| /* |
| * Copyright 2012 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 |
| */ |
| #define nvkm_udevice(p) container_of((p), struct nvkm_udevice, object) |
| #include "priv.h" |
| #include "ctrl.h" |
| |
| #include <core/client.h> |
| #include <subdev/fb.h> |
| #include <subdev/instmem.h> |
| #include <subdev/timer.h> |
| |
| #include <nvif/class.h> |
| #include <nvif/cl0080.h> |
| #include <nvif/unpack.h> |
| |
| struct nvkm_udevice { |
| struct nvkm_object object; |
| struct nvkm_device *device; |
| }; |
| |
| static int |
| nvkm_udevice_info_subdev(struct nvkm_device *device, u64 mthd, u64 *data) |
| { |
| struct nvkm_subdev *subdev; |
| enum nvkm_subdev_type type; |
| |
| switch (mthd & NV_DEVICE_INFO_UNIT) { |
| case NV_DEVICE_HOST(0): type = NVKM_ENGINE_FIFO; break; |
| default: |
| return -EINVAL; |
| } |
| |
| subdev = nvkm_device_subdev(device, type, 0); |
| if (subdev) |
| return nvkm_subdev_info(subdev, mthd, data); |
| return -ENODEV; |
| } |
| |
| static void |
| nvkm_udevice_info_v1(struct nvkm_device *device, |
| struct nv_device_info_v1_data *args) |
| { |
| if (args->mthd & NV_DEVICE_INFO_UNIT) { |
| if (nvkm_udevice_info_subdev(device, args->mthd, &args->data)) |
| args->mthd = NV_DEVICE_INFO_INVALID; |
| return; |
| } |
| args->mthd = NV_DEVICE_INFO_INVALID; |
| } |
| |
| static int |
| nvkm_udevice_info(struct nvkm_udevice *udev, void *data, u32 size) |
| { |
| struct nvkm_object *object = &udev->object; |
| struct nvkm_device *device = udev->device; |
| struct nvkm_fb *fb = device->fb; |
| struct nvkm_instmem *imem = device->imem; |
| union { |
| struct nv_device_info_v0 v0; |
| struct nv_device_info_v1 v1; |
| } *args = data; |
| int ret = -ENOSYS, i; |
| |
| nvif_ioctl(object, "device info size %d\n", size); |
| if (!(ret = nvif_unpack(ret, &data, &size, args->v1, 1, 1, true))) { |
| nvif_ioctl(object, "device info vers %d count %d\n", |
| args->v1.version, args->v1.count); |
| if (args->v1.count * sizeof(args->v1.data[0]) == size) { |
| for (i = 0; i < args->v1.count; i++) |
| nvkm_udevice_info_v1(device, &args->v1.data[i]); |
| return 0; |
| } |
| return -EINVAL; |
| } else |
| if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { |
| nvif_ioctl(object, "device info vers %d\n", args->v0.version); |
| } else |
| return ret; |
| |
| switch (device->chipset) { |
| case 0x01a: |
| case 0x01f: |
| case 0x04c: |
| case 0x04e: |
| case 0x063: |
| case 0x067: |
| case 0x068: |
| case 0x0aa: |
| case 0x0ac: |
| case 0x0af: |
| args->v0.platform = NV_DEVICE_INFO_V0_IGP; |
| break; |
| default: |
| switch (device->type) { |
| case NVKM_DEVICE_PCI: |
| args->v0.platform = NV_DEVICE_INFO_V0_PCI; |
| break; |
| case NVKM_DEVICE_AGP: |
| args->v0.platform = NV_DEVICE_INFO_V0_AGP; |
| break; |
| case NVKM_DEVICE_PCIE: |
| args->v0.platform = NV_DEVICE_INFO_V0_PCIE; |
| break; |
| case NVKM_DEVICE_TEGRA: |
| args->v0.platform = NV_DEVICE_INFO_V0_SOC; |
| break; |
| default: |
| WARN_ON(1); |
| break; |
| } |
| break; |
| } |
| |
| switch (device->card_type) { |
| case NV_04: args->v0.family = NV_DEVICE_INFO_V0_TNT; break; |
| case NV_10: |
| case NV_11: args->v0.family = NV_DEVICE_INFO_V0_CELSIUS; break; |
| case NV_20: args->v0.family = NV_DEVICE_INFO_V0_KELVIN; break; |
| case NV_30: args->v0.family = NV_DEVICE_INFO_V0_RANKINE; break; |
| case NV_40: args->v0.family = NV_DEVICE_INFO_V0_CURIE; break; |
| case NV_50: args->v0.family = NV_DEVICE_INFO_V0_TESLA; break; |
| case NV_C0: args->v0.family = NV_DEVICE_INFO_V0_FERMI; break; |
| case NV_E0: args->v0.family = NV_DEVICE_INFO_V0_KEPLER; break; |
| case GM100: args->v0.family = NV_DEVICE_INFO_V0_MAXWELL; break; |
| case GP100: args->v0.family = NV_DEVICE_INFO_V0_PASCAL; break; |
| case GV100: args->v0.family = NV_DEVICE_INFO_V0_VOLTA; break; |
