127111a23SBen Skeggs /* 227111a23SBen Skeggs * Copyright 2014 Red Hat Inc. 327111a23SBen Skeggs * 427111a23SBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining a 527111a23SBen Skeggs * copy of this software and associated documentation files (the "Software"), 627111a23SBen Skeggs * to deal in the Software without restriction, including without limitation 727111a23SBen Skeggs * the rights to use, copy, modify, merge, publish, distribute, sublicense, 827111a23SBen Skeggs * and/or sell copies of the Software, and to permit persons to whom the 927111a23SBen Skeggs * Software is furnished to do so, subject to the following conditions: 1027111a23SBen Skeggs * 1127111a23SBen Skeggs * The above copyright notice and this permission notice shall be included in 1227111a23SBen Skeggs * all copies or substantial portions of the Software. 1327111a23SBen Skeggs * 1427111a23SBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1527111a23SBen Skeggs * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1627111a23SBen Skeggs * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 1727111a23SBen Skeggs * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 1827111a23SBen Skeggs * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 1927111a23SBen Skeggs * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 2027111a23SBen Skeggs * OTHER DEALINGS IN THE SOFTWARE. 2127111a23SBen Skeggs * 2227111a23SBen Skeggs * Authors: Ben Skeggs <bskeggs@redhat.com> 2327111a23SBen Skeggs */ 2427111a23SBen Skeggs 254dc28134SBen Skeggs #include "nouveau_drv.h" 2627111a23SBen Skeggs #include "nouveau_usif.h" 272621a416SBen Skeggs #include "nouveau_abi16.h" 2827111a23SBen Skeggs 2927111a23SBen Skeggs #include <nvif/notify.h> 3027111a23SBen Skeggs #include <nvif/unpack.h> 3127111a23SBen Skeggs #include <nvif/client.h> 3227111a23SBen Skeggs #include <nvif/event.h> 3327111a23SBen Skeggs #include <nvif/ioctl.h> 3427111a23SBen Skeggs 3527111a23SBen Skeggs struct usif_notify_p { 3627111a23SBen Skeggs struct drm_pending_event base; 3727111a23SBen Skeggs struct { 3827111a23SBen Skeggs struct drm_event base; 3927111a23SBen Skeggs u8 data[]; 4027111a23SBen Skeggs } e; 4127111a23SBen Skeggs }; 4227111a23SBen Skeggs 4327111a23SBen Skeggs struct usif_notify { 4427111a23SBen Skeggs struct list_head head; 4527111a23SBen Skeggs atomic_t enabled; 4627111a23SBen Skeggs u32 handle; 4727111a23SBen Skeggs u16 reply; 4827111a23SBen Skeggs u8 route; 4927111a23SBen Skeggs u64 token; 5027111a23SBen Skeggs struct usif_notify_p *p; 5127111a23SBen Skeggs }; 5227111a23SBen Skeggs 5327111a23SBen Skeggs static inline struct usif_notify * 5427111a23SBen Skeggs usif_notify_find(struct drm_file *filp, u32 handle) 5527111a23SBen Skeggs { 5627111a23SBen Skeggs struct nouveau_cli *cli = nouveau_cli(filp); 5727111a23SBen Skeggs struct usif_notify *ntfy; 5827111a23SBen Skeggs list_for_each_entry(ntfy, &cli->notifys, head) { 5927111a23SBen Skeggs if (ntfy->handle == handle) 6027111a23SBen Skeggs return ntfy; 6127111a23SBen Skeggs } 6227111a23SBen Skeggs return NULL; 6327111a23SBen Skeggs } 6427111a23SBen Skeggs 