xref: /freebsd/sys/dev/acpica/acpi_pcib_acpi.c (revision 1496d4a967ac421d4d1d2de84b0dbf40a7e6bacb)
115e32d5dSMike Smith /*-
215e32d5dSMike Smith  * Copyright (c) 2000 Michael Smith
315e32d5dSMike Smith  * Copyright (c) 2000 BSDi
415e32d5dSMike Smith  * All rights reserved.
515e32d5dSMike Smith  *
615e32d5dSMike Smith  * Redistribution and use in source and binary forms, with or without
715e32d5dSMike Smith  * modification, are permitted provided that the following conditions
815e32d5dSMike Smith  * are met:
915e32d5dSMike Smith  * 1. Redistributions of source code must retain the above copyright
1015e32d5dSMike Smith  *    notice, this list of conditions and the following disclaimer.
1115e32d5dSMike Smith  * 2. Redistributions in binary form must reproduce the above copyright
1215e32d5dSMike Smith  *    notice, this list of conditions and the following disclaimer in the
1315e32d5dSMike Smith  *    documentation and/or other materials provided with the distribution.
1415e32d5dSMike Smith  *
1515e32d5dSMike Smith  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1615e32d5dSMike Smith  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1715e32d5dSMike Smith  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1815e32d5dSMike Smith  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1915e32d5dSMike Smith  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2015e32d5dSMike Smith  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2115e32d5dSMike Smith  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2215e32d5dSMike Smith  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2315e32d5dSMike Smith  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2415e32d5dSMike Smith  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2515e32d5dSMike Smith  * SUCH DAMAGE.
2615e32d5dSMike Smith  */
27dad97feeSDavid E. O'Brien 
28dad97feeSDavid E. O'Brien #include <sys/cdefs.h>
29dad97feeSDavid E. O'Brien __FBSDID("$FreeBSD$");
30dad97feeSDavid E. O'Brien 
3115e32d5dSMike Smith #include "opt_acpi.h"
3215e32d5dSMike Smith #include <sys/param.h>
3315e32d5dSMike Smith #include <sys/bus.h>
344fa387b6SMike Smith #include <sys/kernel.h>
35e3aa81b8SNate Lawson #include <sys/malloc.h>
36fe12f24bSPoul-Henning Kamp #include <sys/module.h>
37fd492ee0SWarner Losh #include <sys/sysctl.h>
3815e32d5dSMike Smith 
392a191126SDavid E. O'Brien #include <contrib/dev/acpica/acpi.h>
4015e32d5dSMike Smith #include <dev/acpica/acpivar.h>
4115e32d5dSMike Smith 
4215e32d5dSMike Smith #include <machine/pci_cfgreg.h>
43cace7a2aSWarner Losh #include <dev/pci/pcivar.h>
44cace7a2aSWarner Losh #include <dev/pci/pcib_private.h>
4515e32d5dSMike Smith #include "pcib_if.h"
4615e32d5dSMike Smith 
472ccfc932SJohn Baldwin #include <dev/acpica/acpi_pcibvar.h>
482ccfc932SJohn Baldwin 
49e3aa81b8SNate Lawson /* Hooks for the ACPI CA debugging infrastructure. */
50e71b6381SMike Smith #define _COMPONENT	ACPI_BUS
512ccfc932SJohn Baldwin ACPI_MODULE_NAME("PCI_ACPI")
520ae55423SMike Smith 
532ccfc932SJohn Baldwin struct acpi_hpcib_softc {
5415e32d5dSMike Smith     device_t		ap_dev;
5515e32d5dSMike Smith     ACPI_HANDLE		ap_handle;
