diff options
Diffstat (limited to 'drivers/char/drm/drm_stub.c')
-rw-r--r-- | drivers/char/drm/drm_stub.c | 114 |
1 files changed, 60 insertions, 54 deletions
diff --git a/drivers/char/drm/drm_stub.c b/drivers/char/drm/drm_stub.c index 95a976c96eb..60b6f8e8bf6 100644 --- a/drivers/char/drm/drm_stub.c +++ b/drivers/char/drm/drm_stub.c @@ -37,35 +37,37 @@ #include "drm_core.h" unsigned int drm_cards_limit = 16; /* Enough for one machine */ -unsigned int drm_debug = 0; /* 1 to enable debug output */ +unsigned int drm_debug = 0; /* 1 to enable debug output */ EXPORT_SYMBOL(drm_debug); -MODULE_AUTHOR( CORE_AUTHOR ); -MODULE_DESCRIPTION( CORE_DESC ); +MODULE_AUTHOR(CORE_AUTHOR); +MODULE_DESCRIPTION(CORE_DESC); MODULE_LICENSE("GPL and additional rights"); MODULE_PARM_DESC(cards_limit, "Maximum number of graphics cards"); MODULE_PARM_DESC(debug, "Enable debug output"); module_param_named(cards_limit, drm_cards_limit, int, 0444); -module_param_named(debug, drm_debug, int, 0666); +module_param_named(debug, drm_debug, int, 0600); drm_head_t **drm_heads; struct drm_sysfs_class *drm_class; struct proc_dir_entry *drm_proc_root; -static int drm_fill_in_dev(drm_device_t *dev, struct pci_dev *pdev, const struct pci_device_id *ent, struct drm_driver *driver) +static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev, + const struct pci_device_id *ent, + struct drm_driver *driver) { int retcode; spin_lock_init(&dev->count_lock); - init_timer( &dev->timer ); - sema_init( &dev->struct_sem, 1 ); - sema_init( &dev->ctxlist_sem, 1 ); + init_timer(&dev->timer); + sema_init(&dev->struct_sem, 1); + sema_init(&dev->ctxlist_sem, 1); - dev->pdev = pdev; + dev->pdev = pdev; #ifdef __alpha__ - dev->hose = pdev->sysdata; + dev->hose = pdev->sysdata; dev->pci_domain = dev->hose->bus->number; #else dev->pci_domain = 0; @@ -82,15 +84,15 @@ static int drm_fill_in_dev(drm_device_t *dev, struct pci_dev *pdev, const struct /* the DRM has 6 basic counters */ dev->counters = 6; - dev->types[0] = _DRM_STAT_LOCK; - dev->types[1] = _DRM_STAT_OPENS; - dev->types[2] = _DRM_STAT_CLOSES; - dev->types[3] = _DRM_STAT_IOCTLS; - dev->types[4] = _DRM_STAT_LOCKS; - dev->types[5] = _DRM_STAT_UNLOCKS; + dev->types[0] = _DRM_STAT_LOCK; + dev->types[1] = _DRM_STAT_OPENS; + dev->types[2] = _DRM_STAT_CLOSES; + dev->types[3] = _DRM_STAT_IOCTLS; + dev->types[4] = _DRM_STAT_LOCKS; + dev->types[5] = _DRM_STAT_UNLOCKS; dev->driver = driver; - + if (dev->driver->preinit) if ((retcode = dev->driver->preinit(dev, ent->driver_data))) goto error_out_unreg; @@ -98,29 +100,30 @@ static int drm_fill_in_dev(drm_device_t *dev, struct pci_dev *pdev, const struct if (drm_core_has_AGP(dev)) { if (drm_device_is_agp(dev)) dev->agp = drm_agp_init(dev); - if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && (dev->agp == NULL)) { - DRM_ERROR( "Cannot initialize the agpgart module.\n" ); + if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) + && (dev->agp == NULL)) { + DRM_ERROR("Cannot initialize the agpgart module.\n"); retcode = -EINVAL; goto error_out_unreg; } if (drm_core_has_MTRR(dev)) { if (dev->agp) - dev->agp->agp_mtrr = mtrr_add( dev->agp->agp_info.aper_base, - dev->agp->agp_info.aper_size*1024*1024, - MTRR_TYPE_WRCOMB, - 1 ); + dev->agp->agp_mtrr = + mtrr_add(dev->agp->agp_info.aper_base, + dev->agp->agp_info.aper_size * + 1024 * 1024, MTRR_TYPE_WRCOMB, 1); } } - retcode = drm_ctxbitmap_init( dev ); - if( retcode ) { - DRM_ERROR( "Cannot allocate memory for context bitmap.