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authorGareth Hughes <gareth@users.sourceforge.net>2001-03-22 12:44:17 +0000
committerGareth Hughes <gareth@users.sourceforge.net>2001-03-22 12:44:17 +0000
commitdd626209d30fa999d4da8f13a0d5b7de57e34f01 (patch)
treeb74cce48910b53fb020e3974f6543ae2c7c98828
parent7918aa65505fa94aca273c31d342c3740a855311 (diff)
Hardware accelerated stencil buffers. Conformant, but broken? Disabled bymesa-3-5-20010323-freeze
default for now.
Diffstat
-rw-r--r--linux-core/drm_bufs.c829
-rw-r--r--linux-core/drm_context.c760
-rw-r--r--linux-core/drm_drv.c938
-rw-r--r--linux-core/drm_ioctl.c210
-rw-r--r--linux-core/drm_proc.c630
-rw-r--r--linux-core/drm_vm.c416
-rw-r--r--linux/drm_bufs.h829
-rw-r--r--linux/drm_context.h760
-rw-r--r--linux/drm_drv.h938
-rw-r--r--linux/drm_ioctl.h210
-rw-r--r--linux/drm_proc.h630
-rw-r--r--linux/drm_vm.h416
-rw-r--r--linux/gamma.h93
-rw-r--r--linux/i810.h112
-rw-r--r--linux/radeon_cp.c52
-rw-r--r--linux/radeon_drm.h11
-rw-r--r--linux/radeon_drv.h11
-rw-r--r--linux/radeon_state.c97
18 files changed, 7872 insertions, 70 deletions
diff --git a/linux-core/drm_bufs.c b/linux-core/drm_bufs.c
new file mode 100644
index 000000000..63cfb0d44
--- /dev/null
+++ b/linux-core/drm_bufs.c
@@ -0,0 +1,829 @@
+/* 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>
+ */
+
+#define __NO_VERSION__
+#include <linux/vmalloc.h>
+#include "drmP.h"
+
+#ifndef __HAVE_PCI_DMA
+#define __HAVE_PCI_DMA 0
+#endif
+
+#ifndef DRIVER_BUF_PRIV_T
+#define DRIVER_BUF_PRIV_T u32
+#endif
+#ifndef DRIVER_AGP_BUFFERS_MAP
+#if __HAVE_AGP && __HAVE_DMA
+#error "You must define DRIVER_AGP_BUFFERS_MAP()"
+#else
+#define DRIVER_AGP_BUFFERS_MAP( dev ) NULL
+#endif
+#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)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_map_t *map;
+ drm_map_list_t *list;
+
+ if ( !(filp->f_mode & 3) ) return -EACCES; /* Require read/write */
+
+ map = DRM(alloc)( sizeof(*map), DRM_MEM_MAPS );
+ if ( !map )
+ return -ENOMEM;
+
+ if ( copy_from_user( map, (drm_map_t *)arg, sizeof(*map) ) ) {
+ DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
+ return -EFAULT;
+ }
+
+ /* 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 -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 -EINVAL;
+ }
+ map->mtrr = -1;
+ map->handle = 0;
+
+ switch ( map->type ) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#ifndef __sparc__
+ if ( map->offset + map->size < map->offset ||
+ map->offset < virt_to_phys(high_memory) ) {
+ DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
+ return -EINVAL;
+ }
+#endif
+#if __REALLY_HAVE_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:
+ map->handle = vmalloc_32(map->size);
+ DRM_DEBUG( "%ld %d %p\n",
+ map->size, DRM(order)( map->size ), map->handle );
+ 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;
+#if __REALLY_HAVE_AGP
+ case _DRM_AGP:
+ map->offset = map->offset + dev->agp->base;
+ map->mtrr = dev->agp->agp_mtrr; /* for getmap */
+ break;
+#endif
+ default:
+ DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
+ return -EINVAL;
+ }
+
+ list = DRM(alloc)(sizeof(*list), DRM_MEM_MAPS);
+ if(!list) {
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ return -EINVAL;
+ }
+ memset(list, 0, sizeof(*list));
+ list->map = map;
+
+ down(&dev->struct_sem);
+ list_add(&list->head, &dev->maplist->head);
+ up(&dev->struct_sem);
+
+ if ( copy_to_user( (drm_map_t *)arg, map, sizeof(*map) ) )
+ return -EFAULT;
+ if ( map->type != _DRM_SHM ) {
+ if ( copy_to_user( &((drm_map_t *)arg)->handle,
+ &map->offset,
+ sizeof(map->offset) ) )
+ return -EFAULT;
+ }
+ return 0;
+}
+
+
+/* Remove a map private from list and deallocate resources if the mapping
+ * isn't in use.
+ */
+
+int DRM(rmmap)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ struct list_head *list;
+ drm_map_list_t *r_list;
+ drm_vma_entry_t *pt, *prev;
+ drm_map_t *map;
+ drm_map_t request;
+ int found_maps = 0;
+
+ if (copy_from_user(&request, (drm_map_t *)arg,
+ sizeof(request))) {
+ return -EFAULT;
+ }
+
+ down(&dev->struct_sem);
+ list = &dev->maplist->head;
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *) list;
+
+ if(r_list->map &&
+ r_list->map->handle == request.handle &&
+ r_list->map->flags & _DRM_REMOVABLE) break;
+ }
+
+ /* List has wrapped around to the head pointer, or its empty we didn't
+ * find anything.
+ */
+ if(list == (&dev->maplist->head)) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ map = r_list->map;
+ list_del(list);
+ DRM(free)(list, sizeof(*list), DRM_MEM_MAPS);
+
+ for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
+#if LINUX_VERSION_CODE >= 0x020300
+ if (pt->vma->vm_private_data == map) found_maps++;
+#else
+ if (pt->vma->vm_pte == map) found_maps++;
+#endif
+ }
+
+ if(!found_maps) {
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if __REALLY_HAVE_MTRR
+ if (map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr,
+ map->offset,
+ map->size);
+ DRM_DEBUG("mtrr_del = %d\n", retcode);
+ }
+#endif
+ DRM(ioremapfree)(map->handle, map->size);
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+ case _DRM_AGP:
+ break;
+ }
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ }
+ up(&dev->struct_sem);
+ return 0;
+}
+
+#if __HAVE_DMA
+
+#if __REALLY_HAVE_AGP
+int DRM(addbufs_agp)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ drm_buf_desc_t request;
+ 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;
+
+ if ( !dma ) return -EINVAL;
+
+ if ( copy_from_user( &request, (drm_buf_desc_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ count = request.count;
+ order = DRM(order)( request.size );
+ size = 1 << order;
+
+ alignment = (request.flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(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: %ld\n", agp_offset );
+ DRM_DEBUG( "alignment: %d\n", alignment );
+ DRM_DEBUG( "page_order: %d\n", page_order );
+ DRM_DEBUG( "total: %d\n", total );
+
+ if ( order < DRM_MIN_ORDER || order > DRM_MAX_ORDER ) return -EINVAL;
+ if ( dev->queue_count ) return -EBUSY; /* Not while in use */
+
+ spin_lock( &dev->count_lock );
+ if ( dev->buf_use ) {
+ spin_unlock( &dev->count_lock );
+ return -EBUSY;
+ }
+ atomic_inc( &dev->buf_alloc );
+ spin_unlock( &dev->count_lock );
+
+ down( &dev->struct_sem );
+ entry = &dma->bufs[order];
+ if ( entry->buf_count ) {
+ up( &dev->struct_sem );
+ 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 ) {
+ up( &dev->struct_sem );
+ atomic_dec( &dev->buf_alloc );
+ return -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->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head( &buf->dma_wait );
+ buf->pid = 0;
+
+ buf->dev_priv_size = sizeof(DRIVER_BUF_PRIV_T);
+ buf->dev_private = DRM(alloc)( sizeof(DRIVER_BUF_PRIV_T),
+ DRM_MEM_BUFS );
+ memset( buf->dev_private, 0, buf->dev_priv_size );
+
+#if __HAVE_DMA_HISTOGRAM
+ buf->time_queued = 0;
+ buf->time_dispatched = 0;
+ buf->time_completed = 0;
+ buf->time_freed = 0;
+#endif
+ 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 );
+
+ 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 = 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 );
+
+#if __HAVE_DMA_FREELIST
+ 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] );
+ }
+#endif
+ up( &dev->struct_sem );
+
+ request.count = entry->buf_count;
+ request.size = size;
+
+ if ( copy_to_user( (drm_buf_desc_t *)arg, &request, sizeof(request) ) )
+ return -EFAULT;
+
+ dma->flags = _DRM_DMA_USE_AGP;
+
+ atomic_dec( &dev->buf_alloc );
+ return 0;
+}
+#endif /* __REALLY_HAVE_AGP */
+
+#if __HAVE_PCI_DMA
+int DRM(addbufs_pci)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ 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;
+
+ if ( copy_from_user( &request, (drm_buf_desc_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ 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)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ spin_lock( &dev->count_lock );
+ if ( dev->buf_use ) {
+ spin_unlock( &dev->count_lock );
+ return -EBUSY;
+ }
+ atomic_inc( &dev->buf_alloc );
+ spin_unlock( &dev->count_lock );
+
+ down( &dev->struct_sem );
+ entry = &dma->bufs[order];
+ if ( entry->buf_count ) {
+ up( &dev->struct_sem );
+ 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 ) {
+ up( &dev->struct_sem );
+ 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 );
+ up( &dev->struct_sem );
+ 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 ) {
+ page = DRM(alloc_pages)( page_order, DRM_MEM_DMA );
+ if ( !page ) 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;
+ init_waitqueue_head( &buf->dma_wait );
+ buf->pid = 0;
+#if __HAVE_DMA_HISTOGRAM
+ buf->time_queued = 0;
+ buf->time_dispatched = 0;
+ buf->time_completed = 0;
+ buf->time_freed = 0;
+#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 = 0 ; i < entry->buf_count ; i++ ) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ 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);
+
+#if __HAVE_DMA_FREELIST
+ 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] );
+ }
+#endif
+ up( &dev->struct_sem );
+
+ request.count = entry->buf_count;
+ request.size = size;
+
+ if ( copy_to_user( (drm_buf_desc_t *)arg, &request, sizeof(request) ) )
+ return -EFAULT;
+
+ atomic_dec( &dev->buf_alloc );
+ return 0;
+}
+#endif /* __HAVE_PCI_DMA */
+
+int DRM(addbufs)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_buf_desc_t request;
+
+ if ( copy_from_user( &request, (drm_buf_desc_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+#if __REALLY_HAVE_AGP
+ if ( request.flags & _DRM_AGP_BUFFER )
+ return DRM(addbufs_agp)( inode, filp, cmd, arg );
+ else
+#endif
+#if __HAVE_PCI_DMA
+ return DRM(addbufs_pci)( inode, filp, cmd, arg );
+#else
+ return -EINVAL;
+#endif
+}
+
+int DRM(infobufs)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ drm_buf_info_t request;
+ int i;
+ int count;
+
+ if ( !dma ) return -EINVAL;
+
+ spin_lock( &dev->count_lock );
+ if ( atomic_read( &dev->buf_alloc ) ) {
+ spin_unlock( &dev->count_lock );
+ return -EBUSY;
+ }
+ ++dev->buf_use; /* Can't allocate more after this call */
+ spin_unlock( &dev->count_lock );
+
+ if ( copy_from_user( &request,
+ (drm_buf_info_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ 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 *to = &request.list[count];
+ drm_buf_entry_t *from = &dma->bufs[i];
+ drm_freelist_t *list = &dma->bufs[i].freelist;
+ if ( copy_to_user( &to->count,
+ &from->buf_count,
+ sizeof(from->buf_count) ) ||
+ copy_to_user( &to->size,
+ &from->buf_size,
+ sizeof(from->buf_size) ) ||
+ copy_to_user( &to->low_mark,
+ &list->low_mark,
+ sizeof(list->low_mark) ) ||
+ copy_to_user( &to->high_mark,
+ &list->high_mark,
+ sizeof(list->high_mark) ) )
+ return -EFAULT;
+
+ 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;
+
+ if ( copy_to_user( (drm_buf_info_t *)arg,
+ &request,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ return 0;
+}
+
+int DRM(markbufs)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ drm_buf_desc_t request;
+ int order;
+ drm_buf_entry_t *entry;
+
+ if ( !dma ) return -EINVAL;
+
+ if ( copy_from_user( &request,
+ (drm_buf_desc_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ 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)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ drm_buf_free_t request;
+ int i;
+ int idx;
+ drm_buf_t *buf;
+
+ if ( !dma ) return -EINVAL;
+
+ if ( copy_from_user( &request,
+ (drm_buf_free_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ DRM_DEBUG( "%d\n", request.count );
+ for ( i = 0 ; i < request.count ; i++ ) {
+ if ( copy_from_user( &idx,
+ &request.list[i],
+ sizeof(idx) ) )
+ return -EFAULT;
+ 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 != current->pid ) {
+ DRM_ERROR( "Process %d freeing buffer owned by %d\n",
+ current->pid, buf->pid );
+ return -EINVAL;
+ }
+ DRM(free_buffer)( dev, buf );
+ }
+
+ return 0;
+}
+
+int DRM(mapbufs)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ int retcode = 0;
+ const int zero = 0;
+ unsigned long virtual;
+ unsigned long address;
+ drm_buf_map_t request;
+ int i;
+
+ if ( !dma ) return -EINVAL;
+
+ spin_lock( &dev->count_lock );
+ if ( atomic_read( &dev->buf_alloc ) ) {
+ spin_unlock( &dev->count_lock );
+ return -EBUSY;
+ }
+ dev->buf_use++; /* Can't allocate more after this call */
+ spin_unlock( &dev->count_lock );
+
+ if ( copy_from_user( &request, (drm_buf_map_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ if ( request.count >= dma->buf_count ) {
+ if ( __HAVE_AGP && (dma->flags & _DRM_DMA_USE_AGP) ) {
+ drm_map_t *map = DRIVER_AGP_BUFFERS_MAP( dev );
+
+ if ( !map ) {
+ retcode = -EINVAL;
+ goto done;
+ }
+
+ down( &current->mm->mmap_sem );
+ virtual = do_mmap( filp, 0, map->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED,
+ (unsigned long)map->offset );
+ up( &current->mm->mmap_sem );
+ } else {
+ down( &current->mm->mmap_sem );
+ virtual = do_mmap( filp, 0, dma->byte_count,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED, 0 );
+ up( &current->mm->mmap_sem );
+ }
+ if ( virtual > -1024UL ) {
+ /* Real error */
+ retcode = (signed long)virtual;
+ goto done;
+ }
+ request.virtual = (void *)virtual;
+
+ for ( i = 0 ; i < dma->buf_count ; i++ ) {
+ if ( copy_to_user( &request.list[i].idx,
+ &dma->buflist[i]->idx,
+ sizeof(request.list[0].idx) ) ) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if ( copy_to_user( &request.list[i].total,
+ &dma->buflist[i]->total,
+ sizeof(request.list[0].total) ) ) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if ( copy_to_user( &request.list[i].used,
+ &zero,
+ sizeof(zero) ) ) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ address = virtual + dma->buflist[i]->offset; /* *** */
+ if ( 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 );
+
+ if ( copy_to_user( (drm_buf_map_t *)arg, &request, sizeof(request) ) )
+ return -EFAULT;
+
+ return retcode;
+}
+
+#endif /* __HAVE_DMA */
diff --git a/linux-core/drm_context.c b/linux-core/drm_context.c
new file mode 100644
index 000000000..4ac896ef5
--- /dev/null
+++ b/linux-core/drm_context.c
@@ -0,0 +1,760 @@
+/* drm_context.h -- IOCTLs for generic contexts -*- linux-c -*-
+ * Created: Fri Nov 24 18:31:37 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>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+#if __HAVE_CTX_BITMAP
+
+/* ================================================================
+ * Context bitmap support
+ */
+
+void DRM(ctxbitmap_free)( drm_device_t *dev, int ctx_handle )
+{
+ if ( ctx_handle < 0 ) goto failed;
+ if ( !dev->ctx_bitmap ) goto failed;
+
+ if ( ctx_handle < DRM_MAX_CTXBITMAP ) {
+ down(&dev->struct_sem);
+ clear_bit( ctx_handle, dev->ctx_bitmap );
+ dev->context_sareas[ctx_handle] = NULL;
+ up(&dev->struct_sem);
+ return;
+ }
+failed:
+ DRM_ERROR( "Attempt to free invalid context handle: %d\n",
+ ctx_handle );
+ return;
+}
+
+int DRM(ctxbitmap_next)( drm_device_t *dev )
+{
+ int bit;
+
+ if(!dev->ctx_bitmap) return -1;
+
+ down(&dev->struct_sem);
+ bit = find_first_zero_bit( dev->ctx_bitmap, DRM_MAX_CTXBITMAP );
+ if ( bit < DRM_MAX_CTXBITMAP ) {
+ set_bit( bit, dev->ctx_bitmap );
+ DRM_DEBUG( "drm_ctxbitmap_next bit : %d\n", bit );
+ if((bit+1) > dev->max_context) {
+ dev->max_context = (bit+1);
+ if(dev->context_sareas) {
+ dev->context_sareas = DRM(realloc)(
+ dev->context_sareas,
+ (dev->max_context - 1) *
+ sizeof(*dev->context_sareas),
+ dev->max_context *
+ sizeof(*dev->context_sareas),
+ DRM_MEM_MAPS);
+ dev->context_sareas[bit] = NULL;
+ } else {
+ /* max_context == 1 at this point */
+ dev->context_sareas = DRM(alloc)(
+ dev->max_context *
+ sizeof(*dev->context_sareas),
+ DRM_MEM_MAPS);
+ dev->context_sareas[bit] = NULL;
+ }
+ }
+ up(&dev->struct_sem);
+ return bit;
+ }
+ up(&dev->struct_sem);
+ return -1;
+}
+
+int DRM(ctxbitmap_init)( drm_device_t *dev )
+{
+ int i;
+ int temp;
+
+ down(&dev->struct_sem);
+ dev->ctx_bitmap = (unsigned long *) DRM(alloc)( PAGE_SIZE,
+ DRM_MEM_CTXBITMAP );
+ if ( dev->ctx_bitmap == NULL ) {
+ up(&dev->struct_sem);
+ return -ENOMEM;
+ }
+ memset( (void *)dev->ctx_bitmap, 0, PAGE_SIZE );
+ dev->context_sareas = NULL;
+ dev->max_context = -1;
+ up(&dev->struct_sem);
+
+ for ( i = 0 ; i < DRM_RESERVED_CONTEXTS ; i++ ) {
+ temp = DRM(ctxbitmap_next)( dev );
+ DRM_DEBUG( "drm_ctxbitmap_init : %d\n", temp );
+ }
+
+ return 0;
+}
+
+void DRM(ctxbitmap_cleanup)( drm_device_t *dev )
+{
+ down(&dev->struct_sem);
+ if( dev->context_sareas ) DRM(free)( dev->context_sareas,
+ sizeof(*dev->context_sareas) *
+ dev->max_context,
+ DRM_MEM_MAPS );
+ DRM(free)( (void *)dev->ctx_bitmap, PAGE_SIZE, DRM_MEM_CTXBITMAP );
+ up(&dev->struct_sem);
+}
+
+/* ================================================================
+ * Per Context SAREA Support
+ */
+
+int DRM(getsareactx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_priv_map_t request;
+ drm_map_t *map;
+
+ if (copy_from_user(&request,
+ (drm_ctx_priv_map_t *)arg,
+ sizeof(request)))
+ return -EFAULT;
+
+ down(&dev->struct_sem);
+ if ((int)request.ctx_id >= dev->max_context) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+
+ map = dev->context_sareas[request.ctx_id];
+ up(&dev->struct_sem);
+
+ request.handle = map->handle;
+ if (copy_to_user((drm_ctx_priv_map_t *)arg, &request, sizeof(request)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(setsareactx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_priv_map_t request;
+ drm_map_t *map = NULL;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+
+ if (copy_from_user(&request,
+ (drm_ctx_priv_map_t *)arg,
+ sizeof(request)))
+ return -EFAULT;
+
+ down(&dev->struct_sem);
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *)list;
+ if(r_list->map &&
+ r_list->map->handle == request.handle) break;
+ }
+ if (list == &(dev->maplist->head)) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ map = r_list->map;
+ up(&dev->struct_sem);
+
+ if (!map) return -EINVAL;
+
+ down(&dev->struct_sem);
+ if ((int)request.ctx_id >= dev->max_context) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ dev->context_sareas[request.ctx_id] = map;
+ up(&dev->struct_sem);
+ return 0;
+}
+
+/* ================================================================
+ * The actual DRM context handling routines
+ */
+
+int DRM(context_switch)( drm_device_t *dev, int old, int new )
+{
+ char buf[64];
+
+ if ( test_and_set_bit( 0, &dev->context_flag ) ) {
+ DRM_ERROR( "Reentering -- FIXME\n" );
+ return -EBUSY;
+ }
+
+#if __HAVE_DMA_HISTOGRAM
+ dev->ctx_start = get_cycles();
+#endif
+
+ DRM_DEBUG( "Context switch from %d to %d\n", old, new );
+
+ if ( new == dev->last_context ) {
+ clear_bit( 0, &dev->context_flag );
+ return 0;
+ }
+
+ if ( DRM(flags) & DRM_FLAG_NOCTX ) {
+ DRM(context_switch_complete)( dev, new );
+ } else {
+ sprintf( buf, "C %d %d\n", old, new );
+ DRM(write_string)( dev, buf );
+ }
+
+ return 0;
+}
+
+int DRM(context_switch_complete)( drm_device_t *dev, int new )
+{
+ dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
+ dev->last_switch = jiffies;
+
+ if ( !_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ) {
+ DRM_ERROR( "Lock isn't held after context switch\n" );
+ }
+
+ /* If a context switch is ever initiated
+ when the kernel holds the lock, release
+ that lock here. */
+#if __HAVE_DMA_HISTOGRAM
+ atomic_inc( &dev->histo.ctx[DRM(histogram_slot)(get_cycles()
+ - dev->ctx_start)] );
+
+#endif
+ clear_bit( 0, &dev->context_flag );
+ wake_up( &dev->context_wait );
+
+ return 0;
+}
+
+int DRM(resctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_ctx_res_t res;
+ drm_ctx_t ctx;
+ int i;
+
+ if ( copy_from_user( &res, (drm_ctx_res_t *)arg, sizeof(res) ) )
+ return -EFAULT;
+
+ if ( res.count >= DRM_RESERVED_CONTEXTS ) {
+ memset( &ctx, 0, sizeof(ctx) );
+ for ( i = 0 ; i < DRM_RESERVED_CONTEXTS ; i++ ) {
+ ctx.handle = i;
+ if ( copy_to_user( &res.contexts[i],
+ &i, sizeof(i) ) )
+ return -EFAULT;
+ }
+ }
+ res.count = DRM_RESERVED_CONTEXTS;
+
+ if ( copy_to_user( (drm_ctx_res_t *)arg, &res, sizeof(res) ) )
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(addctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ ctx.handle = DRM(ctxbitmap_next)( dev );
+ if ( ctx.handle == DRM_KERNEL_CONTEXT ) {
+ /* Skip kernel's context and get a new one. */
+ ctx.handle = DRM(ctxbitmap_next)( dev );
+ }
+ DRM_DEBUG( "%d\n", ctx.handle );
+ if ( ctx.handle == -1 ) {
+ DRM_DEBUG( "Not enough free contexts.\n" );
+ /* Should this return -EBUSY instead? */
+ return -ENOMEM;
+ }
+
+ if ( copy_to_user( (drm_ctx_t *)arg, &ctx, sizeof(ctx) ) )
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(modctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ /* This does nothing */
+ return 0;
+}
+
+int DRM(getctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t*)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ /* This is 0, because we don't handle any context flags */
+ ctx.flags = 0;
+
+ if ( copy_to_user( (drm_ctx_t*)arg, &ctx, sizeof(ctx) ) )
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(switchctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ DRM_DEBUG( "%d\n", ctx.handle );
+ return DRM(context_switch)( dev, dev->last_context, ctx.handle );
+}
+
+int DRM(newctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ DRM_DEBUG( "%d\n", ctx.handle );
+ DRM(context_switch_complete)( dev, ctx.handle );
+
+ return 0;
+}
+
+int DRM(rmctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ DRM_DEBUG( "%d\n", ctx.handle );
+ if ( ctx.handle == DRM_KERNEL_CONTEXT + 1 ) {
+ priv->remove_auth_on_close = 1;
+ }