56d4b9ff91SNate Lawson     int			ap_flags;
5715e32d5dSMike Smith 
5815e32d5dSMike Smith     int			ap_segment;	/* analagous to Alpha 'hose' */
5915e32d5dSMike Smith     int			ap_bus;		/* bios-assigned bus number */
604fa387b6SMike Smith 
614fa387b6SMike Smith     ACPI_BUFFER		ap_prt;		/* interrupt routing table */
6215e32d5dSMike Smith };
6315e32d5dSMike Smith 
642ccfc932SJohn Baldwin static int		acpi_pcib_acpi_probe(device_t bus);
652ccfc932SJohn Baldwin static int		acpi_pcib_acpi_attach(device_t bus);
66ba835e3fSMitsuru IWASAKI static int		acpi_pcib_acpi_resume(device_t bus);
67e3aa81b8SNate Lawson static int		acpi_pcib_read_ivar(device_t dev, device_t child,
68e3aa81b8SNate Lawson 			    int which, uintptr_t *result);
69e3aa81b8SNate Lawson static int		acpi_pcib_write_ivar(device_t dev, device_t child,
70e3aa81b8SNate Lawson 			    int which, uintptr_t value);
711496d4a9SWarner Losh static uint32_t		acpi_pcib_read_config(device_t dev, u_int bus,
721496d4a9SWarner Losh 			    u_int slot, u_int func, u_int reg, int bytes);
731496d4a9SWarner Losh static void		acpi_pcib_write_config(device_t dev, u_int bus,
741496d4a9SWarner Losh 			    u_int slot, u_int func, u_int reg, uint32_t data,
751496d4a9SWarner Losh 			    int bytes);
762ccfc932SJohn Baldwin static int		acpi_pcib_acpi_route_interrupt(device_t pcib,
772ccfc932SJohn Baldwin 			    device_t dev, int pin);
788964299aSJohn Baldwin static int		acpi_pcib_alloc_msi(device_t pcib, device_t dev,
798964299aSJohn Baldwin 			    int count, int maxcount, int *irqs);
80e706f7f0SJohn Baldwin static int		acpi_pcib_map_msi(device_t pcib, device_t dev,
81e706f7f0SJohn Baldwin 			    int irq, uint64_t *addr, uint32_t *data);
828964299aSJohn Baldwin static int		acpi_pcib_alloc_msix(device_t pcib, device_t dev,
83e706f7f0SJohn Baldwin 			    int *irq);
84cd8b53edSWarner Losh static struct resource *acpi_pcib_acpi_alloc_resource(device_t dev,
85cd8b53edSWarner Losh 			    device_t child, int type, int *rid,
86cd8b53edSWarner Losh 			    u_long start, u_long end, u_long count,
87cd8b53edSWarner Losh 			    u_int flags);
8815e32d5dSMike Smith 
892ccfc932SJohn Baldwin static device_method_t acpi_pcib_acpi_methods[] = {
9015e32d5dSMike Smith     /* Device interface */
912ccfc932SJohn Baldwin     DEVMETHOD(device_probe,		acpi_pcib_acpi_probe),
922ccfc932SJohn Baldwin     DEVMETHOD(device_attach,		acpi_pcib_acpi_attach),
9315e32d5dSMike Smith     DEVMETHOD(device_shutdown,		bus_generic_shutdown),
9415e32d5dSMike Smith     DEVMETHOD(device_suspend,		bus_generic_suspend),
95ba835e3fSMitsuru IWASAKI     DEVMETHOD(device_resume,		acpi_pcib_acpi_resume),
9615e32d5dSMike Smith 
9715e32d5dSMike Smith     /* Bus interface */
9815e32d5dSMike Smith     DEVMETHOD(bus_print_child,		bus_generic_print_child),
9915e32d5dSMike Smith     DEVMETHOD(bus_read_ivar,		acpi_pcib_read_ivar),
10015e32d5dSMike Smith     DEVMETHOD(bus_write_ivar,		acpi_pcib_write_ivar),
101cd8b53edSWarner Losh     DEVMETHOD(bus_alloc_resource,	acpi_pcib_acpi_alloc_resource),
10215e32d5dSMike Smith     DEVMETHOD(bus_release_resource,	bus_generic_release_resource),
