From cfa778af9c70faea8c13e5cb7f80029eee0d074e Mon Sep 17 00:00:00 2001
From: Eric Anholt <anholt@freebsd.org>
Date: Fri, 21 Feb 2003 23:23:09 +0000
Subject: Merge from bsd-4-0-0-branch.

---
 bsd/drm_bufs.h | 58 +++++++++++++++++++++++++++++++---------------------------
 1 file changed, 31 insertions(+), 27 deletions(-)

(limited to 'bsd/drm_bufs.h')

diff --git a/bsd/drm_bufs.h b/bsd/drm_bufs.h
index 7d56d0a3..89390b56 100644
--- a/bsd/drm_bufs.h
+++ b/bsd/drm_bufs.h
@@ -69,18 +69,26 @@ int DRM(order)( unsigned long size )
 int DRM(addmap)( DRM_IOCTL_ARGS )
 {
 	DRM_DEVICE;
-	drm_map_t *map;
+	drm_map_t request;
+	drm_local_map_t *map;
 	drm_map_list_entry_t *list;
 	
 	if (!(dev->flags & (FREAD|FWRITE)))
 		return DRM_ERR(EACCES); /* Require read/write */
 
-	map = (drm_map_t *) DRM(alloc)( sizeof(*map), DRM_MEM_MAPS );
+	DRM_COPY_FROM_USER_IOCTL( request, (drm_map_t *)data, sizeof(drm_map_t) );
+
+	map = (drm_local_map_t *) DRM(alloc)( sizeof(*map), DRM_MEM_MAPS );
 	if ( !map )
 		return DRM_ERR(ENOMEM);
 
-	*map = *(drm_map_t *)data;
-
+	map->offset = request.offset;
+	map->size = request.size;
+	map->type = request.type;
+	map->flags = request.flags;
+	map->mtrr   = -1;
+	map->handle = 0;
+	
 	/* Only allow shared memory to be removable since we only keep enough
 	 * book keeping information about shared memory to allow for removal
 	 * when processes fork.
@@ -95,22 +103,14 @@ int DRM(addmap)( DRM_IOCTL_ARGS )
 		DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
 		return DRM_ERR(EINVAL);
 	}
-	map->mtrr   = -1;
-	map->handle = 0;
 
 	switch ( map->type ) {
 	case _DRM_REGISTERS:
 	case _DRM_FRAME_BUFFER:
-#if !defined(__sparc__) && !defined(__alpha__)
-		if ( map->offset + map->size < map->offset
-		) {
+		if ( map->offset + map->size < map->offset ) {
 			DRM(free)( map, sizeof(*map), DRM_MEM_MAPS );
 			return DRM_ERR(EINVAL);
 		}
-#endif
-#ifdef __alpha__
-		map->offset += dev->hose->mem_space->start;
-#endif
 #if __REALLY_HAVE_MTRR
 		if ( map->type == _DRM_FRAME_BUFFER ||
 		     (map->flags & _DRM_WRITE_COMBINING) ) {
@@ -130,14 +130,12 @@ int DRM(addmap)( DRM_IOCTL_ARGS )
 			mtrrmap.base = map->offset;
 			mtrrmap.len = map->size;
 			mtrrmap.type = MTRR_TYPE_WC;
-			mtrrmap.flags = MTRR_PRIVATE | MTRR_VALID;
-			mtrrmap.owner = p->p_pid;
-			/* USER? KERNEL? XXX */
-			map->mtrr = mtrr_get( &mtrrmap, &one, p, MTRR_GETSET_KERNEL );
+			mtrrmap.flags = MTRR_VALID;
+			map->mtrr = mtrr_set( &mtrrmap, &one, p, MTRR_GETSET_KERNEL );
 #endif
 		}
 #endif /* __REALLY_HAVE_MTRR */
-		map->handle = DRM(ioremap)( map->offset, map->size );
+		DRM_IOREMAP(map);
 		break;
 
 	case _DRM_SHM:
@@ -155,9 +153,6 @@ int DRM(addmap)( DRM_IOCTL_ARGS )
 		break;
 #if __REALLY_HAVE_AGP
 	case _DRM_AGP:
-#ifdef __alpha__
-		map->offset += dev->hose->mem_space->start;
-#endif
 		map->offset += dev->agp->base;
 		map->mtrr   = dev->agp->agp_mtrr; /* for getmap */
 		break;
@@ -187,11 +182,19 @@ int DRM(addmap)( DRM_IOCTL_ARGS )
 	TAILQ_INSERT_TAIL(dev->maplist, list, link);
 	DRM_UNLOCK;
 
-	*(drm_map_t *)data = *map;
+	request.offset = map->offset;
+	request.size = map->size;
+	request.type = map->type;
+	request.flags = map->flags;
+	request.mtrr   = map->mtrr;
+	request.handle = map->handle;
 
-	if ( map->type != _DRM_SHM ) {
-		((drm_map_t *)data)->handle = (void *)map->offset;
+	if ( request.type != _DRM_SHM ) {
+		request.handle = (void *)request.offset;
 	}
+
+	DRM_COPY_TO_USER_IOCTL( (drm_map_t *)data, request, sizeof(drm_map_t) );
+
 	return 0;
 }
 
@@ -204,7 +207,7 @@ int DRM(rmmap)( DRM_IOCTL_ARGS )
 {
 	DRM_DEVICE;
 	drm_map_list_entry_t *list;
-	drm_map_t *map;
+	drm_local_map_t *map;
 	drm_map_t request;
 	int found_maps = 0;
 
@@ -257,7 +260,7 @@ int DRM(rmmap)( DRM_IOCTL_ARGS )
 #endif
 			}
 #endif
-			DRM(ioremapfree)(map->handle, map->size);
+			DRM(ioremapfree)( map );
 			break;
 		case _DRM_SHM:
 			DRM(free)( map->handle, map->size, DRM_MEM_SAREA );
@@ -1018,6 +1021,7 @@ int DRM(mapbufs)( DRM_IOCTL_ARGS )
 #endif /* __FreeBSD__ */
 #ifdef __NetBSD__
 	struct vnode *vn;
+	struct vmspace *vms = p->p_vmspace;
 #endif /* __NetBSD__ */
 
 	drm_buf_map_t request;
@@ -1043,7 +1047,7 @@ int DRM(mapbufs)( DRM_IOCTL_ARGS )
 	if ( request.count >= dma->buf_count ) {
 		if ( (__HAVE_AGP && (dma->flags & _DRM_DMA_USE_AGP)) ||
 		     (__HAVE_SG && (dma->flags & _DRM_DMA_USE_SG)) ) {
-			drm_map_t *map = DRIVER_AGP_BUFFERS_MAP( dev );
+			drm_local_map_t *map = DRIVER_AGP_BUFFERS_MAP( dev );
 
 			if ( !map ) {
 				retcode = EINVAL;
-- 
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