+ if ( ctx.handle != DRM_KERNEL_CONTEXT ) {
+ DRM(ctxbitmap_free)( dev, ctx.handle );
+ }
+
+ return 0;
+}
+
+
+#else /* __HAVE_CTX_BITMAP */
+
+/* ================================================================
+ * Old-style context support
+ */
+
+
+int DRM(context_switch)(drm_device_t *dev, int old, int new)
+{
+ char buf[64];
+ drm_queue_t *q;
+
+#if 0
+ atomic_inc(&dev->total_ctx);
+#endif
+
+ if (test_and_set_bit(0, &dev->context_flag)) {
+ DRM_ERROR("Reentering -- FIXME\n");
+ return -EBUSY;
+ }
+
+#if __HAVE_DMA_HISTOGRAM
+ dev->ctx_start = get_cycles();
+#endif
+
+ DRM_DEBUG("Context switch from %d to %d\n", old, new);
+
+ if (new >= dev->queue_count) {
+ clear_bit(0, &dev->context_flag);
+ return -EINVAL;
+ }
+
+ if (new == dev->last_context) {
+ clear_bit(0, &dev->context_flag);
+ return 0;
+ }
+
+ q = dev->queuelist[new];
+ atomic_inc(&q->use_count);
+ if (atomic_read(&q->use_count) == 1) {
+ atomic_dec(&q->use_count);
+ clear_bit(0, &dev->context_flag);
+ return -EINVAL;
+ }
+
+ if (DRM(flags) & DRM_FLAG_NOCTX) {
+ DRM(context_switch_complete)(dev, new);
+ } else {
+ sprintf(buf, "C %d %d\n", old, new);
+ DRM(write_string)(dev, buf);
+ }
+
+ atomic_dec(&q->use_count);
+
+ return 0;
+}
+
+int DRM(context_switch_complete)(drm_device_t *dev, int new)
+{
+ drm_device_dma_t *dma = dev->dma;
+
+ dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
+ dev->last_switch = jiffies;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("Lock isn't held after context switch\n");
+ }
+
+ if (!dma || !(dma->next_buffer && dma->next_buffer->while_locked)) {
+ if (DRM(lock_free)(dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT)) {
+ DRM_ERROR("Cannot free lock\n");
+ }
+ }
+
+#if __HAVE_DMA_HISTOGRAM
+ atomic_inc(&dev->histo.ctx[DRM(histogram_slot)(get_cycles()
+ - dev->ctx_start)]);
+
+#endif
+ clear_bit(0, &dev->context_flag);
+ wake_up_interruptible(&dev->context_wait);
+
+ return 0;
+}
+
+static int DRM(init_queue)(drm_device_t *dev, drm_queue_t *q, drm_ctx_t *ctx)
+{
+ DRM_DEBUG("\n");
+
+ if (atomic_read(&q->use_count) != 1
+ || atomic_read(&q->finalization)
+ || atomic_read(&q->block_count)) {
+ DRM_ERROR("New queue is already in use: u%d f%d b%d\n",
+ atomic_read(&q->use_count),
+ atomic_read(&q->finalization),
+ atomic_read(&q->block_count));
+ }
+
+ atomic_set(&q->finalization, 0);
+ atomic_set(&q->block_count, 0);
+ atomic_set(&q->block_read, 0);
+ atomic_set(&q->block_write, 0);
+ atomic_set(&q->total_queued, 0);
+ atomic_set(&q->total_flushed, 0);
+ atomic_set(&q->total_locks, 0);
+
+ init_waitqueue_head(&q->write_queue);
+ init_waitqueue_head(&q->read_queue);
+ init_waitqueue_head(&q->flush_queue);
+
+ q->flags = ctx->flags;
+
+ DRM(waitlist_create)(&q->waitlist, dev->dma->buf_count);
+
+ return 0;
+}
+
+
+/* drm_alloc_queue:
+PRE: 1) dev->queuelist[0..dev->queue_count] is allocated and will not
+ disappear (so all deallocation must be done after IOCTLs are off)
+ 2) dev->queue_count < dev->queue_slots
+ 3) dev->queuelist[i].use_count == 0 and
+ dev->queuelist[i].finalization == 0 if i not in use
+POST: 1) dev->queuelist[i].use_count == 1
+ 2) dev->queue_count < dev->queue_slots */
+
+static int DRM(alloc_queue)(drm_device_t *dev)
+{
+ int i;
+ drm_queue_t *queue;
+ int oldslots;
+ int newslots;
+ /* Check for a free queue */
+ for (i = 0; i < dev->queue_count; i++) {
+ atomic_inc(&dev->queuelist[i]->use_count);
+ if (atomic_read(&dev->queuelist[i]->use_count) == 1
+ && !atomic_read(&dev->queuelist[i]->finalization)) {
+ DRM_DEBUG("%d (free)\n", i);
+ return i;
+ }
+ atomic_dec(&dev->queuelist[i]->use_count);
+ }
+ /* Allocate a new queue */
+ down(&dev->struct_sem);
+
+ queue = gamma_alloc(sizeof(*queue), DRM_MEM_QUEUES);
+ memset(queue, 0, sizeof(*queue));
+ atomic_set(&queue->use_count, 1);
+
+ ++dev->queue_count;
+ if (dev->queue_count >= dev->queue_slots) {
+ oldslots = dev->queue_slots * sizeof(*dev->queuelist);
+ if (!dev->queue_slots) dev->queue_slots = 1;
+ dev->queue_slots *= 2;
+ newslots = dev->queue_slots * sizeof(*dev->queuelist);
+
+ dev->queuelist = DRM(realloc)(dev->queuelist,
+ oldslots,
+ newslots,
+ DRM_MEM_QUEUES);
+ if (!dev->queuelist) {
+ up(&dev->struct_sem);
+ DRM_DEBUG("out of memory\n");
+ return -ENOMEM;
+ }
+ }
+ dev->queuelist[dev->queue_count-1] = queue;
+
+ up(&dev->struct_sem);
+ DRM_DEBUG("%d (new)\n", dev->queue_count - 1);
+ return dev->queue_count - 1;
+}
+
+int DRM(resctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_ctx_res_t res;
+ drm_ctx_t ctx;
+ int i;
+
+ DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
+ if (copy_from_user(&res, (drm_ctx_res_t *)arg, sizeof(res)))
+ return -EFAULT;
+ if (res.count >= DRM_RESERVED_CONTEXTS) {
+ memset(&ctx, 0, sizeof(ctx));
+ for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+ ctx.handle = i;
+ if (copy_to_user(&res.contexts[i],
+ &i,
+ sizeof(i)))
+ return -EFAULT;
+ }
+ }
+ res.count = DRM_RESERVED_CONTEXTS;
+ if (copy_to_user((drm_ctx_res_t *)arg, &res, sizeof(res)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(addctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+ if ((ctx.handle = DRM(alloc_queue)(dev)) == DRM_KERNEL_CONTEXT) {
+ /* Init kernel's context and get a new one. */
+ DRM(init_queue)(dev, dev->queuelist[ctx.handle], &ctx);
+ ctx.handle = DRM(alloc_queue)(dev);
+ }
+ DRM(init_queue)(dev, dev->queuelist[ctx.handle], &ctx);
+ DRM_DEBUG("%d\n", ctx.handle);
+ if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(modctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+ drm_queue_t *q;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+
+ DRM_DEBUG("%d\n", ctx.handle);
+
+ if (ctx.handle < 0 || ctx.handle >= dev->queue_count) return -EINVAL;
+ q = dev->queuelist[ctx.handle];
+
+ atomic_inc(&q->use_count);
+ if (atomic_read(&q->use_count) == 1) {
+ /* No longer in use */
+ atomic_dec(&q->use_count);
+ return -EINVAL;
+ }
+
+ if (DRM_BUFCOUNT(&q->waitlist)) {
+ atomic_dec(&q->use_count);
+ return -EBUSY;
+ }
+
+ q->flags = ctx.flags;
+
+ atomic_dec(&q->use_count);
+ return 0;
+}
+
+int DRM(getctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+ drm_queue_t *q;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+
+ DRM_DEBUG("%d\n", ctx.handle);
+
+ if (ctx.handle >= dev->queue_count) return -EINVAL;
+ q = dev->queuelist[ctx.handle];
+
+ atomic_inc(&q->use_count);
+ if (atomic_read(&q->use_count) == 1) {
+ /* No longer in use */
+ atomic_dec(&q->use_count);
+ return -EINVAL;
+ }
+
+ ctx.flags = q->flags;
+ atomic_dec(&q->use_count);
+
+ if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
+ return -EFAULT;
+
+ return 0;
+}
+
+int DRM(switchctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+ DRM_DEBUG("%d\n", ctx.handle);
+ return DRM(context_switch)(dev, dev->last_context, ctx.handle);
+}
+
+int DRM(newctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+ DRM_DEBUG("%d\n", ctx.handle);
+ DRM(context_switch_complete)(dev, ctx.handle);
+
+ return 0;
+}
+
+int DRM(rmctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+ drm_queue_t *q;
+ drm_buf_t *buf;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+ DRM_DEBUG("%d\n", ctx.handle);
+
+ if (ctx.handle >= dev->queue_count) return -EINVAL;
+ q = dev->queuelist[ctx.handle];
+
+ atomic_inc(&q->use_count);
+ if (atomic_read(&q->use_count) == 1) {
+ /* No longer in use */
+ atomic_dec(&q->use_count);
+ return -EINVAL;
+ }
+
+ atomic_inc(&q->finalization); /* Mark queue in finalization state */
+ atomic_sub(2, &q->use_count); /* Mark queue as unused (pending
+ finalization) */
+
+ while (test_and_set_bit(0, &dev->interrupt_flag)) {
+ schedule();
+ if (signal_pending(current)) {
+ clear_bit(0, &dev->interrupt_flag);
+ return -EINTR;
+ }
+ }
+ /* Remove queued buffers */
+ while ((buf = DRM(waitlist_get)(&q->waitlist))) {
+ DRM(free_buffer)(dev, buf);
+ }
+ clear_bit(0, &dev->interrupt_flag);
+
+ /* Wakeup blocked processes */
+ wake_up_interruptible(&q->read_queue);
+ wake_up_interruptible(&q->write_queue);
+ wake_up_interruptible(&q->flush_queue);
+
+ /* Finalization over. Queue is made
+ available when both use_count and
+ finalization become 0, which won't
+ happen until all the waiting processes
+ stop waiting. */
+ atomic_dec(&q->finalization);
+ return 0;
+}
+
+#endif /* __HAVE_CTX_BITMAP */
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
new file mode 100644
index 000000000..7447ca6d4
--- /dev/null
+++ b/linux-core/drm_drv.c
@@ -0,0 +1,938 @@
+/* drm_drv.h -- Generic driver 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>
+ */
+
+/*
+ * To use this template, you must at least define the following (samples
+ * given for the MGA driver):
+ *
+ * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
+ *
+ * #define DRIVER_NAME "mga"
+ * #define DRIVER_DESC "Matrox G200/G400"
+ * #define DRIVER_DATE "20001127"
+ *
+ * #define DRIVER_MAJOR 2
+ * #define DRIVER_MINOR 0
+ * #define DRIVER_PATCHLEVEL 2
+ *
+ * #define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( mga_ioctls )
+ *
+ * #define DRM(x) mga_##x
+ */
+
+#ifndef __MUST_HAVE_AGP
+#define __MUST_HAVE_AGP 0
+#endif
+#ifndef __HAVE_CTX_BITMAP
+#define __HAVE_CTX_BITMAP 0
+#endif
+#ifndef __HAVE_DMA_IRQ
+#define __HAVE_DMA_IRQ 0
+#endif
+#ifndef __HAVE_DMA_QUEUE
+#define __HAVE_DMA_QUEUE 0
+#endif
+#ifndef __HAVE_MULTIPLE_DMA_QUEUES
+#define __HAVE_MULTIPLE_DMA_QUEUES 0
+#endif
+#ifndef __HAVE_DMA_SCHEDULE
+#define __HAVE_DMA_SCHEDULE 0
+#endif
+#ifndef __HAVE_DMA_FLUSH
+#define __HAVE_DMA_FLUSH 0
+#endif
+#ifndef __HAVE_DMA_READY
+#define __HAVE_DMA_READY 0
+#endif
+#ifndef __HAVE_DMA_QUIESCENT
+#define __HAVE_DMA_QUIESCENT 0
+#endif
+#ifndef __HAVE_RELEASE
+#define __HAVE_RELEASE 0
+#endif
+#ifndef __HAVE_COUNTERS
+#define __HAVE_COUNTERS 0
+#endif
+
+#ifndef DRIVER_PREINIT
+#define DRIVER_PREINIT()
+#endif
+#ifndef DRIVER_POSTINIT
+#define DRIVER_POSTINIT()
+#endif
+#ifndef DRIVER_PRERELEASE
+#define DRIVER_PRERELEASE()
+#endif
+#ifndef DRIVER_PRETAKEDOWN
+#define DRIVER_PRETAKEDOWN()
+#endif
+#ifndef DRIVER_IOCTLS
+#define DRIVER_IOCTLS
+#endif
+
+
+static drm_device_t DRM(device);
+static int DRM(minor);
+
+static struct file_operations DRM(fops) = {
+#if LINUX_VERSION_CODE >= 0x020400
+ /* This started being used during 2.4.0-test */
+ owner: THIS_MODULE,
+#endif
+ open: DRM(open),
+ flush: DRM(flush),
+ release: DRM(release),
+ ioctl: DRM(ioctl),
+ mmap: DRM(mmap),
+ read: DRM(read),
+ fasync: DRM(fasync),
+ poll: DRM(poll),
+};
+
+
+static drm_ioctl_desc_t DRM(ioctls)[] = {
+ [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { DRM(version), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { DRM(getunique), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { DRM(getmagic), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_busid), 0, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { DRM(getmap), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { DRM(getclient), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { DRM(getstats), 0, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { DRM(setunique), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { DRM(block), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { DRM(unblock), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { DRM(authmagic), 1, 1 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { DRM(addmap), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { DRM(rmmap), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { DRM(addctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { DRM(rmctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { DRM(modctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { DRM(getctx), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { DRM(switchctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { DRM(newctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { DRM(resctx), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { DRM(adddraw), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { DRM(rmdraw), 1, 1 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { DRM(lock), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { DRM(unlock), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { DRM(finish), 1, 0 },
+
+#if __HAVE_DMA
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { DRM(addbufs), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { DRM(markbufs), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { DRM(infobufs), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { DRM(mapbufs), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { DRM(freebufs), 1, 0 },
+
+ /* The DRM_IOCTL_DMA ioctl should be defined by the driver.
+ */
+#if __HAVE_DMA_IRQ
+ [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { DRM(control), 1, 1 },
+#endif
+#endif
+
+#if __REALLY_HAVE_AGP
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { DRM(agp_acquire), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { DRM(agp_release), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { DRM(agp_enable), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { DRM(agp_info), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { DRM(agp_alloc), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { DRM(agp_free), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { DRM(agp_bind), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { DRM(agp_unbind), 1, 1 },
+#endif
+
+ DRIVER_IOCTLS
+};
+
+#define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( DRM(ioctls) )
+
+#ifdef MODULE
+static char *drm_opts = NULL;
+#endif
+
+MODULE_AUTHOR( DRIVER_AUTHOR );
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_PARM( drm_opts, "s" );
+
+#ifndef MODULE
+/* DRM(options) is called by the kernel to parse command-line options
+ * passed via the boot-loader (e.g., LILO). It calls the insmod option
+ * routine, drm_parse_drm.
+ */
+
+static int __init DRM(options)( char *str )
+{
+ DRM(parse_options)( str );
+ return 1;
+}
+
+__setup( DRIVER_NAME "=", DRM(options) );
+#endif
+
+static int DRM(setup)( drm_device_t *dev )
+{
+ int i;
+
+ atomic_set( &dev->ioctl_count, 0 );
+ atomic_set( &dev->vma_count, 0 );
+ dev->buf_use = 0;
+ atomic_set( &dev->buf_alloc, 0 );
+
+#if __HAVE_DMA
+ i = DRM(dma_setup)( dev );
+ if ( i < 0 )
+ return i;
+#endif
+
+ dev->counters = 6 + __HAVE_COUNTERS;
+ dev->types[0] = _DRM_STAT_LOCK;
+ dev->types[1] = _DRM_STAT_OPENS;
+ dev->types[2] = _DRM_STAT_CLOSES;
+ dev->types[3] = _DRM_STAT_IOCTLS;
+ dev->types[4] = _DRM_STAT_LOCKS;
+ dev->types[5] = _DRM_STAT_UNLOCKS;
+#ifdef __HAVE_COUNTER6
+ dev->types[6] = __HAVE_COUNTER6;
+#endif
+#ifdef __HAVE_COUNTER7
+ dev->types[7] = __HAVE_COUNTER7;
+#endif
+#ifdef __HAVE_COUNTER8
+ dev->types[8] = __HAVE_COUNTER8;
+#endif
+#ifdef __HAVE_COUNTER9
+ dev->types[9] = __HAVE_COUNTER9;
+#endif
+#ifdef __HAVE_COUNTER10
+ dev->types[10] = __HAVE_COUNTER10;
+#endif
+#ifdef __HAVE_COUNTER11
+ dev->types[11] = __HAVE_COUNTER11;
+#endif
+#ifdef __HAVE_COUNTER12
+ dev->types[12] = __HAVE_COUNTER12;
+#endif
+#ifdef __HAVE_COUNTER13
+ dev->types[13] = __HAVE_COUNTER13;
+#endif
+#ifdef __HAVE_COUNTER14
+ dev->types[14] = __HAVE_COUNTER14;
+#endif
+#ifdef __HAVE_COUNTER15
+ dev->types[14] = __HAVE_COUNTER14;
+#endif
+
+ for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ )
+ atomic_set( &dev->counts[i], 0 );
+
+ for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
+ dev->magiclist[i].head = NULL;
+ dev->magiclist[i].tail = NULL;
+ }
+
+ dev->maplist = DRM(alloc)(sizeof(*dev->maplist),
+ DRM_MEM_MAPS);
+ if(dev->maplist == NULL) return -ENOMEM;
+ memset(dev->maplist, 0, sizeof(*dev->maplist));
+ INIT_LIST_HEAD(&dev->maplist->head);
+ dev->map_count = 0;
+
+ dev->vmalist = NULL;
+ dev->lock.hw_lock = NULL;
+ init_waitqueue_head( &dev->lock.lock_queue );
+ dev->queue_count = 0;
+ dev->queue_reserved = 0;
+ dev->queue_slots = 0;
+ dev->queuelist = NULL;
+ dev->irq = 0;
+ dev->context_flag = 0;
+ dev->interrupt_flag = 0;
+ dev->dma_flag = 0;
+ dev->last_context = 0;
+ dev->last_switch = 0;
+ dev->last_checked = 0;
+ init_timer( &dev->timer );
+ init_waitqueue_head( &dev->context_wait );
+
+ dev->ctx_start = 0;
+ dev->lck_start = 0;
+
+ dev->buf_rp = dev->buf;
+ dev->buf_wp = dev->buf;
+ dev->buf_end = dev->buf + DRM_BSZ;
+ dev->buf_async = NULL;
+ init_waitqueue_head( &dev->buf_readers );
+ init_waitqueue_head( &dev->buf_writers );
+
+ DRM_DEBUG( "\n" );
+
+ /* The kernel's context could be created here, but is now created
+ * in drm_dma_enqueue. This is more resource-efficient for
+ * hardware that does not do DMA, but may mean that
+ * drm_select_queue fails between the time the interrupt is
+ * initialized and the time the queues are initialized.
+ */
+ return 0;
+}
+
+
+static int DRM(takedown)( drm_device_t *dev )
+{
+ drm_magic_entry_t *pt, *next;
+ drm_map_t *map;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+ drm_vma_entry_t *vma, *vma_next;
+ int i;
+
+ DRM_DEBUG( "\n" );
+
+ DRIVER_PRETAKEDOWN();
+#if __HAVE_DMA_IRQ
+ if ( dev->irq ) DRM(irq_uninstall)( dev );
+#endif
+
+ down( &dev->struct_sem );
+ del_timer( &dev->timer );
+
+ if ( dev->devname ) {
+ DRM(free)( dev->devname, strlen( dev->devname ) + 1,
+ DRM_MEM_DRIVER );
+ dev->devname = NULL;
+ }
+
+ if ( dev->unique ) {
+ DRM(free)( dev->unique, strlen( dev->unique ) + 1,
+ DRM_MEM_DRIVER );
+ dev->unique = NULL;
+ dev->unique_len = 0;
+ }
+ /* Clear pid list */
+ for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
+ for ( pt = dev->magiclist[i].head ; pt ; pt = next ) {
+ next = pt->next;
+ DRM(free)( pt, sizeof(*pt), DRM_MEM_MAGIC );
+ }
+ dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
+ }
+
+#if __REALLY_HAVE_AGP
+ /* Clear AGP information */
+ if ( dev->agp ) {
+ drm_agp_mem_t *entry;
+ drm_agp_mem_t *nexte;
+
+ /* Remove AGP resources, but leave dev->agp
+ intact until drv_cleanup is called. */
+ for ( entry = dev->agp->memory ; entry ; entry = nexte ) {
+ nexte = entry->next;
+ if ( entry->bound ) DRM(unbind_agp)( entry->memory );
+ DRM(free_agp)( entry->memory, entry->pages );
+ DRM(free)( entry, sizeof(*entry), DRM_MEM_AGPLISTS );
+ }
+ dev->agp->memory = NULL;
+
+ if ( dev->agp->acquired ) DRM(agp_do_release)();
+
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
+ }
+#endif
+
+ /* Clear vma list (only built for debugging) */
+ if ( dev->vmalist ) {
+ for ( vma = dev->vmalist ; vma ; vma = vma_next ) {
+ vma_next = vma->next;
+ DRM(free)( vma, sizeof(*vma), DRM_MEM_VMAS );
+ }
+ dev->vmalist = NULL;
+ }
+
+ if( dev->maplist ) {
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *)list;
+ map = r_list->map;
+ DRM(free)(r_list, sizeof(*r_list), DRM_MEM_MAPS);
+ if(!map) continue;
+
+ switch ( map->type ) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if __REALLY_HAVE_MTRR
+ if ( map->mtrr >= 0 ) {
+ int retcode;
+ retcode = mtrr_del( map->mtrr,
+ map->offset,
+ map->size );
+ DRM_DEBUG( "mtrr_del=%d\n", retcode );
+ }
+#endif
+ DRM(ioremapfree)( map->handle, map->size );
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+
+ case _DRM_AGP:
+ /* Do nothing here, because this is all
+ * handled in the AGP/GART driver.
+ */
+ break;
+ }
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ }
+ DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
+ dev->maplist = NULL;
+ }
+
+#if __HAVE_DMA_QUEUE || __HAVE_MULTIPLE_DMA_QUEUES
+ if ( dev->queuelist ) {
+ for ( i = 0 ; i < dev->queue_count ; i++ ) {
+ DRM(waitlist_destroy)( &dev->queuelist[i]->waitlist );
+ if ( dev->queuelist[i] ) {
+ DRM(free)( dev->queuelist[i],
+ sizeof(*dev->queuelist[0]),
+ DRM_MEM_QUEUES );
+ dev->queuelist[i] = NULL;
+ }
+ }
+ DRM(free)( dev->queuelist,
+ dev->queue_slots * sizeof(*dev->queuelist),
+ DRM_MEM_QUEUES );
+ dev->queuelist = NULL;
+ }
+ dev->queue_count = 0;
+#endif
+
+#if __HAVE_DMA
+ DRM(dma_takedown)( dev );
+#endif
+ if ( dev->lock.hw_lock ) {
+ dev->lock.hw_lock = NULL; /* SHM removed */
+ dev->lock.pid = 0;
+ wake_up_interruptible( &dev->lock.lock_queue );
+ }
+ up( &dev->struct_sem );
+
+ return 0;
+}
+
+/* drm_init is called via init_module at module load time, or via
+ * linux/init/main.c (this is not currently supported).
+ */
+static int __init drm_init( void )
+{
+ drm_device_t *dev = &DRM(device);
+#if __HAVE_CTX_BITMAP
+ int retcode;
+#endif
+ DRM_DEBUG( "\n" );
+
+ memset( (void *)dev, 0, sizeof(*dev) );
+ dev->count_lock = SPIN_LOCK_UNLOCKED;
+ sema_init( &dev->struct_sem, 1 );
+
+#ifdef MODULE
+ DRM(parse_options)( drm_opts );
+#endif
+ DRIVER_PREINIT();
+
+ DRM(mem_init)();
+
+ if ((DRM(minor) = DRM(stub_register)(DRIVER_NAME, &DRM(fops),dev)) < 0)
+ return -EPERM;
+ dev->device = MKDEV(DRM_MAJOR, DRM(minor) );
+ dev->name = DRIVER_NAME;
+
+#if __REALLY_HAVE_AGP
+ dev->agp = DRM(agp_init)();
+#if __MUST_HAVE_AGP
+ if ( dev->agp == NULL ) {
+ DRM_ERROR( "Cannot initialize the agpgart module.\n" );
+ DRM(stub_unregister)(DRM(minor));
+ DRM(takedown)( dev );
+ return -ENOMEM;
+ }
+#endif
+#if __REALLY_HAVE_MTRR
+ if (dev->agp)
+ dev->agp->agp_mtrr = mtrr_add( dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size*1024*1024,
+ MTRR_TYPE_WRCOMB,
+ 1 );
+#endif
+#endif
+
+#if __HAVE_CTX_BITMAP
+ retcode = DRM(ctxbitmap_init)( dev );
+ if( retcode ) {
+ DRM_ERROR( "Cannot allocate memory for context bitmap.\n" );
+ DRM(stub_unregister)(DRM(minor));
+ DRM(takedown)( dev );
+ return retcode;
+ }
+#endif
+
+ DRIVER_POSTINIT();
+
+ DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d\n",
+ DRIVER_NAME,
+ DRIVER_MAJOR,
+ DRIVER_MINOR,
+ DRIVER_PATCHLEVEL,
+ DRIVER_DATE,
+ DRM(minor) );
+
+ return 0;
+}
+
+/* drm_cleanup is called via cleanup_module at module unload time.
