/* $NetBSD: pci.h,v 1.56 2022/10/25 23:37:06 riastradh Exp $ */ /*- * Copyright (c) 2013 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Taylor R. Campbell. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _LINUX_PCI_H_ #define _LINUX_PCI_H_ #ifdef _KERNEL_OPT #include "acpica.h" #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct acpi_devnode; struct pci_driver; struct pci_dev; struct pci_bus { /* NetBSD private members */ pci_chipset_tag_t pb_pc; device_t pb_dev; /* Linux API */ u_int number; struct pci_dev *self; }; struct pci_device_id { uint32_t vendor; uint32_t device; uint32_t subvendor; uint32_t subdevice; uint32_t class; uint32_t class_mask; unsigned long driver_data; }; #define PCI_DEVICE(VENDOR, DEVICE) \ .vendor = (VENDOR), \ .device = (DEVICE) #define PCI_ANY_ID (~0) #define PCI_BASE_CLASS_DISPLAY PCI_CLASS_DISPLAY #define PCI_CLASS_DISPLAY_VGA \ ((PCI_CLASS_DISPLAY << 8) | PCI_SUBCLASS_DISPLAY_VGA) CTASSERT(PCI_CLASS_DISPLAY_VGA == 0x0300); #define PCI_CLASS_DISPLAY_OTHER \ ((PCI_CLASS_DISPLAY << 8) | PCI_SUBCLASS_DISPLAY_MISC) CTASSERT(PCI_CLASS_DISPLAY_OTHER == 0x0380); #define PCI_CLASS_BRIDGE_ISA \ ((PCI_CLASS_BRIDGE << 8) | PCI_SUBCLASS_BRIDGE_ISA) CTASSERT(PCI_CLASS_BRIDGE_ISA == 0x0601); /* XXX This is getting silly... */ #define PCI_VENDOR_ID_APPLE PCI_VENDOR_APPLE #define PCI_VENDOR_ID_ASUSTEK PCI_VENDOR_ASUSTEK #define PCI_VENDOR_ID_ATI PCI_VENDOR_ATI #define PCI_VENDOR_ID_DELL PCI_VENDOR_DELL #define PCI_VENDOR_ID_IBM PCI_VENDOR_IBM #define PCI_VENDOR_ID_HP PCI_VENDOR_HP #define PCI_VENDOR_ID_INTEL PCI_VENDOR_INTEL #define PCI_VENDOR_ID_NVIDIA PCI_VENDOR_NVIDIA #define PCI_VENDOR_ID_SI PCI_VENDOR_SIS #define PCI_VENDOR_ID_SONY PCI_VENDOR_SONY #define PCI_VENDOR_ID_VIA PCI_VENDOR_VIATECH #define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4 #define PCI_DEVICE_ID_ATI_RADEON_QY PCI_PRODUCT_ATI_RADEON_RV100_QY #define PCI_SUBDEVICE_ID_QEMU 0x1100 #define PCI_DEVFN(DEV, FN) \ (__SHIFTIN((DEV), __BITS(3, 7)) | __SHIFTIN((FN), __BITS(0, 2))) #define PCI_SLOT(DEVFN) ((int)__SHIFTOUT((DEVFN), __BITS(3, 7))) #define PCI_FUNC(DEVFN) ((int)__SHIFTOUT((DEVFN), __BITS(0, 2))) #define PCI_DEVID(BUS, DEVFN) \ (__SHIFTIN((BUS), __BITS(15, 8)) | __SHIFTIN((DEVFN), __BITS(7, 0))) #define PCI_BUS_NUM(DEVID) ((int)__SHIFTOUT((DEVID), __BITS(15,8))) #define PCI_NUM_RESOURCES ((PCI_MAPREG_END - PCI_MAPREG_START) / 4) #define DEVICE_COUNT_RESOURCE PCI_NUM_RESOURCES #define PCI_CAP_ID_AGP PCI_CAP_AGP #define PCI_EXP_LNKCTL PCIE_LCSR #define PCI_EXP_LNKCTL_HAWD PCIE_LCSR_HAWD #define PCI_EXP_DEVSTA (PCIE_DCSR + 2) #define PCI_EXP_DEVSTA_TRPND (PCIE_DCSR_TRANSACTION_PND >> 16) #define PCI_EXP_LNKCTL2 PCIE_LCAP2 #define PCI_EXP_LNKCTL2_ENTER_COMP PCIE_LCSR2_ENT_COMPL #define PCI_EXP_LNKCTL2_TX_MARGIN PCIE_LCSR2_TX_MARGIN #define PCI_EXP_LNKCTL2_TLS PCIE_LCSR2_TGT_LSPEED #define PCI_EXP_LNKCTL2_TLS_2_5GT PCIE_LCSR2_TGT_LSPEED_2_5G #define