6527111a23SBen Skeggs static inline void 6627111a23SBen Skeggs usif_notify_dtor(struct usif_notify *ntfy) 6727111a23SBen Skeggs { 6827111a23SBen Skeggs list_del(&ntfy->head); 6927111a23SBen Skeggs kfree(ntfy); 7027111a23SBen Skeggs } 7127111a23SBen Skeggs 7227111a23SBen Skeggs int 7327111a23SBen Skeggs usif_notify(const void *header, u32 length, const void *data, u32 size) 7427111a23SBen Skeggs { 7527111a23SBen Skeggs struct usif_notify *ntfy = NULL; 7627111a23SBen Skeggs const union { 7727111a23SBen Skeggs struct nvif_notify_rep_v0 v0; 7827111a23SBen Skeggs } *rep = header; 7927111a23SBen Skeggs struct drm_device *dev; 8027111a23SBen Skeggs struct drm_file *filp; 8127111a23SBen Skeggs unsigned long flags; 8227111a23SBen Skeggs 8327111a23SBen Skeggs if (length == sizeof(rep->v0) && rep->v0.version == 0) { 8427111a23SBen Skeggs if (WARN_ON(!(ntfy = (void *)(unsigned long)rep->v0.token))) 8527111a23SBen Skeggs return NVIF_NOTIFY_DROP; 8627111a23SBen Skeggs BUG_ON(rep->v0.route != NVDRM_NOTIFY_USIF); 8727111a23SBen Skeggs } else 8827111a23SBen Skeggs if (WARN_ON(1)) 8927111a23SBen Skeggs return NVIF_NOTIFY_DROP; 9027111a23SBen Skeggs 9127111a23SBen Skeggs if (WARN_ON(!ntfy->p || ntfy->reply != (length + size))) 9227111a23SBen Skeggs return NVIF_NOTIFY_DROP; 9327111a23SBen Skeggs filp = ntfy->p->base.file_priv; 9427111a23SBen Skeggs dev = filp->minor->dev; 9527111a23SBen Skeggs 9627111a23SBen Skeggs memcpy(&ntfy->p->e.data[0], header, length); 9727111a23SBen Skeggs memcpy(&ntfy->p->e.data[length], data, size); 9827111a23SBen Skeggs switch (rep->v0.version) { 9927111a23SBen Skeggs case 0: { 10027111a23SBen Skeggs struct nvif_notify_rep_v0 *rep = (void *)ntfy->p->e.data; 10127111a23SBen Skeggs rep->route = ntfy->route; 10227111a23SBen Skeggs rep->token = ntfy->token; 10327111a23SBen Skeggs } 10427111a23SBen Skeggs break; 10527111a23SBen Skeggs default: 10627111a23SBen Skeggs BUG_ON(1); 10727111a23SBen Skeggs break; 10827111a23SBen Skeggs } 10927111a23SBen Skeggs 11027111a23SBen Skeggs spin_lock_irqsave(&dev->event_lock, flags); 11127111a23SBen Skeggs if (!WARN_ON(filp->event_space < ntfy->p->e.base.length)) { 11227111a23SBen Skeggs list_add_tail(&ntfy->p->base.link, &filp->event_list); 11327111a23SBen Skeggs filp->event_space -= ntfy->p->e.base.length; 11427111a23SBen Skeggs } 11527111a23SBen Skeggs wake_up_interruptible(&filp->event_wait); 11627111a23SBen Skeggs spin_unlock_irqrestore(&dev->event_lock, flags); 11727111a23SBen Skeggs atomic_set(&ntfy->enabled, 0); 11827111a23SBen Skeggs return NVIF_NOTIFY_DROP; 11927111a23SBen Skeggs } 12027111a23SBen Skeggs 12127111a23SBen Skeggs static int 12227111a23SBen Skeggs usif_notify_new(struct drm_file *f, void *data, u32 size, void *argv, u32 argc) 12327111a23SBen Skeggs { 12427111a23SBen Skeggs struct nouveau_cli *cli = nouveau_cli(f); 12527111a23SBen Skeggs struct nvif_client *client = &cli->base; 12627111a23SBen Skeggs union { 12727111a23SBen Skeggs struct nvif_ioctl_ntfy_new_v0 v0; 12827111a23SBen Skeggs } *args = data; 12927111a23SBen Skeggs union { 13027111a23SBen Skeggs struct nvif_notify_req_v0 v0; 