nexus.c revision 157894
1139790Simp/*- 284124Sdfr * Copyright 1998 Massachusetts Institute of Technology 384124Sdfr * 484124Sdfr * Permission to use, copy, modify, and distribute this software and 584124Sdfr * its documentation for any purpose and without fee is hereby 684124Sdfr * granted, provided that both the above copyright notice and this 784124Sdfr * permission notice appear in all copies, that both the above 884124Sdfr * copyright notice and this permission notice appear in all 984124Sdfr * supporting documentation, and that the name of M.I.T. not be used 1084124Sdfr * in advertising or publicity pertaining to distribution of the 1184124Sdfr * software without specific, written prior permission. M.I.T. makes 1284124Sdfr * no representations about the suitability of this software for any 1384124Sdfr * purpose. It is provided "as is" without express or implied 1484124Sdfr * warranty. 1584124Sdfr * 1684124Sdfr * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 1784124Sdfr * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 1884124Sdfr * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 1984124Sdfr * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 2084124Sdfr * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2184124Sdfr * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2284124Sdfr * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 2384124Sdfr * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 2484124Sdfr * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 2584124Sdfr * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 2684124Sdfr * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2784124Sdfr * SUCH DAMAGE. 2884124Sdfr * 2984124Sdfr * $FreeBSD: head/sys/ia64/ia64/nexus.c 157894 2006-04-20 04:18:30Z imp $ 3084124Sdfr */ 3184124Sdfr 3284124Sdfr/* 3384124Sdfr * This code implements a `root nexus' for Intel Architecture 3484124Sdfr * machines. The function of the root nexus is to serve as an 3584124Sdfr * attachment point for both processors and buses, and to manage 3684124Sdfr * resources which are common to all of them. In particular, 3784124Sdfr * this code implements the core resource managers for interrupt 3884124Sdfr * requests, DMA requests (which rightfully should be a part of the 3984124Sdfr * ISA code but it's easier to do it here for now), I/O port addresses, 4084124Sdfr * and I/O memory address space. 4184124Sdfr */ 4284124Sdfr 4384124Sdfr#include <sys/param.h> 4484124Sdfr#include <sys/systm.h> 4584124Sdfr#include <sys/bus.h> 4684124Sdfr#include <sys/kernel.h> 4784124Sdfr#include <sys/malloc.h> 4884124Sdfr#include <sys/module.h> 4984124Sdfr#include <machine/bus.h> 5084124Sdfr#include <sys/rman.h> 5184124Sdfr#include <sys/interrupt.h> 5284124Sdfr 5384124Sdfr#include <vm/vm.h> 5484124Sdfr#include <vm/pmap.h> 5584124Sdfr 56119970Smarcel#include <machine/intr.h> 5784124Sdfr#include <machine/nexusvar.h> 58119970Smarcel#include <machine/pmap.h> 5984124Sdfr#include <machine/resource.h> 60119970Smarcel#include <machine/sapicvar.h> 61119970Smarcel#include <machine/vmparam.h> 6284124Sdfr 6384541Sdfr#include <isa/isareg.h> 6484124Sdfr#include <sys/rtprio.h> 6584124Sdfr 6684124Sdfrstatic MALLOC_DEFINE(M_NEXUSDEV, "nexusdev", "Nexus device"); 6784124Sdfrstruct nexus_device { 6884124Sdfr struct resource_list nx_resources; 6984124Sdfr int nx_pcibus; 7084124Sdfr}; 7184124Sdfr 7284124Sdfr#define DEVTONX(dev) ((struct nexus_device *)device_get_ivars(dev)) 7384124Sdfr 7484124Sdfrstatic struct rman irq_rman, drq_rman, port_rman, mem_rman; 7584124Sdfr 7684124Sdfrstatic int nexus_probe(device_t); 7784124Sdfrstatic int nexus_attach(device_t); 7884124Sdfrstatic int nexus_print_resources(struct resource_list *rl, const char *name, int type, 7984124Sdfr const char *format); 8084124Sdfrstatic int nexus_print_all_resources(device_t dev); 8184124Sdfrstatic int nexus_print_child(device_t, device_t); 8284124Sdfrstatic device_t nexus_add_child(device_t bus, int order, const char *name, 8384124Sdfr int unit); 8484124Sdfrstatic struct resource *nexus_alloc_resource(device_t, device_t, int, int *, 8584124Sdfr u_long, u_long, u_long, u_int); 8684124Sdfrstatic int nexus_read_ivar(device_t, device_t, int, uintptr_t *); 8784124Sdfrstatic int nexus_write_ivar(device_t, device_t, int, uintptr_t); 8884124Sdfrstatic int nexus_activate_resource(device_t, device_t, int, int, 8984124Sdfr struct resource *); 9084124Sdfrstatic int nexus_deactivate_resource(device_t, device_t, int, int, 9184124Sdfr struct resource *); 9284124Sdfrstatic int nexus_release_resource(device_t, device_t, int, int, 9384124Sdfr struct resource *); 9484124Sdfrstatic int nexus_setup_intr(device_t, device_t, struct resource *, int flags, 9584124Sdfr void (*)(void *), void *, void **); 9684124Sdfrstatic int nexus_teardown_intr(device_t, device_t, struct resource *, 9784124Sdfr void *); 98134263Snjlstatic struct resource_list *nexus_get_reslist(device_t dev, device_t child); 9984124Sdfrstatic int nexus_set_resource(device_t, device_t, int, int, u_long, u_long); 100119970Smarcelstatic int nexus_get_resource(device_t, device_t, int, int, u_long *, 101119970Smarcel u_long *); 10284124Sdfrstatic void nexus_delete_resource(device_t, device_t, int, int); 103119970Smarcelstatic int nexus_config_intr(device_t, int, enum intr_trigger, 104119970Smarcel enum intr_polarity); 10584124Sdfr 10684124Sdfrstatic device_method_t nexus_methods[] = { 10784124Sdfr /* Device interface */ 10884124Sdfr DEVMETHOD(device_probe, nexus_probe), 10984124Sdfr DEVMETHOD(device_attach, nexus_attach), 11084124Sdfr DEVMETHOD(device_detach, bus_generic_detach), 11184124Sdfr DEVMETHOD(device_shutdown, bus_generic_shutdown), 11284124Sdfr DEVMETHOD(device_suspend, bus_generic_suspend), 11384124Sdfr DEVMETHOD(device_resume, bus_generic_resume), 11484124Sdfr 11584124Sdfr /* Bus interface */ 11684124Sdfr DEVMETHOD(bus_print_child, nexus_print_child), 11784124Sdfr DEVMETHOD(bus_add_child, nexus_add_child), 11884124Sdfr DEVMETHOD(bus_read_ivar, nexus_read_ivar), 