int
nouveau_bar_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass, int length, void **pobject)
{
struct nouveau_device *device = nv_device(parent);
struct nouveau_bar *bar;
int ret;
ret = nouveau_subdev_create_(parent, engine, oclass, 0, "BARCTL",
"bar", length, pobject);
bar = *pobject;
if (ret)
return ret;
if (nv_device_resource_len(device, 3) != 0) {
bar->iomem = ioremap(nv_device_resource_start(device, 3),
nv_device_resource_len(device, 3));
if (!bar->iomem)
nv_warn(bar, "PRAMIN ioremap failed\n");
}
return 0;
}
static int
nv40_instmem_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 size,
struct nouveau_object **pobject)
{
struct nouveau_device *device = nv_device(parent);
struct nv04_instmem_priv *priv;
int ret, bar, vs;
ret = nouveau_instmem_create(parent, engine, oclass, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
/* map bar */
if (nv_device_resource_len(device, 2))
bar = 2;
else
bar = 3;
#ifdef __NetBSD__
priv->iomemt = nv_device_resource_tag(device, bar);
priv->iomemsz = nv_device_resource_len(device, bar);
ret = bus_space_map(priv->iomemt,
nv_device_resource_start(device, bar),
priv->iomemsz, 0, &priv->iomemh);
if (ret) {
priv->iomemsz = 0;
nv_error(priv, "unable to map PRAMIN BAR: %d\n", ret);
return -EFAULT;
}
#else
priv->iomem = ioremap(nv_device_resource_start(device, bar),
nv_device_resource_len(device, bar));
if (!priv->iomem) {
nv_error(priv, "unable to map PRAMIN BAR\n");
return -EFAULT;
}
#endif
/* PRAMIN aperture maps over the end of vram, reserve enough space
* to fit graphics contexts for every channel, the magics come
* from engine/graph/nv40.c
*/
vs = hweight8((nv_rd32(priv, 0x001540) & 0x0000ff00) >> 8);
if (device->chipset == 0x40) priv->base.reserved = 0x6aa0 * vs;
else if (device->chipset < 0x43) priv->base.reserved = 0x4f00 * vs;
else if (nv44_graph_class(priv)) priv->base.reserved = 0x4980 * vs;
else priv->base.reserved = 0x4a40 * vs;
priv->base.reserved += 16 * 1024;
priv->base.reserved *= 32; /* per-channel */
priv->base.reserved += 512 * 1024; /* pci(e)gart table */
priv->base.reserved += 512 * 1024; /* object storage */
priv->base.reserved = round_up(priv->base.reserved, 4096);
ret = nouveau_mm_init(&priv->heap, 0, priv->base.reserved, 1);
if (ret)
return ret;
/* 0x00000-0x10000: reserve for probable vbios image */
ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x10000, 0, 0,
&priv->vbios);
if (ret)
return ret;
/* 0x10000-0x18000: reserve for RAMHT */
ret = nouveau_ramht_new(nv_object(priv), NULL, 0x08000, 0,
&priv->ramht);
if (ret)
return ret;
/* 0x18000-0x18200: reserve for RAMRO
* 0x18200-0x20000: padding
*/
ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x08000, 0, 0,
&priv->ramro);
if (ret)
return ret;
/* 0x20000-0x21000: reserve for RAMFC
* 0x21000-0x40000: padding and some unknown crap
*/
ret = nouveau_gpuobj_new(nv_object(priv), NULL, 0x20000, 0,
NVOBJ_FLAG_ZERO_ALLOC, &priv->ramfc);
if (ret)
return ret;
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;
}
int
nouveau_fifo_channel_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass,
int bar, u32 addr, u32 size, u32 pushbuf,
u64 engmask, int len, void **ptr)
{
struct nouveau_device *device = nv_device(engine);
struct nouveau_fifo *priv = (void *)engine;
struct nouveau_fifo_chan *chan;
struct nouveau_dmaeng *dmaeng;
unsigned long flags;
int ret;
/* create base object class */
ret = nouveau_namedb_create_(parent, engine, oclass, 0, NULL,
engmask, len, ptr);
chan = *ptr;
if (ret)
return ret;
/* validate dma object representing push buffer */
chan->pushdma = (void *)nouveau_handle_ref(parent, pushbuf);
if (!chan->pushdma)
return -ENOENT;
dmaeng = (void *)chan->pushdma->base.engine;
switch (chan->pushdma->base.oclass->handle) {
case NV_DMA_FROM_MEMORY_CLASS:
case NV_DMA_IN_MEMORY_CLASS:
break;
default:
return -EINVAL;
}
ret = dmaeng->bind(dmaeng, parent, chan->pushdma, &chan->pushgpu);
if (ret)
return ret;
/* find a free fifo channel */
spin_lock_irqsave(&priv->lock, flags);
for (chan->chid = priv->min; chan->chid < priv->max; chan->chid++) {
if (!priv->channel[chan->chid]) {
priv->channel[chan->chid] = nv_object(chan);
break;
}
}
spin_unlock_irqrestore(&priv->lock, flags);
if (chan->chid == priv->max) {
nv_error(priv, "no free channels\n");
return -ENOSPC;
}
/* map fifo control registers */
#ifdef __NetBSD__
if (bar == 0) {
/*
* We already map BAR 0 in the engine device base, so
* grab a subregion of that.