| case TU100: args->v0.family = NV_DEVICE_INFO_V0_TURING; break; |
| case GA100: args->v0.family = NV_DEVICE_INFO_V0_AMPERE; break; |
| default: |
| args->v0.family = 0; |
| break; |
| } |
| |
| args->v0.chipset = device->chipset; |
| args->v0.revision = device->chiprev; |
| if (fb && fb->ram) |
| args->v0.ram_size = args->v0.ram_user = fb->ram->size; |
| else |
| args->v0.ram_size = args->v0.ram_user = 0; |
| if (imem && args->v0.ram_size > 0) |
| args->v0.ram_user = args->v0.ram_user - imem->reserved; |
| |
| strncpy(args->v0.chip, device->chip->name, sizeof(args->v0.chip)); |
| strncpy(args->v0.name, device->name, sizeof(args->v0.name)); |
| return 0; |
| } |
| |
| static int |
| nvkm_udevice_time(struct nvkm_udevice *udev, void *data, u32 size) |
| { |
| struct nvkm_object *object = &udev->object; |
| struct nvkm_device *device = udev->device; |
| union { |
| struct nv_device_time_v0 v0; |
| } *args = data; |
| int ret = -ENOSYS; |
| |
| nvif_ioctl(object, "device time size %d\n", size); |
| if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { |
| nvif_ioctl(object, "device time vers %d\n", args->v0.version); |
| args->v0.time = nvkm_timer_read(device->timer); |
| } |
| |
| return ret; |
| } |
| |
| static int |
| nvkm_udevice_mthd(struct nvkm_object *object, u32 mthd, void *data, u32 size) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| nvif_ioctl(object, "device mthd %08x\n", mthd); |
| switch (mthd) { |
| case NV_DEVICE_V0_INFO: |
| return nvkm_udevice_info(udev, data, size); |
| case NV_DEVICE_V0_TIME: |
| return nvkm_udevice_time(udev, data, size); |
| default: |
| break; |
| } |
| return -EINVAL; |
| } |
| |
| static int |
| nvkm_udevice_rd08(struct nvkm_object *object, u64 addr, u8 *data) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| *data = nvkm_rd08(udev->device, addr); |
| return 0; |
| } |
| |
| static int |
| nvkm_udevice_rd16(struct nvkm_object *object, u64 addr, u16 *data) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| *data = nvkm_rd16(udev->device, addr); |
| return 0; |
| } |
| |
| static int |
| nvkm_udevice_rd32(struct nvkm_object *object, u64 addr, u32 *data) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| *data = nvkm_rd32(udev->device, addr); |
| return 0; |
| } |
| |
| static int |
| nvkm_udevice_wr08(struct nvkm_object *object, u64 addr, u8 data) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| nvkm_wr08(udev->device, addr, data); |
| return 0; |
| } |
| |
| static int |
| nvkm_udevice_wr16(struct nvkm_object *object, u64 addr, u16 data) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| nvkm_wr16(udev->device, addr, data); |
| return 0; |
| } |
| |
| static int |
| nvkm_udevice_wr32(struct nvkm_object *object, u64 addr, u32 data) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| nvkm_wr32(udev->device, addr, data); |
| return 0; |
| } |
| |
| static int |
| nvkm_udevice_map(struct nvkm_object *object, void *argv, u32 argc, |
| enum nvkm_object_map *type, u64 *addr, u64 *size) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| struct nvkm_device *device = udev->device; |
| *type = NVKM_OBJECT_MAP_IO; |
| *addr = device->func->resource_addr(device, 0); |
| *size = device->func->resource_size(device, 0); |
| return 0; |
| } |
| |
| static int |
| nvkm_udevice_fini(struct nvkm_object *object, bool suspend) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| struct nvkm_device *device = udev->device; |
| int ret = 0; |
| |
| mutex_lock(&device->mutex); |
| if (!--device->refcount) { |
| ret = nvkm_device_fini(device, suspend); |
| if (ret && suspend) { |
| device->refcount++; |
| goto done; |
| } |
| } |
| |
| done: |
| mutex_unlock(&device->mutex); |
| return ret; |
| } |
| |
| static int |
| nvkm_udevice_init(struct nvkm_object *object) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| struct nvkm_device *device = udev->device; |
