/*
*/
/*
* drm_agpsupport.h -- DRM support for AGP/GART backend -*- linux-c -*-
* Created: Mon Dec 13 09:56:45 1999 by faith@precisioninsight.com
*/
/*
* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
* 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* 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:
* Rickard E. (Rik) Faith <faith@valinux.com>
* Gareth Hughes <gareth@valinux.com>
*
*/
#include "drm.h"
#include "drmP.h"
#ifndef AGP_PAGE_SIZE
#endif
/*
* The agpa_key field of struct agp_allocate_t actually is
* an index to an array. It can be zero. But we will use
* this agpa_key as a handle returned to userland. Generally,
* 0 is not a valid value for a handle, so we add an offset
* to the key to get a handle.
*/
/*ARGSUSED*/
int
{
int ret;
/*
* device_is_agp returns a tristate:
* 0 = not AGP;
* 1 = definitely AGP;
* 2 = fall back to PCI capability
*/
if (ret != DRM_MIGHT_BE_AGP)
return (ret);
}
}
/*ARGSUSED*/
int
{
}
/*ARGSUSED*/
int
{
return (EINVAL);
return (0);
}
/*ARGSUSED*/
int
{
DRM_ERROR("drm_agp_acquire : agp isn't initialized yet");
return (ENODEV);
}
if (ret) {
DRM_ERROR("drm_agp_acquired: AGPIOC_ACQUIRE failed\n");
return (EIO);
}
return (0);
}
/*ARGSUSED*/
int
{
return (ENODEV);
return (EBUSY);
if (ret) {
DRM_ERROR("drm_agp_release: AGPIOC_RELEASE failed\n");
return (ENXIO);
}
return (ret);
}
int
{
if (ret == 0)
return (ret);
}
/*ARGSUSED*/
int
{
return (ENODEV);
return (EBUSY);
if (ret) {
DRM_ERROR("drm_agp_enable: failed");
return (EIO);
}
return (0);
}
/*ARGSUSED*/
int
{
int pages;
return (EINVAL);
if (ret) {
return (ret);
}
/* physical is used only by i810 driver */
/*
* If failed to ddi_copyout(), we will free allocated AGP memory
* when closing drm
*/
return (0);
}
/*ARGSUSED*/
static drm_agp_mem_t *
{
return (entry);
}
return (NULL);
}
/*ARGSUSED*/
int
{
return (EINVAL);
return (EINVAL);
return (EINVAL);
if (ret) {
DRM_ERROR("drm_agp_unbind: AGPIOC_UNBIND failed");
return (EIO);
}
return (0);
}
/*ARGSUSED*/
int
{
int start;
return (EINVAL);
return (EINVAL);
DRM_ERROR("drm_agp_bind: failed key=%x, start=0x%x, "
return (EIO);
}
return (0);
}
/*ARGSUSED*/
int
{
int agpu_key;
return (EINVAL);
return (EINVAL);
if (ret) {
DRM_ERROR("drm_agp_free: AGPIOC_DEALLOCATE failed,"
return (EIO);
}
return (0);
}
/*ARGSUSED*/
{
DRM_DEBUG("drm_agp_init\n");
if (retval != 0) {
DRM_ERROR("drm_agp_init: failed to get layerd ident, retval=%d",
retval);
goto err_1;
}
if (retval != 0) {
DRM_ERROR("drm_agp_init: failed to open %s, retval=%d",
AGP_DEVICE, retval);
goto err_2;
}
if (retval != 0) {
DRM_ERROR("drm_agp_init: failed to get agpinfo, retval=%d",
retval);
goto err_3;
}
return (agp);
return (NULL);
}
/*ARGSUSED*/
void
{
}
/*ARGSUSED*/
void *
{
return (NULL);
}
/*ARGSUSED*/
int
{
return (1);
}
/*ARGSUSED*/
int
{
if (ret) {
DRM_DEBUG("drm_agp_bind_memory: AGPIOC_BIND failed");
return (EIO);
}
return (0);
}
/*ARGSUSED*/
int
{
return (EINVAL);
return (EINVAL);
if (ret) {
DRM_ERROR("drm_agp_unbind: AGPIO_UNBIND failed");
return (EIO);
}
return (0);
}