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authorEric Anholt <anholt@freebsd.org>2005-08-16 17:20:18 +0000
committerEric Anholt <anholt@freebsd.org>2005-08-16 17:20:18 +0000
commit91c9c847299a1f27c92f8663902fcee72a65f9e4 (patch)
tree83096daf7e42ac8576cbb148131dbfad21dfe72f /bsd/drm_bufs.h
parent7af0186f4ccef285c2158770781ebfc3a26ddd66 (diff)
Remove the long-stale BSD non-core bits.
Prodded by: CVS breakage resulting in complaints about this directory.
Diffstat (limited to 'bsd/drm_bufs.h')
-rw-r--r--bsd/drm_bufs.h961
1 files changed, 0 insertions, 961 deletions
diff --git a/bsd/drm_bufs.h b/bsd/drm_bufs.h
deleted file mode 100644
index d27254c2..00000000
--- a/bsd/drm_bufs.h
+++ /dev/null
@@ -1,961 +0,0 @@
-/* drm_bufs.h -- Generic buffer template -*- linux-c -*-
- * Created: Thu Nov 23 03:10:50 2000 by gareth@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_PCI_DMA
-#define __HAVE_PCI_DMA 0
-#endif
-
-#ifndef __HAVE_SG
-#define __HAVE_SG 0
-#endif
-
-/*
- * Compute order. Can be made faster.
- */
-int DRM(order)( unsigned long size )
-{
- int order;
- unsigned long tmp;
-
- for ( order = 0, tmp = size ; tmp >>= 1 ; ++order );
-
- if ( size & ~(1 << order) )
- ++order;
-
- return order;
-}
-
-int DRM(addmap)( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_map_t request;
- drm_local_map_t *map;
- drm_map_list_entry_t *list;
-
- if (!(dev->flags & (FREAD|FWRITE)))
- return DRM_ERR(EACCES); /* Require read/write */
-
- DRM_COPY_FROM_USER_IOCTL( request, (drm_map_t *)data, sizeof(drm_map_t) );
-
- map = (drm_local_map_t *) DRM(alloc)( sizeof(*map), DRM_MEM_MAPS );
- if ( !map )
- return DRM_ERR(ENOMEM);
-
- map->offset = request.offset;
- map->size = request.size;
- map->type = request.type;
- map->flags = request.flags;
- map->mtrr = 0;
- map->handle = 0;
-
- /* Only allow shared memory to be removable since we only keep enough
- * book keeping information about shared memory to allow for removal
- * when processes fork.
- */
- if ( (map->flags & _DRM_REMOVABLE) && map->type != _DRM_SHM ) {
- DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
- return DRM_ERR(EINVAL);
- }
- DRM_DEBUG( "offset = 0x%08lx, size = 0x%08lx, type = %d\n",
- map->offset, map->size, map->type );
- if ( (map->offset & PAGE_MASK) || (map->size & PAGE_MASK) ) {
- DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
- return DRM_ERR(EINVAL);
- }
- if (map->offset + map->size < map->offset) {
- DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
- return DRM_ERR(EINVAL);
- }
-
- switch ( map->type ) {
- case _DRM_REGISTERS:
- drm_core_ioremap(map, dev);
- if (!(map->flags & _DRM_WRITE_COMBINING))
- break;
- /* FALLTHROUGH */
- case _DRM_FRAME_BUFFER:
-#if __REALLY_HAVE_MTRR
- if (DRM(mtrr_add)(map->offset, map->size, DRM_MTRR_WC) == 0)
- map->mtrr = 1;
-#endif
- break;
- case _DRM_SHM:
- map->handle = (void *)DRM(alloc)(map->size, DRM_MEM_SAREA);
- DRM_DEBUG( "%lu %d %p\n",
- map->size, DRM(order)( map->size ), map->handle );
- if ( !map->handle ) {
- DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
- return DRM_ERR(ENOMEM);
