620 lines
15 KiB
C
620 lines
15 KiB
C
![]() |
/**************************************************************************
|
||
|
*
|
||
|
* Copyright © 2011 VMware, Inc., Palo Alto, CA., USA
|
||
|
* 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
|
||
|
* THE COPYRIGHT HOLDERS, AUTHORS 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.
|
||
|
*
|
||
|
**************************************************************************/
|
||
|
|
||
|
#include "drmP.h"
|
||
|
#include "vmwgfx_drv.h"
|
||
|
|
||
|
#define VMW_FENCE_WRAP (1 << 31)
|
||
|
|
||
|
struct vmw_fence_manager {
|
||
|
int num_fence_objects;
|
||
|
struct vmw_private *dev_priv;
|
||
|
spinlock_t lock;
|
||
|
u32 next_seqno;
|
||
|
struct list_head fence_list;
|
||
|
struct work_struct work;
|
||
|
u32 user_fence_size;
|
||
|
u32 fence_size;
|
||
|
bool fifo_down;
|
||
|
struct list_head cleanup_list;
|
||
|
};
|
||
|
|
||
|
struct vmw_user_fence {
|
||
|
struct ttm_base_object base;
|
||
|
struct vmw_fence_obj fence;
|
||
|
};
|
||
|
|
||
|
/**
|
||
|
* vmw_fence_destroy_locked
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
static void vmw_fence_obj_destroy_locked(struct kref *kref)
|
||
|
{
|
||
|
struct vmw_fence_obj *fence =
|
||
|
container_of(kref, struct vmw_fence_obj, kref);
|
||
|
|
||
|
struct vmw_fence_manager *fman = fence->fman;
|
||
|
unsigned int num_fences;
|
||
|
|
||
|
list_del_init(&fence->head);
|
||
|
num_fences = --fman->num_fence_objects;
|
||
|
spin_unlock_irq(&fman->lock);
|
||
|
if (fence->destroy)
|
||
|
fence->destroy(fence);
|
||
|
else
|
||
|
kfree(fence);
|
||
|
|
||
|
spin_lock_irq(&fman->lock);
|
||
|
}
|
||
|
|
||
|
|
||
|
/**
|
||
|
* Execute signal actions on fences recently signaled.
|
||
|
* This is done from a workqueue so we don't have to execute
|
||
|
* signal actions from atomic context.
|
||
|
*/
|
||
|
|
||
|
static void vmw_fence_work_func(struct work_struct *work)
|
||
|
{
|
||
|
struct vmw_fence_manager *fman =
|
||
|
container_of(work, struct vmw_fence_manager, work);
|
||
|
struct list_head list;
|
||
|
struct vmw_fence_action *action, *next_action;
|
||
|
|
||
|
do {
|
||
|
INIT_LIST_HEAD(&list);
|
||
|
spin_lock_irq(&fman->lock);
|
||
|
list_splice_init(&fman->cleanup_list, &list);
|
||
|
spin_unlock_irq(&fman->lock);
|
||
|
|
||
|
if (list_empty(&list))
|
||
|
return;
|
||
|
|
||
|
/*
|
||
|
* At this point, only we should be able to manipulate the
|
||
|
* list heads of the actions we have on the private list.
