From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/gpu/drm/nouveau/nvkm/core/ioctl.c | 526 ++++++++++++++++++++++++++++++ 1 file changed, 526 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/core/ioctl.c (limited to 'drivers/gpu/drm/nouveau/nvkm/core/ioctl.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/core/ioctl.c b/drivers/gpu/drm/nouveau/nvkm/core/ioctl.c new file mode 100644 index 000000000..4459ff5f4 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/core/ioctl.c @@ -0,0 +1,526 @@ +/* + * Copyright 2014 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ +#include +#include +#include +#include +#include + +#include +#include + +static int +nvkm_ioctl_nop(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + union { + struct nvif_ioctl_nop none; + } *args = data; + int ret; + + nv_ioctl(object, "nop size %d\n", size); + if (nvif_unvers(args->none)) { + nv_ioctl(object, "nop\n"); + } + + return ret; +} + +static int +nvkm_ioctl_sclass(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + union { + struct nvif_ioctl_sclass_v0 v0; + } *args = data; + int ret; + + if (!nv_iclass(object, NV_PARENT_CLASS)) { + nv_debug(object, "cannot have children (sclass)\n"); + return -ENODEV; + } + + nv_ioctl(object, "sclass size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, true)) { + nv_ioctl(object, "sclass vers %d count %d\n", + args->v0.version, args->v0.count); + if (size == args->v0.count * sizeof(args->v0.oclass[0])) { + ret = nvkm_parent_lclass(object, args->v0.oclass, + args->v0.count); + if (ret >= 0) { + args->v0.count = ret; + ret = 0; + } + } else { + ret = -EINVAL; + } + } + + return ret; +} + +static int +nvkm_ioctl_new(struct nvkm_handle *handle, void *data, u32 size) +{ + union { + struct nvif_ioctl_new_v0 v0; + } *args = data; + struct nvkm_client *client = nvkm_client(handle->object); + struct nvkm_object *engctx = NULL; + struct nvkm_object *object = NULL; + struct nvkm_parent *parent; + struct nvkm_object *engine; + struct nvkm_oclass *oclass; + u32 _handle, _oclass; + int ret; + + nv_ioctl(client, "new size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, true)) { + _handle = args->v0.handle; + _oclass = args->v0.oclass; + } else + return ret; + + nv_ioctl(client, "new vers %d handle %08x class %08x " + "route %02x token %llx\n", + args->v0.version, _handle, _oclass, + args->v0.route, args->v0.token); + + if (!nv_iclass(handle->object, NV_PARENT_CLASS)) { + nv_debug(handle->object, "cannot have children (ctor)\n"); + ret = -ENODEV; + goto fail_class; + } + + parent = nv_parent(handle->object); + + /* check that parent supports the requested subclass */ + ret = nvkm_parent_sclass(&parent->object, _oclass, &engine, &oclass); + if (ret) { + nv_debug(parent, "illegal class 0x%04x\n", _oclass); + goto fail_class; + } + + /* make sure engine init has been completed *before* any objects + * it controls are created - the constructors may depend on + * state calculated at init (ie. default context construction) + */ + if (engine) { + ret = nvkm_object_inc(engine); + if (ret) + goto fail_class; + } + + /* if engine requires it, create a context object to insert + * between the parent and its children (eg. PGRAPH context) + */ + if (engine && nv_engine(engine)->cclass) { + ret = nvkm_object_ctor(&parent->object, engine, + nv_engine(engine)->cclass, + data, size, &engctx); + if (ret) + goto fail_engctx; + } else { + nvkm_object_ref(&parent->object, &engctx); + } + + /* finally, create new object and bind it to its handle */ + ret = nvkm_object_ctor(engctx, engine, oclass, data, size, &object); + client->data = object; + if (ret) + goto fail_ctor; + + ret = nvkm_object_inc(object); + if (ret) + goto fail_init; + + ret = nvkm_handle_create(&parent->object, handle->name, + _handle, object, &handle); + if (ret) + goto fail_handle; + + ret = nvkm_handle_init(handle); + handle->route = args->v0.route; + handle->token = args->v0.token; + if (ret) + nvkm_handle_destroy(handle); + +fail_handle: + nvkm_object_dec(object, false); +fail_init: + nvkm_object_ref(NULL, &object); +fail_ctor: + nvkm_object_ref(NULL, &engctx); +fail_engctx: + if (engine) + nvkm_object_dec(engine, false); +fail_class: + return ret; +} + +static int +nvkm_ioctl_del(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + union { + struct nvif_ioctl_del none; + } *args = data; + int ret; + + nv_ioctl(object, "delete size %d\n", size); + if (nvif_unvers(args->none)) { + nv_ioctl(object, "delete\n"); + nvkm_handle_fini(handle, false); + nvkm_handle_destroy(handle); + } + + return ret; +} + +static int +nvkm_ioctl_mthd(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + struct nvkm_ofuncs *ofuncs = object->oclass->ofuncs; + union { + struct nvif_ioctl_mthd_v0 v0; + } *args = data; + int ret; + + nv_ioctl(object, "mthd size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, true)) { + nv_ioctl(object, "mthd vers %d mthd %02x\n", + args->v0.version, args->v0.method); + if (ret = -ENODEV, ofuncs->mthd) + ret = ofuncs->mthd(object, args->v0.method, data, size); + } + + return ret; +} + + +static int +nvkm_ioctl_rd(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + struct nvkm_ofuncs *ofuncs = object->oclass->ofuncs; + union { + struct nvif_ioctl_rd_v0 v0; + } *args = data; + int ret; + + nv_ioctl(object, "rd size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "rd vers %d size %d addr %016llx\n", + args->v0.version, args->v0.size, args->v0.addr); + switch (args->v0.size) { + case 1: + if (ret = -ENODEV, ofuncs->rd08) { + args->v0.data = nv_ro08(object, args->v0.addr); + ret = 0; + } + break; + case 2: + if (ret = -ENODEV, ofuncs->rd16) { + args->v0.data = nv_ro16(object, args->v0.addr); + ret = 0; + } + break; + case 4: + if (ret = -ENODEV, ofuncs->rd32) { + args->v0.data = nv_ro32(object, args->v0.addr); + ret = 0; + } + break; + default: + ret = -EINVAL; + break; + } + } + + return ret; +} + +static int +nvkm_ioctl_wr(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + struct nvkm_ofuncs *ofuncs = object->oclass->ofuncs; + union { + struct nvif_ioctl_wr_v0 v0; + } *args = data; + int ret; + + nv_ioctl(object, "wr size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "wr vers %d size %d addr %016llx data %08x\n", + args->v0.version, args->v0.size, args->v0.addr, + args->v0.data); + switch (args->v0.size) { + case 1: + if (ret = -ENODEV, ofuncs->wr08) { + nv_wo08(object, args->v0.addr, args->v0.data); + ret = 0; + } + break; + case 2: + if (ret = -ENODEV, ofuncs->wr16) { + nv_wo16(object, args->v0.addr, args->v0.data); + ret = 0; + } + break; + case 4: + if (ret = -ENODEV, ofuncs->wr32) { + nv_wo32(object, args->v0.addr, args->v0.data); + ret = 0; + } + break; + default: + ret = -EINVAL; + break; + } + } + + return ret; +} + +static int +nvkm_ioctl_map(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + struct nvkm_ofuncs *ofuncs = object->oclass->ofuncs; + union { + struct nvif_ioctl_map_v0 v0; + } *args = data; + int ret; + + nv_ioctl(object, "map size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "map vers %d\n", args->v0.version); + if (ret = -ENODEV, ofuncs->map) { + ret = ofuncs->map(object, &args->v0.handle, + &args->v0.length); + } + } + + return ret; +} + +static int +nvkm_ioctl_unmap(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + union { + struct nvif_ioctl_unmap none; + } *args = data; + int ret; + + nv_ioctl(object, "unmap size %d\n", size); + if (nvif_unvers(args->none)) { + nv_ioctl(object, "unmap\n"); + } + + return ret; +} + +static int +nvkm_ioctl_ntfy_new(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_object *object = handle->object; + struct nvkm_ofuncs *ofuncs = object->oclass->ofuncs; + union { + struct nvif_ioctl_ntfy_new_v0 v0; + } *args = data; + struct nvkm_event *event; + int ret; + + nv_ioctl(object, "ntfy new size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, true)) { + nv_ioctl(object, "ntfy new vers %d event %02x\n", + args->v0.version, args->v0.event); + if (ret = -ENODEV, ofuncs->ntfy) + ret = ofuncs->ntfy(object, args->v0.event, &event); + if (ret == 0) { + ret = nvkm_client_notify_new(object, event, data, size); + if (ret >= 0) { + args->v0.index = ret; + ret = 0; + } + } + } + + return ret; +} + +static int +nvkm_ioctl_ntfy_del(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_client *client = nvkm_client(handle->object); + struct nvkm_object *object = handle->object; + union { + struct nvif_ioctl_ntfy_del_v0 v0; + } *args = data; + int ret; + + nv_ioctl(object, "ntfy del size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "ntfy del vers %d index %d\n", + args->v0.version, args->v0.index); + ret = nvkm_client_notify_del(client, args->v0.index); + } + + return ret; +} + +static int +nvkm_ioctl_ntfy_get(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_client *client = nvkm_client(handle->object); + struct nvkm_object *object = handle->object; + union { + struct nvif_ioctl_ntfy_get_v0 v0; + } *args = data; + int ret; + + nv_ioctl(object, "ntfy get size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "ntfy get vers %d index %d\n", + args->v0.version, args->v0.index); + ret = nvkm_client_notify_get(client, args->v0.index); + } + + return ret; +} + +static int +nvkm_ioctl_ntfy_put(struct nvkm_handle *handle, void *data, u32 size) +{ + struct nvkm_client *client = nvkm_client(handle->object); + struct nvkm_object *object = handle->object; + union { + struct nvif_ioctl_ntfy_put_v0 v0; + } *args = data; + int ret; + + nv_ioctl(object, "ntfy put size %d\n", size); + if (nvif_unpack(args->v0, 0, 0, false)) { + nv_ioctl(object, "ntfy put vers %d index %d\n", + args->v0.version, args->v0.index); + ret = nvkm_client_notify_put(client, args->v0.index); + } + + return ret; +} + +static struct { + int version; + int (*func)(struct nvkm_handle *, void *, u32); +} +nvkm_ioctl_v0[] = { + { 0x00, nvkm_ioctl_nop }, + { 0x00, nvkm_ioctl_sclass }, + { 0x00, nvkm_ioctl_new }, + { 0x00, nvkm_ioctl_del }, + { 0x00, nvkm_ioctl_mthd }, + { 0x00, nvkm_ioctl_rd }, + { 0x00, nvkm_ioctl_wr }, + { 0x00, nvkm_ioctl_map }, + { 0x00, nvkm_ioctl_unmap }, + { 0x00, nvkm_ioctl_ntfy_new }, + { 0x00, nvkm_ioctl_ntfy_del }, + { 0x00, nvkm_ioctl_ntfy_get }, + { 0x00, nvkm_ioctl_ntfy_put }, +}; + +static int +nvkm_ioctl_path(struct nvkm_handle *parent, u32 type, u32 nr, u32 *path, + void *data, u32 size, u8 owner, u8 *route, u64 *token) +{ + struct nvkm_handle *handle = parent; + struct nvkm_namedb *namedb; + struct nvkm_object *object; + int ret; + + while ((object = parent->object), nr--) { + nv_ioctl(object, "path 0x%08x\n", path[nr]); + if (!nv_iclass(object, NV_PARENT_CLASS)) { + nv_debug(object, "cannot have children (path)\n"); + return -EINVAL; + } + + if (!(namedb = (void *)nv_pclass(object, NV_NAMEDB_CLASS)) || + !(handle = nvkm_namedb_get(namedb, path[nr]))) { + nv_debug(object, "handle 0x%08x not found\n", path[nr]); + return -ENOENT; + } + nvkm_namedb_put(handle); + parent = handle; + } + + if (owner != NVIF_IOCTL_V0_OWNER_ANY && owner != handle->route) { + nv_ioctl(object, "object route != owner\n"); + return -EACCES; + } + *route = handle->route; + *token = handle->token; + + if (ret = -EINVAL, type < ARRAY_SIZE(nvkm_ioctl_v0)) { + if (nvkm_ioctl_v0[type].version == 0) + ret = nvkm_ioctl_v0[type].func(handle, data, size); + } + + return ret; +} + +int +nvkm_ioctl(struct nvkm_client *client, bool supervisor, + void *data, u32 size, void **hack) +{ + union { + struct nvif_ioctl_v0 v0; + } *args = data; + int ret; + + client->super = supervisor; + nv_ioctl(client, "size %d\n", size); + + if (nvif_unpack(args->v0, 0, 0, true)) { + nv_ioctl(client, "vers %d type %02x path %d owner %02x\n", + args->v0.version, args->v0.type, args->v0.path_nr, + args->v0.owner); + ret = nvkm_ioctl_path(client->root, args->v0.type, + args->v0.path_nr, args->v0.path, + data, size, args->v0.owner, + &args->v0.route, &args->v0.token); + } + + nv_ioctl(client, "return %d\n", ret); + if (hack) { + *hack = client->data; + client->data = NULL; + } + + client->super = false; + return ret; +} -- cgit v1.2.3-54-g00ecf