13127111a23SBen Skeggs } *req; 13227111a23SBen Skeggs struct usif_notify *ntfy; 133f01c4e68SBen Skeggs int ret = -ENOSYS; 13427111a23SBen Skeggs 135f01c4e68SBen Skeggs if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { 13627111a23SBen Skeggs if (usif_notify_find(f, args->v0.index)) 13727111a23SBen Skeggs return -EEXIST; 13827111a23SBen Skeggs } else 13927111a23SBen Skeggs return ret; 14027111a23SBen Skeggs req = data; 141f01c4e68SBen Skeggs ret = -ENOSYS; 14227111a23SBen Skeggs 14327111a23SBen Skeggs if (!(ntfy = kmalloc(sizeof(*ntfy), GFP_KERNEL))) 14427111a23SBen Skeggs return -ENOMEM; 14527111a23SBen Skeggs atomic_set(&ntfy->enabled, 0); 14627111a23SBen Skeggs 147f01c4e68SBen Skeggs if (!(ret = nvif_unpack(ret, &data, &size, req->v0, 0, 0, true))) { 14827111a23SBen Skeggs ntfy->reply = sizeof(struct nvif_notify_rep_v0) + req->v0.reply; 14927111a23SBen Skeggs ntfy->route = req->v0.route; 15027111a23SBen Skeggs ntfy->token = req->v0.token; 15127111a23SBen Skeggs req->v0.route = NVDRM_NOTIFY_USIF; 15227111a23SBen Skeggs req->v0.token = (unsigned long)(void *)ntfy; 15327111a23SBen Skeggs ret = nvif_client_ioctl(client, argv, argc); 15427111a23SBen Skeggs req->v0.token = ntfy->token; 15527111a23SBen Skeggs req->v0.route = ntfy->route; 15627111a23SBen Skeggs ntfy->handle = args->v0.index; 15727111a23SBen Skeggs } 15827111a23SBen Skeggs 15927111a23SBen Skeggs if (ret == 0) 16027111a23SBen Skeggs list_add(&ntfy->head, &cli->notifys); 16127111a23SBen Skeggs if (ret) 16227111a23SBen Skeggs kfree(ntfy); 16327111a23SBen Skeggs return ret; 16427111a23SBen Skeggs } 16527111a23SBen Skeggs 16627111a23SBen Skeggs static int 16727111a23SBen Skeggs usif_notify_del(struct drm_file *f, void *data, u32 size, void *argv, u32 argc) 16827111a23SBen Skeggs { 16927111a23SBen Skeggs struct nouveau_cli *cli = nouveau_cli(f); 17027111a23SBen Skeggs struct nvif_client *client = &cli->base; 17127111a23SBen Skeggs union { 17227111a23SBen Skeggs struct nvif_ioctl_ntfy_del_v0 v0; 17327111a23SBen Skeggs } *args = data; 17427111a23SBen Skeggs struct usif_notify *ntfy; 175f01c4e68SBen Skeggs int ret = -ENOSYS; 17627111a23SBen Skeggs 177f01c4e68SBen Skeggs if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { 17827111a23SBen Skeggs if (!(ntfy = usif_notify_find(f, args->v0.index))) 17927111a23SBen Skeggs return -ENOENT; 18027111a23SBen Skeggs } else 18127111a23SBen Skeggs return ret; 18227111a23SBen Skeggs 18327111a23SBen Skeggs ret = nvif_client_ioctl(client, argv, argc); 18427111a23SBen Skeggs if (ret == 0) 18527111a23SBen Skeggs usif_notify_dtor(ntfy); 18627111a23SBen Skeggs return ret; 18727111a23SBen Skeggs } 18827111a23SBen Skeggs 18927111a23SBen Skeggs static int 19027111a23SBen Skeggs usif_notify_get(struct drm_file *f, void *data, u32 size, void *argv, u32 argc) 19127111a23SBen Skeggs { 19227111a23SBen Skeggs struct nouveau_cli *cli = nouveau_cli(f); 19327111a23SBen Skeggs struct nvif_client *client = &cli->base; 19427111a23SBen Skeggs union { 19527111a23SBen Skeggs struct nvif_ioctl_ntfy_del_v0 v0; 19627111a23SBen Skeggs } *args = data; 19727111a23SBen Skeggs struct usif_notify *ntfy; 198f01c4e68SBen Skeggs int ret = -ENOSYS; 19927111a23SBen Skeggs 200f01c4e68SBen Skeggs if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { 20127111a23SBen Skeggs if (!