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