diff options
Diffstat (limited to 'drivers/gpu/drm/drm_drv.c')
| -rw-r--r-- | drivers/gpu/drm/drm_drv.c | 410 |
1 files changed, 279 insertions, 131 deletions
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index c6eb8972451a..2915118436ce 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -26,36 +26,42 @@ * DEALINGS IN THE SOFTWARE. */ +#include <linux/bitops.h> +#include <linux/cgroup_dmem.h> #include <linux/debugfs.h> +#include <linux/export.h> #include <linux/fs.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/mount.h> #include <linux/pseudo_fs.h> +#include <linux/sched.h> #include <linux/slab.h> +#include <linux/sprintf.h> #include <linux/srcu.h> +#include <linux/xarray.h> #include <drm/drm_accel.h> +#include <drm/drm_bridge.h> #include <drm/drm_cache.h> -#include <drm/drm_client.h> +#include <drm/drm_client_event.h> #include <drm/drm_color_mgmt.h> #include <drm/drm_drv.h> #include <drm/drm_file.h> #include <drm/drm_managed.h> #include <drm/drm_mode_object.h> +#include <drm/drm_panic.h> #include <drm/drm_print.h> #include <drm/drm_privacy_screen_machine.h> #include "drm_crtc_internal.h" #include "drm_internal.h" -#include "drm_legacy.h" MODULE_AUTHOR("Gareth Hughes, Leif Delgass, José Fonseca, Jon Smirl"); MODULE_DESCRIPTION("DRM shared core routines"); MODULE_LICENSE("GPL and additional rights"); -static DEFINE_SPINLOCK(drm_minor_lock); -static struct idr drm_minors_idr; +DEFINE_XARRAY_ALLOC(drm_minors_xa); /* * If the drm core fails to init for whatever reason, @@ -66,8 +72,6 @@ static struct idr drm_minors_idr; */ static bool drm_core_init_complete; -static struct dentry *drm_debugfs_root; - DEFINE_STATIC_SRCU(drm_unplug_srcu); /* @@ -83,8 +87,20 @@ DEFINE_STATIC_SRCU(drm_unplug_srcu); * registered and unregistered dynamically according to device-state. */ +static struct xarray *drm_minor_get_xa(enum drm_minor_type type) +{ + if (type == DRM_MINOR_PRIMARY || type == DRM_MINOR_RENDER) + return &drm_minors_xa; +#if IS_ENABLED(CONFIG_DRM_ACCEL) + else if (type == DRM_MINOR_ACCEL) + return &accel_minors_xa; +#endif + else + return ERR_PTR(-EOPNOTSUPP); +} + static struct drm_minor **drm_minor_get_slot(struct drm_device *dev, - unsigned int type) + enum drm_minor_type type) { switch (type) { case DRM_MINOR_PRIMARY: @@ -101,25 +117,31 @@ static struct drm_minor **drm_minor_get_slot(struct drm_device *dev, static void drm_minor_alloc_release(struct drm_device *dev, void *data) { struct drm_minor *minor = data; - unsigned long flags; WARN_ON(dev != minor->dev); put_device(minor->kdev); - if (minor->type == DRM_MINOR_ACCEL) { - accel_minor_remove(minor->index); - } else { - spin_lock_irqsave(&drm_minor_lock, flags); - idr_remove(&drm_minors_idr, minor->index); - spin_unlock_irqrestore(&drm_minor_lock, flags); - } + xa_erase(drm_minor_get_xa(minor->type), minor->index); } -static int drm_minor_alloc(struct drm_device *dev, unsigned int type) +/* + * DRM used to support 64 devices, for backwards compatibility we need to maintain the + * minor allocation scheme where minors 0-63 are primary nodes, 64-127 are control nodes, + * and 128-191 are render nodes. + * After reaching the limit, we're allocating minors dynamically - first-come, first-serve. + * Accel nodes are using a distinct major, so the minors are allocated in continuous 0-MAX + * range. + */ +#define DRM_MINOR_LIMIT(t) ({ \ + typeof(t) _t = (t); \ + _t == DRM_MINOR_ACCEL ? XA_LIMIT(0, ACCEL_MAX_MINORS) : XA_LIMIT(64 * _t, 64 * _t + 63); \ +}) +#define DRM_EXTENDED_MINOR_LIMIT XA_LIMIT(192, (1 << MINORBITS) - 1) + +static int drm_minor_alloc(struct drm_device *dev, enum drm_minor_type type) { struct drm_minor *minor; - unsigned long flags; int r; minor = drmm_kzalloc(dev, sizeof(*minor), GFP_KERNEL); @@ -129,25 +151,14 @@ static int drm_minor_alloc(struct drm_device *dev, unsigned int type) minor->type = type; minor->dev = dev; - idr_preload(GFP_KERNEL); - if (type == DRM_MINOR_ACCEL) { - r = accel_minor_alloc(); - } else { - spin_lock_irqsave(&drm_minor_lock, flags); - r = idr_alloc(&drm_minors_idr, - NULL, - 64 * type, - 64 * (type + 1), - GFP_NOWAIT); - spin_unlock_irqrestore(&drm_minor_lock, flags); - } - idr_preload_end(); - + r = xa_alloc(drm_minor_get_xa(type), &minor->index, + NULL, DRM_MINOR_LIMIT(type), GFP_KERNEL); + if (r == -EBUSY && (type == DRM_MINOR_PRIMARY || type == DRM_MINOR_RENDER)) + r = xa_alloc(&drm_minors_xa, &minor->index, + NULL, DRM_EXTENDED_MINOR_LIMIT, GFP_KERNEL); if (r < 0) return r; - minor->index = r; - r = drmm_add_action_or_reset(dev, drm_minor_alloc_release, minor); if (r) return r; @@ -160,10 +171,10 @@ static int drm_minor_alloc(struct drm_device *dev, unsigned int type) return 0; } -static int drm_minor_register(struct drm_device *dev, unsigned int type) +static int drm_minor_register(struct drm_device *dev, enum drm_minor_type type) { struct drm_minor *minor; - unsigned long flags; + void *entry; int ret; DRM_DEBUG("\n"); @@ -172,10 +183,8 @@ static int drm_minor_register(struct drm_device *dev, unsigned int type) if (!minor) return 0; - if (minor->type == DRM_MINOR_ACCEL) { - accel_debugfs_init(minor, minor->index); - } else { - ret = drm_debugfs_init(minor, minor->index, drm_debugfs_root); + if (minor->type != DRM_MINOR_ACCEL) { + ret = drm_debugfs_register(minor, minor->index); if (ret) { DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n"); goto err_debugfs; @@ -187,43 +196,35 @@ static int drm_minor_register(struct drm_device *dev, unsigned int type) goto err_debugfs; /* replace NULL with @minor so lookups will succeed from now on */ - if (minor->type == DRM_MINOR_ACCEL) { - accel_minor_replace(minor, minor->index); - } else { - spin_lock_irqsave(&drm_minor_lock, flags); - idr_replace(&drm_minors_idr, minor, minor->index); - spin_unlock_irqrestore(&drm_minor_lock, flags); + entry = xa_store(drm_minor_get_xa(type), minor->index, minor, GFP_KERNEL); + if (xa_is_err(entry)) { + ret = xa_err(entry); + goto err_debugfs; } + WARN_ON(entry); DRM_DEBUG("new minor registered %d\n", minor->index); return 0; err_debugfs: - drm_debugfs_cleanup(minor); + drm_debugfs_unregister(minor); return ret; } -static void drm_minor_unregister(struct drm_device *dev, unsigned int type) +static void drm_minor_unregister(struct drm_device *dev, enum drm_minor_type type) { struct drm_minor *minor; - unsigned long flags; minor = *drm_minor_get_slot(dev, type); if (!minor || !device_is_registered(minor->kdev)) return; /* replace @minor with NULL so lookups will fail from now on */ - if (minor->type == DRM_MINOR_ACCEL) { - accel_minor_replace(NULL, minor->index); - } else { - spin_lock_irqsave(&drm_minor_lock, flags); - idr_replace(&drm_minors_idr, NULL, minor->index); - spin_unlock_irqrestore(&drm_minor_lock, flags); - } + xa_store(drm_minor_get_xa(type), minor->index, NULL, GFP_KERNEL); device_del(minor->kdev); dev_set_drvdata(minor->kdev, NULL); /* safety belt */ - drm_debugfs_cleanup(minor); + drm_debugfs_unregister(minor); } /* @@ -235,16 +236,15 @@ static void drm_minor_unregister(struct drm_device *dev, unsigned int type) * minor->dev pointer will stay valid! However, the device may get unplugged and * unregistered while you hold the minor. */ -struct drm_minor *drm_minor_acquire(unsigned int minor_id) +struct drm_minor *drm_minor_acquire(struct xarray *minor_xa, unsigned int minor_id) { struct drm_minor *minor; - unsigned long flags; - spin_lock_irqsave(&drm_minor_lock, flags); - minor = idr_find(&drm_minors_idr, minor_id); + xa_lock(minor_xa); + minor = xa_load(minor_xa, minor_id); if (minor) drm_dev_get(minor->dev); - spin_unlock_irqrestore(&drm_minor_lock, flags); + xa_unlock(minor_xa); if (!minor) { return ERR_PTR(-ENODEV); @@ -347,7 +347,7 @@ void drm_minor_release(struct drm_minor *minor) * if (ret) * return ret; * - * drm_fbdev_generic_setup(drm, 32); + * drm_fbdev_{...