|
||
|
*/
|
||
|
|
||
|
list_for_each_entry_safe(action, next_action, &list, head) {
|
||
|
list_del_init(&action->head);
|
||
|
action->cleanup(action);
|
||
|
}
|
||
|
} while (1);
|
||
|
}
|
||
|
|
||
|
struct vmw_fence_manager *vmw_fence_manager_init(struct vmw_private *dev_priv)
|
||
|
{
|
||
|
struct vmw_fence_manager *fman = kzalloc(sizeof(*fman), GFP_KERNEL);
|
||
|
|
||
|
if (unlikely(fman == NULL))
|
||
|
return NULL;
|
||
|
|
||
|
fman->dev_priv = dev_priv;
|
||
|
spin_lock_init(&fman->lock);
|
||
|
INIT_LIST_HEAD(&fman->fence_list);
|
||
|
INIT_LIST_HEAD(&fman->cleanup_list);
|
||
|
INIT_WORK(&fman->work, &vmw_fence_work_func);
|
||
|
fman->fifo_down = true;
|
||
|
fman->user_fence_size = ttm_round_pot(sizeof(struct vmw_user_fence));
|
||
|
fman->fence_size = ttm_round_pot(sizeof(struct vmw_fence_obj));
|
||
|
|
||
|
return fman;
|
||
|
}
|
||
|
|
||
|
void vmw_fence_manager_takedown(struct vmw_fence_manager *fman)
|
||
|
{
|
||
|
unsigned long irq_flags;
|
||
|
bool lists_empty;
|
||
|
|
||
|
(void) cancel_work_sync(&fman->work);
|
||
|
|
||
|
spin_lock_irqsave(&fman->lock, irq_flags);
|
||
|
lists_empty = list_empty(&fman->fence_list) &&
|
||
|
list_empty(&fman->cleanup_list);
|
||
|
spin_unlock_irqrestore(&fman->lock, irq_flags);
|
||
|
|
||
|
BUG_ON(!lists_empty);
|
||
|
kfree(fman);
|
||
|
}
|
||
|
|
||
|
static int vmw_fence_obj_init(struct vmw_fence_manager *fman,
|
||
|
struct vmw_fence_obj *fence,
|
||
|
u32 seqno,
|
||
|
uint32_t mask,
|
||
|
void (*destroy) (struct vmw_fence_obj *fence))
|
||
|
{
|
||
|
unsigned long irq_flags;
|
||
|
unsigned int num_fences;
|
||
|
int ret = 0;
|
||
|
|
||
|
fence->seqno = seqno;
|
||
|
INIT_LIST_HEAD(&fence->seq_passed_actions);
|
||
|
fence->fman = fman;
|
||
|
fence->signaled = 0;
|
||
|
fence->signal_mask = mask;
|
||
|
kref_init(&fence->kref);
|
||
|
fence->destroy = destroy;
|
||
|
init_waitqueue_head(&fence->queue);
|
||
|
|
||
|
spin_lock_irqsave(&fman->lock, irq_flags);
|
||
|
if (unlikely(fman->fifo_down)) {
|
||
|
ret = -EBUSY;
|
||
|
goto out_unlock;
|
||
|
}
|
||
|
list_add_tail(&fence->head, &fman->fence_list);
|
||
|
num_fences = ++fman->num_fence_objects;
|
||
|
|
||
|
out_unlock:
|
||
|
spin_unlock_irqrestore(&fman->lock, irq_flags);
|
||
|
return ret;
|
||
|
|
||
|
}
|
||
|
|
||
|
struct vmw_fence_obj *vmw_fence_obj_reference(struct vmw_fence_obj *fence)
|
||
|
{
|
||
|
kref_get(&fence->kref);
|
||
|
return fence;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* vmw_fence_obj_unreference
|
||
|
*
|
||
|
* Note that this function may not be entered with disabled irqs since
|
||
|
* it may re-enable them in the destroy function.
|
||
|
*
|
||
|
*/
|
||
|
void vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p)
|
||
|
{
|
||
|
struct vmw_fence_obj *fence = *fence_p;
|
||
|
struct vmw_fence_manager *fman = fence->fman;
|
||
|
|
||
|
*fence_p = NULL;
|
||
|
spin_lock_irq(&fman->lock);
|
||
|
BUG_ON(atomic_read(&fence->kref.refcount) == 0);
|
||
|
kref_put(&fence->kref, vmw_fence_obj_destroy_locked);
|
||
|
spin_unlock_irq(&fman->lock);
|
||
|
}
|
||
|
|
||
|
void vmw_fences_perform_actions(struct vmw_fence_manager *fman,
|
||
|
struct list_head *list)
|
||
|
{
|
||
|
struct vmw_fence_action *action, *next_action;
|
||
|
|
||
|
list_for_each_entry_safe(action, next_action, list, head) {
|
||
|
list_del_init(&action->head);
|
||
|
if (action->seq_passed != NULL)
|
||
|
action->seq_passed(action);
|
||
|
|
||
|
/*
|
||
|
* Add the cleanup action to the cleanup list so that
|
||
|
* it will be performed by a worker task.
