- 根目录:
- drivers
- gpu
- drm
- nouveau
- nouveau_object.c
/*
* Copyright (C) 2006 Ben Skeggs.
*
* All Rights Reserved.
*
* 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 (including the
* next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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 <darktama@iinet.net.au>
*/
#include "drmP.h"
#include "drm.h"
#include "nouveau_drv.h"
#include "nouveau_drm.h"
#include "nouveau_ramht.h"
#include "nouveau_vm.h"
#include "nv50_display.h"
struct nouveau_gpuobj_method {
struct list_head head;
u32 mthd;
int (*exec)(struct nouveau_channel *, u32 class, u32 mthd, u32 data);
};
struct nouveau_gpuobj_class {
struct list_head head;
struct list_head methods;
u32 id;
u32 engine;
};
int
nouveau_gpuobj_class_new(struct drm_device *dev, u32 class, u32 engine)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj_class *oc;
oc = kzalloc(sizeof(*oc), GFP_KERNEL);
if (!oc)
return -ENOMEM;
INIT_LIST_HEAD(&oc->methods);
oc->id = class;
oc->engine = engine;
list_add(&oc->head, &dev_priv->classes);
return 0;
}
int
nouveau_gpuobj_mthd_new(struct drm_device *dev, u32 class, u32 mthd,
int (*exec)(struct nouveau_channel *, u32, u32, u32))
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj_method *om;
struct nouveau_gpuobj_class *oc;
list_for_each_entry(oc, &dev_priv->classes, head) {
if (oc->id == class)
goto found;
}
return -EINVAL;
found:
om = kzalloc(sizeof(*om), GFP_KERNEL);
if (!om)
return -ENOMEM;
om->mthd = mthd;
om->exec = exec;
list_add(&om->head, &oc->methods);
return 0;
}
int
nouveau_gpuobj_mthd_call(struct nouveau_channel *chan,
u32 class, u32 mthd, u32 data)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct nouveau_gpuobj_method *om;
struct nouveau_gpuobj_class *oc;
list_for_each_entry(oc, &dev_priv->classes, head) {
if (oc->id != class)
continue;
list_for_each_entry(om, &oc->methods, head) {
if (om->mthd == mthd)
return om->exec(chan, class, mthd, data);
}
}
return -ENOENT;
}
int
nouveau_gpuobj_mthd_call2(struct drm_device *dev, int chid,
u32 class, u32 mthd, u32 data)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan = NULL;
unsigned long flags;
int ret = -EINVAL;
spin_lock_irqsave(&dev_priv->channels.lock, flags);
if (chid >= 0 && chid < dev_priv->engine.fifo.channels)
chan = dev_priv->channels.ptr[chid];
if (chan)
ret = nouveau_gpuobj_mthd_call(chan, class, mthd, data);
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
return ret;
}
/* NVidia uses context objects to drive drawing operations.
Context objects can be selected into 8 subchannels in the FIFO,
and then used via DMA command buffers.
A context object is referenced by a user defined handle (CARD32). The HW
looks up graphics objects in a hash table in the instance RAM.
An entry in the hash table consists of 2 CARD32. The first CARD32 contains
the handle, the second one a bitfield, that contains the address of the
object in instance RAM.
The format of the second CARD32 seems to be:
NV4 to NV30:
15: 0 instance_addr >> 4
17:16 engine (here uses 1 = graphics)
28:24 channel id (here uses 0)
31 valid (use 1)
NV40:
15: 0 instance_addr >> 4 (maybe 19-0)
21:20 engine (here uses 1 = graphics)
I'm unsure about the other bits, but using 0 seems to work.
