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/* $OpenBSD: iommuvar.h,v 1.2 2001/08/18 21:30:00 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));
#endif /* _SPARC64_DEV_IOMMUVAR_H_ */
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