static int _add_fence_event(struct kgsl_device *device,
struct kgsl_context *context, unsigned int timestamp)
{
struct kgsl_fence_event_priv *event;
int ret;
event = kmalloc(sizeof(*event), GFP_KERNEL);
if (event == NULL)
return -ENOMEM;
/*
* Increase the refcount for the context to keep it through the
* callback
*/
_kgsl_context_get(context);
event->context = context;
event->timestamp = timestamp;
event->context = context;
ret = kgsl_add_event(device, context->id, timestamp,
kgsl_fence_event_cb, event, context->dev_priv);
if (ret) {
kgsl_context_put(context);
kfree(event);
}
return ret;
}
static int adreno_drawctxt_wait_global(struct adreno_device *adreno_dev,
struct kgsl_context *context,
uint32_t timestamp, unsigned int timeout)
{
struct kgsl_device *device = &adreno_dev->dev;
struct adreno_context *drawctxt = ADRENO_CONTEXT(context);
int ret = 0;
/* Needs to hold the device mutex */
BUG_ON(!mutex_is_locked(&device->mutex));
if (!_kgsl_context_get(context)) {
ret = -EINVAL;
goto done;
}
/*
* If the context is invalid then return immediately - we may end up
* waiting for a timestamp that will never come
*/
if (drawctxt->state == ADRENO_CONTEXT_STATE_INVALID) {
kgsl_context_put(context);
goto done;
}
trace_adreno_drawctxt_wait_start(KGSL_MEMSTORE_GLOBAL, timestamp);
ret = kgsl_add_event(device, &device->global_events, timestamp,
global_wait_callback, (void *) drawctxt);
if (ret) {
kgsl_context_put(context);
goto done;
}
kgsl_mutex_unlock(&device->mutex, &device->mutex_owner);
if (timeout) {
ret = (int) wait_event_timeout(drawctxt->waiting,
_check_global_timestamp(device, drawctxt, timestamp),
msecs_to_jiffies(timeout));
if (ret == 0)
ret = -ETIMEDOUT;
else if (ret > 0)
ret = 0;
} else {
wait_event(drawctxt->waiting,
_check_global_timestamp(device, drawctxt, timestamp));
}
kgsl_mutex_lock(&device->mutex, &device->mutex_owner);
if (ret)
kgsl_cancel_events_timestamp(device, &device->global_events,
timestamp);
done:
trace_adreno_drawctxt_wait_done(KGSL_MEMSTORE_GLOBAL, timestamp, ret);
return ret;
}
int adreno_drawctxt_wait_global(struct adreno_device *adreno_dev,
struct kgsl_context *context,
uint32_t timestamp, unsigned int timeout)
{
struct kgsl_device *device = &adreno_dev->dev;
struct adreno_context *drawctxt = ADRENO_CONTEXT(context);
int ret = 0;
BUG_ON(!mutex_is_locked(&device->mutex));
if (!_kgsl_context_get(context)) {
ret = -EINVAL;
goto done;
}
if (drawctxt->state == ADRENO_CONTEXT_STATE_INVALID) {
kgsl_context_put(context);
goto done;
}
trace_adreno_drawctxt_wait_start(KGSL_MEMSTORE_GLOBAL, timestamp);
ret = kgsl_add_event(device, KGSL_MEMSTORE_GLOBAL, timestamp,
global_wait_callback, drawctxt, NULL);
if (ret) {
kgsl_context_put(context);
goto done;
}
mutex_unlock(&device->mutex);
if (timeout) {
ret = (int) wait_event_timeout(drawctxt->waiting,
_check_global_timestamp(device, drawctxt, timestamp),
msecs_to_jiffies(timeout));
if (ret == 0)
ret = -ETIMEDOUT;
else if (ret > 0)
ret = 0;
} else {
wait_event(drawctxt->waiting,
_check_global_timestamp(device, drawctxt, timestamp));
}
mutex_lock(&device->mutex);
if (ret)
kgsl_cancel_events_timestamp(device, NULL, timestamp);
done:
trace_adreno_drawctxt_wait_done(KGSL_MEMSTORE_GLOBAL, timestamp, ret);
return ret;
}
int adreno_drawctxt_switch(struct adreno_device *adreno_dev,
struct adreno_context *drawctxt,
unsigned int flags)
{
struct kgsl_device *device = &adreno_dev->dev;
int ret = 0;
/* already current? */
if (adreno_dev->drawctxt_active == drawctxt)
return ret;
trace_adreno_drawctxt_switch(adreno_dev->drawctxt_active,
drawctxt, flags);
/* Get a refcount to the new instance */
if (drawctxt) {
if (!_kgsl_context_get(&drawctxt->base))
return -EINVAL;
ret = kgsl_mmu_setstate(&device->mmu,
drawctxt->base.proc_priv->pagetable,
adreno_dev->drawctxt_active ?
