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drm/nouveau: add more fine-grained locking to channel list + structures

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-10-06 16:16:59 +10:00
parent 6a6b73f254
commit cff5c13324
19 changed files with 237 additions and 162 deletions
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190
drivers/gpu/drm/nouveau/nouveau_channel.c
View File

@ -107,54 +107,54 @@ nouveau_channel_user_pushbuf_alloc(struct drm_device *dev)
int
nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
struct drm_file *file_priv,
uint32_t vram_handle, uint32_t tt_handle)
uint32_t vram_handle, uint32_t gart_handle)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
struct nouveau_channel *chan;
int channel, user;
int ret;
unsigned long flags;
int user, ret;
/*
* Alright, here is the full story
* Nvidia cards have multiple hw fifo contexts (praise them for that,
* no complicated crash-prone context switches)
* We allocate a new context for each app and let it write to it
* directly (woo, full userspace command submission !)
* When there are no more contexts, you lost
*/
for (channel = 0; channel < pfifo->channels; channel++) {
if (dev_priv->fifos[channel] == NULL)
break;
}
/* no more fifos. you lost. */
if (channel == pfifo->channels)
return -EINVAL;
dev_priv->fifos[channel] = kzalloc(sizeof(struct nouveau_channel),
GFP_KERNEL);
if (!dev_priv->fifos[channel])
/* allocate and lock channel structure */
chan = kzalloc(sizeof(*chan), GFP_KERNEL);
if (!chan)
return -ENOMEM;
chan = dev_priv->fifos[channel];
INIT_LIST_HEAD(&chan->nvsw.vbl_wait);
INIT_LIST_HEAD(&chan->fence.pending);
chan->dev = dev;
chan->id = channel;
chan->file_priv = file_priv;
chan->vram_handle = vram_handle;
chan->gart_handle = tt_handle;
mutex_init(&chan->mutex);
chan->gart_handle = gart_handle;
NV_INFO(dev, "Allocating FIFO number %d\n", channel);
atomic_set(&chan->refcount, 1);
mutex_init(&chan->mutex);
mutex_lock(&chan->mutex);
/* allocate hw channel id */
spin_lock_irqsave(&dev_priv->channels.lock, flags);
for (chan->id = 0; chan->id < pfifo->channels; chan->id++) {
if (!dev_priv->channels.ptr[chan->id]) {
dev_priv->channels.ptr[chan->id] = chan;
break;
}
}
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
if (chan->id == pfifo->channels) {
mutex_unlock(&chan->mutex);
kfree(chan);
return -ENODEV;
}
NV_DEBUG(dev, "initialising channel %d\n", chan->id);
INIT_LIST_HEAD(&chan->nvsw.vbl_wait);
INIT_LIST_HEAD(&chan->fence.pending);
/* Allocate DMA push buffer */
chan->pushbuf_bo = nouveau_channel_user_pushbuf_alloc(dev);
if (!chan->pushbuf_bo) {
ret = -ENOMEM;
NV_ERROR(dev, "pushbuf %d\n", ret);
nouveau_channel_free(chan);
nouveau_channel_put(&chan);
return ret;
}
@ -162,18 +162,18 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
/* Locate channel's user control regs */
if (dev_priv->card_type < NV_40)
user = NV03_USER(channel);
user = NV03_USER(chan->id);
else
if (dev_priv->card_type < NV_50)
user = NV40_USER(channel);
user = NV40_USER(chan->id);
else
user = NV50_USER(channel);
user = NV50_USER(chan->id);
chan->user = ioremap(pci_resource_start(dev->pdev, 0) + user,
PAGE_SIZE);
if (!chan->user) {
NV_ERROR(dev, "ioremap of regs failed.\n");
nouveau_channel_free(chan);
nouveau_channel_put(&chan);
return -ENOMEM;
}
chan->user_put = 0x40;
@ -183,15 +183,15 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
ret = nouveau_notifier_init_channel(chan);
if (ret) {
NV_ERROR(dev, "ntfy %d\n", ret);
nouveau_channel_free(chan);
nouveau_channel_put(&chan);
return ret;
}
/* Setup channel's default objects */
ret = nouveau_gpuobj_channel_init(chan, vram_handle, tt_handle);
ret = nouveau_gpuobj_channel_init(chan, vram_handle, gart_handle);
if (ret) {
NV_ERROR(dev, "gpuobj %d\n", ret);
nouveau_channel_free(chan);
nouveau_channel_put(&chan);
return ret;
}
@ -199,7 +199,7 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
ret = nouveau_channel_pushbuf_ctxdma_init(chan);
if (ret) {
NV_ERROR(dev, "pbctxdma %d\n", ret);
nouveau_channel_free(chan);
nouveau_channel_put(&chan);
return ret;
}
@ -209,14 +209,14 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
/* Create a graphics context for new channel */
ret = pgraph->create_context(chan);
if (ret) {
nouveau_channel_free(chan);
nouveau_channel_put(&chan);
return ret;
}
/* Construct inital RAMFC for new channel */
ret = pfifo->create_context(chan);
if (ret) {
nouveau_channel_free(chan);
nouveau_channel_put(&chan);
return ret;
}
@ -226,33 +226,70 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
if (!ret)
ret = nouveau_fence_channel_init(chan);
if (ret) {
nouveau_channel_free(chan);
nouveau_channel_put(&chan);
return ret;
}
nouveau_debugfs_channel_init(chan);
NV_INFO(dev, "%s: initialised FIFO %d\n", __func__, channel);
NV_DEBUG(dev, "channel %d initialised\n", chan->id);
