diff options
Diffstat (limited to 'drivers/gpu/drm/drm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/drm_drv.c | 100 |
1 files changed, 34 insertions, 66 deletions
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 14c7a23dc157..c4ada8b6295b 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -46,9 +46,11 @@ * OTHER DEALINGS IN THE SOFTWARE. */ +#include <linux/debugfs.h> #include "drmP.h" #include "drm_core.h" + static int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv); @@ -178,7 +180,7 @@ int drm_lastclose(struct drm_device * dev) /* Clear AGP information */ if (drm_core_has_AGP(dev) && dev->agp && - !drm_core_check_feature(dev, DRIVER_MODESET)) { + !drm_core_check_feature(dev, DRIVER_MODESET)) { struct drm_agp_mem *entry, *tempe; /* Remove AGP resources, but leave dev->agp @@ -252,15 +254,19 @@ int drm_lastclose(struct drm_device * dev) int drm_init(struct drm_driver *driver) { struct pci_dev *pdev = NULL; - struct pci_device_id *pid; + const struct pci_device_id *pid; int i; DRM_DEBUG("\n"); INIT_LIST_HEAD(&driver->device_list); + if (driver->driver_features & DRIVER_MODESET) + return pci_register_driver(&driver->pci_driver); + + /* If not using KMS, fall back to stealth mode manual scanning. */ for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) { - pid = (struct pci_device_id *)&driver->pci_driver.id_table[i]; + pid = &driver->pci_driver.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 @@ -285,68 +291,17 @@ int drm_init(struct drm_driver *driver) EXPORT_SYMBOL(drm_init); -/** - * Called via cleanup_module() at module unload time. - * - * Cleans up all DRM device, calling drm_lastclose(). - * - * \sa drm_init - */ -static void drm_cleanup(struct drm_device * dev) -{ - struct drm_map_list *r_list, *list_temp; - DRM_DEBUG("\n"); - - if (!dev) { - DRM_ERROR("cleanup called no dev\n"); - return; - } - - drm_vblank_cleanup(dev); - - drm_lastclose(dev); - - if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && - dev->agp && dev->agp->agp_mtrr >= 0) { - int retval; - retval = mtrr_del(dev->agp->agp_mtrr, - dev->agp->agp_info.aper_base, - dev->agp->agp_info.aper_size * 1024 * 1024); - DRM_DEBUG("mtrr_del=%d\n", retval); - } - - if (dev->driver->unload) - dev->driver->unload(dev); - - if (drm_core_has_AGP(dev) && dev->agp) { - drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS); - dev->agp = NULL; - } - - drm_ht_remove(&dev->map_hash); - drm_ctxbitmap_cleanup(dev); - - list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) - drm_rmmap(dev, r_list->map); - - if (drm_core_check_feature(dev, DRIVER_MODESET)) - drm_put_minor(&dev->control); - - if (dev->driver->driver_features & DRIVER_GEM) - drm_gem_destroy(dev); - - drm_put_minor(&dev->primary); - if (drm_put_dev(dev)) - DRM_ERROR("Cannot unload module\n"); -} - void drm_exit(struct drm_driver *driver) { struct drm_device *dev, *tmp; DRM_DEBUG("\n"); - list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item) - drm_cleanup(dev); + if (driver->driver_features & DRIVER_MODESET) { + pci_unregister_driver(&driver->pci_driver); + } else { + list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item) + drm_put_dev(dev); + } DRM_INFO("Module unloaded\n"); } @@ -382,6 +337,13 @@ static int __init drm_core_init(void) goto err_p3; } + drm_debugfs_root = debugfs_create_dir("dri", NULL); + if (!drm_debugfs_root) { + DRM_ERROR("Cannot create /debugfs/dri\n"); + ret = -1; + goto err_p3; + } + drm_mem_init(); DRM_INFO("Initialized %s %d.%d.%d %s\n", @@ -400,6 +362,7 @@ err_p1: static void __exit drm_core_exit(void) { remove_proc_entry("dri", NULL); + debugfs_remove(drm_debugfs_root); drm_sysfs_destroy(); unregister_chrdev(DRM_MAJOR, "drm"); @@ -458,6 +421,7 @@ int drm_ioctl(struct inode *inode, struct file *filp, drm_ioctl_t *func; unsigned int nr = DRM_IOCTL_NR(cmd); int retcode = -EINVAL; + char stack_kdata[128]; char *kdata = NULL; atomic_inc(&dev->ioctl_count); @@ -496,10 +460,14 @@ int drm_ioctl(struct inode *inode, struct file *filp, retcode = -EACCES; } else { if (cmd & (IOC_IN | IOC_OUT)) { - kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); - if (!kdata) { - retcode = -ENOMEM; - goto err_i1; + if (_IOC_SIZE(cmd) <= sizeof(stack_kdata)) { + kdata = stack_kdata; + } else { + kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); + if (!kdata) { + retcode = -ENOMEM; + goto err_i1; + } } } @@ -520,7 +488,7 @@ int drm_ioctl(struct inode *inode, struct file *filp, } err_i1: - if (kdata) + if (kdata != stack_kdata) kfree(kdata); atomic_dec(&dev->ioctl_count); if (retcode) @@ -530,7 +498,7 @@ int drm_ioctl(struct inode *inode, struct file *filp, EXPORT_SYMBOL(drm_ioctl); -drm_local_map_t *drm_getsarea(struct drm_device *dev) +struct drm_local_map *drm_getsarea(struct drm_device *dev) { struct drm_map_list *entry; |