linux/drivers/gpu/drm/nouveau/nouveau_object.c
Ben Skeggs 43efc9ce25 drm/nouveau: simplify fake gpu objects
Reviewed-by: Francisco Jerez <currojerez@riseup.net>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-09-24 16:20:23 +10:00

952 lines
24 KiB
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"
/* 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_engine *engine = &dev_priv->engine;
struct nouveau_gpuobj *gpuobj;
struct drm_mm *pramin = NULL;
int ret;
NV_DEBUG(dev, "ch%d size=%u align=%d flags=0x%08x\n",
chan ? chan->id : -1, size, align, flags);
if (!dev_priv || !gpuobj_ret || *gpuobj_ret != NULL)
return -EINVAL;
gpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL);
if (!gpuobj)
return -ENOMEM;
NV_DEBUG(dev, "gpuobj %p\n", gpuobj);
gpuobj->dev = dev;
gpuobj->flags = flags;
gpuobj->refcount = 1;
gpuobj->size = size;
list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list);
/* Choose between global instmem heap, and per-channel private
* instmem heap. On <NV50 allow requests for private instmem
* to be satisfied from global heap if no per-channel area
* available.
*/
if (chan) {
NV_DEBUG(dev, "channel heap\n");
pramin = &chan->ramin_heap;
} else {
NV_DEBUG(dev, "global heap\n");
pramin = &dev_priv->ramin_heap;
ret = engine->instmem.populate(dev, gpuobj, &size);
if (ret) {
nouveau_gpuobj_ref(NULL, &gpuobj);
return ret;
}
}
/* Allocate a chunk of the PRAMIN aperture */
gpuobj->im_pramin = drm_mm_search_free(pramin, size, align, 0);
if (gpuobj->im_pramin)
gpuobj->im_pramin = drm_mm_get_block(gpuobj->im_pramin, size, align);
if (!gpuobj->im_pramin) {
nouveau_gpuobj_ref(NULL, &gpuobj);
return -ENOMEM;
}
if (!chan) {
ret = engine->instmem.bind(dev, gpuobj);
if (ret) {
nouveau_gpuobj_ref(NULL, &gpuobj);
return ret;
}
}
/* calculate the various different addresses for the object */
if (chan) {
gpuobj->pinst = gpuobj->im_pramin->start + chan->ramin->pinst;
if (dev_priv->card_type < NV_50) {
gpuobj->cinst = gpuobj->pinst;
} else {
gpuobj->cinst = gpuobj->im_pramin->start;
gpuobj->vinst = gpuobj->im_pramin->start +
chan->ramin->vinst;
}
} else {
gpuobj->pinst = gpuobj->im_pramin->start;
gpuobj->cinst = 0xdeadbeef;
}
if (gpuobj->flags & NVOBJ_FLAG_ZERO_ALLOC) {
int i;
for (i = 0; i < gpuobj->size; i += 4)
nv_wo32(gpuobj, i, 0);
engine->instmem.flush(dev);
}
*gpuobj_ret = gpuobj;
return 0;
}
int
nouveau_gpuobj_early_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);
return 0;
}
int
nouveau_gpuobj_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *ramht = NULL;
int ret;
NV_DEBUG(dev, "\n");
if (dev_priv->card_type >= NV_50)
return 0;
ret = nouveau_gpuobj_new_fake(dev, dev_priv->ramht_offset, ~0,
dev_priv->ramht_size,
NVOBJ_FLAG_ZERO_ALLOC, &ramht);
if (ret)
return ret;
ret = nouveau_ramht_new(dev, ramht, &dev_priv->ramht);
nouveau_gpuobj_ref(NULL, &ramht);
return ret;
}
void
nouveau_gpuobj_takedown(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
NV_DEBUG(dev, "\n");
nouveau_ramht_ref(NULL, &dev_priv->ramht, NULL);
}
void
nouveau_gpuobj_late_takedown(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *gpuobj = NULL;
struct list_head *entry, *tmp;
NV_DEBUG(dev, "\n");
list_for_each_safe(entry, tmp, &dev_priv->gpuobj_list) {