PCI_EXP_LNKCTL2_TLS_5_0GT PCIE_LCSR2_TGT_LSPEED_5G #define PCI_EXP_LNKCTL2_TLS_8_0GT PCIE_LCSR2_TGT_LSPEED_8G #define PCI_EXP_LNKCAP PCIE_LCAP #define PCI_EXP_LNKCAP_CLKPM PCIE_LCAP_CLOCK_PM typedef int pci_power_t; #define PCI_D0 0 #define PCI_D1 1 #define PCI_D2 2 #define PCI_D3hot 3 #define PCI_D3cold 4 #define __pci_iomem struct pci_dev { struct pci_attach_args pd_pa; int pd_kludges; /* Gotta lose 'em... */ #define NBPCI_KLUDGE_GET_MUMBLE 0x01 #define NBPCI_KLUDGE_MAP_ROM 0x02 bus_space_tag_t pd_rom_bst; bus_space_handle_t pd_rom_bsh; bus_size_t pd_rom_size; bus_space_handle_t pd_rom_found_bsh; bus_size_t pd_rom_found_size; void *pd_rom_vaddr; device_t pd_dev; void *pd_drvdata; struct { pcireg_t type; bus_addr_t addr; bus_size_t size; int flags; bus_space_tag_t bst; bus_space_handle_t bsh; void __pci_iomem *kva; bool mapped; } pd_resources[PCI_NUM_RESOURCES]; struct pci_conf_state *pd_saved_state; struct acpi_devnode *pd_ad; pci_intr_handle_t *pd_intr_handles; unsigned pd_enablecnt; /* Linx API only below */ struct pci_bus *bus; uint32_t devfn; uint16_t vendor; uint16_t device; uint16_t subsystem_vendor; uint16_t subsystem_device; uint8_t revision; uint32_t class; bool msi_enabled; bool no_64bit_msi; }; enum pci_bus_speed { PCI_SPEED_UNKNOWN, PCIE_SPEED_2_5GT, PCIE_SPEED_5_0GT, PCIE_SPEED_8_0GT, PCIE_SPEED_16_0GT, PCIE_SPEED_32_0GT, PCIE_SPEED_64_0GT, }; /* * Actually values from the Link Status register, bits 16-19. Don't use * these as a bit-mask -- these are the only known, valid values. */ enum pcie_link_width { PCIE_LNK_WIDTH_RESRV = 0, PCIE_LNK_X1 = __BIT(0), PCIE_LNK_X2 = __BIT(1), PCIE_LNK_X4 = __BIT(2), PCIE_LNK_X8 = __BIT(3), PCIE_LNK_X12 = __BITS(2,3), PCIE_LNK_X16 = __BIT(4), PCIE_LNK_X32 = __BIT(5), PCIE_LNK_WIDTH_UNKNOWN = __BITS(0, 7), }; #define PCIBIOS_MIN_MEM 0x100000 /* XXX bogus x86 kludge bollocks */ #define __pci_rom_iomem /* Namespace. */ #define pci_bus_alloc_resource linux_pci_bus_alloc_resource #define pci_bus_read_config_byte linux_pci_bus_read_config_byte #define pci_bus_read_config_dword linux_pci_bus_read_config_dword #define pci_bus_read_config_word linux_pci_bus_read_config_word #define pci_bus_write_config_byte linux_pci_bus_write_config_byte #define pci_bus_write_config_dword linux_pci_bus_write_config_dword #define pci_bus_write_config_word linux_pci_bus_write_config_word #define pci_clear_master linux_pci_clear_master #define pci_dev_dev linux_pci_dev_dev #define pci_dev_present linux_pci_dev_present #define pci_dev_put linux_pci_dev_put #define pci_disable_msi linux_pci_disable_msi #define pci_disable_rom linux_pci_disable_rom #define pci_dma_supported linux_pci_dma_supported #define pci_domain_nr linux_pci_domain_nr #define pci_enable_msi linux_pci_enable_msi #define pci_enable_rom linux_pci_enable_rom #define pci_find_capability linux_pci_find_capability #define pci_get_class linux_pci_get_class #define