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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/core/ioctl.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/core/ioctl.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/core/ioctl.c | 459 |
1 files changed, 459 insertions, 0 deletions
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..45f920da8 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/core/ioctl.c @@ -0,0 +1,459 @@ +/* + * 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 <bskeggs@redhat.com> + */ +#include <core/ioctl.h> +#include <core/client.h> +#include <core/engine.h> +#include <core/event.h> + +#include <nvif/unpack.h> +#include <nvif/ioctl.h> + +static int +nvkm_ioctl_nop(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_nop_v0 v0; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "nop size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { + nvif_ioctl(object, "nop vers %lld\n", args->v0.version); + args->v0.version = NVIF_VERSION_LATEST; + } + + return ret; +} + +static int +nvkm_ioctl_sclass(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_sclass_v0 v0; + } *args = data; + struct nvkm_oclass oclass = { .client = client }; + int ret = -ENOSYS, i = 0; + + nvif_ioctl(object, "sclass size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { + nvif_ioctl(object, "sclass vers %d count %d\n", + args->v0.version, args->v0.count); + if (size != args->v0.count * sizeof(args->v0.oclass[0])) + return -EINVAL; + + while (object->func->sclass && + object->func->sclass(object, i, &oclass) >= 0) { + if (i < args->v0.count) { + args->v0.oclass[i].oclass = oclass.base.oclass; + args->v0.oclass[i].minver = oclass.base.minver; + args->v0.oclass[i].maxver = oclass.base.maxver; + } + i++; + } + + args->v0.count = i; + } + + return ret; +} + +static int +nvkm_ioctl_new(struct nvkm_client *client, + struct nvkm_object *parent, void *data, u32 size) +{ + union { + struct nvif_ioctl_new_v0 v0; + } *args = data; + struct nvkm_object *object = NULL; + struct nvkm_oclass oclass; + int ret = -ENOSYS, i = 0; + + nvif_ioctl(parent, "new size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { + nvif_ioctl(parent, "new vers %d handle %08x class %08x " + "route %02x token %llx object %016llx\n", + args->v0.version, args->v0.handle, args->v0.oclass, + args->v0.route, args->v0.token, args->v0.object); + } else + return ret; + + if (!parent->func->sclass) { + nvif_ioctl(parent, "cannot have children\n"); + return -EINVAL; + } + + do { + memset(&oclass, 0x00, sizeof(oclass)); + oclass.handle = args->v0.handle; + oclass.route = args->v0.route; + oclass.token = args->v0.token; + oclass.object = args->v0.object; + oclass.client = client; + oclass.parent = parent; + ret = parent->func->sclass(parent, i++, &oclass); + if (ret) + return ret; + } while (oclass.base.oclass != args->v0.oclass); + + if (oclass.engine) { + oclass.engine = nvkm_engine_ref(oclass.engine); + if (IS_ERR(oclass.engine)) + return PTR_ERR(oclass.engine); + } + + ret = oclass.ctor(&oclass, data, size, &object); + nvkm_engine_unref(&oclass.engine); + if (ret == 0) { + ret = nvkm_object_init(object); + if (ret == 0) { + list_add_tail(&object->head, &parent->tree); + if (nvkm_object_insert(object)) { + client->data = object; + return 0; + } + ret = -EEXIST; + } + nvkm_object_fini(object, false); + } + + nvkm_object_del(&object); + return ret; +} + +static int +nvkm_ioctl_del(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_del none; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "delete size %d\n", size); + if (!(ret = nvif_unvers(ret, &data, &size, args->none))) { + nvif_ioctl(object, "delete\n"); + nvkm_object_fini(object, false); + nvkm_object_del(&object); + } + + return ret ? ret : 1; +} + +static int +nvkm_ioctl_mthd(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_mthd_v0 v0; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "mthd size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { + nvif_ioctl(object, "mthd vers %d mthd %02x\n", + args->v0.version, args->v0.method); + ret = nvkm_object_mthd(object, args->v0.method, data, size); + } + + return ret; +} + + +static int +nvkm_ioctl_rd(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_rd_v0 v0; + } *args = data; + union { + u8 b08; + u16 b16; + u32 b32; + } v; + int ret = -ENOSYS; + + nvif_ioctl(object, "rd size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { + nvif_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: + ret = nvkm_object_rd08(object, args->v0.addr, &v.b08); + args->v0.data = v.b08; + break; + case 