The key into the hash table depends on the object handle and channel id and
is given as:
*/
int
nouveau_gpuobj_new(struct drm_device *dev, struct nouveau_channel *chan,
uint32_t size, int align, uint32_t flags,
struct nouveau_gpuobj **gpuobj_ret)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem;
struct nouveau_gpuobj *gpuobj;
struct drm_mm_node *ramin = NULL;
int ret, i;
NV_DEBUG(dev, "ch%d size=%u align=%d flags=0x%08x\n",
chan ? chan->id : -1, size, align, flags);
gpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL);
if (!gpuobj)
return -ENOMEM;
NV_DEBUG(dev, "gpuobj %p\n", gpuobj);
gpuobj->dev = dev;
gpuobj->flags = flags;
kref_init(&gpuobj->refcount);
gpuobj->size = size;
spin_lock(&dev_priv->ramin_lock);
list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list);
spin_unlock(&dev_priv->ramin_lock);
if (!(flags & NVOBJ_FLAG_VM) && chan) {
ramin = drm_mm_search_free(&chan->ramin_heap, size, align, 0);
if (ramin)
ramin = drm_mm_get_block(ramin, size, align);
if (!ramin) {
nouveau_gpuobj_ref(NULL, &gpuobj);
return -ENOMEM;
}
gpuobj->pinst = chan->ramin->pinst;
if (gpuobj->pinst != ~0)
gpuobj->pinst += ramin->start;
gpuobj->cinst = ramin->start;
gpuobj->vinst = ramin->start + chan->ramin->vinst;
gpuobj->node = ramin;
} else {
ret = instmem->get(gpuobj, chan, size, align);
if (ret) {
nouveau_gpuobj_ref(NULL, &gpuobj);
return ret;
}
ret = -ENOSYS;
if (!(flags & NVOBJ_FLAG_DONT_MAP))
ret = instmem->map(gpuobj);
if (ret)
gpuobj->pinst = ~0;
gpuobj->cinst = NVOBJ_CINST_GLOBAL;
}
if (gpuobj->flags & NVOBJ_FLAG_ZERO_ALLOC) {
for (i = 0; i < gpuobj->size; i += 4)
nv_wo32(gpuobj, i, 0);
instmem->flush(dev);
}
*gpuobj_ret = gpuobj;
return 0;
}
int
nouveau_gpuobj_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
NV_DEBUG(dev, "\n");
INIT_LIST_HEAD(&dev_priv->gpuobj_list);
INIT_LIST_HEAD(&dev_priv->classes);
spin_lock_init(&dev_priv->ramin_lock);
dev_priv->ramin_base = ~0;
return 0;
}
void
nouveau_gpuobj_takedown(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj_method *om, *tm;
struct nouveau_gpuobj_class *oc, *tc;
NV_DEBUG(dev, "\n");
list_for_each_entry_safe(oc, tc, &dev_priv->classes, head) {
list_for_each_entry_safe(om, tm, &oc->methods, head) {
list_del(&om->head);
kfree(om);
}
list_del(&oc->head);
kfree(oc);
}
BUG_ON(!list_empty(&dev_priv->gpuobj_list));
}
static void
nouveau_gpuobj_del(struct kref *ref)
{
struct nouveau_gpuobj *gpuobj =
container_of(ref, struct nouveau_gpuobj, refcount);
struct drm_device *dev = gpuobj->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem;
int i;
NV_DEBUG(dev, "gpuobj %p\n", gpuobj);
if (gpuobj->node && (gpuobj->flags & NVOBJ_FLAG_ZERO_FREE)) {
for (i = 0; i < gpuobj->size; i += 4)
nv_wo32(gpuobj, i, 0);
instmem->flush(dev);
}
if (gpuobj->dtor)
gpuobj->dtor(dev, gpuobj);
if (gpuobj->cinst == NVOBJ_CINST_GLOBAL) {
if (gpuobj->node) {
instmem->unmap(gpuobj);
instmem->put(gpuobj);
}
} else {
if (gpuobj->node) {
spin_lock(&dev_priv->ramin_lock);
drm_mm_put_block(gpuobj->node);
spin_unlock(&dev_priv->ramin_lock);
}
}
spin_lock(&dev_priv->ramin_lock);
list_del(&gpuobj->list);
spin_unlock(&dev_priv->ramin_lock);
kfree(gpuobj);
}
void
nouveau_gpuobj_ref(struct nouveau_gpuobj *ref, struct nouveau_gpuobj **ptr)
{
if (ref)
kref_get(&ref->refcount);
if (*ptr)
kref_put(&(*ptr)->refcount, nouveau_gpuobj_del);
*ptr = ref;
}
int
nouveau_gpuobj_new_fake(struct drm_device *dev, u32 pinst, u64 vinst,
u32 size, u32 flags, struct nouveau_gpuobj **pgpuobj)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *gpuobj = NULL;
int i;
NV_DEBUG(dev,
"pinst=0x%08x vinst=0x%010llx size=0x%08x flags=0x%08x\n",
pinst, vinst, size, flags);
gpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL);
if (!gpuobj)
return -ENOMEM;
NV_DEBUG(dev, "gpuobj %p\n", gpuobj);
gpuobj->dev = dev;
gpuobj->flags = flags;
kref_init(&gpuobj->refcount);
gpuobj->size = size;
gpuobj->pinst = pinst;
gpuobj->cinst = NVOBJ_CINST_GLOBAL;
gpuobj->vinst = vinst;
if (gpuobj->flags & NVOBJ_FLAG_ZERO_ALLOC) {
for (i = 0; i < gpuobj->size; i += 4)
nv_wo32(gpuobj, i, 0);
dev_priv->engine.instmem.flush(dev);
}
spin_lock(&dev_priv->ramin_lock);
list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list);
spin_unlock(&dev_priv->ramin_lock);
*pgpuobj = gpuobj;
return 0;
}
/*
DMA objects are used to reference a piece of memory in the
framebuffer, PCI or AGP address space. Each object is 16 bytes big
and looks as follows:
entry[0]
11:0 class (seems like I can always use 0 here)
12 page table present?
