NULL;
+       r = mgag200_cursor_init(mdev);
+       if (r)
                dev_warn(&dev->pdev->dev,
-                       "Could not allocate space for cursors. Not doing hardware cursors.\n");
-       }
-       mdev->cursor.pixels_current = NULL;
+                       "Could not initialize cursors. Not doing hardware cursors.\n");
 
        r = drm_fbdev_generic_setup(mdev->dev, 0);
        if (r)
@@ -194,6 +184,7 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
 
 err_modeset:
        drm_mode_config_cleanup(dev);
+       mgag200_cursor_fini(mdev);
        mgag200_mm_fini(mdev);
 err_mm:
        dev->dev_private = NULL;
@@ -209,6 +200,7 @@ void mgag200_driver_unload(struct drm_device *dev)
                return;
        mgag200_modeset_fini(mdev);
        drm_mode_config_cleanup(dev);
+       mgag200_cursor_fini(mdev);
        mgag200_mm_fini(mdev);
        dev->dev_private = NULL;
 }