/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright 2016 Nexenta Systems, Inc. * Copyright (c) 2017 by Delphix. All rights reserved. * Copyright 2017 Joyent, Inc. */ /* * Copyright (c) 2010, Intel Corporation. * All rights reserved. */ /* * PSMI 1.1 extensions are supported only in 2.6 and later versions. * PSMI 1.2 extensions are supported only in 2.7 and later versions. * PSMI 1.3 and 1.4 extensions are supported in Solaris 10. * PSMI 1.5 extensions are supported in Solaris Nevada. * PSMI 1.6 extensions are supported in Solaris Nevada. * PSMI 1.7 extensions are supported in Solaris Nevada. */ #define PSMI_1_7 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if !defined(__xpv) #include #include #endif /* * Local Function Prototypes */ static int apic_handle_defconf(); static int apic_parse_mpct(caddr_t mpct, int bypass); static struct apic_mpfps_hdr *apic_find_fps_sig(caddr_t fptr, int size); static int apic_checksum(caddr_t bptr, int len); static int apic_find_bus_type(char *bus); static int apic_find_bus(int busid); static struct apic_io_intr *apic_find_io_intr(int irqno); static int apic_find_free_irq(int start, int end); struct apic_io_intr *apic_find_io_intr_w_busid(int irqno, int busid); static void apic_set_pwroff_method_from_mpcnfhdr(struct apic_mp_cnf_hdr *hdrp); static void apic_free_apic_cpus(void); static boolean_t apic_is_ioapic_AMD_813x(uint32_t physaddr); static int apic_acpi_enter_apicmode(void); int apic_handle_pci_pci_bridge(dev_info_t *idip, int child_devno, int child_ipin, struct apic_io_intr **intrp); int apic_find_bus_id(int bustype); int apic_find_intin(uchar_t ioapic, uchar_t intin); void apic_record_rdt_entry(apic_irq_t *irqptr, int irq); int apic_debug_mps_id = 0; /* 1 - print MPS ID strings */ /* ACPI SCI interrupt configuration; -1 if SCI not used */ int apic_sci_vect = -1; iflag_t apic_sci_flags; #if !defined(__xpv) /* ACPI HPET interrupt configuration; -1 if HPET not used */ int apic_hpet_vect = -1; iflag_t apic_hpet_flags; #endif /* * psm name pointer */ char *psm_name; /* ACPI support routines */ static int acpi_probe(char *); static int apic_acpi_irq_configure(acpi_psm_lnk_t *acpipsmlnkp, dev_info_t *dip, int *pci_irqp, iflag_t *intr_flagp); int apic_acpi_translate_pci_irq(dev_info_t *dip, int busid, int devid, int ipin, int *pci_irqp, iflag_t *intr_flagp); uchar_t acpi_find_ioapic(int irq); static int acpi_intr_compatible(iflag_t iflag1, iflag_t iflag2); /* Max wait time (in repetitions) for flags to clear in an RDT entry. */ int apic_max_reps_clear_pending = 1000; int apic_intr_policy = INTR_ROUND_ROBIN; int apic_next_bind_cpu = 1; /* For round robin assignment */ /* start with cpu 1 */ /* * If enabled, the distribution works as follows: * On every interrupt entry, the current ipl for the CPU is set in cpu_info * and the irq corresponding to the ipl is also set in the aci_current array. * interrupt exit and setspl (due to soft interrupts) will cause the current * ipl to be be changed. This is cache friendly as these frequently used * paths write into a per cpu structure. * * Sampling is done by checking the structures for all CPUs and incrementing * the busy field of the irq (if any) executing on each CPU and the busy field * of the corresponding CPU. * In periodic mode this is done on every clock interrupt. * In one-shot mode, this is done thru a cyclic with an interval of * apic_redistribute_sample_interval (default 10 milli sec). * * Every apic_sample_factor_redistribution times we sample, we do computations * to decide which interrupt needs to be migrated (see comments * before apic_intr_redistribute(). */ /* * Following 3 variables start as % and can be patched or set using an * API to be defined in future. They will be scaled to * sample_factor_redistribution which is in turn set to hertz+1 (in periodic * mode), or 101 in one-shot mode to stagger it away from one sec processing */ int apic_int_busy_mark = 60; int apic_int_free_mark = 20; int apic_diff_for_redistribution = 10; /* sampling interval for interrupt redistribution for dynamic migration */ int apic_redistribute_sample_interval = NANOSEC / 100; /* 10 millisec */ /* * number of times we sample before deciding to redistribute interrupts * for dynamic migration */ int apic_sample_factor_redistribution = 101; int apic_redist_cpu_skip = 0; int apic_num_imbalance = 0; int apic_num_rebind = 0; /* * Maximum number of APIC CPUs in the system, -1 indicates that dynamic * allocation of CPU ids is disabled. */ int apic_max_nproc = -1; int apic_nproc = 0; size_t apic_cpus_size = 0; int apic_defconf = 0; int apic_irq_translate = 0; int apic_spec_rev = 0; int apic_imcrp = 0; int apic_use_acpi = 1; /* 1 = use ACPI, 0 = don't use ACPI */ int apic_use_acpi_madt_only = 0; /* 1=ONLY use MADT from ACPI */ /* * For interrupt link devices, if apic_unconditional_srs is set, an irq resource * will be assigned (via _SRS). If it is not set, use the current * irq setting (via _CRS), but only if that irq is in the set of possible * irqs (returned by _PRS) for the device. */ int apic_unconditional_srs = 1; /* * For interrupt link devices, if apic_prefer_crs is set when we are * assigning an IRQ resource to a device, prefer the current IRQ setting * over other possible irq settings under same conditions. */ int apic_prefer_crs = 1; uchar_t apic_io_id[MAX_IO_APIC]; volatile uint32_t *apicioadr[MAX_IO_APIC]; uchar_t apic_io_ver[MAX_IO_APIC]; uchar_t apic_io_vectbase[MAX_IO_APIC]; uchar_t apic_io_vectend[MAX_IO_APIC]; uchar_t apic_reserved_irqlist[MAX_ISA_IRQ + 1]; uint32_t apic_physaddr[MAX_IO_APIC]; boolean_t ioapic_mask_workaround[MAX_IO_APIC]; /* * First available slot to be used as IRQ index into the apic_irq_table * for those interrupts (like MSI/X) that don't have a physical IRQ. */ int apic_first_avail_irq = APIC_FIRST_FREE_IRQ; /* * apic_ioapic_lock protects the ioapics (reg select), the status, temp_bound * and bound elements of cpus_info and the temp_cpu element of irq_struct */ lock_t apic_ioapic_lock; int apic_io_max = 0; /* no. of i/o apics enabled */ struct apic_io_intr *apic_io_intrp = NULL; static struct apic_bus *apic_busp; uchar_t apic_resv_vector[MAXIPL+1]; char apic_level_intr[APIC_MAX_VECTOR+1]; uint32_t eisa_level_intr_mask = 0; /* At least MSB will be set if EISA bus */ int apic_pci_bus_total = 0; uchar_t apic_single_pci_busid = 0; /* * airq_mutex protects additions to the apic_irq_table - the first * pointer and any airq_nexts off of that one. It also protects * apic_max_device_irq & apic_min_device_irq. It also guarantees * that share_id is unique as new ids are generated only when new * irq_t structs are linked in. Once linked in the structs are never * deleted. temp_cpu & mps_intr_index field indicate if it is programmed * or allocated. Note that there is a slight gap between allocating in * apic_introp_xlate and programming in addspl. */ kmutex_t airq_mutex; apic_irq_t *apic_irq_table[APIC_MAX_VECTOR+1]; int apic_max_device_irq = 0; int apic_min_device_irq = APIC_MAX_VECTOR; typedef struct prs_irq_list_ent { int list_prio; int32_t irq; iflag_t intrflags; acpi_prs_private_t prsprv; struct prs_irq_list_ent *next; } prs_irq_list_t; /* * ACPI variables */ /* 1 = acpi is enabled & working, 0 = acpi is not enabled or not there */ int apic_enable_acpi = 0; /* ACPI Multiple APIC Description Table ptr */ static ACPI_TABLE_MADT *acpi_mapic_dtp = NULL; /* ACPI Interrupt Source Override Structure ptr */ ACPI_MADT_INTERRUPT_OVERRIDE *acpi_isop = NULL; int acpi_iso_cnt = 0; /* ACPI Non-maskable Interrupt Sources ptr */ static ACPI_MADT_NMI_SOURCE *acpi_nmi_sp = NULL; static int acpi_nmi_scnt = 0; static ACPI_MADT_LOCAL_APIC_NMI *acpi_nmi_cp = NULL; static int acpi_nmi_ccnt = 0; static boolean_t acpi_found_smp_config = B_FALSE; /* * The following added to