mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
9fb0767374
- S3 Savage driver ported. - Added support for ATI_fragment_shader registers for r200. - Improved r300 support, needed for latest r300 DRI driver. - (possibly) r300 PCIE support, needs X.Org server from CVS. - Added support for PCI Matrox cards. - Software fallbacks fixed for Rage 128, which used to render badly or hang. - Some issues reported by WITNESS are fixed. - i915 module Makefile added, as the driver may now be working, but is untested. - Added scripts for copying and preprocessing DRM CVS for inclusion in the kernel. Thanks to Daniel Stone for getting me started on that.
134 lines
3.5 KiB
C
134 lines
3.5 KiB
C
/* drm_dma.c -- DMA IOCTL and function support -*- linux-c -*-
|
|
* Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com
|
|
*/
|
|
/*-
|
|
* Copyright 1999, 2000 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,
|
|
* 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
|
|
* VA LINUX SYSTEMS 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:
|
|
* Rickard E. (Rik) Faith <faith@valinux.com>
|
|
* Gareth Hughes <gareth@valinux.com>
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "dev/drm/drmP.h"
|
|
|
|
int drm_dma_setup(drm_device_t *dev)
|
|
{
|
|
|
|
dev->dma = malloc(sizeof(*dev->dma), M_DRM, M_NOWAIT | M_ZERO);
|
|
if (dev->dma == NULL)
|
|
return DRM_ERR(ENOMEM);
|
|
|
|
DRM_SPININIT(dev->dma_lock, "drmdma");
|
|
|
|
return 0;
|
|
}
|
|
|
|
void drm_dma_takedown(drm_device_t *dev)
|
|
{
|
|
drm_device_dma_t *dma = dev->dma;
|
|
int i, j;
|
|
|
|
if (dma == NULL)
|
|
return;
|
|
|
|
/* Clear dma buffers */
|
|
for (i = 0; i <= DRM_MAX_ORDER; i++) {
|
|
if (dma->bufs[i].seg_count) {
|
|
DRM_DEBUG("order %d: buf_count = %d,"
|
|
" seg_count = %d\n",
|
|
i,
|
|
dma->bufs[i].buf_count,
|
|
dma->bufs[i].seg_count);
|
|
for (j = 0; j < dma->bufs[i].seg_count; j++) {
|
|
drm_pci_free(dev, dma->bufs[i].seglist[j]);
|
|
}
|
|
free(dma->bufs[i].seglist, M_DRM);
|
|
}
|
|
|
|
if (dma->bufs[i].buf_count) {
|
|
for (j = 0; j < dma->bufs[i].buf_count; j++) {
|
|
free(dma->bufs[i].buflist[j].dev_private,
|
|
M_DRM);
|
|
}
|
|
free(dma->bufs[i].buflist, M_DRM);
|
|
}
|
|
}
|
|
|
|
free(dma->buflist, M_DRM);
|
|
free(dma->pagelist, M_DRM);
|
|
free(dev->dma, M_DRM);
|
|
dev->dma = NULL;
|
|
DRM_SPINUNINIT(dev->dma_lock);
|
|
}
|
|
|
|
|
|
void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf)
|
|
{
|
|
if (!buf) return;
|
|
|
|
buf->pending = 0;
|
|
buf->filp = NULL;
|
|
buf->used = 0;
|
|
}
|
|
|
|
void drm_reclaim_buffers(drm_device_t *dev, DRMFILE filp)
|
|
{
|
|
drm_device_dma_t *dma = dev->dma;
|
|
int i;
|
|
|
|
if (!dma) return;
|
|
for (i = 0; i < dma->buf_count; i++) {
|
|
if (dma->buflist[i]->filp == filp) {
|
|
switch (dma->buflist[i]->list) {
|
|
case DRM_LIST_NONE:
|
|
drm_free_buffer(dev, dma->buflist[i]);
|
|
break;
|
|
case DRM_LIST_WAIT:
|
|
dma->buflist[i]->list = DRM_LIST_RECLAIM;
|
|
break;
|
|
default:
|
|
/* Buffer already on hardware. */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Call into the driver-specific DMA handler */
|
|
int drm_dma(DRM_IOCTL_ARGS)
|
|
{
|
|
DRM_DEVICE;
|
|
|
|
if (dev->driver.dma_ioctl) {
|
|
return dev->driver.dma_ioctl(kdev, cmd, data, flags, p, filp);
|
|
} else {
|
|
DRM_DEBUG("DMA ioctl on driver with no dma handler\n");
|
|
return EINVAL;
|
|
}
|
|
}
|