+ */
+static void __exit drm_cleanup( void )
+{
+ drm_device_t *dev = &DRM(device);
+
+ DRM_DEBUG( "\n" );
+
+ if ( DRM(stub_unregister)(DRM(minor)) ) {
+ DRM_ERROR( "Cannot unload module\n" );
+ } else {
+ DRM_INFO( "Module unloaded\n" );
+ }
+#if __HAVE_CTX_BITMAP
+ DRM(ctxbitmap_cleanup)( dev );
+#endif
+
+#if __REALLY_HAVE_AGP && __REALLY_HAVE_MTRR
+ if ( dev->agp && dev->agp->agp_mtrr ) {
+ int retval;
+ retval = mtrr_del( dev->agp->agp_mtrr,
+ dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size*1024*1024 );
+ DRM_DEBUG( "mtrr_del=%d\n", retval );
+ }
+#endif
+
+ DRM(takedown)( dev );
+
+#if __REALLY_HAVE_AGP
+ if ( dev->agp ) {
+ DRM(agp_uninit)();
+ DRM(free)( dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS );
+ dev->agp = NULL;
+ }
+#endif
+}
+
+module_init( drm_init );
+module_exit( drm_cleanup );
+
+
+int DRM(version)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_version_t version;
+ int len;
+
+ if ( copy_from_user( &version,
+ (drm_version_t *)arg,
+ sizeof(version) ) )
+ return -EFAULT;
+
+#define DRM_COPY( name, value ) \
+ len = strlen( value ); \
+ if ( len > name##_len ) len = name##_len; \
+ name##_len = strlen( value ); \
+ if ( len && name ) { \
+ if ( copy_to_user( name, value, len ) ) \
+ return -EFAULT; \
+ }
+
+ version.version_major = DRIVER_MAJOR;
+ version.version_minor = DRIVER_MINOR;
+ version.version_patchlevel = DRIVER_PATCHLEVEL;
+
+ DRM_COPY( version.name, DRIVER_NAME );
+ DRM_COPY( version.date, DRIVER_DATE );
+ DRM_COPY( version.desc, DRIVER_DESC );
+
+ if ( copy_to_user( (drm_version_t *)arg,
+ &version,
+ sizeof(version) ) )
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(open)( struct inode *inode, struct file *filp )
+{
+ drm_device_t *dev = &DRM(device);
+ int retcode = 0;
+
+ DRM_DEBUG( "open_count = %d\n", dev->open_count );
+
+ retcode = DRM(open_helper)( inode, filp, dev );
+ if ( !retcode ) {
+#if LINUX_VERSION_CODE < 0x020333
+ MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+ atomic_inc( &dev->counts[_DRM_STAT_OPENS] );
+ spin_lock( &dev->count_lock );
+ if ( !dev->open_count++ ) {
+ spin_unlock( &dev->count_lock );
+ return DRM(setup)( dev );
+ }
+ spin_unlock( &dev->count_lock );
+ }
+
+ return retcode;
+}
+
+int DRM(release)( struct inode *inode, struct file *filp )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev;
+ int retcode = 0;
+
+ lock_kernel();
+ dev = priv->dev;
+
+ DRM_DEBUG( "open_count = %d\n", dev->open_count );
+
+ DRIVER_PRERELEASE();
+
+ /* ========================================================
+ * Begin inline drm_release
+ */
+
+ DRM_DEBUG( "pid = %d, device = 0x%x, open_count = %d\n",
+ current->pid, dev->device, dev->open_count );
+
+ if ( dev->lock.hw_lock &&
+ _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) &&
+ dev->lock.pid == current->pid ) {
+ DRM_DEBUG( "Process %d dead, freeing lock for context %d\n",
+ current->pid,
+ _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) );
+#if __HAVE_RELEASE
+ DRIVER_RELEASE();
+#endif
+ DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) );
+
+ /* FIXME: may require heavy-handed reset of
+ hardware at this point, possibly
+ processed via a callback to the X
+ server. */
+ }
+#if __HAVE_RELEASE
+ else if ( dev->lock.hw_lock ) {
+ /* The lock is required to reclaim buffers */
+ DECLARE_WAITQUEUE( entry, current );
+ add_wait_queue( &dev->lock.lock_queue, &entry );
+ for (;;) {
+ current->state = TASK_INTERRUPTIBLE;
+ if ( !dev->lock.hw_lock ) {
+ /* Device has been unregistered */
+ retcode = -EINTR;
+ break;
+ }
+ if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT ) ) {
+ dev->lock.pid = priv->pid;
+ dev->lock.lock_time = jiffies;
+ atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
+ break; /* Got lock */
+ }
+ /* Contention */
+#if 0
+ atomic_inc( &dev->total_sleeps );
+#endif
+ schedule();
+ if ( signal_pending( current ) ) {
+ retcode = -ERESTARTSYS;
+ break;
+ }
+ }
+ current->state = TASK_RUNNING;
+ remove_wait_queue( &dev->lock.lock_queue, &entry );
+ if( !retcode ) {
+ DRIVER_RELEASE();
+ DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT );
+ }
+ }
+#elif __HAVE_DMA
+ DRM(reclaim_buffers)( dev, priv->pid );
+#endif
+
+ DRM(fasync)( -1, filp, 0 );
+
+ down( &dev->struct_sem );
+ if ( priv->remove_auth_on_close == 1 ) {
+ drm_file_t *temp = dev->file_first;
+ while ( temp ) {
+ temp->authenticated = 0;
+ temp = temp->next;
+ }
+ }
+ if ( priv->prev ) {
+ priv->prev->next = priv->next;
+ } else {
+ dev->file_first = priv->next;
+ }
+ if ( priv->next ) {
+ priv->next->prev = priv->prev;
+ } else {
+ dev->file_last = priv->prev;
+ }
+ up( &dev->struct_sem );
+
+ DRM(free)( priv, sizeof(*priv), DRM_MEM_FILES );
+
+ /* ========================================================
+ * End inline drm_release
+ */
+
+#if LINUX_VERSION_CODE < 0x020333
+ MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+ atomic_inc( &dev->counts[_DRM_STAT_CLOSES] );
+ spin_lock( &dev->count_lock );
+ if ( !--dev->open_count ) {
+ if ( atomic_read( &dev->ioctl_count ) || dev->blocked ) {
+ DRM_ERROR( "Device busy: %d %d\n",
+ atomic_read( &dev->ioctl_count ),
+ dev->blocked );
+ spin_unlock( &dev->count_lock );
+ unlock_kernel();
+ return -EBUSY;
+ }
+ spin_unlock( &dev->count_lock );
+ unlock_kernel();
+ return DRM(takedown)( dev );
+ }
+ spin_unlock( &dev->count_lock );
+
+ unlock_kernel();
+ return retcode;
+}
+
+/* DRM(ioctl) is called whenever a process performs an ioctl on /dev/drm.
+ */
+int DRM(ioctl)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ioctl_desc_t *ioctl;
+ drm_ioctl_t *func;
+ int nr = DRM_IOCTL_NR(cmd);
+ int retcode = 0;
+
+ atomic_inc( &dev->ioctl_count );
+ atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] );
+ ++priv->ioctl_count;
+
+ DRM_DEBUG( "pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%x, auth=%d\n",
+ current->pid, cmd, nr, dev->device, priv->authenticated );
+
+ if ( nr >= DRIVER_IOCTL_COUNT ) {
+ retcode = -EINVAL;
+ } else {
+ ioctl = &DRM(ioctls)[nr];
+ func = ioctl->func;
+
+ if ( !func ) {
+ DRM_DEBUG( "no function\n" );
+ retcode = -EINVAL;
+ } else if ( ( ioctl->root_only && !capable( CAP_SYS_ADMIN ) )||
+ ( ioctl->auth_needed && !priv->authenticated ) ) {
+ retcode = -EACCES;
+ } else {
+ retcode = func( inode, filp, cmd, arg );
+ }
+ }
+
+ atomic_dec( &dev->ioctl_count );
+ return retcode;
+}
+
+int DRM(lock)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ DECLARE_WAITQUEUE( entry, current );
+ drm_lock_t lock;
+ int ret = 0;
+#if __HAVE_MULTIPLE_DMA_QUEUES
+ drm_queue_t *q;
+#endif
+#if __HAVE_DMA_HISTOGRAM
+ cycles_t start;
+
+ dev->lck_start = start = get_cycles();
+#endif
+
+ if ( copy_from_user( &lock, (drm_lock_t *)arg, sizeof(lock) ) )
+ return -EFAULT;
+
+ if ( lock.context == DRM_KERNEL_CONTEXT ) {
+ DRM_ERROR( "Process %d using kernel context %d\n",
+ current->pid, lock.context );
+ return -EINVAL;
+ }
+
+ DRM_DEBUG( "%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
+ lock.context, current->pid,
+ dev->lock.hw_lock->lock, lock.flags );
+
+#if __HAVE_DMA_QUEUE
+ if ( lock.context < 0 )
+ return -EINVAL;
+#elif __HAVE_MULTIPLE_DMA_QUEUES
+ if ( lock.context < 0 || lock.context >= dev->queue_count )
+ return -EINVAL;
+ q = dev->queuelist[lock.context];
+#endif
+
+#if __HAVE_DMA_FLUSH
+ ret = DRM(flush_block_and_flush)( dev, lock.context, lock.flags );
+#endif
+ if ( !ret ) {
+ add_wait_queue( &dev->lock.lock_queue, &entry );
+ for (;;) {
+ current->state = TASK_INTERRUPTIBLE;
+ if ( !dev->lock.hw_lock ) {
+ /* Device has been unregistered */
+ ret = -EINTR;
+ break;
+ }
+ if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
+ lock.context ) ) {
+ dev->lock.pid = current->pid;
+ dev->lock.lock_time = jiffies;
+ atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
+ break; /* Got lock */
+ }
+
+ /* Contention */
+ schedule();
+ if ( signal_pending( current ) ) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+ }
+ current->state = TASK_RUNNING;
+ remove_wait_queue( &dev->lock.lock_queue, &entry );
+ }
+
+#if __HAVE_DMA_FLUSH
+ DRM(flush_unblock)( dev, lock.context, lock.flags ); /* cleanup phase */
+#endif
+
+ if ( !ret ) {
+ sigemptyset( &dev->sigmask );
+ sigaddset( &dev->sigmask, SIGSTOP );
+ sigaddset( &dev->sigmask, SIGTSTP );
+ sigaddset( &dev->sigmask, SIGTTIN );
+ sigaddset( &dev->sigmask, SIGTTOU );
+ dev->sigdata.context = lock.context;
+ dev->sigdata.lock = dev->lock.hw_lock;
+ block_all_signals( DRM(notifier),
+ &dev->sigdata, &dev->sigmask );
+
+#if __HAVE_DMA_READY
+ if ( lock.flags & _DRM_LOCK_READY ) {
+ DRIVER_DMA_READY();
+ }
+#endif
+#if __HAVE_DMA_QUIESCENT
+ if ( lock.flags & _DRM_LOCK_QUIESCENT ) {
+ DRIVER_DMA_QUIESCENT();
+ }
+#endif
+ }
+
+ DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
+
+#if __HAVE_DMA_HISTOGRAM
+ atomic_inc(&dev->histo.lacq[DRM(histogram_slot)(get_cycles()-start)]);
+#endif
+ return ret;
+}
+
+
+int DRM(unlock)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_lock_t lock;
+
+ if ( copy_from_user( &lock, (drm_lock_t *)arg, sizeof(lock) ) )
+ return -EFAULT;
+
+ if ( lock.context == DRM_KERNEL_CONTEXT ) {
+ DRM_ERROR( "Process %d using kernel context %d\n",
+ current->pid, lock.context );
+ return -EINVAL;
+ }
+
+ atomic_inc( &dev->counts[_DRM_STAT_UNLOCKS] );
+
+ DRM(lock_transfer)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT );
+#if __HAVE_DMA_SCHEDULE
+ DRM(dma_schedule)( dev, 1 );
+#endif
+
+ /* FIXME: Do we ever really need to check this???
+ */
+ if ( 1 /* !dev->context_flag */ ) {
+ if ( DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT ) ) {
+ DRM_ERROR( "\n" );
+ }
+ }
+
+ unblock_all_signals();
+ return 0;
+}
diff --git a/linux-core/drm_ioctl.c b/linux-core/drm_ioctl.c
new file mode 100644
index 000000000..2fba6b0c2
--- /dev/null
+++ b/linux-core/drm_ioctl.c
@@ -0,0 +1,210 @@
+/* drm_ioctl.h -- IOCTL processing for DRM -*- linux-c -*-
+ * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.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
+ * 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>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+int DRM(irq_busid)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_irq_busid_t p;
+ struct pci_dev *dev;
+
+ if (copy_from_user(&p, (drm_irq_busid_t *)arg, sizeof(p)))
+ return -EFAULT;
+ dev = pci_find_slot(p.busnum, PCI_DEVFN(p.devnum, p.funcnum));
+ if (dev) p.irq = dev->irq;
+ else p.irq = 0;
+ DRM_DEBUG("%d:%d:%d => IRQ %d\n",
+ p.busnum, p.devnum, p.funcnum, p.irq);
+ if (copy_to_user((drm_irq_busid_t *)arg, &p, sizeof(p)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(getunique)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_unique_t u;
+
+ if (copy_from_user(&u, (drm_unique_t *)arg, sizeof(u)))
+ return -EFAULT;
+ if (u.unique_len >= dev->unique_len) {
+ if (copy_to_user(u.unique, dev->unique, dev->unique_len))
+ return -EFAULT;
+ }
+ u.unique_len = dev->unique_len;
+ if (copy_to_user((drm_unique_t *)arg, &u, sizeof(u)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(setunique)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_unique_t u;
+
+ if (dev->unique_len || dev->unique)
+ return -EBUSY;
+
+ if (copy_from_user(&u, (drm_unique_t *)arg, sizeof(u)))
+ return -EFAULT;
+
+ if (!u.unique_len)
+ return -EINVAL;
+
+ dev->unique_len = u.unique_len;
+ dev->unique = DRM(alloc)(u.unique_len + 1, DRM_MEM_DRIVER);
+ if (copy_from_user(dev->unique, u.unique, dev->unique_len))
+ return -EFAULT;
+ dev->unique[dev->unique_len] = '\0';
+
+ dev->devname = DRM(alloc)(strlen(dev->name) + strlen(dev->unique) + 2,
+ DRM_MEM_DRIVER);
+ sprintf(dev->devname, "%s@%s", dev->name, dev->unique);
+
+ return 0;
+}
+
+
+int DRM(getmap)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_map_t map;
+ drm_map_list_t *r_list = NULL;
+ struct list_head *list;
+ int idx;
+ int i;
+
+ if (copy_from_user(&map, (drm_map_t *)arg, sizeof(map)))
+ return -EFAULT;
+ idx = map.offset;
+
+ down(&dev->struct_sem);
+ if (idx < 0 || idx >= dev->map_count) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+
+ i = 0;
+ list_for_each(list, &dev->maplist->head) {
+ if(i == idx) {
+ r_list = (drm_map_list_t *)list;
+ break;
+ }
+ i++;
+ }
+ if(!r_list || !r_list->map) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+
+ map.offset = r_list->map->offset;
+ map.size = r_list->map->size;
+ map.type = r_list->map->type;
+ map.flags = r_list->map->flags;
+ map.handle = r_list->map->handle;
+ map.mtrr = r_list->map->mtrr;
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_map_t *)arg, &map, sizeof(map))) return -EFAULT;
+ return 0;
+}
+
+int DRM(getclient)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_client_t client;
+ drm_file_t *pt;
+ int idx;
+ int i;
+
+ if (copy_from_user(&client, (drm_client_t *)arg, sizeof(client)))
+ return -EFAULT;
+ idx = client.idx;
+ down(&dev->struct_sem);
+ for (i = 0, pt = dev->file_first; i < idx && pt; i++, pt = pt->next)
+ ;
+
+ if (!pt) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ client.auth = pt->authenticated;
+ client.pid = pt->pid;
+ client.uid = pt->uid;
+ client.magic = pt->magic;
+ client.iocs = pt->ioctl_count;
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_client_t *)arg, &client, sizeof(client)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(getstats)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_stats_t stats;
+ int i;
+
+ memset(&stats, 0, sizeof(stats));
+
+ down(&dev->struct_sem);
+
+ for (i = 0; i < dev->counters; i++) {
+ if (dev->types[i] == _DRM_STAT_LOCK)
+ stats.data[i].value
+ = (dev->lock.hw_lock
+ ? dev->lock.hw_lock->lock : 0);
+ else
+ stats.data[i].value = atomic_read(&dev->counts[i]);
+ stats.data[i].type = dev->types[i];
+ }
+
+ stats.count = dev->counters;
+
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_stats_t *)arg, &stats, sizeof(stats)))
+ return -EFAULT;
+ return 0;
+}
diff --git a/linux-core/drm_proc.c b/linux-core/drm_proc.c
new file mode 100644
index 000000000..f65f42b71
--- /dev/null
+++ b/linux-core/drm_proc.c
@@ -0,0 +1,630 @@
+/* drm_proc.h -- /proc support for DRM -*- linux-c -*-
+ * Created: Mon Jan 11 09:48:47 1999 by faith@valinux.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
+ * 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>
+ *
+ * Acknowledgements:
+ * Matthew J Sottek <matthew.j.sottek@intel.com> sent in a patch to fix
+ * the problem with the proc files not outputting all their information.
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+static int DRM(name_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int DRM(vm_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int DRM(clients_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int DRM(queues_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int DRM(bufs_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+#if DRM_DEBUG_CODE
+static int DRM(vma_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+#endif
+#if __HAVE_DMA_HISTOGRAM
+static int DRM(histo_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+#endif
+
+struct drm_proc_list {
+ const char *name;
+ int (*f)(char *, char **, off_t, int, int *, void *);
+} DRM(proc_list)[] = {
+ { "name", DRM(name_info) },
+ { "mem", DRM(mem_info) },
+ { "vm", DRM(vm_info) },
+ { "clients", DRM(clients_info) },
+ { "queues", DRM(queues_info) },
+ { "bufs", DRM(bufs_info) },
+#if DRM_DEBUG_CODE
+ { "vma", DRM(vma_info) },
+#endif
+#if __HAVE_DMA_HISTOGRAM
+ { "histo", DRM(histo_info) },
+#endif
+};
+#define DRM_PROC_ENTRIES (sizeof(DRM(proc_list))/sizeof(DRM(proc_list)[0]))
+
+struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
+ struct proc_dir_entry *root,
+ struct proc_dir_entry **dev_root)
+{
+ struct proc_dir_entry *ent;
+ int i, j;
+ char name[64];
+
+ if (!minor) root = create_proc_entry("dri", S_IFDIR, NULL);
+ if (!root) {
+ DRM_ERROR("Cannot create /proc/dri\n");
+ return NULL;
+ }
+
+ sprintf(name, "%d", minor);
+ *dev_root = create_proc_entry(name, S_IFDIR, root);
+ if (!*dev_root) {
+ DRM_ERROR("Cannot create /proc/%s\n", name);
+ return NULL;
+ }
+
+ for (i = 0; i < DRM_PROC_ENTRIES; i++) {
+ ent = create_proc_entry(DRM(proc_list)[i].name,
+ S_IFREG|S_IRUGO, *dev_root);
+ if (!ent) {
+ DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
+ name, DRM(proc_list)[i].name);
+ for (j = 0; j < i; j++)
+ remove_proc_entry(DRM(proc_list)[i].name,
+ *dev_root);
+ remove_proc_entry(name, root);
+ if (!minor) remove_proc_entry("dri", NULL);
+ return NULL;
+ }
+ ent->read_proc = DRM(proc_list)[i].f;
+ ent->data = dev;
+ }
+
+ return root;
+}
+
+
+int DRM(proc_cleanup)(int minor, struct proc_dir_entry *root,
+ struct proc_dir_entry *dev_root)
+{
+ int i;
+ char name[64];
+
+ if (!root || !dev_root) return 0;
+
+ for (i = 0; i < DRM_PROC_ENTRIES; i++)
+ remove_proc_entry(DRM(proc_list)[i].name, dev_root);
+ sprintf(name, "%d", minor);
+ remove_proc_entry(name, root);
+ if (!minor) remove_proc_entry("dri", NULL);
+
+ return 0;
+}
+
+static int DRM(name_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ if (dev->unique) {
+ DRM_PROC_PRINT("%s 0x%x %s\n",
+ dev->name, dev->device, dev->unique);
+ } else {
+ DRM_PROC_PRINT("%s 0x%x\n", dev->name, dev->device);
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(_vm_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_map_t *map;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+
+ /* Hardcoded from _DRM_FRAME_BUFFER,
+ _DRM_REGISTERS, _DRM_SHM, and
+ _DRM_AGP. */
+ const char *types[] = { "FB", "REG", "SHM", "AGP" };
+ const char *type;
+ int i;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT("slot offset size type flags "
+ "address mtrr\n\n");
+ i = 0;
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *)list;
+ map = r_list->map;
+ if(!map) continue;
+ if (map->type < 0 || map->type > 3) type = "??";
+ else type = types[map->type];
+ DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx ",
+ i,
+ map->offset,
+ map->size,
+ type,
+ map->flags,
+ (unsigned long)map->handle);
+ if (map->mtrr < 0) {
+ DRM_PROC_PRINT("none\n");
+ } else {
+ DRM_PROC_PRINT("%4d\n", map->mtrr);
+ }
+ i++;
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(vm_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_vm_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+
+static int DRM(_queues_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ int i;
+ drm_queue_t *q;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT(" ctx/flags use fin"
+ " blk/rw/rwf wait flushed queued"
+ " locks\n\n");
+ for (i = 0; i < dev->queue_count; i++) {
+ q = dev->queuelist[i];
+ atomic_inc(&q->use_count);
+ DRM_PROC_PRINT_RET(atomic_dec(&q->use_count),
+ "%5d/0x%03x %5d %5d"
+ " %5d/%c%c/%c%c%c %5Zd\n",
+ i,
+ q->flags,
+ atomic_read(&q->use_count),
+ atomic_read(&q->finalization),
+ atomic_read(&q->block_count),
+ atomic_read(&q->block_read) ? 'r' : '-',
+ atomic_read(&q->block_write) ? 'w' : '-',
+ waitqueue_active(&q->read_queue) ? 'r':'-',
+ waitqueue_active(&q->write_queue) ? 'w':'-',
+ waitqueue_active(&q->flush_queue) ? 'f':'-',
+ DRM_BUFCOUNT(&q->waitlist));
+ atomic_dec(&q->use_count);
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(queues_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_queues_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+/* drm_bufs_info is called whenever a process reads
+ /dev/dri/<dev>/bufs. */
+
+static int DRM(_bufs_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_device_dma_t *dma = dev->dma;
+ int i;
+
+ if (!dma || offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT(" o size count free segs pages kB\n\n");
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].buf_count)
+ DRM_PROC_PRINT("%2d %8d %5d %5d %5d %5d %5ld\n",
+ i,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].buf_count,
+ atomic_read(&dma->bufs[i]
+ .freelist.count),
+ dma->bufs[i].seg_count,
+ dma->bufs[i].seg_count
+ *(1 << dma->bufs[i].page_order),
+ (dma->bufs[i].seg_count
+ * (1 << dma->bufs[i].page_order))
+ * PAGE_SIZE / 1024);
+ }
+ DRM_PROC_PRINT("\n");
+ for (i = 0; i < dma->buf_count; i++) {
+ if (i && !(i%32)) DRM_PROC_PRINT("\n");
+ DRM_PROC_PRINT(" %d", dma->buflist[i]->list);
+ }
+ DRM_PROC_PRINT("\n");
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(bufs_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_bufs_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+
+static int DRM(_clients_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_file_t *priv;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT("a dev pid uid magic ioctls\n\n");
+ for (priv = dev->file_first; priv; priv = priv->next) {
+ DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
+ priv->authenticated ? 'y' : 'n',
+ priv->minor,
+ priv->pid,
+ priv->uid,
+ priv->magic,
+ priv->ioctl_count);
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(clients_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_clients_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+#if DRM_DEBUG_CODE
+
+#define DRM_VMA_VERBOSE 0
+
+static int DRM(_vma_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_vma_entry_t *pt;
+ struct vm_area_struct *vma;
+#if DRM_VMA_VERBOSE
+ unsigned long i;
+ unsigned long address;
+ pgd_t *pgd;
+ pmd_t *pmd;
+ pte_t *pte;
+#endif
+#if defined(__i386__)
+ unsigned int pgprot;
+#endif
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
+ atomic_read(&dev->vma_count),
+ high_memory, virt_to_phys(high_memory));
+ for (pt = dev->vmalist; pt; pt = pt->next) {
+ if (!(vma = pt->vma)) continue;
+ DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx",
+ pt->pid,
+ vma->vm_start,
+ vma->vm_end,
+ vma->vm_flags & VM_READ ? 'r' : '-',
+ vma->vm_flags & VM_WRITE ? 'w' : '-',
+ vma->vm_flags & VM_EXEC ? 'x' : '-',
+ vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+ vma->vm_flags & VM_LOCKED ? 'l' : '-',
+ vma->vm_flags & VM_IO ? 'i' : '-',
+ VM_OFFSET(vma));
+
+#if defined(__i386__)
+ pgprot = pgprot_val(vma->vm_page_prot);
+ DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c",
+ pgprot & _PAGE_PRESENT ? 'p' : '-',
+ pgprot & _PAGE_RW ? 'w' : 'r',
+ pgprot & _PAGE_USER ? 'u' : 's',
+ pgprot & _PAGE_PWT ? 't' : 'b',
+ pgprot & _PAGE_PCD ? 'u' : 'c',
+ pgprot & _PAGE_ACCESSED ? 'a' : '-',
+ pgprot & _PAGE_DIRTY ? 'd' : '-',
+ pgprot & _PAGE_PSE ? 'm' : 'k',
+ pgprot & _PAGE_GLOBAL ? 'g' : 'l' );
+#endif
+ DRM_PROC_PRINT("\n");
+#if 0
+ for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) {
+ pgd = pgd_offset(vma->vm_mm, i);
+ pmd = pmd_offset(pgd, i);
+ pte = pte_offset(pmd, i);
+ if (pte_present(*pte)) {
+ address = __pa(pte_page(*pte))
+ + (i & (PAGE_SIZE-1));
+ DRM_PROC_PRINT(" 0x%08lx -> 0x%08lx"
+ " %c%c%c%c%c\n",
+ i,
+ address,
+ pte_read(*pte) ? 'r' : '-',
+ pte_write(*pte) ? 'w' : '-',
+ pte_exec(*pte) ? 'x' : '-',
+ pte_dirty(*pte) ? 'd' : '-',
+ pte_young(*pte) ? 'a' : '-' );
+ } else {
+ DRM_PROC_PRINT(" 0x%08lx\n", i);
+ }
+ }
+#endif
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(vma_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_vma_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+#endif
+
+
+#if __HAVE_DMA_HISTOGRAM
+static int DRM(_histo_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_device_dma_t *dma = dev->dma;
+ int i;
+ unsigned long slot_value = DRM_DMA_HISTOGRAM_INITIAL;
+ unsigned long prev_value = 0;
+ drm_buf_t *buffer;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT("general statistics:\n");
+ DRM_PROC_PRINT("total %10u\n", atomic_read(&dev->histo.total));
+ DRM_PROC_PRINT("open %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_OPENS]));
+ DRM_PROC_PRINT("close %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_CLOSES]));
+ DRM_PROC_PRINT("ioctl %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_IOCTLS]));
+
+ DRM_PROC_PRINT("\nlock statistics:\n");
+ DRM_PROC_PRINT("locks %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_LOCKS]));
+ DRM_PROC_PRINT("unlocks %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_UNLOCKS]));
+
+ if (dma) {
+#if 0
+ DRM_PROC_PRINT("\ndma statistics:\n");
+ DRM_PROC_PRINT("prio %10u\n",
+ atomic_read(&dma->total_prio));
+ DRM_PROC_PRINT("bytes %10u\n",
+ atomic_read(&dma->total_bytes));
+ DRM_PROC_PRINT("dmas %10u\n",
+ atomic_read(&dma->total_dmas));
+ DRM_PROC_PRINT("missed:\n");
+ DRM_PROC_PRINT(" dma %10u\n",
+ atomic_read(&dma->total_missed_dma));
+ DRM_PROC_PRINT(" lock %10u\n",
+ atomic_read(&dma->total_missed_lock));
+ DRM_PROC_PRINT(" free %10u\n",
+ atomic_read(&dma->total_missed_free));
+ DRM_PROC_PRINT(" sched %10u\n",
+ atomic_read(&dma->total_missed_sched));
+ DRM_PROC_PRINT("tried %10u\n",
+ atomic_read(&dma->total_tried));
+ DRM_PROC_PRINT("hit %10u\n",
+ atomic_read(&dma->total_hit));
+ DRM_PROC_PRINT("lost %10u\n",
+ atomic_read(&dma->total_lost));
+#endif
+
+ buffer = dma->next_buffer;
+ if (buffer) {
+ DRM_PROC_PRINT("next_buffer %7d\n", buffer->idx);
+ } else {
+ DRM_PROC_PRINT("next_buffer none\n");
+ }
+ buffer = dma->this_buffer;
+ if (buffer) {
+ DRM_PROC_PRINT("this_buffer %7d\n", buffer->idx);
+ } else {
+ DRM_PROC_PRINT("this_buffer none\n");
+ }
+ }
+
+
+ DRM_PROC_PRINT("\nvalues:\n");
+ if (dev->lock.hw_lock) {
+ DRM_PROC_PRINT("lock 0x%08x\n",
+ dev->lock.hw_lock->lock);
+ } else {
+ DRM_PROC_PRINT("lock none\n");
+ }
+ DRM_PROC_PRINT("context_flag 0x%08lx\n", dev->context_flag);
+ DRM_PROC_PRINT("interrupt_flag 0x%08lx\n", dev->interrupt_flag);
+ DRM_PROC_PRINT("dma_flag 0x%08lx\n", dev->dma_flag);
+
+ DRM_PROC_PRINT("queue_count %10d\n", dev->queue_count);
+ DRM_PROC_PRINT("last_context %10d\n", dev->last_context);
+ DRM_PROC_PRINT("last_switch %10lu\n", dev->last_switch);
+ DRM_PROC_PRINT("last_checked %10d\n", dev->last_checked);
+
+
+ DRM_PROC_PRINT("\n q2d d2c c2f"
+ " q2c q2f dma sch"
+ " ctx lacq lhld\n\n");
+ for (i = 0; i < DRM_DMA_HISTOGRAM_SLOTS; i++) {
+ DRM_PROC_PRINT("%s %10lu %10u %10u %10u %10u %10u"
+ " %10u %10u %10u %10u %10u\n",
+ i == DRM_DMA_HISTOGRAM_SLOTS - 1 ? ">=" : "< ",
+ i == DRM_DMA_HISTOGRAM_SLOTS - 1
+ ? prev_value : slot_value ,
+
+ atomic_read(&dev->histo
+ .queued_to_dispatched[i]),
+ atomic_read(&dev->histo
+ .dispatched_to_completed[i]),
+ atomic_read(&dev->histo
+ .completed_to_freed[i]),
+
+ atomic_read(&dev->histo
+ .queued_to_completed[i]),
+ atomic_read(&dev->histo
+ .queued_to_freed[i]),
+ atomic_read(&dev->histo.dma[i]),
+ atomic_read(&dev->histo.schedule[i]),
+ atomic_read(&dev->histo.ctx[i]),
+ atomic_read(&dev->histo.lacq[i]),
+ atomic_read(&dev->histo.lhld[i]));
+ prev_value = slot_value;
+ slot_value = DRM_DMA_HISTOGRAM_NEXT(slot_value);
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(histo_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_histo_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+#endif
diff --git a/linux-core/drm_vm.c b/linux-core/drm_vm.c
new file mode 100644
index 000000000..fb51926ba
--- /dev/null
+++ b/linux-core/drm_vm.c
@@ -0,0 +1,416 @@
+/* drm_vm.h -- Memory mapping for DRM -*- linux-c -*-
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.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
+ * 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>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+struct vm_operations_struct drm_vm_ops = {
+ nopage: DRM(vm_nopage),
+ open: DRM(vm_open),
+ close: DRM(vm_close),
+};
+
+struct vm_operations_struct drm_vm_shm_ops = {
+ nopage: DRM(vm_shm_nopage),
+ open: DRM(vm_open),
+ close: DRM(vm_shm_close),
+};
+
+struct vm_operations_struct drm_vm_dma_ops = {
+ nopage: DRM(vm_dma_nopage),
+ open: DRM(vm_open),
+ close: DRM(vm_close),
+};
+
+#if LINUX_VERSION_CODE < 0x020317
+unsigned long DRM(vm_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#else
+ /* Return type changed in 2.3.23 */
+struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#endif
+{
+ return NOPAGE_SIGBUS; /* Disallow mremap */
+}
+
+#if LINUX_VERSION_CODE < 0x020317
+unsigned long DRM(vm_shm_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#else
+ /* Return type changed in 2.3.23 */
+struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#endif
+{
+#if LINUX_VERSION_CODE >= 0x020300
+ drm_map_t *map = (drm_map_t *)vma->vm_private_data;
+#else
+ drm_map_t *map = (drm_map_t *)vma->vm_pte;
+#endif
+ unsigned long physical;
+ unsigned long offset;
+ unsigned long i;
+ pgd_t *pgd;
+ pmd_t *pmd;
+ pte_t *pte;
+
+ if (address > vma->vm_end) return NOPAGE_SIGBUS; /* Disallow mremap */
+ if (!map) return NOPAGE_OOM; /* Nothing allocated */
+
+ offset = address - vma->vm_start;
+ i = (unsigned long)map->handle + offset;
+ /* We have to walk page tables here because we need large SAREA's, and
+ * they need to be virtually contigious in kernel space.
