1 /* $NetBSD: pci_machdep.h,v 1.7 2006/09/28 18:53:15 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 2006 Manuel Bouyer. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33 /* 34 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 35 * Copyright (c) 1994 Charles M. Hannum. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by Charles M. Hannum. 48 * 4. The name of the author may not be used to endorse or promote products 49 * derived from this software without specific prior written permission. 50 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 51 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 52 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 53 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 54 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 55 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 59 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 */ 61 62 #ifndef _XEN_PCI_MACHDEP_H_ 63 #define _XEN_PCI_MACHDEP_H_ 64 65 #include "opt_xen.h" 66 67 extern struct x86_bus_dma_tag pci_bus_dma_tag; 68 #ifdef _LP64 69 extern struct x86_bus_dma_tag pci_bus_dma64_tag; 70 #endif 71 72 /* Some values appropriate for x86, from x86/include/pci_machdep.h */ 73 #define __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH 74 #define PCI_PREFER_IOSPACE 75 76 #ifdef XEN3 77 union x86_pci_tag_u { 78 u_int32_t mode1; 79 struct { 80 u_int16_t port; 81 u_int8_t enable; 82 u_int8_t forward; 83 } mode2; 84 }; 85 86 typedef union x86_pci_tag_u pcitag_t; 87 88 #else /* XEN3 */ 89 90 extern u_int32_t pci_bus_attached[]; 91 92 #define PCI_MACHDEP_ENUMERATE_BUS xen_pci_enumerate_bus 93 94 /* types provided to MI PCI */ 95 struct xen_pci_tag { 96 u_int8_t bus; 97 u_int8_t device; 98 u_int8_t function; 99 u_int8_t _pad; /* pad to 32bits */ 100 }; 101 102 typedef struct xen_pci_tag pcitag_t; 103 #endif /* !XEN3 */ 104 105 typedef void *pci_chipset_tag_t; 106 107 typedef struct xen_intr_handle pci_intr_handle_t; 108 109 /* functions provided to MI PCI */ 110 struct pci_attach_args; 111 112 void pci_attach_hook(struct device *, struct device *, 113 struct pcibus_attach_args *); 114 int pci_bus_maxdevs(pci_chipset_tag_t, int); 115 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 116 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, 117 int *, int *, int *); 118 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 119 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, 120 pcireg_t); 121 int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 122 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t); 123 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 124 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 125 int, int (*)(void *), void *); 126 void pci_intr_disestablish(pci_chipset_tag_t, void *); 127 int xen_pci_enumerate_bus(struct pci_softc *, const int *, 128 int (*)(struct pci_attach_args *), struct pci_attach_args *); 129 130 /* 131 * Section 6.2.4, `Miscellaneous Functions' of the PCI Specification, 132 * says that 255 means `unknown' or `no connection' to the interrupt 133 * controller on a PC. 134 */ 135 #define X86_PCI_INTERRUPT_LINE_NO_CONNECTION 0xff 136 137 extern int pci_mode; 138 int pci_mode_detect(void); 139 int pci_bus_flags(void); 140 141 void pci_device_foreach(pci_chipset_tag_t, int, 142 void (*)(pci_chipset_tag_t, pcitag_t, void*), 143 void *); 144 145 void pci_device_foreach_min(pci_chipset_tag_t, int, int, 146 void (*)(pci_chipset_tag_t, pcitag_t, void*), 147 void *); 148 149 void pci_bridge_foreach(pci_chipset_tag_t, int, int, 150 void (*) (pci_chipset_tag_t, pcitag_t, void *), void *); 151 152 #endif /* _XEN_PCI_MACHDEP_H_ */ 153