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authorDaniel Vetter <daniel.vetter@ffwll.ch>2017-05-24 17:51:40 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2017-06-20 11:41:03 +0300
commit10631d724deff712343d96dd3017cd323349f761 (patch)
tree280d7d7a05cb5242b19e5b045e2b86e7353cbbf4 /drivers/gpu/drm/drm_pci.c
parent5c484cee7ef9c4fd29fa0ba09640d55960977145 (diff)
downloadlinux-10631d724deff712343d96dd3017cd323349f761.tar.xz
drm/pci: Deprecate drm_pci_init/exit completely
The magic switching between proper pci driver and shadow-attach isn't useful anymore since there's no ums+kms drivers left. Let's split this up properly, calling pci_register_driver for kms drivers and renaming the shadow-attach init to drm_legacy_pci_init/exit. Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-6-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/drm_pci.c')
-rw-r--r--drivers/gpu/drm/drm_pci.c39
1 files changed, 12 insertions, 27 deletions
diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index ad31d95e77c9..1235c9877d6f 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -280,20 +280,15 @@ err_free:
EXPORT_SYMBOL(drm_get_pci_dev);
/**
- * drm_pci_init - Register matching PCI devices with the DRM subsystem
+ * drm_legacy_pci_init - shadow-attach a legacy DRM PCI driver
* @driver: DRM device driver
* @pdriver: PCI device driver
*
- * Initializes a drm_device structures, registering the stubs and initializing
- * the AGP device.
- *
- * NOTE: This function is deprecated. Modern modesetting drm drivers should use
- * pci_register_driver() directly, this function only provides shadow-binding
- * support for old legacy drivers on top of that core pci function.
+ * This is only used by legacy dri1 drivers and deprecated.
*
* Return: 0 on success or a negative error code on failure.
*/
-int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
+int drm_legacy_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
{
struct pci_dev *pdev = NULL;
const struct pci_device_id *pid;
@@ -301,8 +296,8 @@ int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
DRM_DEBUG("\n");
- if (!(driver->driver_features & DRIVER_LEGACY))
- return pci_register_driver(pdriver);
+ if (WARN_ON(!(driver->driver_features & DRIVER_LEGACY)))
+ return -EINVAL;
/* If not using KMS, fall back to stealth mode manual scanning. */
INIT_LIST_HEAD(&driver->legacy_dev_list);
@@ -329,6 +324,7 @@ int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
}
return 0;
}
+EXPORT_SYMBOL(drm_legacy_pci_init);
int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *mask)
{
@@ -390,11 +386,6 @@ EXPORT_SYMBOL(drm_pcie_get_max_link_width);
#else
-int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
-{
- return -1;
-}
-
void drm_pci_agp_destroy(struct drm_device *dev) {}
int drm_irq_by_busid(struct drm_device *dev, void *data,
@@ -404,27 +395,21 @@ int drm_irq_by_busid(struct drm_device *dev, void *data,
}
#endif
-EXPORT_SYMBOL(drm_pci_init);
-
/**
- * drm_pci_exit - Unregister matching PCI devices from the DRM subsystem
+ * drm_legacy_pci_exit - unregister shadow-attach legacy DRM driver
* @driver: DRM device driver
* @pdriver: PCI device driver
*
- * Unregisters one or more devices matched by a PCI driver from the DRM
- * subsystem.
- *
- * NOTE: This function is deprecated. Modern modesetting drm drivers should use
- * pci_unregister_driver() directly, this function only provides shadow-binding
- * support for old legacy drivers on top of that core pci function.
+ * Unregister a DRM driver shadow-attached through drm_legacy_pci_init(). This
+ * is deprecated and only used by dri1 drivers.
*/
-void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver)
+void drm_legacy_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver)
{
struct drm_device *dev, *tmp;
DRM_DEBUG("\n");
if (!(driver->driver_features & DRIVER_LEGACY)) {
- pci_unregister_driver(pdriver);
+ WARN_ON(1);
} else {
list_for_each_entry_safe(dev, tmp, &driver->legacy_dev_list,
legacy_dev_list) {
@@ -434,4 +419,4 @@ void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver)
}
DRM_INFO("Module unloaded\n");
}
-EXPORT_SYMBOL(drm_pci_exit);
+EXPORT_SYMBOL(drm_legacy_pci_exit);