1 /* $OpenBSD: pci_machdep.h,v 1.7 2020/07/14 15:42:19 patrick Exp $ */ 2 3 /* 4 * Copyright (c) 2003-2004 Opsycon AB (www.opsycon.se / www.opsycon.com) 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 */ 28 29 typedef struct arm64_pci_chipset *pci_chipset_tag_t; 30 typedef u_long pcitag_t; 31 32 /* Supported interrupt types. */ 33 #define PCI_NONE 0 34 #define PCI_INTX 1 35 #define PCI_MSI 2 36 #define PCI_MSIX 3 37 38 typedef struct { 39 pci_chipset_tag_t ih_pc; 40 pcitag_t ih_tag; 41 int ih_intrpin; 42 int ih_type; 43 } pci_intr_handle_t; 44 45 struct pci_attach_args; 46 47 /* 48 * arm64-specific PCI structure and type definitions. 49 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 50 */ 51 struct arm64_pci_chipset { 52 void *pc_conf_v; 53 void (*pc_attach_hook)(struct device *, 54 struct device *, struct pcibus_attach_args *); 55 int (*pc_bus_maxdevs)(void *, int); 56 pcitag_t (*pc_make_tag)(void *, int, int, int); 57 void (*pc_decompose_tag)(void *, pcitag_t, int *, 58 int *, int *); 59 int (*pc_conf_size)(void *, pcitag_t); 60 pcireg_t (*pc_conf_read)(void *, pcitag_t, int); 61 void (*pc_conf_write)(void *, pcitag_t, int, pcireg_t); 62 63 void *pc_intr_v; 64 int (*pc_intr_map)(struct pci_attach_args *, 65 pci_intr_handle_t *); 66 int (*pc_intr_map_msi)(struct pci_attach_args *, 67 pci_intr_handle_t *); 68 int (*pc_intr_map_msix)(struct pci_attach_args *, 69 int, pci_intr_handle_t *); 70 const char *(*pc_intr_string)(void *, pci_intr_handle_t); 71 void *(*pc_intr_establish)(void *, pci_intr_handle_t, 72 int, struct cpu_info *, int (*)(void *), void *, 73 char *); 74 void (*pc_intr_disestablish)(void *, void *); 75 }; 76 77 /* 78 * Functions provided to machine-independent PCI code. 79 */ 80 #define pci_attach_hook(p, s, pba) \ 81 (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba)) 82 #define pci_bus_maxdevs(c, b) \ 83 (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b)) 84 #define pci_make_tag(c, b, d, f) \ 85 (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f)) 86 #define pci_decompose_tag(c, t, bp, dp, fp) \ 87 (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp)) 88 #define pci_conf_size(c, t) \ 89 (*(c)->pc_conf_size)((c)->pc_conf_v, (t)) 90 #define pci_conf_read(c, t, r) \ 91 (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r)) 92 #define pci_conf_write(c, t, r, v) \ 93 (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v)) 94 #define pci_intr_map(c, ihp) \ 95 (*(c)->pa_pc->pc_intr_map)((c), (ihp)) 96 #define pci_intr_map_msi(c, ihp) \ 97 (*(c)->pa_pc->pc_intr_map_msi)((c), (ihp)) 98 #define pci_intr_map_msix(c, vec, ihp) \ 99 (*(c)->pa_pc->pc_intr_map_msix)((c), (vec), (ihp)) 100 #define pci_intr_string(c, ih) \ 101 (*(c)->pc_intr_string)((c)->pc_intr_v, (ih)) 102 #define pci_intr_establish(c, ih, l, h, a, nm) \ 103 (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), NULL, (h), (a),\ 104 (nm)) 105 #define pci_intr_establish_cpu(c, ih, l, ci, h, a, nm) \ 106 (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (ci), (h), (a),\ 107 (nm)) 108 #define pci_intr_disestablish(c, iv) \ 109 (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv)) 110 #define pci_probe_device_hook(c, a) (0) 111 112 #define pci_min_powerstate(c, t) (PCI_PMCSR_STATE_D3) 113 #define pci_set_powerstate_md(c, t, s, p) 114 115 #define pci_dev_postattach(a, b) 116 117 void pci_mcfg_init(bus_space_tag_t, bus_addr_t, int, int, int); 118 pci_chipset_tag_t pci_lookup_segment(int); 119 120 void pci_msi_enable(pci_chipset_tag_t, pcitag_t, bus_addr_t, uint32_t); 121 void pci_msix_enable(pci_chipset_tag_t, pcitag_t, bus_space_tag_t, 122 int, bus_addr_t, uint32_t); 123 int _pci_intr_map_msi(struct pci_attach_args *, pci_intr_handle_t *); 124 int _pci_intr_map_msix(struct pci_attach_args *, int, pci_intr_handle_t *); 125 126 #define __HAVE_PCI_MSIX 127 128 int pci_msix_table_map(pci_chipset_tag_t, pcitag_t, 129 bus_space_tag_t, bus_space_handle_t *); 130 void pci_msix_table_unmap(pci_chipset_tag_t, pcitag_t, 131 bus_space_tag_t, bus_space_handle_t); 132