1/* $OpenBSD: pci_machdep.h,v 1.12 2024/02/03 10:37:26 kettenis 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 29typedef struct machine_pci_chipset *pci_chipset_tag_t; 30typedef uint64_t pcitag_t; 31 32#define PCITAG_NODE(x) ((x) >> 32) 33#define PCITAG_OFFSET(x) ((x) & 0xffffffff) 34 35/* Supported interrupt types. */ 36#define PCI_NONE 0 37#define PCI_INTX 1 38#define PCI_MSI 2 39#define PCI_MSIX 3 40 41typedef struct { 42 pci_chipset_tag_t ih_pc; 43 pcitag_t ih_tag; 44 int ih_intrpin; 45 int ih_type; 46 bus_dma_tag_t ih_dmat; 47} pci_intr_handle_t; 48 49struct pci_attach_args; 50 51/* 52 * Machine-specific PCI structure and type definitions. 53 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 54 */ 55struct machine_pci_chipset { 56 void *pc_conf_v; 57 void (*pc_attach_hook)(struct device *, 58 struct device *, struct pcibus_attach_args *); 59 int (*pc_bus_maxdevs)(void *, int); 60 pcitag_t (*pc_make_tag)(void *, int, int, int); 61 void (*pc_decompose_tag)(void *, pcitag_t, int *, 62 int *, int *); 63 int (*pc_conf_size)(void *, pcitag_t); 64 pcireg_t (*pc_conf_read)(void *, pcitag_t, int); 65 void (*pc_conf_write)(void *, pcitag_t, int, pcireg_t); 66 int (*pc_probe_device_hook)(void *, struct pci_attach_args *); 67 68 void *pc_intr_v; 69 int (*pc_intr_map)(struct pci_attach_args *, 70 pci_intr_handle_t *); 71 int (*pc_intr_map_msi)(struct pci_attach_args *, 72 pci_intr_handle_t *); 73 int (*pc_intr_map_msivec)(struct pci_attach_args *, 74 int, pci_intr_handle_t *); 75 int (*pc_intr_map_msix)(struct pci_attach_args *, 76 int, pci_intr_handle_t *); 77 const char *(*pc_intr_string)(void *, pci_intr_handle_t); 78 void *(*pc_intr_establish)(void *, pci_intr_handle_t, 79 int, struct cpu_info *, int (*)(void *), void *, 80 char *); 81 void (*pc_intr_disestablish)(void *, void *); 82}; 83 84/* 85 * Functions provided to machine-independent PCI code. 86 */ 87#define pci_attach_hook(p, s, pba) \ 88 (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba)) 89#define pci_bus_maxdevs(c, b) \ 90 (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b)) 91#define pci_make_tag(c, b, d, f) \ 92 (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f)) 93#define pci_decompose_tag(c, t, bp, dp, fp) \ 94 (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp)) 95#define pci_conf_size(c, t) \ 96 (*(c)->pc_conf_size)((c)->pc_conf_v, (t)) 97#define pci_conf_read(c, t, r) \ 98 (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r)) 99#define pci_conf_write(c, t, r, v) \ 100 (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v)) 101#define pci_probe_device_hook(c, a) \ 102 (*(c)->pc_probe_device_hook)((c)->pc_conf_v, (a)) 103#define pci_intr_map(c, ihp) \ 104 (*(c)->pa_pc->pc_intr_map)((c), (ihp)) 105#define pci_intr_map_msi(c, ihp) \ 106 (*(c)->pa_pc->pc_intr_map_msi)((c), (ihp)) 107#define pci_intr_map_msivec(c, vec, ihp) \ 108 (*(c)->pa_pc->pc_intr_map_msivec)((c), (vec), (ihp)) 109#define pci_intr_map_msix(c, vec, ihp) \ 110 (*(c)->pa_pc->pc_intr_map_msix)((c), (vec), (ihp)) 111#define pci_intr_string(c, ih) \ 112 (*(c)->pc_intr_string)((c)->pc_intr_v, (ih)) 113#define pci_intr_establish(c, ih, l, h, a, nm) \ 114 (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), NULL, (h), (a),\ 115 (nm)) 116#define pci_intr_establish_cpu(c, ih, l, ci, h, a, nm) \ 117 (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (ci), (h), (a),\ 118 (nm)) 119#define pci_intr_disestablish(c, iv) \ 120 (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv)) 121 122#define pci_min_powerstate(c, t) (PCI_PMCSR_STATE_D3) 123#define pci_set_powerstate_md(c, t, s, p) 124 125#define pci_dev_postattach(a, b) 126 127void pci_mcfg_init(bus_space_tag_t, bus_addr_t, int, int, int); 128pci_chipset_tag_t pci_lookup_segment(int); 129 130int pci_intr_enable_msivec(struct pci_attach_args *, int); 131 132void pci_msi_enable(pci_chipset_tag_t, pcitag_t, bus_addr_t, uint32_t); 133void pci_msix_enable(pci_chipset_tag_t, pcitag_t, bus_space_tag_t, 134 int, bus_addr_t, uint32_t); 135int _pci_intr_map_msi(struct pci_attach_args *, pci_intr_handle_t *); 136int _pci_intr_map_msivec(struct pci_attach_args *, int, 137 pci_intr_handle_t *); 138int _pci_intr_map_msix(struct pci_attach_args *, int, pci_intr_handle_t *); 139 140#define __HAVE_PCI_MSIX 141 142int pci_msix_table_map(pci_chipset_tag_t, pcitag_t, 143 bus_space_tag_t, bus_space_handle_t *); 144void pci_msix_table_unmap(pci_chipset_tag_t, pcitag_t, 145 bus_space_tag_t, bus_space_handle_t); 146