/* $NetBSD: x86_ipmi.c,v 1.3 2021/10/07 12:52:27 msaitoh Exp $ */ /* * Copyright (c) 2006 Manuel Bouyer. * * 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 AUTHOR ``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 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. * */ /* * Copyright (c) 2005 Jordan Hargrave * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: x86_ipmi.c,v 1.3 2021/10/07 12:52:27 msaitoh Exp $"); #include <sys/types.h> #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/pmf.h> #include <sys/bus.h> #include <sys/intr.h> #include <dev/smbiosvar.h> #include <dev/isa/isareg.h> #include <dev/isa/isavar.h> #include <x86/ipmivar.h> #define SMBIOS_TYPE_IPMI 0x26 /* * Format of SMBIOS IPMI Flags * * bit0: interrupt trigger mode (1=level, 0=edge) * bit1: interrupt polarity (1=active high, 0=active low) * bit2: reserved * bit3: address LSB (1=odd,0=even) * bit4: interrupt (1=specified, 0=not specified) * bit5: reserved * bit6/7: register spacing (1,4,2,err) */ #define SMIPMI_FLAG_IRQLVL (1L << 0) #define SMIPMI_FLAG_IRQEN (1L << 3) #define SMIPMI_FLAG_ODDOFFSET (1L << 4) #define SMIPMI_FLAG_IFSPACING(x) (((x)>>6)&0x3) #define IPMI_IOSPACING_BYTE 0 #define IPMI_IOSPACING_WORD 2 #define IPMI_IOSPACING_DWORD 1 static void ipmi_smbios_probe(struct smbios_ipmi *pipmi, struct ipmi_attach_args *ia) { const char *platform; aprint_debug("%s: %#.2x %#.2x %#.2x %#.2x %#08" PRIx64 " %#.2x %#.2x\n", __func__, pipmi->smipmi_if_type, pipmi->smipmi_if_rev, pipmi->smipmi_i2c_address, pipmi->smipmi_nvram_address, pipmi->smipmi_base_address, pipmi->smipmi_base_flags, pipmi->smipmi_irq); ia->iaa_if_type = pipmi->smipmi_if_type; ia->iaa_if_rev = pipmi->smipmi_if_rev; ia->iaa_if_irq = (pipmi->smipmi_base_flags & SMIPMI_FLAG_IRQEN) ? pipmi->smipmi_irq : -1; ia->iaa_if_irqlvl = (pipmi->smipmi_base_flags & SMIPMI_FLAG_IRQLVL) ? IST_LEVEL : IST_EDGE; switch (SMIPMI_FLAG_IFSPACING(pipmi->smipmi_base_flags)) { case IPMI_IOSPACING_BYTE: ia->iaa_if_iospacing = 1; break; case IPMI_IOSPACING_DWORD: ia->iaa_if_iospacing = 4; break; case IPMI_IOSPACING_WORD: ia->iaa_if_iospacing = 2; break; default: ia->iaa_if_iospacing = 1; aprint_error("%s: unknown register spacing\n", __func__); } /* Calculate base address (PCI BAR format) */ if (pipmi->smipmi_base_address & 0x1) { ia->iaa_if_iotype = 'i'; ia->iaa_if_iobase = pipmi->smipmi_base_address & ~0x1; } else { ia->iaa_if_iotype = 'm'; ia->iaa_if_iobase = pipmi->smipmi_base_address & ~0xF; } if (pipmi->smipmi_base_flags & SMIPMI_FLAG_ODDOFFSET) ia->iaa_if_iobase++; platform = pmf_get_platform("system-product"); if (platform != NULL && strcmp(platform, "ProLiant MicroServer") == 0 && pipmi->smipmi_base_address != 0) { ia->iaa_if_iospacing = 1; ia->iaa_if_iobase = pipmi->smipmi_base_address & ~0x7; ia->iaa_if_iotype = 'i'; return; } if (pipmi->smipmi_base_flags == 0x7f) { /* IBM 325 eServer workaround */ ia->iaa_if_iospacing = 1; ia->iaa_if_iobase = pipmi->smipmi_base_address; ia->iaa_if_iotype = 'i'; return; } } /* Scan memory for signature */ static void * scan_sig(long start, long end, int skip, int len, const void *data) { void *va; while (start < end) { va = ISA_HOLE_VADDR(start); if (memcmp(va, data, len) == 0) return va; start += skip; } return NULL; } int ipmi_probe(struct ipmi_attach_args *ia) { struct dmd_ipmi *pipmi; struct smbtable tbl; tbl.cookie = 0; if (smbios_find_table(SMBIOS_TYPE_IPMIDEV, &tbl)) ipmi_smbios_probe(tbl.tblhdr, ia); else { pipmi = scan_sig(0xC0000L, 0xFFFFFL, 16, 4, "IPMI"); /* XXX hack to find Dell PowerEdge 8450 */ if (pipmi == NULL) { /* no IPMI found */ return 0; } /* we have an IPMI signature, fill in attach arg structure */ ia->iaa_if_type = pipmi->dmd_if_type; ia->iaa_if_rev = pipmi->dmd_if_rev; } return 1; }