10315e32d5dSMike Smith     DEVMETHOD(bus_activate_resource,	bus_generic_activate_resource),
10415e32d5dSMike Smith     DEVMETHOD(bus_deactivate_resource,	bus_generic_deactivate_resource),
10515e32d5dSMike Smith     DEVMETHOD(bus_setup_intr,		bus_generic_setup_intr),
10615e32d5dSMike Smith     DEVMETHOD(bus_teardown_intr,	bus_generic_teardown_intr),
10715e32d5dSMike Smith 
10815e32d5dSMike Smith     /* pcib interface */
1092ccfc932SJohn Baldwin     DEVMETHOD(pcib_maxslots,		pcib_maxslots),
11015e32d5dSMike Smith     DEVMETHOD(pcib_read_config,		acpi_pcib_read_config),
11115e32d5dSMike Smith     DEVMETHOD(pcib_write_config,	acpi_pcib_write_config),
1122ccfc932SJohn Baldwin     DEVMETHOD(pcib_route_interrupt,	acpi_pcib_acpi_route_interrupt),
1138964299aSJohn Baldwin     DEVMETHOD(pcib_alloc_msi,		acpi_pcib_alloc_msi),
1149bf4c9c1SJohn Baldwin     DEVMETHOD(pcib_release_msi,		pcib_release_msi),
1158964299aSJohn Baldwin     DEVMETHOD(pcib_alloc_msix,		acpi_pcib_alloc_msix),
1169bf4c9c1SJohn Baldwin     DEVMETHOD(pcib_release_msix,	pcib_release_msix),
117e706f7f0SJohn Baldwin     DEVMETHOD(pcib_map_msi,		acpi_pcib_map_msi),
11815e32d5dSMike Smith 
11915e32d5dSMike Smith     {0, 0}
12015e32d5dSMike Smith };
12115e32d5dSMike Smith 
12204dda605SJohn Baldwin static devclass_t pcib_devclass;
12315e32d5dSMike Smith 
12404dda605SJohn Baldwin DEFINE_CLASS_0(pcib, acpi_pcib_acpi_driver, acpi_pcib_acpi_methods,
12504dda605SJohn Baldwin     sizeof(struct acpi_hpcib_softc));
1262ccfc932SJohn Baldwin DRIVER_MODULE(acpi_pcib, acpi, acpi_pcib_acpi_driver, pcib_devclass, 0, 0);
12764278df5SNate Lawson MODULE_DEPEND(acpi_pcib, acpi, 1, 1, 1);
12815e32d5dSMike Smith 
12915e32d5dSMike Smith static int
1302ccfc932SJohn Baldwin acpi_pcib_acpi_probe(device_t dev)
13115e32d5dSMike Smith {
1325fcc8a58SNate Lawson     static char *pcib_ids[] = { "PNP0A03", NULL };
13315e32d5dSMike Smith 
1345fcc8a58SNate Lawson     if (acpi_disabled("pcib") ||
1355fcc8a58SNate Lawson 	ACPI_ID_PROBE(device_get_parent(dev), dev, pcib_ids) == NULL)
1365fcc8a58SNate Lawson 	return (ENXIO);
13715e32d5dSMike Smith 
138e3aa81b8SNate Lawson     if (pci_cfgregopen() == 0)
1395e0ca577SMitsuru IWASAKI 	return (ENXIO);
1402ccfc932SJohn Baldwin     device_set_desc(dev, "ACPI Host-PCI bridge");
14115e32d5dSMike Smith     return (0);
14215e32d5dSMike Smith }
14315e32d5dSMike Smith 
14415e32d5dSMike Smith static int
1452ccfc932SJohn Baldwin acpi_pcib_acpi_attach(device_t dev)
14615e32d5dSMike Smith {
1472ccfc932SJohn Baldwin     struct acpi_hpcib_softc	*sc;
14815e32d5dSMike Smith     ACPI_STATUS			status;
1498b149b51SJohn Baldwin     u_int addr, slot, func, busok;
1509debb532SJohn Baldwin     uint8_t busno;
1510ae55423SMike Smith 
152b4a05238SPeter Wemm     ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
15315e32d5dSMike Smith 
15415e32d5dSMike Smith     sc = device_get_softc(dev);
15515e32d5dSMike Smith     sc->ap_dev = dev;
15615e32d5dSMike Smith     sc->ap_handle = acpi_get_handle(dev);
15715e32d5dSMike Smith 
15815e32d5dSMike Smith     /*
1599debb532SJohn Baldwin      * Get our base bus number by evaluating _BBN.