11984124Sdfr DEVMETHOD(bus_write_ivar, nexus_write_ivar), 12084124Sdfr DEVMETHOD(bus_alloc_resource, nexus_alloc_resource), 12184124Sdfr DEVMETHOD(bus_release_resource, nexus_release_resource), 12284124Sdfr DEVMETHOD(bus_activate_resource, nexus_activate_resource), 12384124Sdfr DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource), 12484124Sdfr DEVMETHOD(bus_setup_intr, nexus_setup_intr), 12584124Sdfr DEVMETHOD(bus_teardown_intr, nexus_teardown_intr), 126134263Snjl DEVMETHOD(bus_get_resource_list, nexus_get_reslist), 12784124Sdfr DEVMETHOD(bus_set_resource, nexus_set_resource), 12884124Sdfr DEVMETHOD(bus_get_resource, nexus_get_resource), 12984124Sdfr DEVMETHOD(bus_delete_resource, nexus_delete_resource), 130119970Smarcel DEVMETHOD(bus_config_intr, nexus_config_intr), 13184124Sdfr 13284124Sdfr { 0, 0 } 13384124Sdfr}; 13484124Sdfr 13584124Sdfrstatic driver_t nexus_driver = { 13684124Sdfr "nexus", 13784124Sdfr nexus_methods, 13884124Sdfr 1, /* no softc */ 13984124Sdfr}; 14084124Sdfrstatic devclass_t nexus_devclass; 14184124Sdfr 14284124SdfrDRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0); 14384124Sdfr 14484124Sdfrstatic int 14584124Sdfrnexus_probe(device_t dev) 14684124Sdfr{ 14784124Sdfr 14884124Sdfr device_quiet(dev); /* suppress attach message for neatness */ 14984124Sdfr 15084124Sdfr /* 15184124Sdfr * XXX working notes: 15284124Sdfr * 15384124Sdfr * - IRQ resource creation should be moved to the PIC/APIC driver. 15484124Sdfr * - DRQ resource creation should be moved to the DMAC driver. 15584124Sdfr * - The above should be sorted to probe earlier than any child busses. 15684124Sdfr * 15784124Sdfr * - Leave I/O and memory creation here, as child probes may need them. 15884124Sdfr * (especially eg. ACPI) 15984124Sdfr */ 16084124Sdfr 16184124Sdfr /* 16284124Sdfr * IRQ's are on the mainboard on old systems, but on the ISA part 16384124Sdfr * of PCI->ISA bridges. There would be multiple sets of IRQs on 16484124Sdfr * multi-ISA-bus systems. PCI interrupts are routed to the ISA 16584124Sdfr * component, so in a way, PCI can be a partial child of an ISA bus(!). 16684124Sdfr * APIC interrupts are global though. 16784124Sdfr * 16884124Sdfr * XXX We depend on the AT PIC driver correctly claiming IRQ 2 16984124Sdfr * to prevent its reuse elsewhere in the !APIC_IO case. 17084124Sdfr */ 17184124Sdfr irq_rman.rm_start = 0; 17284124Sdfr irq_rman.rm_type = RMAN_ARRAY; 17384124Sdfr irq_rman.rm_descr = "Interrupt request lines"; 174100398Speter irq_rman.rm_end = 255; 17584124Sdfr if (rman_init(&irq_rman) 17684124Sdfr || rman_manage_region(&irq_rman, 17784124Sdfr irq_rman.rm_start, irq_rman.rm_end)) 17884124Sdfr panic("nexus_probe irq_rman"); 17984124Sdfr 18084124Sdfr /* 18184124Sdfr * ISA DMA on PCI systems is implemented in the ISA part of each 18284124Sdfr * PCI->ISA bridge and the channels can be duplicated if there are 18384124Sdfr * multiple bridges. (eg: laptops with docking stations) 18484124Sdfr */ 18584124Sdfr drq_rman.rm_start = 0; 