- }
- map->offset = (unsigned long)map->handle;
- if ( map->flags & _DRM_CONTAINS_LOCK ) {
- /* Prevent a 2nd X Server from creating a 2nd lock */
- DRM_LOCK();
- if (dev->lock.hw_lock != NULL) {
- DRM_UNLOCK();
- DRM(free)(map->handle, map->size,
- DRM_MEM_SAREA);
- DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
- return DRM_ERR(EBUSY);
- }
- dev->lock.hw_lock = map->handle; /* Pointer to lock */
- DRM_UNLOCK();
- }
- break;
-#if __REALLY_HAVE_AGP
- case _DRM_AGP:
- map->offset += dev->agp->base;
- map->mtrr = dev->agp->mtrr; /* for getmap */
- break;
-#endif
- case _DRM_SCATTER_GATHER:
- if (!dev->sg) {
- DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
- return DRM_ERR(EINVAL);
- }
- map->offset = map->offset + dev->sg->handle;
- break;
-
- default:
- DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
- return DRM_ERR(EINVAL);
- }
-
- list = DRM(calloc)(1, sizeof(*list), DRM_MEM_MAPS);
- if (list == NULL) {
- DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
- return DRM_ERR(EINVAL);
- }
- list->map = map;
-
- DRM_LOCK();
- TAILQ_INSERT_TAIL(dev->maplist, list, link);
- DRM_UNLOCK();
-
- request.offset = map->offset;
- request.size = map->size;
- request.type = map->type;
- request.flags = map->flags;
- request.mtrr = map->mtrr;
- request.handle = map->handle;
-
- if ( request.type != _DRM_SHM ) {
- request.handle = (void *)request.offset;
- }
-
- DRM_COPY_TO_USER_IOCTL( (drm_map_t *)data, request, sizeof(drm_map_t) );
-
- return 0;
-}
-
-
-/* Remove a map private from list and deallocate resources if the mapping
- * isn't in use.
- */
-
-int DRM(rmmap)( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_map_list_entry_t *list;
- drm_local_map_t *map;
- drm_map_t request;
-
- DRM_COPY_FROM_USER_IOCTL( request, (drm_map_t *)data, sizeof(request) );
-
- DRM_LOCK();
- TAILQ_FOREACH(list, dev->maplist, link) {
- map = list->map;
- if (map->handle == request.handle &&
- map->flags & _DRM_REMOVABLE)
- break;
- }
-
- /* No match found. */
- if (list == NULL) {
- DRM_UNLOCK();
- return DRM_ERR(EINVAL);
- }
- TAILQ_REMOVE(dev->maplist, list, link);
- DRM_UNLOCK();
-
- DRM(free)(list, sizeof(*list), DRM_MEM_MAPS);
-
- switch (map->type) {
- case _DRM_REGISTERS:
- case _DRM_FRAME_BUFFER:
-#if __REALLY_HAVE_MTRR
- if (map->mtrr) {
- int __unused retcode;
-
- retcode = DRM(mtrr_del)(map->offset, map->size,
- DRM_MTRR_WC);
- DRM_DEBUG("mtrr_del = %d\n", retcode);
- }
-#endif
- DRM(ioremapfree)(map);
- break;
- case _DRM_SHM:
- DRM(free)(map->handle, map->size, DRM_MEM_SAREA);
- break;
- case _DRM_AGP:
- case _DRM_SCATTER_GATHER:
- break;
- }
- DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
- return 0;
-}
-
-#if __HAVE_DMA
-
-
-static void DRM(cleanup_buf_error)(drm_device_t *dev, drm_buf_entry_t *entry)
-{
- int i;
-
-#if __HAVE_PCI_DMA
- if (entry->seg_count) {
- for (i = 0; i < entry->seg_count; i++) {
- if (entry->seglist[i] != 0)
- DRM(pci_free)(dev, entry->buf_size,
- (void *)entry->seglist[i],
- entry->seglist_bus[i]);
- }
- DRM(free)(entry->seglist,
- entry->seg_count *