13 page entry linear?
15:14 access: 0 rw, 1 ro, 2 wo
17:16 target: 0 NV memory, 1 NV memory tiled, 2 PCI, 3 AGP
31:20 dma adjust (bits 0-11 of the address)
entry[1]
dma limit (size of transfer)
entry[X]
1 0 readonly, 1 readwrite
31:12 dma frame address of the page (bits 12-31 of the address)
entry[N]
page table terminator, same value as the first pte, as does nvidia
rivatv uses 0xffffffff
Non linear page tables need a list of frame addresses afterwards,
the rivatv project has some info on this.
The method below creates a DMA object in instance RAM and returns a handle
to it that can be used to set up context objects.
*/
void
nv50_gpuobj_dma_init(struct nouveau_gpuobj *obj, u32 offset, int class,
u64 base, u64 size, int target, int access,
u32 type, u32 comp)
{
struct drm_nouveau_private *dev_priv = obj->dev->dev_private;
struct nouveau_instmem_engine *pinstmem = &dev_priv->engine.instmem;
u32 flags0;
flags0 = (comp << 29) | (type << 22) | class;
flags0 |= 0x00100000;
switch (access) {
case NV_MEM_ACCESS_RO: flags0 |= 0x00040000; break;
case NV_MEM_ACCESS_RW:
case NV_MEM_ACCESS_WO: flags0 |= 0x00080000; break;
default:
break;
}
switch (target) {
case NV_MEM_TARGET_VRAM:
flags0 |= 0x00010000;
break;
case NV_MEM_TARGET_PCI:
flags0 |= 0x00020000;
break;
case NV_MEM_TARGET_PCI_NOSNOOP:
flags0 |= 0x00030000;
break;
case NV_MEM_TARGET_GART:
base += dev_priv->gart_info.aper_base;
default:
flags0 &= ~0x00100000;
break;
}
/* convert to base + limit */
size = (base + size) - 1;
nv_wo32(obj, offset + 0x00, flags0);
nv_wo32(obj, offset + 0x04, lower_32_bits(size));
nv_wo32(obj, offset + 0x08, lower_32_bits(base));
nv_wo32(obj, offset + 0x0c, upper_32_bits(size) << 24 |
upper_32_bits(base));
nv_wo32(obj, offset + 0x10, 0x00000000);
nv_wo32(obj, offset + 0x14, 0x00000000);
pinstmem->flush(obj->dev);
}
int
nv50_gpuobj_dma_new(struct nouveau_channel *chan, int class, u64 base, u64 size,
int target, int access, u32 type, u32 comp,
struct nouveau_gpuobj **pobj)
{
struct drm_device *dev = chan->dev;
int ret;
ret = nouveau_gpuobj_new(dev, chan, 24, 16, NVOBJ_FLAG_ZERO_FREE, pobj);
if (ret)
return ret;
nv50_gpuobj_dma_init(*pobj, 0, class, base, size, target,
access, type, comp);
return 0;
}
int
nouveau_gpuobj_dma_new(struct nouveau_channel *chan, int class, u64 base,
u64 size, int access, int target,
struct nouveau_gpuobj **pobj)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct drm_device *dev = chan->dev;
struct nouveau_gpuobj *obj;
u32 flags0, flags2;
int ret;
if (dev_priv->card_type >= NV_50) {
