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authorDave Airlie <airlied@redhat.com>2019-04-05 05:17:15 +0200
committerDave Airlie <airlied@redhat.com>2019-04-24 05:48:45 +0200
commit6ecac85eadb9d4065b9038fa3d3c66d49038e14b (patch)
tree5c01e3067ff528287d512b860ad99ede84e05ad5 /drivers/gpu/drm/udl
parentdrm/udl: introduce a macro to convert dev to udl. (diff)
downloadlinux-6ecac85eadb9d4065b9038fa3d3c66d49038e14b.tar.xz
linux-6ecac85eadb9d4065b9038fa3d3c66d49038e14b.zip
drm/udl: move to embedding drm device inside udl device.
This should help with some of the lifetime issues, and move us away from load/unload. Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190405031715.5959-4-airlied@gmail.com
Diffstat (limited to 'drivers/gpu/drm/udl')
-rw-r--r--drivers/gpu/drm/udl/udl_drv.c56
-rw-r--r--drivers/gpu/drm/udl/udl_drv.h9
-rw-r--r--drivers/gpu/drm/udl/udl_fb.c2
-rw-r--r--drivers/gpu/drm/udl/udl_main.c23
4 files changed, 53 insertions, 37 deletions
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c
index b7d01b3664cb..312bf324841a 100644
--- a/drivers/gpu/drm/udl/udl_drv.c
+++ b/drivers/gpu/drm/udl/udl_drv.c
@@ -48,10 +48,16 @@ static const struct file_operations udl_driver_fops = {
.llseek = noop_llseek,
};
+static void udl_driver_release(struct drm_device *dev)
+{
+ udl_fini(dev);
+ udl_modeset_cleanup(dev);
+ drm_dev_fini(dev);
+ kfree(dev);
+}
+
static struct drm_driver driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
- .load = udl_driver_load,
- .unload = udl_driver_unload,
.release = udl_driver_release,
/* gem hooks */
@@ -75,28 +81,56 @@ static struct drm_driver driver = {
.patchlevel = DRIVER_PATCHLEVEL,
};
+static struct udl_device *udl_driver_create(struct usb_interface *interface)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct udl_device *udl;
+ int r;
+
+ udl = kzalloc(sizeof(*udl), GFP_KERNEL);
+ if (!udl)
+ return ERR_PTR(-ENOMEM);
+
+ r = drm_dev_init(&udl->drm, &driver, &interface->dev);
+ if (r) {
+ kfree(udl);
+ return ERR_PTR(r);
+ }
+
+ udl->udev = udev;
+ udl->drm.dev_private = udl;
+
+ r = udl_init(udl);
+ if (r) {
+ drm_dev_fini(&udl->drm);
+ kfree(udl);
+ return ERR_PTR(r);
+ }
+
+ usb_set_intfdata(interface, udl);
+ return udl;
+}
+
static int udl_usb_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
- struct usb_device *udev = interface_to_usbdev(interface);
- struct drm_device *dev;
int r;
+ struct udl_device *udl;
- dev = drm_dev_alloc(&driver, &interface->dev);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
+ udl = udl_driver_create(interface);
+ if (IS_ERR(udl))
+ return PTR_ERR(udl);
- r = drm_dev_register(dev, (unsigned long)udev);
+ r = drm_dev_register(&udl->drm, 0);
if (r)
goto err_free;
- usb_set_intfdata(interface, dev);
- DRM_INFO("Initialized udl on minor %d\n", dev->primary->index);
+ DRM_INFO("Initialized udl on minor %d\n", udl->drm.primary->index);
return 0;
err_free:
- drm_dev_put(dev);
+ drm_dev_put(&udl->drm);
return r;
}
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h
index b3e08e876d62..35c1f33fbc1a 100644
--- a/drivers/gpu/drm/udl/udl_drv.h
+++ b/drivers/gpu/drm/udl/udl_drv.h
@@ -50,8 +50,8 @@ struct urb_list {
struct udl_fbdev;
struct udl_device {
+ struct drm_device drm;
struct device *dev;
- struct drm_device *ddev;
struct usb_device *udev;
struct drm_crtc *crtc;
@@ -71,7 +71,7 @@ struct udl_device {
atomic_t cpu_kcycles_used; /* transpired during pixel processing */
};
-#define to_udl(x) ((x)->dev_private)
+#define to_udl(x) container_of(x, struct udl_device, drm)
struct udl_gem_object {
struct drm_gem_object base;
@@ -104,9 +104,8 @@ struct urb *udl_get_urb(struct drm_device *dev);
int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len);
void udl_urb_completion(struct urb *urb);
-int udl_driver_load(struct drm_device *dev, unsigned long flags);
-void udl_driver_unload(struct drm_device *dev);
-void udl_driver_release(struct drm_device *dev);
+int udl_init(struct udl_device *udl);
+void udl_fini(struct drm_device *dev);
int udl_fbdev_init(struct drm_device *dev);
void udl_fbdev_cleanup(struct drm_device *dev);
diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index 16593d4f02b4..b9b67a546d4c 100644
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -213,7 +213,7 @@ static int udl_fb_open(struct fb_info *info, int user)
struct udl_device *udl = to_udl(dev);
/* If the USB device is gone, we don't accept new opens */
- if (drm_dev_is_unplugged(udl->ddev))
+ if (drm_dev_is_unplugged(&udl->drm))
return -ENODEV;
ufbdev->fb_count++;
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
index 862c099d7c4c..6743eaef4594 100644
--- a/drivers/gpu/drm/udl/udl_main.c
+++ b/drivers/gpu/drm/udl/udl_main.c
@@ -311,20 +311,12 @@ int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len)
return ret;
}
-int udl_driver_load(struct drm_device *dev, unsigned long flags)
+int udl_init(struct udl_device *udl)
{
- struct usb_device *udev = (void*)flags;
- struct udl_device *udl;
+ struct drm_device *dev = &udl->drm;
int ret = -ENOMEM;
DRM_DEBUG("\n");
- udl = kzalloc(sizeof(struct udl_device), GFP_KERNEL);
- if (!udl)
- return -ENOMEM;
-
- udl->udev = udev;
- udl->ddev = dev;
- dev->dev_private = udl;
mutex_init(&udl->gem_lock);
@@ -358,7 +350,6 @@ int udl_driver_load(struct drm_device *dev, unsigned long flags)
err:
if (udl->urbs.count)
udl_free_urb_list(dev);
- kfree(udl);
DRM_ERROR("%d\n", ret);
return ret;
}
@@ -369,7 +360,7 @@ int udl_drop_usb(struct drm_device *dev)
return 0;
}
-void udl_driver_unload(struct drm_device *dev)
+void udl_fini(struct drm_device *dev)
{
struct udl_device *udl = to_udl(dev);
@@ -379,12 +370,4 @@ void udl_driver_unload(struct drm_device *dev)
udl_free_urb_list(dev);
udl_fbdev_cleanup(dev);
- kfree(udl);
-}
-
-void udl_driver_release(struct drm_device *dev)
-{
- udl_modeset_cleanup(dev);
- drm_dev_fini(dev);
- kfree(dev);
}