int
nvif_disp_ctor(struct nvif_device *device, s32 oclass, struct nvif_disp *disp)
{
static const struct nvif_mclass disps[] = {
{ GV100_DISP, -1 },
{ GP102_DISP, -1 },
{ GP100_DISP, -1 },
{ GM200_DISP, -1 },
{ GM107_DISP, -1 },
{ GK110_DISP, -1 },
{ GK104_DISP, -1 },
{ GF110_DISP, -1 },
{ GT214_DISP, -1 },
{ GT206_DISP, -1 },
{ GT200_DISP, -1 },
{ G82_DISP, -1 },
{ NV50_DISP, -1 },
{ NV04_DISP, -1 },
{}
};
int cid = nvif_sclass(&device->object, disps, oclass);
disp->object.client = NULL;
if (cid < 0)
return cid;
return nvif_object_init(&device->object, 0, disps[cid].oclass,
NULL, 0, &disp->object);
}
int
nvif_client_init(void (*dtor)(struct nvif_client *), const char *driver,
const char *name, u64 device, const char *cfg, const char *dbg,
struct nvif_client *client)
{
int ret, i;
ret = nvif_object_init(NULL, (void*)dtor, 0, 0, NULL, 0, &client->base);
if (ret)
return ret;
client->base.parent = &client->base;
client->base.handle = ~0;
client->object = &client->base;
client->super = true;
for (i = 0, ret = -EINVAL; (client->driver = nvif_drivers[i]); i++) {
if (!driver || !strcmp(client->driver->name, driver)) {
ret = client->driver->init(name, device, cfg, dbg,
&client->base.priv);
if (!ret || driver)
break;
}
}
if (ret)
nvif_client_fini(client);
return ret;
}
int
nvif_user_init(struct nvif_device *device)
{
struct {
s32 oclass;
int version;
const struct nvif_user_func *func;
} users[] = {
{ VOLTA_USERMODE_A, -1, &nvif_userc361 },
{}
};
int cid, ret;
if (device->user.func)
return 0;
cid = nvif_mclass(&device->object, users);
if (cid < 0)
return cid;
ret = nvif_object_init(&device->object, 0, users[cid].oclass, NULL, 0,
&device->user.object);
if (ret)
return ret;
nvif_object_map(&device->user.object, NULL, 0);
device->user.func = users[cid].func;
return 0;
}
int
nvif_device_init(struct nvif_object *parent, u32 handle, s32 oclass,
void *data, u32 size, struct nvif_device *device)
{
int ret = nvif_object_init(parent, handle, oclass, data, size,
&device->object);
if (ret == 0) {
device->info.version = 0;
ret = nvif_object_mthd(&device->object, NV_DEVICE_V0_INFO,
&device->info, sizeof(device->info));
}
return ret;
}
static int
nv50_chan_create(struct nvif_object *disp, const u32 *oclass, u8 head,
void *data, u32 size, struct nv50_chan *chan)
{
while (oclass[0]) {
int ret = nvif_object_init(disp, NULL, (oclass[0] << 16) | head,
oclass[0], data, size,
&chan->user);
if (oclass++, ret == 0) {
nvif_object_map(&chan->user);
return ret;
}
}
return -ENOSYS;
}
int
nvif_mem_init_type(struct nvif_mmu *mmu, s32 oclass, int type, u8 page,
u64 size, void *argv, u32 argc, struct nvif_mem *mem)
{
struct nvif_mem_v0 *args;
u8 stack[128];
int ret;
mem->object.client = NULL;
if (type < 0)
return -EINVAL;
if (sizeof(*args) + argc > sizeof(stack)) {
if (!(args = kmalloc(sizeof(*args) + argc, GFP_KERNEL)))
return -ENOMEM;
} else {
args = (void *)stack;
}
args->version = 0;
args->type = type;
args->page = page;
args->size = size;
