1 /* $OpenBSD: pci_machdep.h,v 1.4 2019/12/05 12:46:54 mpi Exp $ */ 2 /* $NetBSD: pci_machdep.h,v 1.7 2001/07/20 00:07:14 eeh Exp $ */ 3 4 /* 5 * Copyright (c) 1999 Matthew R. Green 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef _MACHINE_PCI_MACHDEP_H_ 31 #define _MACHINE_PCI_MACHDEP_H_ 32 33 extern struct powerpc_bus_dma_tag pci_bus_dma_tag; 34 35 /* 36 * Forward declarations. 37 */ 38 struct pci_attach_args; 39 40 /* 41 * define some bits used to glue into the common PCI code. 42 */ 43 44 typedef struct ppc_pci_chipset *pci_chipset_tag_t; 45 46 typedef unsigned long pci_intr_handle_t; 47 48 /* 49 * The stuuuuuuupid allegedly MI PCI code expects pcitag_t to be a 50 * scalar type. But we really need to store both the OFW node and 51 * the bus/device/function info in it. (We'd like to store more, 52 * like all the ofw properties, but we don't need to.) Luckily, 53 * both are 32-bit values, so we can squeeze them into a u_int64_t 54 * with a little help from some macros. 55 */ 56 57 #define PCITAG_NODE(x) (int)(((x)>>32)&0xffffffff) 58 #define PCITAG_OFFSET(x) ((x)&0xffffffff) 59 #define PCITAG_BUS(t) ((PCITAG_OFFSET(t)>>16)&0xff) 60 #define PCITAG_DEV(t) ((PCITAG_OFFSET(t)>>11)&0x1f) 61 #define PCITAG_FUN(t) ((PCITAG_OFFSET(t)>>8)&0x7) 62 #define PCITAG_CREATE(n,b,d,f) (((uint64_t)(n)<<32)|((b)<<16)|((d)<<11)|((f)<<8)) 63 typedef uint64_t pcitag_t; 64 65 struct ppc_pci_chipset { 66 void *pc_conf_v; 67 int pc_node; 68 int busnode[256]; 69 70 pcireg_t (*pc_conf_read)(void *, pcitag_t, int); 71 void (*pc_conf_write)(void *, pcitag_t, int, pcireg_t); 72 }; 73 74 75 void pci_attach_hook(struct device *, struct device *, 76 struct pcibus_attach_args *); 77 int pci_bus_maxdevs(pci_chipset_tag_t, int); 78 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 79 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, int *, int *, 80 int *); 81 int pci_conf_size(pci_chipset_tag_t, pcitag_t); 82 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 83 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t); 84 int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 85 int pci_intr_map_msi(struct pci_attach_args *, pci_intr_handle_t *); 86 #define pci_intr_map_msix(p, vec, ihp) (-1) 87 int pci_intr_line(pci_chipset_tag_t, pci_intr_handle_t); 88 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t); 89 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 90 int, int (*)(void *), void *, const char *); 91 void pci_intr_disestablish(pci_chipset_tag_t, void *); 92 int pci_ether_hw_addr(pci_chipset_tag_t, uint8_t *); 93 94 #define pci_probe_device_hook(c, a) (0) 95 96 #define pci_min_powerstate(c, t) (PCI_PMCSR_STATE_D3) 97 #define pci_set_powerstate_md(c, t, s, p) 98 99 #define pci_dev_postattach(a, b) 100 101 int ofw_intr_map(int, uint32_t *, uint32_t *); 102 int ofw_enumerate_pcibus(struct pci_softc *, 103 int (*match)(struct pci_attach_args *), 104 struct pci_attach_args *); 105 106 #define PCI_MACHDEP_ENUMERATE_BUS ofw_enumerate_pcibus 107 108 #endif /* _MACHINE_PCI_MACHDEP_H_ */ 109