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/* i810_state.c -- State support for i810 g200/g400 -*- linux-c -*-
*
* Created: February 2000 by keithw@precisioninsight.com
*
* Copyright 1999 Precision Insight, 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, distribute, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* PRECISION INSIGHT 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.
*
* Authors:
* Keith Whitwell <keithw@precisioninsight.com>
*
*/
#define __NO_VERSION__
#include "drmP.h"
#include "i810_drv.h"
#include "i810_dma.h"
#include "i810_drm_public.h"
static int i810DmaGeneral(drm_device_t *dev, drm_i810_general_t *args)
{
drm_device_dma_t *dma = dev->dma;
drm_buf_t *buf = dma->buflist[ args->idx ];
drm_i810_buf_priv_t *buf_priv = (drm_i810_buf_priv_t *)buf->dev_private;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
drm_dma_t d;
buf_priv->dma_type = I810_DMA_GENERAL;
buf_priv->age = args->age;
buf->used = args->used;
if (I810_VERBOSE)
printk("i810DmaGeneral idx %d used %d\n", args->idx, buf->used);
d.context = DRM_KERNEL_CONTEXT;
d.send_count = 1;
d.send_indices = &buf->idx;
d.send_sizes = &buf->used;
d.flags = 0;
d.request_count = 0;
d.request_size = 0;
d.request_indices = NULL;
d.request_sizes = NULL;
d.granted_count = 0;
atomic_inc(&dev_priv->pending_bufs);
if((drm_dma_enqueue(dev, &d)) != 0)
atomic_dec(&dev_priv->pending_bufs);
i810_dma_schedule(dev, 1);
return 0;
}
static int i810DmaVertex(drm_device_t *dev, drm_i810_vertex_t *args)
{
drm_device_dma_t *dma = dev->dma;
drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
drm_i810_buf_priv_t *buf_priv;
drm_buf_t *buf;
drm_dma_t d;
buf = dma->buflist[ args->idx ];
buf->used = args->real_used;
if (I810_VERBOSE)
printk("i810DmaVertex idx %d used %d\n", args->idx, buf->used);
buf_priv = buf->dev_private;
buf_priv->dma_type = I810_DMA_VERTEX;
buf_priv->vertex_real_idx = args->real_idx;
buf_priv->vertex_discard = args->discard;
buf_priv->nbox = sarea_priv->nbox;
buf_priv->age = args->age;
if (buf_priv->nbox >= I810_NR_SAREA_CLIPRECTS)
buf_priv->nbox = I810_NR_SAREA_CLIPRECTS;
if (buf_priv->nbox)
memcpy( buf_priv->boxes,
sarea_priv->boxes,
buf_priv->nbox * sizeof(xf86drmClipRectRec));
d.context = DRM_KERNEL_CONTEXT;
d.send_count = 1;
d.send_indices = &buf->idx;
d.send_sizes = &buf->used;
d.flags = 0;
d.request_count = 0;
d.request_size = 0;
d.request_indices = NULL;
d.request_sizes = NULL;
d.granted_count = 0;
atomic_inc(&dev_priv->pending_bufs);
if((drm_dma_enqueue(dev, &d)) != 0)
atomic_dec(&dev_priv->pending_bufs);
i810_dma_schedule(dev, 1);
return 0;
}
int i810_dma_general(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_general_t general;
int retcode = 0;
copy_from_user_ret(&general, (drm_i810_general_t *)arg, sizeof(general),
-EFAULT);
if (I810_VERBOSE)
printk("i810 dma general idx %d used %d\n",
general.idx, general.used);
retcode = i810DmaGeneral(dev, &general);
return retcode;
}
int i810_dma_vertex(struct inode *inode, struct file *filp,
unsigned int cmd, unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_i810_vertex_t vertex;
int retcode = 0;
copy_from_user_ret(&vertex, (drm_i810_vertex_t *)arg, sizeof(vertex),
-EFAULT);
if (I810_VERBOSE)
printk("i810 dma vertex, idx %d used %d"
" real_idx %d discard %d\n",
vertex.idx, vertex.real_used, vertex.real_idx,
vertex.discard);
retcode = i810DmaVertex(dev, &vertex);
return retcode;
}
int i810_dma(struct inode *inode, struct file *filp, unsigned int cmd,
unsigned long arg)
{
drm_file_t *priv = filp->private_data;
drm_device_t *dev = priv->dev;
drm_device_dma_t *dma = dev->dma;
int retcode = 0;
drm_dma_t d;
copy_from_user_ret(&d, (drm_dma_t *)arg, sizeof(d), -EFAULT);
DRM_DEBUG("%d %d: %d send, %d req\n",
current->pid, d.context, d.send_count, d.request_count);
/* Per-context queues are unworkable if you are trying to do
* state management from the client.
*/
d.context = DRM_KERNEL_CONTEXT;
d.flags &= ~_DRM_DMA_WHILE_LOCKED;
/* Please don't send us buffers.
*/
if (d.send_count != 0) {
DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n",
current->pid, d.send_count);
return -EINVAL;
}
/* We'll send you buffers.
*/
if (d.request_count < 0 || d.request_count > dma->buf_count) {
DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n",
current->pid, d.request_count, dma->buf_count);
return -EINVAL;
}
d.granted_count = 0;
if (!retcode && d.request_count) {
retcode = drm_dma_get_buffers(dev, &d);
}
copy_to_user_ret((drm_dma_t *)arg, &d, sizeof(d), -EFAULT);
return retcode;
}
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