18684124Sdfr drq_rman.rm_end = 7; 18784124Sdfr drq_rman.rm_type = RMAN_ARRAY; 18884124Sdfr drq_rman.rm_descr = "DMA request lines"; 18984124Sdfr /* XXX drq 0 not available on some machines */ 19084124Sdfr if (rman_init(&drq_rman) 19184124Sdfr || rman_manage_region(&drq_rman, 19284124Sdfr drq_rman.rm_start, drq_rman.rm_end)) 19384124Sdfr panic("nexus_probe drq_rman"); 19484124Sdfr 19584124Sdfr /* 19684124Sdfr * However, IO ports and Memory truely are global at this level, 19784124Sdfr * as are APIC interrupts (however many IO APICS there turn out 19884124Sdfr * to be on large systems..) 19984124Sdfr */ 20084124Sdfr port_rman.rm_start = 0; 20184124Sdfr port_rman.rm_end = 0xffff; 20284124Sdfr port_rman.rm_type = RMAN_ARRAY; 20384124Sdfr port_rman.rm_descr = "I/O ports"; 20484124Sdfr if (rman_init(&port_rman) 20584124Sdfr || rman_manage_region(&port_rman, 0, 0xffff)) 20684124Sdfr panic("nexus_probe port_rman"); 20784124Sdfr 20884124Sdfr mem_rman.rm_start = 0; 20984124Sdfr mem_rman.rm_end = ~0u; 21084124Sdfr mem_rman.rm_type = RMAN_ARRAY; 21184124Sdfr mem_rman.rm_descr = "I/O memory addresses"; 21284124Sdfr if (rman_init(&mem_rman) 21384124Sdfr || rman_manage_region(&mem_rman, 0, ~0)) 21484124Sdfr panic("nexus_probe mem_rman"); 21584124Sdfr 21684124Sdfr return bus_generic_probe(dev); 21784124Sdfr} 21884124Sdfr 21984124Sdfrstatic int 22084124Sdfrnexus_attach(device_t dev) 22184124Sdfr{ 22284541Sdfr /* 22384541Sdfr * Mask the legacy PICs - we will use the I/O SAPIC for interrupt. 22484541Sdfr */ 22584541Sdfr outb(IO_ICU1+1, 0xff); 22684541Sdfr outb(IO_ICU2+1, 0xff); 22784541Sdfr 22884124Sdfr bus_generic_attach(dev); 22984124Sdfr return 0; 23084124Sdfr} 23184124Sdfr 23284124Sdfrstatic int 23384124Sdfrnexus_print_resources(struct resource_list *rl, const char *name, int type, 23484124Sdfr const char *format) 23584124Sdfr{ 23684124Sdfr struct resource_list_entry *rle; 23784124Sdfr int printed, retval; 23884124Sdfr 23984124Sdfr printed = 0; 24084124Sdfr retval = 0; 24184124Sdfr /* Yes, this is kinda cheating */ 242143867Snjl STAILQ_FOREACH(rle, rl, link) { 24384124Sdfr if (rle->type == type) { 24484124Sdfr if (printed == 0) 24584124Sdfr retval += printf(" %s ", name); 24684124Sdfr else if (printed > 0) 24784124Sdfr retval += printf(","); 24884124Sdfr printed++; 24984124Sdfr retval += printf(format, rle->start); 25084124Sdfr if (rle->count > 1) { 25184124Sdfr retval += printf("-"); 25284124Sdfr retval += printf(format, rle->start + 25384124Sdfr rle->count - 1); 25484124Sdfr } 25584124Sdfr } 25684124Sdfr } 25784124Sdfr return retval; 25884124Sdfr} 25984124Sdfr 26084124Sdfrstatic int 26184124Sdfrnexus_print_all_resources(device_t dev) 26284124Sdfr{ 26384124Sdfr struct nexus_device *ndev = DEVTONX(dev); 26484124Sdfr struct resource_list *rl = &ndev->nx_resources; 26584124Sdfr int retval = 0; 26684124Sdfr 267143867Snjl if (STAILQ_FIRST(rl) || ndev->nx_pcibus != -1) 26884124Sdfr retval += printf(" at"); 26984124Sdfr 27084124Sdfr retval += nexus_print_resources(rl, "port", SYS_RES_IOPORT, "%#lx"); 27184124Sdfr retval += nexus_print_resources(rl, "iomem", SYS_RES_MEMORY, "%#lx"); 27284124Sdfr retval += nexus_print_resources(rl, "irq", SYS_RES_IRQ, "%ld"); 27384124Sdfr 27484124Sdfr return retval; 27584124Sdfr} 27684124Sdfr 27784124Sdfrstatic int 27884124Sdfrnexus_print_child(device_t bus, device_t child) 27984124Sdfr{ 28084124Sdfr struct nexus_device *ndev = DEVTONX(child); 28184124Sdfr int retval = 0; 28284124Sdfr 28384124Sdfr retval += bus_print_child_header(bus, child); 28484124Sdfr retval += nexus_print_all_resources(child); 28584124Sdfr if (ndev->nx_pcibus != -1) 28684124Sdfr retval += printf(" pcibus %d", ndev->nx_pcibus); 287136521Snjl if (device_get_flags(child)) 288136521Snjl retval += printf(" flags %#x", device_get_flags(child)); 28984124Sdfr retval += printf(" on motherboard\n"); /* XXX "motherboard", ick */ 29084124Sdfr 29184124Sdfr return (retval); 29284124Sdfr} 29384124Sdfr 29484124Sdfrstatic device_t 29584124Sdfrnexus_add_child(device_t bus, int order, const char *name, int unit) 29684124Sdfr{ 29784124Sdfr device_t child; 29884124Sdfr struct nexus_device *ndev; 29984124Sdfr 30084124Sdfr ndev = malloc(sizeof(struct nexus_device), M_NEXUSDEV, M_NOWAIT|M_ZERO); 30184124Sdfr if (!ndev) 30284124Sdfr return(0); 30384124Sdfr resource_list_init(&ndev->nx_resources); 30484124Sdfr ndev->nx_pcibus = -1; 30584124Sdfr 30684124Sdfr child = device_add_child_ordered(bus, order, name, unit); 30784124Sdfr 30884124Sdfr /* should we free this in nexus_child_detached? */ 30984124Sdfr device_set_ivars(child, ndev); 31084124Sdfr 31184124Sdfr return(child); 31284124Sdfr} 31384124Sdfr 31484124Sdfrstatic int 31584124Sdfrnexus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 31684124Sdfr{ 31784124Sdfr struct nexus_device *ndev = DEVTONX(child); 31884124Sdfr 31984124Sdfr switch (which) { 32084124Sdfr case NEXUS_IVAR_PCIBUS: 32184124Sdfr *result = ndev->nx_pcibus; 32284124Sdfr break; 32384124Sdfr default: 32484124Sdfr return ENOENT; 32584124Sdfr } 32684124Sdfr return 0; 32784124Sdfr} 32884124Sdfr 32984124Sdfr 33084124Sdfrstatic int 33184124Sdfrnexus_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 33284124Sdfr{ 33384124Sdfr struct nexus_device *ndev = DEVTONX(child); 33484124Sdfr 33584124Sdfr switch (which) { 33684124Sdfr case NEXUS_IVAR_PCIBUS: 33784124Sdfr ndev->nx_pcibus = value; 33884124Sdfr break; 33984124Sdfr default: 34084124Sdfr return ENOENT; 34184124Sdfr } 34284124Sdfr return 0; 34384124Sdfr} 34484124Sdfr 34584124Sdfr 34684124Sdfr/* 34784124Sdfr * Allocate a resource on behalf of child. NB: child is usually going to be a 34884124Sdfr * child of one of our descendants, not a direct child of nexus0. 