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Diffstat (limited to 'bsd/drm/bufs.c')
-rw-r--r--bsd/drm/bufs.c500
1 files changed, 0 insertions, 500 deletions
diff --git a/bsd/drm/bufs.c b/bsd/drm/bufs.c
deleted file mode 100644
index f283bab2..00000000
--- a/bsd/drm/bufs.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/* bufs.c -- IOCTLs to manage buffers -*- c -*-
- * Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com
- *
- * Copyright 1999 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
- * 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:
- * Rickard E. (Rik) Faith <faith@valinux.com>
- *
- */
-
-#define __NO_VERSION__
-#include "drmP.h"
-#include <sys/mman.h>
-#include <vm/vm.h>
-#include <vm/pmap.h>
-#include <vm/vm_extern.h>
-#include <vm/vm_map.h>
-
- /* 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(dev_t kdev, u_long cmd, caddr_t data,
- int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_map_t *map;
-
- if (!(dev->flags & (FREAD|FWRITE)))
- return EACCES; /* Require read/write */
-
- map = drm_alloc(sizeof(*map), DRM_MEM_MAPS);
- if (!map) return ENOMEM;
- *map = *(drm_map_t *) data;
-
- DRM_DEBUG("offset = 0x%08lx, size = 0x%08lx, type = %d\n",
- map->offset, map->size, map->type);
- if ((map->offset & (PAGE_SIZE-1)) || (map->size & (PAGE_SIZE-1))) {
- drm_free(map, sizeof(*map), DRM_MEM_MAPS);
- DRM_DEBUG("offset or size not page aligned\n");
- return EINVAL;
- }
- map->mtrr = -1;
- map->handle = 0;
-
- switch (map->type) {
- case _DRM_REGISTERS:
- case _DRM_FRAME_BUFFER:
- if (map->offset + map->size < map->offset
- /* || map->offset < virt_to_phys(high_memory) */) {
- drm_free(map, sizeof(*map), DRM_MEM_MAPS);
- DRM_DEBUG("bad frame buffer size\n");
- return EINVAL;
- }
-#ifdef CONFIG_MTRR
- if (map->type == _DRM_FRAME_BUFFER
- || (map->flags & _DRM_WRITE_COMBINING)) {
- map->mtrr = mtrr_add(map->offset, map->size,
- MTRR_TYPE_WRCOMB, 1);
- }
-#endif
- map->handle = drm_ioremap(map->offset, map->size);
- break;
-
-
- case _DRM_SHM:
- DRM_DEBUG("%ld %d\n", map->size, drm_order(map->size));
- map->handle = (void *)drm_alloc_pages(drm_order(map->size)
- - PAGE_SHIFT,
- DRM_MEM_SAREA);
- if (!map->handle) {
- drm_free(map, sizeof(*map), DRM_MEM_MAPS);
- return ENOMEM;
- }
- map->offset = (unsigned long)map->handle;
- if (map->flags & _DRM_CONTAINS_LOCK) {
- dev->lock.hw_lock = map->handle; /* Pointer to lock */
- }
- break;
-#ifdef DRM_AGP
- case _DRM_AGP:
- map->offset = map->offset + dev->agp->base;
- break;
-#endif
- default:
- drm_free(map, sizeof(*map), DRM_MEM_MAPS);
- DRM_DEBUG("bad type\n");
- return EINVAL;
- }
-
- lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
- if (dev->maplist) {
- ++dev->map_count;
- dev->maplist = drm_realloc(dev->maplist,
- (dev->map_count-1)
- * sizeof(*dev->maplist),
- dev->map_count
- * sizeof(*dev->maplist),
- DRM_MEM_MAPS);
- } else {
- dev->map_count = 1;
- dev->maplist = drm_alloc(dev->map_count*sizeof(*dev->maplist),
- DRM_MEM_MAPS);
- }
- dev->maplist[dev->map_count-1] = map;
- lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
-
- *(drm_map_t *) data = *map;
- if (map->type != _DRM_SHM)
- ((drm_map_t *)data)->handle = (void *) map->offset;
-
- return 0;
-}
-
-int drm_addbufs(dev_t kdev, u_long cmd, caddr_t data,
- int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_device_dma_t *dma = dev->dma;
- drm_buf_desc_t request;
- int count;
- int order;
- int size;
- int total;
- int page_order;
- drm_buf_entry_t *entry;
- unsigned long page;
- drm_buf_t *buf;
- int alignment;
- unsigned long offset;
- int i;
- int byte_count;
- int page_count;
-
- if (!dma) return EINVAL;
-
- request = *(drm_buf_desc_t *) data;
-
- count = request.count;
- order = drm_order(request.size);
- size = 1 << order;
-
