Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/gpu/drm/fbdevdrm/fbdevdrm_drv.c | 29 ++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/fbdevdrm/fbdevdrm_drv.c b/drivers/gpu/drm/fbdevdrm/fbdevdrm_drv.c
index 5be902094dc6..4a6ba6c85c5c 100644
--- a/drivers/gpu/drm/fbdevdrm/fbdevdrm_drv.c
+++ b/drivers/gpu/drm/fbdevdrm/fbdevdrm_drv.c
@@ -11,6 +11,8 @@
*/
#include <drm/drm_drv.h>
+#include <drm/drm_file.h>
+#include <drm/drm_ioctl.h>
#include <drm/drm_print.h>
#include <linux/console.h> /* for console_{un/lock}() */
#include <linux/fb.h>
@@ -38,6 +40,30 @@
* DRM driver
*/
+static int driver_fops_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct fbdevdrm_device *fdev = file_priv->minor->dev->dev_private;
+
+ if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
+ return -EINVAL;
+
+ return ttm_bo_mmap(filp, vma, &fdev->ttm.bdev);
+}
+
+static const struct file_operations driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = driver_fops_mmap,
+ .poll = drm_poll,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .read = drm_read
+};
+
static struct drm_driver fbdevdrm_drv = {
/* data fields */
.major = DRIVER_MAJOR,
@@ -45,7 +71,8 @@ static struct drm_driver fbdevdrm_drv = {
.patchlevel = DRIVER_PATCHLEVEL,
.name = DRIVER_NAME,
.desc = DRIVER_DESCRIPTION,
- .date = DRIVER_DATE
+ .date = DRIVER_DATE,
+ .fops = &driver_fops
};
/* Device list */
--
2.21.0
