Home | History | Annotate | Line # | Download | only in include
pci_machdep.h revision 1.10 
      1 /*	$NetBSD: pci_machdep.h,v 1.10 2016/10/19 00:08:42 nonaka Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
      5  * Copyright (c) 1994 Charles M. Hannum.  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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Charles M. Hannum.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * Machine-specific definitions for PCI autoconfiguration.
     35  */
     36 
     37 #define	__HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
     38 #define	__HAVE_PCI_MSI_MSIX
     39 
     40 /*
     41  * be-specific PCI structure and type definitions.
     42  * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
     43  *
     44  * Configuration tag; created from a {bus,device,function} triplet by
     45  * pci_make_tag(), and passed to pci_conf_read() and pci_conf_write().
     46  * We could instead always pass the {bus,device,function} triplet to
     47  * the read and write routines, but this would cause extra overhead.
     48  */
     49 
     50 struct pci_attach_args;	/* Forward declaration */
     51 
     52 /*
     53  * Types provided to machine-independent PCI code
     54  */
     55 typedef void *pci_chipset_tag_t;
     56 typedef int pcitag_t;
     57 typedef int pci_intr_handle_t;
     58 extern struct powerpc_bus_dma_tag pci_bus_dma_tag;
     59 
     60 typedef enum {
     61 	PCI_INTR_TYPE_INTX = 0,
     62 	PCI_INTR_TYPE_MSI,
     63 	PCI_INTR_TYPE_MSIX,
     64 	PCI_INTR_TYPE_SIZE,
     65 } pci_intr_type_t;
     66 
     67 /*
     68  * Functions provided to machine-independent PCI code.
     69  */
     70 void		pci_attach_hook(device_t, device_t,
     71 		    struct pcibus_attach_args *);
     72 int		pci_bus_maxdevs(pci_chipset_tag_t, int);
     73 pcitag_t	pci_make_tag(pci_chipset_tag_t, int, int, int);
     74 void		pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
     75 		    int *, int *, int *);
     76 pcireg_t	pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
     77 void		pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
     78 		    pcireg_t);
     79 int		pci_intr_map(const struct pci_attach_args *,
     80 		    pci_intr_handle_t *);
     81 const char	*pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t,
     82 		    char *, size_t);
     83 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
     84 void		*pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
     85 		    int, int (*)(void *), void *);
     86 void		*pci_intr_establish_xname(pci_chipset_tag_t, pci_intr_handle_t,
     87 		    int, int (*)(void *), void *, const char *);
     88 void		pci_intr_disestablish(pci_chipset_tag_t, void *);
     89 
     90 pci_intr_type_t	pci_intr_type(pci_chipset_tag_t, pci_intr_handle_t);
     91 int		pci_intr_alloc(const struct pci_attach_args *,
     92 		    pci_intr_handle_t **, int *, pci_intr_type_t);
     93 void		pci_intr_release(pci_chipset_tag_t, pci_intr_handle_t *, int);
     94 int		pci_intx_alloc(const struct pci_attach_args *,
     95 		    pci_intr_handle_t **);
     96 
     97 /* experimental MSI support */
     98 int		pci_msi_alloc(const struct pci_attach_args *,
     99 		    pci_intr_handle_t **, int *);
    100 int		pci_msi_alloc_exact(const struct pci_attach_args *,
    101 		    pci_intr_handle_t **, int);
    102 
    103 /* experimental MSI-X support */
    104 int		pci_msix_alloc(const struct pci_attach_args *,
    105 		    pci_intr_handle_t **, int *);
    106 int		pci_msix_alloc_exact(const struct pci_attach_args *,
    107 		    pci_intr_handle_t **, int);
    108 int		pci_msix_alloc_map(const struct pci_attach_args *,
    109 		    pci_intr_handle_t **, u_int *, int);
    110 
    111 void		pci_conf_interrupt(pci_chipset_tag_t, int, int, int,
    112 		    int, int *);
    113 int		pci_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t);
    114