|
||
|
*/
|
||
|
|
||
|
if (action->cleanup != NULL)
|
||
|
list_add_tail(&action->head, &fman->cleanup_list);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void vmw_fences_update(struct vmw_fence_manager *fman, u32 seqno)
|
||
|
{
|
||
|
unsigned long flags;
|
||
|
struct vmw_fence_obj *fence, *next_fence;
|
||
|
struct list_head action_list;
|
||
|
|
||
|
spin_lock_irqsave(&fman->lock, flags);
|
||
|
list_for_each_entry_safe(fence, next_fence, &fman->fence_list, head) {
|
||
|
if (seqno - fence->seqno < VMW_FENCE_WRAP) {
|
||
|
list_del_init(&fence->head);
|
||
|
fence->signaled |= DRM_VMW_FENCE_FLAG_EXEC;
|
||
|
INIT_LIST_HEAD(&action_list);
|
||
|
list_splice_init(&fence->seq_passed_actions,
|
||
|
&action_list);
|
||
|
vmw_fences_perform_actions(fman, &action_list);
|
||
|
wake_up_all(&fence->queue);
|
||
|
}
|
||
|
|
||
|
}
|
||
|
if (!list_empty(&fman->cleanup_list))
|
||
|
(void) schedule_work(&fman->work);
|
||
|
spin_unlock_irqrestore(&fman->lock, flags);
|
||
|
}
|
||
|
|
||
|
|
||
|
bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence,
|
||
|
uint32_t flags)
|
||
|
{
|
||
|
struct vmw_fence_manager *fman = fence->fman;
|
||
|
unsigned long irq_flags;
|
||
|
uint32_t signaled;
|
||
|
|
||
|
spin_lock_irqsave(&fman->lock, irq_flags);
|
||
|
signaled = fence->signaled;
|
||
|
spin_unlock_irqrestore(&fman->lock, irq_flags);
|
||
|
|
||
|
flags &= fence->signal_mask;
|
||
|
if ((signaled & flags) == flags)
|
||
|
return 1;
|
||
|
|
||
|
if ((signaled & DRM_VMW_FENCE_FLAG_EXEC) == 0) {
|
||
|
struct vmw_private *dev_priv = fman->dev_priv;
|
||
|
__le32 __iomem *fifo_mem = dev_priv->mmio_virt;
|
||
|
u32 seqno;
|
||
|
|
||
|
seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE);
|
||
|
vmw_fences_update(fman, seqno);
|
||
|
}
|
||
|
|
||
|
spin_lock_irqsave(&fman->lock, irq_flags);
|
||
|
signaled = fence->signaled;
|
||
|
spin_unlock_irqrestore(&fman->lock, irq_flags);
|
||
|
|
||
|
return ((signaled & flags) == flags);
|
||
|
}
|
||
|
|
||
|
int vmw_fence_obj_wait(struct vmw_fence_obj *fence,
|
||
|
uint32_t flags, bool lazy,
|
||
|
bool interruptible, unsigned long timeout)
|
||
|
{
|
||
|
struct vmw_private *dev_priv = fence->fman->dev_priv;
|
||
|
long ret;
|
||
|
|
||
|
if (likely(vmw_fence_obj_signaled(fence, flags)))
|
||
|
return 0;
|
||
|
|
||
|
vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
|
||
|
vmw_seqno_waiter_add(dev_priv);
|
||
|
|
||
|
if (interruptible)
|
||
|
ret = wait_event_interruptible_timeout
|
||
|
(fence->queue,
|
||
|
vmw_fence_obj_signaled(fence, flags),
|
||
|
timeout);
|
||
|
else
|
||
|
ret = wait_event_timeout
|
||
|
(fence->queue,
|
||
|
vmw_fence_obj_signaled(fence, flags),
|
||
|
timeout);
|
||
|
|
||
|
vmw_seqno_waiter_remove(dev_priv);
|
||
|
|
||
|
if (unlikely(ret == 0))
|
||
|
ret = -EBUSY;
|
||
|
else if (likely(ret > 0))
|
||
|
ret = 0;
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
void vmw_fence_obj_flush(struct vmw_fence_obj *fence)
|
||
|
{
|
||
|
struct vmw_private *dev_priv = fence->fman->dev_priv;
|
||
|
|
||
|
vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC);
|
||
|
}
|
||
|
|
||
|
static void vmw_fence_destroy(struct vmw_fence_obj *fence)
|
||
|
{
|
||
|
struct vmw_fence_manager *fman = fence->fman;
|
||
|
|
||
|
kfree(fence);
|
||
|
/*
|
||
|
* Free kernel space accounting.