34984124Sdfr * (Exceptions include npx.) 35084124Sdfr */ 35184124Sdfrstatic struct resource * 35284124Sdfrnexus_alloc_resource(device_t bus, device_t child, int type, int *rid, 35384124Sdfr u_long start, u_long end, u_long count, u_int flags) 35484124Sdfr{ 35584124Sdfr struct nexus_device *ndev = DEVTONX(child); 35684124Sdfr struct resource *rv; 35784124Sdfr struct resource_list_entry *rle; 35884124Sdfr struct rman *rm; 35984124Sdfr int needactivate = flags & RF_ACTIVE; 36084124Sdfr 36184124Sdfr /* 36284124Sdfr * If this is an allocation of the "default" range for a given RID, and 36384124Sdfr * we know what the resources for this device are (ie. they aren't maintained 36484124Sdfr * by a child bus), then work out the start/end values. 36584124Sdfr */ 36684124Sdfr if ((start == 0UL) && (end == ~0UL) && (count == 1)) { 36784124Sdfr if (ndev == NULL) 36884124Sdfr return(NULL); 36984124Sdfr rle = resource_list_find(&ndev->nx_resources, type, *rid); 37084124Sdfr if (rle == NULL) 37184124Sdfr return(NULL); 37284124Sdfr start = rle->start; 37384124Sdfr end = rle->end; 37484124Sdfr count = rle->count; 37584124Sdfr } 37684124Sdfr 37784124Sdfr flags &= ~RF_ACTIVE; 37884124Sdfr 37984124Sdfr switch (type) { 38084124Sdfr case SYS_RES_IRQ: 38184124Sdfr rm = &irq_rman; 38284124Sdfr break; 38384124Sdfr 38484124Sdfr case SYS_RES_DRQ: 38584124Sdfr rm = &drq_rman; 38684124Sdfr break; 38784124Sdfr 38884124Sdfr case SYS_RES_IOPORT: 38984124Sdfr rm = &port_rman; 39084124Sdfr break; 39184124Sdfr 39284124Sdfr case SYS_RES_MEMORY: 39384124Sdfr rm = &mem_rman; 39484124Sdfr break; 39584124Sdfr 39684124Sdfr default: 39784124Sdfr return 0; 39884124Sdfr } 39984124Sdfr 40084124Sdfr rv = rman_reserve_resource(rm, start, end, count, flags, child); 40184124Sdfr if (rv == 0) 40284124Sdfr return 0; 40384124Sdfr 404157894Simp rman_set_rid(rv, *rid); 40584124Sdfr if (type == SYS_RES_MEMORY) { 40684124Sdfr rman_set_bustag(rv, IA64_BUS_SPACE_MEM); 40784124Sdfr } else if (type == SYS_RES_IOPORT) { 40884124Sdfr rman_set_bustag(rv, IA64_BUS_SPACE_IO); 40984124Sdfr /* IBM-PC: the type of bus_space_handle_t is u_int */ 410151006Sphk rman_set_bushandle(rv, rman_get_start(rv)); 41184124Sdfr } 41284124Sdfr 41384124Sdfr if (needactivate) { 41484124Sdfr if (bus_activate_resource(child, type, *rid, rv)) { 41584124Sdfr rman_release_resource(rv); 41684124Sdfr return 0; 41784124Sdfr } 41884124Sdfr } 41984124Sdfr 42084124Sdfr return rv; 42184124Sdfr} 42284124Sdfr 42384124Sdfrstatic int 42484124Sdfrnexus_activate_resource(device_t bus, device_t child, int type, int rid, 42584124Sdfr struct resource *r) 42684124Sdfr{ 42784124Sdfr /* 42884124Sdfr * If this is a memory resource, map it into the kernel. 42984124Sdfr */ 43084124Sdfr if (rman_get_bustag(r) == IA64_BUS_SPACE_MEM) { 43184124Sdfr vm_offset_t paddr = rman_get_start(r); 43284124Sdfr vm_offset_t psize = rman_get_size(r); 43384124Sdfr caddr_t vaddr = 0; 43484124Sdfr 43584124Sdfr vaddr = pmap_mapdev(paddr, psize); 43684124Sdfr rman_set_virtual(r, vaddr); 43784124Sdfr rman_set_bushandle(r, (bus_space_handle_t) paddr); 43884124Sdfr } 43984124Sdfr return (rman_activate_resource(r)); 44084124Sdfr} 44184124Sdfr 44284124Sdfrstatic int 44384124Sdfrnexus_deactivate_resource(device_t bus, device_t child, int type, int rid, 44484124Sdfr struct resource *r) 