identify a software poweroff method if available. */ static struct { int poweroff_method; char oem_id[APIC_MPS_OEM_ID_LEN + 1]; /* MAX + 1 for NULL */ char prod_id[APIC_MPS_PROD_ID_LEN + 1]; /* MAX + 1 for NULL */ } apic_mps_ids[] = { { APIC_POWEROFF_VIA_RTC, "INTEL", "ALDER" }, /* 4300 */ { APIC_POWEROFF_VIA_RTC, "NCR", "AMC" }, /* 4300 */ { APIC_POWEROFF_VIA_ASPEN_BMC, "INTEL", "A450NX" }, /* 4400? */ { APIC_POWEROFF_VIA_ASPEN_BMC, "INTEL", "AD450NX" }, /* 4400 */ { APIC_POWEROFF_VIA_ASPEN_BMC, "INTEL", "AC450NX" }, /* 4400R */ { APIC_POWEROFF_VIA_SITKA_BMC, "INTEL", "S450NX" }, /* S50 */ { APIC_POWEROFF_VIA_SITKA_BMC, "INTEL", "SC450NX" } /* S50? */ }; int apic_poweroff_method = APIC_POWEROFF_NONE; /* * Auto-configuration routines */ /* * Look at MPSpec 1.4 (Intel Order # 242016-005) for details of what we do here * May work with 1.1 - but not guaranteed. * According to the MP Spec, the MP floating pointer structure * will be searched in the order described below: * 1. In the first kilobyte of Extended BIOS Data Area (EBDA) * 2. Within the last kilobyte of system base memory * 3. In the BIOS ROM address space between 0F0000h and 0FFFFh * Once we find the right signature with proper checksum, we call * either handle_defconf or parse_mpct to get all info necessary for * subsequent operations. */ int apic_probe_common(char *modname) { uint32_t mpct_addr, ebda_start = 0, base_mem_end; caddr_t biosdatap; caddr_t mpct = NULL; caddr_t fptr; int i, mpct_size = 0, mapsize, retval = PSM_FAILURE; ushort_t ebda_seg, base_mem_size; struct apic_mpfps_hdr *fpsp; struct apic_mp_cnf_hdr *hdrp; int bypass_cpu_and_ioapics_in_mptables; int acpi_user_options; if (apic_forceload < 0) return (retval); /* * Remember who we are */ psm_name = modname; /* Allow override for MADT-only mode */ acpi_user_options = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(), 0, "acpi-user-options", 0); apic_use_acpi_madt_only = ((acpi_user_options & ACPI_OUSER_MADT) != 0); /* Allow apic_use_acpi to override MADT-only mode */ if (!apic_use_acpi) apic_use_acpi_madt_only = 0; retval = acpi_probe(modname); /* in UEFI system, there is no BIOS data */ if (ddi_prop_exists(DDI_DEV_T_ANY, ddi_root_node(), 0, "efi-systab")) goto apic_ret; /* * mapin the bios data area 40:0 * 40:13h - two-byte location reports the base memory size * 40:0Eh - two-byte location for the exact starting address of * the EBDA segment for EISA */ biosdatap = psm_map_phys(0x400, 0x20, PROT_READ); if (!biosdatap) goto apic_ret; fpsp = (struct apic_mpfps_hdr *)NULL; mapsize = MPFPS_RAM_WIN_LEN; /*LINTED: pointer cast may result in improper alignment */ ebda_seg = *((ushort_t *)(biosdatap+0xe)); /* check the 1k of EBDA */ if (ebda_seg) { ebda_start = ((uint32_t)ebda_seg) << 4; fptr = psm_map_phys(ebda_start, MPFPS_RAM_WIN_LEN, PROT_READ); if (fptr) { if (!(fpsp = apic_find_fps_sig(fptr, MPFPS_RAM_WIN_LEN))) psm_unmap_phys(fptr, MPFPS_RAM_WIN_LEN); } } /* If not in EBDA, check the last k of system base memory */ if (!fpsp) { /*LINTED: pointer cast may result in improper alignment */ base_mem_size = *((ushort_t *)(biosdatap + 0x13)); if (base_mem_size > 512) base_mem_end = 639 * 1024; else base_mem_end = 511 * 1024; /* if ebda == last k of base mem, skip to check BIOS ROM */ if (base_mem_end != ebda_start) { fptr = psm_map_phys(base_mem_end, MPFPS_RAM_WIN_LEN, PROT_READ); if (fptr) { if (!(fpsp = apic_find_fps_sig(fptr, MPFPS_RAM_WIN_LEN))) psm_unmap_phys(fptr, MPFPS_RAM_WIN_LEN); } } } psm_unmap_phys(biosdatap, 0x20); /* If still cannot find it, check the BIOS ROM space */ if (!fpsp) { mapsize = MPFPS_ROM_WIN_LEN; fptr = psm_map_phys(MPFPS_ROM_WIN_START, MPFPS_ROM_WIN_LEN, PROT_READ); if (fptr) { if (!(fpsp = apic_find_fps_sig(fptr, MPFPS_ROM_WIN_LEN))) { psm_unmap_phys(fptr, MPFPS_ROM_WIN_LEN); goto apic_ret; } } } if (apic_checksum((caddr_t)fpsp, fpsp->mpfps_length * 16) != 0) { psm_unmap_phys(fptr, MPFPS_ROM_WIN_LEN); goto apic_ret; } apic_spec_rev = fpsp->mpfps_spec_rev; if ((apic_spec_rev != 04) && (apic_spec_rev != 01)) { psm_unmap_phys(fptr, MPFPS_ROM_WIN_LEN); goto apic_ret; } /* check IMCR is present or not */ apic_imcrp = fpsp->mpfps_featinfo2 & MPFPS_FEATINFO2_IMCRP; /* check default configuration (dual CPUs) */ if ((apic_defconf = fpsp->mpfps_featinfo1) != 0) { psm_unmap_phys(fptr, mapsize); if ((retval = apic_handle_defconf()) != PSM_SUCCESS) return (retval); goto apic_ret; } /* MP Configuration Table */ mpct_addr = (uint32_t)(fpsp->mpfps_mpct_paddr); psm_unmap_phys(fptr, mapsize); /* unmap floating ptr struct */ /* * Map in enough memory for the MP Configuration Table Header. * Use this table to read the total length of the BIOS data and * map in all the info */ /*LINTED: pointer cast may result in improper alignment */ hdrp = (struct apic_mp_cnf_hdr *)psm_map_phys(mpct_addr, sizeof (struct apic_mp_cnf_hdr), PROT_READ); if (!hdrp) goto apic_ret; /* check mp configuration table signature PCMP */ if (hdrp->mpcnf_sig != 0x504d4350) { psm_unmap_phys((caddr_t)hdrp, sizeof (struct apic_mp_cnf_hdr)); goto apic_ret; } mpct_size = (int)hdrp->mpcnf_tbl_length; apic_set_pwroff_method_from_mpcnfhdr(hdrp); psm_unmap_phys((caddr_t)hdrp, sizeof (struct apic_mp_cnf_hdr)); if ((retval == PSM_SUCCESS) && !apic_use_acpi_madt_only) { /* This is an ACPI machine No need for further checks */ goto apic_ret; } /* * Map in the entries for this machine, ie. Processor * Entry Tables, Bus Entry Tables, etc. * They are in fixed order following one another */ mpct = psm_map_phys(mpct_addr, mpct_size, PROT_READ); if (!mpct) goto apic_ret; if (apic_checksum(mpct, mpct_size) != 0) goto apic_fail1; /*LINTED: pointer cast may result in improper alignment */ hdrp = (struct apic_mp_cnf_hdr *)mpct; apicadr = (uint32_t *)mapin_apic((uint32_t)hdrp->mpcnf_local_apic, APIC_LOCAL_MEMLEN, PROT_READ | PROT_WRITE); if (!apicadr) goto apic_fail1; /* Parse all information in the tables */ bypass_cpu_and_ioapics_in_mptables = (retval == PSM_SUCCESS); if (apic_parse_mpct(mpct, bypass_cpu_and_ioapics_in_mptables) == PSM_SUCCESS) { retval = PSM_SUCCESS; goto apic_ret; } apic_fail1: psm_unmap_phys(mpct, mpct_size); mpct = NULL; apic_ret: if (retval == PSM_SUCCESS) { extern int apic_ioapic_method_probe(); if ((retval = apic_ioapic_method_probe()) == PSM_SUCCESS) return (PSM_SUCCESS); } for (i = 0; i < apic_io_max; i++) mapout_ioapic((caddr_t)apicioadr[i], APIC_IO_MEMLEN); if (apic_cpus) { kmem_free(apic_cpus, apic_cpus_size); apic_cpus = NULL; } if (apicadr) { mapout_apic((caddr_t)apicadr, APIC_LOCAL_MEMLEN); apicadr = NULL; } if (mpct) psm_unmap_phys(mpct, mpct_size); return (retval); } static void apic_set_pwroff_method_from_mpcnfhdr(struct apic_mp_cnf_hdr *hdrp) { int i; for (i = 0; i < (sizeof (apic_mps_ids) / sizeof (apic_mps_ids[0])); i++) { if ((strncmp(hdrp->mpcnf_oem_str, apic_mps_ids[i].oem_id, strlen(apic_mps_ids[i].oem_id)) == 0) && (strncmp(hdrp->mpcnf_prod_str, apic_mps_ids[i].prod_id, strlen(apic_mps_ids[i].prod_id)) == 0)) { apic_poweroff_method = apic_mps_ids[i].poweroff_method; break; } } if (apic_debug_mps_id != 0) { cmn_err(CE_CONT, "%s: MPS OEM ID = '%c%c%c%c%c%c%c%c'" "Product ID = '%c%c%c%c%c%c%c%c%c%c%c%c'\n", psm_name, hdrp->mpcnf_oem_str[0], hdrp->mpcnf_oem_str[1], hdrp->mpcnf_oem_str[2], hdrp->mpcnf_oem_str[3], hdrp->mpcnf_oem_str[4], hdrp->mpcnf_oem_str[5], hdrp->mpcnf_oem_str[6], hdrp->mpcnf_oem_str[7], hdrp->mpcnf_prod_str[0], hdrp->mpcnf_prod_str[1], hdrp->mpcnf_prod_str[2], hdrp->mpcnf_prod_str[3], hdrp->mpcnf_prod_str[4], hdrp->mpcnf_prod_str[5], hdrp->mpcnf_prod_str[6], hdrp->mpcnf_prod_str[7], hdrp->mpcnf_prod_str[8], hdrp->mpcnf_prod_str[9], hdrp->mpcnf_prod_str[10], hdrp->mpcnf_prod_str[11]); } } static void apic_free_apic_cpus(void) { if (apic_cpus != NULL) { kmem_free(apic_cpus, apic_cpus_size); apic_cpus = NULL; apic_cpus_size = 0; } } static int acpi_probe(char *modname) { int i, intmax, index; uint32_t id, ver; int acpi_verboseflags = 0; int madt_seen, madt_size; ACPI_SUBTABLE_HEADER *ap; ACPI_MADT_LOCAL_APIC *mpa; ACPI_MADT_LOCAL_X2APIC *mpx2a; ACPI_MADT_IO_APIC *mia; ACPI_MADT_IO_SAPIC *misa; ACPI_MADT_INTERRUPT_OVERRIDE *mio; ACPI_MADT_NMI_SOURCE *mns; ACPI_MADT_INTERRUPT_SOURCE *mis; ACPI_MADT_LOCAL_APIC_NMI *mlan; ACPI_MADT_LOCAL_X2APIC_NMI *mx2alan; ACPI_MADT_LOCAL_APIC_OVERRIDE *mao; int sci; iflag_t sci_flags; volatile uint32_t *ioapic; int ioapic_ix; uint32_t *local_ids; uint32_t *proc_ids; uchar_t hid; int warned = 0; if (!apic_use_acpi) return (PSM_FAILURE); if (AcpiGetTable(ACPI_SIG_MADT, 1, (ACPI_TABLE_HEADER **) &acpi_mapic_dtp) != AE_OK) { cmn_err(CE_WARN, "!acpi_probe: No MADT found!"); return (PSM_FAILURE); } apicadr = mapin_apic((uint32_t)acpi_mapic_dtp->Address, APIC_LOCAL_MEMLEN, PROT_READ | PROT_WRITE); if (!apicadr) return (PSM_FAILURE); if ((local_ids = (uint32_t *)kmem_zalloc(NCPU * sizeof (uint32_t), KM_NOSLEEP)) == NULL) return (PSM_FAILURE); if ((proc_ids = (uint32_t *)kmem_zalloc(NCPU * sizeof (uint32_t), KM_NOSLEEP)) == NULL) { kmem_free(local_ids, NCPU * sizeof (uint32_t)); return (PSM_FAILURE); } id = apic_reg_ops->apic_read(APIC_LID_REG); local_ids[0] = (uchar_t)(id >> 24); apic_nproc = index = 1; apic_io_max = 0; ap = (ACPI_SUBTABLE_HEADER *) (acpi_mapic_dtp + 1); madt_size = acpi_mapic_dtp->Header.Length; madt_seen = sizeof (*acpi_mapic_dtp); while (madt_seen < madt_size) { switch (ap->Type) { case ACPI_MADT_TYPE_LOCAL_APIC: mpa = (ACPI_MADT_LOCAL_APIC *) ap; if (mpa->LapicFlags & ACPI_MADT_ENABLED) { if (mpa->Id == 255) { cmn_err(CE_WARN, "!%s: encountered " "invalid entry in MADT: CPU %d " "has Local APIC Id equal to 255 ", psm_name, mpa->ProcessorId); } if (mpa->Id == local_ids[0]) { ASSERT(index == 1); proc_ids[0] = mpa->ProcessorId; } else if (apic_nproc < NCPU && use_mp && apic_nproc < boot_ncpus) { local_ids[index] = mpa->Id; proc_ids[index] = mpa->ProcessorId; index++; apic_nproc++; } else if (apic_nproc == NCPU && !warned) { cmn_err(CE_WARN, "%s: CPU limit " "exceeded" #if !defined(__amd64) " for 32-bit mode" #endif "; Solaris will use %d CPUs.", psm_name, NCPU); warned = 1; } } break; case ACPI_MADT_TYPE_IO_APIC: mia = (ACPI_MADT_IO_APIC *) ap; if (apic_io_max < MAX_IO_APIC) { ioapic_ix = apic_io_max; apic_io_id[apic_io_max] = mia->Id; apic_io_vectbase[apic_io_max] = mia->GlobalIrqBase; apic_physaddr[apic_io_max] = (uint32_t)mia->Address; ioapic = apicioadr[apic_io_max] = mapin_ioapic((uint32_t)mia->Address, APIC_IO_MEMLEN, PROT_READ | PROT_WRITE); if (!ioapic) goto cleanup; ioapic_mask_workaround[apic_io_max] = apic_is_ioapic_AMD_813x(mia->Address); apic_io_max++; } break; case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE: mio = (ACPI_MADT_INTERRUPT_OVERRIDE *) ap; if (acpi_isop == NULL) acpi_isop = mio; acpi_iso_cnt++; break; case ACPI_MADT_TYPE_NMI_SOURCE: /* UNIMPLEMENTED */ mns = (ACPI_MADT_NMI_SOURCE *) ap; if (acpi_nmi_sp == NULL) acpi_nmi_sp = mns; acpi_nmi_scnt++; cmn_err(CE_NOTE, "!apic: nmi source: %d 0x%x\n", mns->GlobalIrq, mns->IntiFlags); break; case ACPI_MADT_TYPE_LOCAL_APIC_NMI: /* UNIMPLEMENTED */ mlan = (ACPI_MADT_LOCAL_APIC_NMI *) ap; if (acpi_nmi_cp == NULL) acpi_nmi_cp = mlan; acpi_nmi_ccnt++; cmn_err(CE_NOTE, "!apic: local nmi: %d 0x%x %d\n", mlan->ProcessorId, mlan->IntiFlags, mlan->Lint); break; case ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE: /* UNIMPLEMENTED */ mao = (ACPI_MADT_LOCAL_APIC_OVERRIDE *) ap; cmn_err(CE_NOTE, "!apic: address override: %lx\n", (long)mao->Address); break; case ACPI_MADT_TYPE_IO_SAPIC: /* UNIMPLEMENTED */ misa = (ACPI_MADT_IO_SAPIC *) ap; cmn_err(CE_NOTE, "!apic: io sapic: %d %d %lx\n", misa->Id, misa->GlobalIrqBase, (long)misa->Address); break; case ACPI_MADT_TYPE_INTERRUPT_SOURCE: /* UNIMPLEMENTED */ mis = (ACPI_MADT_INTERRUPT_SOURCE *) ap; cmn_err(CE_NOTE, "!apic: irq source: %d %d %d 0x%x %d %d\n", mis->Id, mis->Eid, mis->GlobalIrq, mis->IntiFlags, mis->Type, mis->IoSapicVector); break; case ACPI_MADT_TYPE_LOCAL_X2APIC: mpx2a = (ACPI_MADT_LOCAL_X2APIC *) ap; /* * All logical processors with APIC ID values * of 255 and greater will have their APIC * reported through Processor X2APIC structure. * All logical processors with APIC ID less than * 255 will have their APIC reported through * Processor Local APIC. * * Some systems apparently don't care and report all * processors through Processor X2APIC structures. We * warn about that but don't ignore those CPUs. */ if (mpx2a->LocalApicId < 255) { cmn_err(CE_WARN, "!%s: ignoring invalid entry " "in MADT: CPU %d has X2APIC Id %d (< 255)", psm_name, mpx2a->Uid, mpx2a->LocalApicId); } if (mpx2a->LapicFlags & ACPI_MADT_ENABLED) { if (mpx2a->LocalApicId == local_ids[0]) { ASSERT(index == 1); proc_ids[0] = mpx2a->Uid; } else if (apic_nproc < NCPU && use_mp && apic_nproc < boot_ncpus) { local_ids[index] = mpx2a->LocalApicId; proc_ids[index] = mpx2a->Uid; index++; apic_nproc++; } else if (apic_nproc == NCPU && !warned) { cmn_err(CE_WARN, "%s: CPU limit " "exceeded" #if !defined(__amd64) " for 32-bit mode" #endif "; Solaris will use %d CPUs.", psm_name, NCPU); warned = 1; } } break; case ACPI_MADT_TYPE_LOCAL_X2APIC_NMI: /* UNIMPLEMENTED */ mx2alan = (ACPI_MADT_LOCAL_X2APIC_NMI *) ap; if (mx2alan->Uid >> 8) acpi_nmi_ccnt++; #ifdef DEBUG cmn_err(CE_NOTE, "!apic: local x2apic nmi: %d 0x%x %d\n", mx2alan->Uid, mx2alan->IntiFlags, mx2alan->Lint); #endif break; case ACPI_MADT_TYPE_RESERVED: default: break; } /* advance to next entry */ madt_seen += ap->Length; ap = (ACPI_SUBTABLE_HEADER *)(((char *)ap) + ap->Length); } /* We found multiple enabled cpus via MADT */ if ((apic_nproc > 1) && (apic_io_max > 0)) { acpi_found_smp_config = B_TRUE; cmn_err(CE_NOTE, "!apic: Using ACPI (MADT) for SMP configuration"); } /* * allocate enough space for possible hot-adding of CPUs. * max_ncpus may be less than apic_nproc if it's set by user. */ if (plat_dr_support_cpu()) { apic_max_nproc = max_ncpus; } apic_cpus_size = max(apic_nproc, max_ncpus) * sizeof (*apic_cpus); if ((apic_cpus = kmem_zalloc(apic_cpus_size, KM_NOSLEEP)) == NULL) goto cleanup; /* * ACPI doesn't provide the local apic ver, get it directly from the * local apic */ ver = apic_reg_ops->apic_read(APIC_VERS_REG); for (i = 0; i < apic_nproc; i++) { apic_cpus[i].aci_local_id = local_ids[i]; apic_cpus[i].aci_local_ver = (uchar_t)(ver & 0xFF); apic_cpus[i].aci_processor_id = proc_ids[i]; /* Only build mapping info for CPUs present at boot. */ if (i < boot_ncpus) (void) acpica_map_cpu(i, proc_ids[i]); } /* * To support CPU dynamic reconfiguration, the apic CPU info structure * for each possible CPU will be pre-allocated at boot time. * The state for each apic CPU info structure will be assigned according * to the following rules: * Rule 1: * Slot index range: [0, min(apic_nproc, boot_ncpus)) * State flags: 0 * Note: cpu exists and will be configured/enabled at boot time * Rule 2: * Slot index range: [boot_ncpus, apic_nproc) * State flags: APIC_CPU_FREE | APIC_CPU_DIRTY * Note: cpu exists but won't be configured/enabled at boot time * Rule 3: * Slot index range: [apic_nproc, boot_ncpus) * State flags: APIC_CPU_FREE * Note: cpu doesn't exist at boot time * Rule 4: * Slot index range: [max(apic_nproc, boot_ncpus), max_ncpus) * State flags: APIC_CPU_FREE * Note: cpu doesn't exist at boot time */ CPUSET_ZERO(apic_cpumask); for (i = 0; i < min(boot_ncpus, apic_nproc); i++) { CPUSET_ADD(apic_cpumask, i); apic_cpus[i].aci_status = 0; } for (i = boot_ncpus; i < apic_nproc; i++) { apic_cpus[i].aci_status = APIC_CPU_FREE | APIC_CPU_DIRTY; } for (i = apic_nproc; i < boot_ncpus; i++) { apic_cpus[i].aci_status = APIC_CPU_FREE; } for (i = max(boot_ncpus, apic_nproc); i < max_ncpus; i++) { apic_cpus[i].aci_status = APIC_CPU_FREE; } for (i = 0; i < apic_io_max; i++) { ioapic_ix = i; /* * need to check Sitka on the following acpi problem * On the Sitka, the ioapic's apic_id field isn't reporting * the actual io apic id. We have reported this problem * to Intel. Until they fix the problem, we will get the * actual id directly from the ioapic. */ id = ioapic_read(ioapic_ix, APIC_ID_CMD); hid = (uchar_t)(id >> 24); if (hid != apic_io_id[i]) { if (apic_io_id[i] == 0) apic_io_id[i] = hid; else { /* set ioapic id to whatever reported by ACPI */ id = ((uint32_t)apic_io_id[i]) << 24; ioapic_write(ioapic_ix, APIC_ID_CMD, id); } } ver = ioapic_read(ioapic_ix, APIC_VERS_CMD); apic_io_ver[i] = (uchar_t)(ver & 0xff); intmax = (ver >> 16) & 0xff; apic_io_vectend[i] = apic_io_vectbase[i] + intmax; if (apic_first_avail_irq <= apic_io_vectend[i]) apic_first_avail_irq = apic_io_vectend[i] + 1; } /* * Process SCI configuration here * An error may be returned here if * acpi-user-options specifies legacy mode * (no SCI, no ACPI mode) */ if (acpica_get_sci(&sci, &sci_flags) != AE_OK) sci = -1; /* * Now call acpi_init() to generate namespaces * If this fails, we don't attempt to use ACPI * even if we were able to get a MADT above */ if (acpica_init() != AE_OK) { cmn_err(CE_WARN, "!apic: Failed to initialize acpica!"); goto cleanup; } /* * Call acpica_build_processor_map() now that we have * ACPI namesspace access */ (void) acpica_build_processor_map(); /* * Squirrel away the SCI and flags for later on * in apic_picinit() when we're ready */ apic_sci_vect = sci; apic_sci_flags = sci_flags; if (apic_verbose & APIC_VERBOSE_IRQ_FLAG) acpi_verboseflags |= PSM_VERBOSE_IRQ_FLAG; if (apic_verbose & APIC_VERBOSE_POWEROFF_FLAG) acpi_verboseflags |= PSM_VERBOSE_POWEROFF_FLAG; if (apic_verbose & APIC_VERBOSE_POWEROFF_PAUSE_FLAG) acpi_verboseflags |= PSM_VERBOSE_POWEROFF_PAUSE_FLAG; if (acpi_psm_init(modname, acpi_verboseflags) == ACPI_PSM_FAILURE) goto cleanup; /* Enable ACPI APIC interrupt routing */ if (apic_acpi_enter_apicmode() != PSM_FAILURE) { cmn_err(CE_NOTE, "!apic: Using APIC interrupt routing mode"); build_reserved_irqlist((uchar_t *)apic_reserved_irqlist); apic_enable_acpi = 1; if (apic_sci_vect > 0) { acpica_set_core_feature(ACPI_FEATURE_SCI_EVENT); } if (apic_use_acpi_madt_only) { cmn_err(CE_CONT, "?Using ACPI for CPU/IOAPIC information ONLY\n"); } #if !defined(__xpv) /* * probe ACPI for hpet information here which is used later * in apic_picinit(). */ if (hpet_acpi_init(&apic_hpet_vect, &apic_hpet_flags) < 0) { cmn_err(CE_NOTE, "!ACPI HPET table query failed\n"); } #endif kmem_free(local_ids, NCPU * sizeof (uint32_t)); kmem_free(proc_ids, NCPU * sizeof (uint32_t)); return (PSM_SUCCESS); } /* if setting APIC mode failed above, we fall through to cleanup */ cleanup: cmn_err(CE_WARN, "!apic: Failed acpi_probe, SMP config was %s", acpi_found_smp_config ? "found" : "not found"); apic_free_apic_cpus(); if (apicadr != NULL) { mapout_apic((caddr_t)apicadr, APIC_LOCAL_MEMLEN); apicadr = NULL; } apic_max_nproc = -1; apic_nproc = 0; for (i = 0; i < apic_io_max; i++) { mapout_ioapic((caddr_t)apicioadr[i], APIC_IO_MEMLEN); apicioadr[i] = NULL; } apic_io_max = 0; acpi_isop = NULL; acpi_iso_cnt = 0; acpi_nmi_sp = NULL; acpi_nmi_scnt = 0; acpi_nmi_cp = NULL; acpi_nmi_ccnt = 0; acpi_found_smp_config = B_FALSE; kmem_free(local_ids, NCPU * sizeof (uint32_t)); kmem_free(proc_ids, NCPU * sizeof (uint32_t)); return (PSM_FAILURE); } /* * Handle default configuration. Fill in reqd global variables & tables * Fill all details as MP table does not give any more info */ static int apic_handle_defconf() { uint_t lid; /* Failed to probe ACPI MADT tables, disable CPU DR. */ apic_max_nproc = -1; apic_free_apic_cpus(); plat_dr_disable_cpu(); apicioadr[0] = (void *)mapin_ioapic(APIC_IO_ADDR, APIC_IO_MEMLEN, PROT_READ | PROT_WRITE); apicadr = (void *)psm_map_phys(APIC_LOCAL_ADDR, APIC_LOCAL_MEMLEN, PROT_READ); apic_cpus_size = 2 * sizeof (*apic_cpus); apic_cpus = (apic_cpus_info_t *) kmem_zalloc(apic_cpus_size, KM_NOSLEEP); if ((!apicadr) || (!apicioadr[0]) || (!apic_cpus)) goto apic_handle_defconf_fail; CPUSET_ONLY(apic_cpumask, 0); CPUSET_ADD(apic_cpumask, 1); apic_nproc = 2; lid = apic_reg_ops->apic_read(APIC_LID_REG); apic_cpus[0].aci_local_id = (uchar_t)(lid >> APIC_ID_BIT_OFFSET); /* * According to the PC+MP spec 1.1, the local ids * for the default configuration has to be 0 or 1 */ if (apic_cpus[0].aci_local_id == 1) apic_cpus[1].aci_local_id = 0; else if (apic_cpus[0].aci_local_id == 0) apic_cpus[1].aci_local_id = 1; else goto apic_handle_defconf_fail; apic_io_id[0] = 2; apic_io_max = 1; if (apic_defconf >= 5) { apic_cpus[0].aci_local_ver = APIC_INTEGRATED_VERS; apic_cpus[1].aci_local_ver = APIC_INTEGRATED_VERS; apic_io_ver[0] = APIC_INTEGRATED_VERS; } else { apic_cpus[0].aci_local_ver = 0; /* 82489 DX */ apic_cpus[1].aci_local_ver = 0; apic_io_ver[0] = 0; } if (apic_defconf == 2 || apic_defconf == 3 || apic_defconf == 6) eisa_level_intr_mask = (inb(EISA_LEVEL_CNTL + 1) << 8) | inb(EISA_LEVEL_CNTL) | ((uint_t)INT32_MAX + 1); return (PSM_SUCCESS); apic_handle_defconf_fail: if (apicadr) mapout_apic((caddr_t)apicadr, APIC_LOCAL_MEMLEN); if (apicioadr[0]) mapout_ioapic((caddr_t)apicioadr[0], APIC_IO_MEMLEN); return (PSM_FAILURE); } /* Parse the entries in MP configuration table and collect info that we need */ static int apic_parse_mpct(caddr_t mpct, int bypass_cpus_and_ioapics) { struct apic_procent *procp; struct apic_bus *busp; struct apic_io_entry *ioapicp; struct apic_io_intr *intrp; int ioapic_ix; uint_t lid; uint32_t id; uchar_t hid; int warned = 0; /*LINTED: pointer cast may result in improper alignment */ procp = (struct apic_procent *)(mpct + sizeof (struct apic_mp_cnf_hdr)); /* No need to count cpu entries if we won't use them */ if (!bypass_cpus_and_ioapics) { /* Find max # of CPUS and allocate structure accordingly */ apic_nproc = 0; CPUSET_ZERO(apic_cpumask); while (procp->proc_entry == APIC_CPU_ENTRY) { if (procp->proc_cpuflags & CPUFLAGS_EN) { if (apic_nproc < NCPU && use_mp && apic_nproc < boot_ncpus) { CPUSET_ADD(apic_cpumask, apic_nproc); apic_nproc++; } else if (apic_nproc == NCPU && !warned) { cmn_err(CE_WARN, "%s: CPU limit " "exceeded" #if !defined(__amd64) " for 32-bit mode" #endif "; Solaris will use %d CPUs.", psm_name, NCPU); warned = 1; } } procp++; } apic_cpus_size = apic_nproc * sizeof (*apic_cpus); if (!apic_nproc || !(apic_cpus = (apic_cpus_info_t *) kmem_zalloc(apic_cpus_size, KM_NOSLEEP))) return (PSM_FAILURE); } /*LINTED: pointer cast may result in improper alignment */ procp = (struct apic_procent *)(mpct + sizeof (struct apic_mp_cnf_hdr)); /* * start with index 1 as 0 needs to be filled in with Boot CPU, but * if we're bypassing this information, it has already been filled * in by acpi_probe(), so don't overwrite it. */ if (!bypass_cpus_and_ioapics) apic_nproc = 1; while (procp->proc_entry == APIC_CPU_ENTRY) { /* check whether the cpu exists or not */ if (!bypass_cpus_and_ioapics && procp->proc_cpuflags & CPUFLAGS_EN) { if (procp->proc_cpuflags & CPUFLAGS_BP) { /* Boot CPU */ lid = apic_reg_ops->apic_read(APIC_LID_REG); apic_cpus[0].aci_local_id = procp->proc_apicid; if (apic_cpus[0].aci_local_id != (uchar_t)(lid >> APIC_ID_BIT_OFFSET)) { return (PSM_FAILURE); } apic_cpus[0].aci_local_ver = procp->proc_version; } else if (apic_nproc < NCPU && use_mp && apic_nproc < boot_ncpus) { apic_cpus[apic_nproc].aci_local_id = procp->proc_apicid; apic_cpus[apic_nproc].aci_local_ver = procp->proc_version; apic_nproc++; } } procp++; } /* * Save start of bus entries for later use. * Get EISA level cntrl if EISA bus is present. * Also get the CPI bus id for single CPI bus case */ apic_busp = busp = (struct apic_bus *)procp; while (busp->bus_entry == APIC_BUS_ENTRY) { lid = apic_find_bus_type((char *)&busp->bus_str1); if (lid == BUS_EISA) { eisa_level_intr_mask = (inb(EISA_LEVEL_CNTL + 1) << 8) | inb(EISA_LEVEL_CNTL) | ((uint_t)INT32_MAX + 1); } else if (lid == BUS_PCI) { /* * apic_single_pci_busid will be used only if * apic_pic_bus_total is equal to 1 */ apic_pci_bus_total++; apic_single_pci_busid = busp->bus_id; } busp++; } ioapicp = (struct apic_io_entry *)busp; if (!bypass_cpus_and_ioapics) apic_io_max = 0; do { if (!bypass_cpus_and_ioapics && apic_io_max < MAX_IO_APIC) { if (ioapicp->io_flags & IOAPIC_FLAGS_EN) { apic_io_id[apic_io_max] = ioapicp->io_apicid; apic_io_ver[apic_io_max] = ioapicp->io_version; apicioadr[apic_io_max] = (void *)mapin_ioapic( (uint32_t)ioapicp->io_apic_addr, APIC_IO_MEMLEN, PROT_READ | PROT_WRITE); if (!apicioadr[apic_io_max]) return (PSM_FAILURE); ioapic_mask_workaround[apic_io_max] = apic_is_ioapic_AMD_813x( ioapicp->io_apic_addr); ioapic_ix = apic_io_max; id = ioapic_read(ioapic_ix, APIC_ID_CMD); hid = (uchar_t)(id >> 24); if (hid != apic_io_id[apic_io_max]) { if (apic_io_id[apic_io_max] == 0) apic_io_id[apic_io_max] = hid; else { /* * set ioapic id to whatever * reported by MPS * * may not need to set index * again ??? * take it out and try */ id = ((uint32_t) apic_io_id[apic_io_max]) << 24; ioapic_write(ioapic_ix, APIC_ID_CMD, id); } } apic_io_max++; } } ioapicp++; } while (ioapicp->io_entry == APIC_IO_ENTRY); apic_io_intrp = (struct apic_io_intr *)ioapicp; intrp = apic_io_intrp; while (intrp->intr_entry == APIC_IO_INTR_ENTRY) { if ((intrp->intr_irq > APIC_MAX_ISA_IRQ) || (apic_find_bus(intrp->intr_busid) == BUS_PCI)) { apic_irq_translate = 1; break; } intrp++; } return (PSM_SUCCESS); } boolean_t apic_cpu_in_range(int cpu) { cpu &= ~IRQ_USER_BOUND; /* Check whether cpu id is in valid range. */ if (cpu < 0 || cpu >= apic_nproc) { return (B_FALSE); } else if (apic_max_nproc != -1 && cpu >= apic_max_nproc) { /* * Check whether cpuid is in valid range if CPU DR is enabled. */ return (B_FALSE); } else if (!CPU_IN_SET(apic_cpumask, cpu)) { return (B_FALSE); } return (B_TRUE); } processorid_t apic_get_next_bind_cpu(void) { int i, count; processorid_t cpuid = 0; for (count = 0; count < apic_nproc; count++) { if (apic_next_bind_cpu >= apic_nproc) { apic_next_bind_cpu = 0; } i = apic_next_bind_cpu++; if (apic_cpu_in_range(i)) { cpuid = i; break; } } return (cpuid); } uint16_t apic_get_apic_version() { int i; uchar_t min_io_apic_ver = 0; static uint16_t version; /* Cache as value is constant */ static boolean_t found = B_FALSE; /* Accomodate zero version */ if (found == B_FALSE) { found = B_TRUE; /* * Don't assume all IO APICs in the system are the same. * * Set to the minimum version. */ for (i = 0; i < apic_io_max; i++) { if ((apic_io_ver[i] != 0) && ((min_io_apic_ver == 0) || (min_io_apic_ver >= apic_io_ver[i]))) min_io_apic_ver = apic_io_ver[i]; } /* Assume all local APICs are of the same version. */ version = (min_io_apic_ver << 8) | apic_cpus[0].aci_local_ver; } return (version); } static struct apic_mpfps_hdr * apic_find_fps_sig(caddr_t cptr, int len) { int i; /* Look for the pattern "_MP_" */ for (i = 0; i < len; i += 16) { if ((*(cptr+i) == '_') && (*(cptr+i+1) == 'M') && (*(cptr+i+2) == 'P') && (*(cptr+i+3) == '_')) /*LINTED: pointer cast may result in improper alignment */ return ((struct apic_mpfps_hdr *)(cptr + i)); } return (NULL); } static int apic_checksum(caddr_t bptr, int len) { int i; uchar_t cksum; cksum = 0; for (i = 0; i < len; i++) cksum += *bptr++; return ((int)cksum); } /* * On machines with PCI-PCI bridges, a device behind a PCI-PCI bridge * needs special handling. We may need to chase up the device tree, * using the PCI-PCI Bridge specification's "rotating IPIN assumptions", * to find the IPIN at the root bus that relates to the IPIN on the * subsidiary bus (for ACPI or MP). We may, however, have an entry * in the MP table or the ACPI namespace for this device itself. * We handle both cases in the search below. */ /* this is the non-acpi version */ int apic_handle_pci_pci_bridge(dev_info_t *idip, int child_devno, int child_ipin, struct apic_io_intr **intrp) { dev_info_t *dipp, *dip; int pci_irq; ddi_acc_handle_t cfg_handle; int bridge_devno, bridge_bus; int ipin; dip = idip; /*CONSTCOND*/ while (1) { if (((dipp = ddi_get_parent(dip)) == (dev_info_t *)NULL) || (pci_config_setup(dipp, &cfg_handle) != DDI_SUCCESS)) return (-1); if ((pci_config_get8(cfg_handle, PCI_CONF_BASCLASS) == PCI_CLASS_BRIDGE) && (pci_config_get8(cfg_handle, PCI_CONF_SUBCLASS) == PCI_BRIDGE_PCI)) { pci_config_teardown(&cfg_handle); if (acpica_get_bdf(dipp, &bridge_bus, &bridge_devno, NULL) != 0) return (-1); /* * This is the rotating scheme documented in the * PCI-to-PCI spec. If the PCI-to-PCI bridge is * behind another PCI-to-PCI bridge, then it needs * to keep ascending until an interrupt entry is * found or the root is reached. */ ipin = (child_devno + child_ipin) % PCI_INTD; if (bridge_bus == 0 && apic_pci_bus_total == 1) bridge_bus = (int)apic_single_pci_busid; pci_irq = ((bridge_devno & 0x1f) << 2) | (ipin & 0x3); if ((*intrp = apic_find_io_intr_w_busid(pci_irq, bridge_bus)) != NULL) { return (pci_irq); } dip = dipp; child_devno = bridge_devno; child_ipin = ipin; } else { pci_config_teardown(&cfg_handle); return (-1); } } /*LINTED: function will not fall off the bottom */ } uchar_t acpi_find_ioapic(int irq) { int i; for (i = 0; i < apic_io_max; i++) { if (irq >= apic_io_vectbase[i] && irq <= apic_io_vectend[i]) return ((uchar_t)i); } return (0xFF); /* shouldn't happen */ } /* * See if two irqs are compatible for sharing a vector. * Currently we only support sharing of PCI devices. */ static int acpi_intr_compatible(iflag_t iflag1, iflag_t iflag2) { uint_t level1, po1; uint_t level2, po2; /* Assume active high by default */ po1 = 0; po2 = 0; if (iflag1.bustype != iflag2.bustype || iflag1.bustype != BUS_PCI) return (0); if (iflag1.intr_el == INTR_EL_CONFORM) level1 = AV_LEVEL; else level1 = (iflag1.intr_el == INTR_EL_LEVEL) ? AV_LEVEL : 0; if (level1 && ((iflag1.intr_po == INTR_PO_ACTIVE_LOW) || (iflag1.intr_po == INTR_PO_CONFORM))) po1 = AV_ACTIVE_LOW; if (iflag2.intr_el == INTR_EL_CONFORM) level2 = AV_LEVEL; else level2 = (iflag2.intr_el == INTR_EL_LEVEL) ? AV_LEVEL : 0; if (level2 && ((iflag2.intr_po == INTR_PO_ACTIVE_LOW) || (iflag2.intr_po == INTR_PO_CONFORM))) po2 = AV_ACTIVE_LOW; if ((level1 == level2) && (po1 == po2)) return (1); return (0); } struct apic_io_intr * apic_find_io_intr_w_busid(int irqno, int busid) { struct apic_io_intr *intrp; /* * It can have more than 1 entry with same source bus IRQ, * but unique with the source bus id */ intrp = apic_io_intrp; if (intrp != NULL) { while (intrp->intr_entry == APIC_IO_INTR_ENTRY) { if (intrp->intr_irq == irqno && intrp->intr_busid == busid && intrp->intr_type == IO_INTR_INT) return (intrp); intrp++; } } APIC_VERBOSE_IOAPIC((CE_NOTE, "Did not find io intr for irqno:" "busid %x:%x\n", irqno, busid)); return ((struct apic_io_intr *)NULL); } struct mps_bus_info { char *bus_name; int bus_id; } bus_info_array[] = { "ISA ", BUS_ISA, "PCI ", BUS_PCI, "EISA ", BUS_EISA, "XPRESS", BUS_XPRESS, "PCMCIA", BUS_PCMCIA, "VL ", BUS_VL, "CBUS ", BUS_CBUS, "CBUSII", BUS_CBUSII, "FUTURE", BUS_FUTURE, "INTERN", BUS_INTERN, "MBI ", BUS_MBI, "MBII ", BUS_MBII, "MPI ", BUS_MPI, "MPSA ", BUS_MPSA, "NUBUS ", BUS_NUBUS, "TC ", BUS_TC, "VME ", BUS_VME, "PCI-E ", BUS_PCIE }; static int apic_find_bus_type(char *bus) { int i = 0; for (; i < sizeof (bus_info_array)/sizeof (struct mps_bus_info); i++) if (strncmp(bus, bus_info_array[i].bus_name, strlen(bus_info_array[i].bus_name)) == 0) return (bus_info_array[i].bus_id); APIC_VERBOSE_IOAPIC((CE_WARN, "Did not find bus type for bus %s", bus)); return (0); } static int apic_find_bus(int busid) { struct