|
||
|
*/
|
||
|
ttm_mem_global_free(vmw_mem_glob(fman->dev_priv),
|
||
|
fman->fence_size);
|
||
|
}
|
||
|
|
||
|
int vmw_fence_create(struct vmw_fence_manager *fman,
|
||
|
uint32_t seqno,
|
||
|
uint32_t mask,
|
||
|
struct vmw_fence_obj **p_fence)
|
||
|
{
|
||
|
struct ttm_mem_global *mem_glob = vmw_mem_glob(fman->dev_priv);
|
||
|
struct vmw_fence_obj *fence;
|
||
|
int ret;
|
||
|
|
||
|
ret = ttm_mem_global_alloc(mem_glob, fman->fence_size,
|
||
|
false, false);
|
||
|
if (unlikely(ret != 0))
|
||
|
return ret;
|
||
|
|
||
|
fence = kzalloc(sizeof(*fence), GFP_KERNEL);
|
||
|
if (unlikely(fence == NULL)) {
|
||
|
ret = -ENOMEM;
|
||
|
goto out_no_object;
|
||
|
}
|
||
|
|
||
|
ret = vmw_fence_obj_init(fman, fence, seqno, mask,
|
||
|
vmw_fence_destroy);
|
||
|
if (unlikely(ret != 0))
|
||
|
goto out_err_init;
|
||
|
|
||
|
*p_fence = fence;
|
||
|
return 0;
|
||
|
|
||
|
out_err_init:
|
||
|
kfree(fence);
|
||
|
out_no_object:
|
||
|
ttm_mem_global_free(mem_glob, fman->fence_size);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
|
||
|
static void vmw_user_fence_destroy(struct vmw_fence_obj *fence)
|
||
|
{
|
||
|
struct vmw_user_fence *ufence =
|
||
|
container_of(fence, struct vmw_user_fence, fence);
|
||
|
struct vmw_fence_manager *fman = fence->fman;
|
||
|
|
||
|
kfree(ufence);
|
||
|
/*
|
||
|
* Free kernel space accounting.
|
||
|
*/
|
||
|
ttm_mem_global_free(vmw_mem_glob(fman->dev_priv),
|
||
|
fman->user_fence_size);
|
||
|
}
|
||
|
|
||
|
static void vmw_user_fence_base_release(struct ttm_base_object **p_base)
|
||
|
{
|
||
|
struct ttm_base_object *base = *p_base;
|
||
|
struct vmw_user_fence *ufence =
|
||
|
container_of(base, struct vmw_user_fence, base);
|
||
|
struct vmw_fence_obj *fence = &ufence->fence;
|
||
|
|
||
|
*p_base = NULL;
|
||
|
vmw_fence_obj_unreference(&fence);
|
||
|
}
|
||
|
|
||
|
int vmw_user_fence_create(struct drm_file *file_priv,
|
||
|
struct vmw_fence_manager *fman,
|
||
|
uint32_t seqno,
|
||
|
uint32_t mask,
|
||
|
struct vmw_fence_obj **p_fence,
|
||
|
uint32_t *p_handle)
|
||
|
{
|
||
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
||
|
struct vmw_user_fence *ufence;
|
||
|
struct vmw_fence_obj *tmp;
|
||
|
struct ttm_mem_global *mem_glob = vmw_mem_glob(fman->dev_priv);
|
||
|
int ret;
|
||
|
|
||
|
/*
|
||
|
* Kernel memory space accounting, since this object may
|
||
|
* be created by a user-space request.