- DRM_DEBUG("count = %d, size = %d (%d), order = %d, queue_count = %d\n",
- request.count, request.size, size, order, dev->queue_count);
-
- if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) return EINVAL;
- if (dev->queue_count) return EBUSY; /* Not while in use */
-
- 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;
-
- simple_lock(&dev->count_lock);
- if (dev->buf_use) {
- simple_unlock(&dev->count_lock);
- return EBUSY;
- }
- atomic_inc(&dev->buf_alloc);
- simple_unlock(&dev->count_lock);
-
- lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc);
- entry = &dma->bufs[order];
- if (entry->buf_count) {
- lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
- atomic_dec(&dev->buf_alloc);
- return ENOMEM; /* May only call once for each order */
- }
-
- entry->buflist = drm_alloc(count * sizeof(*entry->buflist),
- DRM_MEM_BUFS);
- if (!entry->buflist) {
- lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
- atomic_dec(&dev->buf_alloc);
- return ENOMEM;
- }
- memset(entry->buflist, 0, count * sizeof(*entry->buflist));
-
- entry->seglist = drm_alloc(count * sizeof(*entry->seglist),
- DRM_MEM_SEGS);
- if (!entry->seglist) {
- drm_free(entry->buflist,
- count * sizeof(*entry->buflist),
- DRM_MEM_BUFS);
- lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
- atomic_dec(&dev->buf_alloc);
- return ENOMEM;
- }
- memset(entry->seglist, 0, count * sizeof(*entry->seglist));
-
- dma->pagelist = drm_realloc(dma->pagelist,
- dma->page_count * sizeof(*dma->pagelist),
- (dma->page_count + (count << page_order))
- * sizeof(*dma->pagelist),
- DRM_MEM_PAGES);
- 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) {
- if (!(page = drm_alloc_pages(page_order, DRM_MEM_DMA))) break;
- entry->seglist[entry->seg_count++] = page;
- for (i = 0; i < (1 << page_order); i++) {
- DRM_DEBUG("page %d @ 0x%08lx\n",
- dma->page_count + page_count,
- page + PAGE_SIZE * i);
- dma->pagelist[dma->page_count + page_count++]
- = page + 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 *)(page + offset);
- buf->next = NULL;
- buf->waiting = 0;
- buf->pending = 0;
- buf->dma_wait = 0;
- buf->pid = 0;
-#if DRM_DMA_HISTOGRAM
- timespecclear(&buf->time_queued);
- timespecclear(&buf->time_dispatched);
- timespecclear(&buf->time_completed);
- timespecclear(&buf->time_freed);
-#endif
- DRM_DEBUG("buffer %d @ %p\n",
- entry->buf_count, buf->address);
- }
- byte_count += PAGE_SIZE << page_order;
- }
-
- dma->buflist = drm_realloc(dma->buflist,
- dma->buf_count * sizeof(*dma->buflist),
- (dma->buf_count + entry->buf_count)
- * sizeof(*dma->buflist),
- DRM_MEM_BUFS);
- for (i = dma->buf_count; i < dma->buf_count + entry->buf_count; i++)
- dma->buflist[i] = &entry->buflist[i - dma->buf_count];
-
- 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);
-
- drm_freelist_create(&entry->freelist, entry->buf_count);
- for (i = 0; i < entry->buf_count; i++) {
- drm_freelist_put(dev, &entry->freelist, &entry->buflist[i]);
- }
-
- lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc);
-
- request.count = entry->buf_count;
- request.size = size;
-
- *(drm_buf_desc_t *) data = request;
-
- atomic_dec(&dev->buf_alloc);
- return 0;
-}
-
-int drm_infobufs(dev_t kdev, u_long cmd, caddr_t data,
- int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_device_dma_t *dma = dev->dma;
- drm_buf_info_t request;
- int i;
- int count;
-
- if (!dma) return EINVAL;
-
- simple_lock(&dev->count_lock);
- if (atomic_read(&dev->buf_alloc)) {
- simple_unlock(&dev->count_lock);
- return EBUSY;
- }
- ++dev->buf_use; /* Can't allocate more after this call */
- simple_unlock(&dev->count_lock);
-
- request = *(drm_buf_info_t *) data;
-
- 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) {
- int error;
- error = copyout(&dma->bufs[i].buf_count,
- &request.list[count].count,
