pci_machdep.h revision 1.14
1 /* $NetBSD: pci_machdep.h,v 1.14 2018/10/21 00:42:06 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 #include <sys/errno.h> 45 46 /* 47 * Types provided to machine-independent PCI code 48 */ 49 typedef struct arm32_pci_chipset *pci_chipset_tag_t; 50 typedef u_long pcitag_t; 51 typedef uint64_t pci_intr_handle_t; 52 53 /* 54 * pci_intr_handle_t fields 55 */ 56 #define ARM_PCI_INTR_MSI_VEC 0x000007ff00000000ULL 57 #define ARM_PCI_INTR_MPSAFE 0x0000000080000000ULL 58 #define ARM_PCI_INTR_MSIX 0x0000000040000000ULL 59 #define ARM_PCI_INTR_MSI 0x0000000020000000ULL 60 #define ARM_PCI_INTR_FRAME 0x0000000000ff0000ULL 61 #define ARM_PCI_INTR_IRQ 0x000000000000ffffULL 62 63 #ifdef __HAVE_PCI_MSI_MSIX 64 /* 65 * PCI MSI/MSI-X support 66 */ 67 typedef enum { 68 PCI_INTR_TYPE_INTX = 0, 69 PCI_INTR_TYPE_MSI, 70 PCI_INTR_TYPE_MSIX, 71 PCI_INTR_TYPE_SIZE, 72 } pci_intr_type_t; 73 #endif /* __HAVE_PCI_MSI_MSIX */ 74 75 /* 76 * Forward declarations. 77 */ 78 struct pci_attach_args; 79 80 /* 81 * arm32-specific PCI structure and type definitions. 82 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 83 */ 84 struct arm32_pci_chipset { 85 void *pc_conf_v; 86 void (*pc_attach_hook)(device_t, device_t, 87 struct pcibus_attach_args *); 88 int (*pc_bus_maxdevs)(void *, int); 89 pcitag_t (*pc_make_tag)(void *, int, int, int); 90 void (*pc_decompose_tag)(void *, pcitag_t, int *, 91 int *, int *); 92 pcireg_t (*pc_conf_read)(void *, pcitag_t, int); 93 void (*pc_conf_write)(void *, pcitag_t, int, pcireg_t); 94 95 void *pc_intr_v; 96 int (*pc_intr_map)(const struct pci_attach_args *, 97 pci_intr_handle_t *); 98 const char *(*pc_intr_string)(void *, pci_intr_handle_t, 99 char *, size_t); 100 const struct evcnt *(*pc_intr_evcnt)(void *, pci_intr_handle_t); 101 int (*pc_intr_setattr)(void *, pci_intr_handle_t *, 102 int, uint64_t); 103 void *(*pc_intr_establish)(void *, pci_intr_handle_t, 104 int, int (*)(void *), void *); 105 void (*pc_intr_disestablish)(void *, void *); 106 107 #ifdef __HAVE_PCI_CONF_HOOK 108 int (*pc_conf_hook)(void *, int, int, int, pcireg_t); 109 #endif 110 void (*pc_conf_interrupt)(void *, int, int, int, int, int *); 111 112 #ifdef __HAVE_PCI_MSI_MSIX 113 void *pc_msi_v; 114 pci_intr_type_t (*pc_intr_type)(void *, pci_intr_handle_t); 115 int (*pc_intr_alloc)(const struct pci_attach_args *, 116 pci_intr_handle_t **, int *, pci_intr_type_t); 117 void (*pc_intr_release)(void *, pci_intr_handle_t *, int); 118 int (*pc_intx_alloc)(const struct pci_attach_args *, 119 pci_intr_handle_t **); 120 int (*pc_msi_alloc)(const struct pci_attach_args *, 121 pci_intr_handle_t **, int *); 122 int (*pc_msi_alloc_exact)(const struct pci_attach_args *, 123 pci_intr_handle_t **, int); 124 int (*pc_msix_alloc)(const struct pci_attach_args *, 125 pci_intr_handle_t **, int *); 126 int (*pc_msix_alloc_exact)(const struct pci_attach_args *, 127 pci_intr_handle_t **, int); 128 int (*pc_msix_alloc_map)(const struct pci_attach_args *, 129 pci_intr_handle_t **, u_int *, int); 130 #endif 131 132 uint32_t pc_cfg_cmd; 133 }; 134 135 /* 136 * Functions provided to machine-independent PCI code. 137 */ 138 #define pci_attach_hook(p, s, pba) \ 139 (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba)) 140 #define pci_bus_maxdevs(c, b) \ 141 (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b)) 142 #define pci_make_tag(c, b, d, f) \ 143 (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f)) 144 #define pci_decompose_tag(c, t, bp, dp, fp) \ 145 (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp)) 146 #define pci_conf_read(c, t, r) \ 147 (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r)) 148 #define pci_conf_write(c, t, r, v) \ 149 (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v)) 150 #define pci_intr_map(pa, ihp) \ 151 (*(pa)->pa_pc->pc_intr_map)((pa), (ihp)) 152 #define pci_intr_string(c, ih, buf, len) \ 153 (*(c)->pc_intr_string)((c)->pc_intr_v, (ih), (buf), (len)) 154 #define pci_intr_evcnt(c, ih) \ 155 (*(c)->pc_intr_evcnt)((c)->pc_intr_v, (ih)) 156 #define pci_intr_establish(c, ih, l, h, a) \ 157 (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (h), (a)) 158 #define pci_intr_disestablish(c, iv) \ 159 (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv)) 160 #ifdef __HAVE_PCI_CONF_HOOK 161 #define pci_conf_hook(c, b, d, f, id) \ 162 (*(c)->pc_conf_hook)((c)->pc_conf_v, (b), (d), (f), (id)) 163 #endif 164 #define pci_conf_interrupt(c, b, d, i, s, p) \ 165 (*(c)->pc_conf_interrupt)((c)->pc_conf_v, (b), (d), (i), (s), (p)) 166 167 static inline int 168 pci_intr_setattr(pci_chipset_tag_t pc, pci_intr_handle_t *ihp, 169 int attr, uint64_t data) 170 { 171 if (!pc->pc_intr_setattr) 172 return ENODEV; 173 return pc->pc_intr_setattr(pc, ihp, attr, data); 174 } 175 176 #ifdef __HAVE_PCI_MSI_MSIX 177 pci_intr_type_t pci_intr_type(pci_chipset_tag_t, pci_intr_handle_t); 178 int pci_intr_alloc(const struct pci_attach_args *, pci_intr_handle_t **, 179 int *, pci_intr_type_t); 180 void pci_intr_release(pci_chipset_tag_t, pci_intr_handle_t *, int); 181 int pci_intx_alloc(const struct pci_attach_args *, pci_intr_handle_t **); 182 int pci_msi_alloc(const struct pci_attach_args *, pci_intr_handle_t **, 183 int *); 184 int pci_msi_alloc_exact(const struct pci_attach_args *, 185 pci_intr_handle_t **, int); 186 int pci_msix_alloc(const struct pci_attach_args *, pci_intr_handle_t **, 187 int *); 188 int pci_msix_alloc_exact(const struct pci_attach_args *, 189 pci_intr_handle_t **, int); 190 int pci_msix_alloc_map(const struct pci_attach_args *, pci_intr_handle_t **, 191 u_int *, int); 192 #endif /* __HAVE_PCI_MSI_MSIX */ 193 194 #endif /* _ARM_PCI_MACHDEP_H_ */ 195
Indexes created Thu Sep 25 16:09:42 GMT 2025