+ */
+ pgd = pgd_offset_k( i );
+ if( !pgd_present( *pgd ) ) return NOPAGE_OOM;
+ pmd = pmd_offset( pgd, i );
+ if( !pmd_present( *pmd ) ) return NOPAGE_OOM;
+ pte = pte_offset( pmd, i );
+ if( !pte_present( *pte ) ) return NOPAGE_OOM;
+ physical = (unsigned long)pte_page( *pte )->virtual;
+ atomic_inc(&virt_to_page(physical)->count); /* Dec. by kernel */
+
+ DRM_DEBUG("0x%08lx => 0x%08lx\n", address, physical);
+#if LINUX_VERSION_CODE < 0x020317
+ return physical;
+#else
+ return virt_to_page(physical);
+#endif
+}
+
+/* Special close routine which deletes map information if we are the last
+ * person to close a mapping and its not in the global maplist.
+ */
+
+void DRM(vm_shm_close)(struct vm_area_struct *vma)
+{
+ drm_file_t *priv = vma->vm_file->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_vma_entry_t *pt, *prev;
+ drm_map_t *map;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+ int found_maps = 0;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+#if LINUX_VERSION_CODE < 0x020333
+ MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+ atomic_dec(&dev->vma_count);
+
+#if LINUX_VERSION_CODE >= 0x020300
+ map = vma->vm_private_data;
+#else
+ map = vma->vm_pte;
+#endif
+
+ down(&dev->struct_sem);
+ for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
+#if LINUX_VERSION_CODE >= 0x020300
+ if (pt->vma->vm_private_data == map) found_maps++;
+#else
+ if (pt->vma->vm_pte == map) found_maps++;
+#endif
+ if (pt->vma == vma) {
+ if (prev) {
+ prev->next = pt->next;
+ } else {
+ dev->vmalist = pt->next;
+ }
+ DRM(free)(pt, sizeof(*pt), DRM_MEM_VMAS);
+ }
+ }
+ /* We were the only map that was found */
+ if(found_maps == 1 &&
+ map->flags & _DRM_REMOVABLE) {
+ /* Check to see if we are in the maplist, if we are not, then
+ * we delete this mappings information.
+ */
+ found_maps = 0;
+ list = &dev->maplist->head;
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *) list;
+ if (r_list->map == map) found_maps++;
+ }
+
+ if(!found_maps) {
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if __REALLY_HAVE_MTRR
+ if (map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr,
+ map->offset,
+ map->size);
+ DRM_DEBUG("mtrr_del = %d\n", retcode);
+ }
+#endif
+ DRM(ioremapfree)(map->handle, map->size);
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+ case _DRM_AGP:
+ break;
+ }
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ }
+ }
+ up(&dev->struct_sem);
+}
+
+#if LINUX_VERSION_CODE < 0x020317
+unsigned long DRM(vm_dma_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#else
+ /* Return type changed in 2.3.23 */
+struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#endif
+{
+ drm_file_t *priv = vma->vm_file->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ unsigned long physical;
+ unsigned long offset;
+ unsigned long page;
+
+ if (!dma) return NOPAGE_SIGBUS; /* Error */
+ if (address > vma->vm_end) return NOPAGE_SIGBUS; /* Disallow mremap */
+ if (!dma->pagelist) return NOPAGE_OOM ; /* Nothing allocated */
+
+ offset = address - vma->vm_start; /* vm_[pg]off[set] should be 0 */
+ page = offset >> PAGE_SHIFT;
+ physical = dma->pagelist[page] + (offset & (~PAGE_MASK));
+ atomic_inc(&virt_to_page(physical)->count); /* Dec. by kernel */
+
+ DRM_DEBUG("0x%08lx (page %lu) => 0x%08lx\n", address, page, physical);
+#if LINUX_VERSION_CODE < 0x020317
+ return physical;
+#else
+ return virt_to_page(physical);
+#endif
+}
+
+void DRM(vm_open)(struct vm_area_struct *vma)
+{
+ drm_file_t *priv = vma->vm_file->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_vma_entry_t *vma_entry;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_inc(&dev->vma_count);
+#if LINUX_VERSION_CODE < 0x020333
+ /* The map can exist after the fd is closed. */
+ MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+
+ vma_entry = DRM(alloc)(sizeof(*vma_entry), DRM_MEM_VMAS);
+ if (vma_entry) {
+ down(&dev->struct_sem);
+ vma_entry->vma = vma;
+ vma_entry->next = dev->vmalist;
+ vma_entry->pid = current->pid;
+ dev->vmalist = vma_entry;
+ up(&dev->struct_sem);
+ }
+}
+
+void DRM(vm_close)(struct vm_area_struct *vma)
+{
+ drm_file_t *priv = vma->vm_file->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_vma_entry_t *pt, *prev;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+#if LINUX_VERSION_CODE < 0x020333
+ MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+ atomic_dec(&dev->vma_count);
+
+ down(&dev->struct_sem);
+ for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
+ if (pt->vma == vma) {
+ if (prev) {
+ prev->next = pt->next;
+ } else {
+ dev->vmalist = pt->next;
+ }
+ DRM(free)(pt, sizeof(*pt), DRM_MEM_VMAS);
+ break;
+ }
+ }
+ up(&dev->struct_sem);
+}
+
+int DRM(mmap_dma)(struct file *filp, struct vm_area_struct *vma)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev;
+ drm_device_dma_t *dma;
+ unsigned long length = vma->vm_end - vma->vm_start;
+
+ lock_kernel();
+ dev = priv->dev;
+ dma = dev->dma;
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, VM_OFFSET(vma));
+
+ /* Length must match exact page count */
+ if (!dma || (length >> PAGE_SHIFT) != dma->page_count) {
+ unlock_kernel();
+ return -EINVAL;
+ }
+ unlock_kernel();
+
+ vma->vm_ops = &drm_vm_dma_ops;
+ vma->vm_flags |= VM_LOCKED | VM_SHM; /* Don't swap */
+
+#if LINUX_VERSION_CODE < 0x020203 /* KERNEL_VERSION(2,2,3) */
+ /* In Linux 2.2.3 and above, this is
+ handled in do_mmap() in mm/mmap.c. */
+ ++filp->f_count;
+#endif
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ DRM(vm_open)(vma);
+ return 0;
+}
+
+int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_map_t *map = NULL;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, VM_OFFSET(vma));
+
+ if (!VM_OFFSET(vma)) return DRM(mmap_dma)(filp, vma);
+
+ /* A sequential search of a linked list is
+ fine here because: 1) there will only be
+ about 5-10 entries in the list and, 2) a
+ DRI client only has to do this mapping
+ once, so it doesn't have to be optimized
+ for performance, even if the list was a
+ bit longer. */
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *)list;
+ map = r_list->map;
+ if (!map) continue;
+ if (map->offset == VM_OFFSET(vma)) break;
+ }
+
+ if (!map || ((map->flags&_DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
+ return -EPERM;
+
+ /* Check for valid size. */
+ if (map->size != vma->vm_end - vma->vm_start) return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
+ vma->vm_flags &= VM_MAYWRITE;
+#if defined(__i386__)
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
+#else
+ /* Ye gads this is ugly. With more thought
+ we could move this up higher and use
+ `protection_map' instead. */
+ vma->vm_page_prot = __pgprot(pte_val(pte_wrprotect(
+ __pte(pgprot_val(vma->vm_page_prot)))));
+#endif
+ }
+
+ switch (map->type) {
+ case _DRM_FRAME_BUFFER:
+ case _DRM_REGISTERS:
+ case _DRM_AGP:
+ if (VM_OFFSET(vma) >= __pa(high_memory)) {
+#if defined(__i386__)
+ if (boot_cpu_data.x86 > 3 && map->type != _DRM_AGP) {
+ pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_PWT;
+ }
+#elif defined(__ia64__)
+ if (map->type != _DRM_AGP)
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+#endif
+ vma->vm_flags |= VM_IO; /* not in core dump */
+ }
+ if (remap_page_range(vma->vm_start,
+ VM_OFFSET(vma),
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+ DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx,"
+ " offset = 0x%lx\n",
+ map->type,
+ vma->vm_start, vma->vm_end, VM_OFFSET(vma));
+ vma->vm_ops = &drm_vm_ops;
+ break;
+ case _DRM_SHM:
+ vma->vm_ops = &drm_vm_shm_ops;
+#if LINUX_VERSION_CODE >= 0x020300
+ vma->vm_private_data = (void *)map;
+#else
+ vma->vm_pte = (unsigned long)map;
+#endif
+ /* Don't let this area swap. Change when
+ DRM_KERNEL advisory is supported. */
+ vma->vm_flags |= VM_LOCKED;
+ break;
+ default:
+ return -EINVAL; /* This should never happen. */
+ }
+ vma->vm_flags |= VM_LOCKED | VM_SHM; /* Don't swap */
+
+#if LINUX_VERSION_CODE < 0x020203 /* KERNEL_VERSION(2,2,3) */
+ /* In Linux 2.2.3 and above, this is
+ handled in do_mmap() in mm/mmap.c. */
+ ++filp->f_count;
+#endif
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ DRM(vm_open)(vma);
+ return 0;
+}
diff --git a/linux/drm_bufs.h b/linux/drm_bufs.h
new file mode 100644
index 000000000..63cfb0d44
--- /dev/null
+++ b/linux/drm_bufs.h
@@ -0,0 +1,829 @@
+/* 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>
+ */
+
+#define __NO_VERSION__
+#include <linux/vmalloc.h>
+#include "drmP.h"
+
+#ifndef __HAVE_PCI_DMA
+#define __HAVE_PCI_DMA 0
+#endif
+
+#ifndef DRIVER_BUF_PRIV_T
+#define DRIVER_BUF_PRIV_T u32
+#endif
+#ifndef DRIVER_AGP_BUFFERS_MAP
+#if __HAVE_AGP && __HAVE_DMA
+#error "You must define DRIVER_AGP_BUFFERS_MAP()"
+#else
+#define DRIVER_AGP_BUFFERS_MAP( dev ) NULL
+#endif
+#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)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_map_t *map;
+ drm_map_list_t *list;
+
+ if ( !(filp->f_mode & 3) ) return -EACCES; /* Require read/write */
+
+ map = DRM(alloc)( sizeof(*map), DRM_MEM_MAPS );
+ if ( !map )
+ return -ENOMEM;
+
+ if ( copy_from_user( map, (drm_map_t *)arg, sizeof(*map) ) ) {
+ DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
+ return -EFAULT;
+ }
+
+ /* 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 -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 -EINVAL;
+ }
+ map->mtrr = -1;
+ map->handle = 0;
+
+ switch ( map->type ) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#ifndef __sparc__
+ if ( map->offset + map->size < map->offset ||
+ map->offset < virt_to_phys(high_memory) ) {
+ DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
+ return -EINVAL;
+ }
+#endif
+#if __REALLY_HAVE_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:
+ map->handle = vmalloc_32(map->size);
+ DRM_DEBUG( "%ld %d %p\n",
+ map->size, DRM(order)( map->size ), map->handle );
+ 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;
+#if __REALLY_HAVE_AGP
+ case _DRM_AGP:
+ map->offset = map->offset + dev->agp->base;
+ map->mtrr = dev->agp->agp_mtrr; /* for getmap */
+ break;
+#endif
+ default:
+ DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
+ return -EINVAL;
+ }
+
+ list = DRM(alloc)(sizeof(*list), DRM_MEM_MAPS);
+ if(!list) {
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ return -EINVAL;
+ }
+ memset(list, 0, sizeof(*list));
+ list->map = map;
+
+ down(&dev->struct_sem);
+ list_add(&list->head, &dev->maplist->head);
+ up(&dev->struct_sem);
+
+ if ( copy_to_user( (drm_map_t *)arg, map, sizeof(*map) ) )
+ return -EFAULT;
+ if ( map->type != _DRM_SHM ) {
+ if ( copy_to_user( &((drm_map_t *)arg)->handle,
+ &map->offset,
+ sizeof(map->offset) ) )
+ return -EFAULT;
+ }
+ return 0;
+}
+
+
+/* Remove a map private from list and deallocate resources if the mapping
+ * isn't in use.
+ */
+
+int DRM(rmmap)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ struct list_head *list;
+ drm_map_list_t *r_list;
+ drm_vma_entry_t *pt, *prev;
+ drm_map_t *map;
+ drm_map_t request;
+ int found_maps = 0;
+
+ if (copy_from_user(&request, (drm_map_t *)arg,
+ sizeof(request))) {
+ return -EFAULT;
+ }
+
+ down(&dev->struct_sem);
+ list = &dev->maplist->head;
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *) list;
+
+ if(r_list->map &&
+ r_list->map->handle == request.handle &&
+ r_list->map->flags & _DRM_REMOVABLE) break;
+ }
+
+ /* List has wrapped around to the head pointer, or its empty we didn't
+ * find anything.
+ */
+ if(list == (&dev->maplist->head)) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ map = r_list->map;
+ list_del(list);
+ DRM(free)(list, sizeof(*list), DRM_MEM_MAPS);
+
+ for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
+#if LINUX_VERSION_CODE >= 0x020300
+ if (pt->vma->vm_private_data == map) found_maps++;
+#else
+ if (pt->vma->vm_pte == map) found_maps++;
+#endif
+ }
+
+ if(!found_maps) {
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if __REALLY_HAVE_MTRR
+ if (map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr,
+ map->offset,
+ map->size);
+ DRM_DEBUG("mtrr_del = %d\n", retcode);
+ }
+#endif
+ DRM(ioremapfree)(map->handle, map->size);
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+ case _DRM_AGP:
+ break;
+ }
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ }
+ up(&dev->struct_sem);
+ return 0;
+}
+
+#if __HAVE_DMA
+
+#if __REALLY_HAVE_AGP
+int DRM(addbufs_agp)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ drm_buf_desc_t request;
+ 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;
+
+ if ( !dma ) return -EINVAL;
+
+ if ( copy_from_user( &request, (drm_buf_desc_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ count = request.count;
+ order = DRM(order)( request.size );
+ size = 1 << order;
+
+ alignment = (request.flags & _DRM_PAGE_ALIGN)
+ ? PAGE_ALIGN(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: %ld\n", agp_offset );
+ DRM_DEBUG( "alignment: %d\n", alignment );
+ DRM_DEBUG( "page_order: %d\n", page_order );
+ DRM_DEBUG( "total: %d\n", total );
+
+ if ( order < DRM_MIN_ORDER || order > DRM_MAX_ORDER ) return -EINVAL;
+ if ( dev->queue_count ) return -EBUSY; /* Not while in use */
+
+ spin_lock( &dev->count_lock );
+ if ( dev->buf_use ) {
+ spin_unlock( &dev->count_lock );
+ return -EBUSY;
+ }
+ atomic_inc( &dev->buf_alloc );
+ spin_unlock( &dev->count_lock );
+
+ down( &dev->struct_sem );
+ entry = &dma->bufs[order];
+ if ( entry->buf_count ) {
+ up( &dev->struct_sem );
+ 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 ) {
+ up( &dev->struct_sem );
+ atomic_dec( &dev->buf_alloc );
+ return -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->waiting = 0;
+ buf->pending = 0;
+ init_waitqueue_head( &buf->dma_wait );
+ buf->pid = 0;
+
+ buf->dev_priv_size = sizeof(DRIVER_BUF_PRIV_T);
+ buf->dev_private = DRM(alloc)( sizeof(DRIVER_BUF_PRIV_T),
+ DRM_MEM_BUFS );
+ memset( buf->dev_private, 0, buf->dev_priv_size );
+
+#if __HAVE_DMA_HISTOGRAM
+ buf->time_queued = 0;
+ buf->time_dispatched = 0;
+ buf->time_completed = 0;
+ buf->time_freed = 0;
+#endif
+ 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 );
+
+ 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 = 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 );
+
+#if __HAVE_DMA_FREELIST
+ 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] );
+ }
+#endif
+ up( &dev->struct_sem );
+
+ request.count = entry->buf_count;
+ request.size = size;
+
+ if ( copy_to_user( (drm_buf_desc_t *)arg, &request, sizeof(request) ) )
+ return -EFAULT;
+
+ dma->flags = _DRM_DMA_USE_AGP;
+
+ atomic_dec( &dev->buf_alloc );
+ return 0;
+}
+#endif /* __REALLY_HAVE_AGP */
+
+#if __HAVE_PCI_DMA
+int DRM(addbufs_pci)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ 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;
+
+ if ( copy_from_user( &request, (drm_buf_desc_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ 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)
+ ? PAGE_ALIGN(size) : size;
+ page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0;
+ total = PAGE_SIZE << page_order;
+
+ spin_lock( &dev->count_lock );
+ if ( dev->buf_use ) {
+ spin_unlock( &dev->count_lock );
+ return -EBUSY;
+ }
+ atomic_inc( &dev->buf_alloc );
+ spin_unlock( &dev->count_lock );
+
+ down( &dev->struct_sem );
+ entry = &dma->bufs[order];
+ if ( entry->buf_count ) {
+ up( &dev->struct_sem );
+ 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 ) {
+ up( &dev->struct_sem );
+ 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 );
+ up( &dev->struct_sem );
+ 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 ) {
+ page = DRM(alloc_pages)( page_order, DRM_MEM_DMA );
+ if ( !page ) 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;
+ init_waitqueue_head( &buf->dma_wait );
+ buf->pid = 0;
+#if __HAVE_DMA_HISTOGRAM
+ buf->time_queued = 0;
+ buf->time_dispatched = 0;
+ buf->time_completed = 0;
+ buf->time_freed = 0;
+#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 = 0 ; i < entry->buf_count ; i++ ) {
+ dma->buflist[i + dma->buf_count] = &entry->buflist[i];
+ }
+
+ 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);
+
+#if __HAVE_DMA_FREELIST
+ 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] );
+ }
+#endif
+ up( &dev->struct_sem );
+
+ request.count = entry->buf_count;
+ request.size = size;
+
+ if ( copy_to_user( (drm_buf_desc_t *)arg, &request, sizeof(request) ) )
+ return -EFAULT;
+
+ atomic_dec( &dev->buf_alloc );
+ return 0;
+}
+#endif /* __HAVE_PCI_DMA */
+
+int DRM(addbufs)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_buf_desc_t request;
+
+ if ( copy_from_user( &request, (drm_buf_desc_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+#if __REALLY_HAVE_AGP
+ if ( request.flags & _DRM_AGP_BUFFER )
+ return DRM(addbufs_agp)( inode, filp, cmd, arg );
+ else
+#endif
+#if __HAVE_PCI_DMA
+ return DRM(addbufs_pci)( inode, filp, cmd, arg );
+#else
+ return -EINVAL;
+#endif
+}
+
+int DRM(infobufs)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ drm_buf_info_t request;
+ int i;
+ int count;
+
+ if ( !dma ) return -EINVAL;
+
+ spin_lock( &dev->count_lock );
+ if ( atomic_read( &dev->buf_alloc ) ) {
+ spin_unlock( &dev->count_lock );
+ return -EBUSY;
+ }
+ ++dev->buf_use; /* Can't allocate more after this call */
+ spin_unlock( &dev->count_lock );
+
+ if ( copy_from_user( &request,
+ (drm_buf_info_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ 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 *to = &request.list[count];
+ drm_buf_entry_t *from = &dma->bufs[i];
+ drm_freelist_t *list = &dma->bufs[i].freelist;
+ if ( copy_to_user( &to->count,
+ &from->buf_count,
+ sizeof(from->buf_count) ) ||
+ copy_to_user( &to->size,
+ &from->buf_size,
+ sizeof(from->buf_size) ) ||
+ copy_to_user( &to->low_mark,
+ &list->low_mark,
+ sizeof(list->low_mark) ) ||
+ copy_to_user( &to->high_mark,
+ &list->high_mark,
+ sizeof(list->high_mark) ) )
+ return -EFAULT;
+
+ 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;
+
+ if ( copy_to_user( (drm_buf_info_t *)arg,
+ &request,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ return 0;
+}
+
+int DRM(markbufs)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ drm_buf_desc_t request;
+ int order;
+ drm_buf_entry_t *entry;
+
+ if ( !dma ) return -EINVAL;
+
+ if ( copy_from_user( &request,
+ (drm_buf_desc_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ 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)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ drm_buf_free_t request;
+ int i;
+ int idx;
+ drm_buf_t *buf;
+
+ if ( !dma ) return -EINVAL;
+
+ if ( copy_from_user( &request,
+ (drm_buf_free_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ DRM_DEBUG( "%d\n", request.count );
+ for ( i = 0 ; i < request.count ; i++ ) {
+ if ( copy_from_user( &idx,
+ &request.list[i],
+ sizeof(idx) ) )
+ return -EFAULT;
+ 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 != current->pid ) {
+ DRM_ERROR( "Process %d freeing buffer owned by %d\n",
+ current->pid, buf->pid );
+ return -EINVAL;
+ }
+ DRM(free_buffer)( dev, buf );
+ }
+
+ return 0;
+}
+
+int DRM(mapbufs)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ int retcode = 0;
+ const int zero = 0;
+ unsigned long virtual;
+ unsigned long address;
+ drm_buf_map_t request;
+ int i;
+
+ if ( !dma ) return -EINVAL;
+
+ spin_lock( &dev->count_lock );
+ if ( atomic_read( &dev->buf_alloc ) ) {
+ spin_unlock( &dev->count_lock );
+ return -EBUSY;
+ }
+ dev->buf_use++; /* Can't allocate more after this call */
+ spin_unlock( &dev->count_lock );
+
+ if ( copy_from_user( &request, (drm_buf_map_t *)arg,
+ sizeof(request) ) )
+ return -EFAULT;
+
+ if ( request.count >= dma->buf_count ) {
+ if ( __HAVE_AGP && (dma->flags & _DRM_DMA_USE_AGP) ) {
+ drm_map_t *map = DRIVER_AGP_BUFFERS_MAP( dev );
+
+ if ( !map ) {
+ retcode = -EINVAL;
+ goto done;
+ }
+
+ down( &current->mm->mmap_sem );
+ virtual = do_mmap( filp, 0, map->size,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED,
+ (unsigned long)map->offset );
+ up( &current->mm->mmap_sem );
+ } else {
+ down( &current->mm->mmap_sem );
+ virtual = do_mmap( filp, 0, dma->byte_count,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED, 0 );
+ up( &current->mm->mmap_sem );
+ }
+ if ( virtual > -1024UL ) {
+ /* Real error */
+ retcode = (signed long)virtual;
+ goto done;
+ }
+ request.virtual = (void *)virtual;
+
+ for ( i = 0 ; i < dma->buf_count ; i++ ) {
+ if ( copy_to_user( &request.list[i].idx,
+ &dma->buflist[i]->idx,
+ sizeof(request.list[0].idx) ) ) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if ( copy_to_user( &request.list[i].total,
+ &dma->buflist[i]->total,
+ sizeof(request.list[0].total) ) ) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ if ( copy_to_user( &request.list[i].used,
+ &zero,
+ sizeof(zero) ) ) {
+ retcode = -EFAULT;
+ goto done;
+ }
+ address = virtual + dma->buflist[i]->offset; /* *** */
+ if ( 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 );
+
+ if ( copy_to_user( (drm_buf_map_t *)arg, &request, sizeof(request) ) )
+ return -EFAULT;
+
+ return retcode;
+}
+
+#endif /* __HAVE_DMA */
diff --git a/linux/drm_context.h b/linux/drm_context.h
new file mode 100644
index 000000000..4ac896ef5
--- /dev/null
+++ b/linux/drm_context.h
@@ -0,0 +1,760 @@
+/* drm_context.h -- IOCTLs for generic contexts -*- linux-c -*-