}_setup(drm, 32); * * return 0; * } @@ -500,6 +500,105 @@ void drm_dev_unplug(struct drm_device *dev) } EXPORT_SYMBOL(drm_dev_unplug); +/** + * drm_dev_set_dma_dev - set the DMA device for a DRM device + * @dev: DRM device + * @dma_dev: DMA device or NULL + * + * Sets the DMA device of the given DRM device. Only required if + * the DMA device is different from the DRM device's parent. After + * calling this function, the DRM device holds a reference on + * @dma_dev. Pass NULL to clear the DMA device. + */ +void drm_dev_set_dma_dev(struct drm_device *dev, struct device *dma_dev) +{ + dma_dev = get_device(dma_dev); + + put_device(dev->dma_dev); + dev->dma_dev = dma_dev; +} +EXPORT_SYMBOL(drm_dev_set_dma_dev); + +/* + * Available recovery methods for wedged device. To be sent along with device + * wedged uevent. + */ +static const char *drm_get_wedge_recovery(unsigned int opt) +{ + switch (BIT(opt)) { + case DRM_WEDGE_RECOVERY_NONE: + return "none"; + case DRM_WEDGE_RECOVERY_REBIND: + return "rebind"; + case DRM_WEDGE_RECOVERY_BUS_RESET: + return "bus-reset"; + case DRM_WEDGE_RECOVERY_VENDOR: + return "vendor-specific"; + default: + return NULL; + } +} + +#define WEDGE_STR_LEN 32 +#define PID_STR_LEN 15 +#define COMM_STR_LEN (TASK_COMM_LEN + 5) + +/** + * drm_dev_wedged_event - generate a device wedged uevent + * @dev: DRM device + * @method: method(s) to be used for recovery + * @info: optional information about the guilty task + * + * This generates a device wedged uevent for the DRM device specified by @dev. + * Recovery @method\(s) of choice will be sent in the uevent environment as + * ``WEDGED=<method1>[,..,<methodN>]`` in order of less to more side-effects. + * If caller is unsure about recovery or @method is unknown (0), + * ``WEDGED=unknown`` will be sent instead. + * + * Refer to "Device Wedging" chapter in Documentation/gpu/drm-uapi.rst for more + * details. + * + * Returns: 0 on success, negative error code otherwise. + */ +int drm_dev_wedged_event(struct drm_device *dev, unsigned long method, + struct drm_wedge_task_info *info) +{ + char event_string[WEDGE_STR_LEN], pid_string[PID_STR_LEN], comm_string[COMM_STR_LEN]; + char *envp[] = { event_string, NULL, NULL, NULL }; + const char *recovery = NULL; + unsigned int len, opt; + + len = scnprintf(event_string, sizeof(event_string), "%s", "WEDGED="); + + for_each_set_bit(opt, &method, BITS_PER_TYPE(method)) { + recovery = drm_get_wedge_recovery(opt); + if (drm_WARN_ONCE(dev, !recovery, "invalid recovery method %u\n", opt)) + break; + + len += scnprintf(event_string + len, sizeof(event_string) - len, "%s,", recovery); + } + + if (recovery) + /* Get rid of trailing comma */ + event_string[len - 1] = '\0'; + else + /* Caller is unsure about recovery, do the best we can at this point. */ + snprintf(event_string, sizeof(event_string), "%s", "WEDGED=unknown"); + + drm_info(dev, "device wedged, %s\n", method == DRM_WEDGE_RECOVERY_NONE ? + "but recovered through reset" : "needs recovery"); + + if (info && (info->comm[0] != '\0') && (info->pid >= 