u32 comp = (target == NV_MEM_TARGET_VM) ? NV_MEM_COMP_VM : 0;
u32 type = (target == NV_MEM_TARGET_VM) ? NV_MEM_TYPE_VM : 0;
return nv50_gpuobj_dma_new(chan, class, base, size,
target, access, type, comp, pobj);
}
if (target == NV_MEM_TARGET_GART) {
struct nouveau_gpuobj *gart = dev_priv->gart_info.sg_ctxdma;
if (dev_priv->gart_info.type == NOUVEAU_GART_PDMA) {
if (base == 0) {
nouveau_gpuobj_ref(gart, pobj);
return 0;
}
base = nouveau_sgdma_get_physical(dev, base);
target = NV_MEM_TARGET_PCI;
} else {
base += dev_priv->gart_info.aper_base;
if (dev_priv->gart_info.type == NOUVEAU_GART_AGP)
target = NV_MEM_TARGET_PCI_NOSNOOP;
else
target = NV_MEM_TARGET_PCI;
}
}
flags0 = class;
flags0 |= 0x00003000; /* PT present, PT linear */
flags2 = 0;
switch (target) {
case NV_MEM_TARGET_PCI:
flags0 |= 0x00020000;
break;
case NV_MEM_TARGET_PCI_NOSNOOP:
flags0 |= 0x00030000;
break;
default:
break;
}
switch (access) {
case NV_MEM_ACCESS_RO:
flags0 |= 0x00004000;
break;
case NV_MEM_ACCESS_WO:
flags0 |= 0x00008000;
default:
flags2 |= 0x00000002;
break;
}
flags0 |= (base & 0x00000fff) << 20;
flags2 |= (base & 0xfffff000);
ret = nouveau_gpuobj_new(dev, chan, 16, 16, NVOBJ_FLAG_ZERO_FREE, &obj);
if (ret)
return ret;
nv_wo32(obj, 0x00, flags0);
nv_wo32(obj, 0x04, size - 1);
nv_wo32(obj, 0x08, flags2);
nv_wo32(obj, 0x0c, flags2);
obj->engine = NVOBJ_ENGINE_SW;
obj->class = class;
*pobj = obj;
return 0;
}
/* Context objects in the instance RAM have the following structure.
* On NV40 they are 32 byte long, on NV30 and smaller 16 bytes.
NV4 - NV30:
entry[0]
11:0 class
12 chroma key enable
13 user clip enable
14 swizzle enable
17:15 patch config:
scrcopy_and, rop_and, blend_and, scrcopy, srccopy_pre, blend_pre
18 synchronize enable
19 endian: 1 big, 0 little
21:20 dither mode
23 single step enable
24 patch status: 0 invalid, 1 valid
25 context_surface 0: 1 valid
26 context surface 1: 1 valid
27 context pattern: 1 valid
28 context rop: 1 valid
29,30 context beta, beta4
entry[1]
7:0 mono format
15:8 color format
31:16 notify instance address
entry[2]
15:0 dma 0 instance address
31:16 dma 1 instance address
entry[3]
dma method traps
NV40:
No idea what the exact format is. Here's what can be deducted:
entry[0]:
11:0 class (maybe uses more bits here?)
17 user clip enable
21:19 patch config
25 patch status valid ?
entry[1]:
15:0 DMA notifier (maybe 20:0)
entry[2]:
15:0 DMA 0 instance (maybe 20:0)
24 big endian
entry[3]:
15:0 DMA 1 instance (maybe 20:0)
entry[4]:
entry[5]:
set to 0?
