1 /* $NetBSD: pci.h,v 1.43 2021/12/19 01:23:01 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LINUX_PCI_H_ 33 #define _LINUX_PCI_H_ 34 35 #ifdef _KERNEL_OPT 36 #if defined(i386) || defined(amd64) || defined(__aarch64__) 37 #include "acpica.h" 38 #else /* !(i386 || amd64) */ 39 #define NACPICA 0 40 #endif /* i386 || amd64 */ 41 #endif 42 43 #include <sys/types.h> 44 #include <sys/param.h> 45 #include <sys/bus.h> 46 #include <sys/cdefs.h> 47 #include <sys/kmem.h> 48 #include <sys/systm.h> 49 50 #include <machine/limits.h> 51 52 #include <dev/pci/pcidevs.h> 53 #include <dev/pci/pcireg.h> 54 #include <dev/pci/pcivar.h> 55 #include <dev/pci/agpvar.h> 56 57 #if NACPICA > 0 58 #include <dev/acpi/acpivar.h> 59 #include <dev/acpi/acpi_pci.h> 60 #else 61 struct acpi_devnode; 62 #endif 63 64 #include <linux/device.h> 65 #include <linux/dma-mapping.h> 66 #include <linux/errno.h> 67 #include <linux/io.h> 68 #include <linux/interrupt.h> 69 #include <linux/ioport.h> 70 #include <linux/kernel.h> 71 72 struct pci_driver; 73 74 struct pci_bus { 75 /* NetBSD private members */ 76 pci_chipset_tag_t pb_pc; 77 device_t pb_dev; 78 79 /* Linux API */ 80 u_int number; 81 }; 82 83 struct pci_device_id { 84 uint32_t vendor; 85 uint32_t device; 86 uint32_t subvendor; 87 uint32_t subdevice; 88 uint32_t class; 89 uint32_t class_mask; 90 unsigned long driver_data; 91 }; 92 93 #define PCI_ANY_ID (~0) 94 95 #define PCI_BASE_CLASS_DISPLAY PCI_CLASS_DISPLAY 96 97 #define PCI_CLASS_DISPLAY_VGA \ 98 ((PCI_CLASS_DISPLAY << 8) | PCI_SUBCLASS_DISPLAY_VGA) 99 #define PCI_CLASS_BRIDGE_ISA \ 100 ((PCI_CLASS_BRIDGE << 8) | PCI_SUBCLASS_BRIDGE_ISA) 101 CTASSERT(PCI_CLASS_BRIDGE_ISA == 0x0601); 102 103 /* XXX This is getting silly... */ 104 #define PCI_VENDOR_ID_APPLE PCI_VENDOR_APPLE 105 #define PCI_VENDOR_ID_ASUSTEK PCI_VENDOR_ASUSTEK 106 #define PCI_VENDOR_ID_ATI PCI_VENDOR_ATI 107 #define PCI_VENDOR_ID_DELL PCI_VENDOR_DELL 108 #define PCI_VENDOR_ID_IBM PCI_VENDOR_IBM 109 #define PCI_VENDOR_ID_HP PCI_VENDOR_HP 110 #define PCI_VENDOR_ID_INTEL PCI_VENDOR_INTEL 111 #define PCI_VENDOR_ID_NVIDIA PCI_VENDOR_NVIDIA 112 #define PCI_VENDOR_ID_SI PCI_VENDOR_SIS 113 #define PCI_VENDOR_ID_SONY PCI_VENDOR_SONY 114 #define PCI_VENDOR_ID_VIA PCI_VENDOR_VIATECH 115 116 #define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4 117 118 #define PCI_DEVICE_ID_ATI_RADEON_QY PCI_PRODUCT_ATI_RADEON_RV100_QY 119 120 #define PCI_SUBDEVICE_ID_QEMU 0x1100 121 122 #define PCI_DEVFN(DEV, FN) \ 123 (__SHIFTIN((DEV), __BITS(3, 7)) | __SHIFTIN((FN), __BITS(0, 2))) 124 #define PCI_SLOT(DEVFN) __SHIFTOUT((DEVFN), __BITS(3, 7)) 125 #define PCI_FUNC(DEVFN) __SHIFTOUT((DEVFN), __BITS(0, 2)) 126 127 #define PCI_NUM_RESOURCES ((PCI_MAPREG_END - PCI_MAPREG_START) / 4) 128 #define DEVICE_COUNT_RESOURCE PCI_NUM_RESOURCES 129 130 #define PCI_CAP_ID_AGP PCI_CAP_AGP 131 132 typedef int pci_power_t; 133 134 #define PCI_D0 0 135 #define PCI_D1 1 136 #define PCI_D2 2 137 #define PCI_D3hot 3 138 #define PCI_D3cold 4 139 140 #define __pci_iomem 141 142 struct pci_dev { 143 struct pci_attach_args pd_pa; 144 int pd_kludges; /* Gotta lose 'em... */ 145 #define NBPCI_KLUDGE_GET_MUMBLE 0x01 146 #define NBPCI_KLUDGE_MAP_ROM 0x02 147 bus_space_tag_t pd_rom_bst; 148 bus_space_handle_t