diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/device/user.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/engine/device/user.c | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c new file mode 100644 index 0000000000..9b39ec3416 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c @@ -0,0 +1,430 @@ +/* + * 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; + + snprintf(args->v0.chip, sizeof(args->v0.chip), "%s", device->chip->name); + snprintf(args->v0.name, sizeof(args->v0.name), "%s", device->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 if (device->vfn && index-- == 0) + sclass = &device->vfn->user; + else + return -EINVAL; + + oclass->base = sclass->base; + oclass->engine = NULL; + } + + 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, +}; |