*/
static int
nouveau_gpuobj_sw_new(struct nouveau_channel *chan, u32 handle, u16 class)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct nouveau_gpuobj *gpuobj;
int ret;
gpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL);
if (!gpuobj)
return -ENOMEM;
gpuobj->dev = chan->dev;
gpuobj->engine = NVOBJ_ENGINE_SW;
gpuobj->class = class;
kref_init(&gpuobj->refcount);
gpuobj->cinst = 0x40;
spin_lock(&dev_priv->ramin_lock);
list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list);
spin_unlock(&dev_priv->ramin_lock);
ret = nouveau_ramht_insert(chan, handle, gpuobj);
nouveau_gpuobj_ref(NULL, &gpuobj);
return ret;
}
int
nouveau_gpuobj_gr_new(struct nouveau_channel *chan, u32 handle, int class)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct drm_device *dev = chan->dev;
struct nouveau_gpuobj_class *oc;
int ret;
NV_DEBUG(dev, "ch%d class=0x%04x\n", chan->id, class);
list_for_each_entry(oc, &dev_priv->classes, head) {
struct nouveau_exec_engine *eng = dev_priv->eng[oc->engine];
if (oc->id != class)
continue;
if (oc->engine == NVOBJ_ENGINE_SW)
return nouveau_gpuobj_sw_new(chan, handle, class);
if (!chan->engctx[oc->engine]) {
ret = eng->context_new(chan, oc->engine);
if (ret)
return ret;
}
return eng->object_new(chan, oc->engine, handle, class);
}
NV_ERROR(dev, "illegal object class: 0x%x\n", class);
return -EINVAL;
}
static int
nouveau_gpuobj_channel_init_pramin(struct nouveau_channel *chan)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
uint32_t size;
uint32_t base;
int ret;
NV_DEBUG(dev, "ch%d\n", chan->id);
/* Base amount for object storage (4KiB enough?) */
size = 0x2000;
base = 0;
if (dev_priv->card_type == NV_50) {
/* Various fixed table thingos */
size += 0x1400; /* mostly unknown stuff */
size += 0x4000; /* vm pd */
base = 0x6000;
/* RAMHT, not sure about setting size yet, 32KiB to be safe */
size += 0x8000;
/* RAMFC */
size += 0x1000;
}
ret = nouveau_gpuobj_new(dev, NULL, size, 0x1000, 0, &chan->ramin);
if (ret) {
NV_ERROR(dev, "Error allocating channel PRAMIN: %d\n", ret);
return ret;
}
ret = drm_mm_init(&chan->ramin_heap, base, size - base);
if (ret) {
NV_ERROR(dev, "Error creating PRAMIN heap: %d\n", ret);
nouveau_gpuobj_ref(NULL, &chan->ramin);
return ret;
}
return 0;
}
static int
nvc0_gpuobj_channel_init(struct nouveau_channel *chan, struct nouveau_vm *vm)
{
struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
struct drm_device *dev = chan->dev;
struct nouveau_gpuobj *pgd = NULL;
struct nouveau_vm_pgd *vpgd;
int ret, i;
ret = nouveau_gpuobj_new(dev, NULL, 4096, 0x1000, 0, &chan->ramin);
if (ret)
return ret;
/* create page directory for this vm if none currently exists,
* will be destroyed automagically when last reference to the
* vm is removed
*/
if (list_empty(&vm->pgd_list)) {
ret = nouveau_gpuobj_new(dev, NULL, 65536, 0x1000, 0, &pgd);
if (ret)
return ret;
}
nouveau_vm_ref(vm, &chan->vm, pgd);
nouveau_gpuobj_ref(NULL, &pgd);
/* point channel at vm's page directory */
vpgd = list_first_entry(&vm->pgd_list, struct nouveau_vm_pgd, head);
nv_wo32(chan->ramin, 0x0200, lower_32_bits(vpgd->obj->vinst));
nv_wo32(chan->ramin, 0x0204, upper_32_bits(vpgd->obj->vinst));
nv_wo32(chan->ramin, 0x0208, 0xffffffff);
nv_wo32(chan->ramin, 0x020c, 0x000000ff);
/* map display semaphore buffers into channel's vm */
for (i = 0; i < dev->mode_config.num_crtc; i++) {
struct nouveau_bo *bo;
if (dev_priv->card_type >= NV_D0)
bo = nvd0_display_crtc_sema(dev, i);
else
bo = nv50_display(dev)->crtc[i].sem.bo;
