/*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier * Copyright (c) 2000 Michael Smith * Copyright (c) 2000 BSDi * All rights reserved. * * 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 __PCIB_PRIVATE_H__ #define __PCIB_PRIVATE_H__ #include #ifdef NEW_PCIB /* * Data structure and routines that Host to PCI bridge drivers can use * to restrict allocations for child devices to ranges decoded by the * bridge. */ struct pcib_host_resources { device_t hr_pcib; struct resource_list hr_rl; }; int pcib_host_res_init(device_t pcib, struct pcib_host_resources *hr); int pcib_host_res_free(device_t pcib, struct pcib_host_resources *hr); int pcib_host_res_decodes(struct pcib_host_resources *hr, int type, rman_res_t start, rman_res_t end, u_int flags); struct resource *pcib_host_res_alloc(struct pcib_host_resources *hr, device_t dev, int type, int *rid, rman_res_t start, rman_res_t end, rman_res_t count, u_int flags); int pcib_host_res_adjust(struct pcib_host_resources *hr, device_t dev, int type, struct resource *r, rman_res_t start, rman_res_t end); #endif /* * Export portions of generic PCI:PCI bridge support so that it can be * used by subclasses. */ DECLARE_CLASS(pcib_driver); #ifdef NEW_PCIB #define WIN_IO 0x1 #define WIN_MEM 0x2 #define WIN_PMEM 0x4 struct pcib_window { pci_addr_t base; /* base address */ pci_addr_t limit; /* topmost address */ struct rman rman; struct resource **res; int count; /* size of 'res' array */ int reg; /* resource id from parent */ int valid; int mask; /* WIN_* bitmask of this window */ int step; /* log_2 of window granularity */ const char *name; }; #endif struct pcib_secbus { u_int sec; u_int sub; #if defined(NEW_PCIB) && defined(PCI_RES_BUS) device_t dev; struct rman rman; struct resource *res; const char *name; int sub_reg; #endif }; /* * Bridge-specific data. */ struct pcib_softc { device_t dev; device_t child; uint32_t flags; /* flags */ #define PCIB_SUBTRACTIVE 0x1 #define PCIB_DISABLE_MSI 0x2 #define PCIB_DISABLE_MSIX 0x4 #define PCIB_ENABLE_ARI 0x8 #define PCIB_HOTPLUG 0x10 #define PCIB_HOTPLUG_CMD_PENDING 0x20 #define PCIB_DETACH_PENDING 0x40 #define PCIB_DETACHING 0x80 u_int domain; /* domain number */ u_int pribus; /* primary bus number */ struct pcib_secbus bus; /* secondary bus numbers */ #ifdef NEW_PCIB struct pcib_window io; /* I/O port window */ struct pcib_window mem; /* memory window */ struct pcib_window pmem; /* prefetchable memory window */ #else pci_addr_t pmembase; /* base address of prefetchable memory */ pci_addr_t pmemlimit; /* topmost address of prefetchable memory */ pci_addr_t membase; /* base address of memory window */ pci_addr_t memlimit; /* topmost address of memory window */ uint32_t iobase; /* base address of port window */ uint32_t iolimit; /* topmost address of port window */ #endif uint16_t bridgectl; /* bridge control register */ uint16_t pcie_link_sta; uint16_t pcie_slot_sta; uint32_t pcie_slot_cap; struct resource *pcie_mem; struct resource *pcie_irq; void *pcie_ihand; struct task pcie_hp_task; struct timeout_task pcie_ab_task; struct timeout_task pcie_cc_task; struct timeout_task pcie_dll_task; struct mtx *pcie_hp_lock; }; #define PCIB_HP_LOCK(sc) mtx_lock((sc)->pcie_hp_lock) #define PCIB_HP_UNLOCK(sc) mtx_unlock((sc)->pcie_hp_lock) #define PCIB_HP_LOCK_ASSERT(sc) mtx_assert((sc)->pcie_hp_lock, MA_OWNED) #define PCIB_SUPPORTED_ARI_VER 1 typedef uint32_t pci_read_config_fn(int d, int b, int s, int f, int reg, int width); int host_pcib_get_busno(pci_read_config_fn read_config, int bus, int slot, int func, uint8_t *busnum); #if defined(NEW_PCIB) && defined(PCI_RES_BUS) struct resource *pci_domain_alloc_bus(int domain, device_t dev, int *rid, rman_res_t start, rman_res_t end, rman_res_t count, u_int flags); int pci_domain_adjust_bus(int domain, device_t dev, struct resource *r, rman_res_t start, rman_res_t end); int pci_domain_release_bus(int domain, device_t dev, int rid, struct resource *r); struct resource *pcib_alloc_subbus(struct pcib_secbus *bus, device_t child, int *rid, rman_res_t start, rman_res_t end, rman_res_t count, u_int flags); void pcib_free_secbus(device_t dev, struct pcib_secbus *bus); void pcib_setup_secbus(device_t dev, struct pcib_secbus *bus, int min_count); #endif int pcib_attach(device_t dev); int pcib_attach_child(device_t dev); void pcib_attach_common(device_t dev); void pcib_bridge_init(device_t dev); #ifdef NEW_PCIB const char *pcib_child_name(device_t child); #endif int pcib_child_present(device_t dev, device_t child); int pcib_detach(device_t dev); int pcib_read_ivar(device_t dev, device_t child, int which, uintptr_t *result); int pcib_write_ivar(device_t dev, device_t child, int which, uintptr_t value); struct resource *pcib_alloc_resource(device_t dev, device_t child, int type, int *rid, rman_res_t start, rman_res_t end, rman_res_t count, u_int flags); #ifdef NEW_PCIB int pcib_adjust_resource(device_t bus, device_t child, int type, struct resource *r, rman_res_t start, rman_res_t end); int pcib_release_resource(device_t dev, device_t child, int type, int rid, struct resource *r); #endif int pcib_maxslots(device_t dev); int pcib_maxfuncs(device_t dev); int pcib_route_interrupt(device_t pcib, device_t dev, int pin); int pcib_alloc_msi(device_t pcib, device_t dev, int count, int maxcount, int *irqs); int pcib_release_msi(device_t pcib, device_t dev, int count, int *irqs); int pcib_alloc_msix(device_t pcib, device_t dev, int *irq); int pcib_release_msix(device_t pcib, device_t dev, int irq); int pcib_map_msi(device_t pcib, device_t dev, int irq, uint64_t *addr, uint32_t *data); int pcib_get_id(device_t pcib, device_t dev, enum pci_id_type type, uintptr_t *id); void pcib_decode_rid(device_t pcib, uint16_t rid, int *bus, int *slot, int *func); int pcib_request_feature(device_t dev, enum pci_feature feature); int pcib_request_feature_allow(device_t pcib, device_t dev, enum pci_feature feature); #endif