- sizeof(*entry->seglist),
- DRM_MEM_SEGS);
- DRM(free)(entry->seglist_bus, entry->seg_count *
- sizeof(*entry->seglist_bus), DRM_MEM_SEGS);
-
- entry->seg_count = 0;
- }
-#endif /* __HAVE_PCI_DMA */
-
- if (entry->buf_count) {
- for (i = 0; i < entry->buf_count; i++) {
- DRM(free)(entry->buflist[i].dev_private,
- entry->buflist[i].dev_priv_size, DRM_MEM_BUFS);
- }
- DRM(free)(entry->buflist,
- entry->buf_count *
- sizeof(*entry->buflist),
- DRM_MEM_BUFS);
-
- entry->buf_count = 0;
- }
-}
-
-#if __REALLY_HAVE_AGP
-static int DRM(addbufs_agp)(drm_device_t *dev, drm_buf_desc_t *request)
-{
- drm_device_dma_t *dma = dev->dma;
- drm_buf_entry_t *entry;
- drm_buf_t *buf;
- unsigned long offset;
- unsigned long agp_offset;
- int count;
- int order;
- int size;
- int alignment;
- int page_order;
- int total;
- int byte_count;
- int i;
- drm_buf_t **temp_buflist;
-
- count = request->count;
- order = DRM(order)(request->size);
- size = 1 << order;
-
- alignment = (request->flags & _DRM_PAGE_ALIGN)
- ? round_page(size) : size;
- page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
- total = PAGE_SIZE << page_order;
-
- byte_count = 0;
- agp_offset = dev->agp->base + request->agp_start;
-
- DRM_DEBUG( "count: %d\n", count );
- DRM_DEBUG( "order: %d\n", order );
- DRM_DEBUG( "size: %d\n", size );
- DRM_DEBUG( "agp_offset: 0x%lx\n", agp_offset );
- DRM_DEBUG( "alignment: %d\n", alignment );
- DRM_DEBUG( "page_order: %d\n", page_order );
- DRM_DEBUG( "total: %d\n", total );
-
- entry = &dma->bufs[order];
-
- entry->buflist = DRM(alloc)( count * sizeof(*entry->buflist),
- DRM_MEM_BUFS );
- if ( !entry->buflist ) {
- return DRM_ERR(ENOMEM);
- }
- memset( entry->buflist, 0, count * sizeof(*entry->buflist) );
-
- entry->buf_size = size;
- entry->page_order = page_order;
-
- offset = 0;
-
- while ( entry->buf_count < count ) {
- buf = &entry->buflist[entry->buf_count];
- buf->idx = dma->buf_count + entry->buf_count;
- buf->total = alignment;
- buf->order = order;
- buf->used = 0;
-
- buf->offset = (dma->byte_count + offset);
- buf->bus_address = agp_offset + offset;
- buf->address = (void *)(agp_offset + offset);
- buf->next = NULL;
- buf->pending = 0;
- buf->filp = NULL;
-
- buf->dev_priv_size = dev->dev_priv_size;
- buf->dev_private = DRM(calloc)(1, buf->dev_priv_size,
- DRM_MEM_BUFS);
- if (buf->dev_private == NULL) {
- /* Set count correctly so we free the proper amount. */
- entry->buf_count = count;
- DRM(cleanup_buf_error)(dev, entry);
- return DRM_ERR(ENOMEM);
- }
-
- offset += alignment;
- entry->buf_count++;
- byte_count += PAGE_SIZE << page_order;
- }
-
- DRM_DEBUG( "byte_count: %d\n", byte_count );
-
- temp_buflist = DRM(realloc)( dma->buflist,
- dma->buf_count * sizeof(*dma->buflist),
- (dma->buf_count + entry->buf_count)
- * sizeof(*dma->buflist),
- DRM_MEM_BUFS );
- if (temp_buflist == NULL) {
- /* Free the entry because it isn't valid */
- DRM(cleanup_buf_error)(dev, entry);
- return DRM_ERR(ENOMEM);
- }
- dma->buflist = temp_buflist;
-
- for ( i = 0 ; i < entry->buf_count ; i++ ) {
- dma->buflist[i + dma->buf_count] = &entry->buflist[i];