*chan_ret = chan;
return 0;
}
/* stops a fifo */
void
nouveau_channel_free(struct nouveau_channel *chan)
struct nouveau_channel *
nouveau_channel_get(struct drm_device *dev, struct drm_file *file_priv, int id)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan = ERR_PTR(-ENODEV);
unsigned long flags;
spin_lock_irqsave(&dev_priv->channels.lock, flags);
chan = dev_priv->channels.ptr[id];
if (unlikely(!chan || atomic_read(&chan->refcount) == 0)) {
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
return ERR_PTR(-EINVAL);
}
if (unlikely(file_priv && chan->file_priv != file_priv)) {
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
return ERR_PTR(-EINVAL);
}
atomic_inc(&chan->refcount);
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
mutex_lock(&chan->mutex);
return chan;
}
void
nouveau_channel_put(struct nouveau_channel **pchan)
{
struct nouveau_channel *chan = *pchan;
struct drm_device *dev = chan->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
unsigned long flags;
int ret;
NV_INFO(dev, "%s: freeing fifo %d\n", __func__, chan->id);
/* unlock the channel */
mutex_unlock(&chan->mutex);
/* decrement the refcount, and we're done if there's still refs */
if (likely(!atomic_dec_and_test(&chan->refcount))) {
*pchan = NULL;
return;
}
/* noone wants the channel anymore */
NV_DEBUG(dev, "freeing channel %d\n", chan->id);
nouveau_debugfs_channel_fini(chan);
*pchan = NULL;
/* Give outstanding push buffers a chance to complete */
/* give it chance to idle */
nouveau_fence_update(chan);
if (chan->fence.sequence != chan->fence.sequence_ack) {
struct nouveau_fence *fence = NULL;
@ -267,13 +304,13 @@ nouveau_channel_free(struct nouveau_channel *chan)
NV_ERROR(dev, "Failed to idle channel %d.\n", chan->id);
}
/* Ensure all outstanding fences are signaled. They should be if the
/* ensure all outstanding fences are signaled. they should be if the
* above attempts at idling were OK, but if we failed this'll tell TTM
* we're done with the buffers.
*/
nouveau_fence_channel_fini(chan);
/* This will prevent pfifo from switching channels. */
/* boot it off the hardware */
pfifo->reassign(dev, false);
/* We want to give pgraph a chance to idle and get rid of all potential
@ -302,7 +339,14 @@ nouveau_channel_free(struct nouveau_channel *chan)
spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
/* Release the channel's resources */
/* aside from its resources, the channel should now be dead,
* remove it from the channel list
*/
spin_lock_irqsave(&dev_priv->channels.lock, flags);
dev_priv->channels.ptr[chan->id] = NULL;
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
/* destroy any resources the channel owned */
nouveau_gpuobj_ref(NULL, &chan->pushbuf);
if (chan->pushbuf_bo) {
nouveau_bo_unmap(chan->pushbuf_bo);
@ -314,7 +358,6 @@ nouveau_channel_free(struct nouveau_channel *chan)
if (chan->user)
iounmap(chan->user);
dev_priv->fifos[chan->id] = NULL;
kfree(chan);
}
@ -324,31 +367,20 @@ nouveau_channel_cleanup(struct drm_device *dev, struct drm_file *file_priv)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_engine *engine = &dev_priv->engine;
struct nouveau_channel *chan;
int i;
NV_DEBUG(dev, "clearing FIFO enables from file_priv\n");
for (i = 0; i < engine->fifo.channels; i++) {
struct nouveau_channel *chan = dev_priv->fifos[i];
chan = nouveau_channel_get(dev, file_priv, i);
if (IS_ERR(chan))
continue;
if (chan && chan->file_priv == file_priv)
nouveau_channel_free(chan);
atomic_dec(&chan->refcount);
nouveau_channel_put(&chan);
}
}
int
nouveau_channel_owner(struct drm_device *dev, struct drm_file *file_priv,
int channel)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_engine *engine = &dev_priv->engine;
if (channel >= engine->fifo.channels)
return 0;
if (dev_priv->fifos[channel] == NULL)
return 0;
return (dev_priv->fifos[channel]->file_priv == file_priv);
}
/***********************************
* ioctls wrapping the functions
@ -396,24 +428,26 @@ nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data,
/* Named memory object area */
ret = drm_gem_handle_create(file_priv, chan->notifier_bo->gem,
&init->notifier_handle);
if (ret) {
nouveau_channel_free(chan);
return ret;
}
return 0;
if (ret == 0)
atomic_inc(&chan->refcount); /* userspace reference */
nouveau_channel_put(&chan);
return ret;
}
static int
nouveau_ioctl_fifo_free(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_nouveau_channel_free *cfree = data;
struct drm_nouveau_channel_free *req = data;
struct nouveau_channel *chan;
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(cfree->channel, file_priv, chan);
chan = nouveau_channel_get(dev, file_priv, req->channel);
if (IS_ERR(chan))
return PTR_ERR(chan);
nouveau_channel_free(chan);
atomic_dec(&chan->refcount);
nouveau_channel_put(&chan);
return 0;
}