(ntfy = usif_notify_find(f, args->v0.index))) 20227111a23SBen Skeggs return -ENOENT; 20327111a23SBen Skeggs } else 20427111a23SBen Skeggs return ret; 20527111a23SBen Skeggs 20627111a23SBen Skeggs if (atomic_xchg(&ntfy->enabled, 1)) 20727111a23SBen Skeggs return 0; 20827111a23SBen Skeggs 20927111a23SBen Skeggs ntfy->p = kmalloc(sizeof(*ntfy->p) + ntfy->reply, GFP_KERNEL); 21027111a23SBen Skeggs if (ret = -ENOMEM, !ntfy->p) 21127111a23SBen Skeggs goto done; 21227111a23SBen Skeggs ntfy->p->base.event = &ntfy->p->e.base; 21327111a23SBen Skeggs ntfy->p->base.file_priv = f; 21427111a23SBen Skeggs ntfy->p->base.pid = current->pid; 21527111a23SBen Skeggs ntfy->p->base.destroy =(void(*)(struct drm_pending_event *))kfree; 21627111a23SBen Skeggs ntfy->p->e.base.type = DRM_NOUVEAU_EVENT_NVIF; 21727111a23SBen Skeggs ntfy->p->e.base.length = sizeof(ntfy->p->e.base) + ntfy->reply; 21827111a23SBen Skeggs 21927111a23SBen Skeggs ret = nvif_client_ioctl(client, argv, argc); 22027111a23SBen Skeggs done: 22127111a23SBen Skeggs if (ret) { 22227111a23SBen Skeggs atomic_set(&ntfy->enabled, 0); 22327111a23SBen Skeggs kfree(ntfy->p); 22427111a23SBen Skeggs } 22527111a23SBen Skeggs return ret; 22627111a23SBen Skeggs } 22727111a23SBen Skeggs 22827111a23SBen Skeggs static int 22927111a23SBen Skeggs usif_notify_put(struct drm_file *f, void *data, u32 size, void *argv, u32 argc) 23027111a23SBen Skeggs { 23127111a23SBen Skeggs struct nouveau_cli *cli = nouveau_cli(f); 23227111a23SBen Skeggs struct nvif_client *client = &cli->base; 23327111a23SBen Skeggs union { 23427111a23SBen Skeggs struct nvif_ioctl_ntfy_put_v0 v0; 23527111a23SBen Skeggs } *args = data; 23627111a23SBen Skeggs struct usif_notify *ntfy; 237f01c4e68SBen Skeggs int ret = -ENOSYS; 23827111a23SBen Skeggs 239f01c4e68SBen Skeggs if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { 24027111a23SBen Skeggs if (!(ntfy = usif_notify_find(f, args->v0.index))) 24127111a23SBen Skeggs return -ENOENT; 24227111a23SBen Skeggs } else 24327111a23SBen Skeggs return ret; 24427111a23SBen Skeggs 24527111a23SBen Skeggs ret = nvif_client_ioctl(client, argv, argc); 24627111a23SBen Skeggs if (ret == 0 && atomic_xchg(&ntfy->enabled, 0)) 24727111a23SBen Skeggs kfree(ntfy->p); 24827111a23SBen Skeggs return ret; 24927111a23SBen Skeggs } 25027111a23SBen Skeggs 25127111a23SBen Skeggs struct usif_object { 25227111a23SBen Skeggs struct list_head head; 25327111a23SBen Skeggs struct list_head ntfy; 25427111a23SBen Skeggs u8 route; 25527111a23SBen Skeggs u64 token; 25627111a23SBen Skeggs }; 25727111a23SBen Skeggs 25827111a23SBen Skeggs static void 25927111a23SBen Skeggs usif_object_dtor(struct usif_object *object) 26027111a23SBen Skeggs { 26127111a23SBen Skeggs list_del(&object->head); 26227111a23SBen Skeggs kfree(object); 26327111a23SBen Skeggs } 26427111a23SBen Skeggs 26527111a23SBen Skeggs static int 26627111a23SBen Skeggs usif_object_new(struct drm_file *f, void *data, u32 size, void *argv, u32 argc) 26727111a23SBen Skeggs { 26827111a23SBen Skeggs struct nouveau_cli *cli = nouveau_cli(f); 26927111a23SBen Skeggs struct nvif_client *client = &cli->base; 27027111a23SBen Skeggs union { 27127111a23SBen Skeggs struct nvif_ioctl_new_v0 v0; 27227111a23SBen Skeggs } *args = data; 27327111a23SBen Skeggs struct usif_object *object; 274f01c4e68SBen Skeggs int ret = -ENOSYS; 27527111a23SBen Skeggs 27627111a23SBen Skeggs if (!(object = kmalloc(sizeof(*object), GFP_KERNEL))) 27727111a23SBen Skeggs return -ENOMEM; 27827111a23SBen Skeggs list_add(&object->head, &cli->objects); 27927111a23SBen Skeggs 280f01c4e68SBen Skeggs if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { 28127111a23SBen Skeggs object->route = args->v0.route; 28227111a23SBen Skeggs object->token = args->v0.token; 28327111a23SBen Skeggs args->v0.route = NVDRM_OBJECT_USIF; 28427111a23SBen Skeggs args->v0.token = (unsigned long)(void *)object; 28527111a23SBen Skeggs ret = nvif_client_ioctl(client, argv, argc); 28627111a23SBen Skeggs args->v0.token = object->token; 28727111a23SBen Skeggs args->v0.route = object->route; 28827111a23SBen Skeggs } 28927111a23SBen Skeggs 29027111a23SBen Skeggs if (ret) 29127111a23SBen Skeggs usif_object_dtor(object); 29227111a23SBen Skeggs return ret; 29327111a23SBen Skeggs } 29427111a23SBen Skeggs 29527111a23SBen Skeggs int 29627111a23SBen Skeggs usif_ioctl(struct drm_file *filp, void __user *user, u32 argc) 29727111a23SBen Skeggs { 29827111a23SBen Skeggs struct nouveau_cli *cli = nouveau_cli(filp); 29927111a23SBen Skeggs struct nvif_client *client = &cli->base; 30027111a23SBen Skeggs void *data = kmalloc(argc, GFP_KERNEL); 30127111a23SBen Skeggs u32 size = argc; 30227111a23SBen Skeggs union { 30327111a23SBen Skeggs struct nvif_ioctl_v0 v0; 30427111a23SBen Skeggs } *argv = data; 30527111a23SBen Skeggs struct usif_object *object; 30627111a23SBen Skeggs u8 owner; 30727111a23SBen Skeggs int ret; 30827111a23SBen Skeggs 30927111a23SBen Skeggs if (ret = -ENOMEM, !argv) 31027111a23SBen Skeggs goto done; 31127111a23SBen Skeggs if (ret = -EFAULT, copy_from_user(argv, user, size)) 31227111a23SBen Skeggs goto done; 31327111a23SBen Skeggs 314f01c4e68SBen Skeggs if (!(ret = nvif_unpack(-ENOSYS, &data, &size, argv->v0, 0, 0, true))) { 31527111a23SBen Skeggs /* block access to objects not created via this interface */ 31627111a23SBen Skeggs owner = argv->v0.owner; 317f5e55187SBen Skeggs if (argv->v0.object == 0ULL) 318f5e55187SBen Skeggs argv->v0.owner = NVDRM_OBJECT_ANY; /* except client */ 319f5e55187SBen Skeggs else 32027111a23SBen Skeggs argv->v0.owner = NVDRM_OBJECT_USIF; 32127111a23SBen Skeggs } else 32227111a23SBen Skeggs goto done; 32327111a23SBen Skeggs 3242621a416SBen Skeggs /* USIF slightly abuses some return-only ioctl members in order 3252621a416SBen Skeggs * to provide interoperability with the older ABI16 objects 3262621a416SBen Skeggs */ 32727111a23SBen Skeggs mutex_lock(&cli->mutex); 3282621a416SBen Skeggs if (argv->v0.route) { 3292621a416SBen Skeggs if (ret = -EINVAL, argv->v0.route == 0xff) 3302621a416SBen