- }
-
- dma->buf_count += entry->buf_count;
- dma->byte_count += byte_count;
-
- DRM_DEBUG( "dma->buf_count : %d\n", dma->buf_count );
- DRM_DEBUG( "entry->buf_count : %d\n", entry->buf_count );
-
- request->count = entry->buf_count;
- request->size = size;
-
- dma->flags = _DRM_DMA_USE_AGP;
-
- return 0;
-}
-#endif /* __REALLY_HAVE_AGP */
-
-#if __HAVE_PCI_DMA
-static int DRM(addbufs_pci)(drm_device_t *dev, drm_buf_desc_t *request)
-{
- drm_device_dma_t *dma = dev->dma;
- int count;
- int order;
- int size;
- int total;
- int page_order;
- drm_buf_entry_t *entry;
- vm_offset_t vaddr;
- drm_buf_t *buf;
- int alignment;
- unsigned long offset;
- int i;
- int byte_count;
- int page_count;
- unsigned long *temp_pagelist;
- drm_buf_t **temp_buflist;
- dma_addr_t bus_addr;
-
- count = request->count;
- order = DRM(order)(request->size);
- size = 1 << order;
-
- DRM_DEBUG( "count=%d, size=%d (%d), order=%d\n",
- request->count, request->size, size, order );
-
- alignment = (request->flags & _DRM_PAGE_ALIGN)
- ? round_page(size) : size;
- page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
- total = PAGE_SIZE << page_order;
-
- entry = &dma->bufs[order];
-
- entry->buflist = DRM(alloc)(count * sizeof(*entry->buflist),
- DRM_MEM_BUFS);
- entry->seglist = DRM(alloc)(count * sizeof(*entry->seglist),
- DRM_MEM_SEGS);
- entry->seglist_bus = DRM(alloc)(count * sizeof(*entry->seglist_bus),
- DRM_MEM_SEGS);
-
- /* Keep the original pagelist until we know all the allocations
- * have succeeded
- */
- temp_pagelist = DRM(alloc)((dma->page_count + (count << page_order)) *
- sizeof(*dma->pagelist), DRM_MEM_PAGES);
-
- if (entry->buflist == NULL || entry->seglist == NULL ||
- temp_pagelist == NULL) {
- DRM(free)(entry->buflist, count * sizeof(*entry->buflist),
- DRM_MEM_BUFS);
- DRM(free)(entry->seglist, count * sizeof(*entry->seglist),
- DRM_MEM_SEGS);
- DRM(free)(entry->seglist_bus, count *
- sizeof(*entry->seglist_bus), DRM_MEM_SEGS);
- return DRM_ERR(ENOMEM);
- }
-
- bzero(entry->buflist, count * sizeof(*entry->buflist));
- bzero(entry->seglist, count * sizeof(*entry->seglist));
-
- memcpy(temp_pagelist, dma->pagelist, dma->page_count *
- sizeof(*dma->pagelist));
-
- DRM_DEBUG( "pagelist: %d entries\n",
- dma->page_count + (count << page_order) );
-
- entry->buf_size = size;
- entry->page_order = page_order;
- byte_count = 0;
- page_count = 0;
-
- while ( entry->buf_count < count ) {
- vaddr = (vm_offset_t) DRM(pci_alloc)(dev, size, alignment,
- 0xfffffffful, &bus_addr);
- if (vaddr == 0) {
- /* Set count correctly so we free the proper amount. */
- entry->buf_count = count;
- entry->seg_count = count;
- DRM(cleanup_buf_error)(dev, entry);
- DRM(free)(temp_pagelist, (dma->page_count +
- (count << page_order)) * sizeof(*dma->pagelist),
- DRM_MEM_PAGES);
- return DRM_ERR(ENOMEM);
- }
-
- entry->seglist_bus[entry->seg_count] = bus_addr;
- entry->seglist[entry->seg_count++] = vaddr;
- for ( i = 0 ; i < (1 << page_order) ; i++ ) {
- DRM_DEBUG( "page %d @ 0x%08lx\n",
- dma->page_count + page_count,
