diff options
Diffstat (limited to 'linux')
| -rw-r--r-- | linux/drm_drv.h | 15 | ||||
| -rw-r--r-- | linux/drm_stub.h | 46 |
2 files changed, 34 insertions, 27 deletions
diff --git a/linux/drm_drv.h b/linux/drm_drv.h index cdeb9b68..feeaf4d1 100644 --- a/linux/drm_drv.h +++ b/linux/drm_drv.h @@ -144,6 +144,15 @@ static struct file_operations DRM(fops) = { \ } #endif +/** Stub information */ +struct drm_stub_info { + int (*info_register)(const char *name, struct file_operations *fops, + drm_device_t *dev); + int (*info_unregister)(int minor); + struct class_simple *drm_class; +}; +extern struct drm_stub_info DRM(stub_info); + #ifndef MODULE /** Use an additional macro to avoid preprocessor troubles */ #define DRM_OPTIONS_FUNC DRM(options) @@ -637,6 +646,11 @@ static int DRM(probe)(struct pci_dev *pdev) ); DRIVER_POSTINIT(); + /* + * don't move this earlier, for upcoming hotplugging support + */ + class_simple_device_add(DRM(stub_info).drm_class, + MKDEV(DRM_MAJOR, dev->minor), &pdev->dev, "card%d", dev->minor); return 0; } @@ -721,6 +735,7 @@ static void __exit drm_cleanup( void ) } #endif } + class_simple_device_remove(MKDEV(DRM_MAJOR, 0)); DRIVER_POSTCLEANUP(); DRM(numdevs) = 0; } diff --git a/linux/drm_stub.h b/linux/drm_stub.h index ea33096d..7694de14 100644 --- a/linux/drm_stub.h +++ b/linux/drm_stub.h @@ -36,8 +36,6 @@ #define DRM_STUB_MAXCARDS 16 /* Enough for one machine */ -static struct class_simple *drm_class; - /** Stub list. One for each minor. */ static struct drm_stub_list { const char *name; @@ -47,13 +45,6 @@ static struct drm_stub_list { static struct proc_dir_entry *DRM(stub_root); -/** Stub information */ -static struct drm_stub_info { - int (*info_register)(const char *name, struct file_operations *fops, - drm_device_t *dev); - int (*info_unregister)(int minor); -} DRM(stub_info); - /** * File \c open operation. * @@ -120,7 +111,6 @@ static int DRM(stub_getminor)(const char *name, struct file_operations *fops, DRM(stub_root) = DRM(proc_init)(dev, i, DRM(stub_root), &DRM(stub_list)[i] .dev_root); - class_simple_device_add(drm_class, MKDEV(DRM_MAJOR, i), NULL, name); return i; } } @@ -145,16 +135,14 @@ static int DRM(stub_putminor)(int minor) DRM(proc_cleanup)(minor, DRM(stub_root), DRM(stub_list)[minor].dev_root); if (minor) { - class_simple_device_remove(MKDEV(DRM_MAJOR, minor)); inter_module_put("drm"); } else { inter_module_unregister("drm"); DRM(free)(DRM(stub_list), sizeof(*DRM(stub_list)) * DRM_STUB_MAXCARDS, DRM_MEM_STUB); + class_simple_destroy(DRM(stub_info).drm_class); unregister_chrdev(DRM_MAJOR, "drm"); - class_simple_device_remove(MKDEV(DRM_MAJOR, minor)); - class_simple_destroy(drm_class); } return 0; } @@ -182,27 +170,24 @@ int DRM(stub_register)(const char *name, struct file_operations *fops, DRM_DEBUG("\n"); ret1 = register_chrdev(DRM_MAJOR, "drm", &DRM(stub_fops)); - if (!ret1) { - drm_class = class_simple_create(THIS_MODULE, "drm"); - if (IS_ERR(drm_class)) { - printk (KERN_ERR "Error creating drm class.\n"); - unregister_chrdev(DRM_MAJOR, "drm"); - return PTR_ERR(drm_class); - } - } - else if (ret1 == -EBUSY) + if (ret1 == -EBUSY) i = (struct drm_stub_info *)inter_module_get("drm"); - else + if (ret1 < 0) return -1; if (i) { /* Already registered */ DRM(stub_info).info_register = i->info_register; DRM(stub_info).info_unregister = i->info_unregister; + DRM(stub_info).drm_class = i->drm_class; DRM_DEBUG("already registered\n"); - } else if (DRM(stub_info).info_register != DRM(stub_getminor)) { - DRM(stub_info).info_register = DRM(stub_getminor); - DRM(stub_info).info_unregister = DRM(stub_putminor); + } else if (DRM(stub_info).drm_class == NULL) { + DRM(stub_info).drm_class = class_simple_create(THIS_MODULE, "dri"); + if (IS_ERR(DRM(stub_info).drm_class)) { + printk (KERN_ERR "Error creating drm class.\n"); + unregister_chrdev(DRM_MAJOR, "drm"); + return PTR_ERR(DRM(stub_info).drm_class); + } DRM_DEBUG("calling inter_module_register\n"); inter_module_register("drm", THIS_MODULE, &DRM(stub_info)); } @@ -211,7 +196,7 @@ int DRM(stub_register)(const char *name, struct file_operations *fops, if (ret2) { if (!ret1) { unregister_chrdev(DRM_MAJOR, "drm"); - class_simple_destroy(drm_class); + class_simple_destroy(DRM(stub_info).drm_class); } if (!i) inter_module_unregister("drm"); @@ -235,3 +220,10 @@ int DRM(stub_unregister)(int minor) return DRM(stub_info).info_unregister(minor); return -1; } + +/** Stub information */ +struct drm_stub_info DRM(stub_info) = { + .info_register = DRM(stub_getminor), + .info_unregister = DRM(stub_putminor), + .drm_class = NULL, +}; |