i915_irq.c revision 60405de4d8688d96dd05157c28db3ade5c9bc234
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* BEGIN CSTYLED */
/* i915_irq.c -- IRQ support for the I915 -*- linux-c -*-
*/
/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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,
* 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.
* 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.
*
**************************************************************************/
#pragma ident "%Z%%M% %I% %E% SMI"
#include "drmP.h"
#include "drm.h"
#include "i915_drm.h"
#include "i915_drv.h"
#define USER_INT_FLAG 0x2
{
temp &= USER_INT_FLAG;
if (temp == 0) {
return (IRQ_NONE);
}
return IRQ_HANDLED;
}
{
/*NOSTRICT*/
BEGIN_LP_RING(2);
OUT_RING(0);
/*LINT*/
return ret;
}
{
int ret = 0;
return 0;
DRM_ERROR("%s: EBUSY -- rec: %d emitted: %d\n",
}
return ret;
}
/* Needs the lock as it touches the ring.
*/
/*ARGSUSED*/
{
int result;
if (!dev_priv) {
}
sizeof (drm_i915_irq_emit32_t));
} else
sizeof(emit));
DRM_ERROR("copy_to_user\n");
}
return 0;
}
/* Doesn't need the hardware lock.
*/
/*ARGSUSED*/
{
if (!dev_priv) {
}
sizeof(irqwait));
}
/* drm_dma.h hooks
*/
{
}
{
}
{
if (!dev_priv)
return;
#if defined(__SOLARIS__) || defined(sun)
#endif
}