apic_bus *busp; busp = apic_busp; while (busp->bus_entry == APIC_BUS_ENTRY) { if (busp->bus_id == busid) return (apic_find_bus_type((char *)&busp->bus_str1)); busp++; } APIC_VERBOSE_IOAPIC((CE_WARN, "Did not find bus for bus id %x", busid)); return (0); } int apic_find_bus_id(int bustype) { struct apic_bus *busp; busp = apic_busp; while (busp->bus_entry == APIC_BUS_ENTRY) { if (apic_find_bus_type((char *)&busp->bus_str1) == bustype) return (busp->bus_id); busp++; } APIC_VERBOSE_IOAPIC((CE_WARN, "Did not find bus id for bustype %x", bustype)); return (-1); } /* * Check if a particular irq need to be reserved for any io_intr */ static struct apic_io_intr * apic_find_io_intr(int irqno) { struct apic_io_intr *intrp; intrp = apic_io_intrp; if (intrp != NULL) { while (intrp->intr_entry == APIC_IO_INTR_ENTRY) { if (intrp->intr_irq == irqno && intrp->intr_type == IO_INTR_INT) return (intrp); intrp++; } } return ((struct apic_io_intr *)NULL); } /* * Check if the given ioapicindex intin combination has already been assigned * an irq. If so return irqno. Else -1 */ int apic_find_intin(uchar_t ioapic, uchar_t intin) { apic_irq_t *irqptr; int i; /* find ioapic and intin in the apic_irq_table[] and return the index */ for (i = apic_min_device_irq; i <= apic_max_device_irq; i++) { irqptr = apic_irq_table[i]; while (irqptr) { if ((irqptr->airq_mps_intr_index >= 0) && (irqptr->airq_intin_no == intin) && (irqptr->airq_ioapicindex == ioapic)) { APIC_VERBOSE_IOAPIC((CE_NOTE, "!Found irq " "entry for ioapic:intin %x:%x " "shared interrupts ?", ioapic, intin)); return (i); } irqptr = irqptr->airq_next; } } return (-1); } int apic_allocate_irq(int irq) { int freeirq, i; if ((freeirq = apic_find_free_irq(irq, (APIC_RESV_IRQ - 1))) == -1) if ((freeirq = apic_find_free_irq(APIC_FIRST_FREE_IRQ, (irq - 1))) == -1) { /* * if BIOS really defines every single irq in the mps * table, then don't worry about conflicting with * them, just use any free slot in apic_irq_table */ for (i = APIC_FIRST_FREE_IRQ; i < APIC_RESV_IRQ; i++) { if ((apic_irq_table[i] == NULL) || apic_irq_table[i]->airq_mps_intr_index == FREE_INDEX) { freeirq = i; break; } } if (freeirq == -1) { /* This shouldn't happen, but just in case */ cmn_err(CE_WARN, "%s: NO available IRQ", psm_name); return (-1); } } if (apic_irq_table[freeirq] == NULL) { apic_irq_table[freeirq] = kmem_zalloc(sizeof (apic_irq_t), KM_NOSLEEP); if (apic_irq_table[freeirq] == NULL) { cmn_err(CE_WARN, "%s: NO memory to allocate IRQ", psm_name); return (-1); } apic_irq_table[freeirq]->airq_temp_cpu = IRQ_UNINIT; apic_irq_table[freeirq]->airq_mps_intr_index = FREE_INDEX; } return (freeirq); } static int apic_find_free_irq(int start, int end) { int i; for (i = start; i <= end; i++) /* Check if any I/O entry needs this IRQ */ if (apic_find_io_intr(i) == NULL) { /* Then see if it is free */ if ((apic_irq_table[i] == NULL) || (apic_irq_table[i]->airq_mps_intr_index == FREE_INDEX)) { return (i); } } return (-1); } /* * compute the polarity, trigger mode and vector for programming into * the I/O apic and record in airq_rdt_entry. */ void apic_record_rdt_entry(apic_irq_t *irqptr, int irq) { int ioapicindex, bus_type, vector; short intr_index; uint_t level, po, io_po; struct apic_io_intr *iointrp; intr_index = irqptr->airq_mps_intr_index; DDI_INTR_IMPLDBG((CE_CONT, "apic_record_rdt_entry: intr_index=%d " "irq = 0x%x dip = 0x%p vector = 0x%x\n", intr_index, irq, (void *)irqptr->airq_dip, irqptr->airq_vector)); if (intr_index == RESERVE_INDEX) { apic_error |= APIC_ERR_INVALID_INDEX; return; } else if (APIC_IS_MSI_OR_MSIX_INDEX(intr_index)) { return; } vector = irqptr->airq_vector; ioapicindex = irqptr->airq_ioapicindex; /* Assume edge triggered by default */ level = 0; /* Assume active high by default */ po = 0; if (intr_index == DEFAULT_INDEX || intr_index == FREE_INDEX) { ASSERT(irq < 16); if (eisa_level_intr_mask & (1 << irq)) level = AV_LEVEL; if (intr_index == FREE_INDEX && apic_defconf == 0) apic_error |= APIC_ERR_INVALID_INDEX; } else if (intr_index == ACPI_INDEX) { bus_type = irqptr->airq_iflag.bustype; if (irqptr->airq_iflag.intr_el == INTR_EL_CONFORM) { if (bus_type == BUS_PCI) level = AV_LEVEL; } else level = (irqptr->airq_iflag.intr_el == INTR_EL_LEVEL) ? AV_LEVEL : 0; if (level && ((irqptr->airq_iflag.intr_po == INTR_PO_ACTIVE_LOW) || (irqptr->airq_iflag.intr_po == INTR_PO_CONFORM && bus_type == BUS_PCI))) po = AV_ACTIVE_LOW; } else { iointrp = apic_io_intrp + intr_index; bus_type = apic_find_bus(iointrp->intr_busid); if (iointrp->intr_el == INTR_EL_CONFORM) { if ((irq < 16) && (eisa_level_intr_mask & (1 << irq))) level = AV_LEVEL; else if (bus_type == BUS_PCI) level = AV_LEVEL; } else level = (iointrp->intr_el == INTR_EL_LEVEL) ? AV_LEVEL : 0; if (level && ((iointrp->intr_po == INTR_PO_ACTIVE_LOW) || (iointrp->intr_po == INTR_PO_CONFORM && bus_type == BUS_PCI))) po = AV_ACTIVE_LOW; } if (level) apic_level_intr[irq] = 1; /* * The 82489DX External APIC cannot do active low polarity interrupts. */ if (po && (apic_io_ver[ioapicindex] != IOAPIC_VER_82489DX)) io_po = po; else io_po = 0; if (apic_verbose & APIC_VERBOSE_IOAPIC_FLAG) prom_printf("setio: ioapic=0x%x intin=0x%x level=0x%x po=0x%x " "vector=0x%x cpu=0x%x\n\n", ioapicindex, irqptr->airq_intin_no, level, io_po, vector, irqptr->airq_cpu); irqptr->airq_rdt_entry = level|io_po|vector; } int apic_acpi_translate_pci_irq(dev_info_t *dip, int busid, int devid, int ipin, int *pci_irqp, iflag_t *intr_flagp) { int status; acpi_psm_lnk_t acpipsmlnk; if ((status = acpi_get_irq_cache_ent(busid, devid, ipin, pci_irqp, intr_flagp)) == ACPI_PSM_SUCCESS) { APIC_VERBOSE_IRQ((CE_CONT, "!%s: Found irqno %d " "from cache for device %s, instance #%d\n", psm_name, *pci_irqp, ddi_get_name(dip), ddi_get_instance(dip))); return (status); } bzero(&acpipsmlnk, sizeof (acpi_psm_lnk_t)); if ((status = acpi_translate_pci_irq(dip, ipin, pci_irqp, intr_flagp, &acpipsmlnk)) == ACPI_PSM_FAILURE) { APIC_VERBOSE_IRQ((CE_WARN, "%s: " " acpi_translate_pci_irq failed for device %s, instance" " #%d", psm_name, ddi_get_name(dip), ddi_get_instance(dip))); return (status); } if (status == ACPI_PSM_PARTIAL && acpipsmlnk.lnkobj != NULL) { status = apic_acpi_irq_configure(&acpipsmlnk, dip, pci_irqp, intr_flagp); if (status != ACPI_PSM_SUCCESS) { status = acpi_get_current_irq_resource(&acpipsmlnk, pci_irqp, intr_flagp); } } if (status == ACPI_PSM_SUCCESS) { acpi_new_irq_cache_ent(busid, devid, ipin, *pci_irqp, intr_flagp, &acpipsmlnk); APIC_VERBOSE_IRQ((CE_CONT, "%s: [ACPI] " "new irq %d for device %s, instance #%d\n", psm_name, *pci_irqp, ddi_get_name(dip), ddi_get_instance(dip))); } return (status); } /* * Adds an entry to the irq list passed in, and returns the new list. * Entries are added in priority order (lower numerical priorities are * placed closer to the head of the list) */ static prs_irq_list_t * acpi_insert_prs_irq_ent(prs_irq_list_t *listp, int priority, int irq, iflag_t *iflagp, acpi_prs_private_t *prsprvp) { struct prs_irq_list_ent *newent, *prevp = NULL, *origlistp; newent = kmem_zalloc(sizeof (struct prs_irq_list_ent), KM_SLEEP); newent->list_prio = priority; newent->irq = irq; newent->intrflags = *iflagp; newent->prsprv = *prsprvp; /* ->next is NULL from kmem_zalloc */ /* * New list -- return the new entry as the list. */ if (listp == NULL) return (newent); /* * Save original list pointer for return (since we're not modifying * the head) */ origlistp = listp; /* * Insertion sort, with entries with identical keys stored AFTER * existing entries (the less-than-or-equal test of priority does * this for us). */ while (listp != NULL && listp->list_prio <= priority) { prevp = listp; listp = listp->next; } newent->next = listp; if (prevp == NULL) { /* Add at head of list (newent is the new head) */ return (newent); } else { prevp->next = newent; return (origlistp); } } /* * Frees the list passed in, deallocating all memory and leaving *listpp * set to NULL. */ static void acpi_destroy_prs_irq_list(prs_irq_list_t **listpp) { struct prs_irq_list_ent *nextp; ASSERT(listpp != NULL); while (*listpp != NULL) { nextp = (*listpp)->next; kmem_free(*listpp, sizeof (struct prs_irq_list_ent)); *listpp = nextp; } } /* * apic_choose_irqs_from_prs returns a list of irqs selected from the list of * irqs returned by the link device's _PRS method. The irqs are chosen * to minimize contention in situations where the interrupt link device * can be programmed to steer interrupts to different interrupt controller * inputs (some of which may already be in use). The list is sorted in order * of irqs to use, with the highest priority given to interrupt controller * inputs that are not shared. When an interrupt controller input * must be shared, apic_choose_irqs_from_prs adds the possible irqs to the * returned list in the order that minimizes sharing (thereby ensuring lowest * possible latency from interrupt trigger time to ISR execution time). */ static prs_irq_list_t * apic_choose_irqs_from_prs(acpi_irqlist_t *irqlistent, dev_info_t *dip, int crs_irq) { int32_t irq; int i; prs_irq_list_t *prsirqlistp = NULL; iflag_t iflags; while (irqlistent != NULL) { irqlistent->intr_flags.bustype = BUS_PCI; for (i = 0; i < irqlistent->num_irqs; i++) { irq = irqlistent->irqs[i]; if (irq <= 0) { /* invalid irq number */ continue; } if ((irq < 16) && (apic_reserved_irqlist[irq])) continue; if ((apic_irq_table[irq] == NULL) || (apic_irq_table[irq]->airq_dip == dip)) { prsirqlistp = acpi_insert_prs_irq_ent( prsirqlistp, 0 /* Highest priority */, irq, &irqlistent->intr_flags, &irqlistent->acpi_prs_prv); /* * If we do not prefer the current irq from _CRS * or if we do and this irq is the same as the * current irq from _CRS, this is the one * to pick. */ if (!(apic_prefer_crs) || (irq == crs_irq)) { return (prsirqlistp); } continue; } /* * Edge-triggered interrupts cannot be shared */ if (irqlistent->intr_flags.intr_el == INTR_EL_EDGE) continue; /* * To work around BIOSes that contain incorrect * interrupt polarity information in interrupt * descriptors returned by _PRS, we assume that * the polarity of the other device sharing this * interrupt controller input is compatible. * If it's not, the caller will catch it when * the caller invokes the link device's _CRS method * (after invoking its _SRS method). */ iflags = irqlistent->intr_flags; iflags.intr_po = apic_irq_table[irq]->airq_iflag.intr_po; if (!acpi_intr_compatible(iflags, apic_irq_table[irq]->airq_iflag)) { APIC_VERBOSE_IRQ((CE_CONT, "!%s: irq %d " "not compatible [%x:%x:%x !~ %x:%x:%x]", psm_name, irq, iflags.intr_po, iflags.intr_el, iflags.bustype, apic_irq_table[irq]->airq_iflag.intr_po, apic_irq_table[irq]->airq_iflag.intr_el, apic_irq_table[irq]->airq_iflag.bustype)); continue; } /* * If we prefer the irq from _CRS, no need * to search any further (and make sure * to add this irq with the highest priority * so it's tried first). */ if (crs_irq == irq && apic_prefer_crs) { return (acpi_insert_prs_irq_ent( prsirqlistp, 0 /* Highest priority */, irq, &iflags, &irqlistent->acpi_prs_prv)); } /* * Priority is equal to the share count (lower * share count is higher priority). Note that * the intr flags passed in here are the ones we * changed above -- if incorrect, it will be * caught by the caller's _CRS flags comparison. */ prsirqlistp = acpi_insert_prs_irq_ent( prsirqlistp, apic_irq_table[irq]->airq_share, irq, &iflags, &irqlistent->acpi_prs_prv); } /* Go to the next irqlist entry */ irqlistent = irqlistent->next; } return (prsirqlistp); } /* * Configures the irq for the interrupt link device identified by * acpipsmlnkp. * * Gets the current and the list of possible irq settings for the * device. If apic_unconditional_srs is not set, and the current * resource setting is in the list of possible irq settings, * current irq resource setting is passed to the caller. * * Otherwise, picks an irq number from the list of possible irq * settings, and sets the irq of the device to this value. * If prefer_crs is set, among a set of irq numbers in the list that have * the least number of devices sharing the interrupt, we pick current irq * resource setting if it is a member of this set. * * Passes the irq number in the value pointed to by pci_irqp, and * polarity and sensitivity in the structure pointed to by dipintrflagp * to the caller. * * Note that if setting the irq resource failed, but successfuly obtained * the current irq resource settings, passes the current irq resources * and considers it a success. * * Returns: * ACPI_PSM_SUCCESS on success. * * ACPI_PSM_FAILURE if an error occured during the configuration or * if a suitable irq was not found for this device, or if setting the * irq resource and obtaining the current resource fails. * */ static int apic_acpi_irq_configure(acpi_psm_lnk_t *acpipsmlnkp, dev_info_t *dip, int *pci_irqp, iflag_t *dipintr_flagp) { int32_t irq; int cur_irq = -1; acpi_irqlist_t *irqlistp; prs_irq_list_t *prs_irq_listp, *prs_irq_entp; boolean_t found_irq = B_FALSE; dipintr_flagp->bustype = BUS_PCI; if ((acpi_get_possible_irq_resources(acpipsmlnkp, &irqlistp)) == ACPI_PSM_FAILURE) { APIC_VERBOSE_IRQ((CE_WARN, "!%s: Unable to determine " "or assign IRQ for device %s, instance #%d: The system was " "unable to get the list of potential IRQs from ACPI.", psm_name, ddi_get_name(dip), ddi_get_instance(dip))); return (ACPI_PSM_FAILURE); } if ((acpi_get_current_irq_resource(acpipsmlnkp, &cur_irq, dipintr_flagp) == ACPI_PSM_SUCCESS) && (!apic_unconditional_srs) && (cur_irq > 0)) { /* * If an IRQ is set in CRS and that IRQ exists in the set * returned from _PRS, return that IRQ, otherwise print * a warning */ if (acpi_irqlist_find_irq(irqlistp, cur_irq, NULL) == ACPI_PSM_SUCCESS) { ASSERT(pci_irqp != NULL); *pci_irqp = cur_irq; acpi_free_irqlist(irqlistp); return (ACPI_PSM_SUCCESS); } APIC_VERBOSE_IRQ((CE_WARN, "!%s: Could not find the " "current irq %d for device %s, instance #%d in ACPI's " "list of possible irqs for this device. Picking one from " " the latter list.", psm_name, cur_irq, ddi_get_name(dip), ddi_get_instance(dip))); } if ((prs_irq_listp = apic_choose_irqs_from_prs(irqlistp, dip, cur_irq)) == NULL) { APIC_VERBOSE_IRQ((CE_WARN, "!%s: Could not find a " "suitable irq from the list of possible irqs for device " "%s, instance #%d in ACPI's list of possible irqs", psm_name, ddi_get_name(dip), ddi_get_instance(dip))); acpi_free_irqlist(irqlistp); return (ACPI_PSM_FAILURE); } acpi_free_irqlist(irqlistp); for (prs_irq_entp = prs_irq_listp; prs_irq_entp != NULL && found_irq == B_FALSE; prs_irq_entp = prs_irq_entp->next) { acpipsmlnkp->acpi_prs_prv = prs_irq_entp->prsprv; irq = prs_irq_entp->irq; APIC_VERBOSE_IRQ((CE_CONT, "!%s: Setting irq %d for " "device %s instance #%d\n", psm_name, irq, ddi_get_name(dip), ddi_get_instance(dip))); if ((acpi_set_irq_resource(acpipsmlnkp, irq)) == ACPI_PSM_SUCCESS) { /* * setting irq was successful, check to make sure CRS * reflects that. If CRS does not agree with what we * set, return the irq that was set. */ if (acpi_get_current_irq_resource(acpipsmlnkp, &cur_irq, dipintr_flagp) == ACPI_PSM_SUCCESS) { if (cur_irq != irq) APIC_VERBOSE_IRQ((CE_WARN, "!