7
drivers/gpu/drm/nouveau/nouveau_drv.c
View File

@ -195,9 +195,8 @@ nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state)
for (i = 0; i < pfifo->channels; i++) {
struct nouveau_fence *fence = NULL;
chan = dev_priv->fifos[i];
if (!chan || (dev_priv->card_type >= NV_50 &&
chan == dev_priv->fifos[0]))
chan = dev_priv->channels.ptr[i];
if (!chan || !chan->pushbuf_bo)
continue;
ret = nouveau_fence_new(chan, &fence, true);
@ -313,7 +312,7 @@ nouveau_pci_resume(struct pci_dev *pdev)
int j;
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
chan = dev_priv->fifos[i];
chan = dev_priv->channels.ptr[i];
if (!chan || !chan->pushbuf_bo)
continue;

23
drivers/gpu/drm/nouveau/nouveau_drv.h
View File

@ -166,6 +166,7 @@ struct nouveau_channel {
struct drm_device *dev;
int id;
atomic_t refcount;
struct mutex mutex;
/* owner of this fifo */
@ -607,8 +608,10 @@ struct drm_nouveau_private {
struct nouveau_bo *bo;
} fence;
int fifo_alloc_count;
struct nouveau_channel *fifos[NOUVEAU_MAX_CHANNEL_NR];
struct {
spinlock_t lock;
struct nouveau_channel *ptr[NOUVEAU_MAX_CHANNEL_NR];
} channels;
struct nouveau_engine engine;
struct nouveau_channel *channel;
@ -721,16 +724,6 @@ nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
return 0;
}
#define NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(id, cl, ch) do { \
struct drm_nouveau_private *nv = dev->dev_private; \
if (!nouveau_channel_owner(dev, (cl), (id))) { \
NV_ERROR(dev, "pid %d doesn't own channel %d\n", \
DRM_CURRENTPID, (id)); \
return -EPERM; \
} \
(ch) = nv->fifos[(id)]; \
} while (0)
/* nouveau_drv.c */
extern int nouveau_agpmode;
extern int nouveau_duallink;
@ -805,13 +798,13 @@ extern int nouveau_ioctl_notifier_free(struct drm_device *, void *data,
extern struct drm_ioctl_desc nouveau_ioctls[];
extern int nouveau_max_ioctl;
extern void nouveau_channel_cleanup(struct drm_device *, struct drm_file *);
extern int nouveau_channel_owner(struct drm_device *, struct drm_file *,
int channel);
extern int nouveau_channel_alloc(struct drm_device *dev,
struct nouveau_channel **chan,
struct drm_file *file_priv,
uint32_t fb_ctxdma, uint32_t tt_ctxdma);
extern void nouveau_channel_free(struct nouveau_channel *);
extern struct nouveau_channel *
nouveau_channel_get(struct drm_device *, struct drm_file *, int id);
extern void nouveau_channel_put(struct nouveau_channel **);
/* nouveau_object.c */
extern int nouveau_gpuobj_early_init(struct drm_device *);

