From 44aa4d6297874022a4f5a49ea24f2d052584d3dc Mon Sep 17 00:00:00 2001 From: David Dawes Date: Sun, 27 Jan 2002 20:05:42 +0000 Subject: First pass merge of XFree86 4.2.0 import. --- bsd/drm/bufs.c | 500 --------------------------------------------------------- 1 file changed, 500 deletions(-) delete mode 100644 bsd/drm/bufs.c (limited to 'bsd/drm/bufs.c') 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 - * - */ - -#define __NO_VERSION__ -#include "drmP.h" -#include -#include -#include -#include -#include - - /* 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; -} -- cgit v1.2.3