| int ret = 0; |
| |
| mutex_lock(&device->mutex); |
| if (!device->refcount++) { |
| ret = nvkm_device_init(device); |
| if (ret) { |
| device->refcount--; |
| goto done; |
| } |
| } |
| |
| done: |
| mutex_unlock(&device->mutex); |
| return ret; |
| } |
| |
| static int |
| nvkm_udevice_child_new(const struct nvkm_oclass *oclass, |
| void *data, u32 size, struct nvkm_object **pobject) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(oclass->parent); |
| const struct nvkm_device_oclass *sclass = oclass->priv; |
| return sclass->ctor(udev->device, oclass, data, size, pobject); |
| } |
| |
| static int |
| nvkm_udevice_child_get(struct nvkm_object *object, int index, |
| struct nvkm_oclass *oclass) |
| { |
| struct nvkm_udevice *udev = nvkm_udevice(object); |
| struct nvkm_device *device = udev->device; |
| struct nvkm_engine *engine; |
| u64 mask = (1ULL << NVKM_ENGINE_DMAOBJ) | |
| (1ULL << NVKM_ENGINE_FIFO) | |
| (1ULL << NVKM_ENGINE_DISP) | |
| (1ULL << NVKM_ENGINE_PM); |
| const struct nvkm_device_oclass *sclass = NULL; |
| int i; |
| |
| for (; i = __ffs64(mask), mask && !sclass; mask &= ~(1ULL << i)) { |
| if (!(engine = nvkm_device_engine(device, i, 0)) || |
| !(engine->func->base.sclass)) |
| continue; |
| oclass->engine = engine; |
| |
| index -= engine->func->base.sclass(oclass, index, &sclass); |
| } |
| |
| if (!sclass) { |
| if (index-- == 0) |
| sclass = &nvkm_control_oclass; |
| else if (device->mmu && index-- == 0) |
| sclass = &device->mmu->user; |
| else if (device->fault && index-- == 0) |
| sclass = &device->fault->user; |
| else |
| return -EINVAL; |
| |
| oclass->base = sclass->base; |
| } |
| |
| oclass->ctor = nvkm_udevice_child_new; |
| oclass->priv = sclass; |
| return 0; |
| } |
| |
| static const struct nvkm_object_func |
| nvkm_udevice_super = { |
| .init = nvkm_udevice_init, |
| .fini = nvkm_udevice_fini, |
| .mthd = nvkm_udevice_mthd, |
| .map = nvkm_udevice_map, |
| .rd08 = nvkm_udevice_rd08, |
| .rd16 = nvkm_udevice_rd16, |
| .rd32 = nvkm_udevice_rd32, |
| .wr08 = nvkm_udevice_wr08, |
| .wr16 = nvkm_udevice_wr16, |
| .wr32 = nvkm_udevice_wr32, |
| .sclass = nvkm_udevice_child_get, |
| }; |
| |
| static const struct nvkm_object_func |
| nvkm_udevice = { |
| .init = nvkm_udevice_init, |
| .fini = nvkm_udevice_fini, |
| .mthd = nvkm_udevice_mthd, |
| .sclass = nvkm_udevice_child_get, |
| }; |
| |
| static int |
| nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size, |
| struct nvkm_object **pobject) |
| { |
| union { |
| struct nv_device_v0 v0; |
| } *args = data; |
| struct nvkm_client *client = oclass->client; |
| struct nvkm_object *parent = &client->object; |
| const struct nvkm_object_func *func; |
| struct nvkm_udevice *udev; |
| int ret = -ENOSYS; |
| |
| nvif_ioctl(parent, "create device size %d\n", size); |
| if (!(ret = nvif_unpack(ret, &data, &size, args->v0, 0, 0, false))) { |
| nvif_ioctl(parent, "create device v%d device %016llx\n", |
| args->v0.version, args->v0.device); |
| } else |
| return ret; |
| |
| /* give priviledged clients register access */ |
| if (args->v0.priv) |
| func = &nvkm_udevice_super; |
| else |
| func = &nvkm_udevice; |
| |
| if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL))) |
| return -ENOMEM; |
| nvkm_object_ctor(func, oclass, &udev->object); |
| *pobject = &udev->object; |
| |
| /* find the device that matches what the client requested */ |
| if (args->v0.device != ~0) |
| udev->device = nvkm_device_find(args->v0.device); |
| else |
| udev->device = nvkm_device_find(client->device); |
| if (!udev->device) |
| return -ENODEV; |
| |
| return 0; |
| } |
| |
| const struct nvkm_sclass |
| nvkm_udevice_sclass = { |
| .oclass = NV_DEVICE, |
| .minver = 0, |
| .maxver = 0, |
| .ctor = nvkm_udevice_new, |
| }; |