\n" ); + retcode = drm_ctxbitmap_init(dev); + if (retcode) { + DRM_ERROR("Cannot allocate memory for context bitmap.\n"); goto error_out_unreg; } return 0; - -error_out_unreg: + + error_out_unreg: drm_takedown(dev); return retcode; } @@ -140,7 +143,7 @@ int drm_stub_open(struct inode *inode, struct file *filp) int minor = iminor(inode); int err = -ENODEV; struct file_operations *old_fops; - + DRM_DEBUG("\n"); if (!((minor >= 0) && (minor < drm_cards_limit))) @@ -148,7 +151,7 @@ int drm_stub_open(struct inode *inode, struct file *filp) if (!drm_heads[minor]) return -ENODEV; - + if (!(dev = drm_heads[minor]->dev)) return -ENODEV; @@ -174,7 +177,7 @@ int drm_stub_open(struct inode *inode, struct file *filp) * create the proc init entry via proc_init(). This routines assigns * minor numbers to secondary heads of multi-headed cards */ -static int drm_get_head(drm_device_t *dev, drm_head_t *head) +static int drm_get_head(drm_device_t * dev, drm_head_t * head) { drm_head_t **heads = drm_heads; int ret; @@ -184,26 +187,27 @@ static int drm_get_head(drm_device_t *dev, drm_head_t *head) for (minor = 0; minor < drm_cards_limit; minor++, heads++) { if (!*heads) { - + *head = (drm_head_t) { - .dev = dev, - .device = MKDEV(DRM_MAJOR, minor), - .minor = minor, - }; - - if ((ret = drm_proc_init(dev, minor, drm_proc_root, &head->dev_root))) { - printk (KERN_ERR "DRM: Failed to initialize /proc/dri.\n"); + .dev = dev,.device = + MKDEV(DRM_MAJOR, minor),.minor = minor,}; + + if ((ret = + drm_proc_init(dev, minor, drm_proc_root, + &head->dev_root))) { + printk(KERN_ERR + "DRM: Failed to initialize /proc/dri.\n"); goto err_g1; } - head->dev_class = drm_sysfs_device_add(drm_class, MKDEV(DRM_MAJOR, minor), &dev->pdev->dev, "card%d", minor); if (IS_ERR(head->dev_class)) { - printk(KERN_ERR "DRM: Error sysfs_device_add.\n"); + printk(KERN_ERR + "DRM: Error sysfs_device_add.\n"); ret = PTR_ERR(head->dev_class); goto err_g2; } @@ -215,13 +219,14 @@ static int drm_get_head(drm_device_t *dev, drm_head_t *head) } DRM_ERROR("out of minors\n"); return -ENOMEM; -err_g2: + err_g2: drm_proc_cleanup(minor, drm_proc_root, head->dev_root); -err_g1: - *head = (drm_head_t) {.dev = NULL}; + err_g1: + *head = (drm_head_t) { + .dev = NULL}; return ret; } - + /** * Register. * @@ -234,7 +239,7 @@ err_g1: * Try and register, if we fail to register, backout previous work. */ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, - struct drm_driver *driver) + struct drm_driver *driver) { drm_device_t *dev; int ret; @@ -261,10 +266,11 @@ int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent, return 0; -err_g1: + err_g1: drm_free(dev, sizeof(*dev), DRM_MEM_STUB); return ret; } + EXPORT_SYMBOL(drm_get_dev); /** @@ -305,19 +311,19 @@ int drm_put_dev(drm_device_t * dev) * last minor released. * */ -int drm_put_head(drm_head_t *head) +int drm_put_head(drm_head_t * head) { int minor = head->minor; - + DRM_DEBUG("release secondary minor %d\n", minor); - + drm_proc_cleanup(minor, drm_proc_root, head->dev_root); drm_sysfs_device_remove(MKDEV(DRM_MAJOR, head->minor)); - - *head = (drm_head_t){.dev = NULL}; + + *head = (drm_head_t) { + .dev = NULL}; drm_heads[minor] = NULL; - + return 0; } - |