diff options
author | Ben Skeggs <bskeggs@redhat.com> | 2015-08-20 14:54:15 +1000 |
---|---|---|
committer | Ben Skeggs <bskeggs@redhat.com> | 2015-08-28 12:40:32 +1000 |
commit | a01ca78c8f118e5a24f1527ecf078ab56ddd4805 (patch) | |
tree | 34ccaf8913fcdf3a9be2794b27a30a52e8449bb0 /drivers/gpu/drm/nouveau/nvif | |
parent | 4e7e62d607a711bc8e8576a0fc7d8f242d25c9b3 (diff) |
drm/nouveau/nvif: simplify and tidy library interfaces
A variety of tweaks to the NVIF library interfaces, mostly ripping out
things that turned out to be not so useful.
- Removed refcounting from nvif_object, callers are expected to not be
stupid instead.
- nvif_client is directly reachable from anything derived from nvif_object,
removing the need for heuristics to locate it
- _new() versions of interfaces, that allocate memory for the object
they construct, have been removed. The vast majority of callers used
the embedded _init() interfaces.
- No longer storing constructor arguments (and the data returned from
nvkm) inside nvif_object, it's more or less unused and just wastes
memory.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvif')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvif/client.c | 61 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nvif/device.c | 45 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nvif/notify.c | 49 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/nvif/object.c | 135 |
4 files changed, 68 insertions, 222 deletions
diff --git a/drivers/gpu/drm/nouveau/nvif/client.c b/drivers/gpu/drm/nouveau/nvif/client.c index 80b96844221e..4a830ebf9661 100644 --- a/drivers/gpu/drm/nouveau/nvif/client.c +++ b/drivers/gpu/drm/nouveau/nvif/client.c @@ -29,29 +29,30 @@ int nvif_client_ioctl(struct nvif_client *client, void *data, u32 size) { - return client->driver->ioctl(client->base.priv, client->super, data, size, NULL); + return client->driver->ioctl(client->object.priv, client->super, data, size, NULL); } int nvif_client_suspend(struct nvif_client *client) { - return client->driver->suspend(client->base.priv); + return client->driver->suspend(client->object.priv); } int nvif_client_resume(struct nvif_client *client) { - return client->driver->resume(client->base.priv); + return client->driver->resume(client->object.priv); } void nvif_client_fini(struct nvif_client *client) { if (client->driver) { - client->driver->fini(client->base.priv); + client->driver->fini(client->object.priv); client->driver = NULL; - client->base.parent = NULL; - nvif_object_fini(&client->base); + client->object.parent = NULL; + client->object.client = NULL; + nvif_object_fini(&client->object); } } @@ -68,25 +69,25 @@ nvif_drivers[] = { }; int -nvif_client_init(void (*dtor)(struct nvif_client *), const char *driver, - const char *name, u64 device, const char *cfg, const char *dbg, - struct nvif_client *client) +nvif_client_init(const char *driver, const char *name, u64 device, + const char *cfg, const char *dbg, struct nvif_client *client) { int ret, i; - ret = nvif_object_init(NULL, (void*)dtor, 0, 0, NULL, 0, &client->base); + ret = nvif_object_init(NULL, 0, 0, NULL, 0, &client->object); if (ret) return ret; - client->base.parent = &client->base; - client->base.handle = ~0; - client->object = &client->base; + client->object.client = client; + client->object.parent = &client->object; + client->object.handle = ~0; + client->route = NVIF_IOCTL_V0_ROUTE_NVIF; client->super = true; for (i = 0, ret = -EINVAL; (client->driver = nvif_drivers[i]); i++) { if (!driver || !strcmp(client->driver->name, driver)) { ret = client->driver->init(name, device, cfg, dbg, - &client->base.priv); + &client->object.priv); if (!ret || driver) break; } @@ -96,35 +97,3 @@ nvif_client_init(void (*dtor)(struct nvif_client *), const char *driver, nvif_client_fini(client); return ret; } - -static void -nvif_client_del(struct nvif_client *client) -{ - nvif_client_fini(client); - kfree(client); -} - -int -nvif_client_new(const char *driver, const char *name, u64 device, - const char *cfg, const char *dbg, - struct nvif_client **pclient) -{ - struct nvif_client *client = kzalloc(sizeof(*client), GFP_KERNEL); - if (client) { - int ret = nvif_client_init(nvif_client_del, driver, name, - device, cfg, dbg, client); - if (ret) { - kfree(client); - client = NULL; - } - *pclient = client; - return ret; - } - return -ENOMEM; -} - -void -nvif_client_ref(struct nvif_client *client, struct nvif_client **pclient) -{ - nvif_object_ref(&client->base, (struct nvif_object **)pclient); -} diff --git a/drivers/gpu/drm/nouveau/nvif/device.c b/drivers/gpu/drm/nouveau/nvif/device.c index 837442c69a5d..f15d51a69df2 100644 --- a/drivers/gpu/drm/nouveau/nvif/device.c +++ b/drivers/gpu/drm/nouveau/nvif/device.c @@ -33,52 +33,19 @@ nvif_device_time(struct nvif_device *device) void nvif_device_fini(struct nvif_device *device) { - nvif_object_fini(&device->base); + nvif_object_fini(&device->object); } int -nvif_device_init(struct nvif_object *parent, void (*dtor)(struct nvif_device *), - u32 handle, u32 oclass, void *data, u32 size, - struct nvif_device *device) +nvif_device_init(struct nvif_object *parent, u32 handle, u32 oclass, + void *data, u32 size, struct nvif_device *device) { - int ret = nvif_object_init(parent, (void *)dtor, handle, oclass, - data, size, &device->base); + int ret = nvif_object_init(parent, handle, oclass, data, size, + &device->object); if (ret == 0) { - device->object = &device->base; device->info.version = 0; - ret = nvif_object_mthd(&device->base, NV_DEVICE_V0_INFO, + ret = nvif_object_mthd(&device->object, NV_DEVICE_V0_INFO, &device->info, sizeof(device->info)); } return ret; } - -static void -nvif_device_del(struct nvif_device *device) -{ - nvif_device_fini(device); - kfree(device); -} - -int -nvif_device_new(struct nvif_object *parent, u32 handle, u32 oclass, - void *data, u32 size, struct nvif_device **pdevice) -{ - struct nvif_device *device = kzalloc(sizeof(*device), GFP_KERNEL); - if (device) { - int ret = nvif_device_init(parent, nvif_device_del, handle, - oclass, data, size, device); - if (ret) { - kfree(device); - device = NULL; - } - *pdevice = device; - return ret; - } - return -ENOMEM; -} - -void -nvif_device_ref(struct nvif_device *device, struct nvif_device **pdevice) -{ - nvif_object_ref(&device->base, (struct nvif_object **)pdevice); -} diff --git a/drivers/gpu/drm/nouveau/nvif/notify.c b/drivers/gpu/drm/nouveau/nvif/notify.c index 8e34748709a0..b0787ff833ef 100644 --- a/drivers/gpu/drm/nouveau/nvif/notify.c +++ b/drivers/gpu/drm/nouveau/nvif/notify.c @@ -124,7 +124,7 @@ nvif_notify(const void *header, u32 length, const void *data, u32 size) } if (!WARN_ON(notify == NULL)) { - struct nvif_client *client = nvif_client(notify->object); + struct nvif_client *client = notify->object->client; if (!WARN_ON(notify->size != size)) { atomic_inc(¬ify->putcnt); if (test_bit(NVIF_NOTIFY_WORK, ¬ify->flags)) { @@ -156,7 +156,7 @@ nvif_notify_fini(struct