diff options
Diffstat (limited to 'bsd/drm_dma.h')
| -rw-r--r-- | bsd/drm_dma.h | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/bsd/drm_dma.h b/bsd/drm_dma.h deleted file mode 100644 index 4570a867..00000000 --- a/bsd/drm_dma.h +++ /dev/null @@ -1,171 +0,0 @@ -/* 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 "drmP.h" - -#ifndef __HAVE_DMA_WAITQUEUE -#define __HAVE_DMA_WAITQUEUE 0 -#endif -#ifndef __HAVE_DMA_RECLAIM -#define __HAVE_DMA_RECLAIM 0 -#endif -#ifndef __HAVE_SHARED_IRQ -#define __HAVE_SHARED_IRQ 0 -#endif - -#if __HAVE_DMA - -int DRM(dma_setup)( drm_device_t *dev ) -{ - - dev->dma = DRM(calloc)(1, sizeof(*dev->dma), DRM_MEM_DRIVER); - 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 __HAVE_PCI_DMA - 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++) { - if (dma->bufs[i].seglist[j] != 0) - DRM(pci_free)(dev, dma->bufs[i].buf_size, - (void *)dma->bufs[i].seglist[j], - dma->bufs[i].seglist_bus[j]); - } - DRM(free)(dma->bufs[i].seglist, - dma->bufs[i].seg_count - * sizeof(*dma->bufs[0].seglist), - DRM_MEM_SEGS); - DRM(free)(dma->bufs[i].seglist_bus, - dma->bufs[i].seg_count - * sizeof(*dma->bufs[0].seglist_bus), - DRM_MEM_SEGS); - } -#endif /* __HAVE_PCI_DMA */ - - if (dma->bufs[i].buf_count) { - for (j = 0; j < dma->bufs[i].buf_count; j++) { - DRM(free)(dma->bufs[i].buflist[j].dev_private, - dma->bufs[i].buflist[j].dev_priv_size, - DRM_MEM_BUFS); - } - DRM(free)(dma->bufs[i].buflist, - dma->bufs[i].buf_count * - sizeof(*dma->bufs[0].buflist), - DRM_MEM_BUFS); - } - } - - DRM(free)(dma->buflist, dma->buf_count * sizeof(*dma->buflist), - DRM_MEM_BUFS); - DRM(free)(dma->pagelist, dma->page_count * sizeof(*dma->pagelist), - DRM_MEM_PAGES); - DRM(free)(dev->dma, sizeof(*dev->dma), DRM_MEM_DRIVER); - 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; -} - -#if !__HAVE_DMA_RECLAIM -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; - } - } - } -} -#endif - -#if !__HAVE_IRQ -/* This stub DRM_IOCTL_CONTROL handler is for the drivers that used to require - * IRQs for DMA but no longer do. It maintains compatibility with the X Servers - * that try to use the control ioctl by simply returning success. - */ -int DRM(control)( DRM_IOCTL_ARGS ) -{ - drm_control_t ctl; - - DRM_COPY_FROM_USER_IOCTL( ctl, (drm_control_t *) data, sizeof(ctl) ); - - switch ( ctl.func ) { - case DRM_INST_HANDLER: - case DRM_UNINST_HANDLER: - return 0; - default: - return DRM_ERR(EINVAL); - } -} -#endif - -#endif /* __HAVE_DMA */ |