gpuobj = list_entry(entry, struct nouveau_gpuobj, list);
NV_ERROR(dev, "gpuobj %p still exists at takedown, refs=%d\n",
gpuobj, gpuobj->refcount);
gpuobj->refcount = 1;
nouveau_gpuobj_ref(NULL, &gpuobj);
}
}
static int
nouveau_gpuobj_del(struct nouveau_gpuobj *gpuobj)
{
struct drm_device *dev = gpuobj->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_engine *engine = &dev_priv->engine;
int i;
NV_DEBUG(dev, "gpuobj %p\n", gpuobj);
if (gpuobj->im_pramin && (gpuobj->flags & NVOBJ_FLAG_ZERO_FREE)) {
for (i = 0; i < gpuobj->size; i += 4)
nv_wo32(gpuobj, i, 0);
engine->instmem.flush(dev);
}
if (gpuobj->dtor)
gpuobj->dtor(dev, gpuobj);
if (gpuobj->im_backing)
engine->instmem.clear(dev, gpuobj);
if (gpuobj->im_pramin)
drm_mm_put_block(gpuobj->im_pramin);
list_del(&gpuobj->list);
kfree(gpuobj);
return 0;
}
void
nouveau_gpuobj_ref(struct nouveau_gpuobj *ref, struct nouveau_gpuobj **ptr)
{
if (ref)
ref->refcount++;
if (*ptr && --(*ptr)->refcount == 0)
nouveau_gpuobj_del(*ptr);
*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;
gpuobj->refcount = 1;
gpuobj->size = size;
gpuobj->pinst = pinst;
gpuobj->cinst = 0xdeadbeef;
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);
}
list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list);
*pgpuobj = gpuobj;
return 0;
}
static uint32_t
nouveau_gpuobj_class_instmem_size(struct drm_device *dev, int class)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
/*XXX: dodgy hack for now */
if (dev_priv->card_type >= NV_50)
return 24;
if (dev_priv->card_type >= NV_40)
return 32;
return 16;
}
/*
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.
*/
int
nouveau_gpuobj_dma_new(struct nouveau_channel *chan, int class,
uint64_t offset, uint64_t size, int access,
int target, struct nouveau_gpuobj **gpuobj)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_instmem_engine *instmem = &dev_priv->engine.instmem;
int ret;
NV_DEBUG(dev, "ch%d class=0x%04x offset=0x%llx size=0x%llx\n",
chan->id, class, offset, size);
NV_DEBUG(dev, "access=%d target=%d\n", access, target);
switch (target) {
case NV_DMA_TARGET_AGP:
offset += dev_priv->gart_info.aper_base;
break;
default:
break;
}
ret = nouveau_gpuobj_new(dev, chan,
nouveau_gpuobj_class_instmem_size(dev, class),
16, NVOBJ_FLAG_ZERO_ALLOC |
NVOBJ_FLAG_ZERO_FREE, gpuobj);
if (ret) {
NV_ERROR(dev, "Error creating gpuobj: %d\n", ret);
return ret;
}
if (dev_priv->card_type < NV_50) {
uint32_t frame, adjust, pte_flags = 0;
if (access != NV_DMA_ACCESS_RO)
pte_flags |= (1<<1);
adjust = offset & 0x00000fff;
frame = offset & ~0x00000fff;
nv_wo32(*gpuobj, 0, ((1<<12) | (1<<13) | (adjust << 20) |
(access << 14) | (target << 16) |
class));
nv_wo32(*gpuobj, 4, size - 1);
nv_wo32(*gpuobj, 8, frame | pte_flags);
nv_wo32(*gpuobj, 12, frame | pte_flags);
} else {
uint64_t limit = offset + size - 1;
uint32_t flags0, flags5;
if (target == NV_DMA_TARGET_VIDMEM) {
flags0 = 0x00190000;
flags5 = 0x00010000;
} else {
flags0 = 0x7fc00000;
flags5 = 0x00080000;
}
nv_wo32(*gpuobj, 0, flags0 | class);
nv_wo32(*gpuobj, 4, lower_32_bits(limit));
nv_wo32(*gpuobj, 8, lower_32_bits(offset));
nv_wo32(*gpuobj, 12, ((upper_32_bits(limit) & 0xff) << 24) |
(upper_32_bits(offset) & 0xff));
nv_wo32(*gpuobj, 20, flags5);
}
instmem->flush(dev);