+ * Created: Fri Nov 24 18:31:37 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>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+#if __HAVE_CTX_BITMAP
+
+/* ================================================================
+ * Context bitmap support
+ */
+
+void DRM(ctxbitmap_free)( drm_device_t *dev, int ctx_handle )
+{
+ if ( ctx_handle < 0 ) goto failed;
+ if ( !dev->ctx_bitmap ) goto failed;
+
+ if ( ctx_handle < DRM_MAX_CTXBITMAP ) {
+ down(&dev->struct_sem);
+ clear_bit( ctx_handle, dev->ctx_bitmap );
+ dev->context_sareas[ctx_handle] = NULL;
+ up(&dev->struct_sem);
+ return;
+ }
+failed:
+ DRM_ERROR( "Attempt to free invalid context handle: %d\n",
+ ctx_handle );
+ return;
+}
+
+int DRM(ctxbitmap_next)( drm_device_t *dev )
+{
+ int bit;
+
+ if(!dev->ctx_bitmap) return -1;
+
+ down(&dev->struct_sem);
+ bit = find_first_zero_bit( dev->ctx_bitmap, DRM_MAX_CTXBITMAP );
+ if ( bit < DRM_MAX_CTXBITMAP ) {
+ set_bit( bit, dev->ctx_bitmap );
+ DRM_DEBUG( "drm_ctxbitmap_next bit : %d\n", bit );
+ if((bit+1) > dev->max_context) {
+ dev->max_context = (bit+1);
+ if(dev->context_sareas) {
+ dev->context_sareas = DRM(realloc)(
+ dev->context_sareas,
+ (dev->max_context - 1) *
+ sizeof(*dev->context_sareas),
+ dev->max_context *
+ sizeof(*dev->context_sareas),
+ DRM_MEM_MAPS);
+ dev->context_sareas[bit] = NULL;
+ } else {
+ /* max_context == 1 at this point */
+ dev->context_sareas = DRM(alloc)(
+ dev->max_context *
+ sizeof(*dev->context_sareas),
+ DRM_MEM_MAPS);
+ dev->context_sareas[bit] = NULL;
+ }
+ }
+ up(&dev->struct_sem);
+ return bit;
+ }
+ up(&dev->struct_sem);
+ return -1;
+}
+
+int DRM(ctxbitmap_init)( drm_device_t *dev )
+{
+ int i;
+ int temp;
+
+ down(&dev->struct_sem);
+ dev->ctx_bitmap = (unsigned long *) DRM(alloc)( PAGE_SIZE,
+ DRM_MEM_CTXBITMAP );
+ if ( dev->ctx_bitmap == NULL ) {
+ up(&dev->struct_sem);
+ return -ENOMEM;
+ }
+ memset( (void *)dev->ctx_bitmap, 0, PAGE_SIZE );
+ dev->context_sareas = NULL;
+ dev->max_context = -1;
+ up(&dev->struct_sem);
+
+ for ( i = 0 ; i < DRM_RESERVED_CONTEXTS ; i++ ) {
+ temp = DRM(ctxbitmap_next)( dev );
+ DRM_DEBUG( "drm_ctxbitmap_init : %d\n", temp );
+ }
+
+ return 0;
+}
+
+void DRM(ctxbitmap_cleanup)( drm_device_t *dev )
+{
+ down(&dev->struct_sem);
+ if( dev->context_sareas ) DRM(free)( dev->context_sareas,
+ sizeof(*dev->context_sareas) *
+ dev->max_context,
+ DRM_MEM_MAPS );
+ DRM(free)( (void *)dev->ctx_bitmap, PAGE_SIZE, DRM_MEM_CTXBITMAP );
+ up(&dev->struct_sem);
+}
+
+/* ================================================================
+ * Per Context SAREA Support
+ */
+
+int DRM(getsareactx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_priv_map_t request;
+ drm_map_t *map;
+
+ if (copy_from_user(&request,
+ (drm_ctx_priv_map_t *)arg,
+ sizeof(request)))
+ return -EFAULT;
+
+ down(&dev->struct_sem);
+ if ((int)request.ctx_id >= dev->max_context) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+
+ map = dev->context_sareas[request.ctx_id];
+ up(&dev->struct_sem);
+
+ request.handle = map->handle;
+ if (copy_to_user((drm_ctx_priv_map_t *)arg, &request, sizeof(request)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(setsareactx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_priv_map_t request;
+ drm_map_t *map = NULL;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+
+ if (copy_from_user(&request,
+ (drm_ctx_priv_map_t *)arg,
+ sizeof(request)))
+ return -EFAULT;
+
+ down(&dev->struct_sem);
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *)list;
+ if(r_list->map &&
+ r_list->map->handle == request.handle) break;
+ }
+ if (list == &(dev->maplist->head)) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ map = r_list->map;
+ up(&dev->struct_sem);
+
+ if (!map) return -EINVAL;
+
+ down(&dev->struct_sem);
+ if ((int)request.ctx_id >= dev->max_context) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ dev->context_sareas[request.ctx_id] = map;
+ up(&dev->struct_sem);
+ return 0;
+}
+
+/* ================================================================
+ * The actual DRM context handling routines
+ */
+
+int DRM(context_switch)( drm_device_t *dev, int old, int new )
+{
+ char buf[64];
+
+ if ( test_and_set_bit( 0, &dev->context_flag ) ) {
+ DRM_ERROR( "Reentering -- FIXME\n" );
+ return -EBUSY;
+ }
+
+#if __HAVE_DMA_HISTOGRAM
+ dev->ctx_start = get_cycles();
+#endif
+
+ DRM_DEBUG( "Context switch from %d to %d\n", old, new );
+
+ if ( new == dev->last_context ) {
+ clear_bit( 0, &dev->context_flag );
+ return 0;
+ }
+
+ if ( DRM(flags) & DRM_FLAG_NOCTX ) {
+ DRM(context_switch_complete)( dev, new );
+ } else {
+ sprintf( buf, "C %d %d\n", old, new );
+ DRM(write_string)( dev, buf );
+ }
+
+ return 0;
+}
+
+int DRM(context_switch_complete)( drm_device_t *dev, int new )
+{
+ dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
+ dev->last_switch = jiffies;
+
+ if ( !_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) ) {
+ DRM_ERROR( "Lock isn't held after context switch\n" );
+ }
+
+ /* If a context switch is ever initiated
+ when the kernel holds the lock, release
+ that lock here. */
+#if __HAVE_DMA_HISTOGRAM
+ atomic_inc( &dev->histo.ctx[DRM(histogram_slot)(get_cycles()
+ - dev->ctx_start)] );
+
+#endif
+ clear_bit( 0, &dev->context_flag );
+ wake_up( &dev->context_wait );
+
+ return 0;
+}
+
+int DRM(resctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_ctx_res_t res;
+ drm_ctx_t ctx;
+ int i;
+
+ if ( copy_from_user( &res, (drm_ctx_res_t *)arg, sizeof(res) ) )
+ return -EFAULT;
+
+ if ( res.count >= DRM_RESERVED_CONTEXTS ) {
+ memset( &ctx, 0, sizeof(ctx) );
+ for ( i = 0 ; i < DRM_RESERVED_CONTEXTS ; i++ ) {
+ ctx.handle = i;
+ if ( copy_to_user( &res.contexts[i],
+ &i, sizeof(i) ) )
+ return -EFAULT;
+ }
+ }
+ res.count = DRM_RESERVED_CONTEXTS;
+
+ if ( copy_to_user( (drm_ctx_res_t *)arg, &res, sizeof(res) ) )
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(addctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ ctx.handle = DRM(ctxbitmap_next)( dev );
+ if ( ctx.handle == DRM_KERNEL_CONTEXT ) {
+ /* Skip kernel's context and get a new one. */
+ ctx.handle = DRM(ctxbitmap_next)( dev );
+ }
+ DRM_DEBUG( "%d\n", ctx.handle );
+ if ( ctx.handle == -1 ) {
+ DRM_DEBUG( "Not enough free contexts.\n" );
+ /* Should this return -EBUSY instead? */
+ return -ENOMEM;
+ }
+
+ if ( copy_to_user( (drm_ctx_t *)arg, &ctx, sizeof(ctx) ) )
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(modctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ /* This does nothing */
+ return 0;
+}
+
+int DRM(getctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t*)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ /* This is 0, because we don't handle any context flags */
+ ctx.flags = 0;
+
+ if ( copy_to_user( (drm_ctx_t*)arg, &ctx, sizeof(ctx) ) )
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(switchctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ DRM_DEBUG( "%d\n", ctx.handle );
+ return DRM(context_switch)( dev, dev->last_context, ctx.handle );
+}
+
+int DRM(newctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ DRM_DEBUG( "%d\n", ctx.handle );
+ DRM(context_switch_complete)( dev, ctx.handle );
+
+ return 0;
+}
+
+int DRM(rmctx)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if ( copy_from_user( &ctx, (drm_ctx_t *)arg, sizeof(ctx) ) )
+ return -EFAULT;
+
+ DRM_DEBUG( "%d\n", ctx.handle );
+ if ( ctx.handle == DRM_KERNEL_CONTEXT + 1 ) {
+ priv->remove_auth_on_close = 1;
+ }
+ if ( ctx.handle != DRM_KERNEL_CONTEXT ) {
+ DRM(ctxbitmap_free)( dev, ctx.handle );
+ }
+
+ return 0;
+}
+
+
+#else /* __HAVE_CTX_BITMAP */
+
+/* ================================================================
+ * Old-style context support
+ */
+
+
+int DRM(context_switch)(drm_device_t *dev, int old, int new)
+{
+ char buf[64];
+ drm_queue_t *q;
+
+#if 0
+ atomic_inc(&dev->total_ctx);
+#endif
+
+ if (test_and_set_bit(0, &dev->context_flag)) {
+ DRM_ERROR("Reentering -- FIXME\n");
+ return -EBUSY;
+ }
+
+#if __HAVE_DMA_HISTOGRAM
+ dev->ctx_start = get_cycles();
+#endif
+
+ DRM_DEBUG("Context switch from %d to %d\n", old, new);
+
+ if (new >= dev->queue_count) {
+ clear_bit(0, &dev->context_flag);
+ return -EINVAL;
+ }
+
+ if (new == dev->last_context) {
+ clear_bit(0, &dev->context_flag);
+ return 0;
+ }
+
+ q = dev->queuelist[new];
+ atomic_inc(&q->use_count);
+ if (atomic_read(&q->use_count) == 1) {
+ atomic_dec(&q->use_count);
+ clear_bit(0, &dev->context_flag);
+ return -EINVAL;
+ }
+
+ if (DRM(flags) & DRM_FLAG_NOCTX) {
+ DRM(context_switch_complete)(dev, new);
+ } else {
+ sprintf(buf, "C %d %d\n", old, new);
+ DRM(write_string)(dev, buf);
+ }
+
+ atomic_dec(&q->use_count);
+
+ return 0;
+}
+
+int DRM(context_switch_complete)(drm_device_t *dev, int new)
+{
+ drm_device_dma_t *dma = dev->dma;
+
+ dev->last_context = new; /* PRE/POST: This is the _only_ writer. */
+ dev->last_switch = jiffies;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("Lock isn't held after context switch\n");
+ }
+
+ if (!dma || !(dma->next_buffer && dma->next_buffer->while_locked)) {
+ if (DRM(lock_free)(dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT)) {
+ DRM_ERROR("Cannot free lock\n");
+ }
+ }
+
+#if __HAVE_DMA_HISTOGRAM
+ atomic_inc(&dev->histo.ctx[DRM(histogram_slot)(get_cycles()
+ - dev->ctx_start)]);
+
+#endif
+ clear_bit(0, &dev->context_flag);
+ wake_up_interruptible(&dev->context_wait);
+
+ return 0;
+}
+
+static int DRM(init_queue)(drm_device_t *dev, drm_queue_t *q, drm_ctx_t *ctx)
+{
+ DRM_DEBUG("\n");
+
+ if (atomic_read(&q->use_count) != 1
+ || atomic_read(&q->finalization)
+ || atomic_read(&q->block_count)) {
+ DRM_ERROR("New queue is already in use: u%d f%d b%d\n",
+ atomic_read(&q->use_count),
+ atomic_read(&q->finalization),
+ atomic_read(&q->block_count));
+ }
+
+ atomic_set(&q->finalization, 0);
+ atomic_set(&q->block_count, 0);
+ atomic_set(&q->block_read, 0);
+ atomic_set(&q->block_write, 0);
+ atomic_set(&q->total_queued, 0);
+ atomic_set(&q->total_flushed, 0);
+ atomic_set(&q->total_locks, 0);
+
+ init_waitqueue_head(&q->write_queue);
+ init_waitqueue_head(&q->read_queue);
+ init_waitqueue_head(&q->flush_queue);
+
+ q->flags = ctx->flags;
+
+ DRM(waitlist_create)(&q->waitlist, dev->dma->buf_count);
+
+ return 0;
+}
+
+
+/* drm_alloc_queue:
+PRE: 1) dev->queuelist[0..dev->queue_count] is allocated and will not
+ disappear (so all deallocation must be done after IOCTLs are off)
+ 2) dev->queue_count < dev->queue_slots
+ 3) dev->queuelist[i].use_count == 0 and
+ dev->queuelist[i].finalization == 0 if i not in use
+POST: 1) dev->queuelist[i].use_count == 1
+ 2) dev->queue_count < dev->queue_slots */
+
+static int DRM(alloc_queue)(drm_device_t *dev)
+{
+ int i;
+ drm_queue_t *queue;
+ int oldslots;
+ int newslots;
+ /* Check for a free queue */
+ for (i = 0; i < dev->queue_count; i++) {
+ atomic_inc(&dev->queuelist[i]->use_count);
+ if (atomic_read(&dev->queuelist[i]->use_count) == 1
+ && !atomic_read(&dev->queuelist[i]->finalization)) {
+ DRM_DEBUG("%d (free)\n", i);
+ return i;
+ }
+ atomic_dec(&dev->queuelist[i]->use_count);
+ }
+ /* Allocate a new queue */
+ down(&dev->struct_sem);
+
+ queue = gamma_alloc(sizeof(*queue), DRM_MEM_QUEUES);
+ memset(queue, 0, sizeof(*queue));
+ atomic_set(&queue->use_count, 1);
+
+ ++dev->queue_count;
+ if (dev->queue_count >= dev->queue_slots) {
+ oldslots = dev->queue_slots * sizeof(*dev->queuelist);
+ if (!dev->queue_slots) dev->queue_slots = 1;
+ dev->queue_slots *= 2;
+ newslots = dev->queue_slots * sizeof(*dev->queuelist);
+
+ dev->queuelist = DRM(realloc)(dev->queuelist,
+ oldslots,
+ newslots,
+ DRM_MEM_QUEUES);
+ if (!dev->queuelist) {
+ up(&dev->struct_sem);
+ DRM_DEBUG("out of memory\n");
+ return -ENOMEM;
+ }
+ }
+ dev->queuelist[dev->queue_count-1] = queue;
+
+ up(&dev->struct_sem);
+ DRM_DEBUG("%d (new)\n", dev->queue_count - 1);
+ return dev->queue_count - 1;
+}
+
+int DRM(resctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_ctx_res_t res;
+ drm_ctx_t ctx;
+ int i;
+
+ DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS);
+ if (copy_from_user(&res, (drm_ctx_res_t *)arg, sizeof(res)))
+ return -EFAULT;
+ if (res.count >= DRM_RESERVED_CONTEXTS) {
+ memset(&ctx, 0, sizeof(ctx));
+ for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) {
+ ctx.handle = i;
+ if (copy_to_user(&res.contexts[i],
+ &i,
+ sizeof(i)))
+ return -EFAULT;
+ }
+ }
+ res.count = DRM_RESERVED_CONTEXTS;
+ if (copy_to_user((drm_ctx_res_t *)arg, &res, sizeof(res)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(addctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+ if ((ctx.handle = DRM(alloc_queue)(dev)) == DRM_KERNEL_CONTEXT) {
+ /* Init kernel's context and get a new one. */
+ DRM(init_queue)(dev, dev->queuelist[ctx.handle], &ctx);
+ ctx.handle = DRM(alloc_queue)(dev);
+ }
+ DRM(init_queue)(dev, dev->queuelist[ctx.handle], &ctx);
+ DRM_DEBUG("%d\n", ctx.handle);
+ if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(modctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+ drm_queue_t *q;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+
+ DRM_DEBUG("%d\n", ctx.handle);
+
+ if (ctx.handle < 0 || ctx.handle >= dev->queue_count) return -EINVAL;
+ q = dev->queuelist[ctx.handle];
+
+ atomic_inc(&q->use_count);
+ if (atomic_read(&q->use_count) == 1) {
+ /* No longer in use */
+ atomic_dec(&q->use_count);
+ return -EINVAL;
+ }
+
+ if (DRM_BUFCOUNT(&q->waitlist)) {
+ atomic_dec(&q->use_count);
+ return -EBUSY;
+ }
+
+ q->flags = ctx.flags;
+
+ atomic_dec(&q->use_count);
+ return 0;
+}
+
+int DRM(getctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+ drm_queue_t *q;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+
+ DRM_DEBUG("%d\n", ctx.handle);
+
+ if (ctx.handle >= dev->queue_count) return -EINVAL;
+ q = dev->queuelist[ctx.handle];
+
+ atomic_inc(&q->use_count);
+ if (atomic_read(&q->use_count) == 1) {
+ /* No longer in use */
+ atomic_dec(&q->use_count);
+ return -EINVAL;
+ }
+
+ ctx.flags = q->flags;
+ atomic_dec(&q->use_count);
+
+ if (copy_to_user((drm_ctx_t *)arg, &ctx, sizeof(ctx)))
+ return -EFAULT;
+
+ return 0;
+}
+
+int DRM(switchctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+ DRM_DEBUG("%d\n", ctx.handle);
+ return DRM(context_switch)(dev, dev->last_context, ctx.handle);
+}
+
+int DRM(newctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+ DRM_DEBUG("%d\n", ctx.handle);
+ DRM(context_switch_complete)(dev, ctx.handle);
+
+ return 0;
+}
+
+int DRM(rmctx)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ctx_t ctx;
+ drm_queue_t *q;
+ drm_buf_t *buf;
+
+ if (copy_from_user(&ctx, (drm_ctx_t *)arg, sizeof(ctx)))
+ return -EFAULT;
+ DRM_DEBUG("%d\n", ctx.handle);
+
+ if (ctx.handle >= dev->queue_count) return -EINVAL;
+ q = dev->queuelist[ctx.handle];
+
+ atomic_inc(&q->use_count);
+ if (atomic_read(&q->use_count) == 1) {
+ /* No longer in use */
+ atomic_dec(&q->use_count);
+ return -EINVAL;
+ }
+
+ atomic_inc(&q->finalization); /* Mark queue in finalization state */
+ atomic_sub(2, &q->use_count); /* Mark queue as unused (pending
+ finalization) */
+
+ while (test_and_set_bit(0, &dev->interrupt_flag)) {
+ schedule();
+ if (signal_pending(current)) {
+ clear_bit(0, &dev->interrupt_flag);
+ return -EINTR;
+ }
+ }
+ /* Remove queued buffers */
+ while ((buf = DRM(waitlist_get)(&q->waitlist))) {
+ DRM(free_buffer)(dev, buf);
+ }
+ clear_bit(0, &dev->interrupt_flag);
+
+ /* Wakeup blocked processes */
+ wake_up_interruptible(&q->read_queue);
+ wake_up_interruptible(&q->write_queue);
+ wake_up_interruptible(&q->flush_queue);
+
+ /* Finalization over. Queue is made
+ available when both use_count and
+ finalization become 0, which won't
+ happen until all the waiting processes
+ stop waiting. */
+ atomic_dec(&q->finalization);
+ return 0;
+}
+
+#endif /* __HAVE_CTX_BITMAP */
diff --git a/linux/drm_drv.h b/linux/drm_drv.h
new file mode 100644
index 000000000..7447ca6d4
--- /dev/null
+++ b/linux/drm_drv.h
@@ -0,0 +1,938 @@
+/* drm_drv.h -- Generic driver 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>
+ */
+
+/*
+ * To use this template, you must at least define the following (samples
+ * given for the MGA driver):
+ *
+ * #define DRIVER_AUTHOR "VA Linux Systems, Inc."
+ *
+ * #define DRIVER_NAME "mga"
+ * #define DRIVER_DESC "Matrox G200/G400"
+ * #define DRIVER_DATE "20001127"
+ *
+ * #define DRIVER_MAJOR 2
+ * #define DRIVER_MINOR 0
+ * #define DRIVER_PATCHLEVEL 2
+ *
+ * #define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( mga_ioctls )
+ *
+ * #define DRM(x) mga_##x
+ */
+
+#ifndef __MUST_HAVE_AGP
+#define __MUST_HAVE_AGP 0
+#endif
+#ifndef __HAVE_CTX_BITMAP
+#define __HAVE_CTX_BITMAP 0
+#endif
+#ifndef __HAVE_DMA_IRQ
+#define __HAVE_DMA_IRQ 0
+#endif
+#ifndef __HAVE_DMA_QUEUE
+#define __HAVE_DMA_QUEUE 0
+#endif
+#ifndef __HAVE_MULTIPLE_DMA_QUEUES
+#define __HAVE_MULTIPLE_DMA_QUEUES 0
+#endif
+#ifndef __HAVE_DMA_SCHEDULE
+#define __HAVE_DMA_SCHEDULE 0
+#endif
+#ifndef __HAVE_DMA_FLUSH
+#define __HAVE_DMA_FLUSH 0
+#endif
+#ifndef __HAVE_DMA_READY
+#define __HAVE_DMA_READY 0
+#endif
+#ifndef __HAVE_DMA_QUIESCENT
+#define __HAVE_DMA_QUIESCENT 0
+#endif
+#ifndef __HAVE_RELEASE
+#define __HAVE_RELEASE 0
+#endif
+#ifndef __HAVE_COUNTERS
+#define __HAVE_COUNTERS 0
+#endif
+
+#ifndef DRIVER_PREINIT
+#define DRIVER_PREINIT()
+#endif
+#ifndef DRIVER_POSTINIT
+#define DRIVER_POSTINIT()
+#endif
+#ifndef DRIVER_PRERELEASE
+#define DRIVER_PRERELEASE()
+#endif
+#ifndef DRIVER_PRETAKEDOWN
+#define DRIVER_PRETAKEDOWN()
+#endif
+#ifndef DRIVER_IOCTLS
+#define DRIVER_IOCTLS
+#endif
+
+
+static drm_device_t DRM(device);
+static int DRM(minor);
+
+static struct file_operations DRM(fops) = {
+#if LINUX_VERSION_CODE >= 0x020400
+ /* This started being used during 2.4.0-test */
+ owner: THIS_MODULE,
+#endif
+ open: DRM(open),
+ flush: DRM(flush),
+ release: DRM(release),
+ ioctl: DRM(ioctl),
+ mmap: DRM(mmap),
+ read: DRM(read),
+ fasync: DRM(fasync),
+ poll: DRM(poll),
+};
+
+
+static drm_ioctl_desc_t DRM(ioctls)[] = {
+ [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { DRM(version), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { DRM(getunique), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { DRM(getmagic), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_busid), 0, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { DRM(getmap), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { DRM(getclient), 0, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { DRM(getstats), 0, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { DRM(setunique), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { DRM(block), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { DRM(unblock), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { DRM(authmagic), 1, 1 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { DRM(addmap), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { DRM(rmmap), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { DRM(addctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { DRM(rmctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { DRM(modctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { DRM(getctx), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { DRM(switchctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { DRM(newctx), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { DRM(resctx), 1, 0 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { DRM(adddraw), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { DRM(rmdraw), 1, 1 },
+
+ [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { DRM(lock), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { DRM(unlock), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { DRM(finish), 1, 0 },
+
+#if __HAVE_DMA
+ [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { DRM(addbufs), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { DRM(markbufs), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { DRM(infobufs), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { DRM(mapbufs), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { DRM(freebufs), 1, 0 },
+
+ /* The DRM_IOCTL_DMA ioctl should be defined by the driver.
+ */
+#if __HAVE_DMA_IRQ
+ [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { DRM(control), 1, 1 },
+#endif
+#endif
+
+#if __REALLY_HAVE_AGP
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { DRM(agp_acquire), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { DRM(agp_release), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { DRM(agp_enable), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { DRM(agp_info), 1, 0 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { DRM(agp_alloc), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { DRM(agp_free), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { DRM(agp_bind), 1, 1 },
+ [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { DRM(agp_unbind), 1, 1 },
+#endif
+
+ DRIVER_IOCTLS
+};
+
+#define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( DRM(ioctls) )
+
+#ifdef MODULE
+static char *drm_opts = NULL;
+#endif
+
+MODULE_AUTHOR( DRIVER_AUTHOR );
+MODULE_DESCRIPTION( DRIVER_DESC );
+MODULE_PARM( drm_opts, "s" );
+
+#ifndef MODULE
+/* DRM(options) is called by the kernel to parse command-line options
+ * passed via the boot-loader (e.g., LILO). It calls the insmod option
+ * routine, drm_parse_drm.