pci_get_domain_bus_and_slot linux_pci_get_domain_bus_and_slot #define pci_get_drvdata linux_pci_get_drvdata #define pci_iomap linux_pci_iomap #define pci_iounmap linux_pci_iounmap #define pci_is_pcie linux_pci_is_pcie #define pci_is_root_bus linux_pci_is_root_bus #define pci_is_thunderbolt_attached linux_pci_is_thunderbolt_attached #define pci_map_rom linux_pci_map_rom #define pci_name linux_pci_name #define pci_platform_rom linux_pci_platform_rom #define pci_read_config_byte linux_pci_read_config_byte #define pci_read_config_dword linux_pci_read_config_dword #define pci_read_config_word linux_pci_read_config_word #define pci_release_region linux_pci_release_region #define pci_release_regions linux_pci_release_regions #define pci_request_region linux_pci_request_region #define pci_request_regions linux_pci_request_regions #define pci_resource_end linux_pci_resource_end #define pci_resource_flags linux_pci_resource_flags #define pci_resource_len linux_pci_resource_len #define pci_resource_start linux_pci_resource_start #define pci_restore_state linux_pci_restore_state #define pci_save_state linux_pci_save_state #define pci_set_drvdata linux_pci_set_drvdata #define pci_set_master linux_pci_set_master #define pci_unmap_rom linux_pci_unmap_rom #define pci_write_config_byte linux_pci_write_config_byte #define pci_write_config_dword linux_pci_write_config_dword #define pci_write_config_word linux_pci_write_config_word #define pcibios_align_resource linux_pcibios_align_resource #define pcie_get_speed_cap linux_pcie_get_speed_cap #define pcie_bandwidth_available linux_pcie_bandwidth_available #define pcie_read_config_dword linux_pcie_capability_read_dword #define pcie_read_config_word linux_pcie_capability_read_word #define pcie_write_config_dword linux_pcie_capability_write_dword #define pcie_write_config_word linux_pcie_capability_write_word /* NetBSD local additions. */ void linux_pci_dev_init(struct pci_dev *, device_t, device_t, const struct pci_attach_args *, int); void linux_pci_dev_destroy(struct pci_dev *); /* NetBSD no-renames because use requires review. */ int linux_pci_enable_device(struct pci_dev *); void linux_pci_disable_device(struct pci_dev *); bool pci_is_root_bus(struct pci_bus *); int pci_domain_nr(struct pci_bus *); device_t pci_dev_dev(struct pci_dev *); void pci_set_drvdata(struct pci_dev *, void *); void * pci_get_drvdata(struct pci_dev *); const char * pci_name(struct pci_dev *); int pci_find_capability(struct pci_dev *, int); bool pci_is_pcie(struct pci_dev *); bool pci_dma_supported(struct pci_dev *, uintmax_t); bool pci_is_thunderbolt_attached(struct pci_dev *); int pci_read_config_dword(struct pci_dev *, int, uint32_t *); int pci_read_config_word(struct pci_dev *, int, uint16_t *); int pci_read_config_byte(struct pci_dev *, int, uint8_t *); int pci_write_config_dword(struct pci_dev *, int, uint32_t); int pci_write_config_word(struct pci_dev *, int, uint16_t); int pci_write_config_byte(struct pci_dev *, int, uint8_t); int pcie_capability_read_dword(struct pci_dev *, int, uint32_t *); int pcie_capability_read_word(struct pci_dev *, int, uint16_t *); int pcie_capability_write_dword(struct pci_dev *, int, uint32_t); int pcie_capability_write_word(struct pci_dev *, int, uint16_t); int pci_bus_read_config_dword(struct pci_bus *, unsigned, int, uint32_t *); int pci_bus_read_config_word(struct pci_bus *, unsigned, int, uint16_t *); int pci_bus_read_config_byte(struct pci_bus *, unsigned, int, uint8_t *); int pci_bus_write_config_dword(struct pci_bus *, unsigned, int, uint32_t); int pci_bus_write_config_word(struct pci_bus *, unsigned, int, uint16_t); int pci_bus_write_config_byte(struct pci_bus *, unsigned, int, uint8_t); int pci_enable_msi(struct pci_dev *); void pci_disable_msi(struct pci_dev *); void pci_set_master(struct pci_dev *); void pci_clear_master(struct pci_dev *); int pcie_get_readrq(struct pci_dev *); int pcie_set_readrq(struct pci_dev *, int); bus_addr_t pcibios_align_resource(void *, const struct resource *, bus_addr_t, bus_size_t); int pci_bus_alloc_resource(struct pci_bus *, struct resource *, bus_size_t, bus_size_t, bus_addr_t, int, bus_addr_t (*)(void *, const struct resource *, bus_addr_t, bus_size_t), struct pci_dev *); /* XXX Kludges only -- do not use without checking the implementation! */ struct pci_dev *pci_get_domain_bus_and_slot(int, int, int); struct pci_dev *pci_get_class(uint32_t, struct pci_dev *); /* i915 kludge */ int pci_dev_present(const struct pci_device_id *); void pci_dev_put(struct pci_dev *); void __pci_rom_iomem * pci_map_rom(struct pci_dev *, size_t *); void __pci_rom_iomem * pci_platform_rom(struct pci_dev *, size_t *); void pci_unmap_rom(struct pci_dev *, void __pci_rom_iomem *); int pci_enable_rom(struct pci_dev *); void pci_disable_rom(struct pci_dev *); int pci_request_regions(struct pci_dev *, const char *); void pci_release_regions(struct pci_dev *); int pci_request_region(struct pci_dev *, int, const char *); void pci_release_region(struct pci_dev *, int); bus_addr_t pci_resource_start(struct pci_dev *, unsigned); bus_size_t pci_resource_len(struct pci_dev *, unsigned); bus_addr_t pci_resource_end(struct pci_dev *, unsigned); int pci_resource_flags(struct pci_dev *, unsigned); void __pci_iomem * pci_iomap(struct pci_dev *, unsigned, bus_size_t); void pci_iounmap(struct pci_dev *, void __pci_iomem *); void pci_save_state(struct pci_dev *); void pci_restore_state(struct pci_dev *); enum pci_bus_speed pcie_get_speed_cap(struct pci_dev *dev); unsigned pcie_bandwidth_available(struct pci_dev *dev, struct pci_dev **limiting_dev, enum pci_bus_speed *speed, enum pcie_link_width *width); static inline bool dev_is_pci(struct device *dev) { struct device *parent = device_parent(dev); return parent && device_is_a(parent, "pci"); } #endif /* _LINUX_PCI_H_ */