|
||
|
*/
|
||
|
|
||
|
ret = ttm_mem_global_alloc(mem_glob, fman->user_fence_size,
|
||
|
false, false);
|
||
|
if (unlikely(ret != 0))
|
||
|
return ret;
|
||
|
|
||
|
ufence = kzalloc(sizeof(*ufence), GFP_KERNEL);
|
||
|
if (unlikely(ufence == NULL)) {
|
||
|
ret = -ENOMEM;
|
||
|
goto out_no_object;
|
||
|
}
|
||
|
|
||
|
ret = vmw_fence_obj_init(fman, &ufence->fence, seqno,
|
||
|
mask, vmw_user_fence_destroy);
|
||
|
if (unlikely(ret != 0)) {
|
||
|
kfree(ufence);
|
||
|
goto out_no_object;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* The base object holds a reference which is freed in
|
||
|
* vmw_user_fence_base_release.
|
||
|
*/
|
||
|
tmp = vmw_fence_obj_reference(&ufence->fence);
|
||
|
ret = ttm_base_object_init(tfile, &ufence->base, false,
|
||
|
VMW_RES_FENCE,
|
||
|
&vmw_user_fence_base_release, NULL);
|
||
|
|
||
|
|
||
|
if (unlikely(ret != 0)) {
|
||
|
/*
|
||
|
* Free the base object's reference
|
||
|
*/
|
||
|
vmw_fence_obj_unreference(&tmp);
|
||
|
goto out_err;
|
||
|
}
|
||
|
|
||
|
*p_fence = &ufence->fence;
|
||
|
*p_handle = ufence->base.hash.key;
|
||
|
|
||
|
return 0;
|
||
|
out_err:
|
||
|
tmp = &ufence->fence;
|
||
|
vmw_fence_obj_unreference(&tmp);
|
||
|
out_no_object:
|
||
|
ttm_mem_global_free(mem_glob, fman->user_fence_size);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
|
||
|
/**
|
||
|
* vmw_fence_fifo_down - signal all unsignaled fence objects.
|
||
|
*/
|
||
|
|
||
|
void vmw_fence_fifo_down(struct vmw_fence_manager *fman)
|
||
|
{
|
||
|
unsigned long irq_flags;
|
||
|
struct list_head action_list;
|
||
|
int ret;
|
||
|
|
||
|
/*
|
||
|
* The list may be altered while we traverse it, so always
|
||
|
* restart when we've released the fman->lock.
|
||
|
*/
|
||
|
|
||
|
spin_lock_irqsave(&fman->lock, irq_flags);
|
||
|
fman->fifo_down = true;
|
||
|
while (!list_empty(&fman->fence_list)) {
|
||
|
struct vmw_fence_obj *fence =
|
||
|
list_entry(fman->fence_list.prev, struct vmw_fence_obj,
|
||
|
head);
|
||
|
kref_get(&fence->kref);
|
||
|
spin_unlock_irq(&fman->lock);
|
||
|
|
||
|
ret = vmw_fence_obj_wait(fence, fence->signal_mask,
|
||
|
false, false,
|
||
|
VMW_FENCE_WAIT_TIMEOUT);
|
||
|
|
||
|
if (unlikely(ret != 0)) {
|
||
|
list_del_init(&fence->head);
|
||
|
fence->signaled |= DRM_VMW_FENCE_FLAG_EXEC;
|
||
|
INIT_LIST_HEAD(&action_list);
|
||
|
list_splice_init(&fence->seq_passed_actions,
|
||
|
&action_list);
|
||
|
vmw_fences_perform_actions(fman, &action_list);
|
||
|
wake_up_all(&fence->queue);
|
||
|
}
|
||
|
|
||
|
spin_lock_irq(&fman->lock);
|
||
|
|
||
|
BUG_ON(!list_empty(&fence->head));
|
||
|
kref_put(&fence->kref, vmw_fence_obj_destroy_locked);
|
||
|
}
|
||
|
spin_unlock_irqrestore(&fman->lock, irq_flags);
|
||
|
}
|
||
|
|
||
|
void vmw_fence_fifo_up(struct vmw_fence_manager *fman)
|
||
|
{
|
||
|
unsigned long irq_flags;
|
||
|
|
||
|
spin_lock_irqsave(&fman->lock, irq_flags);
|
||
|
fman->fifo_down = false;
|
||
|
spin_unlock_irqrestore(&fman->lock, irq_flags);
|
||
|
}
|
||
|
|
||
|
|
||
|
int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
|
||
|
struct drm_file *file_priv)
|
||
|
{
|
||
|
struct drm_vmw_fence_wait_arg *arg =
|
||
|
(struct drm_vmw_fence_wait_arg *)data;
|
||
|
unsigned long timeout;
|
||
|
struct ttm_base_object *base;
|
||
|
struct vmw_fence_obj *fence;
|
||
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
||
|
int ret;
|
||
|
uint64_t wait_timeout = ((uint64_t)arg->timeout_us * HZ);
|
||
|
|
||
|
/*
|
||
|
* 64-bit division not present on 32-bit systems, so do an
|
||
|
* approximation. (Divide by 1000000).