+ */
+
+static int __init DRM(options)( char *str )
+{
+ DRM(parse_options)( str );
+ return 1;
+}
+
+__setup( DRIVER_NAME "=", DRM(options) );
+#endif
+
+static int DRM(setup)( drm_device_t *dev )
+{
+ int i;
+
+ atomic_set( &dev->ioctl_count, 0 );
+ atomic_set( &dev->vma_count, 0 );
+ dev->buf_use = 0;
+ atomic_set( &dev->buf_alloc, 0 );
+
+#if __HAVE_DMA
+ i = DRM(dma_setup)( dev );
+ if ( i < 0 )
+ return i;
+#endif
+
+ dev->counters = 6 + __HAVE_COUNTERS;
+ dev->types[0] = _DRM_STAT_LOCK;
+ dev->types[1] = _DRM_STAT_OPENS;
+ dev->types[2] = _DRM_STAT_CLOSES;
+ dev->types[3] = _DRM_STAT_IOCTLS;
+ dev->types[4] = _DRM_STAT_LOCKS;
+ dev->types[5] = _DRM_STAT_UNLOCKS;
+#ifdef __HAVE_COUNTER6
+ dev->types[6] = __HAVE_COUNTER6;
+#endif
+#ifdef __HAVE_COUNTER7
+ dev->types[7] = __HAVE_COUNTER7;
+#endif
+#ifdef __HAVE_COUNTER8
+ dev->types[8] = __HAVE_COUNTER8;
+#endif
+#ifdef __HAVE_COUNTER9
+ dev->types[9] = __HAVE_COUNTER9;
+#endif
+#ifdef __HAVE_COUNTER10
+ dev->types[10] = __HAVE_COUNTER10;
+#endif
+#ifdef __HAVE_COUNTER11
+ dev->types[11] = __HAVE_COUNTER11;
+#endif
+#ifdef __HAVE_COUNTER12
+ dev->types[12] = __HAVE_COUNTER12;
+#endif
+#ifdef __HAVE_COUNTER13
+ dev->types[13] = __HAVE_COUNTER13;
+#endif
+#ifdef __HAVE_COUNTER14
+ dev->types[14] = __HAVE_COUNTER14;
+#endif
+#ifdef __HAVE_COUNTER15
+ dev->types[14] = __HAVE_COUNTER14;
+#endif
+
+ for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ )
+ atomic_set( &dev->counts[i], 0 );
+
+ for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
+ dev->magiclist[i].head = NULL;
+ dev->magiclist[i].tail = NULL;
+ }
+
+ dev->maplist = DRM(alloc)(sizeof(*dev->maplist),
+ DRM_MEM_MAPS);
+ if(dev->maplist == NULL) return -ENOMEM;
+ memset(dev->maplist, 0, sizeof(*dev->maplist));
+ INIT_LIST_HEAD(&dev->maplist->head);
+ dev->map_count = 0;
+
+ dev->vmalist = NULL;
+ dev->lock.hw_lock = NULL;
+ init_waitqueue_head( &dev->lock.lock_queue );
+ dev->queue_count = 0;
+ dev->queue_reserved = 0;
+ dev->queue_slots = 0;
+ dev->queuelist = NULL;
+ dev->irq = 0;
+ dev->context_flag = 0;
+ dev->interrupt_flag = 0;
+ dev->dma_flag = 0;
+ dev->last_context = 0;
+ dev->last_switch = 0;
+ dev->last_checked = 0;
+ init_timer( &dev->timer );
+ init_waitqueue_head( &dev->context_wait );
+
+ dev->ctx_start = 0;
+ dev->lck_start = 0;
+
+ dev->buf_rp = dev->buf;
+ dev->buf_wp = dev->buf;
+ dev->buf_end = dev->buf + DRM_BSZ;
+ dev->buf_async = NULL;
+ init_waitqueue_head( &dev->buf_readers );
+ init_waitqueue_head( &dev->buf_writers );
+
+ DRM_DEBUG( "\n" );
+
+ /* The kernel's context could be created here, but is now created
+ * in drm_dma_enqueue. This is more resource-efficient for
+ * hardware that does not do DMA, but may mean that
+ * drm_select_queue fails between the time the interrupt is
+ * initialized and the time the queues are initialized.
+ */
+ return 0;
+}
+
+
+static int DRM(takedown)( drm_device_t *dev )
+{
+ drm_magic_entry_t *pt, *next;
+ drm_map_t *map;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+ drm_vma_entry_t *vma, *vma_next;
+ int i;
+
+ DRM_DEBUG( "\n" );
+
+ DRIVER_PRETAKEDOWN();
+#if __HAVE_DMA_IRQ
+ if ( dev->irq ) DRM(irq_uninstall)( dev );
+#endif
+
+ down( &dev->struct_sem );
+ del_timer( &dev->timer );
+
+ if ( dev->devname ) {
+ DRM(free)( dev->devname, strlen( dev->devname ) + 1,
+ DRM_MEM_DRIVER );
+ dev->devname = NULL;
+ }
+
+ if ( dev->unique ) {
+ DRM(free)( dev->unique, strlen( dev->unique ) + 1,
+ DRM_MEM_DRIVER );
+ dev->unique = NULL;
+ dev->unique_len = 0;
+ }
+ /* Clear pid list */
+ for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
+ for ( pt = dev->magiclist[i].head ; pt ; pt = next ) {
+ next = pt->next;
+ DRM(free)( pt, sizeof(*pt), DRM_MEM_MAGIC );
+ }
+ dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
+ }
+
+#if __REALLY_HAVE_AGP
+ /* Clear AGP information */
+ if ( dev->agp ) {
+ drm_agp_mem_t *entry;
+ drm_agp_mem_t *nexte;
+
+ /* Remove AGP resources, but leave dev->agp
+ intact until drv_cleanup is called. */
+ for ( entry = dev->agp->memory ; entry ; entry = nexte ) {
+ nexte = entry->next;
+ if ( entry->bound ) DRM(unbind_agp)( entry->memory );
+ DRM(free_agp)( entry->memory, entry->pages );
+ DRM(free)( entry, sizeof(*entry), DRM_MEM_AGPLISTS );
+ }
+ dev->agp->memory = NULL;
+
+ if ( dev->agp->acquired ) DRM(agp_do_release)();
+
+ dev->agp->acquired = 0;
+ dev->agp->enabled = 0;
+ }
+#endif
+
+ /* Clear vma list (only built for debugging) */
+ if ( dev->vmalist ) {
+ for ( vma = dev->vmalist ; vma ; vma = vma_next ) {
+ vma_next = vma->next;
+ DRM(free)( vma, sizeof(*vma), DRM_MEM_VMAS );
+ }
+ dev->vmalist = NULL;
+ }
+
+ if( dev->maplist ) {
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *)list;
+ map = r_list->map;
+ DRM(free)(r_list, sizeof(*r_list), DRM_MEM_MAPS);
+ if(!map) continue;
+
+ switch ( map->type ) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if __REALLY_HAVE_MTRR
+ if ( map->mtrr >= 0 ) {
+ int retcode;
+ retcode = mtrr_del( map->mtrr,
+ map->offset,
+ map->size );
+ DRM_DEBUG( "mtrr_del=%d\n", retcode );
+ }
+#endif
+ DRM(ioremapfree)( map->handle, map->size );
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+
+ case _DRM_AGP:
+ /* Do nothing here, because this is all
+ * handled in the AGP/GART driver.
+ */
+ break;
+ }
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ }
+ DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
+ dev->maplist = NULL;
+ }
+
+#if __HAVE_DMA_QUEUE || __HAVE_MULTIPLE_DMA_QUEUES
+ if ( dev->queuelist ) {
+ for ( i = 0 ; i < dev->queue_count ; i++ ) {
+ DRM(waitlist_destroy)( &dev->queuelist[i]->waitlist );
+ if ( dev->queuelist[i] ) {
+ DRM(free)( dev->queuelist[i],
+ sizeof(*dev->queuelist[0]),
+ DRM_MEM_QUEUES );
+ dev->queuelist[i] = NULL;
+ }
+ }
+ DRM(free)( dev->queuelist,
+ dev->queue_slots * sizeof(*dev->queuelist),
+ DRM_MEM_QUEUES );
+ dev->queuelist = NULL;
+ }
+ dev->queue_count = 0;
+#endif
+
+#if __HAVE_DMA
+ DRM(dma_takedown)( dev );
+#endif
+ if ( dev->lock.hw_lock ) {
+ dev->lock.hw_lock = NULL; /* SHM removed */
+ dev->lock.pid = 0;
+ wake_up_interruptible( &dev->lock.lock_queue );
+ }
+ up( &dev->struct_sem );
+
+ return 0;
+}
+
+/* drm_init is called via init_module at module load time, or via
+ * linux/init/main.c (this is not currently supported).
+ */
+static int __init drm_init( void )
+{
+ drm_device_t *dev = &DRM(device);
+#if __HAVE_CTX_BITMAP
+ int retcode;
+#endif
+ DRM_DEBUG( "\n" );
+
+ memset( (void *)dev, 0, sizeof(*dev) );
+ dev->count_lock = SPIN_LOCK_UNLOCKED;
+ sema_init( &dev->struct_sem, 1 );
+
+#ifdef MODULE
+ DRM(parse_options)( drm_opts );
+#endif
+ DRIVER_PREINIT();
+
+ DRM(mem_init)();
+
+ if ((DRM(minor) = DRM(stub_register)(DRIVER_NAME, &DRM(fops),dev)) < 0)
+ return -EPERM;
+ dev->device = MKDEV(DRM_MAJOR, DRM(minor) );
+ dev->name = DRIVER_NAME;
+
+#if __REALLY_HAVE_AGP
+ dev->agp = DRM(agp_init)();
+#if __MUST_HAVE_AGP
+ if ( dev->agp == NULL ) {
+ DRM_ERROR( "Cannot initialize the agpgart module.\n" );
+ DRM(stub_unregister)(DRM(minor));
+ DRM(takedown)( dev );
+ return -ENOMEM;
+ }
+#endif
+#if __REALLY_HAVE_MTRR
+ if (dev->agp)
+ dev->agp->agp_mtrr = mtrr_add( dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size*1024*1024,
+ MTRR_TYPE_WRCOMB,
+ 1 );
+#endif
+#endif
+
+#if __HAVE_CTX_BITMAP
+ retcode = DRM(ctxbitmap_init)( dev );
+ if( retcode ) {
+ DRM_ERROR( "Cannot allocate memory for context bitmap.\n" );
+ DRM(stub_unregister)(DRM(minor));
+ DRM(takedown)( dev );
+ return retcode;
+ }
+#endif
+
+ DRIVER_POSTINIT();
+
+ DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d\n",
+ DRIVER_NAME,
+ DRIVER_MAJOR,
+ DRIVER_MINOR,
+ DRIVER_PATCHLEVEL,
+ DRIVER_DATE,
+ DRM(minor) );
+
+ return 0;
+}
+
+/* drm_cleanup is called via cleanup_module at module unload time.
+ */
+static void __exit drm_cleanup( void )
+{
+ drm_device_t *dev = &DRM(device);
+
+ DRM_DEBUG( "\n" );
+
+ if ( DRM(stub_unregister)(DRM(minor)) ) {
+ DRM_ERROR( "Cannot unload module\n" );
+ } else {
+ DRM_INFO( "Module unloaded\n" );
+ }
+#if __HAVE_CTX_BITMAP
+ DRM(ctxbitmap_cleanup)( dev );
+#endif
+
+#if __REALLY_HAVE_AGP && __REALLY_HAVE_MTRR
+ if ( dev->agp && dev->agp->agp_mtrr ) {
+ int retval;
+ retval = mtrr_del( dev->agp->agp_mtrr,
+ dev->agp->agp_info.aper_base,
+ dev->agp->agp_info.aper_size*1024*1024 );
+ DRM_DEBUG( "mtrr_del=%d\n", retval );
+ }
+#endif
+
+ DRM(takedown)( dev );
+
+#if __REALLY_HAVE_AGP
+ if ( dev->agp ) {
+ DRM(agp_uninit)();
+ DRM(free)( dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS );
+ dev->agp = NULL;
+ }
+#endif
+}
+
+module_init( drm_init );
+module_exit( drm_cleanup );
+
+
+int DRM(version)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_version_t version;
+ int len;
+
+ if ( copy_from_user( &version,
+ (drm_version_t *)arg,
+ sizeof(version) ) )
+ return -EFAULT;
+
+#define DRM_COPY( name, value ) \
+ len = strlen( value ); \
+ if ( len > name##_len ) len = name##_len; \
+ name##_len = strlen( value ); \
+ if ( len && name ) { \
+ if ( copy_to_user( name, value, len ) ) \
+ return -EFAULT; \
+ }
+
+ version.version_major = DRIVER_MAJOR;
+ version.version_minor = DRIVER_MINOR;
+ version.version_patchlevel = DRIVER_PATCHLEVEL;
+
+ DRM_COPY( version.name, DRIVER_NAME );
+ DRM_COPY( version.date, DRIVER_DATE );
+ DRM_COPY( version.desc, DRIVER_DESC );
+
+ if ( copy_to_user( (drm_version_t *)arg,
+ &version,
+ sizeof(version) ) )
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(open)( struct inode *inode, struct file *filp )
+{
+ drm_device_t *dev = &DRM(device);
+ int retcode = 0;
+
+ DRM_DEBUG( "open_count = %d\n", dev->open_count );
+
+ retcode = DRM(open_helper)( inode, filp, dev );
+ if ( !retcode ) {
+#if LINUX_VERSION_CODE < 0x020333
+ MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+ atomic_inc( &dev->counts[_DRM_STAT_OPENS] );
+ spin_lock( &dev->count_lock );
+ if ( !dev->open_count++ ) {
+ spin_unlock( &dev->count_lock );
+ return DRM(setup)( dev );
+ }
+ spin_unlock( &dev->count_lock );
+ }
+
+ return retcode;
+}
+
+int DRM(release)( struct inode *inode, struct file *filp )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev;
+ int retcode = 0;
+
+ lock_kernel();
+ dev = priv->dev;
+
+ DRM_DEBUG( "open_count = %d\n", dev->open_count );
+
+ DRIVER_PRERELEASE();
+
+ /* ========================================================
+ * Begin inline drm_release
+ */
+
+ DRM_DEBUG( "pid = %d, device = 0x%x, open_count = %d\n",
+ current->pid, dev->device, dev->open_count );
+
+ if ( dev->lock.hw_lock &&
+ _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) &&
+ dev->lock.pid == current->pid ) {
+ DRM_DEBUG( "Process %d dead, freeing lock for context %d\n",
+ current->pid,
+ _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) );
+#if __HAVE_RELEASE
+ DRIVER_RELEASE();
+#endif
+ DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock) );
+
+ /* FIXME: may require heavy-handed reset of
+ hardware at this point, possibly
+ processed via a callback to the X
+ server. */
+ }
+#if __HAVE_RELEASE
+ else if ( dev->lock.hw_lock ) {
+ /* The lock is required to reclaim buffers */
+ DECLARE_WAITQUEUE( entry, current );
+ add_wait_queue( &dev->lock.lock_queue, &entry );
+ for (;;) {
+ current->state = TASK_INTERRUPTIBLE;
+ if ( !dev->lock.hw_lock ) {
+ /* Device has been unregistered */
+ retcode = -EINTR;
+ break;
+ }
+ if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT ) ) {
+ dev->lock.pid = priv->pid;
+ dev->lock.lock_time = jiffies;
+ atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
+ break; /* Got lock */
+ }
+ /* Contention */
+#if 0
+ atomic_inc( &dev->total_sleeps );
+#endif
+ schedule();
+ if ( signal_pending( current ) ) {
+ retcode = -ERESTARTSYS;
+ break;
+ }
+ }
+ current->state = TASK_RUNNING;
+ remove_wait_queue( &dev->lock.lock_queue, &entry );
+ if( !retcode ) {
+ DRIVER_RELEASE();
+ DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT );
+ }
+ }
+#elif __HAVE_DMA
+ DRM(reclaim_buffers)( dev, priv->pid );
+#endif
+
+ DRM(fasync)( -1, filp, 0 );
+
+ down( &dev->struct_sem );
+ if ( priv->remove_auth_on_close == 1 ) {
+ drm_file_t *temp = dev->file_first;
+ while ( temp ) {
+ temp->authenticated = 0;
+ temp = temp->next;
+ }
+ }
+ if ( priv->prev ) {
+ priv->prev->next = priv->next;
+ } else {
+ dev->file_first = priv->next;
+ }
+ if ( priv->next ) {
+ priv->next->prev = priv->prev;
+ } else {
+ dev->file_last = priv->prev;
+ }
+ up( &dev->struct_sem );
+
+ DRM(free)( priv, sizeof(*priv), DRM_MEM_FILES );
+
+ /* ========================================================
+ * End inline drm_release
+ */
+
+#if LINUX_VERSION_CODE < 0x020333
+ MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+ atomic_inc( &dev->counts[_DRM_STAT_CLOSES] );
+ spin_lock( &dev->count_lock );
+ if ( !--dev->open_count ) {
+ if ( atomic_read( &dev->ioctl_count ) || dev->blocked ) {
+ DRM_ERROR( "Device busy: %d %d\n",
+ atomic_read( &dev->ioctl_count ),
+ dev->blocked );
+ spin_unlock( &dev->count_lock );
+ unlock_kernel();
+ return -EBUSY;
+ }
+ spin_unlock( &dev->count_lock );
+ unlock_kernel();
+ return DRM(takedown)( dev );
+ }
+ spin_unlock( &dev->count_lock );
+
+ unlock_kernel();
+ return retcode;
+}
+
+/* DRM(ioctl) is called whenever a process performs an ioctl on /dev/drm.
+ */
+int DRM(ioctl)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_ioctl_desc_t *ioctl;
+ drm_ioctl_t *func;
+ int nr = DRM_IOCTL_NR(cmd);
+ int retcode = 0;
+
+ atomic_inc( &dev->ioctl_count );
+ atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] );
+ ++priv->ioctl_count;
+
+ DRM_DEBUG( "pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%x, auth=%d\n",
+ current->pid, cmd, nr, dev->device, priv->authenticated );
+
+ if ( nr >= DRIVER_IOCTL_COUNT ) {
+ retcode = -EINVAL;
+ } else {
+ ioctl = &DRM(ioctls)[nr];
+ func = ioctl->func;
+
+ if ( !func ) {
+ DRM_DEBUG( "no function\n" );
+ retcode = -EINVAL;
+ } else if ( ( ioctl->root_only && !capable( CAP_SYS_ADMIN ) )||
+ ( ioctl->auth_needed && !priv->authenticated ) ) {
+ retcode = -EACCES;
+ } else {
+ retcode = func( inode, filp, cmd, arg );
+ }
+ }
+
+ atomic_dec( &dev->ioctl_count );
+ return retcode;
+}
+
+int DRM(lock)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ DECLARE_WAITQUEUE( entry, current );
+ drm_lock_t lock;
+ int ret = 0;
+#if __HAVE_MULTIPLE_DMA_QUEUES
+ drm_queue_t *q;
+#endif
+#if __HAVE_DMA_HISTOGRAM
+ cycles_t start;
+
+ dev->lck_start = start = get_cycles();
+#endif
+
+ if ( copy_from_user( &lock, (drm_lock_t *)arg, sizeof(lock) ) )
+ return -EFAULT;
+
+ if ( lock.context == DRM_KERNEL_CONTEXT ) {
+ DRM_ERROR( "Process %d using kernel context %d\n",
+ current->pid, lock.context );
+ return -EINVAL;
+ }
+
+ DRM_DEBUG( "%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
+ lock.context, current->pid,
+ dev->lock.hw_lock->lock, lock.flags );
+
+#if __HAVE_DMA_QUEUE
+ if ( lock.context < 0 )
+ return -EINVAL;
+#elif __HAVE_MULTIPLE_DMA_QUEUES
+ if ( lock.context < 0 || lock.context >= dev->queue_count )
+ return -EINVAL;
+ q = dev->queuelist[lock.context];
+#endif
+
+#if __HAVE_DMA_FLUSH
+ ret = DRM(flush_block_and_flush)( dev, lock.context, lock.flags );
+#endif
+ if ( !ret ) {
+ add_wait_queue( &dev->lock.lock_queue, &entry );
+ for (;;) {
+ current->state = TASK_INTERRUPTIBLE;
+ if ( !dev->lock.hw_lock ) {
+ /* Device has been unregistered */
+ ret = -EINTR;
+ break;
+ }
+ if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
+ lock.context ) ) {
+ dev->lock.pid = current->pid;
+ dev->lock.lock_time = jiffies;
+ atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
+ break; /* Got lock */
+ }
+
+ /* Contention */
+ schedule();
+ if ( signal_pending( current ) ) {
+ ret = -ERESTARTSYS;
+ break;
+ }
+ }
+ current->state = TASK_RUNNING;
+ remove_wait_queue( &dev->lock.lock_queue, &entry );
+ }
+
+#if __HAVE_DMA_FLUSH
+ DRM(flush_unblock)( dev, lock.context, lock.flags ); /* cleanup phase */
+#endif
+
+ if ( !ret ) {
+ sigemptyset( &dev->sigmask );
+ sigaddset( &dev->sigmask, SIGSTOP );
+ sigaddset( &dev->sigmask, SIGTSTP );
+ sigaddset( &dev->sigmask, SIGTTIN );
+ sigaddset( &dev->sigmask, SIGTTOU );
+ dev->sigdata.context = lock.context;
+ dev->sigdata.lock = dev->lock.hw_lock;
+ block_all_signals( DRM(notifier),
+ &dev->sigdata, &dev->sigmask );
+
+#if __HAVE_DMA_READY
+ if ( lock.flags & _DRM_LOCK_READY ) {
+ DRIVER_DMA_READY();
+ }
+#endif
+#if __HAVE_DMA_QUIESCENT
+ if ( lock.flags & _DRM_LOCK_QUIESCENT ) {
+ DRIVER_DMA_QUIESCENT();
+ }
+#endif
+ }
+
+ DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
+
+#if __HAVE_DMA_HISTOGRAM
+ atomic_inc(&dev->histo.lacq[DRM(histogram_slot)(get_cycles()-start)]);
+#endif
+ return ret;
+}
+
+
+int DRM(unlock)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_lock_t lock;
+
+ if ( copy_from_user( &lock, (drm_lock_t *)arg, sizeof(lock) ) )
+ return -EFAULT;
+
+ if ( lock.context == DRM_KERNEL_CONTEXT ) {
+ DRM_ERROR( "Process %d using kernel context %d\n",
+ current->pid, lock.context );
+ return -EINVAL;
+ }
+
+ atomic_inc( &dev->counts[_DRM_STAT_UNLOCKS] );
+
+ DRM(lock_transfer)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT );
+#if __HAVE_DMA_SCHEDULE
+ DRM(dma_schedule)( dev, 1 );
+#endif
+
+ /* FIXME: Do we ever really need to check this???
+ */
+ if ( 1 /* !dev->context_flag */ ) {
+ if ( DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
+ DRM_KERNEL_CONTEXT ) ) {
+ DRM_ERROR( "\n" );
+ }
+ }
+
+ unblock_all_signals();
+ return 0;
+}
diff --git a/linux/drm_ioctl.h b/linux/drm_ioctl.h
new file mode 100644
index 000000000..2fba6b0c2
--- /dev/null
+++ b/linux/drm_ioctl.h
@@ -0,0 +1,210 @@
+/* drm_ioctl.h -- IOCTL processing for DRM -*- linux-c -*-
+ * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.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
+ * 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>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+int DRM(irq_busid)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_irq_busid_t p;
+ struct pci_dev *dev;
+
+ if (copy_from_user(&p, (drm_irq_busid_t *)arg, sizeof(p)))
+ return -EFAULT;
+ dev = pci_find_slot(p.busnum, PCI_DEVFN(p.devnum, p.funcnum));
+ if (dev) p.irq = dev->irq;
+ else p.irq = 0;
+ DRM_DEBUG("%d:%d:%d => IRQ %d\n",
+ p.busnum, p.devnum, p.funcnum, p.irq);
+ if (copy_to_user((drm_irq_busid_t *)arg, &p, sizeof(p)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(getunique)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_unique_t u;
+
+ if (copy_from_user(&u, (drm_unique_t *)arg, sizeof(u)))
+ return -EFAULT;
+ if (u.unique_len >= dev->unique_len) {
+ if (copy_to_user(u.unique, dev->unique, dev->unique_len))
+ return -EFAULT;
+ }
+ u.unique_len = dev->unique_len;
+ if (copy_to_user((drm_unique_t *)arg, &u, sizeof(u)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(setunique)(struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_unique_t u;
+
+ if (dev->unique_len || dev->unique)
+ return -EBUSY;
+
+ if (copy_from_user(&u, (drm_unique_t *)arg, sizeof(u)))
+ return -EFAULT;
+
+ if (!u.unique_len)
+ return -EINVAL;
+
+ dev->unique_len = u.unique_len;
+ dev->unique = DRM(alloc)(u.unique_len + 1, DRM_MEM_DRIVER);
+ if (copy_from_user(dev->unique, u.unique, dev->unique_len))
+ return -EFAULT;
+ dev->unique[dev->unique_len] = '\0';
+
+ dev->devname = DRM(alloc)(strlen(dev->name) + strlen(dev->unique) + 2,
+ DRM_MEM_DRIVER);
+ sprintf(dev->devname, "%s@%s", dev->name, dev->unique);
+
+ return 0;
+}
+
+
+int DRM(getmap)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_map_t map;
+ drm_map_list_t *r_list = NULL;
+ struct list_head *list;
+ int idx;
+ int i;
+
+ if (copy_from_user(&map, (drm_map_t *)arg, sizeof(map)))
+ return -EFAULT;
+ idx = map.offset;
+
+ down(&dev->struct_sem);
+ if (idx < 0 || idx >= dev->map_count) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+
+ i = 0;
+ list_for_each(list, &dev->maplist->head) {
+ if(i == idx) {
+ r_list = (drm_map_list_t *)list;
+ break;
+ }
+ i++;
+ }
+ if(!r_list || !r_list->map) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+
+ map.offset = r_list->map->offset;
+ map.size = r_list->map->size;
+ map.type = r_list->map->type;
+ map.flags = r_list->map->flags;
+ map.handle = r_list->map->handle;
+ map.mtrr = r_list->map->mtrr;
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_map_t *)arg, &map, sizeof(map))) return -EFAULT;
+ return 0;
+}
+
+int DRM(getclient)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_client_t client;
+ drm_file_t *pt;
+ int idx;
+ int i;
+
+ if (copy_from_user(&client, (drm_client_t *)arg, sizeof(client)))
+ return -EFAULT;
+ idx = client.idx;
+ down(&dev->struct_sem);
+ for (i = 0, pt = dev->file_first; i < idx && pt; i++, pt = pt->next)
+ ;
+
+ if (!pt) {
+ up(&dev->struct_sem);
+ return -EINVAL;
+ }
+ client.auth = pt->authenticated;
+ client.pid = pt->pid;
+ client.uid = pt->uid;
+ client.magic = pt->magic;
+ client.iocs = pt->ioctl_count;
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_client_t *)arg, &client, sizeof(client)))
+ return -EFAULT;
+ return 0;
+}
+
+int DRM(getstats)( struct inode *inode, struct file *filp,
+ unsigned int cmd, unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_stats_t stats;
+ int i;
+
+ memset(&stats, 0, sizeof(stats));
+
+ down(&dev->struct_sem);
+
+ for (i = 0; i < dev->counters; i++) {
+ if (dev->types[i] == _DRM_STAT_LOCK)
+ stats.data[i].value
+ = (dev->lock.hw_lock
+ ? dev->lock.hw_lock->lock : 0);
+ else
+ stats.data[i].value = atomic_read(&dev->counts[i]);
+ stats.data[i].type = dev->types[i];
+ }
+
+ stats.count = dev->counters;
+
+ up(&dev->struct_sem);
+
+ if (copy_to_user((drm_stats_t *)arg, &stats, sizeof(stats)))
+ return -EFAULT;
+ return 0;
+}
diff --git a/linux/drm_proc.h b/linux/drm_proc.h
new file mode 100644
index 000000000..f65f42b71
--- /dev/null
+++ b/linux/drm_proc.h
@@ -0,0 +1,630 @@
+/* drm_proc.h -- /proc support for DRM -*- linux-c -*-
+ * Created: Mon Jan 11 09:48:47 1999 by faith@valinux.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
+ * 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>
+ *
+ * Acknowledgements:
+ * Matthew J Sottek <matthew.j.sottek@intel.com> sent in a patch to fix
+ * the problem with the proc files not outputting all their information.