adreno_dev->drawctxt_active->base.id :
KGSL_CONTEXT_INVALID);
/* Set the new context */
ret = adreno_context_restore(adreno_dev, drawctxt);
if (ret) {
KGSL_DRV_ERR(device,
"Error in GPU context %d restore: %d\n",
drawctxt->base.id, ret);
return ret;
}
} else {
/*
* No context - set the default pagetable and thats it.
* If there isn't a current context, the kgsl_mmu_setstate
* will use the CPU path so we don't need to give
* it a valid context id.
*/
ret = kgsl_mmu_setstate(&device->mmu,
device->mmu.defaultpagetable,
adreno_dev->drawctxt_active->base.id);
}
/* Put the old instance of the active drawctxt */
if (adreno_dev->drawctxt_active)
kgsl_context_put(&adreno_dev->drawctxt_active->base);
adreno_dev->drawctxt_active = drawctxt;
return 0;
}
void adreno_drawctxt_switch(struct adreno_device *adreno_dev,
struct adreno_context *drawctxt,
unsigned int flags)
{
struct kgsl_device *device = &adreno_dev->dev;
if (drawctxt) {
if (flags & KGSL_CONTEXT_SAVE_GMEM)
/* Set the flag in context so that the save is done
* when this context is switched out. */
drawctxt->flags |= CTXT_FLAGS_GMEM_SAVE;
else
/* Remove GMEM saving flag from the context */
drawctxt->flags &= ~CTXT_FLAGS_GMEM_SAVE;
}
/* already current? */
if (adreno_dev->drawctxt_active == drawctxt) {
if (adreno_dev->gpudev->ctxt_draw_workaround &&
adreno_is_a225(adreno_dev))
adreno_dev->gpudev->ctxt_draw_workaround(
adreno_dev, drawctxt);
return;
}
KGSL_CTXT_INFO(device, "from %d to %d flags %d\n",
adreno_dev->drawctxt_active ?
adreno_dev->drawctxt_active->base.id : 0,
drawctxt ? drawctxt->base.id : 0, flags);
/* Save the old context */
adreno_dev->gpudev->ctxt_save(adreno_dev, adreno_dev->drawctxt_active);
/* Put the old instance of the active drawctxt */
if (adreno_dev->drawctxt_active) {
kgsl_context_put(&adreno_dev->drawctxt_active->base);
adreno_dev->drawctxt_active = NULL;
}
/* Get a refcount to the new instance */
if (drawctxt)
_kgsl_context_get(&drawctxt->base);
/* Set the new context */
adreno_dev->gpudev->ctxt_restore(adreno_dev, drawctxt);
adreno_dev->drawctxt_active = drawctxt;
}
int adreno_drawctxt_switch(struct adreno_device *adreno_dev,
struct adreno_ringbuffer *rb,
struct adreno_context *drawctxt,
unsigned int flags)
{
struct kgsl_device *device = &adreno_dev->dev;
struct kgsl_pagetable *new_pt;
int ret = 0;
/* We always expect a valid rb */
BUG_ON(!rb);
/* already current? */
if (rb->drawctxt_active == drawctxt)
return ret;
trace_adreno_drawctxt_switch(rb,
drawctxt, flags);
/* Get a refcount to the new instance */
if (drawctxt) {
if (!_kgsl_context_get(&drawctxt->base))
return -EINVAL;
new_pt = drawctxt->base.proc_priv->pagetable;
} else {
/* No context - set the default pagetable and thats it. */
new_pt = device->mmu.defaultpagetable;
}
ret = adreno_iommu_set_pt(rb, new_pt);
if (ret) {
KGSL_DRV_ERR(device,
"Failed to set pagetable on rb %d\n", rb->id);
return ret;
}
/* Put the old instance of the active drawctxt */
if (rb->drawctxt_active)
kgsl_context_put(&rb->drawctxt_active->base);
rb->drawctxt_active = drawctxt;
/* Set the new context */
adreno_context_restore(rb);
return 0;
}
int adreno_drawctxt_switch(struct adreno_device *adreno_dev,
struct adreno_context *drawctxt,
unsigned int flags)
{