%s: IRQ resource set " "(irqno %d) for device %s " "instance #%d, differs from " "current setting irqno %d", psm_name, irq, ddi_get_name(dip), ddi_get_instance(dip), cur_irq)); } else { /* * On at least one system, there was a bug in * a DSDT method called by _STA, causing _STA to * indicate that the link device was disabled * (when, in fact, it was enabled). Since _SRS * succeeded, assume that _CRS is lying and use * the iflags from this _PRS interrupt choice. * If we're wrong about the flags, the polarity * will be incorrect and we may get an interrupt * storm, but there's not much else we can do * at this point. */ *dipintr_flagp = prs_irq_entp->intrflags; } /* * Return the irq that was set, and not what _CRS * reports, since _CRS has been seen to return * different IRQs than what was passed to _SRS on some * systems (and just not return successfully on others). */ cur_irq = irq; found_irq = B_TRUE; } else { APIC_VERBOSE_IRQ((CE_WARN, "!%s: set resource " "irq %d failed for device %s instance #%d", psm_name, irq, ddi_get_name(dip), ddi_get_instance(dip))); if (cur_irq == -1) { acpi_destroy_prs_irq_list(&prs_irq_listp); return (ACPI_PSM_FAILURE); } } } acpi_destroy_prs_irq_list(&prs_irq_listp); if (!found_irq) return (ACPI_PSM_FAILURE); ASSERT(pci_irqp != NULL); *pci_irqp = cur_irq; return (ACPI_PSM_SUCCESS); } void ioapic_disable_redirection() { int ioapic_ix; int intin_max; int intin_ix; /* Disable the I/O APIC redirection entries */ for (ioapic_ix = 0; ioapic_ix < apic_io_max; ioapic_ix++) { /* Bits 23-16 define the maximum redirection entries */ intin_max = (ioapic_read(ioapic_ix, APIC_VERS_CMD) >> 16) & 0xff; for (intin_ix = 0; intin_ix <= intin_max; intin_ix++) { /* * The assumption here is that this is safe, even for * systems with IOAPICs that suffer from the hardware * erratum because all devices have been quiesced before * this function is called from apic_shutdown() * (or equivalent). If that assumption turns out to be * false, this mask operation can induce the same * erratum result we're trying to avoid. */ ioapic_write(ioapic_ix, APIC_RDT_CMD + 2 * intin_ix, AV_MASK); } } } /* * Looks for an IOAPIC with the specified physical address in the /ioapics * node in the device tree (created by the PCI enumerator). */ static boolean_t apic_is_ioapic_AMD_813x(uint32_t physaddr) { /* * Look in /ioapics, for the ioapic with * the physical address given */ dev_info_t *ioapicsnode = ddi_find_devinfo(IOAPICS_NODE_NAME, -1, 0); dev_info_t *ioapic_child; boolean_t rv = B_FALSE; int vid, did; uint64_t ioapic_paddr; boolean_t done = B_FALSE; if (ioapicsnode == NULL) return (B_FALSE); /* Load first child: */ ioapic_child = ddi_get_child(ioapicsnode); while (!done && ioapic_child != 0) { /* Iterate over children */ if ((ioapic_paddr = (uint64_t)ddi_prop_get_int64(DDI_DEV_T_ANY, ioapic_child, DDI_PROP_DONTPASS, "reg", 0)) != 0 && physaddr == ioapic_paddr) { vid = ddi_prop_get_int(DDI_DEV_T_ANY, ioapic_child, DDI_PROP_DONTPASS, IOAPICS_PROP_VENID, 0); if (vid == VENID_AMD) { did = ddi_prop_get_int(DDI_DEV_T_ANY, ioapic_child, DDI_PROP_DONTPASS, IOAPICS_PROP_DEVID, 0); if (did == DEVID_8131_IOAPIC || did == DEVID_8132_IOAPIC) { rv = B_TRUE; done = B_TRUE; } } } if (!done) ioapic_child = ddi_get_next_sibling(ioapic_child); } /* The ioapics node was held by ddi_find_devinfo, so release it */ ndi_rele_devi(ioapicsnode); return (rv); } struct apic_state { int32_t as_task_reg; int32_t as_dest_reg; int32_t as_format_reg; int32_t as_local_timer; int32_t as_pcint_vect; int32_t as_int_vect0; int32_t as_int_vect1; int32_t as_err_vect; int32_t as_init_count; int32_t as_divide_reg; int32_t as_spur_int_reg; uint32_t as_ioapic_ids[MAX_IO_APIC]; }; static int apic_acpi_enter_apicmode(void) { ACPI_OBJECT_LIST arglist; ACPI_OBJECT arg; ACPI_STATUS status; /* Setup parameter object */ arglist.Count = 1; arglist.Pointer = &arg; arg.Type = ACPI_TYPE_INTEGER; arg.Integer.Value = ACPI_APIC_MODE; status = AcpiEvaluateObject(NULL, "\\_PIC", &arglist, NULL); /* * Per ACPI spec - section 5.8.1 _PIC Method * calling the \_PIC control method is optional for the OS * and might not be found. It's ok to not fail in such cases. * This is the case on linux KVM and qemu (status AE_NOT_FOUND) */ if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) { cmn_err(CE_NOTE, "!apic: Reporting APIC mode failed (via _PIC), err: 0x%x", ACPI_FAILURE(status)); return (PSM_FAILURE); } else { return (PSM_SUCCESS); } } static void apic_save_state(struct apic_state *sp) { int i, cpuid; ulong_t iflag; PMD(PMD_SX, ("apic_save_state %p\n", (void *)sp)) /* * First the local APIC. */ sp->as_task_reg = apic_reg_ops->apic_get_pri(); sp->as_dest_reg = apic_reg_ops->apic_read(APIC_DEST_REG); if (apic_mode == LOCAL_APIC) sp->as_format_reg = apic_reg_ops->apic_read(APIC_FORMAT_REG); sp->as_local_timer = apic_reg_ops->apic_read(APIC_LOCAL_TIMER); sp->as_pcint_vect = apic_reg_ops->apic_read(APIC_PCINT_VECT); sp->as_int_vect0 = apic_reg_ops->apic_read(APIC_INT_VECT0); sp->as_int_vect1 = apic_reg_ops->apic_read(APIC_INT_VECT1); sp->as_err_vect = apic_reg_ops->apic_read(APIC_ERR_VECT); sp->as_init_count = apic_reg_ops->apic_read(APIC_INIT_COUNT); sp->as_divide_reg = apic_reg_ops->apic_read(APIC_DIVIDE_REG); sp->as_spur_int_reg = apic_reg_ops->apic_read(APIC_SPUR_INT_REG); /* * If on the boot processor then save the IOAPICs' IDs */ if ((cpuid = psm_get_cpu_id()) == 0) { iflag = intr_clear(); lock_set(&apic_ioapic_lock); for (i = 0; i < apic_io_max; i++) sp->as_ioapic_ids[i] = ioapic_read(i, APIC_ID_CMD); lock_clear(&apic_ioapic_lock); intr_restore(iflag); } /* apic_state() is currently invoked only in Suspend/Resume */ apic_cpus[cpuid].aci_status |= APIC_CPU_SUSPEND; } static void apic_restore_state(struct apic_state *sp) { int i; ulong_t iflag; /* * First the local APIC. */ apic_reg_ops->apic_write_task_reg(sp->as_task_reg); if (apic_mode == LOCAL_APIC) { apic_reg_ops->apic_write(APIC_DEST_REG, sp->as_dest_reg); apic_reg_ops->apic_write(APIC_FORMAT_REG, sp->as_format_reg); } apic_reg_ops->apic_write(APIC_LOCAL_TIMER, sp->as_local_timer); apic_reg_ops->apic_write(APIC_PCINT_VECT, sp->as_pcint_vect); apic_reg_ops->apic_write(APIC_INT_VECT0, sp->as_int_vect0); apic_reg_ops->apic_write(APIC_INT_VECT1, sp->as_int_vect1); apic_reg_ops->apic_write(APIC_ERR_VECT, sp->as_err_vect); apic_reg_ops->apic_write(APIC_INIT_COUNT, sp->as_init_count); apic_reg_ops->apic_write(APIC_DIVIDE_REG, sp->as_divide_reg); apic_reg_ops->apic_write(APIC_SPUR_INT_REG, sp->as_spur_int_reg); /* * the following only needs to be done once, so we do it on the * boot processor, since we know that we only have one of those */ if (psm_get_cpu_id() == 0) { iflag = intr_clear(); lock_set(&apic_ioapic_lock); /* Restore IOAPICs' APIC IDs */ for (i = 0; i < apic_io_max; i++) { ioapic_write(i, APIC_ID_CMD, sp->as_ioapic_ids[i]); } lock_clear(&apic_ioapic_lock); intr_restore(iflag); /* * Reenter APIC mode before restoring LNK devices */ (void) apic_acpi_enter_apicmode(); /* * restore acpi link device mappings */ acpi_restore_link_devices(); } } /* * Returns 0 on success */ int apic_state(psm_state_request_t *rp) { PMD(PMD_SX, ("apic_state ")) switch (rp->psr_cmd) { case PSM_STATE_ALLOC: rp->req.psm_state_req.psr_state = kmem_zalloc(sizeof (struct apic_state), KM_NOSLEEP); if (rp->req.psm_state_req.psr_state == NULL) return (ENOMEM); rp->req.psm_state_req.psr_state_size = sizeof (struct apic_state); PMD(PMD_SX, (":STATE_ALLOC: state %p, size %lx\n", rp->req.psm_state_req.psr_state, rp->req.psm_state_req.psr_state_size)) return (0); case PSM_STATE_FREE: kmem_free(rp->req.psm_state_req.psr_state, rp->req.psm_state_req.psr_state_size); PMD(PMD_SX, (" STATE_FREE: state %p, size %lx\n", rp->req.psm_state_req.psr_state, rp->req.psm_state_req.psr_state_size)) return (0); case PSM_STATE_SAVE: PMD(PMD_SX, (" STATE_SAVE: state %p, size %lx\n", rp->req.psm_state_req.psr_state, rp->req.psm_state_req.psr_state_size)) apic_save_state(rp->req.psm_state_req.psr_state); return (0); case PSM_STATE_RESTORE: apic_restore_state(rp->req.psm_state_req.psr_state); PMD(PMD_SX, (" STATE_RESTORE: state %p, size %lx\n", rp->req.psm_state_req.psr_state, rp->req.psm_state_req.psr_state_size)) return (0); default: return (EINVAL); } }