(*gpuobj)->engine = NVOBJ_ENGINE_SW;
(*gpuobj)->class = class;
return 0;
}
int
nouveau_gpuobj_gart_dma_new(struct nouveau_channel *chan,
uint64_t offset, uint64_t size, int access,
struct nouveau_gpuobj **gpuobj,
uint32_t *o_ret)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
int ret;
if (dev_priv->gart_info.type == NOUVEAU_GART_AGP ||
(dev_priv->card_type >= NV_50 &&
dev_priv->gart_info.type == NOUVEAU_GART_SGDMA)) {
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
offset + dev_priv->vm_gart_base,
size, access, NV_DMA_TARGET_AGP,
gpuobj);
if (o_ret)
*o_ret = 0;
} else
if (dev_priv->gart_info.type == NOUVEAU_GART_SGDMA) {
nouveau_gpuobj_ref(dev_priv->gart_info.sg_ctxdma, gpuobj);
if (offset & ~0xffffffffULL) {
NV_ERROR(dev, "obj offset exceeds 32-bits\n");
return -EINVAL;
}
if (o_ret)
*o_ret = (uint32_t)offset;
ret = (*gpuobj != NULL) ? 0 : -EINVAL;
} else {
NV_ERROR(dev, "Invalid GART type %d\n", dev_priv->gart_info.type);
return -EINVAL;
}
return ret;
}
/* 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?
*/
int
nouveau_gpuobj_gr_new(struct nouveau_channel *chan, int class,
struct nouveau_gpuobj **gpuobj)
{
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
int ret;
NV_DEBUG(dev, "ch%d class=0x%04x\n", chan->id, class);
ret = nouveau_gpuobj_new(dev, chan,
nouveau_gpuobj_class_instmem_size(dev, class),
16,
NVOBJ_FLAG_ZERO_ALLOC | NVOBJ_FLAG_ZERO_FREE,
gpuobj);
if (ret) {
NV_ERROR(dev, "Error creating gpuobj: %d\n", ret);
return ret;
}
if (dev_priv->card_type >= NV_50) {
nv_wo32(*gpuobj, 0, class);
nv_wo32(*gpuobj, 20, 0x00010000);
} else {
switch (class) {
case NV_CLASS_NULL:
nv_wo32(*gpuobj, 0, 0x00001030);
nv_wo32(*gpuobj, 4, 0xFFFFFFFF);
break;
default:
if (dev_priv->card_type >= NV_40) {
nv_wo32(*gpuobj, 0, class);
#ifdef __BIG_ENDIAN
nv_wo32(*gpuobj, 8, 0x01000000);
#endif
} else {
#ifdef __BIG_ENDIAN
nv_wo32(*gpuobj, 0, class | 0x00080000);
#else
nv_wo32(*gpuobj, 0, class);
#endif
}
}
}
dev_priv->engine.instmem.flush(dev);
(*gpuobj)->engine = NVOBJ_ENGINE_GR;
(*gpuobj)->class = class;
return 0;
}
int
nouveau_gpuobj_sw_new(struct nouveau_channel *chan, int class,
struct nouveau_gpuobj **gpuobj_ret)
{
struct drm_nouveau_private *dev_priv;
struct nouveau_gpuobj *gpuobj;
if (!chan || !gpuobj_ret || *gpuobj_ret != NULL)
return -EINVAL;
dev_priv = chan->dev->dev_private;
gpuobj = kzalloc(sizeof(*gpuobj), GFP_KERNEL);
if (!gpuobj)
return -ENOMEM;
gpuobj->dev = chan->dev;
gpuobj->engine = NVOBJ_ENGINE_SW;
gpuobj->class = class;
gpuobj->refcount = 1;
gpuobj->cinst = 0x40;
list_add_tail(&gpuobj->list, &dev_priv->gpuobj_list);
*gpuobj_ret = gpuobj;
return 0;
}
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 = 0x1000;
base = 0;
/* PGRAPH context */
size += dev_priv->engine.graph.grctx_size;
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);
if (ret) {
NV_ERROR(dev, "Error creating PRAMIN heap: %d\n", ret);
nouveau_gpuobj_ref(NULL, &chan->ramin);
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_instmem_engine *instmem = &dev_priv->engine.instmem;
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);
/* 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
* - Map GART and VRAM into the channel's address space at the
* locations determined during init.
