mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 14:21:47 +00:00
129 lines
3.3 KiB
C
129 lines
3.3 KiB
C
/*
|
|
* Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
|
|
* Copyright 2001-2003 S3 Graphics, Inc. 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
|
|
* VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS 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.
|
|
*/
|
|
#include "drmP.h"
|
|
#include "via_drm.h"
|
|
#include "via_drv.h"
|
|
|
|
static int via_do_init_map(drm_device_t * dev, drm_via_init_t * init)
|
|
{
|
|
drm_via_private_t *dev_priv = dev->dev_private;
|
|
|
|
DRM_DEBUG("%s\n", __FUNCTION__);
|
|
|
|
dev_priv->sarea = drm_getsarea(dev);
|
|
if (!dev_priv->sarea) {
|
|
DRM_ERROR("could not find sarea!\n");
|
|
dev->dev_private = (void *)dev_priv;
|
|
via_do_cleanup_map(dev);
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev_priv->fb = drm_core_findmap(dev, init->fb_offset);
|
|
if (!dev_priv->fb) {
|
|
DRM_ERROR("could not find framebuffer!\n");
|
|
dev->dev_private = (void *)dev_priv;
|
|
via_do_cleanup_map(dev);
|
|
return -EINVAL;
|
|
}
|
|
dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset);
|
|
if (!dev_priv->mmio) {
|
|
DRM_ERROR("could not find mmio region!\n");
|
|
dev->dev_private = (void *)dev_priv;
|
|
via_do_cleanup_map(dev);
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev_priv->sarea_priv =
|
|
(drm_via_sarea_t *) ((u8 *) dev_priv->sarea->handle +
|
|
init->sarea_priv_offset);
|
|
|
|
dev_priv->agpAddr = init->agpAddr;
|
|
|
|
via_init_futex(dev_priv);
|
|
|
|
via_init_dmablit(dev);
|
|
|
|
dev->dev_private = (void *)dev_priv;
|
|
return 0;
|
|
}
|
|
|
|
int via_do_cleanup_map(drm_device_t * dev)
|
|
{
|
|
via_dma_cleanup(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int via_map_init(DRM_IOCTL_ARGS)
|
|
{
|
|
DRM_DEVICE;
|
|
drm_via_init_t init;
|
|
|
|
DRM_DEBUG("%s\n", __FUNCTION__);
|
|
|
|
DRM_COPY_FROM_USER_IOCTL(init, (drm_via_init_t __user *) data,
|
|
sizeof(init));
|
|
|
|
switch (init.func) {
|
|
case VIA_INIT_MAP:
|
|
return via_do_init_map(dev, &init);
|
|
case VIA_CLEANUP_MAP:
|
|
return via_do_cleanup_map(dev);
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
int via_driver_load(drm_device_t *dev, unsigned long chipset)
|
|
{
|
|
drm_via_private_t *dev_priv;
|
|
int ret = 0;
|
|
|
|
dev_priv = drm_calloc(1, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
|
|
if (dev_priv == NULL)
|
|
return DRM_ERR(ENOMEM);
|
|
|
|
dev->dev_private = (void *)dev_priv;
|
|
|
|
dev_priv->chipset = chipset;
|
|
|
|
ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
|
|
if (ret) {
|
|
drm_free(dev_priv, sizeof(*dev_priv), DRM_MEM_DRIVER);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int via_driver_unload(drm_device_t *dev)
|
|
{
|
|
drm_via_private_t *dev_priv = dev->dev_private;
|
|
|
|
drm_sman_takedown(&dev_priv->sman);
|
|
|
|
drm_free(dev_priv, sizeof(drm_via_private_t), DRM_MEM_DRIVER);
|
|
|
|
return 0;
|
|
}
|
|
|