160c1b1f787SMike Smith      * If this doesn't work, we assume we're bus number 0.
16115e32d5dSMike Smith      *
16215e32d5dSMike Smith      * XXX note that it may also not exist in the case where we are
16315e32d5dSMike Smith      *     meant to use a private configuration space mechanism for this bus,
16415e32d5dSMike Smith      *     so we should dig out our resources and check to see if we have
16515e32d5dSMike Smith      *     anything like that.  How do we do this?
166042283a6SMike Smith      * XXX If we have the requisite information, and if we don't think the
167042283a6SMike Smith      *     default PCI configuration space handlers can deal with this bus,
168042283a6SMike Smith      *     we should attach our own handler.
169042283a6SMike Smith      * XXX invoke _REG on this for the PCI config space address space?
1709debb532SJohn Baldwin      * XXX It seems many BIOS's with multiple Host-PCI bridges do not set
1719debb532SJohn Baldwin      *     _BBN correctly.  They set _BBN to zero for all bridges.  Thus,
1729debb532SJohn Baldwin      *     if _BBN is zero and pcib0 already exists, we try to read our
1739debb532SJohn Baldwin      *     bus number from the configuration registers at address _ADR.
17415e32d5dSMike Smith      */
175c310653eSNate Lawson     status = acpi_GetInteger(sc->ap_handle, "_BBN", &sc->ap_bus);
1769debb532SJohn Baldwin     if (ACPI_FAILURE(status)) {
17715e32d5dSMike Smith 	if (status != AE_NOT_FOUND) {
1789debb532SJohn Baldwin 	    device_printf(dev, "could not evaluate _BBN - %s\n",
1799debb532SJohn Baldwin 		AcpiFormatException(status));
180c1b1f787SMike Smith 	    return_VALUE (ENXIO);
181c1b1f787SMike Smith 	} else {
182e3aa81b8SNate Lawson 	    /* If it's not found, assume 0. */
18315e32d5dSMike Smith 	    sc->ap_bus = 0;
18415e32d5dSMike Smith 	}
1858745ec57SJohn Baldwin     }
1869debb532SJohn Baldwin 
1879debb532SJohn Baldwin     /*
1889debb532SJohn Baldwin      * If the bus is zero and pcib0 already exists, read the bus number
1899debb532SJohn Baldwin      * via PCI config space.