ret = nouveau_bo_vma_add(bo, chan->vm, &chan->dispc_vma[i]);
if (ret)
return ret;
}
return 0;
}
int
nouveau_gpuobj_channel_init(struct nouveau_channel *chan,
uint32_t vram_h, uint32_t tt_h)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_fpriv *fpriv = nouveau_fpriv(chan->file_priv);
struct nouveau_vm *vm = fpriv ? fpriv->vm : dev_priv->chan_vm;
struct nouveau_gpuobj *vram = NULL, *tt = NULL;
int ret, i;
NV_DEBUG(dev, "ch%d vram=0x%08x tt=0x%08x\n", chan->id, vram_h, tt_h);
if (dev_priv->card_type >= NV_C0)
return nvc0_gpuobj_channel_init(chan, vm);
/* Allocate a chunk of memory for per-channel object storage */
ret = nouveau_gpuobj_channel_init_pramin(chan);
if (ret) {
NV_ERROR(dev, "init pramin\n");
return ret;
}
/* NV50 VM
* - Allocate per-channel page-directory
* - Link with shared channel VM
*/
if (vm) {
u32 pgd_offs = (dev_priv->chipset == 0x50) ? 0x1400 : 0x0200;
u64 vm_vinst = chan->ramin->vinst + pgd_offs;
u32 vm_pinst = chan->ramin->pinst;
if (vm_pinst != ~0)
vm_pinst += pgd_offs;
ret = nouveau_gpuobj_new_fake(dev, vm_pinst, vm_vinst, 0x4000,
0, &chan->vm_pd);
if (ret)
return ret;
nouveau_vm_ref(vm, &chan->vm, chan->vm_pd);
}
/* RAMHT */
if (dev_priv->card_type < NV_50) {
nouveau_ramht_ref(dev_priv->ramht, &chan->ramht, NULL);
} else {
struct nouveau_gpuobj *ramht = NULL;
ret = nouveau_gpuobj_new(dev, chan, 0x8000, 16,
NVOBJ_FLAG_ZERO_ALLOC, &ramht);
if (ret)
return ret;
ret = nouveau_ramht_new(dev, ramht, &chan->ramht);
nouveau_gpuobj_ref(NULL, &ramht);
if (ret)
return ret;
/* dma objects for display sync channel semaphore blocks */
for (i = 0; i < dev->mode_config.num_crtc; i++) {
struct nouveau_gpuobj *sem = NULL;
struct nv50_display_crtc *dispc =
&nv50_display(dev)->crtc[i];
u64 offset = dispc->sem.bo->bo.offset;
ret = nouveau_gpuobj_dma_new(chan, 0x3d, offset, 0xfff,
NV_MEM_ACCESS_RW,
NV_MEM_TARGET_VRAM, &sem);
if (ret)
return ret;
ret = nouveau_ramht_insert(chan, NvEvoSema0 + i, sem);
nouveau_gpuobj_ref(NULL, &sem);
if (ret)
return ret;
}
}
/* VRAM ctxdma */
if (dev_priv->card_type >= NV_50) {
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
0, (1ULL << 40), NV_MEM_ACCESS_RW,
NV_MEM_TARGET_VM, &vram);
if (ret) {
NV_ERROR(dev, "Error creating VRAM ctxdma: %d\n", ret);
return ret;
}
} else {
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
0, dev_priv->fb_available_size,
NV_MEM_ACCESS_RW,
NV_MEM_TARGET_VRAM, &vram);
if (ret) {
NV_ERROR(dev, "Error creating VRAM ctxdma: %d\n", ret);
return ret;
}
}
ret = nouveau_ramht_insert(chan, vram_h, vram);
nouveau_gpuobj_ref(NULL, &vram);
if (ret) {
NV_ERROR(dev, "Error adding VRAM ctxdma to RAMHT: %d\n", ret);
return ret;
}
/* TT memory ctxdma */
if (dev_priv->card_type >= NV_50) {
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
0, (1ULL << 40), NV_MEM_ACCESS_RW,
NV_MEM_TARGET_VM, &tt);
} else {
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
0, dev_priv->gart_info.aper_size,
NV_MEM_ACCESS_RW,
NV_MEM_TARGET_GART, &tt);
}
if (ret) {
NV_ERROR(dev, "Error creating TT ctxdma: %d\n", ret);
return ret;
}
ret = nouveau_ramht_insert(chan, tt_h, tt);
nouveau_gpuobj_ref(NULL, &tt);
if (ret) {
NV_ERROR(dev, "Error adding TT ctxdma to RAMHT: %d\n", ret);
return ret;
}
return 0;
}
void
nouveau_gpuobj_channel_takedown(struct nouveau_channel *chan)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
int i;
NV_DEBUG(dev, "ch%d\n", chan->id);
if (dev_priv->card_type >= NV_D0) {
for (i = 0; i < dev->mode_config.num_crtc; i++) {
struct nouveau_bo *bo = nvd0_display_crtc_sema(dev, i);