- (long)vaddr + PAGE_SIZE * i );
- temp_pagelist[dma->page_count + page_count++] =
- vaddr + PAGE_SIZE * i;
- }
- for ( offset = 0 ;
- offset + size <= total && entry->buf_count < count ;
- offset += alignment, ++entry->buf_count ) {
- buf = &entry->buflist[entry->buf_count];
- buf->idx = dma->buf_count + entry->buf_count;
- buf->total = alignment;
- buf->order = order;
- buf->used = 0;
- buf->offset = (dma->byte_count + byte_count + offset);
- buf->address = (void *)(vaddr + offset);
- buf->bus_address = bus_addr + offset;
- buf->next = NULL;
- buf->pending = 0;
- buf->filp = NULL;
-
- buf->dev_priv_size = dev->dev_priv_size;
- buf->dev_private = DRM(alloc)(buf->dev_priv_size,
- DRM_MEM_BUFS);
- if (buf->dev_private == NULL) {
- /* Set count correctly so we free the proper amount. */
- entry->buf_count = count;
- entry->seg_count = count;
- DRM(cleanup_buf_error)(dev, entry);
- DRM(free)(temp_pagelist, (dma->page_count +
- (count << page_order)) *
- sizeof(*dma->pagelist), DRM_MEM_PAGES );
- return DRM_ERR(ENOMEM);
- }
- bzero(buf->dev_private, buf->dev_priv_size);
-
- DRM_DEBUG( "buffer %d @ %p\n",
- entry->buf_count, buf->address );
- }
- byte_count += PAGE_SIZE << page_order;
- }
-
- temp_buflist = DRM(realloc)( dma->buflist,
- dma->buf_count * sizeof(*dma->buflist),
- (dma->buf_count + entry->buf_count)
- * sizeof(*dma->buflist),
- DRM_MEM_BUFS );
- if (temp_buflist == NULL) {
- /* Free the entry because it isn't valid */
- DRM(cleanup_buf_error)(dev, entry);
- DRM(free)(temp_pagelist, (dma->page_count +
- (count << page_order)) * sizeof(*dma->pagelist),
- DRM_MEM_PAGES);
- return DRM_ERR(ENOMEM);
- }
- dma->buflist = temp_buflist;
-
- for ( i = 0 ; i < entry->buf_count ; i++ ) {
- dma->buflist[i + dma->buf_count] = &entry->buflist[i];
- }
-
- /* No allocations failed, so now we can replace the orginal pagelist
- * with the new one.
- */
- DRM(free)(dma->pagelist, dma->page_count * sizeof(*dma->pagelist),
- DRM_MEM_PAGES);
- dma->pagelist = temp_pagelist;
-
- dma->buf_count += entry->buf_count;
- dma->seg_count += entry->seg_count;
- dma->page_count += entry->seg_count << page_order;
- dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order);
-
- request->count = entry->buf_count;
- request->size = size;
-
- return 0;
-
-}
-#endif /* __HAVE_PCI_DMA */
-
-#if __REALLY_HAVE_SG
-static int DRM(addbufs_sg)(drm_device_t *dev, drm_buf_desc_t *request)
-{
- drm_device_dma_t *dma = dev->dma;
- drm_buf_entry_t *entry;
- drm_buf_t *buf;
- unsigned long offset;
- unsigned long agp_offset;
- int count;
- int order;
- int size;
- int alignment;
- int page_order;
- int total;
- int byte_count;
- int i;
- drm_buf_t **temp_buflist;
-
- count = request->count;
- order = DRM(order)(request->size);
- size = 1 << order;
-
- alignment = (request->flags & _DRM_PAGE_ALIGN)
- ? round_page(size) : size;
- page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
- total = PAGE_SIZE << page_order;
-
- byte_count = 0;
- agp_offset = request->agp_start;
-
- DRM_DEBUG( "count: %d\n", count );
- DRM_DEBUG( "order: %d\n", order );