nvif_notify *notify) if (ret >= 0 && object) { ret = nvif_object_ioctl(object, &args, sizeof(args), NULL); if (ret == 0) { - nvif_object_ref(NULL, ¬ify->object); + notify->object = NULL; kfree((void *)notify->data); } } @@ -164,9 +164,9 @@ nvif_notify_fini(struct nvif_notify *notify) } int -nvif_notify_init(struct nvif_object *object, void (*dtor)(struct nvif_notify *), - int (*func)(struct nvif_notify *), bool work, u8 event, - void *data, u32 size, u32 reply, struct nvif_notify *notify) +nvif_notify_init(struct nvif_object *object, int (*func)(struct nvif_notify *), + bool work, u8 event, void *data, u32 size, u32 reply, + struct nvif_notify *notify) { struct { struct nvif_ioctl_v0 ioctl; @@ -175,11 +175,9 @@ nvif_notify_init(struct nvif_object *object, void (*dtor)(struct nvif_notify *), } *args; int ret = -ENOMEM; - notify->object = NULL; - nvif_object_ref(object, ¬ify->object); + notify->object = object; notify->flags = 0; atomic_set(¬ify->putcnt, 1); - notify->dtor = dtor; notify->func = func; notify->data = NULL; notify->size = reply; @@ -211,38 +209,3 @@ done: nvif_notify_fini(notify); return ret; } - -static void -nvif_notify_del(struct nvif_notify *notify) -{ - nvif_notify_fini(notify); - kfree(notify); -} - -void -nvif_notify_ref(struct nvif_notify *notify, struct nvif_notify **pnotify) -{ - BUG_ON(notify != NULL); - if (*pnotify) - (*pnotify)->dtor(*pnotify); - *pnotify = notify; -} - -int -nvif_notify_new(struct nvif_object *object, int (*func)(struct nvif_notify *), - bool work, u8 type, void *data, u32 size, u32 reply, - struct nvif_notify **pnotify) -{ - struct nvif_notify *notify = kzalloc(sizeof(*notify), GFP_KERNEL); - if (notify) { - int ret = nvif_notify_init(object, nvif_notify_del, func, work, - type, data, size, reply, notify); - if (ret) { - kfree(notify); - notify = NULL; - } - *pnotify = notify; - return ret; - } - return -ENOMEM; -} diff --git a/drivers/gpu/drm/nouveau/nvif/object.c b/drivers/gpu/drm/nouveau/nvif/object.c index 3ab4e2f8cc12..a727f72ca234 100644 --- a/drivers/gpu/drm/nouveau/nvif/object.c +++ b/drivers/gpu/drm/nouveau/nvif/object.c @@ -30,7 +30,7 @@ int nvif_object_ioctl(struct nvif_object *object, void *data, u32 size, void **hack) { - struct nvif_client *client = nvif_client(object); + struct nvif_client *client = object->client; union { struct nvif_ioctl_v0 v0; } *args = data; @@ -47,7 +47,8 @@ nvif_object_ioctl(struct nvif_object *object, void *data, u32 size, void **hack) } else return -ENOSYS; - return client->driver->ioctl(client->base.priv, client->super, data, size, hack); + return client->driver->ioctl(client->object.priv, client->super, + data, size, hack); } int @@ -145,7 +146,7 @@ void nvif_object_unmap(struct nvif_object *object) { if (object->map.size) { - struct nvif_client *client = nvif_client(object); + struct nvif_client *client = object->client; struct { struct nvif_ioctl_v0 ioctl; struct nvif_ioctl_unmap unmap; @@ -167,7 +168,7 @@ nvif_object_unmap(struct nvif_object *object) int nvif_object_map(struct nvif_object *object) { - struct nvif_client *client = nvif_client(object); + struct nvif_client *client = object->client; struct { struct nvif_ioctl_v0 ioctl; struct nvif_ioctl_map_v0 map; @@ -186,119 +187,65 @@ nvif_object_map(struct nvif_object *object) return ret; } -struct ctor { - struct nvif_ioctl_v0 ioctl; - struct nvif_ioctl_new_v0 new; -}; - void nvif_object_fini(struct nvif_object *object) { - struct ctor *ctor = container_of(object->data, typeof(*ctor), new.data); - if (object->parent) { - struct { - struct nvif_ioctl_v0 ioctl; - struct nvif_ioctl_del del; - } args = { - .ioctl.type = NVIF_IOCTL_V0_DEL, - }; + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_del del; + } args = { + .ioctl.type = NVIF_IOCTL_V0_DEL, + }; - nvif_object_unmap(object); - nvif_object_ioctl(object, &args, sizeof(args), NULL); - if (object->data) { - object->size = 0; - object->data = NULL; - kfree(ctor); - } - nvif_object_ref(NULL, &object->parent); - } + if (!object->client) + return; + + nvif_object_unmap(object); + nvif_object_ioctl(object, &args, sizeof(args), NULL); + object->client = NULL; } int -nvif_object_init(struct nvif_object *parent, void (*dtor)(struct nvif_object *), - u32 handle, u32 oclass, void *data, u32 size, - struct nvif_object *object) +nvif_object_init(struct nvif_object *parent, u32 handle, u32 oclass, + void *data, u32 size, struct nvif_object *object) { - struct ctor *ctor; + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_new_v0 new; + } *args; int ret = 0; - object->parent = NULL; - object->object = object; - nvif_object_ref(parent, &object->parent); - kref_init(&object->refcount); + object->client = NULL; + object->parent = parent; object->handle = handle; object->oclass = oclass; - object->data = NULL; - object->size = 0; - object->dtor = dtor; object->map.ptr = NULL; object->map.size = 0; if (object->parent) { - if (!(ctor = kmalloc(sizeof(*ctor) + size, GFP_KERNEL))) { + if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL))) { nvif_object_fini(object); return -ENOMEM; } - object->data = ctor->new.data; - object->size = size; - memcpy(object->data, data, size); - ctor->ioctl.version = 0; - ctor->ioctl.type = NVIF_IOCTL_V0_NEW; - ctor->new.version = 0; - ctor->new.route = NVIF_IOCTL_V0_ROUTE_NVIF; - ctor->new.token = (unsigned long)(void *)object; - ctor->new.handle = handle; - ctor->new.oclass = oclass; - - ret = nvif_object_ioctl(parent, ctor, sizeof(*ctor) + - object->size, &object->priv); + args->ioctl.version = 0; + args->ioctl.type = NVIF_IOCTL_V0_NEW; + args->new.version = 0; + args->new.route = parent->client->route; + args->new.token = (unsigned long)(void *)object; + args->new.handle = handle; + args->new.oclass = oclass; + + memcpy(args->new.data, data, size); + ret = nvif_object_ioctl(parent, args, sizeof(*args) + size, + &object->priv); + memcpy(data, args->new.data, size); + kfree(args); + if (ret == 0) + object->client = parent->client; } if (ret) nvif_object_fini(object); return ret; } - -static void -nvif_object_del(struct nvif_object *object) -{ - nvif_object_fini(object); - kfree(object); -} - -int -nvif_object_new(struct nvif_object *parent, u32 handle, u32 oclass, - void *data, u32 size, struct nvif_object **pobject) -{ - struct nvif_object *object = kzalloc(sizeof(*object), GFP_KERNEL); - if (object) { - int ret = nvif_object_init(parent, nvif_object_del, handle, - oclass, data, size, object); - if (ret) { - kfree(object); - object = NULL; - } - *pobject = object; - return ret; - } - return -ENOMEM; -} - -static void -nvif_object_put(struct kref *kref) -{ - struct nvif_object *object = - container_of(kref, typeof(*object), refcount); - object->dtor(object); -} - -void -nvif_object_ref(struct nvif_object *object, struct nvif_object **pobject) -{ - if (object) - kref_get(&object->refcount); - if (*pobject) - kref_put(&(*pobject)->refcount, nvif_object_put); - *pobject = object; -} |