memcpy(args->data, argv, argc);
ret = nvif_object_init(&mmu->object, 0, oclass, args,
sizeof(*args) + argc, &mem->object);
if (ret == 0) {
mem->type = mmu->type[type].type;
mem->page = args->page;
mem->addr = args->addr;
mem->size = args->size;
}
if (args != (void *)stack)
kfree(args);
return ret;
}
static int
nouveau_channel_dma(struct nouveau_drm *drm, struct nvif_device *device,
struct nouveau_channel **pchan)
{
static const u16 oclasses[] = { NV40_CHANNEL_DMA,
NV17_CHANNEL_DMA,
NV10_CHANNEL_DMA,
NV03_CHANNEL_DMA,
0 };
const u16 *oclass = oclasses;
struct nv03_channel_dma_v0 args;
struct nouveau_channel *chan;
int ret;
/* allocate dma push buffer */
ret = nouveau_channel_prep(drm, device, 0x10000, &chan);
*pchan = chan;
if (ret)
return ret;
/* create channel object */
args.version = 0;
args.pushbuf = nvif_handle(&chan->push.ctxdma);
args.offset = chan->push.vma.offset;
do {
ret = nvif_object_init(&device->object, 0, *oclass++,
&args, sizeof(args), &chan->user);
if (ret == 0) {
chan->chid = args.chid;
return ret;
}
} while (ret && *oclass);
nouveau_channel_del(pchan);
return ret;
}
static void
nouveau_accel_init(struct nouveau_drm *drm)
{
struct nvif_device *device = &drm->device;
struct nvif_sclass *sclass;
u32 arg0, arg1;
int ret, i, n;
if (nouveau_noaccel)
return;
/* initialise synchronisation routines */
/*XXX: this is crap, but the fence/channel stuff is a little
* backwards in some places. this will be fixed.
*/
ret = n = nvif_object_sclass_get(&device->object, &sclass);
if (ret < 0)
return;
for (ret = -ENOSYS, i = 0; i < n; i++) {
switch (sclass[i].oclass) {
case NV03_CHANNEL_DMA:
ret = nv04_fence_create(drm);
break;
case NV10_CHANNEL_DMA:
ret = nv10_fence_create(drm);
break;
case NV17_CHANNEL_DMA:
case NV40_CHANNEL_DMA:
ret = nv17_fence_create(drm);
break;
case NV50_CHANNEL_GPFIFO:
ret = nv50_fence_create(drm);
break;
case G82_CHANNEL_GPFIFO:
ret = nv84_fence_create(drm);
break;
case FERMI_CHANNEL_GPFIFO:
case KEPLER_CHANNEL_GPFIFO_A:
case MAXWELL_CHANNEL_GPFIFO_A:
ret = nvc0_fence_create(drm);
break;
default:
break;
}
}
nvif_object_sclass_put(&sclass);
if (ret) {
NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
nouveau_accel_fini(drm);
return;
}
if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
0, &drm->cechan);
if (ret)
NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
arg1 = 1;
} else
if (device->info.chipset >= 0xa3 &&
device->info.chipset != 0xaa &&
device->info.chipset != 0xac) {
ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
NvDmaFB, NvDmaTT, &drm->cechan);
if (ret)
NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
arg0 = NvDmaFB;
arg1 = NvDmaTT;
} else {
arg0 = NvDmaFB;
arg1 = NvDmaTT;
}
ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
&drm->channel);
if (ret) {
NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
nouveau_accel_fini(drm);
return;
}
ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
if (ret == 0) {
