1 /* $OpenBSD: pci_machdep.h,v 1.3 2021/06/14 08:19:39 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 29 typedef struct machine_pci_chipset *pci_chipset_tag_t; 30 typedef 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 41 typedef 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 49 struct pci_attach_args; 50 51 /* 52 * Machine-specific PCI structure and type definitions. 53 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 54 */ 55 struct 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_msix)(struct pci_attach_args *, 74 int, pci_intr_handle_t *); 75 const char *(*pc_intr_string)(void *, pci_intr_handle_t); 76 void *(*pc_intr_establish)(void *, pci_intr_handle_t, 77 int, struct cpu_info *, int (*)(void *), void *, 78 char *); 79 void (*pc_intr_disestablish)(void *, void *); 80 }; 81 82 /* 83 * Functions provided to machine-independent PCI code. 84 */ 85 #define pci_attach_hook(p, s, pba) \ 86 (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba)) 87 #define pci_bus_maxdevs(c, b) \ 88 (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b)) 89 #define pci_make_tag(c, b, d, f) \ 90 (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f)) 91 #define pci_decompose_tag(c, t, bp, dp, fp) \ 92 (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp)) 93 #define pci_conf_size(c, t) \ 94 (*(c)->pc_conf_size)((c)->pc_conf_v, (t)) 95 #define pci_conf_read(c, t, r) \ 96 (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r)) 97 #define pci_conf_write(c, t, r, v) \ 98 (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v)) 99 #define pci_probe_device_hook(c, a) \ 100 (*(c)->pc_probe_device_hook)((c)->pc_conf_v, (a)) 101 #define pci_intr_map(c, ihp) \ 102 (*(c)->pa_pc->pc_intr_map)((c), (ihp)) 103 #define pci_intr_map_msi(c, ihp) \ 104 (*(c)->pa_pc->pc_intr_map_msi)((c), (ihp)) 105 #define pci_intr_map_msix(c, vec, ihp) \ 106 (*(c)->pa_pc->pc_intr_map_msix)((c), (vec), (ihp)) 107 #define pci_intr_string(c, ih) \ 108 (*(c)->pc_intr_string)((c)->pc_intr_v, (ih)) 109 #define pci_intr_establish(c, ih, l, h, a, nm) \ 110 (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), NULL, (h), (a),\ 111 (nm)) 112 #define pci_intr_establish_cpu(c, ih, l, ci, h, a, nm) \ 113 (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (ci), (h), (a),\ 114 (nm)) 115 #define pci_intr_disestablish(c, iv) \ 116 (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv)) 117 118 #define pci_min_powerstate(c, t) (PCI_PMCSR_STATE_D3) 119 #define pci_set_powerstate_md(c, t, s, p) 120 121 #define pci_dev_postattach(a, b) 122 123 void pci_mcfg_init(bus_space_tag_t, bus_addr_t, int, int, int); 124 pci_chipset_tag_t pci_lookup_segment(int); 125 126 void pci_msi_enable(pci_chipset_tag_t, pcitag_t, bus_addr_t, uint32_t); 127 void pci_msix_enable(pci_chipset_tag_t, pcitag_t, bus_space_tag_t, 128 int, bus_addr_t, uint32_t); 129 int _pci_intr_map_msi(struct pci_attach_args *, pci_intr_handle_t *); 130 int _pci_intr_map_msix(struct pci_attach_args *, int, pci_intr_handle_t *); 131 132 #define __HAVE_PCI_MSIX 133 134 int pci_msix_table_map(pci_chipset_tag_t, pcitag_t, 135 bus_space_tag_t, bus_space_handle_t *); 136 void pci_msix_table_unmap(pci_chipset_tag_t, pcitag_t, 137 bus_space_tag_t, bus_space_handle_t); 138