1909debb532SJohn Baldwin      */
1919debb532SJohn Baldwin     busok = 1;
1929debb532SJohn Baldwin     if (sc->ap_bus == 0 && devclass_get_device(pcib_devclass, 0) != dev) {
1938745ec57SJohn Baldwin 	busok = 0;
194c310653eSNate Lawson 	status = acpi_GetInteger(sc->ap_handle, "_ADR", &addr);
1959debb532SJohn Baldwin 	if (ACPI_FAILURE(status)) {
1969debb532SJohn Baldwin 	    if (status != AE_NOT_FOUND) {
1979debb532SJohn Baldwin 		device_printf(dev, "could not evaluate _ADR - %s\n",
1989debb532SJohn Baldwin 		    AcpiFormatException(status));
1999debb532SJohn Baldwin 		return_VALUE (ENXIO);
2008745ec57SJohn Baldwin 	    } else
201e3aa81b8SNate Lawson 		device_printf(dev, "couldn't find _ADR\n");
2029debb532SJohn Baldwin 	} else {
2039debb532SJohn Baldwin 	    /* XXX: We assume bus 0. */
204e0a93586SJohn Baldwin 	    slot = ACPI_ADR_PCI_SLOT(addr);
205e0a93586SJohn Baldwin 	    func = ACPI_ADR_PCI_FUNC(addr);
2069debb532SJohn Baldwin 	    if (bootverbose)
2079debb532SJohn Baldwin 		device_printf(dev, "reading config registers from 0:%d:%d\n",
2089debb532SJohn Baldwin 		    slot, func);
2098745ec57SJohn Baldwin 	    if (host_pcib_get_busno(pci_cfgregread, 0, slot, func, &busno) == 0)
210e3aa81b8SNate Lawson 		device_printf(dev, "couldn't read bus number from cfg space\n");
2118745ec57SJohn Baldwin 	    else {
2129debb532SJohn Baldwin 		sc->ap_bus = busno;
2138745ec57SJohn Baldwin 		busok = 1;
2149debb532SJohn Baldwin 	    }
2159debb532SJohn Baldwin 	}
2169debb532SJohn Baldwin     }
2179debb532SJohn Baldwin 
2189debb532SJohn Baldwin     /*
2199debb532SJohn Baldwin      * If nothing else worked, hope that ACPI at least lays out the
2209debb532SJohn Baldwin      * host-PCI bridges in order and that as a result our unit number
2219debb532SJohn Baldwin      * is actually our bus number.  There are several reasons this
2229debb532SJohn Baldwin      * might not be true.
2239debb532SJohn Baldwin      */
2249debb532SJohn Baldwin     if (busok == 0) {
2259debb532SJohn Baldwin 	sc->ap_bus = device_get_unit(dev);
2269debb532SJohn Baldwin 	device_printf(dev, "trying bus number %d\n", sc->ap_bus);
227c1b1f787SMike Smith     }
22815e32d5dSMike Smith 
22915e32d5dSMike Smith     /*
2302ccfc932SJohn Baldwin      * Get our segment number by evaluating _SEG
2312ccfc932SJohn Baldwin      * It's OK for this to not exist.
232042283a6SMike Smith      */
233e3aa81b8SNate Lawson     status = acpi_GetInteger(sc->ap_handle, "_SEG", &sc->ap_segment);
234e3aa81b8SNate Lawson     if (ACPI_FAILURE(status)) {
2352ccfc932SJohn Baldwin 	if (status != AE_NOT_FOUND) {
236e3aa81b8SNate Lawson 	    device_printf(dev, "could not evaluate _SEG - %s\n",
237e3aa81b8SNate Lawson 		AcpiFormatException(status));
2380ae55423SMike Smith 	    return_VALUE (ENXIO);
23915e32d5dSMike Smith 	}
240e3aa81b8SNate Lawson 	/* If it's not found, assume 0. */
2412ccfc932SJohn Baldwin 	sc->ap_segment = 0;
24215e32d5dSMike Smith     }
24315e32d5dSMike Smith 
2442ccfc932SJohn Baldwin     return (acpi_pcib_attach(dev, &sc->ap_prt, sc->ap_bus));
24515e32d5dSMike Smith }
24615e32d5dSMike Smith 
247ba835e3fSMitsuru IWASAKI static int
248ba835e3fSMitsuru IWASAKI acpi_pcib_acpi_resume(device_t dev)
249ba835e3fSMitsuru IWASAKI {
250ba835e3fSMitsuru IWASAKI 
251e4116e93SNate Lawson     return (acpi_pcib_resume(dev));
252ba835e3fSMitsuru IWASAKI }
253ba835e3fSMitsuru IWASAKI 
2544fa387b6SMike Smith /*
2554fa387b6SMike Smith  * Support for standard PCI bridge ivars.