10
drivers/gpu/drm/nouveau/nouveau_fence.c
View File

@ -393,8 +393,18 @@ nouveau_fence_sync(struct nouveau_fence *fence,
return nouveau_fence_wait(fence, NULL, false, false);
}
/* try to take wchan's mutex, if we can't take it right away
* we have to fallback to software sync to prevent locking
* order issues
*/
if (!mutex_trylock(&wchan->mutex)) {
free_semaphore(&sema->ref);
return nouveau_fence_wait(fence, NULL, false, false);
}
/* Make wchan wait until it gets signalled */
ret = emit_semaphore(wchan, NV_SW_SEMAPHORE_ACQUIRE, sema);
mutex_unlock(&wchan->mutex);
if (ret)
goto out;

28
drivers/gpu/drm/nouveau/nouveau_gem.c
View File

@ -146,11 +146,6 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
if (req->channel_hint) {
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel_hint,
file_priv, chan);
}
if (req->info.domain & NOUVEAU_GEM_DOMAIN_VRAM)
flags |= TTM_PL_FLAG_VRAM;
if (req->info.domain & NOUVEAU_GEM_DOMAIN_GART)
@ -161,10 +156,18 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
if (!nouveau_gem_tile_flags_valid(dev, req->info.tile_flags))
return -EINVAL;
if (req->channel_hint) {
chan = nouveau_channel_get(dev, file_priv, req->channel_hint);
if (IS_ERR(chan))
return PTR_ERR(chan);
}
ret = nouveau_gem_new(dev, chan, req->info.size, req->align, flags,
req->info.tile_mode, req->info.tile_flags, false,
(req->info.domain & NOUVEAU_GEM_DOMAIN_MAPPABLE),
&nvbo);
if (chan)
nouveau_channel_put(&chan);
if (ret)
return ret;
@ -341,9 +344,7 @@ retry:
return -EINVAL;
}
mutex_unlock(&drm_global_mutex);
ret = ttm_bo_wait_cpu(&nvbo->bo, false);
mutex_lock(&drm_global_mutex);
if (ret) {
NV_ERROR(dev, "fail wait_cpu\n");
return ret;
@ -585,7 +586,9 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
struct nouveau_fence *fence = NULL;
int i, j, ret = 0, do_reloc = 0;
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
chan = nouveau_channel_get(dev, file_priv, req->channel);
if (IS_ERR(chan))
return PTR_ERR(chan);
req->vram_available = dev_priv->fb_aper_free;
req->gart_available = dev_priv->gart_info.aper_free;
@ -595,28 +598,34 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
if (unlikely(req->nr_push > NOUVEAU_GEM_MAX_PUSH)) {
NV_ERROR(dev, "pushbuf push count exceeds limit: %d max %d\n",
req->nr_push, NOUVEAU_GEM_MAX_PUSH);
nouveau_channel_put(&chan);
return -EINVAL;
}
if (unlikely(req->nr_buffers > NOUVEAU_GEM_MAX_BUFFERS)) {
NV_ERROR(dev, "pushbuf bo count exceeds limit: %d max %d\n",
req->nr_buffers, NOUVEAU_GEM_MAX_BUFFERS);
nouveau_channel_put(&chan);
return -EINVAL;
}
if (unlikely(req->nr_relocs > NOUVEAU_GEM_MAX_RELOCS)) {
NV_ERROR(dev, "pushbuf reloc count exceeds limit: %d max %d\n",
req->nr_relocs, NOUVEAU_GEM_MAX_RELOCS);
nouveau_channel_put(&chan);
return -EINVAL;
}
push = u_memcpya(req->push, req->nr_push, sizeof(*push));
if (IS_ERR(push))
if (IS_ERR(push)) {
nouveau_channel_put(&chan);
return PTR_ERR(push);
}
bo = u_memcpya(req->buffers, req->nr_buffers, sizeof(*bo));
if (IS_ERR(bo)) {
kfree(push);
nouveau_channel_put(&chan);
return PTR_ERR(bo);
}
@ -750,6 +759,7 @@ out_next:
req->suffix1 = 0x00000000;
}
nouveau_channel_put(&chan);
return ret;
}