ret = RING_SPACE(drm->channel, 2);
if (ret == 0) {
if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
OUT_RING (drm->channel, NVDRM_NVSW);
} else
if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
OUT_RING (drm->channel, 0x001f0000);
}
}
ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
false, NVSW_NTFY_UEVENT, NULL, 0, 0,
&drm->flip);
if (ret == 0)
ret = nvif_notify_get(&drm->flip);
if (ret) {
nouveau_accel_fini(drm);
return;
}
}
if (ret) {
NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
nouveau_accel_fini(drm);
return;
}
if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
NULL, &drm->notify);
if (ret) {
NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
nouveau_accel_fini(drm);
return;
}
ret = nvif_object_init(&drm->channel->user, NvNotify0,
NV_DMA_IN_MEMORY,
&(struct nv_dma_v0) {
.target = NV_DMA_V0_TARGET_VRAM,
.access = NV_DMA_V0_ACCESS_RDWR,
.start = drm->notify->addr,
.limit = drm->notify->addr + 31
}, sizeof(struct nv_dma_v0),
static ssize_t
nouveau_sysfs_pstate_get(struct device *d, struct device_attribute *a, char *b)
{
struct nouveau_sysfs *sysfs = nouveau_sysfs(drm_device(d));
struct nvif_control_pstate_info_v0 info = {};
size_t cnt = PAGE_SIZE;
char *buf = b;
int ret, i;
ret = nvif_mthd(&sysfs->ctrl, NVIF_CONTROL_PSTATE_INFO,
&info, sizeof(info));
if (ret)
return ret;
for (i = 0; i < info.count + 1; i++) {
const s32 state = i < info.count ? i :
NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT;
struct nvif_control_pstate_attr_v0 attr = {
.state = state,
.index = 0,
};
ret = nvif_mthd(&sysfs->ctrl, NVIF_CONTROL_PSTATE_ATTR,
&attr, sizeof(attr));
if (ret)
return ret;
if (i < info.count)
snappendf(buf, cnt, "%02x:", attr.state);
else
snappendf(buf, cnt, "%s:", info.pwrsrc == 0 ? "DC" :
info.pwrsrc == 1 ? "AC" :
"--");
attr.index = 0;
do {
attr.state = state;
ret = nvif_mthd(&sysfs->ctrl,
NVIF_CONTROL_PSTATE_ATTR,
&attr, sizeof(attr));
if (ret)
return ret;
snappendf(buf, cnt, " %s %d", attr.name, attr.min);
if (attr.min != attr.max)
snappendf(buf, cnt, "-%d", attr.max);
snappendf(buf, cnt, " %s", attr.unit);
} while (attr.index);
if (state >= 0) {
if (info.ustate_ac == state)
snappendf(buf, cnt, " AC");
if (info.ustate_dc == state)
snappendf(buf, cnt, " DC");
if (info.pstate == state)
snappendf(buf, cnt, " *");
} else {
if (info.ustate_ac < -1)
snappendf(buf, cnt, " AC");
if (info.ustate_dc < -1)
snappendf(buf, cnt, " DC");
}
snappendf(buf, cnt, "\n");
}
return strlen(b);
}
static ssize_t
nouveau_sysfs_pstate_set(struct device *d, struct device_attribute *a,
const char *buf, size_t count)
{
struct nouveau_sysfs *sysfs = nouveau_sysfs(drm_device(d));
struct nvif_control_pstate_user_v0 args = { .pwrsrc = -EINVAL };
long value, ret;
char *tmp;
if ((tmp = strchr(buf, '\n')))
*tmp = '\0';
if (!strncasecmp(buf, "dc:", 3)) {
args.pwrsrc = 0;
buf += 3;
} else
if (!strncasecmp(buf, "ac:", 3)) {
args.pwrsrc = 1;
buf += 3;
}
if (!strcasecmp(buf, "none"))