0)) { + snprintf(pid_string, sizeof(pid_string), "PID=%u", info->pid); + snprintf(comm_string, sizeof(comm_string), "TASK=%s", info->comm); + envp[1] = pid_string; + envp[2] = comm_string; + } + + return kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp); +} +EXPORT_SYMBOL(drm_dev_wedged_event); + /* * DRM internal mount * We want to be able to allocate our own "struct address_space" to control @@ -586,10 +685,10 @@ static void drm_fs_inode_free(struct inode *inode) static void drm_dev_init_release(struct drm_device *dev, void *res) { - drm_legacy_ctxbitmap_cleanup(dev); - drm_legacy_remove_map_hash(dev); drm_fs_inode_free(dev->anon_inode); + put_device(dev->dma_dev); + dev->dma_dev = NULL; put_device(dev->dev); /* Prevent use-after-free in drm_managed_release when debugging is * enabled. Slightly awkward, but can't really be helped. */ @@ -597,9 +696,6 @@ static void drm_dev_init_release(struct drm_device *dev, void *res) mutex_destroy(&dev->master_mutex); mutex_destroy(&dev->clientlist_mutex); mutex_destroy(&dev->filelist_mutex); - mutex_destroy(&dev->struct_mutex); - mutex_destroy(&dev->debugfs_mutex); - drm_legacy_destroy_members(dev); } static int drm_dev_init(struct drm_device *dev, @@ -634,19 +730,17 @@ static int drm_dev_init(struct drm_device *dev, return -EINVAL; } - drm_legacy_init_members(dev); INIT_LIST_HEAD(&dev->filelist); INIT_LIST_HEAD(&dev->filelist_internal); INIT_LIST_HEAD(&dev->clientlist); + INIT_LIST_HEAD(&dev->client_sysrq_list); INIT_LIST_HEAD(&dev->vblank_event_list); - INIT_LIST_HEAD(&dev->debugfs_list); spin_lock_init(&dev->event_lock); - mutex_init(&dev->struct_mutex); mutex_init(&dev->filelist_mutex); mutex_init(&dev->clientlist_mutex); mutex_init(&dev->master_mutex); - mutex_init(&dev->debugfs_mutex); + raw_spin_lock_init(&dev->mode_config.panic_lock); ret = drmm_add_action_or_reset(dev, drm_dev_init_release, NULL); if (ret) @@ -677,12 +771,6 @@ static int drm_dev_init(struct drm_device *dev, goto err; } - ret = drm_legacy_create_map_hash(dev); - if (ret) - goto err; - - drm_legacy_ctxbitmap_init(dev); - if (drm_core_check_feature(dev, DRIVER_GEM)) { ret = drm_gem_init(dev); if (ret) { @@ -691,9 +779,13 @@ static int drm_dev_init(struct drm_device *dev, } } - ret = drm_dev_set_unique(dev, dev_name(parent)); - if (ret) + dev->unique = drmm_kstrdup(dev, dev_name(parent), GFP_KERNEL); + if (!dev->unique) { + ret = -ENOMEM; goto err; + } + + drm_debugfs_dev_init(dev); return 0; @@ -747,36 +839,62 @@ void *__devm_drm_dev_alloc(struct device *parent, EXPORT_SYMBOL(__devm_drm_dev_alloc); /** - * drm_dev_alloc - Allocate new DRM device - * @driver: DRM driver to allocate device for + * __drm_dev_alloc - Allocation of a &drm_device instance * @parent: Parent device object + * @driver: DRM driver + * @size: the size of the struct which contains struct drm_device + * @offset: the offset of the &drm_device within the container. * - * This is the deprecated version of devm_drm_dev_alloc(), which does not support - * subclassing through embedding the struct &drm_device in a driver private - * structure, and which does not support automatic cleanup through devres. + * This should *NOT* be by any drivers, but is a dedicated interface for the + * corresponding Rust abstraction. * - * RETURNS: - * Pointer to new DRM device, or ERR_PTR on failure. + * This is the same as devm_drm_dev_alloc(), but without the corresponding + * resource management through the parent device, but not the same as + * drm_dev_alloc(), since the latter is the deprecated version, which does not + * support subclassing. + * + * Returns: A pointer to new DRM device, or an ERR_PTR on failure. */ -struct drm_device *drm_dev_alloc(const struct drm_driver *driver, - struct device *parent) +void *__drm_dev_alloc(struct device *parent, + const struct drm_driver *driver, + size_t size, size_t offset) { - struct drm_device *dev; + void *container; + struct drm_device *drm; int ret; - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) + container = kzalloc(size, GFP_KERNEL); + if (!container) return ERR_PTR(-ENOMEM); - ret = drm_dev_init(dev, driver, parent); + drm = container + offset; + ret = drm_dev_init(drm, driver, parent); if (ret) { - kfree(dev); + kfree(container); return ERR_PTR(ret); } + drmm_add_final_kfree(drm, container); - drmm_add_final_kfree(dev, dev); + return container; +} +EXPORT_SYMBOL(__drm_dev_alloc); - return dev; +/** + * drm_dev_alloc - Allocate new DRM device + * @driver: DRM driver to allocate device for + * @parent: Parent device object + * + * This is the deprecated version of devm_drm_dev_alloc(), which does not support + * subclassing through embedding the struct &drm_device in a driver private + * structure, and which does not support automatic cleanup through devres. + * + * RETURNS: + * Pointer to new DRM device, or ERR_PTR on failure. + */ +struct drm_device *drm_dev_alloc(const struct drm_driver *driver, + struct device *parent) +{ + return __drm_dev_alloc(parent, driver, sizeof(struct drm_device), 0); } EXPORT_SYMBOL(drm_dev_alloc); @@ -784,6 +902,9 @@ static void drm_dev_release(struct kref *ref) { struct drm_device *dev = container_of(ref, struct drm_device, ref); + /* Just in case register/unregister was never called */ + drm_debugfs_dev_fini(dev); + if (dev->driver->release) dev->driver->release(dev); @@ -825,6 +946,37 @@ void drm_dev_put(struct drm_device *dev) } EXPORT_SYMBOL(drm_dev_put); +static void drmm_cg_unregister_region(struct drm_device *dev, void *arg) +{ + dmem_cgroup_unregister_region(arg); +} + +/** + * drmm_cgroup_register_region - Register a region of a DRM device to cgroups + * @dev: device for region + * @region_name: Region name for registering + * @size: Size of region in bytes + * + * This decreases the ref-count of @dev by one. The device is destroyed if the + * ref-count drops to zero. + */ +struct dmem_cgroup_region *drmm_cgroup_register_region(struct drm_device *dev, const char *region_name, u64 size) +{ + struct dmem_cgroup_region *region; + int ret; + + region = dmem_cgroup_register_region(size, "drm/%s/%s", dev->unique, region_name); + if (IS_ERR_OR_NULL(region)) + return region; + + ret = drmm_add_action_or_reset(dev, drmm_cg_unregister_region, region); + if (ret) + return ERR_PTR(ret); + + return region; +} +EXPORT_SYMBOL_GPL(drmm_cgroup_register_region); + static int create_compat_control_link(struct drm_device *dev) { struct drm_minor *minor; @@ -914,6 +1066,11 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags) if (drm_dev_needs_global_mutex(dev)) mutex_lock(&drm_global_mutex); + if (drm_core_check_feature(dev, DRIVER_COMPUTE_ACCEL)) + accel_debugfs_register(dev); + else + drm_debugfs_dev_register(dev); + ret = drm_minor_register(dev, DRM_MINOR_RENDER); if (ret) goto err_minors; @@ -938,17 +1095,25 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags) goto err_minors; } - if (drm_core_check_feature(dev, DRIVER_MODESET)) - drm_modeset_register_all(dev); + if (drm_core_check_feature(dev, DRIVER_MODESET)) { + ret = drm_modeset_register_all(dev); + if (ret) + goto err_unload; + } + drm_panic_register(dev); + drm_client_sysrq_register(dev); - DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n", + DRM_INFO("Initialized %s %d.%d.