*/
if (dev_priv->card_type >= NV_50) {
uint32_t vm_offset, pde;
vm_offset = (dev_priv->chipset & 0xf0) == 0x50 ? 0x1400 : 0x200;
vm_offset += chan->ramin->im_pramin->start;
ret = nouveau_gpuobj_new_fake(dev, vm_offset, ~0, 0x4000,
0, &chan->vm_pd);
if (ret)
return ret;
for (i = 0; i < 0x4000; i += 8) {
nv_wo32(chan->vm_pd, i + 0, 0x00000000);
nv_wo32(chan->vm_pd, i + 4, 0xdeadcafe);
}
nouveau_gpuobj_ref(dev_priv->gart_info.sg_ctxdma,
&chan->vm_gart_pt);
pde = (dev_priv->vm_gart_base / (512*1024*1024)) * 8;
nv_wo32(chan->vm_pd, pde + 0, chan->vm_gart_pt->vinst | 3);
nv_wo32(chan->vm_pd, pde + 4, 0x00000000);
pde = (dev_priv->vm_vram_base / (512*1024*1024)) * 8;
for (i = 0; i < dev_priv->vm_vram_pt_nr; i++) {
nouveau_gpuobj_ref(dev_priv->vm_vram_pt[i],
&chan->vm_vram_pt[i]);
nv_wo32(chan->vm_pd, pde + 0,
chan->vm_vram_pt[i]->vinst | 0x61);
nv_wo32(chan->vm_pd, pde + 4, 0x00000000);
pde += 8;
}
instmem->flush(dev);
}
/* 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;
}
/* VRAM ctxdma */
if (dev_priv->card_type >= NV_50) {
ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY,
0, dev_priv->vm_end,
NV_DMA_ACCESS_RW,
NV_DMA_TARGET_AGP, &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_DMA_ACCESS_RW,
NV_DMA_TARGET_VIDMEM, &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, dev_priv->vm_end,
NV_DMA_ACCESS_RW,
NV_DMA_TARGET_AGP, &tt);
if (ret) {
NV_ERROR(dev, "Error creating VRAM ctxdma: %d\n", ret);
return ret;
}
} else
if (dev_priv->gart_info.type != NOUVEAU_GART_NONE) {
ret = nouveau_gpuobj_gart_dma_new(chan, 0,
dev_priv->gart_info.aper_size,
NV_DMA_ACCESS_RW, &tt, NULL);
} else {
NV_ERROR(dev, "Invalid GART type %d\n", dev_priv->gart_info.type);
ret = -EINVAL;
}
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_nouveau_private *dev_priv = chan->dev->dev_private;
struct drm_device *dev = chan->dev;
int i;
NV_DEBUG(dev, "ch%d\n", chan->id);
if (!chan->ramht)
return;
nouveau_ramht_ref(NULL, &chan->ramht, chan);
nouveau_gpuobj_ref(NULL, &chan->vm_pd);
nouveau_gpuobj_ref(NULL, &chan->vm_gart_pt);
for (i = 0; i < dev_priv->vm_vram_pt_nr; i++)
nouveau_gpuobj_ref(NULL, &chan->vm_vram_pt[i]);
if (chan->ramin_heap.free_stack.next)
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;
if (dev_priv->card_type < NV_50) {
dev_priv->susres.ramin_copy = vmalloc(dev_priv->ramin_rsvd_vram);
if (!dev_priv->susres.ramin_copy)
return -ENOMEM;
for (i = 0; i < dev_priv->ramin_rsvd_vram; i += 4)
dev_priv->susres.ramin_copy[i/4] = nv_ri32(dev, i);
return 0;
}
list_for_each_entry(gpuobj, &dev_priv->gpuobj_list, list) {
if (!gpuobj->im_backing)
continue;
gpuobj->im_backing_suspend = vmalloc(gpuobj->size);
if (!gpuobj->im_backing_suspend) {
nouveau_gpuobj_resume(dev);
return -ENOMEM;
}
