eb32016a95
the former, but not the latter. Hopefully, this will address some problems people have been experiencing w/ some devices on Pyxis systems when BWX is used for bus access. (If it's not used for PCI config access, we can get fatal machine checks while probing behind PCI-PCI bridges!!)
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/* $NetBSD: ciavar.h,v 1.15 1998/07/29 01:28:44 thorpej Exp $ */
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <dev/isa/isavar.h>
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#include <dev/pci/pcivar.h>
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#include <alpha/pci/pci_sgmap_pte64.h>
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/*
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* A 21171 chipset's configuration.
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*
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* All of the information that the chipset-specific functions need to
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* do their dirty work (and more!).
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*/
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struct cia_config {
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int cc_initted;
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struct alpha_bus_space cc_iot, cc_memt;
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struct alpha_pci_chipset cc_pc;
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struct alpha_bus_dma_tag cc_dmat_direct;
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struct alpha_bus_dma_tag cc_dmat_sgmap;
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struct alpha_sgmap cc_sgmap;
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u_int32_t cc_hae_mem;
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u_int32_t cc_hae_io;
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u_int32_t cc_rev;
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u_int32_t cc_cnfg;
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int cc_flags;
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#define CCF_ISPYXIS 0x01 /* chip is a 21174 Pyxis */
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#define CCF_PCI_USE_BWX 0x02 /* use BWX for PCI config space */
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#define CCF_BUS_USE_BWX 0x04 /* use BWX for bus space */
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struct extent *cc_io_ex, *cc_d_mem_ex, *cc_s_mem_ex;
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int cc_mallocsafe;
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};
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struct cia_softc {
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struct device sc_dev;
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struct cia_config *sc_ccp;
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};
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void cia_init __P((struct cia_config *, int));
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void cia_pci_init __P((pci_chipset_tag_t, void *));
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void cia_dma_init __P((struct cia_config *));
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void cia_bwx_bus_io_init __P((bus_space_tag_t, void *));
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void cia_bwx_bus_mem_init __P((bus_space_tag_t, void *));
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void cia_swiz_bus_io_init __P((bus_space_tag_t, void *));
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void cia_swiz_bus_mem_init __P((bus_space_tag_t, void *));
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