2: + ret = nvkm_object_rd16(object, args->v0.addr, &v.b16); + args->v0.data = v.b16; + break; + case 4: + ret = nvkm_object_rd32(object, args->v0.addr, &v.b32); + args->v0.data = v.b32; + break; + default: + ret = -EINVAL; + break; + } + } + + return ret; +} + +static int +nvkm_ioctl_wr(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_wr_v0 v0; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "wr size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { + nvif_ioctl(object, + "wr vers %d size %d addr %016llx data %08x\n", + args->v0.version, args->v0.size, args->v0.addr, + args->v0.data); + } else + return ret; + + switch (args->v0.size) { + case 1: return nvkm_object_wr08(object, args->v0.addr, args->v0.data); + case 2: return nvkm_object_wr16(object, args->v0.addr, args->v0.data); + case 4: return nvkm_object_wr32(object, args->v0.addr, args->v0.data); + default: + break; + } + + return -EINVAL; +} + +static int +nvkm_ioctl_map(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_map_v0 v0; + } *args = data; + enum nvkm_object_map type; + int ret = -ENOSYS; + + nvif_ioctl(object, "map size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { + nvif_ioctl(object, "map vers %d\n", args->v0.version); + ret = nvkm_object_map(object, data, size, &type, + &args->v0.handle, + &args->v0.length); + if (type == NVKM_OBJECT_MAP_IO) + args->v0.type = NVIF_IOCTL_MAP_V0_IO; + else + args->v0.type = NVIF_IOCTL_MAP_V0_VA; + } + + return ret; +} + +static int +nvkm_ioctl_unmap(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_unmap none; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "unmap size %d\n", size); + if (!(ret = nvif_unvers(ret, &data, &size, args->none))) { + nvif_ioctl(object, "unmap\n"); + ret = nvkm_object_unmap(object); + } + + return ret; +} + +static int +nvkm_ioctl_ntfy_new(struct nvkm_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_ntfy_new_v0 v0; + } *args = data; + struct nvkm_event *event; + int ret = -ENOSYS; + + nvif_ioctl(object, "ntfy new size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { + nvif_ioctl(object, "ntfy new vers %d event %02x\n", + args->v0.version, args->v0.event); + ret = nvkm_object_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_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_ntfy_del_v0 v0; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "ntfy del size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { + nvif_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_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_ntfy_get_v0 v0; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "ntfy get size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { + nvif_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_client *client, + struct nvkm_object *object, void *data, u32 size) +{ + union { + struct nvif_ioctl_ntfy_put_v0 v0; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "ntfy put size %d\n", size); + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { + nvif_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_client *, struct nvkm_object *, 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_client *client, u64 handle, u32 type, + void *data, u32 size, u8 owner, u8 *route, u64 *token) +{ + struct nvkm_object *object; + int ret; + + object = nvkm_object_search(client, handle, NULL); + if (IS_ERR(object)) { + nvif_ioctl(&client->object, "object not found\n"); + return PTR_ERR(object); + } + + if (owner != NVIF_IOCTL_V0_OWNER_ANY && owner != object->route) { + nvif_ioctl(&client->object, "route != owner\n"); + return -EACCES; + } + *route = object->route; + *token = object->token; + + if (ret = -EINVAL, type < ARRAY_SIZE(nvkm_ioctl_v0)) { + if (nvkm_ioctl_v0[type].version == 0) + ret = nvkm_ioctl_v0[type].func(client, object, data, size); + } + + return ret; +} + +int +nvkm_ioctl(struct nvkm_client *client, void *data, u32 size, void **hack) +{ + struct nvkm_object *object = &client->object; + union { + struct nvif_ioctl_v0 v0; + } *args = data; + int ret = -ENOSYS; + + nvif_ioctl(object, "size %d\n", size); + + if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, true))) { + nvif_ioctl(object, + "vers %d type %02x object %016llx owner %02x\n", + args->v0.version, args->v0.type, args->v0.object, + args->v0.owner); + ret = nvkm_ioctl_path(client, args->v0.object, args->v0.type, + data, size, args->v0.owner, + &args->v0.route, &args->v0.token); + } + + if (ret != 1) { + nvif_ioctl(object, "return %d\n", ret); + if (hack) { + *hack = client->data; + client->data = NULL; + } + } + + return ret; +} |