- DRM_DEBUG( "size: %d\n", size );
- DRM_DEBUG( "agp_offset: %ld\n", agp_offset );
- DRM_DEBUG( "alignment: %d\n", alignment );
- DRM_DEBUG( "page_order: %d\n", page_order );
- DRM_DEBUG( "total: %d\n", total );
-
- entry = &dma->bufs[order];
-
- entry->buflist = DRM(calloc)(1, count * sizeof(*entry->buflist),
- DRM_MEM_BUFS);
- if (entry->buflist == NULL)
- return DRM_ERR(ENOMEM);
-
- entry->buf_size = size;
- entry->page_order = page_order;
-
- offset = 0;
-
- while ( entry->buf_count < count ) {
- buf = &entry->buflist[entry->buf_count];
- buf->idx = dma->buf_count + entry->buf_count;
- buf->total = alignment;
- buf->order = order;
- buf->used = 0;
-
- buf->offset = (dma->byte_count + offset);
- buf->bus_address = agp_offset + offset;
- buf->address = (void *)(agp_offset + offset + dev->sg->handle);
- buf->next = NULL;
- buf->pending = 0;
- buf->filp = NULL;
-
- buf->dev_priv_size = dev->dev_priv_size;
- buf->dev_private = DRM(calloc)(1, buf->dev_priv_size,
- DRM_MEM_BUFS);
- if (buf->dev_private == NULL) {
- /* Set count correctly so we free the proper amount. */
- entry->buf_count = count;
- DRM(cleanup_buf_error)(dev, entry);
- return DRM_ERR(ENOMEM);
- }
-
- DRM_DEBUG( "buffer %d @ %p\n",
- entry->buf_count, buf->address );
-
- offset += alignment;
- entry->buf_count++;
- byte_count += PAGE_SIZE << page_order;
- }
-
- DRM_DEBUG( "byte_count: %d\n", byte_count );
-
- temp_buflist = DRM(realloc)( dma->buflist,
- dma->buf_count * sizeof(*dma->buflist),
- (dma->buf_count + entry->buf_count)
- * sizeof(*dma->buflist),
- DRM_MEM_BUFS );
- if (temp_buflist == NULL) {
- /* Free the entry because it isn't valid */
- DRM(cleanup_buf_error)(dev, entry);
- return DRM_ERR(ENOMEM);
- }
- dma->buflist = temp_buflist;
-
- for ( i = 0 ; i < entry->buf_count ; i++ ) {
- dma->buflist[i + dma->buf_count] = &entry->buflist[i];
- }
-
- dma->buf_count += entry->buf_count;
- dma->byte_count += byte_count;
-
- DRM_DEBUG( "dma->buf_count : %d\n", dma->buf_count );
- DRM_DEBUG( "entry->buf_count : %d\n", entry->buf_count );
-
- request->count = entry->buf_count;
- request->size = size;
-
- dma->flags = _DRM_DMA_USE_SG;
-
- return 0;
-}
-#endif /* __REALLY_HAVE_SG */
-
-int DRM(addbufs)( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_buf_desc_t request;
- int err;
- int order;
-
- DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_desc_t *)data, sizeof(request) );
-
- if (request.count < 0 || request.count > 4096)
- return DRM_ERR(EINVAL);
-
- order = DRM(order)(request.size);
- if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER)
- return DRM_ERR(EINVAL);
-
- DRM_SPINLOCK(&dev->dma_lock);
- /* No more allocations after first buffer-using ioctl. */
- if (dev->buf_use != 0) {
- DRM_SPINUNLOCK(&dev->dma_lock);
- return DRM_ERR(EBUSY);
- }
- /* No more than one allocation per order */
- if (dev->dma->bufs[order].buf_count != 0) {
- DRM_SPINUNLOCK(&dev->dma_lock);
- return DRM_ERR(ENOMEM);
- }
-
-#if __REALLY_HAVE_AGP
- if ( request.flags & _DRM_AGP_BUFFER )
- err = DRM(addbufs_agp)(dev, &request);
- else
-#endif
-#if __REALLY_HAVE_SG
