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path: root/drivers/gpu/drm/nouveau/nvkm/core/ioctl.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/core/ioctl.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/core/ioctl.c459
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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-15 13:13:54 +0000