/* $OpenBSD: iommuvar.h,v 1.3 2001/09/26 19:31:57 jason Exp $ */ /* $NetBSD: iommuvar.h,v 1.7 2001/07/20 00:07:13 eeh Exp $ */ /* * Copyright (c) 1999 Matthew R. Green * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _SPARC64_DEV_IOMMUVAR_H_ #define _SPARC64_DEV_IOMMUVAR_H_ /* * per-IOMMU state */ struct iommu_state { paddr_t is_ptsb; /* TSB physical address */ int64_t *is_tsb; /* TSB virtual address */ int is_tsbsize; /* 0 = 8K, ... */ u_int is_dvmabase; int64_t is_cr; /* IOMMU control regiter value */ struct extent *is_dvmamap; /* DVMA map for this instance */ paddr_t is_flushpa; /* used to flush the SBUS */ /* Needs to be volatile or egcs optimizes away loads */ volatile int64_t is_flush; /* copies of our parents state, to allow us to be self contained */ bus_space_tag_t is_bustag; /* our bus tag */ struct iommureg *is_iommu; /* IOMMU registers */ struct iommu_strbuf *is_sb; /* streaming buffer */ }; /* interfaces for PCI/SBUS code */ void iommu_init __P((char *, struct iommu_state *, int, u_int32_t)); void iommu_reset __P((struct iommu_state *)); void iommu_enter __P((struct iommu_state *, vaddr_t, int64_t, int)); void iommu_remove __P((struct iommu_state *, vaddr_t, size_t)); int iommu_dvmamap_load __P((bus_dma_tag_t, struct iommu_state *, bus_dmamap_t, void *, bus_size_t, struct proc *, int)); void iommu_dvmamap_unload __P((bus_dma_tag_t, struct iommu_state *, bus_dmamap_t)); int iommu_dvmamap_load_raw __P((bus_dma_tag_t, struct iommu_state *, bus_dmamap_t, bus_dma_segment_t *, int, int, bus_size_t)); void iommu_dvmamap_sync __P((bus_dma_tag_t, struct iommu_state *, bus_dmamap_t, bus_addr_t, bus_size_t, int)); int iommu_dvmamem_alloc __P((bus_dma_tag_t, struct iommu_state *, bus_size_t, bus_size_t, bus_size_t, bus_dma_segment_t *, int, int *, int)); void iommu_dvmamem_free __P((bus_dma_tag_t, struct iommu_state *, bus_dma_segment_t *, int)); int iommu_dvmamem_map __P((bus_dma_tag_t, struct iommu_state *, bus_dma_segment_t *, int, size_t, caddr_t *, int)); void iommu_dvmamem_unmap __P((bus_dma_tag_t, struct iommu_state *, caddr_t, size_t)); paddr_t iommu_extract __P((struct iommu_state *, vaddr_t)); #endif /* _SPARC64_DEV_IOMMUVAR_H_ */