592ffb2175
Revert r338177, r338176, r338175, r338174, r338172 After long consultations with re@, core members and mmacy, revert these changes. Followup changes will be made to mark them as deprecated and prent a message about where to find the up-to-date driver. Followup commits will be made to make this clear in the installer. Followup commits to reduce POLA in ways we're still exploring. It's anticipated that after the freeze, this will be removed in 13-current (with the residual of the drm2 code copied to sys/arm/dev/drm2 for the TEGRA port's use w/o the intel or radeon drivers). Due to the impending freeze, there was no formal core vote for this. I've been talking to different core members all day, as well as Matt Macey and Glen Barber. Nobody is completely happy, all are grudgingly going along with this. Work is in progress to mitigate the negative effects as much as possible. Requested by: re@ (gjb, rgrimes)
97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*-
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* Copyright 2005 Thomas Hellstrom. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR(S), AND/OR THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Author: Thomas Hellstrom 2005.
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*
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* Video and XvMC related functions.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "dev/drm/drmP.h"
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#include "dev/drm/via_drm.h"
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#include "dev/drm/via_drv.h"
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void via_init_futex(drm_via_private_t * dev_priv)
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{
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unsigned int i;
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DRM_DEBUG("\n");
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for (i = 0; i < VIA_NR_XVMC_LOCKS; ++i) {
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DRM_INIT_WAITQUEUE(&(dev_priv->decoder_queue[i]));
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XVMCLOCKPTR(dev_priv->sarea_priv, i)->lock = 0;
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}
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}
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void via_cleanup_futex(drm_via_private_t * dev_priv)
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{
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}
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void via_release_futex(drm_via_private_t * dev_priv, int context)
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{
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unsigned int i;
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volatile int *lock;
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if (!dev_priv->sarea_priv)
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return;
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for (i = 0; i < VIA_NR_XVMC_LOCKS; ++i) {
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lock = (volatile int *)XVMCLOCKPTR(dev_priv->sarea_priv, i);
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if ((_DRM_LOCKING_CONTEXT(*lock) == context)) {
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if (_DRM_LOCK_IS_HELD(*lock)
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&& (*lock & _DRM_LOCK_CONT)) {
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DRM_WAKEUP(&(dev_priv->decoder_queue[i]));
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}
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*lock = 0;
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}
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}
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}
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int via_decoder_futex(struct drm_device *dev, void *data, struct drm_file *file_priv)
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{
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drm_via_futex_t *fx = data;
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volatile int *lock;
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drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
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drm_via_sarea_t *sAPriv = dev_priv->sarea_priv;
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int ret = 0;
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DRM_DEBUG("\n");
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if (fx->lock >= VIA_NR_XVMC_LOCKS)
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return -EFAULT;
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lock = (volatile int *)XVMCLOCKPTR(sAPriv, fx->lock);
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switch (fx->func) {
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case VIA_FUTEX_WAIT:
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DRM_WAIT_ON(ret, dev_priv->decoder_queue[fx->lock],
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(fx->ms / 10) * (DRM_HZ / 100), *lock != fx->val);
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return ret;
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case VIA_FUTEX_WAKE:
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DRM_WAKEUP(&(dev_priv->decoder_queue[fx->lock]));
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return 0;
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}
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return 0;
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}
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