for (i = 0; i < gpuobj->size; i += 4)
gpuobj->im_backing_suspend[i/4] = nv_ro32(gpuobj, i);
}
return 0;
}
void
nouveau_gpuobj_suspend_cleanup(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *gpuobj;
if (dev_priv->card_type < NV_50) {
vfree(dev_priv->susres.ramin_copy);
dev_priv->susres.ramin_copy = NULL;
return;
}
list_for_each_entry(gpuobj, &dev_priv->gpuobj_list, list) {
if (!gpuobj->im_backing_suspend)
continue;
vfree(gpuobj->im_backing_suspend);
gpuobj->im_backing_suspend = NULL;
}
}
void
nouveau_gpuobj_resume(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_gpuobj *gpuobj;
int i;
if (dev_priv->card_type < NV_50) {
for (i = 0; i < dev_priv->ramin_rsvd_vram; i += 4)
nv_wi32(dev, i, dev_priv->susres.ramin_copy[i/4]);
nouveau_gpuobj_suspend_cleanup(dev);
return;
}
list_for_each_entry(gpuobj, &dev_priv->gpuobj_list, list) {
if (!gpuobj->im_backing_suspend)
continue;
for (i = 0; i < gpuobj->size; i += 4)
nv_wo32(gpuobj, i, gpuobj->im_backing_suspend[i/4]);
dev_priv->engine.instmem.flush(dev);
}
nouveau_gpuobj_suspend_cleanup(dev);
}
int nouveau_ioctl_grobj_alloc(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct drm_nouveau_grobj_alloc *init = data;
struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
struct nouveau_pgraph_object_class *grc;
struct nouveau_gpuobj *gr = NULL;
struct nouveau_channel *chan;
int ret;
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(init->channel, file_priv, chan);
if (init->handle == ~0)
return -EINVAL;
grc = pgraph->grclass;
while (grc->id) {
if (grc->id == init->class)
break;
grc++;
}
if (!grc->id) {
NV_ERROR(dev, "Illegal object class: 0x%x\n", init->class);
return -EPERM;
}
if (nouveau_ramht_find(chan, init->handle))
return -EEXIST;
if (!grc->software)
ret = nouveau_gpuobj_gr_new(chan, grc->id, &gr);
else
ret = nouveau_gpuobj_sw_new(chan, grc->id, &gr);
if (ret) {
NV_ERROR(dev, "Error creating object: %d (%d/0x%08x)\n",
ret, init->channel, init->handle);
return ret;
}
ret = nouveau_ramht_insert(chan, init->handle, gr);
nouveau_gpuobj_ref(NULL, &gr);
if (ret) {
NV_ERROR(dev, "Error referencing object: %d (%d/0x%08x)\n",
ret, init->channel, init->handle);
return ret;
}
return 0;
}
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_gpuobj *gpuobj;
struct nouveau_channel *chan;
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(objfree->channel, file_priv, chan);
gpuobj = nouveau_ramht_find(chan, objfree->handle);
if (!gpuobj)
return -ENOENT;
nouveau_ramht_remove(chan, objfree->handle);
return 0;
}
u32
nv_ro32(struct nouveau_gpuobj *gpuobj, u32 offset)
{
return nv_ri32(gpuobj->dev, gpuobj->pinst + offset);
}
void
nv_wo32(struct nouveau_gpuobj *gpuobj, u32 offset, u32 val)
{
nv_wi32(gpuobj->dev, gpuobj->pinst + offset, val);
}