- if ( request.flags & _DRM_SG_BUFFER )
- err = DRM(addbufs_sg)(dev, &request);
- else
-#endif
-#if __HAVE_PCI_DMA
- err = DRM(addbufs_pci)(dev, &request);
-#else
- err = DRM_ERR(EINVAL);
-#endif
- DRM_SPINUNLOCK(&dev->dma_lock);
-
- DRM_COPY_TO_USER_IOCTL((drm_buf_desc_t *)data, request, sizeof(request));
-
- return err;
-}
-
-int DRM(infobufs)( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_device_dma_t *dma = dev->dma;
- drm_buf_info_t request;
- int i;
- int count;
- int retcode = 0;
-
- DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_info_t *)data, sizeof(request) );
-
- DRM_SPINLOCK(&dev->dma_lock);
- ++dev->buf_use; /* Can't allocate more after this call */
- DRM_SPINUNLOCK(&dev->dma_lock);
-
- for ( i = 0, count = 0 ; i < DRM_MAX_ORDER + 1 ; i++ ) {
- if ( dma->bufs[i].buf_count ) ++count;
- }
-
- DRM_DEBUG( "count = %d\n", count );
-
- if ( request.count >= count ) {
- for ( i = 0, count = 0 ; i < DRM_MAX_ORDER + 1 ; i++ ) {
- if ( dma->bufs[i].buf_count ) {
- drm_buf_desc_t from;
-
- from.count = dma->bufs[i].buf_count;
- from.size = dma->bufs[i].buf_size;
- from.low_mark = dma->bufs[i].freelist.low_mark;
- from.high_mark = dma->bufs[i].freelist.high_mark;
-
- if (DRM_COPY_TO_USER(&request.list[count], &from,
- sizeof(drm_buf_desc_t)) != 0) {
- retcode = DRM_ERR(EFAULT);
- break;
- }
-
- DRM_DEBUG( "%d %d %d %d %d\n",
- i,
- dma->bufs[i].buf_count,
- dma->bufs[i].buf_size,
- dma->bufs[i].freelist.low_mark,
- dma->bufs[i].freelist.high_mark );
- ++count;
- }
- }
- }
- request.count = count;
-
- DRM_COPY_TO_USER_IOCTL( (drm_buf_info_t *)data, request, sizeof(request) );
-
- return retcode;
-}
-
-int DRM(markbufs)( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_device_dma_t *dma = dev->dma;
- drm_buf_desc_t request;
- int order;
-
- DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_desc_t *)data, sizeof(request) );
-
- DRM_DEBUG( "%d, %d, %d\n",
- request.size, request.low_mark, request.high_mark );
-
-
- order = DRM(order)(request.size);
- if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER ||
- request.low_mark < 0 || request.high_mark < 0) {
- return DRM_ERR(EINVAL);
- }
-
- DRM_SPINLOCK(&dev->dma_lock);
- if (request.low_mark > dma->bufs[order].buf_count ||
- request.high_mark > dma->bufs[order].buf_count) {
- return DRM_ERR(EINVAL);
- }
-
- dma->bufs[order].freelist.low_mark = request.low_mark;
- dma->bufs[order].freelist.high_mark = request.high_mark;
- DRM_SPINUNLOCK(&dev->dma_lock);
-
- return 0;
-}
-
-int DRM(freebufs)( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_device_dma_t *dma = dev->dma;
- drm_buf_free_t request;
- int i;
- int idx;
- drm_buf_t *buf;
- int retcode = 0;
-
- DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_free_t *)data, sizeof(request) );
-
- DRM_DEBUG( "%d\n", request.count );
-
- DRM_SPINLOCK(&dev->dma_lock);
- for ( i = 0 ; i < request.count ; i++ ) {
- if (DRM_COPY_FROM_USER(&idx, &request.list[i], sizeof(idx))) {
- retcode = DRM_ERR(EFAULT);
- break;
- }
- if ( idx < 0 || idx >= dma->buf_count ) {
- DRM_ERROR( "Index %d (of %d max)\n",