args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_UNKNOWN;
else
if (!strcasecmp(buf, "auto"))
args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_PERFMON;
else {
ret = kstrtol(buf, 16, &value);
if (ret)
return ret;
args.ustate = value;
}
ret = nvif_mthd(&sysfs->ctrl, NVIF_CONTROL_PSTATE_USER,
&args, sizeof(args));
if (ret < 0)
return ret;
return count;
}
static DEVICE_ATTR(pstate, S_IRUGO | S_IWUSR,
nouveau_sysfs_pstate_get, nouveau_sysfs_pstate_set);
void
nouveau_sysfs_fini(struct drm_device *dev)
{
struct nouveau_sysfs *sysfs = nouveau_sysfs(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvif_device *device = &drm->device;
if (sysfs && sysfs->ctrl.priv) {
device_remove_file(nv_device_base(nvkm_device(device)), &dev_attr_pstate);
nvif_object_fini(&sysfs->ctrl);
}
drm->sysfs = NULL;
kfree(sysfs);
}
int
nouveau_sysfs_init(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvif_device *device = &drm->device;
struct nouveau_sysfs *sysfs;
int ret;
if (!nouveau_pstate)
return 0;
sysfs = drm->sysfs = kzalloc(sizeof(*sysfs), GFP_KERNEL);
if (!sysfs)
return -ENOMEM;
ret = nvif_object_init(nvif_object(device), NULL, NVDRM_CONTROL,
NVIF_IOCTL_NEW_V0_CONTROL, NULL, 0,
&sysfs->ctrl);
if (ret == 0)
device_create_file(nv_device_base(nvkm_device(device)), &dev_attr_pstate);
return 0;
}
static int
nouveau_channel_prep(struct nouveau_drm *drm, struct nvif_device *device,
u32 size, struct nouveau_channel **pchan)
{
struct nouveau_cli *cli = (void *)device->object.client;
struct nvkm_mmu *mmu = nvxx_mmu(device);
struct nv_dma_v0 args = {};
struct nouveau_channel *chan;
u32 target;
int ret;
chan = *pchan = kzalloc(sizeof(*chan), GFP_KERNEL);
if (!chan)
return -ENOMEM;
chan->device = device;
chan->drm = drm;
/* allocate memory for dma push buffer */
target = TTM_PL_FLAG_TT | TTM_PL_FLAG_UNCACHED;
if (nouveau_vram_pushbuf)
target = TTM_PL_FLAG_VRAM;
ret = nouveau_bo_new(drm->dev, size, 0, target, 0, 0, NULL, NULL,
&chan->push.buffer);
if (ret == 0) {
ret = nouveau_bo_pin(chan->push.buffer, target, false);
if (ret == 0)
ret = nouveau_bo_map(chan->push.buffer);
}
if (ret) {
nouveau_channel_del(pchan);
return ret;
}
/* create dma object covering the *entire* memory space that the
* pushbuf lives in, this is because the GEM code requires that
* we be able to call out to other (indirect) push buffers
*/
chan->push.vma.offset = chan->push.buffer->bo.offset;
if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
ret = nouveau_bo_vma_add(chan->push.buffer, cli->vm,
&chan->push.vma);
if (ret) {
nouveau_channel_del(pchan);
return ret;
}
args.target = NV_DMA_V0_TARGET_VM;
args.access = NV_DMA_V0_ACCESS_VM;
args.start = 0;
args.limit = cli->vm->mmu->limit - 1;
} else
if (chan->push.buffer->bo.mem.mem_type == TTM_PL_VRAM) {
if (device->info.family == NV_DEVICE_INFO_V0_TNT) {
/* nv04 vram pushbuf hack, retarget to its location in
* the framebuffer bar rather than direct vram access..
* nfi why this exists, it came from the -nv ddx.