Skeggs ret = nouveau_abi16_usif(filp, argv, argc); 3312621a416SBen Skeggs if (ret) { 3322621a416SBen Skeggs mutex_unlock(&cli->mutex); 3332621a416SBen Skeggs goto done; 3342621a416SBen Skeggs } 3352621a416SBen Skeggs } 3362621a416SBen Skeggs 33727111a23SBen Skeggs switch (argv->v0.type) { 33827111a23SBen Skeggs case NVIF_IOCTL_V0_NEW: 33927111a23SBen Skeggs ret = usif_object_new(filp, data, size, argv, argc); 34027111a23SBen Skeggs break; 34127111a23SBen Skeggs case NVIF_IOCTL_V0_NTFY_NEW: 34227111a23SBen Skeggs ret = usif_notify_new(filp, data, size, argv, argc); 34327111a23SBen Skeggs break; 34427111a23SBen Skeggs case NVIF_IOCTL_V0_NTFY_DEL: 34527111a23SBen Skeggs ret = usif_notify_del(filp, data, size, argv, argc); 34627111a23SBen Skeggs break; 34727111a23SBen Skeggs case NVIF_IOCTL_V0_NTFY_GET: 34827111a23SBen Skeggs ret = usif_notify_get(filp, data, size, argv, argc); 34927111a23SBen Skeggs break; 35027111a23SBen Skeggs case NVIF_IOCTL_V0_NTFY_PUT: 35127111a23SBen Skeggs ret = usif_notify_put(filp, data, size, argv, argc); 35227111a23SBen Skeggs break; 35327111a23SBen Skeggs default: 35427111a23SBen Skeggs ret = nvif_client_ioctl(client, argv, argc); 35527111a23SBen Skeggs break; 35627111a23SBen Skeggs } 35727111a23SBen Skeggs if (argv->v0.route == NVDRM_OBJECT_USIF) { 35827111a23SBen Skeggs object = (void *)(unsigned long)argv->v0.token; 35927111a23SBen Skeggs argv->v0.route = object->route; 36027111a23SBen Skeggs argv->v0.token = object->token; 36127111a23SBen Skeggs if (ret == 0 && argv->v0.type == NVIF_IOCTL_V0_DEL) { 36227111a23SBen Skeggs list_del(&object->head); 36327111a23SBen Skeggs kfree(object); 36427111a23SBen Skeggs } 36527111a23SBen Skeggs } else { 36627111a23SBen Skeggs argv->v0.route = NVIF_IOCTL_V0_ROUTE_HIDDEN; 36727111a23SBen Skeggs argv->v0.token = 0; 36827111a23SBen Skeggs } 36927111a23SBen Skeggs argv->v0.owner = owner; 37027111a23SBen Skeggs mutex_unlock(&cli->mutex); 37127111a23SBen Skeggs 37227111a23SBen Skeggs if (copy_to_user(user, argv, argc)) 37327111a23SBen Skeggs ret = -EFAULT; 37427111a23SBen Skeggs done: 37527111a23SBen Skeggs kfree(argv); 37627111a23SBen Skeggs return ret; 37727111a23SBen Skeggs } 37827111a23SBen Skeggs 37927111a23SBen Skeggs void 38027111a23SBen Skeggs usif_client_fini(struct nouveau_cli *cli) 38127111a23SBen Skeggs { 38227111a23SBen Skeggs struct usif_object *object, *otemp; 38327111a23SBen Skeggs struct usif_notify *notify, *ntemp; 38427111a23SBen Skeggs 38527111a23SBen Skeggs list_for_each_entry_safe(notify, ntemp, &cli->notifys, head) { 38627111a23SBen Skeggs usif_notify_dtor(notify); 38727111a23SBen Skeggs } 38827111a23SBen Skeggs 38927111a23SBen Skeggs list_for_each_entry_safe(object, otemp, &cli->objects, head) { 39027111a23SBen Skeggs usif_object_dtor(object); 39127111a23SBen Skeggs } 39227111a23SBen Skeggs } 39327111a23SBen Skeggs 39427111a23SBen Skeggs void 39527111a23SBen Skeggs usif_client_init(struct nouveau_cli *cli) 39627111a23SBen Skeggs { 39727111a23SBen Skeggs INIT_LIST_HEAD(&cli->objects); 39827111a23SBen Skeggs INIT_LIST_HEAD(&cli->notifys); 39927111a23SBen Skeggs } 400