40
drivers/gpu/drm/nouveau/nouveau_irq.c
View File

@ -113,15 +113,17 @@ nouveau_fifo_swmthd(struct drm_device *dev, u32 chid, u32 addr, u32 data)
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan = NULL;
struct nouveau_gpuobj *obj;
unsigned long flags;
const int subc = (addr >> 13) & 0x7;
const int mthd = addr & 0x1ffc;
bool handled = false;
u32 engine;
spin_lock_irqsave(&dev_priv->channels.lock, flags);
if (likely(chid >= 0 && chid < dev_priv->engine.fifo.channels))
chan = dev_priv->fifos[chid];
chan = dev_priv->channels.ptr[chid];
if (unlikely(!chan))
return false;
goto out;
switch (mthd) {
case 0x0000: /* bind object to subchannel */
@ -146,6 +148,8 @@ nouveau_fifo_swmthd(struct drm_device *dev, u32 chid, u32 addr, u32 data)
break;
}
out:
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
return handled;
}
@ -398,6 +402,8 @@ static int
nouveau_graph_chid_from_grctx(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan;
unsigned long flags;
uint32_t inst;
int i;
@ -407,27 +413,29 @@ nouveau_graph_chid_from_grctx(struct drm_device *dev)
if (dev_priv->card_type < NV_50) {
inst = (nv_rd32(dev, 0x40032c) & 0xfffff) << 4;
spin_lock_irqsave(&dev_priv->channels.lock, flags);
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
struct nouveau_channel *chan = dev_priv->fifos[i];
chan = dev_priv->channels.ptr[i];
if (!chan || !chan->ramin_grctx)
continue;
if (inst == chan->ramin_grctx->pinst)
break;
}
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
} else {
inst = (nv_rd32(dev, 0x40032c) & 0xfffff) << 12;
spin_lock_irqsave(&dev_priv->channels.lock, flags);
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
struct nouveau_channel *chan = dev_priv->fifos[i];
chan = dev_priv->channels.ptr[i];
if (!chan || !chan->ramin)
continue;
if (inst == chan->ramin->vinst)
break;
}
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
}
@ -449,7 +457,8 @@ nouveau_graph_trapped_channel(struct drm_device *dev, int *channel_ret)
else
channel = nouveau_graph_chid_from_grctx(dev);
if (channel >= engine->fifo.channels || !dev_priv->fifos[channel]) {
if (channel >= engine->fifo.channels ||
!dev_priv->channels.ptr[channel]) {
NV_ERROR(dev, "AIII, invalid/inactive channel id %d\n", channel);
return -EINVAL;
}
@ -532,15 +541,20 @@ nouveau_pgraph_intr_swmthd(struct drm_device *dev,
struct nouveau_pgraph_trap *trap)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
unsigned long flags;
int ret = -EINVAL;
if (trap->channel < 0 ||
trap->channel >= dev_priv->engine.fifo.channels ||
!dev_priv->fifos[trap->channel])
return -ENODEV;
return nouveau_call_method(dev_priv->fifos[trap->channel],
spin_lock_irqsave(&dev_priv->channels.lock, flags);
if (trap->channel > 0 &&
trap->channel < dev_priv->engine.fifo.channels &&
dev_priv->channels.ptr[trap->channel]) {
ret = nouveau_call_method(dev_priv->channels.ptr[trap->channel],
trap->class, trap->mthd, trap->data);
}
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
return ret;
}
static inline void
nouveau_pgraph_intr_notify(struct drm_device *dev, uint32_t nsource)

8
drivers/gpu/drm/nouveau/nouveau_notifier.c
View File

@ -185,11 +185,11 @@ nouveau_ioctl_notifier_alloc(struct drm_device *dev, void *data,
struct nouveau_channel *chan;
int ret;
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(na->channel, file_priv, chan);
chan = nouveau_channel_get(dev, file_priv, na->channel);
if (IS_ERR(chan))
return PTR_ERR(chan);
ret = nouveau_notifier_alloc(chan, na->handle, na->size, &na->offset);
if (ret)
nouveau_channel_put(&chan);
return ret;
return 0;
}