*/
bus_space_tag_t mmiot = nv_subdev(device)->mmiot;
bus_space_handle_t mmioh = nv_subdev(device)->mmioh;
bus_size_t mmiosz = nv_subdev(device)->mmiosz;
/* Check whether it lies inside the region. */
if (mmiosz < addr ||
mmiosz - addr < chan->chid*size ||
mmiosz - addr - chan->chid*size < size) {
ret = EIO;
nv_error(priv, "fifo channel out of range:"
" addr 0x%"PRIxMAX
" chid 0x%"PRIxMAX" size 0x%"PRIxMAX
" mmiosz 0x%"PRIxMAX"\n",
(uintmax_t)addr,
(uintmax_t)chan->chid, (uintmax_t)size,
(uintmax_t)mmiosz);
return ret;
}
/* Grab a subregion. */
/* XXX errno NetBSD->Linux */
ret = -bus_space_subregion(mmiot, mmioh,
(addr + chan->chid*size), size, &chan->bsh);
if (ret) {
nv_error(priv, "bus_space_subregion failed: %d\n",
ret);
return ret;
}
/* Success! No need to unmap a subregion. */
chan->mapped = false;
chan->bst = mmiot;
} else {
chan->bst = nv_device_resource_tag(device, bar);
/* XXX errno NetBSD->Linux */
ret = -bus_space_map(chan->bst,
(nv_device_resource_start(device, bar) +
addr + (chan->chid * size)),
size, 0, &chan->bsh);
if (ret) {
nv_error(priv, "failed to map fifo channel:"
" bar %d addr %"PRIxMAX" + %"PRIxMAX
" + (%"PRIxMAX" * %"PRIxMAX") = %"PRIxMAX
" size %"PRIxMAX": %d\n",
bar,
(uintmax_t)nv_device_resource_start(device, bar),
(uintmax_t)addr,
(uintmax_t)chan->chid,
(uintmax_t)size,
(uintmax_t)(nv_device_resource_start(device, bar) +
addr + (chan->chid * size)),
(uintmax_t)size,
ret);
return ret;
}
chan->mapped = true;
}
#else
chan->user = ioremap(nv_device_resource_start(device, bar) + addr +
(chan->chid * size), size);
if (!chan->user)
return -EFAULT;
#endif
nouveau_event_trigger(priv->cevent, 0);
chan->size = size;
return 0;
}
int
nouveau_fifo_channel_create_(struct nouveau_object *parent,
struct nouveau_object *engine,
struct nouveau_oclass *oclass,
int bar, u32 addr, u32 size, u32 pushbuf,
u64 engmask, int len, void **ptr)
{
struct nouveau_device *device = nv_device(engine);
struct nouveau_fifo *priv = (void *)engine;
struct nouveau_fifo_chan *chan;
struct nouveau_dmaeng *dmaeng;
unsigned long flags;
int ret;
/* create base object class */
ret = nouveau_namedb_create_(parent, engine, oclass, 0, NULL,
engmask, len, ptr);
chan = *ptr;
if (ret)
return ret;
/* validate dma object representing push buffer */
chan->pushdma = (void *)nouveau_handle_ref(parent, pushbuf);
if (!chan->pushdma)
return -ENOENT;
dmaeng = (void *)chan->pushdma->base.engine;
switch (chan->pushdma->base.oclass->handle) {
case NV_DMA_FROM_MEMORY_CLASS:
case NV_DMA_IN_MEMORY_CLASS:
break;
default:
return -EINVAL;
}
ret = dmaeng->bind(dmaeng, parent, chan->pushdma, &chan->pushgpu);
if (ret)
return ret;
/* find a free fifo channel */
spin_lock_irqsave(&priv->lock, flags);
for (chan->chid = priv->min; chan->chid < priv->max; chan->chid++) {
if (!priv->channel[chan->chid]) {
priv->channel[chan->chid] = nv_object(chan);
break;
}
}
spin_unlock_irqrestore(&priv->lock, flags);
if (chan->chid == priv->max) {
nv_error(priv, "no free channels\n");
return -ENOSPC;
}
/* map fifo control registers */
#ifdef __NetBSD__
chan->bst = nv_device_resource_tag(device, bar);
/* XXX errno NetBSD->Linux */
ret = -bus_space_map(chan->bst, nv_device_resource_start(device, bar) +
addr + (chan->chid * size), size, 0, &chan->bsh);
if (ret)
return ret;
chan->mapped = true;
#else
chan->user = ioremap(nv_device_resource_start(device, bar) + addr +
(chan->chid * size), size);
if (!chan->user)
return -EFAULT;
#endif
nouveau_event_trigger(priv->cevent, 0);
chan->size = size;
return 0;
}