%d for %s on minor %d\n", driver->name, driver->major, driver->minor, - driver->patchlevel, driver->date, + driver->patchlevel, dev->dev ? dev_name(dev->dev) : "virtual device", dev->primary ? dev->primary->index : dev->accel->index); goto out_unlock; +err_unload: + if (dev->driver->unload) + dev->driver->unload(dev); err_minors: remove_compat_control_link(dev); drm_minor_unregister(dev, DRM_MINOR_ACCEL); @@ -967,7 +1132,9 @@ EXPORT_SYMBOL(drm_dev_register); * * Unregister the DRM device from the system. This does the reverse of * drm_dev_register() but does not deallocate the device. The caller must call - * drm_dev_put() to drop their final reference. + * drm_dev_put() to drop their final reference, unless it is managed with devres + * (as devices allocated with devm_drm_dev_alloc() are), in which case there is + * already an unwind action registered. * * A special form of unregistering for hotpluggable devices is drm_dev_unplug(), * which can be called while there are still open users of @dev. @@ -977,11 +1144,11 @@ EXPORT_SYMBOL(drm_dev_register); */ void drm_dev_unregister(struct drm_device *dev) { - if (drm_core_check_feature(dev, DRIVER_LEGACY)) - drm_lastclose(dev); - dev->registered = false; + drm_client_sysrq_unregister(dev); + drm_panic_unregister(dev); + drm_client_dev_unregister(dev); if (drm_core_check_feature(dev, DRIVER_MODESET)) @@ -990,36 +1157,14 @@ void drm_dev_unregister(struct drm_device *dev) if (dev->driver->unload) dev->driver->unload(dev); - drm_legacy_pci_agp_destroy(dev); - drm_legacy_rmmaps(dev); - remove_compat_control_link(dev); drm_minor_unregister(dev, DRM_MINOR_ACCEL); drm_minor_unregister(dev, DRM_MINOR_PRIMARY); drm_minor_unregister(dev, DRM_MINOR_RENDER); + drm_debugfs_dev_fini(dev); } EXPORT_SYMBOL(drm_dev_unregister); -/** - * drm_dev_set_unique - Set the unique name of a DRM device - * @dev: device of which to set the unique name - * @name: unique name - * - * Sets the unique name of a DRM device using the specified string. This is - * already done by drm_dev_init(), drivers should only override the default - * unique name for backwards compatibility reasons. - * - * Return: 0 on success or a negative error code on failure. - */ -int drm_dev_set_unique(struct drm_device *dev, const char *name) -{ - drmm_kfree(dev, dev->unique); - dev->unique = drmm_kstrdup(dev, name, GFP_KERNEL); - - return dev->unique ? 0 : -ENOMEM; -} -EXPORT_SYMBOL(drm_dev_set_unique); - /* * DRM Core * The DRM core module initializes all global DRM objects and makes them @@ -1048,7 +1193,7 @@ static int drm_stub_open(struct inode *inode, struct file *filp) DRM_DEBUG("\n"); - minor = drm_minor_acquire(iminor(inode)); + minor = drm_minor_acquire(&drm_minors_xa, iminor(inode)); if (IS_ERR(minor)) return PTR_ERR(minor); @@ -1079,11 +1224,12 @@ static const struct file_operations drm_stub_fops = { static void drm_core_exit(void) { drm_privacy_screen_lookup_exit(); + drm_panic_exit(); accel_core_exit(); unregister_chrdev(DRM_MAJOR, "drm"); - debugfs_remove(drm_debugfs_root); + drm_debugfs_remove_root(); drm_sysfs_destroy(); - idr_destroy(&drm_minors_idr); + WARN_ON(!xa_empty(&drm_minors_xa)); drm_connector_ida_destroy(); } @@ -1092,7 +1238,6 @@ static int __init drm_core_init(void) int ret; drm_connector_ida_init(); - idr_init(&drm_minors_idr); drm_memcpy_init_early(); ret = drm_sysfs_init(); @@ -1101,7 +1246,8 @@ static int __init drm_core_init(void) goto error; } - drm_debugfs_root = debugfs_create_dir("dri", NULL); + drm_debugfs_init_root(); + drm_debugfs_bridge_params(); ret = register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops); if (ret < 0) @@ -1111,6 +1257,8 @@ static int __init drm_core_init(void) if (ret < 0) goto error; + drm_panic_init(); + drm_privacy_screen_lookup_init(); drm_core_init_complete = true; |