Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Dave Airlie |
315 |
90.78% |
3 |
33.33% |
| Eric Anholt |
23 |
6.63% |
1 |
11.11% |
| Daniel Vetter |
4 |
1.15% |
2 |
22.22% |
| Márton Németh |
2 |
0.58% |
1 |
11.11% |
| David Howells |
2 |
0.58% |
1 |
11.11% |
| Dan Carpenter |
1 |
0.29% |
1 |
11.11% |
| Total |
347 |
|
9 |
|
/*
* Copyright 2005 Thomas Hellstrom. 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 AUTHOR(S), AND/OR THE COPYRIGHT HOLDER(S) 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.
*
* Author: Thomas Hellstrom 2005.
*
* Video and XvMC related functions.
*/
#include <drm/drmP.h>
#include <drm/via_drm.h>
#include "via_drv.h"
void via_init_futex(drm_via_private_t *dev_priv)
{
unsigned int i;
DRM_DEBUG("\n");
for (i = 0; i < VIA_NR_XVMC_LOCKS; ++i) {
init_waitqueue_head(&(dev_priv->decoder_queue[i]));
XVMCLOCKPTR(dev_priv->sarea_priv, i)->lock = 0;
}
}
void via_cleanup_futex(drm_via_private_t *dev_priv)
{
}
void via_release_futex(drm_via_private_t *dev_priv, int context)
{
unsigned int i;
volatile int *lock;
if (!dev_priv->sarea_priv)
return;
for (i = 0; i < VIA_NR_XVMC_LOCKS; ++i) {
lock = (volatile int *)XVMCLOCKPTR(dev_priv->sarea_priv, i);
if ((_DRM_LOCKING_CONTEXT(*lock) == context)) {
if (_DRM_LOCK_IS_HELD(*lock)
&& (*lock & _DRM_LOCK_CONT)) {
wake_up(&(dev_priv->decoder_queue[i]));
}
*lock = 0;
}
}
}
int via_decoder_futex(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
drm_via_futex_t *fx = data;
volatile int *lock;
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
int ret = 0;
DRM_DEBUG("\n");
if (fx->lock >= VIA_NR_XVMC_LOCKS)
return -EFAULT;
lock = (volatile int *)XVMCLOCKPTR(sAPriv, fx->lock);
switch (fx->func) {
case VIA_FUTEX_WAIT:
DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx->lock],
(fx->ms / 10) * (HZ / 100), *lock != fx->val);
return ret;
case VIA_FUTEX_WAKE:
wake_up(&(dev_priv->decoder_queue[fx->lock]));
return 0;
}
return 0;
}