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pci_machdep.h revision 1.3 
      1 /*	$NetBSD: pci_machdep.h,v 1.3 2002/05/15 19:23:56 thorpej Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1999 Matthew R. Green
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #ifndef _SPARC_PCI_MACHDEP_H_
     32 #define _SPARC_PCI_MACHDEP_H_
     33 
     34 /*
     35  * Machine-specific definitions for PCI autoconfiguration.
     36  */
     37 
     38 /*
     39  * Types provided to machine-independent PCI code
     40  */
     41 typedef struct sparc_pci_chipset *pci_chipset_tag_t;
     42 typedef u_int pci_intr_handle_t;
     43 typedef u_int64_t pcitag_t;
     44 
     45 
     46 /*
     47  * Forward declarations.
     48  */
     49 struct pci_attach_args;
     50 
     51 
     52 /*
     53  * sparc-specific PCI structure and type definitions.
     54  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
     55  */
     56 struct sparc_pci_chipset {
     57 	void		*cookie;	/* msiiep_softc, but sssh! */
     58 };
     59 
     60 /*
     61  * The MI PCI code expects pcitag_t to be a scalar type.  But besides
     62  * the bus/device/function we need to store the OFW node as well.  We
     63  * can squeeze them into a u_int64_t with a little help from some
     64  * macros.  And while we are at it mangle bus/device/function into a
     65  * form directly suitable for pci mode1 configuration address port.
     66  */
     67 #define	PCITAG_CREATE(n,b,d,f)	\
     68 	(((u_int64_t)(n)<<32)|0x80000000U|((b)<<16)|((d)<<11)|((f)<<8))
     69 
     70 #define	PCITAG_NODE(t)		((u_int32_t)(((t)>>32)&0xffffffff))
     71 #define	PCITAG_OFFSET(t)	((u_int32_t)((t)&0xffffffff))
     72 #define PCITAG_BUS(t)		((PCITAG_OFFSET(t)>>16)&0xFF)
     73 #define PCITAG_DEV(t)		((PCITAG_OFFSET(t)>>11)&0x1F)
     74 #define PCITAG_FUN(t)		((PCITAG_OFFSET(t)>>8)&0x7)
     75 
     76 
     77 /*
     78  * Functions provided to machine-independent PCI code.
     79  */
     80 void		pci_attach_hook(struct device *, struct device *,
     81 				struct pcibus_attach_args *);
     82 int		pci_bus_maxdevs(pci_chipset_tag_t, int);
     83 pcitag_t	pci_make_tag(pci_chipset_tag_t, int, int, int);
     84 void		pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
     85 				  int *, int *, int *);
     86 pcireg_t	pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
     87 void		pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
     88 int		pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
     89 const char	*pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
     90 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
     91 void		*pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
     92 				    int, int (*)(void *), void *);
     93 void		pci_intr_disestablish(pci_chipset_tag_t, void *);
     94 
     95 #define	pci_enumerate_bus(sc, m, p)					\
     96 	pci_enumerate_bus_generic((sc), (m), (p))
     97 
     98 #endif /* _SPARC_PCI_MACHDEP_H_ */
     99