2564fa387b6SMike Smith  */
25715e32d5dSMike Smith static int
25815e32d5dSMike Smith acpi_pcib_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
25915e32d5dSMike Smith {
2602ccfc932SJohn Baldwin     struct acpi_hpcib_softc	*sc = device_get_softc(dev);
26115e32d5dSMike Smith 
26215e32d5dSMike Smith     switch (which) {
26355aaf894SMarius Strobl     case PCIB_IVAR_DOMAIN:
26455aaf894SMarius Strobl 	*result = 0;
26555aaf894SMarius Strobl 	return (0);
26615e32d5dSMike Smith     case PCIB_IVAR_BUS:
26715e32d5dSMike Smith 	*result = sc->ap_bus;
26815e32d5dSMike Smith 	return (0);
2692ccfc932SJohn Baldwin     case ACPI_IVAR_HANDLE:
2702ccfc932SJohn Baldwin 	*result = (uintptr_t)sc->ap_handle;
2712ccfc932SJohn Baldwin 	return (0);
272d4b9ff91SNate Lawson     case ACPI_IVAR_FLAGS:
273d4b9ff91SNate Lawson 	*result = (uintptr_t)sc->ap_flags;
274d4b9ff91SNate Lawson 	return (0);
27515e32d5dSMike Smith     }
27615e32d5dSMike Smith     return (ENOENT);
27715e32d5dSMike Smith }
27815e32d5dSMike Smith 
27915e32d5dSMike Smith static int
28015e32d5dSMike Smith acpi_pcib_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
28115e32d5dSMike Smith {
2822ccfc932SJohn Baldwin     struct acpi_hpcib_softc	*sc = device_get_softc(dev);
28315e32d5dSMike Smith 
28415e32d5dSMike Smith     switch (which) {
28555aaf894SMarius Strobl     case PCIB_IVAR_DOMAIN:
28655aaf894SMarius Strobl 	return (EINVAL);
28715e32d5dSMike Smith     case PCIB_IVAR_BUS:
28815e32d5dSMike Smith 	sc->ap_bus = value;
28915e32d5dSMike Smith 	return (0);
290d4b9ff91SNate Lawson     case ACPI_IVAR_HANDLE:
291d4b9ff91SNate Lawson 	sc->ap_handle = (ACPI_HANDLE)value;
292d4b9ff91SNate Lawson 	return (0);
293d4b9ff91SNate Lawson     case ACPI_IVAR_FLAGS:
294d4b9ff91SNate Lawson 	sc->ap_flags = (int)value;
295d4b9ff91SNate Lawson 	return (0);
29615e32d5dSMike Smith     }
29715e32d5dSMike Smith     return (ENOENT);
29815e32d5dSMike Smith }
29915e32d5dSMike Smith 
300e3aa81b8SNate Lawson static uint32_t
3011496d4a9SWarner Losh acpi_pcib_read_config(device_t dev, u_int bus, u_int slot, u_int func,
3021496d4a9SWarner Losh     u_int reg, int bytes)
30315e32d5dSMike Smith {
30415e32d5dSMike Smith     return (pci_cfgregread(bus, slot, func, reg, bytes));
30515e32d5dSMike Smith }
30615e32d5dSMike Smith 
30715e32d5dSMike Smith static void
3081496d4a9SWarner Losh acpi_pcib_write_config(device_t dev, u_int bus, u_int slot, u_int func,
3091496d4a9SWarner Losh     u_int reg, uint32_t data, int bytes)
31015e32d5dSMike Smith {
31115e32d5dSMike Smith     pci_cfgregwrite(bus, slot, func, reg, data, bytes);
31215e32d5dSMike Smith }
31315e32d5dSMike Smith 
31415e32d5dSMike Smith static int
3152ccfc932SJohn Baldwin acpi_pcib_acpi_route_interrupt(device_t pcib, device_t dev, int pin)
31615e32d5dSMike Smith {
3175e1ba6d4SJohn Baldwin     struct acpi_hpcib_softc *sc = device_get_softc(pcib);
3184fa387b6SMike Smith 
3195e1ba6d4SJohn Baldwin     return (acpi_pcib_route_interrupt(pcib, dev, pin, &sc->ap_prt));