pd_rom_bsh; 149 bus_size_t pd_rom_size; 150 bus_space_handle_t pd_rom_found_bsh; 151 bus_size_t pd_rom_found_size; 152 void *pd_rom_vaddr; 153 device_t pd_dev; 154 void *pd_drvdata; 155 struct { 156 pcireg_t type; 157 bus_addr_t addr; 158 bus_size_t size; 159 int flags; 160 bus_space_tag_t bst; 161 bus_space_handle_t bsh; 162 void __pci_iomem *kva; 163 bool mapped; 164 } pd_resources[PCI_NUM_RESOURCES]; 165 struct pci_conf_state *pd_saved_state; 166 struct acpi_devnode *pd_ad; 167 pci_intr_handle_t *pd_intr_handles; 168 unsigned pd_enablecnt; 169 170 /* Linx API only below */ 171 struct pci_bus *bus; 172 uint32_t devfn; 173 uint16_t vendor; 174 uint16_t device; 175 uint16_t subsystem_vendor; 176 uint16_t subsystem_device; 177 uint8_t revision; 178 uint32_t class; 179 bool msi_enabled; 180 bool no_64bit_msi; 181 }; 182 183 #define PCIBIOS_MIN_MEM 0x100000 /* XXX bogus x86 kludge bollocks */ 184 185 #define __pci_rom_iomem 186 187 /* Namespace. */ 188 #define pci_bus_alloc_resource linux_pci_bus_alloc_resource 189 #define pci_bus_read_config_byte linux_pci_bus_read_config_byte 190 #define pci_bus_read_config_dword linux_pci_bus_read_config_dword 191 #define pci_bus_read_config_word linux_pci_bus_read_config_word 192 #define pci_bus_write_config_byte linux_pci_bus_write_config_byte 193 #define pci_bus_write_config_dword linux_pci_bus_write_config_dword 194 #define pci_bus_write_config_word linux_pci_bus_write_config_word 195 #define pci_clear_master linux_pci_clear_master 196 #define pci_dev_dev linux_pci_dev_dev 197 #define pci_dev_put linux_pci_dev_put 198 #define pci_disable_msi linux_pci_disable_msi 199 #define pci_disable_rom linux_pci_disable_rom 200 #define pci_dma_supported linux_pci_dma_supported 201 #define pci_domain_nr linux_pci_domain_nr 202 #define pci_enable_msi linux_pci_enable_msi 203 #define pci_enable_rom linux_pci_enable_rom 204 #define pci_find_capability linux_pci_find_capability 205 #define pci_get_class linux_pci_get_class 206 #define pci_get_domain_bus_and_slot linux_pci_get_domain_bus_and_slot 207 #define pci_get_drvdata linux_pci_get_drvdata 208 #define pci_iomap linux_pci_iomap 209 #define pci_iounmap linux_pci_iounmap 210 #define pci_is_pcie linux_pci_is_pcie 211 #define pci_is_root_bus linux_pci_is_root_bus 212 #define pci_map_rom linux_pci_map_rom 213 #define pci_platform_rom linux_pci_platform_rom 214 #define pci_read_config_byte linux_pci_read_config_byte 215 #define pci_read_config_dword linux_pci_read_config_dword 216 #define pci_read_config_word linux_pci_read_config_word 217 #define pci_resource_end linux_pci_resource_end 218 #define pci_resource_flags linux_pci_resource_flags 219 #define pci_resource_len linux_pci_resource_len 220 #define pci_resource_start linux_pci_resource_start 221 #define pci_restore_state linux_pci_restore_state 222 #define pci_save_state linux_pci_save_state 223 #define pci_set_drvdata linux_pci_set_drvdata 224 #define pci_set_master linux_pci_set_master 225 #define pci_unmap_rom linux_pci_unmap_rom 226 #define pci_write_config_byte linux_pci_write_config_byte 227 #define pci_write_config_dword linux_pci_write_config_dword 228 #define pci_write_config_word linux_pci_write_config_word 229 #define pcibios_align_resource