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Diffstat (limited to 'sys/sparc64/include/iommuvar.h')
| -rw-r--r-- | sys/sparc64/include/iommuvar.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/sys/sparc64/include/iommuvar.h b/sys/sparc64/include/iommuvar.h deleted file mode 100644 index f2fdd6c6dc75..000000000000 --- a/sys/sparc64/include/iommuvar.h +++ /dev/null @@ -1,115 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-2-Clause-FreeBSD - * - * 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. - * - * 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. - * - * from: NetBSD: iommuvar.h,v 1.6 2008/05/29 14:51:26 mrg Exp - * - * $FreeBSD$ - */ - -#ifndef _MACHINE_IOMMUVAR_H_ -#define _MACHINE_IOMMUVAR_H_ - -#define IO_PAGE_SIZE PAGE_SIZE_8K -#define IO_PAGE_MASK PAGE_MASK_8K -#define IO_PAGE_SHIFT PAGE_SHIFT_8K -#define round_io_page(x) round_page(x) -#define trunc_io_page(x) trunc_page(x) - -/* - * LRU queue handling for lazy resource allocation - */ -TAILQ_HEAD(iommu_maplruq_head, bus_dmamap); - -/* - * Per-IOMMU state; the parenthesized comments indicate the locking strategy: - * i - protected by is_mtx. - * r - read-only after initialization. - * * - comment refers to pointer target / target hardware registers - * (for bus_addr_t). - * is_maplruq is also locked by is_mtx. Elements of is_tsb may only be - * accessed from functions operating on the map owning the corresponding - * resource, so the locking the user is required to do to protect the - * map is sufficient. - * dm_reslist of all maps are locked by is_mtx as well. - * is_dvma_rman has its own internal lock. - */ -struct iommu_state { - struct mtx is_mtx; - struct rman is_dvma_rman; /* DVMA space rman */ - struct iommu_maplruq_head is_maplruq; /* (i) LRU queue */ - vm_paddr_t is_ptsb; /* (r) TSB physical address */ - uint64_t *is_tsb; /* (*i) TSB virtual address */ - int is_tsbsize; /* (r) 0 = 8K, ... */ - uint64_t is_pmaxaddr; /* (r) max. physical address */ - uint64_t is_dvmabase; /* (r) */ - uint64_t is_cr; /* (r) Control reg value */ - - vm_paddr_t is_flushpa[2]; /* (r) */ - volatile uint64_t *is_flushva[2]; /* (r, *i) */ - /* - * (i) - * When a flush is completed, 64 bytes will be stored at the given - * location, the first double word being 1, to indicate completion. - * The lower 6 address bits are ignored, so the addresses need to be - * suitably aligned; over-allocate a large enough margin to be able - * to adjust it. - * Two such buffers are needed. - */ - volatile char is_flush[STRBUF_FLUSHSYNC_NBYTES * 3 - 1]; - - /* copies of our parent's state, to allow us to be self contained */ - bus_space_tag_t is_bustag; /* (r) Our bus tag */ - bus_space_handle_t is_bushandle; /* (r) */ - bus_addr_t is_iommu; /* (r, *i) IOMMU registers */ - bus_addr_t is_sb[2]; /* (r, *i) Streaming buffer */ - /* Tag diagnostics access */ - bus_addr_t is_dtag; /* (r, *r) */ - /* Data RAM diagnostic access */ - bus_addr_t is_ddram; /* (r, *r) */ - /* LRU queue diag. access */ - bus_addr_t is_dqueue; /* (r, *r) */ - /* Virtual address diagnostics register */ - bus_addr_t is_dva; /* (r, *r) */ - /* Tag compare diagnostics access */ - bus_addr_t is_dtcmp; /* (r, *r) */ - /* behavior flags */ - u_int is_flags; /* (r) */ -#define IOMMU_RERUN_DISABLE (1 << 0) -#define IOMMU_FIRE (1 << 1) -#define IOMMU_FLUSH_CACHE (1 << 2) -#define IOMMU_PRESERVE_PROM (1 << 3) -}; - -/* interfaces for PCI/SBus code */ -void iommu_init(const char *name, struct iommu_state *is, u_int tsbsize, - uint32_t iovabase, u_int resvpg); -void iommu_reset(struct iommu_state *is); -void iommu_decode_fault(struct iommu_state *is, vm_offset_t phys); - -extern struct bus_dma_methods iommu_dma_methods; - -#endif /* !_MACHINE_IOMMUVAR_H_ */ |