|
||
|
*/
|
||
|
|
||
|
wait_timeout = (wait_timeout >> 20) + (wait_timeout >> 24) -
|
||
|
(wait_timeout >> 26);
|
||
|
|
||
|
if (!arg->cookie_valid) {
|
||
|
arg->cookie_valid = 1;
|
||
|
arg->kernel_cookie = jiffies + wait_timeout;
|
||
|
}
|
||
|
|
||
|
base = ttm_base_object_lookup(tfile, arg->handle);
|
||
|
if (unlikely(base == NULL)) {
|
||
|
printk(KERN_ERR "Wait invalid fence object handle "
|
||
|
"0x%08lx.\n",
|
||
|
(unsigned long)arg->handle);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
fence = &(container_of(base, struct vmw_user_fence, base)->fence);
|
||
|
|
||
|
timeout = jiffies;
|
||
|
if (time_after_eq(timeout, (unsigned long)arg->kernel_cookie)) {
|
||
|
ret = ((vmw_fence_obj_signaled(fence, arg->flags)) ?
|
||
|
0 : -EBUSY);
|
||
|
goto out;
|
||
|
}
|
||
|
|
||
|
timeout = (unsigned long)arg->kernel_cookie - timeout;
|
||
|
|
||
|
ret = vmw_fence_obj_wait(fence, arg->flags, arg->lazy, true, timeout);
|
||
|
|
||
|
out:
|
||
|
ttm_base_object_unref(&base);
|
||
|
|
||
|
/*
|
||
|
* Optionally unref the fence object.
|
||
|
*/
|
||
|
|
||
|
if (ret == 0 && (arg->wait_options & DRM_VMW_WAIT_OPTION_UNREF))
|
||
|
return ttm_ref_object_base_unref(tfile, arg->handle,
|
||
|
TTM_REF_USAGE);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
|
||
|
struct drm_file *file_priv)
|
||
|
{
|
||
|
struct drm_vmw_fence_signaled_arg *arg =
|
||
|
(struct drm_vmw_fence_signaled_arg *) data;
|
||
|
struct ttm_base_object *base;
|
||
|
struct vmw_fence_obj *fence;
|
||
|
struct vmw_fence_manager *fman;
|
||
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
||
|
struct vmw_private *dev_priv = vmw_priv(dev);
|
||
|
|
||
|
base = ttm_base_object_lookup(tfile, arg->handle);
|
||
|
if (unlikely(base == NULL)) {
|
||
|
printk(KERN_ERR "Fence signaled invalid fence object handle "
|
||
|
"0x%08lx.\n",
|
||
|
(unsigned long)arg->handle);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
fence = &(container_of(base, struct vmw_user_fence, base)->fence);
|
||
|
fman = fence->fman;
|
||
|
|
||
|
arg->signaled = vmw_fence_obj_signaled(fence, arg->flags);
|
||
|
spin_lock_irq(&fman->lock);
|
||
|
|
||
|
arg->signaled_flags = fence->signaled;
|
||
|
arg->passed_seqno = dev_priv->last_read_seqno;
|
||
|
spin_unlock_irq(&fman->lock);
|
||
|
|
||
|
ttm_base_object_unref(&base);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
|
||
|
int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
|
||
|
struct drm_file *file_priv)
|
||
|
{
|
||
|
struct drm_vmw_fence_arg *arg =
|
||
|
(struct drm_vmw_fence_arg *) data;
|
||
|
|
||
|
return ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile,
|
||
|
arg->handle,
|
||
|
TTM_REF_USAGE);
|
||
|
}
|