- idx, dma->buf_count - 1 );
- retcode = DRM_ERR(EINVAL);
- break;
- }
- buf = dma->buflist[idx];
- if ( buf->filp != filp ) {
- DRM_ERROR("Process %d freeing buffer not owned\n",
- DRM_CURRENTPID);
- retcode = DRM_ERR(EINVAL);
- break;
- }
- DRM(free_buffer)( dev, buf );
- }
- DRM_SPINUNLOCK(&dev->dma_lock);
-
- return retcode;
-}
-
-int DRM(mapbufs)( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_device_dma_t *dma = dev->dma;
- int retcode = 0;
- const int zero = 0;
- vm_offset_t address;
- struct vmspace *vms;
-#ifdef __FreeBSD__
- vm_ooffset_t foff;
- vm_size_t size;
- vm_offset_t vaddr;
-#endif /* __FreeBSD__ */
-#ifdef __NetBSD__
- struct vnode *vn;
- vm_size_t size;
- vaddr_t vaddr;
-#endif /* __NetBSD__ */
-
- drm_buf_map_t request;
- int i;
-
- DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_map_t *)data, sizeof(request) );
-
-#ifdef __NetBSD__
- if (!vfinddev(kdev, VCHR, &vn))
- return 0; /* FIXME: Shouldn't this be EINVAL or something? */
-#endif /* __NetBSD__ */
-
-#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
- vms = p->td_proc->p_vmspace;
-#else
- vms = p->p_vmspace;
-#endif
-
- DRM_SPINLOCK(&dev->dma_lock);
- dev->buf_use++; /* Can't allocate more after this call */
- DRM_SPINUNLOCK(&dev->dma_lock);
-
- if (request.count < dma->buf_count)
- goto done;
-
- if ((__HAVE_AGP && (dma->flags & _DRM_DMA_USE_AGP)) ||
- (__HAVE_SG && (dma->flags & _DRM_DMA_USE_SG))) {
- drm_local_map_t *map = dev->agp_buffer_map;
-
- if (map == NULL) {
- retcode = EINVAL;
- goto done;
- }
- size = round_page(map->size);
- foff = map->offset;
- } else {
- size = round_page(dma->byte_count),
- foff = 0;
- }
-
-#ifdef __FreeBSD__
- vaddr = round_page((vm_offset_t)vms->vm_daddr + MAXDSIZ);
- retcode = vm_mmap(&vms->vm_map, &vaddr, size, PROT_READ | PROT_WRITE,
- VM_PROT_ALL, MAP_SHARED, SLIST_FIRST(&kdev->si_hlist), foff );
-#elif defined(__NetBSD__)
- vaddr = round_page((vaddr_t)vms->vm_daddr + MAXDSIZ);
- retcode = uvm_mmap(&vms->vm_map, &vaddr, size,
- UVM_PROT_READ | UVM_PROT_WRITE, UVM_PROT_ALL, MAP_SHARED,
- &vn->v_uobj, foff, p->p_rlimit[RLIMIT_MEMLOCK].rlim_cur);
-#endif /* __NetBSD__ */
- if (retcode)
- goto done;
-
- request.virtual = (void *)vaddr;
-
- for ( i = 0 ; i < dma->buf_count ; i++ ) {
- if (DRM_COPY_TO_USER(&request.list[i].idx,
- &dma->buflist[i]->idx, sizeof(request.list[0].idx))) {
- retcode = EFAULT;
- goto done;
- }
- if (DRM_COPY_TO_USER(&request.list[i].total,
- &dma->buflist[i]->total, sizeof(request.list[0].total))) {
- retcode = EFAULT;
- goto done;
- }
- if (DRM_COPY_TO_USER(&request.list[i].used, &zero,
- sizeof(zero))) {
- retcode = EFAULT;
- goto done;
- }
- address = vaddr + dma->buflist[i]->offset; /* *** */
- if (DRM_COPY_TO_USER(&request.list[i].address, &address,
- sizeof(address))) {
- retcode = EFAULT;
- goto done;
- }
- }
-
- done:
- request.count = dma->buf_count;
-
- DRM_DEBUG( "%d buffers, retcode = %d\n", request.count, retcode );
-
- DRM_COPY_TO_USER_IOCTL((drm_buf_map_t *)data, request, sizeof(request));
-
- return DRM_ERR(retcode);
-}
-
-#endif /* __HAVE_DMA */