34
drivers/gpu/drm/nouveau/nouveau_object.c
View File

@ -876,8 +876,6 @@ int nouveau_ioctl_grobj_alloc(struct drm_device *dev, void *data,
struct nouveau_channel *chan;
int ret;
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(init->channel, file_priv, chan);
if (init->handle == ~0)
return -EINVAL;
@ -893,8 +891,14 @@ int nouveau_ioctl_grobj_alloc(struct drm_device *dev, void *data,
return -EPERM;
}
if (nouveau_ramht_find(chan, init->handle))
return -EEXIST;
chan = nouveau_channel_get(dev, file_priv, init->channel);
if (IS_ERR(chan))
return PTR_ERR(chan);
if (nouveau_ramht_find(chan, init->handle)) {
ret = -EEXIST;
goto out;
}
if (!grc->software)
ret = nouveau_gpuobj_gr_new(chan, grc->id, &gr);
@ -903,7 +907,7 @@ int nouveau_ioctl_grobj_alloc(struct drm_device *dev, void *data,
if (ret) {
NV_ERROR(dev, "Error creating object: %d (%d/0x%08x)\n",
ret, init->channel, init->handle);
return ret;
goto out;
}
ret = nouveau_ramht_insert(chan, init->handle, gr);
@ -911,10 +915,11 @@ int nouveau_ioctl_grobj_alloc(struct drm_device *dev, void *data,
if (ret) {
NV_ERROR(dev, "Error referencing object: %d (%d/0x%08x)\n",
ret, init->channel, init->handle);
return ret;
}
return 0;
out:
nouveau_channel_put(&chan);
return ret;
}
int nouveau_ioctl_gpuobj_free(struct drm_device *dev, void *data,
@ -923,15 +928,20 @@ int nouveau_ioctl_gpuobj_free(struct drm_device *dev, void *data,
struct drm_nouveau_gpuobj_free *objfree = data;
struct nouveau_gpuobj *gpuobj;
struct nouveau_channel *chan;
int ret = -ENOENT;
NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(objfree->channel, file_priv, chan);
chan = nouveau_channel_get(dev, file_priv, objfree->channel);
if (IS_ERR(chan))
return PTR_ERR(chan);
gpuobj = nouveau_ramht_find(chan, objfree->handle);
if (!gpuobj)
return -ENOENT;
if (gpuobj) {
nouveau_ramht_remove(chan, objfree->handle);
return 0;
ret = 0;
}
nouveau_channel_put(&chan);
return ret;
}
u32

8
drivers/gpu/drm/nouveau/nouveau_state.c
View File

@ -516,11 +516,11 @@ nouveau_card_init_channel(struct drm_device *dev)
if (ret)
goto out_err;
mutex_unlock(&dev_priv->channel->mutex);
return 0;
out_err:
nouveau_channel_free(dev_priv->channel);
dev_priv->channel = NULL;
nouveau_channel_put(&dev_priv->channel);
return ret;
}
@ -567,6 +567,7 @@ nouveau_card_init(struct drm_device *dev)
if (ret)
goto out;
engine = &dev_priv->engine;
spin_lock_init(&dev_priv->channels.lock);
spin_lock_init(&dev_priv->context_switch_lock);
/* Make the CRTCs and I2C buses accessible */
@ -713,8 +714,7 @@ static void nouveau_card_takedown(struct drm_device *dev)
if (!engine->graph.accel_blocked) {
nouveau_fence_fini(dev);
nouveau_channel_free(dev_priv->channel);
dev_priv->channel = NULL;
nouveau_channel_put(&dev_priv->channel);
}
if (!nouveau_noaccel) {

4
drivers/gpu/drm/nouveau/nv04_fifo.c
View File

@ -208,7 +208,7 @@ nv04_fifo_unload_context(struct drm_device *dev)
if (chid < 0 || chid >= dev_priv->engine.fifo.channels)
return 0;
chan = dev_priv->fifos[chid];
chan = dev_priv->channels.ptr[chid];
if (!chan) {
NV_ERROR(dev, "Inactive channel on PFIFO: %d\n", chid);
return -EINVAL;
@ -289,7 +289,7 @@ nv04_fifo_init(struct drm_device *dev)
pfifo->reassign(dev, true);
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
if (dev_priv->fifos[i]) {
if (dev_priv->channels.ptr[i]) {
uint32_t mode = nv_rd32(dev, NV04_PFIFO_MODE);
nv_wr32(dev, NV04_PFIFO_MODE, mode | (1 << i));
}