nouveau_bo_vma_del(bo, &chan->dispc_vma[i]);
}
} else
if (dev_priv->card_type >= NV_50) {
struct nv50_display *disp = nv50_display(dev);
for (i = 0; i < dev->mode_config.num_crtc; i++) {
struct nv50_display_crtc *dispc = &disp->crtc[i];
nouveau_bo_vma_del(dispc->sem.bo, &chan->dispc_vma[i]);
}
}
nouveau_vm_ref(NULL, &chan->vm, chan->vm_pd);
nouveau_gpuobj_ref(NULL, &chan->vm_pd);
if (drm_mm_initialized(&chan->ramin_heap))
drm_mm_takedown(&chan->ramin_heap);
nouveau_gpuobj_ref(NULL, &chan->ramin);
}
int
nouveau_gpuobj_suspend(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *gpuobj;
int i;
list_for_each_entry(gpuobj, &dev_priv->gpuobj_list, list) {
if (gpuobj->cinst != NVOBJ_CINST_GLOBAL)
continue;
gpuobj->suspend = vmalloc(gpuobj->size);
if (!gpuobj->suspend) {
nouveau_gpuobj_resume(dev);
return -ENOMEM;
}
for (i = 0; i < gpuobj->size; i += 4)
gpuobj->suspend[i/4] = nv_ro32(gpuobj, i);
}
return 0;
}
void
nouveau_gpuobj_resume(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *gpuobj;
int i;
list_for_each_entry(gpuobj, &dev_priv->gpuobj_list, list) {
if (!gpuobj->suspend)
continue;
for (i = 0; i < gpuobj->size; i += 4)
nv_wo32(gpuobj, i, gpuobj->suspend[i/4]);
vfree(gpuobj->suspend);
gpuobj->suspend = NULL;
}
dev_priv->engine.instmem.flush(dev);
}
int nouveau_ioctl_grobj_alloc(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_nouveau_grobj_alloc *init = data;
struct nouveau_channel *chan;
int ret;
if (init->handle == ~0)
return -EINVAL;
chan = nouveau_channel_get(file_priv, init->channel);
if (IS_ERR(chan))
return PTR_ERR(chan);
if (nouveau_ramht_find(chan, init->handle)) {
ret = -EEXIST;
goto out;
}
ret = nouveau_gpuobj_gr_new(chan, init->handle, init->class);
if (ret) {
NV_ERROR(dev, "Error creating object: %d (%d/0x%08x)\n",
ret, init->channel, init->handle);
}
out:
nouveau_channel_put(&chan);
return ret;
}
int nouveau_ioctl_gpuobj_free(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_nouveau_gpuobj_free *objfree = data;
struct nouveau_channel *chan;
int ret;
chan = nouveau_channel_get(file_priv, objfree->channel);
if (IS_ERR(chan))
return PTR_ERR(chan);
/* Synchronize with the user channel */
nouveau_channel_idle(chan);
ret = nouveau_ramht_remove(chan, objfree->handle);
nouveau_channel_put(&chan);
return ret;
}
u32
nv_ro32(struct nouveau_gpuobj *gpuobj, u32 offset)
{
struct drm_nouveau_private *dev_priv = gpuobj->dev->dev_private;
struct drm_device *dev = gpuobj->dev;
unsigned long flags;
if (gpuobj->pinst == ~0 || !dev_priv->ramin_available) {
u64 ptr = gpuobj->vinst + offset;
u32 base = ptr >> 16;
u32 val;
spin_lock_irqsave(&dev_priv->vm_lock, flags);
if (dev_priv->ramin_base != base) {
dev_priv->ramin_base = base;
nv_wr32(dev, 0x001700, dev_priv->ramin_base);
}
val = nv_rd32(dev, 0x700000 + (ptr & 0xffff));
spin_unlock_irqrestore(&dev_priv->vm_lock, flags);
return val;
}
return nv_ri32(dev, gpuobj->pinst + offset);
}
void
nv_wo32(struct nouveau_gpuobj *gpuobj, u32 offset, u32 val)
{
struct drm_nouveau_private *dev_priv = gpuobj->dev->dev_private;
struct drm_device *dev = gpuobj->dev;
unsigned long flags;
if (gpuobj->pinst == ~0 || !dev_priv->ramin_available) {
u64 ptr = gpuobj->vinst + offset;
u32 base = ptr >> 16;
spin_lock_irqsave(&dev_priv->vm_lock, flags);
if (dev_priv->ramin_base != base) {
dev_priv->ramin_base = base;
nv_wr32(dev, 0x001700, dev_priv->ramin_base);
}
nv_wr32(dev, 0x700000 + (ptr & 0xffff), val);
spin_unlock_irqrestore(&dev_priv->vm_lock, flags);
return;
}
nv_wi32(dev, gpuobj->pinst + offset, val);
}