struct kgsl_device *device = &adreno_dev->dev;
int ret = 0;
if (drawctxt) {
if (flags & KGSL_CONTEXT_SAVE_GMEM)
set_bit(ADRENO_CONTEXT_GMEM_SAVE, &drawctxt->priv);
else
clear_bit(ADRENO_CONTEXT_GMEM_SAVE, &drawctxt->priv);
}
if (adreno_dev->drawctxt_active == drawctxt) {
if (drawctxt && drawctxt->ops->draw_workaround)
ret = drawctxt->ops->draw_workaround(adreno_dev,
drawctxt);
return ret;
}
trace_adreno_drawctxt_switch(adreno_dev->drawctxt_active,
drawctxt, flags);
if (adreno_dev->drawctxt_active) {
ret = context_save(adreno_dev, adreno_dev->drawctxt_active);
if (ret) {
KGSL_DRV_ERR(device,
"Error in GPU context %d save: %d\n",
adreno_dev->drawctxt_active->base.id, ret);
return ret;
}
}
if (drawctxt) {
if (!_kgsl_context_get(&drawctxt->base))
return -EINVAL;
ret = kgsl_mmu_setstate(&device->mmu,
drawctxt->base.proc_priv->pagetable,
adreno_dev->drawctxt_active ?
adreno_dev->drawctxt_active->base.id :
KGSL_CONTEXT_INVALID);
ret = drawctxt->ops->restore(adreno_dev, drawctxt);
if (ret) {
KGSL_DRV_ERR(device,
"Error in GPU context %d restore: %d\n",
drawctxt->base.id, ret);
return ret;
}
} else {
ret = kgsl_mmu_setstate(&device->mmu,
device->mmu.defaultpagetable,
adreno_dev->drawctxt_active->base.id);
}
if (adreno_dev->drawctxt_active)
kgsl_context_put(&adreno_dev->drawctxt_active->base);
adreno_dev->drawctxt_active = drawctxt;
return 0;
}
int adreno_drawctxt_switch(struct adreno_device *adreno_dev,
struct adreno_context *drawctxt,
unsigned int flags)
{
struct kgsl_device *device = &adreno_dev->dev;
int ret = 0;
if (drawctxt) {
/*
* Handle legacy gmem / save restore flag on each IB.
* Userspace sets to guard IB sequences that require
* gmem to be saved and clears it at the end of the
* sequence.
*/
if (flags & KGSL_CONTEXT_SAVE_GMEM)
/* Set the flag in context so that the save is done
* when this context is switched out. */
set_bit(ADRENO_CONTEXT_GMEM_SAVE, &drawctxt->priv);
else
/* Remove GMEM saving flag from the context */
clear_bit(ADRENO_CONTEXT_GMEM_SAVE, &drawctxt->priv);
}
/* already current? */
if (adreno_dev->drawctxt_active == drawctxt) {
if (drawctxt && drawctxt->ops->draw_workaround)
ret = drawctxt->ops->draw_workaround(adreno_dev,
drawctxt);
return ret;
}
trace_adreno_drawctxt_switch(adreno_dev->drawctxt_active,
drawctxt, flags);
/* Get a refcount to the new instance */
if (drawctxt) {
if (!_kgsl_context_get(&drawctxt->base))
return -EINVAL;
ret = kgsl_mmu_setstate(&device->mmu,
drawctxt->base.proc_priv->pagetable,
adreno_dev->drawctxt_active ?
adreno_dev->drawctxt_active->base.id :
KGSL_CONTEXT_INVALID);
/* Set the new context */
ret = drawctxt->ops->restore(adreno_dev, drawctxt);
if (ret) {
KGSL_DRV_ERR(device,
"Error in GPU context %d restore: %d\n",
drawctxt->base.id, ret);
return ret;
}
} else {
/*
* No context - set the default pagetable and thats it.
* If there isn't a current context, the kgsl_mmu_setstate
* will use the CPU path so we don't need to give
* it a valid context id.
*/
ret = kgsl_mmu_setstate(&device->mmu,
device->mmu.defaultpagetable,
adreno_dev->drawctxt_active->base.id);
}
/* Put the old instance of the active drawctxt */
if (adreno_dev->drawctxt_active)
kgsl_context_put(&adreno_dev->drawctxt_active->base);
adreno_dev->drawctxt_active = drawctxt;
return 0;
}
