/*
* 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;
case AD100: args->v0.family = NV_DEVICE_INFO_V0_ADA; 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_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);
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 = {
.init = nvkm_udevice_init,
.fini = nvkm_udevice_fini,
.mthd = nvkm_udevice_mthd,
.map = nvkm_udevice_map,
.sclass = nvkm_udevice_child_get,
};
static int
nvkm_udevice_new(const struct nvkm_oclass *oclass, void *data, u32 size,
struct nvkm_object **pobject)
{
struct nvkm_client *client = oclass->client;
struct nvkm_udevice *udev;
if (!(udev = kzalloc(sizeof(*udev), GFP_KERNEL)))
return -ENOMEM;
nvkm_object_ctor(&nvkm_udevice, oclass, &udev->object);
*pobject = &udev->object;
/* find the device that matches what the client requested */
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,
};
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