32015e32d5dSMike Smith }
321cd8b53edSWarner Losh 
3228964299aSJohn Baldwin static int
3238964299aSJohn Baldwin acpi_pcib_alloc_msi(device_t pcib, device_t dev, int count, int maxcount,
3248964299aSJohn Baldwin     int *irqs)
3258964299aSJohn Baldwin {
3268964299aSJohn Baldwin 	device_t bus;
3278964299aSJohn Baldwin 
3288964299aSJohn Baldwin 	bus = device_get_parent(pcib);
3298964299aSJohn Baldwin 	return (PCIB_ALLOC_MSI(device_get_parent(bus), dev, count, maxcount,
3308964299aSJohn Baldwin 	    irqs));
3318964299aSJohn Baldwin }
3328964299aSJohn Baldwin 
3338964299aSJohn Baldwin static int
334e706f7f0SJohn Baldwin acpi_pcib_alloc_msix(device_t pcib, device_t dev, int *irq)
3358964299aSJohn Baldwin {
3368964299aSJohn Baldwin 	device_t bus;
3378964299aSJohn Baldwin 
3388964299aSJohn Baldwin 	bus = device_get_parent(pcib);
339e706f7f0SJohn Baldwin 	return (PCIB_ALLOC_MSIX(device_get_parent(bus), dev, irq));
340e706f7f0SJohn Baldwin }
341e706f7f0SJohn Baldwin 
342e706f7f0SJohn Baldwin static int
343e706f7f0SJohn Baldwin acpi_pcib_map_msi(device_t pcib, device_t dev, int irq, uint64_t *addr,
344e706f7f0SJohn Baldwin     uint32_t *data)
345e706f7f0SJohn Baldwin {
346e706f7f0SJohn Baldwin 	device_t bus;
347e706f7f0SJohn Baldwin 
348e706f7f0SJohn Baldwin 	bus = device_get_parent(pcib);
349e706f7f0SJohn Baldwin 	return (PCIB_MAP_MSI(device_get_parent(bus), dev, irq, addr, data));
3508964299aSJohn Baldwin }
3518964299aSJohn Baldwin 
3525b8c4719SNate Lawson static u_long acpi_host_mem_start = 0x80000000;
353b0e1e474SDag-Erling Smørgrav TUNABLE_ULONG("hw.acpi.host_mem_start", &acpi_host_mem_start);
354fd492ee0SWarner Losh 
355cd8b53edSWarner Losh struct resource *
356cd8b53edSWarner Losh acpi_pcib_acpi_alloc_resource(device_t dev, device_t child, int type, int *rid,
357cd8b53edSWarner Losh     u_long start, u_long end, u_long count, u_int flags)
358cd8b53edSWarner Losh {
359cd8b53edSWarner Losh     /*
3605cee9db3SWarner Losh      * If no memory preference is given, use upper 32MB slot most
361cd8b53edSWarner Losh      * bioses use for their memory window.  Typically other bridges
362cd8b53edSWarner Losh      * before us get in the way to assert their preferences on memory.
363cd8b53edSWarner Losh      * Hardcoding like this sucks, so a more MD/MI way needs to be
364dfbaec0aSWarner Losh      * found to do it.  This is typically only used on older laptops
3655cee9db3SWarner Losh      * that don't have pci busses behind pci bridge, so assuming > 32MB
366dfbaec0aSWarner Losh      * is liekly OK.
367cd8b53edSWarner Losh      */
368cd8b53edSWarner Losh     if (type == SYS_RES_MEMORY && start == 0UL && end == ~0UL)
369fd492ee0SWarner Losh 	start = acpi_host_mem_start;
370dca20690SWarner Losh     if (type == SYS_RES_IOPORT && start == 0UL && end == ~0UL)
371dca20690SWarner Losh 	start = 0x1000;
372cd8b53edSWarner Losh     return (bus_generic_alloc_resource(dev, child, type, rid, start, end,
373cd8b53edSWarner Losh 	count, flags));
374cd8b53edSWarner Losh }
375