forked from Minki/linux
c0e09200dc
With the coming of kernel based modesetting and the memory manager stuff, the everything in one directory approach was getting very ugly and starting to be unmanageable. This restructures the drm along the lines of other kernel components. It creates a drivers/gpu/drm directory and moves the hw drivers into subdirectores. It moves the includes into an include/drm, and sets up the unifdef for the userspace headers we should be exporting. Signed-off-by: Dave Airlie <airlied@redhat.com>
94 lines
2.7 KiB
C
94 lines
2.7 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 "drmP.h"
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#include "via_drm.h"
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#include "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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