- sizeof(dma->bufs[0]
- .buf_count));
- if (error) return error;
- error = copyout(&dma->bufs[i].buf_size,
- &request.list[count].size,
- sizeof(dma->bufs[0].buf_size));
- if (error) return error;
- error = copyout(&dma->bufs[i]
- .freelist.low_mark,
- &request.list[count].low_mark,
- sizeof(dma->bufs[0]
- .freelist.low_mark));
- if (error) return error;
- error = copyout(&dma->bufs[i]
- .freelist.high_mark,
- &request.list[count].high_mark,
- sizeof(dma->bufs[0]
- .freelist.high_mark));
- if (error) return error;
- 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_buf_info_t *) data = request;
-
- return 0;
-}
-
-int drm_markbufs(dev_t kdev, u_long cmd, caddr_t data,
- int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_device_dma_t *dma = dev->dma;
- drm_buf_desc_t request;
- int order;
- drm_buf_entry_t *entry;
-
- if (!dma) return EINVAL;
-
- request = *(drm_buf_desc_t *) data;
-
- 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) return EINVAL;
- entry = &dma->bufs[order];
-
- if (request.low_mark < 0 || request.low_mark > entry->buf_count)
- return EINVAL;
- if (request.high_mark < 0 || request.high_mark > entry->buf_count)
- return EINVAL;
-
- entry->freelist.low_mark = request.low_mark;
- entry->freelist.high_mark = request.high_mark;
-
- return 0;
-}
-
-int drm_freebufs(dev_t kdev, u_long cmd, caddr_t data,
- int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_device_dma_t *dma = dev->dma;
- drm_buf_free_t request;
- int i;
- int idx;
- int error;
- drm_buf_t *buf;
-
- if (!dma) return EINVAL;
-
- request = *(drm_buf_free_t *) data;
-
- DRM_DEBUG("%d\n", request.count);
- for (i = 0; i < request.count; i++) {
- error = copyin(&request.list[i], &idx, sizeof(idx));
- if (error)
- return error;
- if (idx < 0 || idx >= dma->buf_count) {
- DRM_ERROR("Index %d (of %d max)\n",
- idx, dma->buf_count - 1);
- return EINVAL;
- }
- buf = dma->buflist[idx];
- if (buf->pid != p->p_pid) {
- DRM_ERROR("Process %d freeing buffer owned by %d\n",
- p->p_pid, buf->pid);
- return EINVAL;
- }
- drm_free_buffer(dev, buf);
- }
-
- return 0;
-}
-
-int drm_mapbufs(dev_t kdev, u_long cmd, caddr_t data,
- int flags, struct proc *p)
-{
- drm_device_t *dev = kdev->si_drv1;
- drm_device_dma_t *dma = dev->dma;
- int retcode = 0;
- const int zero = 0;
- vm_offset_t virtual;
- vm_offset_t address;
- drm_buf_map_t request;
- int i;
-
- if (!dma) return EINVAL;
-
- DRM_DEBUG("\n");
-
- simple_lock(&dev->count_lock);
- if (atomic_read(&dev->buf_alloc)) {
- simple_unlock(&dev->count_lock);
- return EBUSY;
- }
- ++dev->buf_use; /* Can't allocate more after this call */
- simple_unlock(&dev->count_lock);
-
- request = *(drm_buf_map_t *) data;
-
- if (request.count >= dma->buf_count) {
- virtual = 0;
- retcode = vm_mmap(&p->p_vmspace->vm_map,
- &virtual,
- round_page(dma->byte_count),
- PROT_READ|PROT_WRITE, VM_PROT_ALL,
- MAP_SHARED,
- SLIST_FIRST(&kdev->si_hlist),
- 0);
- if (retcode)
- goto done;
-
- request.virtual = (void *)virtual;
-
- for (i = 0; i < dma->buf_count; i++) {
- retcode = copyout(&dma->buflist[i]->idx,
- &request.list[i].idx,
- sizeof(request.list[0].idx));
- if (retcode) goto done;
- retcode = copyout(&dma->buflist[i]->total,
- &request.list[i].total,
- sizeof(request.list[0].total));
- if (retcode) goto done;
- retcode = copyout(&zero,
- &request.list[i].used,
- sizeof(request.list[0].used));
- if (retcode) goto done;
- address = virtual + dma->buflist[i]->offset;
- retcode = copyout(&address,
- &request.list[i].address,
- sizeof(address));
- if (retcode) goto done;
- }
- }
-done:
- request.count = dma->buf_count;
- DRM_DEBUG("%d buffers, retcode = %d\n", request.count, retcode);
-
- *(drm_buf_map_t *) data = request;
-
- return retcode;
-}
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