5  * \author Rickard E. (Rik) Faith <faith@valinux.com>
6  * \author Gareth Hughes <gareth@valinux.com>
10  * Created: Mon Jan  4 08:58:31 1999 by faith@valinux.com
46 drm_mmap(struct cdev *kdev, vm_ooffset_t offset, vm_paddr_t *paddr,  in drm_mmap()  argument
66 	if (file_priv && !file_priv->authenticated)  in drm_mmap()
69 	DRM_DEBUG("called with offset %016jx\n", offset);  in drm_mmap()
70 	if (dev->dma && offset < ptoa(dev->dma->page_count)) {  in drm_mmap()
71 		drm_device_dma_t *dma = dev->dma;  in drm_mmap()
73 		DRM_SPINLOCK(&dev->dma_lock);  in drm_mmap()
75 		if (dma->pagelist != NULL) {  in drm_mmap()
76 			unsigned long page = offset >> PAGE_SHIFT;  in drm_mmap()
77 			unsigned long phys = dma->pagelist[page];  in drm_mmap()
79 			DRM_SPINUNLOCK(&dev->dma_lock);  in drm_mmap()
83 			DRM_SPINUNLOCK(&dev->dma_lock);  in drm_mmap()
84 			return -1;  in drm_mmap()
90 	   about 5-10 entries in the list and, 2) a  in drm_mmap()
97 	TAILQ_FOREACH(map, &dev->maplist, link) {  in drm_mmap()
98 		if (offset >> DRM_MAP_HANDLE_SHIFT ==  in drm_mmap()
99 		    (unsigned long)map->handle >> DRM_MAP_HANDLE_SHIFT)  in drm_mmap()
104 		DRM_DEBUG("Can't find map, request offset = %016jx\n", offset);  in drm_mmap()
105 		TAILQ_FOREACH(map, &dev->maplist, link) {  in drm_mmap()
106 			DRM_DEBUG("map offset = %016lx, handle = %016lx\n",  in drm_mmap()
107 			    map->offset, (unsigned long)map->handle);  in drm_mmap()
110 		return -1;  in drm_mmap()
112 	if (((map->flags & _DRM_RESTRICTED) && !DRM_SUSER(DRM_CURPROC))) {  in drm_mmap()
115 		return -1;  in drm_mmap()
117 	type = map->type;  in drm_mmap()
120 	offset = offset & ((1ULL << DRM_MAP_HANDLE_SHIFT) - 1);  in drm_mmap()
128 		phys = map->offset + offset;  in drm_mmap()
135 		phys = vtophys((char *)map->virtual + offset);  in drm_mmap()
139 		return -1;	/* This should never happen. */  in drm_mmap()