linux_pcibios_align_resource 230 231 /* NetBSD local additions. */ 232 void linux_pci_dev_init(struct pci_dev *, device_t, device_t, 233 const struct pci_attach_args *, int); 234 void linux_pci_dev_destroy(struct pci_dev *); 235 236 /* NetBSD no-renames because use requires review. */ 237 int linux_pci_enable_device(struct pci_dev *); 238 void linux_pci_disable_device(struct pci_dev *); 239 240 bool pci_is_root_bus(struct pci_bus *); 241 int pci_domain_nr(struct pci_bus *); 242 243 device_t pci_dev_dev(struct pci_dev *); 244 void pci_set_drvdata(struct pci_dev *, void *); 245 void * pci_get_drvdata(struct pci_dev *); 246 247 int pci_find_capability(struct pci_dev *, int); 248 bool pci_is_pcie(struct pci_dev *); 249 bool pci_dma_supported(struct pci_dev *, uintmax_t); 250 251 int pci_read_config_dword(struct pci_dev *, int, uint32_t *); 252 int pci_read_config_word(struct pci_dev *, int, uint16_t *); 253 int pci_read_config_byte(struct pci_dev *, int, uint8_t *); 254 int pci_write_config_dword(struct pci_dev *, int, uint32_t); 255 int pci_write_config_word(struct pci_dev *, int, uint16_t); 256 int pci_write_config_byte(struct pci_dev *, int, uint8_t); 257 258 int pci_bus_read_config_dword(struct pci_bus *, unsigned, int, 259 uint32_t *); 260 int pci_bus_read_config_word(struct pci_bus *, unsigned, int, 261 uint16_t *); 262 int pci_bus_read_config_byte(struct pci_bus *, unsigned, int, 263 uint8_t *); 264 int pci_bus_write_config_dword(struct pci_bus *, unsigned, int, 265 uint32_t); 266 int pci_bus_write_config_word(struct pci_bus *, unsigned, int, 267 uint16_t); 268 int pci_bus_write_config_byte(struct pci_bus *, unsigned, int, 269 uint8_t); 270 271 int pci_enable_msi(struct pci_dev *); 272 void pci_disable_msi(struct pci_dev *); 273 void pci_set_master(struct pci_dev *); 274 void pci_clear_master(struct pci_dev *); 275 276 bus_addr_t pcibios_align_resource(void *, const struct resource *, 277 bus_addr_t, bus_size_t); 278 int pci_bus_alloc_resource(struct pci_bus *, struct resource *, 279 bus_size_t, bus_size_t, bus_addr_t, int, 280 bus_addr_t (*)(void *, const struct resource *, bus_addr_t, 281 bus_size_t), struct pci_dev *); 282 283 /* XXX Kludges only -- do not use without checking the implementation! */ 284 struct pci_dev *pci_get_domain_bus_and_slot(int, int, int); 285 struct pci_dev *pci_get_class(uint32_t, struct pci_dev *); /* i915 kludge */ 286 void pci_dev_put(struct pci_dev *); 287 288 void __pci_rom_iomem * 289 pci_map_rom(struct pci_dev *, size_t *); 290 void __pci_rom_iomem * 291 pci_platform_rom(struct pci_dev *, size_t *); 292 void pci_unmap_rom(struct pci_dev *, void __pci_rom_iomem *); 293 int pci_enable_rom(struct pci_dev *); 294 void pci_disable_rom(struct pci_dev *); 295 296 bus_addr_t pci_resource_start(struct pci_dev *, unsigned); 297 bus_size_t pci_resource_len(struct pci_dev *, unsigned); 298 bus_addr_t pci_resource_end(struct pci_dev *, unsigned); 299 int pci_resource_flags(struct pci_dev *, unsigned); 300 301 void __pci_iomem * 302 pci_iomap(struct pci_dev *, unsigned, bus_size_t); 303 void pci_iounmap(struct pci_dev *, void __pci_iomem *); 304 305 void pci_save_state(struct pci_dev *); 306 void pci_restore_state(struct pci_dev *); 307 308 #endif /* _LINUX_PCI_H_ */ 309