--- old/usr/src/uts/common/io/drm/drm_scatter.c	Sun May 28 15:47:12 2017
+++ /dev/null	Sun May 28 15:44:56 2017
@@ -1,184 +0,0 @@
-/*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
-
-/* BEGIN CSTYLED */
-
-/* drm_scatter.h -- IOCTLs to manage scatter/gather memory -*- linux-c -*-
- * Created: Mon Dec 18 23:20:54 2000 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>
- *   Eric Anholt <anholt@FreeBSD.org>
- *
- */
-/* END CSTYLED */
-
-#include "drmP.h"
-#include <sys/gfx_private.h>
-#include "drm_io32.h"
-
-#define	DEBUG_SCATTER 0
-
-#ifdef	_LP64
-#define	ScatterHandle(x) (unsigned int)((x >> 32) + (x & ((1L << 32) - 1)))
-#else
-#define	ScatterHandle(x) (unsigned int)(x)
-#endif
-
-void
-drm_sg_cleanup(drm_device_t *dev, drm_sg_mem_t *entry)
-{
-	int	pages = entry->pages;
-
-	if (entry->busaddr) {
-		kmem_free(entry->busaddr, sizeof (*entry->busaddr) * pages);
-		entry->busaddr = NULL;
-	}
-
-	ASSERT(entry->umem_cookie == NULL);
-
-	if (entry->dmah_sg) {
-		drm_pci_free(dev, entry->dmah_sg);
-		entry->dmah_sg = NULL;
-	}
-
-	if (entry->dmah_gart) {
-		drm_pci_free(dev, entry->dmah_gart);
-		entry->dmah_gart = NULL;
-	}
-
-	if (entry) {
-		drm_free(entry, sizeof (drm_sg_mem_t), DRM_MEM_SGLISTS);
-		entry = NULL;
-	}
-}
-
-/*ARGSUSED*/
-int
-drm_sg_alloc(DRM_IOCTL_ARGS)
-{
-	DRM_DEVICE;
-	unsigned long pages;
-	drm_sg_mem_t		*entry;
-	drm_dma_handle_t	*dmah;
-	drm_scatter_gather_t request;
-
-	DRM_DEBUG("%s\n", "drm_sg_alloc");
-
-	if (dev->sg)
-		return (EINVAL);
-
-#ifdef	_MULTI_DATAMODEL
-	if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) {
-		drm_scatter_gather_32_t request32;
-
-		DRM_COPYFROM_WITH_RETURN(&request32, (void *)data,
-		    sizeof (request32));
-		request.size = request32.size;
-		request.handle = request32.handle;
-	} else
-#endif
-		DRM_COPYFROM_WITH_RETURN(&request, (void *)data,
-		    sizeof (request));
-
-	pages = btopr(request.size);
-	DRM_DEBUG("sg size=%ld pages=%ld\n", request.size, pages);
-	entry = kmem_zalloc(sizeof (*entry), KM_SLEEP);
-	entry->pages = (int)pages;
-	dmah = drm_pci_alloc(dev, ptob(pages), 4096, 0xfffffffful, pages);
-	if (dmah == NULL)
-		goto err_exit;
-	entry->busaddr = (void *)kmem_zalloc(sizeof (*entry->busaddr) *
-	    pages, KM_SLEEP);
-
-	entry->handle = ScatterHandle((unsigned long)dmah->vaddr);
-	entry->virtual = (void *)dmah->vaddr;
-	request.handle = entry->handle;
-	entry->dmah_sg = dmah;
-#ifdef	_MULTI_DATAMODEL
-	if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) {
-		drm_scatter_gather_32_t data32;
-
-		data32.size = (uint32_t)request.size;
-		data32.handle = (uint32_t)request.handle;
-
-		DRM_COPYTO_WITH_RETURN((void *)data, &data32,
-		    sizeof (data32));
-	} else
-#endif
-		DRM_COPYTO_WITH_RETURN((void *)data, &request,
-		    sizeof (request));
-
-	DRM_LOCK();
-	if (dev->sg) {
-		DRM_UNLOCK();
-		drm_sg_cleanup(dev, entry);
-		return (EINVAL);
-	}
-	dev->sg = entry;
-	DRM_UNLOCK();
-
-	return (0);
-
-err_exit:
-	drm_sg_cleanup(dev, entry);
-	return (ENOMEM);
-}
-
-/*ARGSUSED*/
-int
-drm_sg_free(DRM_IOCTL_ARGS)
-{
-	DRM_DEVICE;
-	drm_scatter_gather_t request;
-	drm_sg_mem_t *entry;
-
-#ifdef	_MULTI_DATAMODEL
-	if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) {
-		drm_scatter_gather_32_t request32;
-
-		DRM_COPYFROM_WITH_RETURN(&request32, (void *)data,
-		    sizeof (request32));
-		request.size = request32.size;
-		request.handle = request32.handle;
-	} else
-#endif
-		DRM_COPYFROM_WITH_RETURN(&request, (void *)data,
-		    sizeof (request));
-
-	DRM_LOCK();
-	entry = dev->sg;
-	dev->sg = NULL;
-	DRM_UNLOCK();
-
-	if (!entry || entry->handle != request.handle)
-		return (EINVAL);
-
-	drm_sg_cleanup(dev, entry);
-
-	return (0);
-}
