Signed-off-by: Thomas Zimmermann tzimmermann@suse.de --- 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 */