*/
args.target = NV_DMA_V0_TARGET_PCI;
args.access = NV_DMA_V0_ACCESS_RDWR;
args.start = nvxx_device(device)->func->
resource_addr(nvxx_device(device), 1);
args.limit = args.start + device->info.ram_user - 1;
} else {
args.target = NV_DMA_V0_TARGET_VRAM;
args.access = NV_DMA_V0_ACCESS_RDWR;
args.start = 0;
args.limit = device->info.ram_user - 1;
}
} else {
if (chan->drm->agp.bridge) {
args.target = NV_DMA_V0_TARGET_AGP;
args.access = NV_DMA_V0_ACCESS_RDWR;
args.start = chan->drm->agp.base;
args.limit = chan->drm->agp.base +
chan->drm->agp.size - 1;
} else {
args.target = NV_DMA_V0_TARGET_VM;
args.access = NV_DMA_V0_ACCESS_RDWR;
args.start = 0;
args.limit = mmu->limit - 1;
}
}
ret = nvif_object_init(&device->object, 0, NV_DMA_FROM_MEMORY,
&args, sizeof(args), &chan->push.ctxdma);
if (ret) {
nouveau_channel_del(pchan);
return ret;
}
return 0;
}
static int
nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
{
struct nvif_device *device = chan->device;
struct nouveau_cli *cli = (void *)chan->user.client;
struct nvkm_mmu *mmu = nvxx_mmu(device);
struct nv_dma_v0 args = {};
int ret, i;
nvif_object_map(&chan->user);
/* allocate dma objects to cover all allowed vram, and gart */
if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
args.target = NV_DMA_V0_TARGET_VM;
args.access = NV_DMA_V0_ACCESS_VM;
args.start = 0;
args.limit = cli->vm->mmu->limit - 1;
} else {
args.target = NV_DMA_V0_TARGET_VRAM;
args.access = NV_DMA_V0_ACCESS_RDWR;
args.start = 0;
args.limit = device->info.ram_user - 1;
}
ret = nvif_object_init(&chan->user, vram, NV_DMA_IN_MEMORY,
&args, sizeof(args), &chan->vram);
if (ret)
return ret;
if (device->info.family >= NV_DEVICE_INFO_V0_TESLA) {
args.target = NV_DMA_V0_TARGET_VM;
args.access = NV_DMA_V0_ACCESS_VM;
args.start = 0;
args.limit = cli->vm->mmu->limit - 1;
} else
if (chan->drm->agp.bridge) {
args.target = NV_DMA_V0_TARGET_AGP;
args.access = NV_DMA_V0_ACCESS_RDWR;
args.start = chan->drm->agp.base;
args.limit = chan->drm->agp.base +
chan->drm->agp.size - 1;
} else {
args.target = NV_DMA_V0_TARGET_VM;
args.access = NV_DMA_V0_ACCESS_RDWR;
args.start = 0;
args.limit = mmu->limit - 1;
}
ret = nvif_object_init(&chan->user, gart, NV_DMA_IN_MEMORY,
&args, sizeof(args), &chan->gart);
if (ret)
return ret;
}
/* initialise dma tracking parameters */
switch (chan->user.oclass & 0x00ff) {
case 0x006b:
case 0x006e:
chan->user_put = 0x40;
chan->user_get = 0x44;
chan->dma.max = (0x10000 / 4) - 2;
break;
default:
chan->user_put = 0x40;
chan->user_get = 0x44;
chan->user_get_hi = 0x60;
chan->dma.ib_base = 0x10000 / 4;
chan->dma.ib_max = (0x02000 / 8) - 1;
chan->dma.ib_put = 0;
chan->dma.ib_free = chan->dma.ib_max - chan->dma.ib_put;
chan->dma.max = chan->dma.ib_base;
break;
}
chan->dma.put = 0;
chan->dma.cur = chan->dma.put;
chan->dma.free = chan->dma.max - chan->dma.cur;
ret = RING_SPACE(chan, NOUVEAU_DMA_SKIPS);
if (ret)
return ret;
for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
OUT_RING(chan, 0x00000000);
/* allocate software object class (used for fences on <= nv05) */
if (device->info.family < NV_DEVICE_INFO_V0_CELSIUS) {
ret = nvif_object_init(&chan->user, 0x006e,
NVIF_CLASS_SW_NV04,
NULL, 0, &chan->nvsw);
if (ret)
return ret;
ret = RING_SPACE(chan, 2);
if (ret)
return ret;
BEGIN_NV04(chan, NvSubSw, 0x0000, 1);
