From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/nouveau/nvif/object.c | 308 ++++++++++++++++++++++++++++++++++ 1 file changed, 308 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvif/object.c (limited to 'drivers/gpu/drm/nouveau/nvif/object.c') diff --git a/drivers/gpu/drm/nouveau/nvif/object.c b/drivers/gpu/drm/nouveau/nvif/object.c new file mode 100644 index 000000000..671a5c019 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvif/object.c @@ -0,0 +1,308 @@ +/* + * 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 + +int +nvif_object_ioctl(struct nvif_object *object, void *data, u32 size, void **hack) +{ + struct nvif_client *client = object->client; + union { + struct nvif_ioctl_v0 v0; + } *args = data; + + if (size >= sizeof(*args) && args->v0.version == 0) { + if (object != &client->object) + args->v0.object = nvif_handle(object); + else + args->v0.object = 0; + args->v0.owner = NVIF_IOCTL_V0_OWNER_ANY; + } else + return -ENOSYS; + + return client->driver->ioctl(client->object.priv, client->super, + data, size, hack); +} + +void +nvif_object_sclass_put(struct nvif_sclass **psclass) +{ + kfree(*psclass); + *psclass = NULL; +} + +int +nvif_object_sclass_get(struct nvif_object *object, struct nvif_sclass **psclass) +{ + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_sclass_v0 sclass; + } *args = NULL; + int ret, cnt = 0, i; + u32 size; + + while (1) { + size = sizeof(*args) + cnt * sizeof(args->sclass.oclass[0]); + if (!(args = kmalloc(size, GFP_KERNEL))) + return -ENOMEM; + args->ioctl.version = 0; + args->ioctl.type = NVIF_IOCTL_V0_SCLASS; + args->sclass.version = 0; + args->sclass.count = cnt; + + ret = nvif_object_ioctl(object, args, size, NULL); + if (ret == 0 && args->sclass.count <= cnt) + break; + cnt = args->sclass.count; + kfree(args); + if (ret != 0) + return ret; + } + + *psclass = kcalloc(args->sclass.count, sizeof(**psclass), GFP_KERNEL); + if (*psclass) { + for (i = 0; i < args->sclass.count; i++) { + (*psclass)[i].oclass = args->sclass.oclass[i].oclass; + (*psclass)[i].minver = args->sclass.oclass[i].minver; + (*psclass)[i].maxver = args->sclass.oclass[i].maxver; + } + ret = args->sclass.count; + } else { + ret = -ENOMEM; + } + + kfree(args); + return ret; +} + +u32 +nvif_object_rd(struct nvif_object *object, int size, u64 addr) +{ + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_rd_v0 rd; + } args = { + .ioctl.type = NVIF_IOCTL_V0_RD, + .rd.size = size, + .rd.addr = addr, + }; + int ret = nvif_object_ioctl(object, &args, sizeof(args), NULL); + if (ret) { + /*XXX: warn? */ + return 0; + } + return args.rd.data; +} + +void +nvif_object_wr(struct nvif_object *object, int size, u64 addr, u32 data) +{ + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_wr_v0 wr; + } args = { + .ioctl.type = NVIF_IOCTL_V0_WR, + .wr.size = size, + .wr.addr = addr, + .wr.data = data, + }; + int ret = nvif_object_ioctl(object, &args, sizeof(args), NULL); + if (ret) { + /*XXX: warn? */ + } +} + +int +nvif_object_mthd(struct nvif_object *object, u32 mthd, void *data, u32 size) +{ + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_mthd_v0 mthd; + } *args; + u8 stack[128]; + int ret; + + if (sizeof(*args) + size > sizeof(stack)) { + if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL))) + return -ENOMEM; + } else { + args = (void *)stack; + } + args->ioctl.version = 0; + args->ioctl.type = NVIF_IOCTL_V0_MTHD; + args->mthd.version = 0; + args->mthd.method = mthd; + + memcpy(args->mthd.data, data, size); + ret = nvif_object_ioctl(object, args, sizeof(*args) + size, NULL); + memcpy(data, args->mthd.data, size); + if (args != (void *)stack) + kfree(args); + return ret; +} + +void +nvif_object_unmap_handle(struct nvif_object *object) +{ + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_unmap unmap; + } args = { + .ioctl.type = NVIF_IOCTL_V0_UNMAP, + }; + + nvif_object_ioctl(object, &args, sizeof(args), NULL); +} + +int +nvif_object_map_handle(struct nvif_object *object, void *argv, u32 argc, + u64 *handle, u64 *length) +{ + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_map_v0 map; + } *args; + u32 argn = sizeof(*args) + argc; + int ret, maptype; + + if (!(args = kzalloc(argn, GFP_KERNEL))) + return -ENOMEM; + args->ioctl.type = NVIF_IOCTL_V0_MAP; + memcpy(args->map.data, argv, argc); + + ret = nvif_object_ioctl(object, args, argn, NULL); + *handle = args->map.handle; + *length = args->map.length; + maptype = args->map.type; + kfree(args); + return ret ? ret : (maptype == NVIF_IOCTL_MAP_V0_IO); +} + +void +nvif_object_unmap(struct nvif_object *object) +{ + struct nvif_client *client = object->client; + if (object->map.ptr) { + if (object->map.size) { + client->driver->unmap(client, object->map.ptr, + object->map.size); + object->map.size = 0; + } + object->map.ptr = NULL; + nvif_object_unmap_handle(object); + } +} + +int +nvif_object_map(struct nvif_object *object, void *argv, u32 argc) +{ + struct nvif_client *client = object->client; + u64 handle, length; + int ret = nvif_object_map_handle(object, argv, argc, &handle, &length); + if (ret >= 0) { + if (ret) { + object->map.ptr = client->driver->map(client, + handle, + length); + if (ret = -ENOMEM, object->map.ptr) { + object->map.size = length; + return 0; + } + } else { + object->map.ptr = (void *)(unsigned long)handle; + return 0; + } + nvif_object_unmap_handle(object); + } + return ret; +} + +void +nvif_object_dtor(struct nvif_object *object) +{ + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_del del; + } args = { + .ioctl.type = NVIF_IOCTL_V0_DEL, + }; + + if (!object->client) + return; + + nvif_object_unmap(object); + nvif_object_ioctl(object, &args, sizeof(args), NULL); + object->client = NULL; +} + +int +nvif_object_ctor(struct nvif_object *parent, const char *name, u32 handle, + s32 oclass, void *data, u32 size, struct nvif_object *object) +{ + struct { + struct nvif_ioctl_v0 ioctl; + struct nvif_ioctl_new_v0 new; + } *args; + int ret = 0; + + object->client = NULL; + object->name = name ? name : "nvifObject"; + object->handle = handle; + object->oclass = oclass; + object->map.ptr = NULL; + object->map.size = 0; + + if (parent) { + if (!(args = kmalloc(sizeof(*args) + size, GFP_KERNEL))) { + nvif_object_dtor(object); + return -ENOMEM; + } + + object->parent = parent->parent; + + args->ioctl.version = 0; + args->ioctl.type = NVIF_IOCTL_V0_NEW; + args->new.version = 0; + args->new.route = parent->client->route; + args->new.token = nvif_handle(object); + args->new.object = nvif_handle(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_dtor(object); + return ret; +} -- cgit v1.2.3