69 lines
2.5 KiB
C
69 lines
2.5 KiB
C
/* $NetBSD: drm_netbsd.h,v 1.2 2008/06/01 12:28:09 bjs Exp $ */
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/*-
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* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Blair Sadewitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef _DEV_DRM_DRMNETBSD_H_
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#define _DEV_DRM_DRMNETBSD_H_
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#include <sys/types.h>
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#include <sys/bus.h>
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#define DRM_DMAMEM_INIT 0x000
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#define DRM_DMAMAP_CREATE 0x001
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#define DRM_DMAMEM_ALLOC 0x002
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#define DRM_DMAMEM_MAP 0x004
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#define DRM_DMAMAP_LOAD 0x008
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#define DRM_DMAMEM_FAIL 0x800
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#define DRM_DMAMEM_BUSADDR(__m) ((__m)->dd_dmam->dm_segs[0].ds_addr)
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#define DRM_DMAMEM_SEGADDR(__m, __s) ((__m)->dd_dmam->dm_segs[__s].ds_addr)
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#define DRM_DMAMEM_SEGSIZE(__m, __s) ((__m)->dd_dmam->dm_segs[__s].ds_len)
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#define DRM_DMAMEM_KERNADDR(__m) ((__m)->dd_kva)
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/* for dma_lock */
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#define RWLOCK_CONTENTION(rwlock) do { } while (!rw_tryupgrade(rwlock))
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struct drm_dmamem {
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bus_dma_tag_t dd_dmat;
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bus_dmamap_t dd_dmam;
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bus_dma_segment_t *dd_segs;
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int dd_nsegs;
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size_t dd_size;
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void *dd_kva;
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unsigned int phase;
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};
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struct drm_dmamem *drm_dmamem_pgalloc(struct drm_device *, size_t);
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void drm_dmamem_free(struct drm_dmamem *);
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#endif /* _DEV_DRM_DRMNETBSD_H_ */
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