OUT_RING (chan, chan->nvsw.handle);
FIRE_RING (chan);
}
/* initialise synchronisation */
return nouveau_fence(chan->drm)->context_new(chan);
}
static int
nouveau_channel_ind(struct nouveau_drm *drm, struct nvif_device *device,
u32 engine, struct nouveau_channel **pchan)
{
static const u16 oclasses[] = { MAXWELL_CHANNEL_GPFIFO_A,
KEPLER_CHANNEL_GPFIFO_B,
KEPLER_CHANNEL_GPFIFO_A,
FERMI_CHANNEL_GPFIFO,
G82_CHANNEL_GPFIFO,
NV50_CHANNEL_GPFIFO,
0 };
const u16 *oclass = oclasses;
union {
struct nv50_channel_gpfifo_v0 nv50;
struct fermi_channel_gpfifo_v0 fermi;
struct kepler_channel_gpfifo_a_v0 kepler;
} args;
struct nouveau_channel *chan;
u32 size;
int ret;
/* allocate dma push buffer */
ret = nouveau_channel_prep(drm, device, 0x12000, &chan);
*pchan = chan;
if (ret)
return ret;
/* create channel object */
do {
if (oclass[0] >= KEPLER_CHANNEL_GPFIFO_A) {
args.kepler.version = 0;
args.kepler.engines = engine;
args.kepler.ilength = 0x02000;
args.kepler.ioffset = 0x10000 + chan->push.vma.offset;
args.kepler.vm = 0;
size = sizeof(args.kepler);
} else
if (oclass[0] >= FERMI_CHANNEL_GPFIFO) {
args.fermi.version = 0;
args.fermi.ilength = 0x02000;
args.fermi.ioffset = 0x10000 + chan->push.vma.offset;
args.fermi.vm = 0;
size = sizeof(args.fermi);
} else {
args.nv50.version = 0;
args.nv50.ilength = 0x02000;
args.nv50.ioffset = 0x10000 + chan->push.vma.offset;
args.nv50.pushbuf = nvif_handle(&chan->push.ctxdma);
args.nv50.vm = 0;
size = sizeof(args.nv50);
}
ret = nvif_object_init(&device->object, 0, *oclass++,
&args, size, &chan->user);
if (ret == 0) {
if (chan->user.oclass >= KEPLER_CHANNEL_GPFIFO_A)
chan->chid = args.kepler.chid;
else
if (chan->user.oclass >= FERMI_CHANNEL_GPFIFO)
chan->chid = args.fermi.chid;
else
chan->chid = args.nv50.chid;
return ret;
}
} while (*oclass);
nouveau_channel_del(pchan);
return ret;
}
static int
nouveau_debugfs_pstate_get(struct seq_file *m, void *data)
{
struct drm_device *drm = m->private;
struct nouveau_debugfs *debugfs = nouveau_debugfs(drm);
struct nvif_object *ctrl = &debugfs->ctrl;
struct nvif_control_pstate_info_v0 info = {};
int ret, i;
if (!debugfs)
return -ENODEV;
ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_INFO, &info, sizeof(info));
if (ret)
return ret;
for (i = 0; i < info.count + 1; i++) {
const s32 state = i < info.count ? i :
NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT;
struct nvif_control_pstate_attr_v0 attr = {
.state = state,
.index = 0,
};
ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_ATTR,
&attr, sizeof(attr));
if (ret)
return ret;
if (i < info.count)
seq_printf(m, "%02x:", attr.state);
else
seq_printf(m, "%s:", info.pwrsrc == 0 ? "DC" :
info.pwrsrc == 1 ? "AC" : "--");
attr.index = 0;
do {
attr.state = state;
ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_ATTR,
&attr, sizeof(attr));
if (ret)
return ret;
seq_printf(m, " %s %d", attr.name, attr.min);
if (attr.min != attr.max)
seq_printf(m, "-%d", attr.max);
seq_printf(m, " %s", attr.unit);
} while (attr.index);
if (state >= 0) {
if (info.ustate_ac == state)
seq_printf(m, " AC");
if (info.ustate_dc == state)
seq_printf(m, " DC");
if (info.pstate == state)
seq_printf(m, " *");
} else {
if (info.ustate_ac < -1)
seq_printf(m, " AC");
if (info.ustate_dc < -1)
seq_printf(m, " DC");
