pci_machdep.h revision 1.17
1 /* $NetBSD: pci_machdep.h,v 1.17 2018/12/08 15:04:40 jmcneill Exp $ */ 2 3 /* 4 * Modified for arm32 by Mark Brinicombe 5 * 6 * from: sys/arch/alpha/pci/pci_machdep.h 7 * 8 * Copyright (c) 1996 Carnegie-Mellon University. 9 * All rights reserved. 10 * 11 * Author: Chris G. Demetriou 12 * 13 * Permission to use, copy, modify and distribute this software and 14 * its documentation is hereby granted, provided that both the copyright 15 * notice and this permission notice appear in all copies of the 16 * software, derivative works or modified versions, and any portions 17 * thereof, and that both notices appear in supporting documentation. 18 * 19 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 20 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 21 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 22 * 23 * Carnegie Mellon requests users of this software to return to 24 * 25 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 26 * School of Computer Science 27 * Carnegie Mellon University 28 * Pittsburgh PA 15213-3890 29 * 30 * any improvements or extensions that they make and grant Carnegie the 31 * rights to redistribute these changes. 32 */ 33 34 #ifndef _ARM_PCI_MACHDEP_H_ 35 #define _ARM_PCI_MACHDEP_H_ 36 /* 37 * Machine-specific definitions for PCI autoconfiguration. 38 */ 39 40 #ifdef __aarch64__ 41 #define _PCI_HAVE_DMA64 42 #endif 43 44 #define __HAVE_PCI_GET_SEGMENT 45 46 #include <sys/errno.h> 47 48 /* 49 * Types provided to machine-independent PCI code 50 */ 51 typedef struct arm32_pci_chipset *pci_chipset_tag_t; 52 typedef u_long pcitag_t; 53 typedef uint64_t pci_intr_handle_t; 54 55 /* 56 * pci_intr_handle_t fields 57 */ 58 #define ARM_PCI_INTR_MSI_VEC 0x000007ff00000000ULL 59 #define ARM_PCI_INTR_MPSAFE 0x0000000080000000ULL 60 #define ARM_PCI_INTR_MSIX 0x0000000040000000ULL 61 #define ARM_PCI_INTR_MSI 0x0000000020000000ULL 62 #define ARM_PCI_INTR_FRAME 0x0000000000ff0000ULL 63 #define ARM_PCI_INTR_IRQ 0x000000000000ffffULL 64 65 #ifdef __HAVE_PCI_MSI_MSIX 66 /* 67 * PCI MSI/MSI-X support 68 */ 69 typedef enum { 70 PCI_INTR_TYPE_INTX = 0, 71 PCI_INTR_TYPE_MSI, 72 PCI_INTR_TYPE_MSIX, 73 PCI_INTR_TYPE_SIZE, 74 } pci_intr_type_t; 75 #endif /* __HAVE_PCI_MSI_MSIX */ 76 77 /* 78 * Forward declarations. 79 */ 80 struct pci_attach_args; 81 82 /* 83 * arm32-specific PCI structure and type definitions. 84 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 85 */ 86 struct arm32_pci_chipset { 87 void *pc_conf_v; 88 void (*pc_attach_hook)(device_t, device_t, 89 struct pcibus_attach_args *); 90 int (*pc_bus_maxdevs)(void *, int); 91 pcitag_t (*pc_make_tag)(void *, int, int, int); 92 void (*pc_decompose_tag)(void *, pcitag_t, int *, 93 int *, int *); 94 u_int (*pc_get_segment)(void *); 95 uint32_t (*pc_get_devid)(void *, uint32_t); 96 pcireg_t (*pc_conf_read)(void *, pcitag_t, int); 97 void (*pc_conf_write)(void *, pcitag_t, int, pcireg_t); 98 99 void *pc_intr_v; 100 int (*pc_intr_map)(const struct pci_attach_args *, 101 pci_intr_handle_t *); 102 const char *(*pc_intr_string)(void *, pci_intr_handle_t, 103 char *, size_t); 104 const struct evcnt *(*pc_intr_evcnt)(void *, pci_intr_handle_t); 105 int (*pc_intr_setattr)(void *, pci_intr_handle_t *, 106 int, uint64_t); 107 void *(*pc_intr_establish)(void *, pci_intr_handle_t, 108 int, int (*)(void *), void *, const char *); 109 void (*pc_intr_disestablish)(void *, void *); 110 111 #ifdef __HAVE_PCI_CONF_HOOK 112 int (*pc_conf_hook)(void *, int, int, int, pcireg_t); 113 #endif 114 void (*pc_conf_interrupt)(void *, int, int, int, int, int *); 115 116 #ifdef __HAVE_PCI_MSI_MSIX 117 void *pc_msi_v; 118 pci_intr_type_t (*pc_intr_type)(void *, pci_intr_handle_t); 119 int (*pc_intr_alloc)(const struct pci_attach_args *, 120 pci_intr_handle_t **, int *, pci_intr_type_t); 121 void (*pc_intr_release)(void *, pci_intr_handle_t *, int); 122 int (*pc_intx_alloc)(const struct pci_attach_args *, 123 pci_intr_handle_t **); 124 int (*pc_msi_alloc)(const struct pci_attach_args *, 125 pci_intr_handle_t **, int *); 126 int (*pc_msi_alloc_exact)(const struct pci_attach_args *, 127 pci_intr_handle_t **, int); 128 int (*pc_msix_alloc)(const struct pci_attach_args *, 129 pci_intr_handle_t **, int *); 130 int (*pc_msix_alloc_exact)(const struct pci_attach_args *, 131 pci_intr_handle_t **, int); 132 int (*pc_msix_alloc_map)(const struct pci_attach_args *, 133 pci_intr_handle_t **, u_int *, int); 134 #endif 135 136 uint32_t pc_cfg_cmd; 137 }; 138 139 /* 140 * Functions provided to machine-independent PCI code. 141 */ 142 #define pci_attach_hook(p, s, pba) \ 143 (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba)) 144 #define pci_bus_maxdevs(c, b) \ 145 (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b)) 146 #define pci_make_tag(c, b, d, f) \ 147 (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f)) 148 #define pci_decompose_tag(c, t, bp, dp, fp) \ 149 (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp)) 150 #define pci_get_segment(c) \ 151 ((c)->pc_get_segment ? (*(c)->pc_get_segment)((c)->pc_conf_v) : 0) 152 #define pci_get_devid(c, d) \ 153 ((c)->pc_get_devid ? (*(c)->pc_get_devid)((c)->pc_conf_v, (d)) : (d)) 154 #define pci_conf_read(c, t, r) \ 155 (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r)) 156 #define pci_conf_write(c, t, r, v) \ 157 (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v)) 158 #define pci_intr_map(pa, ihp) \ 159 (*(pa)->pa_pc->pc_intr_map)((pa), (ihp)) 160 #define pci_intr_string(c, ih, buf, len) \ 161 (*(c)->pc_intr_string)((c)->pc_intr_v, (ih), (buf), (len)) 162 #define pci_intr_evcnt(c, ih) \ 163 (*(c)->pc_intr_evcnt)((c)->pc_intr_v, (ih)) 164 #define pci_intr_establish(c, ih, l, h, a) \ 165 (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (h), (a), NULL) 166 #define pci_intr_disestablish(c, iv) \ 167 (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv)) 168 #ifdef __HAVE_PCI_CONF_HOOK 169 #define pci_conf_hook(c, b, d, f, id) \ 170 (*(c)->pc_conf_hook)((c)->pc_conf_v, (b), (d), (f), (id)) 171 #endif 172 #define pci_conf_interrupt(c, b, d, i, s, p) \ 173 (*(c)->pc_conf_interrupt)((c)->pc_conf_v, (b), (d), (i), (s), (p)) 174 175 static inline int 176 pci_intr_setattr(pci_chipset_tag_t pc, pci_intr_handle_t *ihp, 177 int attr, uint64_t data) 178 { 179 if (!pc->pc_intr_setattr) 180 return ENODEV; 181 return pc->pc_intr_setattr(pc, ihp, attr, data); 182 } 183 184 static inline void * 185 pci_intr_establish_xname(pci_chipset_tag_t pc, pci_intr_handle_t ih, 186 int level, int (*func)(void *), void *arg, const char *xname) 187 { 188 return pc->pc_intr_establish(pc->pc_intr_v, ih, level, func, arg, xname); 189 } 190 191 #ifdef __HAVE_PCI_MSI_MSIX 192 pci_intr_type_t pci_intr_type(pci_chipset_tag_t, pci_intr_handle_t); 193 int pci_intr_alloc(const struct pci_attach_args *, pci_intr_handle_t **, 194 int *, pci_intr_type_t); 195 void pci_intr_release(pci_chipset_tag_t, pci_intr_handle_t *, int); 196 int pci_intx_alloc(const struct pci_attach_args *, pci_intr_handle_t **); 197 int pci_msi_alloc(const struct pci_attach_args *, pci_intr_handle_t **, 198 int *); 199 int pci_msi_alloc_exact(const struct pci_attach_args *, 200 pci_intr_handle_t **, int); 201 int pci_msix_alloc(const struct pci_attach_args *, pci_intr_handle_t **, 202 int *); 203 int pci_msix_alloc_exact(const struct pci_attach_args *, 204 pci_intr_handle_t **, int); 205 int pci_msix_alloc_map(const struct pci_attach_args *, pci_intr_handle_t **, 206 u_int *, int); 207 #endif /* __HAVE_PCI_MSI_MSIX */ 208 209 #endif /* _ARM_PCI_MACHDEP_H_ */ 210
Indexes created Mon Sep 29 21:09:56 GMT 2025