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+static int DRM(name_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int DRM(vm_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int DRM(clients_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int DRM(queues_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+static int DRM(bufs_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+#if DRM_DEBUG_CODE
+static int DRM(vma_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+#endif
+#if __HAVE_DMA_HISTOGRAM
+static int DRM(histo_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data);
+#endif
+
+struct drm_proc_list {
+ const char *name;
+ int (*f)(char *, char **, off_t, int, int *, void *);
+} DRM(proc_list)[] = {
+ { "name", DRM(name_info) },
+ { "mem", DRM(mem_info) },
+ { "vm", DRM(vm_info) },
+ { "clients", DRM(clients_info) },
+ { "queues", DRM(queues_info) },
+ { "bufs", DRM(bufs_info) },
+#if DRM_DEBUG_CODE
+ { "vma", DRM(vma_info) },
+#endif
+#if __HAVE_DMA_HISTOGRAM
+ { "histo", DRM(histo_info) },
+#endif
+};
+#define DRM_PROC_ENTRIES (sizeof(DRM(proc_list))/sizeof(DRM(proc_list)[0]))
+
+struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
+ struct proc_dir_entry *root,
+ struct proc_dir_entry **dev_root)
+{
+ struct proc_dir_entry *ent;
+ int i, j;
+ char name[64];
+
+ if (!minor) root = create_proc_entry("dri", S_IFDIR, NULL);
+ if (!root) {
+ DRM_ERROR("Cannot create /proc/dri\n");
+ return NULL;
+ }
+
+ sprintf(name, "%d", minor);
+ *dev_root = create_proc_entry(name, S_IFDIR, root);
+ if (!*dev_root) {
+ DRM_ERROR("Cannot create /proc/%s\n", name);
+ return NULL;
+ }
+
+ for (i = 0; i < DRM_PROC_ENTRIES; i++) {
+ ent = create_proc_entry(DRM(proc_list)[i].name,
+ S_IFREG|S_IRUGO, *dev_root);
+ if (!ent) {
+ DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
+ name, DRM(proc_list)[i].name);
+ for (j = 0; j < i; j++)
+ remove_proc_entry(DRM(proc_list)[i].name,
+ *dev_root);
+ remove_proc_entry(name, root);
+ if (!minor) remove_proc_entry("dri", NULL);
+ return NULL;
+ }
+ ent->read_proc = DRM(proc_list)[i].f;
+ ent->data = dev;
+ }
+
+ return root;
+}
+
+
+int DRM(proc_cleanup)(int minor, struct proc_dir_entry *root,
+ struct proc_dir_entry *dev_root)
+{
+ int i;
+ char name[64];
+
+ if (!root || !dev_root) return 0;
+
+ for (i = 0; i < DRM_PROC_ENTRIES; i++)
+ remove_proc_entry(DRM(proc_list)[i].name, dev_root);
+ sprintf(name, "%d", minor);
+ remove_proc_entry(name, root);
+ if (!minor) remove_proc_entry("dri", NULL);
+
+ return 0;
+}
+
+static int DRM(name_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ if (dev->unique) {
+ DRM_PROC_PRINT("%s 0x%x %s\n",
+ dev->name, dev->device, dev->unique);
+ } else {
+ DRM_PROC_PRINT("%s 0x%x\n", dev->name, dev->device);
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(_vm_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_map_t *map;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+
+ /* Hardcoded from _DRM_FRAME_BUFFER,
+ _DRM_REGISTERS, _DRM_SHM, and
+ _DRM_AGP. */
+ const char *types[] = { "FB", "REG", "SHM", "AGP" };
+ const char *type;
+ int i;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT("slot offset size type flags "
+ "address mtrr\n\n");
+ i = 0;
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *)list;
+ map = r_list->map;
+ if(!map) continue;
+ if (map->type < 0 || map->type > 3) type = "??";
+ else type = types[map->type];
+ DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx ",
+ i,
+ map->offset,
+ map->size,
+ type,
+ map->flags,
+ (unsigned long)map->handle);
+ if (map->mtrr < 0) {
+ DRM_PROC_PRINT("none\n");
+ } else {
+ DRM_PROC_PRINT("%4d\n", map->mtrr);
+ }
+ i++;
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(vm_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_vm_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+
+static int DRM(_queues_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ int i;
+ drm_queue_t *q;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT(" ctx/flags use fin"
+ " blk/rw/rwf wait flushed queued"
+ " locks\n\n");
+ for (i = 0; i < dev->queue_count; i++) {
+ q = dev->queuelist[i];
+ atomic_inc(&q->use_count);
+ DRM_PROC_PRINT_RET(atomic_dec(&q->use_count),
+ "%5d/0x%03x %5d %5d"
+ " %5d/%c%c/%c%c%c %5Zd\n",
+ i,
+ q->flags,
+ atomic_read(&q->use_count),
+ atomic_read(&q->finalization),
+ atomic_read(&q->block_count),
+ atomic_read(&q->block_read) ? 'r' : '-',
+ atomic_read(&q->block_write) ? 'w' : '-',
+ waitqueue_active(&q->read_queue) ? 'r':'-',
+ waitqueue_active(&q->write_queue) ? 'w':'-',
+ waitqueue_active(&q->flush_queue) ? 'f':'-',
+ DRM_BUFCOUNT(&q->waitlist));
+ atomic_dec(&q->use_count);
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(queues_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_queues_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+/* drm_bufs_info is called whenever a process reads
+ /dev/dri/<dev>/bufs. */
+
+static int DRM(_bufs_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_device_dma_t *dma = dev->dma;
+ int i;
+
+ if (!dma || offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT(" o size count free segs pages kB\n\n");
+ for (i = 0; i <= DRM_MAX_ORDER; i++) {
+ if (dma->bufs[i].buf_count)
+ DRM_PROC_PRINT("%2d %8d %5d %5d %5d %5d %5ld\n",
+ i,
+ dma->bufs[i].buf_size,
+ dma->bufs[i].buf_count,
+ atomic_read(&dma->bufs[i]
+ .freelist.count),
+ dma->bufs[i].seg_count,
+ dma->bufs[i].seg_count
+ *(1 << dma->bufs[i].page_order),
+ (dma->bufs[i].seg_count
+ * (1 << dma->bufs[i].page_order))
+ * PAGE_SIZE / 1024);
+ }
+ DRM_PROC_PRINT("\n");
+ for (i = 0; i < dma->buf_count; i++) {
+ if (i && !(i%32)) DRM_PROC_PRINT("\n");
+ DRM_PROC_PRINT(" %d", dma->buflist[i]->list);
+ }
+ DRM_PROC_PRINT("\n");
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(bufs_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_bufs_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+
+static int DRM(_clients_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_file_t *priv;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT("a dev pid uid magic ioctls\n\n");
+ for (priv = dev->file_first; priv; priv = priv->next) {
+ DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
+ priv->authenticated ? 'y' : 'n',
+ priv->minor,
+ priv->pid,
+ priv->uid,
+ priv->magic,
+ priv->ioctl_count);
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(clients_info)(char *buf, char **start, off_t offset,
+ int request, int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_clients_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+
+#if DRM_DEBUG_CODE
+
+#define DRM_VMA_VERBOSE 0
+
+static int DRM(_vma_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_vma_entry_t *pt;
+ struct vm_area_struct *vma;
+#if DRM_VMA_VERBOSE
+ unsigned long i;
+ unsigned long address;
+ pgd_t *pgd;
+ pmd_t *pmd;
+ pte_t *pte;
+#endif
+#if defined(__i386__)
+ unsigned int pgprot;
+#endif
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
+ atomic_read(&dev->vma_count),
+ high_memory, virt_to_phys(high_memory));
+ for (pt = dev->vmalist; pt; pt = pt->next) {
+ if (!(vma = pt->vma)) continue;
+ DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx",
+ pt->pid,
+ vma->vm_start,
+ vma->vm_end,
+ vma->vm_flags & VM_READ ? 'r' : '-',
+ vma->vm_flags & VM_WRITE ? 'w' : '-',
+ vma->vm_flags & VM_EXEC ? 'x' : '-',
+ vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
+ vma->vm_flags & VM_LOCKED ? 'l' : '-',
+ vma->vm_flags & VM_IO ? 'i' : '-',
+ VM_OFFSET(vma));
+
+#if defined(__i386__)
+ pgprot = pgprot_val(vma->vm_page_prot);
+ DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c",
+ pgprot & _PAGE_PRESENT ? 'p' : '-',
+ pgprot & _PAGE_RW ? 'w' : 'r',
+ pgprot & _PAGE_USER ? 'u' : 's',
+ pgprot & _PAGE_PWT ? 't' : 'b',
+ pgprot & _PAGE_PCD ? 'u' : 'c',
+ pgprot & _PAGE_ACCESSED ? 'a' : '-',
+ pgprot & _PAGE_DIRTY ? 'd' : '-',
+ pgprot & _PAGE_PSE ? 'm' : 'k',
+ pgprot & _PAGE_GLOBAL ? 'g' : 'l' );
+#endif
+ DRM_PROC_PRINT("\n");
+#if 0
+ for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) {
+ pgd = pgd_offset(vma->vm_mm, i);
+ pmd = pmd_offset(pgd, i);
+ pte = pte_offset(pmd, i);
+ if (pte_present(*pte)) {
+ address = __pa(pte_page(*pte))
+ + (i & (PAGE_SIZE-1));
+ DRM_PROC_PRINT(" 0x%08lx -> 0x%08lx"
+ " %c%c%c%c%c\n",
+ i,
+ address,
+ pte_read(*pte) ? 'r' : '-',
+ pte_write(*pte) ? 'w' : '-',
+ pte_exec(*pte) ? 'x' : '-',
+ pte_dirty(*pte) ? 'd' : '-',
+ pte_young(*pte) ? 'a' : '-' );
+ } else {
+ DRM_PROC_PRINT(" 0x%08lx\n", i);
+ }
+ }
+#endif
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(vma_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_vma_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+#endif
+
+
+#if __HAVE_DMA_HISTOGRAM
+static int DRM(_histo_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int len = 0;
+ drm_device_dma_t *dma = dev->dma;
+ int i;
+ unsigned long slot_value = DRM_DMA_HISTOGRAM_INITIAL;
+ unsigned long prev_value = 0;
+ drm_buf_t *buffer;
+
+ if (offset > DRM_PROC_LIMIT) {
+ *eof = 1;
+ return 0;
+ }
+
+ *start = &buf[offset];
+ *eof = 0;
+
+ DRM_PROC_PRINT("general statistics:\n");
+ DRM_PROC_PRINT("total %10u\n", atomic_read(&dev->histo.total));
+ DRM_PROC_PRINT("open %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_OPENS]));
+ DRM_PROC_PRINT("close %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_CLOSES]));
+ DRM_PROC_PRINT("ioctl %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_IOCTLS]));
+
+ DRM_PROC_PRINT("\nlock statistics:\n");
+ DRM_PROC_PRINT("locks %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_LOCKS]));
+ DRM_PROC_PRINT("unlocks %10u\n",
+ atomic_read(&dev->counts[_DRM_STAT_UNLOCKS]));
+
+ if (dma) {
+#if 0
+ DRM_PROC_PRINT("\ndma statistics:\n");
+ DRM_PROC_PRINT("prio %10u\n",
+ atomic_read(&dma->total_prio));
+ DRM_PROC_PRINT("bytes %10u\n",
+ atomic_read(&dma->total_bytes));
+ DRM_PROC_PRINT("dmas %10u\n",
+ atomic_read(&dma->total_dmas));
+ DRM_PROC_PRINT("missed:\n");
+ DRM_PROC_PRINT(" dma %10u\n",
+ atomic_read(&dma->total_missed_dma));
+ DRM_PROC_PRINT(" lock %10u\n",
+ atomic_read(&dma->total_missed_lock));
+ DRM_PROC_PRINT(" free %10u\n",
+ atomic_read(&dma->total_missed_free));
+ DRM_PROC_PRINT(" sched %10u\n",
+ atomic_read(&dma->total_missed_sched));
+ DRM_PROC_PRINT("tried %10u\n",
+ atomic_read(&dma->total_tried));
+ DRM_PROC_PRINT("hit %10u\n",
+ atomic_read(&dma->total_hit));
+ DRM_PROC_PRINT("lost %10u\n",
+ atomic_read(&dma->total_lost));
+#endif
+
+ buffer = dma->next_buffer;
+ if (buffer) {
+ DRM_PROC_PRINT("next_buffer %7d\n", buffer->idx);
+ } else {
+ DRM_PROC_PRINT("next_buffer none\n");
+ }
+ buffer = dma->this_buffer;
+ if (buffer) {
+ DRM_PROC_PRINT("this_buffer %7d\n", buffer->idx);
+ } else {
+ DRM_PROC_PRINT("this_buffer none\n");
+ }
+ }
+
+
+ DRM_PROC_PRINT("\nvalues:\n");
+ if (dev->lock.hw_lock) {
+ DRM_PROC_PRINT("lock 0x%08x\n",
+ dev->lock.hw_lock->lock);
+ } else {
+ DRM_PROC_PRINT("lock none\n");
+ }
+ DRM_PROC_PRINT("context_flag 0x%08lx\n", dev->context_flag);
+ DRM_PROC_PRINT("interrupt_flag 0x%08lx\n", dev->interrupt_flag);
+ DRM_PROC_PRINT("dma_flag 0x%08lx\n", dev->dma_flag);
+
+ DRM_PROC_PRINT("queue_count %10d\n", dev->queue_count);
+ DRM_PROC_PRINT("last_context %10d\n", dev->last_context);
+ DRM_PROC_PRINT("last_switch %10lu\n", dev->last_switch);
+ DRM_PROC_PRINT("last_checked %10d\n", dev->last_checked);
+
+
+ DRM_PROC_PRINT("\n q2d d2c c2f"
+ " q2c q2f dma sch"
+ " ctx lacq lhld\n\n");
+ for (i = 0; i < DRM_DMA_HISTOGRAM_SLOTS; i++) {
+ DRM_PROC_PRINT("%s %10lu %10u %10u %10u %10u %10u"
+ " %10u %10u %10u %10u %10u\n",
+ i == DRM_DMA_HISTOGRAM_SLOTS - 1 ? ">=" : "< ",
+ i == DRM_DMA_HISTOGRAM_SLOTS - 1
+ ? prev_value : slot_value ,
+
+ atomic_read(&dev->histo
+ .queued_to_dispatched[i]),
+ atomic_read(&dev->histo
+ .dispatched_to_completed[i]),
+ atomic_read(&dev->histo
+ .completed_to_freed[i]),
+
+ atomic_read(&dev->histo
+ .queued_to_completed[i]),
+ atomic_read(&dev->histo
+ .queued_to_freed[i]),
+ atomic_read(&dev->histo.dma[i]),
+ atomic_read(&dev->histo.schedule[i]),
+ atomic_read(&dev->histo.ctx[i]),
+ atomic_read(&dev->histo.lacq[i]),
+ atomic_read(&dev->histo.lhld[i]));
+ prev_value = slot_value;
+ slot_value = DRM_DMA_HISTOGRAM_NEXT(slot_value);
+ }
+
+ if (len > request + offset) return request;
+ *eof = 1;
+ return len - offset;
+}
+
+static int DRM(histo_info)(char *buf, char **start, off_t offset, int request,
+ int *eof, void *data)
+{
+ drm_device_t *dev = (drm_device_t *)data;
+ int ret;
+
+ down(&dev->struct_sem);
+ ret = DRM(_histo_info)(buf, start, offset, request, eof, data);
+ up(&dev->struct_sem);
+ return ret;
+}
+#endif
diff --git a/linux/drm_vm.h b/linux/drm_vm.h
new file mode 100644
index 000000000..fb51926ba
--- /dev/null
+++ b/linux/drm_vm.h
@@ -0,0 +1,416 @@
+/* drm_vm.h -- Memory mapping for DRM -*- linux-c -*-
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.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
+ * 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>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+struct vm_operations_struct drm_vm_ops = {
+ nopage: DRM(vm_nopage),
+ open: DRM(vm_open),
+ close: DRM(vm_close),
+};
+
+struct vm_operations_struct drm_vm_shm_ops = {
+ nopage: DRM(vm_shm_nopage),
+ open: DRM(vm_open),
+ close: DRM(vm_shm_close),
+};
+
+struct vm_operations_struct drm_vm_dma_ops = {
+ nopage: DRM(vm_dma_nopage),
+ open: DRM(vm_open),
+ close: DRM(vm_close),
+};
+
+#if LINUX_VERSION_CODE < 0x020317
+unsigned long DRM(vm_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#else
+ /* Return type changed in 2.3.23 */
+struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#endif
+{
+ return NOPAGE_SIGBUS; /* Disallow mremap */
+}
+
+#if LINUX_VERSION_CODE < 0x020317
+unsigned long DRM(vm_shm_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#else
+ /* Return type changed in 2.3.23 */
+struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#endif
+{
+#if LINUX_VERSION_CODE >= 0x020300
+ drm_map_t *map = (drm_map_t *)vma->vm_private_data;
+#else
+ drm_map_t *map = (drm_map_t *)vma->vm_pte;
+#endif
+ unsigned long physical;
+ unsigned long offset;
+ unsigned long i;
+ pgd_t *pgd;
+ pmd_t *pmd;
+ pte_t *pte;
+
+ if (address > vma->vm_end) return NOPAGE_SIGBUS; /* Disallow mremap */
+ if (!map) return NOPAGE_OOM; /* Nothing allocated */
+
+ offset = address - vma->vm_start;
+ i = (unsigned long)map->handle + offset;
+ /* We have to walk page tables here because we need large SAREA's, and
+ * they need to be virtually contigious in kernel space.
+ */
+ pgd = pgd_offset_k( i );
+ if( !pgd_present( *pgd ) ) return NOPAGE_OOM;
+ pmd = pmd_offset( pgd, i );
+ if( !pmd_present( *pmd ) ) return NOPAGE_OOM;
+ pte = pte_offset( pmd, i );
+ if( !pte_present( *pte ) ) return NOPAGE_OOM;
+ physical = (unsigned long)pte_page( *pte )->virtual;
+ atomic_inc(&virt_to_page(physical)->count); /* Dec. by kernel */
+
+ DRM_DEBUG("0x%08lx => 0x%08lx\n", address, physical);
+#if LINUX_VERSION_CODE < 0x020317
+ return physical;
+#else
+ return virt_to_page(physical);
+#endif
+}
+
+/* Special close routine which deletes map information if we are the last
+ * person to close a mapping and its not in the global maplist.
+ */
+
+void DRM(vm_shm_close)(struct vm_area_struct *vma)
+{
+ drm_file_t *priv = vma->vm_file->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_vma_entry_t *pt, *prev;
+ drm_map_t *map;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+ int found_maps = 0;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+#if LINUX_VERSION_CODE < 0x020333
+ MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+ atomic_dec(&dev->vma_count);
+
+#if LINUX_VERSION_CODE >= 0x020300
+ map = vma->vm_private_data;
+#else
+ map = vma->vm_pte;
+#endif
+
+ down(&dev->struct_sem);
+ for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
+#if LINUX_VERSION_CODE >= 0x020300
+ if (pt->vma->vm_private_data == map) found_maps++;
+#else
+ if (pt->vma->vm_pte == map) found_maps++;
+#endif
+ if (pt->vma == vma) {
+ if (prev) {
+ prev->next = pt->next;
+ } else {
+ dev->vmalist = pt->next;
+ }
+ DRM(free)(pt, sizeof(*pt), DRM_MEM_VMAS);
+ }
+ }
+ /* We were the only map that was found */
+ if(found_maps == 1 &&
+ map->flags & _DRM_REMOVABLE) {
+ /* Check to see if we are in the maplist, if we are not, then
+ * we delete this mappings information.
+ */
+ found_maps = 0;
+ list = &dev->maplist->head;
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *) list;
+ if (r_list->map == map) found_maps++;
+ }
+
+ if(!found_maps) {
+ switch (map->type) {
+ case _DRM_REGISTERS:
+ case _DRM_FRAME_BUFFER:
+#if __REALLY_HAVE_MTRR
+ if (map->mtrr >= 0) {
+ int retcode;
+ retcode = mtrr_del(map->mtrr,
+ map->offset,
+ map->size);
+ DRM_DEBUG("mtrr_del = %d\n", retcode);
+ }
+#endif
+ DRM(ioremapfree)(map->handle, map->size);
+ break;
+ case _DRM_SHM:
+ vfree(map->handle);
+ break;
+ case _DRM_AGP:
+ break;
+ }
+ DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
+ }
+ }
+ up(&dev->struct_sem);
+}
+
+#if LINUX_VERSION_CODE < 0x020317
+unsigned long DRM(vm_dma_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#else
+ /* Return type changed in 2.3.23 */
+struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
+ unsigned long address,
+ int write_access)
+#endif
+{
+ drm_file_t *priv = vma->vm_file->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_device_dma_t *dma = dev->dma;
+ unsigned long physical;
+ unsigned long offset;
+ unsigned long page;
+
+ if (!dma) return NOPAGE_SIGBUS; /* Error */
+ if (address > vma->vm_end) return NOPAGE_SIGBUS; /* Disallow mremap */
+ if (!dma->pagelist) return NOPAGE_OOM ; /* Nothing allocated */
+
+ offset = address - vma->vm_start; /* vm_[pg]off[set] should be 0 */
+ page = offset >> PAGE_SHIFT;
+ physical = dma->pagelist[page] + (offset & (~PAGE_MASK));
+ atomic_inc(&virt_to_page(physical)->count); /* Dec. by kernel */
+
+ DRM_DEBUG("0x%08lx (page %lu) => 0x%08lx\n", address, page, physical);
+#if LINUX_VERSION_CODE < 0x020317
+ return physical;
+#else
+ return virt_to_page(physical);
+#endif
+}
+
+void DRM(vm_open)(struct vm_area_struct *vma)
+{
+ drm_file_t *priv = vma->vm_file->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_vma_entry_t *vma_entry;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ atomic_inc(&dev->vma_count);
+#if LINUX_VERSION_CODE < 0x020333
+ /* The map can exist after the fd is closed. */
+ MOD_INC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+
+ vma_entry = DRM(alloc)(sizeof(*vma_entry), DRM_MEM_VMAS);
+ if (vma_entry) {
+ down(&dev->struct_sem);
+ vma_entry->vma = vma;
+ vma_entry->next = dev->vmalist;
+ vma_entry->pid = current->pid;
+ dev->vmalist = vma_entry;
+ up(&dev->struct_sem);
+ }
+}
+
+void DRM(vm_close)(struct vm_area_struct *vma)
+{
+ drm_file_t *priv = vma->vm_file->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_vma_entry_t *pt, *prev;
+
+ DRM_DEBUG("0x%08lx,0x%08lx\n",
+ vma->vm_start, vma->vm_end - vma->vm_start);
+#if LINUX_VERSION_CODE < 0x020333
+ MOD_DEC_USE_COUNT; /* Needed before Linux 2.3.51 */
+#endif
+ atomic_dec(&dev->vma_count);
+
+ down(&dev->struct_sem);
+ for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
+ if (pt->vma == vma) {
+ if (prev) {
+ prev->next = pt->next;
+ } else {
+ dev->vmalist = pt->next;
+ }
+ DRM(free)(pt, sizeof(*pt), DRM_MEM_VMAS);
+ break;
+ }
+ }
+ up(&dev->struct_sem);
+}
+
+int DRM(mmap_dma)(struct file *filp, struct vm_area_struct *vma)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev;
+ drm_device_dma_t *dma;
+ unsigned long length = vma->vm_end - vma->vm_start;
+
+ lock_kernel();
+ dev = priv->dev;
+ dma = dev->dma;
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, VM_OFFSET(vma));
+
+ /* Length must match exact page count */
+ if (!dma || (length >> PAGE_SHIFT) != dma->page_count) {
+ unlock_kernel();
+ return -EINVAL;
+ }
+ unlock_kernel();
+
+ vma->vm_ops = &drm_vm_dma_ops;
+ vma->vm_flags |= VM_LOCKED | VM_SHM; /* Don't swap */
+
+#if LINUX_VERSION_CODE < 0x020203 /* KERNEL_VERSION(2,2,3) */
+ /* In Linux 2.2.3 and above, this is
+ handled in do_mmap() in mm/mmap.c. */
+ ++filp->f_count;
+#endif
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ DRM(vm_open)(vma);
+ return 0;
+}
+
+int DRM(mmap)(struct file *filp, struct vm_area_struct *vma)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_map_t *map = NULL;
+ drm_map_list_t *r_list;
+ struct list_head *list;
+
+ DRM_DEBUG("start = 0x%lx, end = 0x%lx, offset = 0x%lx\n",
+ vma->vm_start, vma->vm_end, VM_OFFSET(vma));
+
+ if (!VM_OFFSET(vma)) return DRM(mmap_dma)(filp, vma);
+
+ /* A sequential search of a linked list is
+ fine here because: 1) there will only be
+ about 5-10 entries in the list and, 2) a
+ DRI client only has to do this mapping
+ once, so it doesn't have to be optimized
+ for performance, even if the list was a
+ bit longer. */
+ list_for_each(list, &dev->maplist->head) {
+ r_list = (drm_map_list_t *)list;
+ map = r_list->map;
+ if (!map) continue;
+ if (map->offset == VM_OFFSET(vma)) break;
+ }
+
+ if (!map || ((map->flags&_DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN)))
+ return -EPERM;
+
+ /* Check for valid size. */
+ if (map->size != vma->vm_end - vma->vm_start) return -EINVAL;
+
+ if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) {
+ vma->vm_flags &= VM_MAYWRITE;
+#if defined(__i386__)
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW;
+#else
+ /* Ye gads this is ugly. With more thought
+ we could move this up higher and use
+ `protection_map' instead. */
+ vma->vm_page_prot = __pgprot(pte_val(pte_wrprotect(
+ __pte(pgprot_val(vma->vm_page_prot)))));
+#endif
+ }
+
+ switch (map->type) {
+ case _DRM_FRAME_BUFFER:
+ case _DRM_REGISTERS:
+ case _DRM_AGP:
+ if (VM_OFFSET(vma) >= __pa(high_memory)) {
+#if defined(__i386__)
+ if (boot_cpu_data.x86 > 3 && map->type != _DRM_AGP) {
+ pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
+ pgprot_val(vma->vm_page_prot) &= ~_PAGE_PWT;
+ }
+#elif defined(__ia64__)
+ if (map->type != _DRM_AGP)
+ vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+#endif
+ vma->vm_flags |= VM_IO; /* not in core dump */
+ }
+ if (remap_page_range(vma->vm_start,
+ VM_OFFSET(vma),
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot))
+ return -EAGAIN;
+ DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx,"
+ " offset = 0x%lx\n",
+ map->type,
+ vma->vm_start, vma->vm_end, VM_OFFSET(vma));
+ vma->vm_ops = &drm_vm_ops;
+ break;
+ case _DRM_SHM:
+ vma->vm_ops = &drm_vm_shm_ops;
+#if LINUX_VERSION_CODE >= 0x020300
+ vma->vm_private_data = (void *)map;
+#else
+ vma->vm_pte = (unsigned long)map;
+#endif
+ /* Don't let this area swap. Change when
+ DRM_KERNEL advisory is supported. */
+ vma->vm_flags |= VM_LOCKED;
+ break;
+ default:
+ return -EINVAL; /* This should never happen. */
+ }
+ vma->vm_flags |= VM_LOCKED | VM_SHM; /* Don't swap */
+
+#if LINUX_VERSION_CODE < 0x020203 /* KERNEL_VERSION(2,2,3) */
+ /* In Linux 2.2.3 and above, this is
+ handled in do_mmap() in mm/mmap.c. */
+ ++filp->f_count;
+#endif
+ vma->vm_file = filp; /* Needed for drm_vm_open() */
+ DRM(vm_open)(vma);
+ return 0;
+}
diff --git a/linux/gamma.h b/linux/gamma.h
new file mode 100644
index 000000000..232ed018b
--- /dev/null
+++ b/linux/gamma.h
@@ -0,0 +1,93 @@
+/* gamma.c -- 3dlabs GMX 2000 driver -*- linux-c -*-
+ * Created: Mon Jan 4 08:58:31 1999 by gareth@valinux.com
+ *
+ * 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:
+ * Gareth Hughes <gareth@valinux.com>
+ */
+
+#ifndef __GAMMA_H__
+#define __GAMMA_H__
+
+/* This remains constant for all DRM template files.