4
drivers/gpu/drm/nouveau/nv04_graph.c
View File

@ -357,7 +357,7 @@ nv04_graph_channel(struct drm_device *dev)
if (chid >= dev_priv->engine.fifo.channels)
return NULL;
return dev_priv->fifos[chid];
return dev_priv->channels.ptr[chid];
}
void
@ -376,7 +376,7 @@ nv04_graph_context_switch(struct drm_device *dev)
/* Load context for next channel */
chid = dev_priv->engine.fifo.channel_id(dev);
chan = dev_priv->fifos[chid];
chan = dev_priv->channels.ptr[chid];
if (chan)
nv04_graph_load_context(chan);

2
drivers/gpu/drm/nouveau/nv10_fifo.c
View File

@ -241,7 +241,7 @@ nv10_fifo_init(struct drm_device *dev)
pfifo->reassign(dev, true);
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
if (dev_priv->fifos[i]) {
if (dev_priv->channels.ptr[i]) {
uint32_t mode = nv_rd32(dev, NV04_PFIFO_MODE);
nv_wr32(dev, NV04_PFIFO_MODE, mode | (1 << i));
}

4
drivers/gpu/drm/nouveau/nv10_graph.c
View File

@ -802,7 +802,7 @@ nv10_graph_context_switch(struct drm_device *dev)
/* Load context for next channel */
chid = (nv_rd32(dev, NV04_PGRAPH_TRAPPED_ADDR) >> 20) & 0x1f;
chan = dev_priv->fifos[chid];
chan = dev_priv->channels.ptr[chid];
if (chan && chan->pgraph_ctx)
nv10_graph_load_context(chan);
@ -833,7 +833,7 @@ nv10_graph_channel(struct drm_device *dev)
if (chid >= dev_priv->engine.fifo.channels)
return NULL;
return dev_priv->fifos[chid];
return dev_priv->channels.ptr[chid];
}
int nv10_graph_create_context(struct nouveau_channel *chan)

2
drivers/gpu/drm/nouveau/nv40_fifo.c
View File

@ -301,7 +301,7 @@ nv40_fifo_init(struct drm_device *dev)
pfifo->reassign(dev, true);
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
if (dev_priv->fifos[i]) {
if (dev_priv->channels.ptr[i]) {
uint32_t mode = nv_rd32(dev, NV04_PFIFO_MODE);
nv_wr32(dev, NV04_PFIFO_MODE, mode | (1 << i));
}

2
drivers/gpu/drm/nouveau/nv40_graph.c
View File

@ -42,7 +42,7 @@ nv40_graph_channel(struct drm_device *dev)
inst = (inst & NV40_PGRAPH_CTXCTL_CUR_INSTANCE) << 4;
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
struct nouveau_channel *chan = dev_priv->fifos[i];
struct nouveau_channel *chan = dev_priv->channels.ptr[i];
if (chan && chan->ramin_grctx &&
chan->ramin_grctx->pinst == inst)

6
drivers/gpu/drm/nouveau/nv50_fb.c
View File

@ -42,6 +42,7 @@ void
nv50_fb_vm_trap(struct drm_device *dev, int display, const char *name)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
unsigned long flags;
u32 trap[6], idx, chinst;
int i, ch;
@ -60,8 +61,10 @@ nv50_fb_vm_trap(struct drm_device *dev, int display, const char *name)
return;
chinst = (trap[2] << 16) | trap[1];
spin_lock_irqsave(&dev_priv->channels.lock, flags);
for (ch = 0; ch < dev_priv->engine.fifo.channels; ch++) {
struct nouveau_channel *chan = dev_priv->fifos[ch];
struct nouveau_channel *chan = dev_priv->channels.ptr[ch];
if (!chan || !chan->ramin)
continue;
@ -69,6 +72,7 @@ nv50_fb_vm_trap(struct drm_device *dev, int display, const char *name)
if (chinst == chan->ramin->vinst >> 12)
break;
}
spin_unlock_irqrestore(&dev_priv->channels.lock, flags);
NV_INFO(dev, "%s - VM: Trapped %s at %02x%04x%04x status %08x "
"channel %d (0x%08x)\n",

