sparc64/dev/iommuvar.h

1.3  mrg /*	$NetBSD: iommuvar.h,v 1.3 2000/04/22 17:06:03 mrg Exp $	*/
1.1  mrg
1.1  mrg /*
1.1  mrg  * Copyright (c) 1999 Matthew R. Green
1.1  mrg  * All rights reserved.
1.1  mrg  *
1.1  mrg  * Redistribution and use in source and binary forms, with or without
1.1  mrg  * modification, are permitted provided that the following conditions
1.1  mrg  * are met:
1.1  mrg  * 1. Redistributions of source code must retain the above copyright
1.1  mrg  *    notice, this list of conditions and the following disclaimer.
1.1  mrg  * 2. Redistributions in binary form must reproduce the above copyright
1.1  mrg  *    notice, this list of conditions and the following disclaimer in the
1.1  mrg  *    documentation and/or other materials provided with the distribution.
1.1  mrg  * 3. The name of the author may not be used to endorse or promote products
1.1  mrg  *    derived from this software without specific prior written permission.
1.1  mrg  *
1.1  mrg  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
1.1  mrg  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
1.1  mrg  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
1.1  mrg  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
1.1  mrg  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
1.1  mrg  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
1.1  mrg  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
1.1  mrg  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
1.1  mrg  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.1  mrg  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.1  mrg  * SUCH DAMAGE.
1.1  mrg  */
1.1  mrg
1.1  mrg #ifndef _SPARC64_DEV_IOMMUVAR_H_
1.1  mrg #define _SPARC64_DEV_IOMMUVAR_H_
1.1  mrg
1.1  mrg /*
1.1  mrg  * per-IOMMU state
1.1  mrg  */
1.1  mrg struct iommu_state {
1.1  mrg 	paddr_t			is_ptsb;	/* TSB physical address */
1.1  mrg 	int64_t			*is_tsb;	/* TSB virtual address */
1.1  mrg 	int			is_tsbsize;	/* 0 = 8K, ... */
1.1  mrg 	u_int			is_dvmabase;
1.1  mrg 	int64_t			is_cr;		/* IOMMU control regiter value */
1.1  mrg 	struct extent		*is_dvmamap;	/* DVMA map for this instance */
1.1  mrg
1.1  mrg 	paddr_t			is_flushpa;	/* used to flush the SBUS */
1.1  mrg 	/* Needs to be volatile or egcs optimizes away loads */
1.1  mrg 	volatile int64_t	is_flush;
1.1  mrg
1.1  mrg 	/* copies of our parents state, to allow us to be self contained */
1.1  mrg 	bus_space_tag_t		is_bustag;	/* our bus tag */
1.1  mrg 	struct iommureg		*is_iommu;	/* IOMMU registers */
1.1  mrg 	struct iommu_strbuf	*is_sb;		/* streaming buffer */
1.1  mrg };
1.1  mrg
1.1  mrg /* interfaces for PCI/SBUS code */
1.1  mrg void	iommu_init __P((char *, struct iommu_state *, int));
1.1  mrg void	iommu_reset __P((struct iommu_state *));
1.2  eeh void    iommu_enter __P((struct iommu_state *, vaddr_t, int64_t, int));
1.2  eeh void    iommu_remove __P((struct iommu_state *, vaddr_t, size_t));
1.2  eeh int	iommu_flush __P((struct iommu_state *));
1.3  mrg
1.3  mrg int	iommu_dvmamap_load __P((bus_dma_tag_t, struct iommu_state *,
1.3  mrg 	    bus_dmamap_t, void *, bus_size_t, struct proc *, int));
1.3  mrg void	iommu_dvmamap_unload __P((bus_dma_tag_t, struct iommu_state *,
1.3  mrg 	    bus_dmamap_t));
1.3  mrg void	iommu_dvmamap_sync __P((bus_dma_tag_t, struct iommu_state *,
1.3  mrg 	    bus_dmamap_t, bus_addr_t, bus_size_t, int));
1.3  mrg int	iommu_dvmamem_alloc __P((bus_dma_tag_t, struct iommu_state *,
1.3  mrg 	    bus_size_t, bus_size_t, bus_size_t, bus_dma_segment_t *,
1.3  mrg 	    int, int *, int));
1.3  mrg void	iommu_dvmamem_free __P((bus_dma_tag_t, struct iommu_state *,
1.3  mrg 	    bus_dma_segment_t *, int));
1.3  mrg int	iommu_dvmamem_map __P((bus_dma_tag_t, struct iommu_state *,
1.3  mrg 	    bus_dma_segment_t *, int, size_t, caddr_t *, int));
1.3  mrg void	iommu_dvmamem_unmap __P((bus_dma_tag_t, struct iommu_state *,
1.3  mrg 	    caddr_t, size_t));
1.1  mrg
1.1  mrg #endif /* _SPARC64_DEV_IOMMUVAR_H_ */