159 lines
4.3 KiB
C
159 lines
4.3 KiB
C
/* $NetBSD: acpi_fdt.c,v 1.16 2020/10/10 15:34:05 jmcneill Exp $ */
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/*-
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* Copyright (c) 2015-2017 Jared McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "pci.h"
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#include "opt_efi.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: acpi_fdt.c,v 1.16 2020/10/10 15:34:05 jmcneill Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <sys/intr.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/lwp.h>
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#include <sys/kmem.h>
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#include <sys/queue.h>
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#include <sys/sysctl.h>
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#include <dev/fdt/fdtvar.h>
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#include <dev/acpi/acpivar.h>
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#include <dev/pci/pcivar.h>
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#include <arm/arm/psci.h>
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#include <arm/acpi/acpi_pci_machdep.h>
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#ifdef EFI_RUNTIME
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#include <arm/arm/efi_runtime.h>
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#endif
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static int acpi_fdt_match(device_t, cfdata_t, void *);
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static void acpi_fdt_attach(device_t, device_t, void *);
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static void acpi_fdt_poweroff(device_t);
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static void acpi_fdt_sysctl_init(void);
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extern struct arm32_bus_dma_tag acpi_coherent_dma_tag;
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static uint64_t smbios_table = 0;
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static const char * const compatible[] = {
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"netbsd,acpi",
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NULL
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};
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static const struct fdtbus_power_controller_func acpi_fdt_power_funcs = {
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.poweroff = acpi_fdt_poweroff,
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};
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CFATTACH_DECL_NEW(acpi_fdt, 0, acpi_fdt_match, acpi_fdt_attach, NULL, NULL);
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static int
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acpi_fdt_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct fdt_attach_args * const faa = aux;
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return of_compatible(faa->faa_phandle, compatible) >= 0;
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}
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static void
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acpi_fdt_attach(device_t parent, device_t self, void *aux)
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{
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struct fdt_attach_args * const faa = aux;
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struct acpibus_attach_args aa;
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aprint_naive("\n");
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aprint_normal("\n");
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fdtbus_register_power_controller(self, faa->faa_phandle,
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&acpi_fdt_power_funcs);
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if (!acpi_probe())
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panic("ACPI subsystem failed to initialize");
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memset(&aa, 0, sizeof(aa));
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#if NPCI > 0
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aa.aa_pciflags =
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/*PCI_FLAGS_IO_OKAY |*/ PCI_FLAGS_MEM_OKAY |
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PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY |
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PCI_FLAGS_MWI_OKAY;
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#ifdef __HAVE_PCI_MSI_MSIX
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aa.aa_pciflags |= PCI_FLAGS_MSI_OKAY | PCI_FLAGS_MSIX_OKAY;
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#endif
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#endif
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aa.aa_memt = faa->faa_bst;
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aa.aa_dmat = NULL;
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aa.aa_dmat64 = NULL;
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config_found_ia(self, "acpibus", &aa, 0);
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acpi_fdt_sysctl_init();
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}
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static void
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acpi_fdt_poweroff(device_t dev)
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{
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delay(500000);
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#ifdef EFI_RUNTIME
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if (arm_efirt_reset(EFI_RESET_SHUTDOWN) == 0)
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return;
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#endif
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if (psci_available())
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psci_system_off();
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}
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static void
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acpi_fdt_sysctl_init(void)
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{
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const struct sysctlnode *rnode;
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int error;
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const int chosen = OF_finddevice("/chosen");
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if (chosen >= 0)
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of_getprop_uint64(chosen, "netbsd,smbios-table", &smbios_table);
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error = sysctl_createv(NULL, 0, NULL, &rnode,
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CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", NULL,
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NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL);
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if (error)
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return;
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if (smbios_table != 0) {
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(void)sysctl_createv(NULL, 0, &rnode, NULL,
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CTLFLAG_PERMANENT | CTLFLAG_READONLY | CTLFLAG_HEX, CTLTYPE_QUAD,
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"smbios", SYSCTL_DESCR("SMBIOS table pointer"),
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NULL, 0, &smbios_table, sizeof(smbios_table),
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CTL_CREATE, CTL_EOL);
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}
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}
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