static int
nouveau_channel_ind(struct nouveau_drm *drm, struct nvif_device *device,
u32 handle, u32 engine, struct nouveau_channel **pchan)
{
static const u16 oclasses[] = { 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 kepler_channel_gpfifo_a_v0 kepler;
} args, *retn;
struct nouveau_channel *chan;
u32 size;
int ret;
/* allocate dma push buffer */
ret = nouveau_channel_prep(drm, device, handle, 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.engine = engine;
args.kepler.pushbuf = chan->push.ctxdma.handle;
args.kepler.ilength = 0x02000;
args.kepler.ioffset = 0x10000 + chan->push.vma.offset;
size = sizeof(args.kepler);
} else {
args.nv50.version = 0;
args.nv50.pushbuf = chan->push.ctxdma.handle;
args.nv50.ilength = 0x02000;
args.nv50.ioffset = 0x10000 + chan->push.vma.offset;
size = sizeof(args.nv50);
}
ret = nvif_object_new(nvif_object(device), handle, *oclass++,
&args, size, &chan->object);
if (ret == 0) {
retn = chan->object->data;
if (chan->object->oclass >= KEPLER_CHANNEL_GPFIFO_A)
chan->chid = retn->kepler.chid;
else
chan->chid = retn->nv50.chid;
return ret;
}
} while (*oclass);
nouveau_channel_del(pchan);
return ret;
}
static int
nouveau_channel_dma(struct nouveau_drm *drm, struct nvif_device *device,
u32 handle, 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, *retn;
struct nouveau_channel *chan;
int ret;
/* allocate dma push buffer */
ret = nouveau_channel_prep(drm, device, handle, 0x10000, &chan);
*pchan = chan;
if (ret)
return ret;
/* create channel object */
args.version = 0;
args.pushbuf = chan->push.ctxdma.handle;
args.offset = chan->push.vma.offset;
do {
ret = nvif_object_new(nvif_object(device), handle, *oclass++,
&args, sizeof(args), &chan->object);
if (ret == 0) {
retn = chan->object->data;
chan->chid = retn->chid;
return ret;
}
} while (ret && *oclass);
nouveau_channel_del(pchan);
return ret;
}
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 handle, u32 size, struct nouveau_channel **pchan)
{
struct nouveau_cli *cli = (void *)nvif_client(&device->base);
struct nouveau_vmmgr *vmm = nvkm_vmmgr(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;
nvif_device_ref(device, &chan->device);
chan->drm = drm;
/* allocate memory for dma push buffer */
target = TTM_PL_FLAG_TT;
if (nouveau_vram_pushbuf)
target = TTM_PL_FLAG_VRAM;
ret = nouveau_bo_new(drm->dev, size, 0, target, 0, 0, NULL,
&chan->push.buffer);
if (ret == 0) {
ret = nouveau_bo_pin(chan->push.buffer, target);
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->vmm->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 = nv_device_resource_start(nvkm_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.stat == ENABLED) {
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 = vmm->limit - 1;
}
}
ret = nvif_object_init(nvif_object(device), NULL, NVDRM_PUSH |
(handle & 0xffff), NV_DMA_FROM_MEMORY,
&args, sizeof(args), &chan->push.ctxdma);
if (ret) {
nouveau_channel_del(pchan);
return ret;
}
return 0;
}