44584124Sdfr{ 44684124Sdfr 44784124Sdfr return (rman_deactivate_resource(r)); 44884124Sdfr} 44984124Sdfr 45084124Sdfrstatic int 45184124Sdfrnexus_release_resource(device_t bus, device_t child, int type, int rid, 45284124Sdfr struct resource *r) 45384124Sdfr{ 45484124Sdfr if (rman_get_flags(r) & RF_ACTIVE) { 45584124Sdfr int error = bus_deactivate_resource(child, type, rid, r); 45684124Sdfr if (error) 45784124Sdfr return error; 45884124Sdfr } 45984124Sdfr return (rman_release_resource(r)); 46084124Sdfr} 46184124Sdfr 46284124Sdfr/* 46384124Sdfr * Currently this uses the really grody interface from kern/kern_intr.c 46484124Sdfr * (which really doesn't belong in kern/anything.c). Eventually, all of 46584124Sdfr * the code in kern_intr.c and machdep_intr.c should get moved here, since 46684124Sdfr * this is going to be the official interface. 46784124Sdfr */ 46884124Sdfrstatic int 46984124Sdfrnexus_setup_intr(device_t bus, device_t child, struct resource *irq, 47084124Sdfr int flags, void (*ihand)(void *), void *arg, void **cookiep) 47184124Sdfr{ 47284124Sdfr driver_t *driver; 47384124Sdfr int error; 47484124Sdfr 47584124Sdfr /* somebody tried to setup an irq that failed to allocate! */ 47684124Sdfr if (irq == NULL) 47784124Sdfr panic("nexus_setup_intr: NULL irq resource!"); 47884124Sdfr 47984124Sdfr *cookiep = 0; 480151006Sphk if ((rman_get_flags(irq) & RF_SHAREABLE) == 0) 48184124Sdfr flags |= INTR_EXCL; 48284124Sdfr 48384124Sdfr driver = device_get_driver(child); 48484124Sdfr 48584124Sdfr /* 48684124Sdfr * We depend here on rman_activate_resource() being idempotent. 48784124Sdfr */ 48884124Sdfr error = rman_activate_resource(irq); 48984124Sdfr if (error) 49084124Sdfr return (error); 49184124Sdfr 492151006Sphk error = ia64_setup_intr(device_get_nameunit(child), 493151006Sphk rman_get_start(irq), ihand, arg, flags, cookiep, 0); 49484124Sdfr 49584124Sdfr return (error); 49684124Sdfr} 49784124Sdfr 49884124Sdfrstatic int 49984124Sdfrnexus_teardown_intr(device_t dev, device_t child, struct resource *r, void *ih) 50084124Sdfr{ 50184124Sdfr#if 0 50284124Sdfr return (inthand_remove(ih)); 50384124Sdfr#else 50484124Sdfr return 0; 50584124Sdfr#endif 50684124Sdfr} 50784124Sdfr 508134263Snjlstatic struct resource_list * 509134263Snjlnexus_get_reslist(device_t dev, device_t child) 510134263Snjl{ 511134263Snjl struct nexus_device *ndev = DEVTONX(child); 512134263Snjl 513134263Snjl return (&ndev->nx_resources); 514134263Snjl} 515134263Snjl 51684124Sdfrstatic int 51784124Sdfrnexus_set_resource(device_t dev, device_t child, int type, int rid, u_long start, u_long count) 51884124Sdfr{ 51984124Sdfr struct nexus_device *ndev = DEVTONX(child); 52084124Sdfr struct resource_list *rl = &ndev->nx_resources; 52184124Sdfr 52284124Sdfr /* XXX this should return a success/failure indicator */ 52384124Sdfr resource_list_add(rl, type, rid, start, start + count - 1, count); 52484124Sdfr return(0); 52584124Sdfr} 52684124Sdfr 52784124Sdfrstatic int 52884124Sdfrnexus_get_resource(device_t