#include <drm/drm_print.h>
#include "drm_internal.h"
-#include "drm_legacy.h"
-
-#ifdef CONFIG_DRM_LEGACY
-/* List of devices hanging off drivers with stealth attach. */
-static LIST_HEAD(legacy_dev_list);
-static DEFINE_MUTEX(legacy_dev_list_lock);
-#endif
static int drm_get_pci_domain(struct drm_device *dev)
{
master->unique_len = strlen(master->unique);
return 0;
}
-
-#ifdef CONFIG_DRM_LEGACY
-
-static int drm_legacy_pci_irq_by_busid(struct drm_device *dev, struct drm_irq_busid *p)
-{
- struct pci_dev *pdev = to_pci_dev(dev->dev);
-
- if ((p->busnum >> 8) != drm_get_pci_domain(dev) ||
- (p->busnum & 0xff) != pdev->bus->number ||
- p->devnum != PCI_SLOT(pdev->devfn) || p->funcnum != PCI_FUNC(pdev->devfn))
- return -EINVAL;
-
- p->irq = pdev->irq;
-
- DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum,
- p->irq);
- return 0;
-}
-
-/**
- * drm_legacy_irq_by_busid - Get interrupt from bus ID
- * @dev: DRM device
- * @data: IOCTL parameter pointing to a drm_irq_busid structure
- * @file_priv: DRM file private.
- *
- * Finds the PCI device with the specified bus id and gets its IRQ number.
- * This IOCTL is deprecated, and will now return EINVAL for any busid not equal
- * to that of the device that this DRM instance attached to.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int drm_legacy_irq_by_busid(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- struct drm_irq_busid *p = data;
-
- if (!drm_core_check_feature(dev, DRIVER_LEGACY))
- return -EOPNOTSUPP;
-
- /* UMS was only ever support on PCI devices. */
- if (WARN_ON(!dev_is_pci(dev->dev)))
- return -EINVAL;
-
- if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
- return -EOPNOTSUPP;
-
- return drm_legacy_pci_irq_by_busid(dev, p);
-}
-
-void drm_legacy_pci_agp_destroy(struct drm_device *dev)
-{
- if (dev->agp) {
- arch_phys_wc_del(dev->agp->agp_mtrr);
- drm_legacy_agp_clear(dev);
- kfree(dev->agp);
- dev->agp = NULL;
- }
-}
-
-static void drm_legacy_pci_agp_init(struct drm_device *dev)
-{
- if (drm_core_check_feature(dev, DRIVER_USE_AGP)) {
- if (pci_find_capability(to_pci_dev(dev->dev), PCI_CAP_ID_AGP))
- dev->agp = drm_legacy_agp_init(dev);
- if (dev->agp) {
- dev->agp->agp_mtrr = arch_phys_wc_add(
- dev->agp->agp_info.aper_base,
- dev->agp->agp_info.aper_size *
- 1024 * 1024);
- }
- }
-}
-
-static int drm_legacy_get_pci_dev(struct pci_dev *pdev,
- const struct pci_device_id *ent,
- const struct drm_driver *driver)
-{
- struct drm_device *dev;
- int ret;
-
- DRM_DEBUG("\n");
-
- dev = drm_dev_alloc(driver, &pdev->dev);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
-
- ret = pci_enable_device(pdev);
- if (ret)
- goto err_free;
-
-#ifdef __alpha__
- dev->hose = pdev->sysdata;
-#endif
-
- drm_legacy_pci_agp_init(dev);
-
- ret = drm_dev_register(dev, ent->driver_data);
- if (ret)
- goto err_agp;
-
- if (drm_core_check_feature(dev, DRIVER_LEGACY)) {
- mutex_lock(&legacy_dev_list_lock);
- list_add_tail(&dev->legacy_dev_list, &legacy_dev_list);
- mutex_unlock(&legacy_dev_list_lock);
- }
-
- return 0;
-
-err_agp:
- drm_legacy_pci_agp_destroy(dev);
- pci_disable_device(pdev);
-err_free:
- drm_dev_put(dev);
- return ret;
-}
-
-/**
- * drm_legacy_pci_init - shadow-attach a legacy DRM PCI driver
- * @driver: DRM device driver
- * @pdriver: PCI device driver
- *
- * This is only used by legacy dri1 drivers and deprecated.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int drm_legacy_pci_init(const struct drm_driver *driver,
- struct pci_driver *pdriver)
-{
- struct pci_dev *pdev = NULL;
- const struct pci_device_id *pid;
- int i;
-
- DRM_DEBUG("\n");
-
- if (WARN_ON(!(driver->driver_features & DRIVER_LEGACY)))
- return -EINVAL;
-
- /* If not using KMS, fall back to stealth mode manual scanning. */
- for (i = 0; pdriver->id_table[i].vendor != 0; i++) {
- pid = &pdriver->id_table[i];
-
- /* Loop around setting up a DRM device for each PCI device
- * matching our ID and device class. If we had the internal
- * function that pci_get_subsys and pci_get_class used, we'd
- * be able to just pass pid in instead of doing a two-stage
- * thing.
- */
- pdev = NULL;
- while ((pdev =
- pci_get_subsys(pid->vendor, pid->device, pid->subvendor,
- pid->subdevice, pdev)) != NULL) {
- if ((pdev->class & pid->class_mask) != pid->class)
- continue;
-
- /* stealth mode requires a manual probe */
- pci_dev_get(pdev);
- drm_legacy_get_pci_dev(pdev, pid, driver);
- }
- }
- return 0;
-}
-EXPORT_SYMBOL(drm_legacy_pci_init);
-
-/**
- * drm_legacy_pci_exit - unregister shadow-attach legacy DRM driver
- * @driver: DRM device driver
- * @pdriver: PCI device driver
- *
- * Unregister a DRM driver shadow-attached through drm_legacy_pci_init(). This
- * is deprecated and only used by dri1 drivers.
- */
-void drm_legacy_pci_exit(const struct drm_driver *driver,
- struct pci_driver *pdriver)
-{
- struct drm_device *dev, *tmp;
-
- DRM_DEBUG("\n");
-
- if (!(driver->driver_features & DRIVER_LEGACY)) {
- WARN_ON(1);
- } else {
- mutex_lock(&legacy_dev_list_lock);
- list_for_each_entry_safe(dev, tmp, &legacy_dev_list,
- legacy_dev_list) {
- if (dev->driver == driver) {
- list_del(&dev->legacy_dev_list);
- drm_put_dev(dev);
- }
- }
- mutex_unlock(&legacy_dev_list_lock);
- }
- DRM_INFO("Module unloaded\n");
-}
-EXPORT_SYMBOL(drm_legacy_pci_exit);
-
-#endif
projects / linux-2.6-microblaze.git / blobdiff