}
seq_printf(m, "\n");
}
return 0;
}
static ssize_t
nouveau_debugfs_pstate_set(struct file *file, const char __user *ubuf,
size_t len, loff_t *offp)
{
struct seq_file *m = file->private_data;
struct drm_device *drm = m->private;
struct nouveau_debugfs *debugfs = nouveau_debugfs(drm);
struct nvif_object *ctrl = &debugfs->ctrl;
struct nvif_control_pstate_user_v0 args = { .pwrsrc = -EINVAL };
char buf[32] = {}, *tmp, *cur = buf;
long value, ret;
if (!debugfs)
return -ENODEV;
if (len >= sizeof(buf))
return -EINVAL;
if (copy_from_user(buf, ubuf, len))
return -EFAULT;
if ((tmp = strchr(buf, '\n')))
*tmp = '\0';
if (!strncasecmp(cur, "dc:", 3)) {
args.pwrsrc = 0;
cur += 3;
} else
if (!strncasecmp(cur, "ac:", 3)) {
args.pwrsrc = 1;
cur += 3;
}
if (!strcasecmp(cur, "none"))
args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_UNKNOWN;
else
if (!strcasecmp(cur, "auto"))
args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_PERFMON;
else {
ret = kstrtol(cur, 16, &value);
if (ret)
return ret;
args.ustate = value;
}
ret = pm_runtime_get_sync(drm->dev);
if (ret < 0 && ret != -EACCES)
return ret;
ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_USER, &args, sizeof(args));
pm_runtime_put_autosuspend(drm->dev);
if (ret < 0)
return ret;
return len;
}
static int
nouveau_debugfs_pstate_open(struct inode *inode, struct file *file)
{
return single_open(file, nouveau_debugfs_pstate_get, inode->i_private);
}
static const struct file_operations nouveau_pstate_fops = {
.owner = THIS_MODULE,
.open = nouveau_debugfs_pstate_open,
.read = seq_read,
.write = nouveau_debugfs_pstate_set,
};
static struct drm_info_list nouveau_debugfs_list[] = {
{ "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
{ "strap_peek", nouveau_debugfs_strap_peek, 0, NULL },
};
#define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
static const struct nouveau_debugfs_files {
const char *name;
const struct file_operations *fops;
} nouveau_debugfs_files[] = {
{"pstate", &nouveau_pstate_fops},
};
int
nouveau_drm_debugfs_init(struct drm_minor *minor)
{
struct nouveau_drm *drm = nouveau_drm(minor->dev);
struct dentry *dentry;
int i, ret;
for (i = 0; i < ARRAY_SIZE(nouveau_debugfs_files); i++) {
dentry = debugfs_create_file(nouveau_debugfs_files[i].name,
S_IRUGO | S_IWUSR,
minor->debugfs_root, minor->dev,
nouveau_debugfs_files[i].fops);
if (!dentry)
return -ENOMEM;
}
ret = drm_debugfs_create_files(nouveau_debugfs_list,
NOUVEAU_DEBUGFS_ENTRIES,
minor->debugfs_root, minor);
if (ret)
return ret;
/* Set the size of the vbios since we know it, and it's confusing to
* userspace if it wants to seek() but the file has a length of 0
*/
dentry = debugfs_lookup("vbios.rom", minor->debugfs_root);
if (!dentry)
return 0;
d_inode(dentry)->i_size = drm->vbios.length;
dput(dentry);
return 0;
}
int
nouveau_debugfs_init(struct nouveau_drm *drm)
{
int ret;
drm->debugfs = kzalloc(sizeof(*drm->debugfs), GFP_KERNEL);
if (!drm->debugfs)
return -ENOMEM;
ret = nvif_object_init(&drm->client.device.object, 0,
NVIF_CLASS_CONTROL, NULL, 0,
&drm->debugfs->ctrl);
if (ret)
return ret;
return 0;
}
void
nouveau_debugfs_fini(struct nouveau_drm *drm)
{
if (drm->debugfs && drm->debugfs->ctrl.priv)
nvif_object_fini(&drm->debugfs->ctrl);
kfree(drm->debugfs);
drm->debugfs = NULL;
}