dev, device_t child, int type, int rid, u_long *startp, u_long *countp) 52984124Sdfr{ 53084124Sdfr struct nexus_device *ndev = DEVTONX(child); 53184124Sdfr struct resource_list *rl = &ndev->nx_resources; 53284124Sdfr struct resource_list_entry *rle; 53384124Sdfr 53484124Sdfr rle = resource_list_find(rl, type, rid); 53584124Sdfr device_printf(child, "type %d rid %d startp %p countp %p - got %p\n", 53684124Sdfr type, rid, startp, countp, rle); 53784124Sdfr if (!rle) 53884124Sdfr return(ENOENT); 53984124Sdfr if (startp) 54084124Sdfr *startp = rle->start; 54184124Sdfr if (countp) 54284124Sdfr *countp = rle->count; 54384124Sdfr return(0); 54484124Sdfr} 54584124Sdfr 54684124Sdfrstatic void 54784124Sdfrnexus_delete_resource(device_t dev, device_t child, int type, int rid) 54884124Sdfr{ 54984124Sdfr struct nexus_device *ndev = DEVTONX(child); 55084124Sdfr struct resource_list *rl = &ndev->nx_resources; 55184124Sdfr 55284124Sdfr resource_list_delete(rl, type, rid); 55384124Sdfr} 55484124Sdfr 555119970Smarcelstatic int 556119970Smarcelnexus_config_intr(device_t dev, int irq, enum intr_trigger trig, 557119970Smarcel enum intr_polarity pol) 558119970Smarcel{ 559119970Smarcel 560119970Smarcel return (sapic_config_intr(irq, trig, pol)); 561119970Smarcel} 562119970Smarcel 56384124Sdfr#if 0 56484124Sdfr 56584124Sdfr/* 56684124Sdfr * Placeholder which claims PnP 'devices' which describe system 56784124Sdfr * resources. 56884124Sdfr */ 56984124Sdfrstatic struct isa_pnp_id sysresource_ids[] = { 57084124Sdfr { 0x010cd041 /* PNP0c01 */, "System Memory" }, 57184124Sdfr { 0x020cd041 /* PNP0c02 */, "System Resource" }, 57284124Sdfr { 0 } 57384124Sdfr}; 57484124Sdfr 57584124Sdfrstatic int 57684124Sdfrsysresource_probe(device_t dev) 57784124Sdfr{ 57884124Sdfr int result; 57984124Sdfr 58084124Sdfr if ((result = ISA_PNP_PROBE(device_get_parent(dev), dev, sysresource_ids)) <= 0) { 58184124Sdfr device_quiet(dev); 58284124Sdfr } 58384124Sdfr return(result); 58484124Sdfr} 58584124Sdfr 58684124Sdfrstatic int 58784124Sdfrsysresource_attach(device_t dev) 58884124Sdfr{ 58984124Sdfr return(0); 59084124Sdfr} 59184124Sdfr 59284124Sdfrstatic device_method_t sysresource_methods[] = { 59384124Sdfr /* Device interface */ 59484124Sdfr DEVMETHOD(device_probe, sysresource_probe), 59584124Sdfr DEVMETHOD(device_attach, sysresource_attach), 59684124Sdfr DEVMETHOD(device_detach, bus_generic_detach), 59784124Sdfr DEVMETHOD(device_shutdown, bus_generic_shutdown), 59884124Sdfr DEVMETHOD(device_suspend, bus_generic_suspend), 59984124Sdfr DEVMETHOD(device_resume, bus_generic_resume), 60084124Sdfr { 0, 0 } 60184124Sdfr}; 60284124Sdfr 60384124Sdfrstatic driver_t sysresource_driver = { 60484124Sdfr "sysresource", 60584124Sdfr sysresource_methods, 60684124Sdfr 1, /* no softc */ 60784124Sdfr}; 60884124Sdfr 60984124Sdfrstatic devclass_t sysresource_devclass; 61084124Sdfr 61184124SdfrDRIVER_MODULE(sysresource, isa, sysresource_driver, sysresource_devclass, 0, 0); 61284124Sdfr 61384124Sdfr#endif 614