X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fnouveau%2Fnvkm%2Fengine%2Fdevice%2Fuser.c;fp=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fnouveau%2Fnvkm%2Fengine%2Fdevice%2Fuser.c;h=1ae48f27029d548dca534ab00f131652032b5100;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=0000000000000000000000000000000000000000;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c new file mode 100644 index 000000000..1ae48f270 --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/engine/device/user.c @@ -0,0 +1,371 @@ +/* + * 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 +#include +#include +#include + +#include +#include + +struct nvkm_udevice { + struct nvkm_object object; + struct nvkm_device *device; +}; + +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; + } *args = data; + int ret; + + nvif_ioctl(object, "device info size %d\n", size); + if (nvif_unpack(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; + 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_device *device = udev->device; + union { + struct nv_device_time_v0 v0; + } *args = data; + int ret; + + if (nvif_unpack(args->v0, 0, 0, false)) { + 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); + 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, u64 *addr, u32 *size) +{ + struct nvkm_udevice *udev = nvkm_udevice(object); + struct nvkm_device *device = udev->device; + *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)) || + !(engine->func->base.sclass)) + continue; + oclass->engine = engine; + + index -= engine->func->base.sclass(oclass, index, &sclass); + } + + if (!sclass) { + switch (index) { + case 0: sclass = &nvkm_control_oclass; break; + default: + 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, +}; + +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; + + nvif_ioctl(parent, "create device size %d\n", size); + if (nvif_unpack(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 (client->super) + 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, +};