+ */
+#define DRM(x) gamma_##x
+
+/* General customization:
+ */
+#define __HAVE_MTRR 1
+
+/* DMA customization:
+ */
+#define __HAVE_DMA 1
+#define __HAVE_OLD_DMA 1
+#define __HAVE_PCI_DMA 1
+
+#define __HAVE_MULTIPLE_DMA_QUEUES 1
+#define __HAVE_DMA_WAITQUEUE 1
+
+#define __HAVE_DMA_WAITLIST 1
+#define __HAVE_DMA_FREELIST 1
+
+#define __HAVE_DMA_FLUSH 1
+#define __HAVE_DMA_SCHEDULE 1
+
+#define __HAVE_DMA_READY 1
+#define DRIVER_DMA_READY() do { \
+ gamma_dma_ready(dev); \
+} while (0)
+
+#define __HAVE_DMA_QUIESCENT 1
+#define DRIVER_DMA_QUIESCENT() do { \
+ /* FIXME ! */ \
+ gamma_dma_quiescent_dual(dev); \
+ return 0; \
+} while (0)
+
+#define __HAVE_DMA_IRQ 1
+#define __HAVE_DMA_IRQ_BH 1
+#define DRIVER_PREINSTALL() do { \
+ drm_gamma_private_t *dev_priv = \
+ (drm_gamma_private_t *)dev->dev_private;\
+ GAMMA_WRITE( GAMMA_GCOMMANDMODE, 0x00000000 ); \
+ GAMMA_WRITE( GAMMA_GDMACONTROL, 0x00000000 ); \
+} while (0)
+
+#define DRIVER_POSTINSTALL() do { \
+ drm_gamma_private_t *dev_priv = \
+ (drm_gamma_private_t *)dev->dev_private;\
+ GAMMA_WRITE( GAMMA_GINTENABLE, 0x00002001 ); \
+ GAMMA_WRITE( GAMMA_COMMANDINTENABLE, 0x00000008 ); \
+ GAMMA_WRITE( GAMMA_GDELAYTIMER, 0x00039090 ); \
+} while (0)
+
+#define DRIVER_UNINSTALL() do { \
+ drm_gamma_private_t *dev_priv = \
+ (drm_gamma_private_t *)dev->dev_private;\
+ GAMMA_WRITE( GAMMA_GDELAYTIMER, 0x00000000 ); \
+ GAMMA_WRITE( GAMMA_COMMANDINTENABLE, 0x00000000 ); \
+ GAMMA_WRITE( GAMMA_GINTENABLE, 0x00000000 ); \
+} while (0)
+
+#endif /* __GAMMA_H__ */
diff --git a/linux/i810.h b/linux/i810.h
new file mode 100644
index 000000000..ed25b2a99
--- /dev/null
+++ b/linux/i810.h
@@ -0,0 +1,112 @@
+/* i810.h -- Intel i810/i815 DRM template customization -*- linux-c -*-
+ * Created: Thu Feb 15 00:01:12 2001 by gareth@valinux.com
+ *
+ * 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:
+ * Gareth Hughes <gareth@valinux.com>
+ */
+
+#ifndef __I810_H__
+#define __I810_H__
+
+/* This remains constant for all DRM template files.
+ */
+#define DRM(x) i810_##x
+
+/* General customization:
+ */
+#define __HAVE_AGP 1
+#define __MUST_HAVE_AGP 1
+#define __HAVE_MTRR 1
+#define __HAVE_CTX_BITMAP 1
+
+/* Driver customization:
+ */
+#define __HAVE_RELEASE 1
+#define DRIVER_RELEASE() do { \
+ i810_reclaim_buffers( dev, priv->pid ); \
+} while (0)
+
+/* DMA customization:
+ */
+#define __HAVE_DMA 1
+#define __HAVE_DMA_QUEUE 1
+#define __HAVE_DMA_WAITLIST 1
+#define __HAVE_DMA_RECLAIM 1
+
+#define __HAVE_DMA_QUIESCENT 1
+#define DRIVER_DMA_QUIESCENT() do { \
+ i810_dma_quiescent( dev ); \
+} while (0)
+
+#define __HAVE_DMA_IRQ 1
+#define __HAVE_DMA_IRQ_BH 1
+#define DRIVER_PREINSTALL() do { \
+ drm_i810_private_t *dev_priv = \
+ (drm_i810_private_t *)dev->dev_private; \
+ u16 tmp; \
+ tmp = I810_READ16( I810REG_HWSTAM ); \
+ tmp = tmp & 0x6000; \
+ I810_WRITE16( I810REG_HWSTAM, tmp ); \
+ \
+ tmp = I810_READ16( I810REG_INT_MASK_R ); \
+ tmp = tmp & 0x6000; /* Unmask interrupts */ \
+ I810_WRITE16( I810REG_INT_MASK_R, tmp ); \
+ tmp = I810_READ16( I810REG_INT_ENABLE_R ); \
+ tmp = tmp & 0x6000; /* Disable all interrupts */ \
+ I810_WRITE16( I810REG_INT_ENABLE_R, tmp ); \
+} while (0)
+
+#define DRIVER_POSTINSTALL() do { \
+ drm_i810_private_t *dev_priv = \
+ (drm_i810_private_t *)dev->dev_private; \
+ u16 tmp; \
+ tmp = I810_READ16( I810REG_INT_ENABLE_R ); \
+ tmp = tmp & 0x6000; \
+ tmp = tmp | 0x0003; /* Enable bp & user interrupts */ \
+ I810_WRITE16( I810REG_INT_ENABLE_R, tmp ); \
+} while (0)
+
+#define DRIVER_UNINSTALL() do { \
+ drm_i810_private_t *dev_priv = \
+ (drm_i810_private_t *)dev->dev_private; \
+ u16 tmp; \
+ tmp = I810_READ16( I810REG_INT_IDENTITY_R ); \
+ tmp = tmp & ~(0x6000); /* Clear all interrupts */ \
+ if ( tmp != 0 ) I810_WRITE16( I810REG_INT_IDENTITY_R, tmp ); \
+ \
+ tmp = I810_READ16( I810REG_INT_ENABLE_R ); \
+ tmp = tmp & 0x6000; /* Disable all interrupts */ \
+ I810_WRITE16( I810REG_INT_ENABLE_R, tmp ); \
+} while (0)
+
+/* Buffer customization:
+ */
+
+#define DRIVER_BUF_PRIV_T drm_i810_buf_priv_t
+
+#define DRIVER_AGP_BUFFERS_MAP( dev ) \
+ ((drm_i810_private_t *)((dev)->dev_private))->buffer_map
+
+#endif
diff --git a/linux/radeon_cp.c b/linux/radeon_cp.c
index 5d662bc08..257f37e73 100644
--- a/linux/radeon_cp.c
+++ b/linux/radeon_cp.c
@@ -621,6 +621,7 @@ static void radeon_cp_init_ring_buffer( drm_device_t *dev )
static int radeon_do_init_cp( drm_device_t *dev, drm_radeon_init_t *init )
{
drm_radeon_private_t *dev_priv;
+ drm_radeon_depth_clear_t *depth_clear;
int i;
dev_priv = drm_alloc( sizeof(drm_radeon_private_t), DRM_MEM_DRIVER );
@@ -705,32 +706,31 @@ static int radeon_do_init_cp( drm_device_t *dev, drm_radeon_init_t *init )
* all values to prevent unwanted 3D state from slipping through
* and screwing with the clear operation.
*/
- dev_priv->depth_clear.rb3d_cntl = (RADEON_PLANE_MASK_ENABLE |
- RADEON_Z_ENABLE |
- (dev_priv->color_fmt << 10) |
- RADEON_ZBLOCK16);
-
- dev_priv->depth_clear.rb3d_zstencilcntl = (dev_priv->depth_fmt |
- RADEON_Z_TEST_ALWAYS |
- RADEON_STENCIL_TEST_ALWAYS |
- RADEON_STENCIL_S_FAIL_KEEP |
- RADEON_STENCIL_ZPASS_KEEP |
- RADEON_STENCIL_ZFAIL_KEEP |
- RADEON_Z_WRITE_ENABLE);
-
- dev_priv->depth_clear.se_cntl = (RADEON_FFACE_CULL_CW |
- RADEON_BFACE_SOLID |
- RADEON_FFACE_SOLID |
- RADEON_FLAT_SHADE_VTX_LAST |
-
- RADEON_DIFFUSE_SHADE_FLAT |
- RADEON_ALPHA_SHADE_FLAT |
- RADEON_SPECULAR_SHADE_FLAT |
- RADEON_FOG_SHADE_FLAT |
-
- RADEON_VTX_PIX_CENTER_OGL |
- RADEON_ROUND_MODE_TRUNC |
- RADEON_ROUND_PREC_8TH_PIX);
+ depth_clear = &dev_priv->depth_clear;
+
+ depth_clear->rb3d_cntl = (RADEON_PLANE_MASK_ENABLE |
+ (dev_priv->color_fmt << 10) |
+ RADEON_ZBLOCK16);
+
+ depth_clear->rb3d_zstencilcntl = (dev_priv->depth_fmt |
+ RADEON_Z_TEST_ALWAYS |
+ RADEON_STENCIL_TEST_ALWAYS |
+ RADEON_STENCIL_FAIL_REPLACE |
+ RADEON_STENCIL_ZPASS_REPLACE |
+ RADEON_STENCIL_ZFAIL_REPLACE |
+ RADEON_Z_WRITE_ENABLE);
+
+ depth_clear->se_cntl = (RADEON_FFACE_CULL_CW |
+ RADEON_BFACE_SOLID |
+ RADEON_FFACE_SOLID |
+ RADEON_FLAT_SHADE_VTX_LAST |
+ RADEON_DIFFUSE_SHADE_FLAT |
+ RADEON_ALPHA_SHADE_FLAT |
+ RADEON_SPECULAR_SHADE_FLAT |
+ RADEON_FOG_SHADE_FLAT |
+ RADEON_VTX_PIX_CENTER_OGL |
+ RADEON_ROUND_MODE_TRUNC |
+ RADEON_ROUND_PREC_8TH_PIX);
/* FIXME: We want multiple shared areas, including one shared
* only by the X Server and kernel module.
diff --git a/linux/radeon_drm.h b/linux/radeon_drm.h
index 6cf92863c..251544227 100644
--- a/linux/radeon_drm.h
+++ b/linux/radeon_drm.h
@@ -57,7 +57,7 @@
#define RADEON_FRONT 0x1
#define RADEON_BACK 0x2
#define RADEON_DEPTH 0x4
-
+#define RADEON_STENCIL 0x8
/* Vertex/indirect buffer size
*/
@@ -141,6 +141,8 @@ typedef struct {
unsigned int se_vport_yoffset;
unsigned int se_vport_zscale;
unsigned int se_vport_zoffset;
+ unsigned int se_zbias_factor;
+ unsigned int se_zbias_constant;
} drm_radeon_viewport_state_t;
/* Setup state */
@@ -212,12 +214,12 @@ typedef struct {
/* Space is crucial; there is some redunancy here:
*/
typedef struct {
- unsigned int start;
- unsigned int finish;
+ unsigned int start;
+ unsigned int finish;
unsigned int prim:8;
unsigned int stateidx:8;
unsigned int numverts:16; /* overloaded as offset/64 for elt prims */
- unsigned int vc_format;
+ unsigned int vc_format;
} drm_radeon_prim_t;
/* Really need a bigger area to hold the primitive and state data:
@@ -304,6 +306,7 @@ typedef struct drm_radeon_clear {
unsigned int clear_color;
unsigned int clear_colormask;
unsigned int clear_depth;
+ unsigned int clear_stencil;
union {
float f[5];
unsigned int ui[5];
diff --git a/linux/radeon_drv.h b/linux/radeon_drv.h
index bead83e07..f0e1f9f0b 100644
--- a/linux/radeon_drv.h
+++ b/linux/radeon_drv.h
@@ -326,9 +326,9 @@ extern int radeon_context_switch_complete(drm_device_t *dev, int new);
# define RADEON_Z_TEST_MASK (7 << 4)
# define RADEON_Z_TEST_ALWAYS (7 << 4)
# define RADEON_STENCIL_TEST_ALWAYS (7 << 12)
-# define RADEON_STENCIL_S_FAIL_KEEP (0 << 16)
-# define RADEON_STENCIL_ZPASS_KEEP (0 << 20)
-# define RADEON_STENCIL_ZFAIL_KEEP (0 << 20)
+# define RADEON_STENCIL_FAIL_REPLACE (2 << 16)
+# define RADEON_STENCIL_ZPASS_REPLACE (2 << 20)
+# define RADEON_STENCIL_ZFAIL_REPLACE (2 << 24)
# define RADEON_Z_WRITE_ENABLE (1 << 30)
#define RADEON_RBBM_SOFT_RESET 0x00f0
# define RADEON_SOFT_RESET_CP (1 << 0)
@@ -705,6 +705,11 @@ do { \
write &= mask; \
} while (0)
+#define OUT_RING_REG( reg, val ) do { \
+ OUT_RING( CP_PACKET0( reg, 0 ) ); \
+ OUT_RING( val ); \
+} while (0)
+
#define RADEON_PERFORMANCE_BOXES 0
#endif /* __RADEON_DRV_H__ */
diff --git a/linux/radeon_state.c b/linux/radeon_state.c
index 6ef4f15fa..501920d45 100644
--- a/linux/radeon_state.c
+++ b/linux/radeon_state.c
@@ -23,9 +23,8 @@
* DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Kevin E. Martin <martin@valinux.com>
* Gareth Hughes <gareth@valinux.com>
- *
+ * Kevin E. Martin <martin@valinux.com>
*/
#define __NO_VERSION__
@@ -141,15 +140,17 @@ static inline void radeon_emit_viewport( drm_radeon_private_t *dev_priv,
RING_LOCALS;
DRM_DEBUG( " %s\n", __FUNCTION__ );
- BEGIN_RING( 7 );
+ BEGIN_RING( 9 );
- OUT_RING( CP_PACKET0( RADEON_SE_VPORT_XSCALE, 5 ) );
+ OUT_RING( CP_PACKET0( RADEON_SE_VPORT_XSCALE, 7 ) );
OUT_RING( viewport->se_vport_xscale );
OUT_RING( viewport->se_vport_xoffset );
OUT_RING( viewport->se_vport_yscale );
OUT_RING( viewport->se_vport_yoffset );
OUT_RING( viewport->se_vport_zscale );
OUT_RING( viewport->se_vport_zoffset );
+ OUT_RING( viewport->se_zbias_factor );
+ OUT_RING( viewport->se_zbias_constant );
ADVANCE_RING();
}
@@ -440,12 +441,14 @@ static void radeon_cp_dispatch_clear( drm_device_t *dev,
{
drm_radeon_private_t *dev_priv = dev->dev_private;
drm_radeon_sarea_t *sarea_priv = dev_priv->sarea_priv;
+ drm_radeon_depth_clear_t *depth_clear = &dev_priv->depth_clear;
int nbox = sarea_priv->nbox;
drm_clip_rect_t *pbox = sarea_priv->boxes;
unsigned int flags = clear->flags;
+ u32 rb3d_cntl = 0, rb3d_stencilrefmask= 0;
int i;
RING_LOCALS;
- DRM_DEBUG( "%s\n", __FUNCTION__ );
+ DRM_DEBUG( __FUNCTION__": flags = 0x%x\n", flags );
radeon_update_ring_snapshot( dev_priv );
@@ -457,6 +460,32 @@ static void radeon_cp_dispatch_clear( drm_device_t *dev,
if ( tmp & RADEON_BACK ) flags |= RADEON_FRONT;
}
+ /* We have to clear the depth and/or stencil buffers by
+ * rendering a quad into just those buffers. Thus, we have to
+ * make sure the 3D engine is configured correctly.
+ */
+ if ( flags & (RADEON_DEPTH | RADEON_STENCIL) ) {
+ if ( sarea_priv->state[0].dirty ) {
+ radeon_emit_state( dev_priv,
+ &sarea_priv->state[0] );
+ }
+ rb3d_cntl = depth_clear->rb3d_cntl;
+
+ if ( flags & RADEON_DEPTH ) {
+ rb3d_cntl |= RADEON_Z_ENABLE;
+ } else {
+ rb3d_cntl &= ~RADEON_Z_ENABLE;
+ }
+
+ if ( flags & RADEON_STENCIL ) {
+ rb3d_cntl |= RADEON_STENCIL_ENABLE;
+ rb3d_stencilrefmask = clear->clear_stencil;
+ } else {
+ rb3d_cntl &= ~RADEON_STENCIL_ENABLE;
+ rb3d_stencilrefmask = 0x00000000;
+ }
+ }
+
for ( i = 0 ; i < nbox ; i++ ) {
int x = pbox[i].x1;
int y = pbox[i].y1;
@@ -522,34 +551,28 @@ static void radeon_cp_dispatch_clear( drm_device_t *dev,
OUT_RING( (w << 16) | h );
ADVANCE_RING();
-
}
- if ( flags & RADEON_DEPTH ) {
- drm_radeon_depth_clear_t *depth_clear =
- &dev_priv->depth_clear;
-
- if ( sarea_priv->state[0].dirty ) {
- radeon_emit_state( dev_priv,
- &sarea_priv->state[0] );
- }
-
- /* FIXME: Render a rectangle to clear the depth
- * buffer. So much for those "fast Z clears"...
+ if ( flags & (RADEON_DEPTH | RADEON_STENCIL) ) {
+ /* FIXME: Emit cliprect...
*/
- BEGIN_RING( 23 );
+
+ BEGIN_RING( 25 );
RADEON_WAIT_UNTIL_2D_IDLE();
OUT_RING( CP_PACKET0( RADEON_PP_CNTL, 1 ) );
OUT_RING( 0x00000000 );
- OUT_RING( depth_clear->rb3d_cntl );
- OUT_RING( CP_PACKET0( RADEON_RB3D_ZSTENCILCNTL, 0 ) );
- OUT_RING( depth_clear->rb3d_zstencilcntl );
- OUT_RING( CP_PACKET0( RADEON_RB3D_PLANEMASK, 0 ) );
- OUT_RING( 0x00000000 );
- OUT_RING( CP_PACKET0( RADEON_SE_CNTL, 0 ) );
- OUT_RING( depth_clear->se_cntl );
+ OUT_RING( rb3d_cntl );
+
+ OUT_RING_REG( RADEON_RB3D_ZSTENCILCNTL,
+ depth_clear->rb3d_zstencilcntl );
+ OUT_RING_REG( RADEON_RB3D_STENCILREFMASK,
+ rb3d_stencilrefmask );
+ OUT_RING_REG( RADEON_RB3D_PLANEMASK,
+ 0x00000000 );
+ OUT_RING_REG( RADEON_SE_CNTL,
+ depth_clear->se_cntl );
OUT_RING( CP_PACKET3( RADEON_3D_DRAW_IMMD, 10 ) );
OUT_RING( RADEON_VTX_Z_PRESENT );
@@ -722,7 +745,7 @@ static void radeon_cp_dispatch_vertex( drm_device_t *dev,
int i = 0;
RING_LOCALS;
- DRM_DEBUG( "%s: nbox=%d %d..%d prim %x nvert %d\n",
+ DRM_DEBUG( "%s: nbox=%d %d..%d prim %x nvert %d\n",
__FUNCTION__, sarea_priv->nbox,
prim->start, prim->finish, prim->prim,
numverts);
@@ -730,7 +753,7 @@ static void radeon_cp_dispatch_vertex( drm_device_t *dev,
radeon_update_ring_snapshot( dev_priv );
buf_priv->dispatched = 1;
-
+
do {
/* Emit the next set of up to three cliprects */
if ( i < sarea_priv->nbox ) {
@@ -791,7 +814,7 @@ static void radeon_cp_dispatch_indirect( drm_device_t *dev,
buf->idx, start, end );
radeon_update_ring_snapshot( dev_priv );
-
+
if ( start != end ) {
int offset = (dev_priv->agp_buffers_offset
+ buf->offset + start);
@@ -842,20 +865,20 @@ static void radeon_cp_dispatch_indices( drm_device_t *dev,
/* offset); */
radeon_update_ring_snapshot( dev_priv );
-
+
if ( start < prim->finish ) {
buf_priv->dispatched = 1;
dwords = (prim->finish - prim->start + 3) / sizeof(u32);
- data = (u32 *)((char *)dev_priv->buffers->handle +
+ data = (u32 *)((char *)dev_priv->buffers->handle +
elt_buf->offset + prim->start);
data[0] = CP_PACKET3( RADEON_3D_RNDR_GEN_INDX_PRIM, dwords-2 );
data[1] = offset;
data[2] = RADEON_MAX_VB_VERTS;
data[3] = prim->vc_format;
- data[4] = (prim->prim |
+ data[4] = (prim->prim |
RADEON_PRIM_WALK_IND |
RADEON_COLOR_ORDER_RGBA |
RADEON_VTX_FMT_RADEON_MODE |
@@ -872,7 +895,7 @@ static void radeon_cp_dispatch_indices( drm_device_t *dev,
/* printk("data[3]: %x\n", data[3]); */
/* printk("data[4]: %x\n", data[4]); */
/* for (i = 0 ; i < 10 ; i++) */
-/* printk("%d: %d\n", i, ((short *)(data+5))[i]); */
+/* printk("%d: %d\n", i, ((short *)(data+5))[i]); */
/* printk("...\n"); */
if (1)
@@ -883,8 +906,8 @@ static void radeon_cp_dispatch_indices( drm_device_t *dev,
&sarea_priv->boxes[i] );
}
- radeon_cp_dispatch_indirect( dev, elt_buf,
- prim->start,
+ radeon_cp_dispatch_indirect( dev, elt_buf,
+ prim->start,
prim->finish );
i++;
@@ -1157,11 +1180,11 @@ int radeon_cp_vertex( struct inode *inode, struct file *filp,
}
if ( prim->stateidx != 0xff ) {
- radeon_emit_state( dev_priv,
+ radeon_emit_state( dev_priv,
&sarea_priv->state[prim->stateidx] );
}
- if ( prim->finish <= prim->start )
+ if ( prim->finish <= prim->start )
continue;
if ( prim->start & 0x7 ) {
@@ -1174,7 +1197,7 @@ int radeon_cp_vertex( struct inode *inode, struct file *filp,
} else {
radeon_cp_dispatch_vertex( dev, buf, prim );
}
-
+
}
if (vertex.discard) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 10:14:52 +0000