9
drivers/gpu/drm/nouveau/nv50_fifo.c
View File

@ -44,7 +44,8 @@ nv50_fifo_playlist_update(struct drm_device *dev)
/* We never schedule channel 0 or 127 */
for (i = 1, nr = 0; i < 127; i++) {
if (dev_priv->fifos[i] && dev_priv->fifos[i]->ramfc) {
if (dev_priv->channels.ptr[i] &&
dev_priv->channels.ptr[i]->ramfc) {
nv_wo32(cur, (nr * 4), i);
nr++;
}
@ -60,7 +61,7 @@ static void
nv50_fifo_channel_enable(struct drm_device *dev, int channel)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan = dev_priv->fifos[channel];
struct nouveau_channel *chan = dev_priv->channels.ptr[channel];
uint32_t inst;
NV_DEBUG(dev, "ch%d\n", channel);
@ -118,7 +119,7 @@ nv50_fifo_init_context_table(struct drm_device *dev)
NV_DEBUG(dev, "\n");
for (i = 0; i < NV50_PFIFO_CTX_TABLE__SIZE; i++) {
if (dev_priv->fifos[i])
if (dev_priv->channels.ptr[i])
nv50_fifo_channel_enable(dev, i);
else
nv50_fifo_channel_disable(dev, i);
@ -392,7 +393,7 @@ nv50_fifo_unload_context(struct drm_device *dev)
if (chid < 1 || chid >= dev_priv->engine.fifo.channels - 1)
return 0;
chan = dev_priv->fifos[chid];
chan = dev_priv->channels.ptr[chid];
if (!chan) {
NV_ERROR(dev, "Inactive channel on PFIFO: %d\n", chid);
return -EINVAL;

2
drivers/gpu/drm/nouveau/nv50_graph.c
View File

@ -190,7 +190,7 @@ nv50_graph_channel(struct drm_device *dev)
inst = (inst & NV50_PGRAPH_CTXCTL_CUR_INSTANCE) << 12;
for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
struct nouveau_channel *chan = dev_priv->fifos[i];
struct nouveau_channel *chan = dev_priv->channels.ptr[i];
if (chan && chan->ramin && chan->ramin->vinst == inst)
return chan;

14
drivers/gpu/drm/nouveau/nv50_instmem.c
View File

@ -131,10 +131,10 @@ nv50_instmem_init(struct drm_device *dev)
}
/* we need a channel to plug into the hw to control the BARs */
ret = nv50_channel_new(dev, 128*1024, &dev_priv->fifos[0]);
ret = nv50_channel_new(dev, 128*1024, &dev_priv->channels.ptr[0]);
if (ret)
return ret;
chan = dev_priv->fifos[127] = dev_priv->fifos[0];
chan = dev_priv->channels.ptr[127] = dev_priv->channels.ptr[0];
/* allocate page table for PRAMIN BAR */
ret = nouveau_gpuobj_new(dev, chan, (dev_priv->ramin_size >> 12) * 8,
@ -240,7 +240,7 @@ nv50_instmem_takedown(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
struct nouveau_channel *chan = dev_priv->fifos[0];
struct nouveau_channel *chan = dev_priv->channels.ptr[0];
int i;
NV_DEBUG(dev, "\n");
@ -264,8 +264,8 @@ nv50_instmem_takedown(struct drm_device *dev)
nouveau_gpuobj_ref(NULL, &chan->vm_vram_pt[i]);
dev_priv->vm_vram_pt_nr = 0;
nv50_channel_del(&dev_priv->fifos[0]);
dev_priv->fifos[127] = NULL;
nv50_channel_del(&dev_priv->channels.ptr[0]);
dev_priv->channels.ptr[127] = NULL;
}
dev_priv->engine.instmem.priv = NULL;
@ -276,7 +276,7 @@ int
nv50_instmem_suspend(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_channel *chan = dev_priv->fifos[0];
struct nouveau_channel *chan = dev_priv->channels.ptr[0];
struct nouveau_gpuobj *ramin = chan->ramin;
int i;
@ -294,7 +294,7 @@ nv50_instmem_resume(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
struct nouveau_channel *chan = dev_priv->fifos[0];
struct nouveau_channel *chan = dev_priv->channels.ptr[0];
struct nouveau_gpuobj *ramin = chan->ramin;
int i;