2 * Copyright (c) 2001 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <contrib/dev/acpica/include/acpi.h>
30 #include <contrib/dev/acpica/include/actables.h>
32 #include <machine/md_var.h>
34 struct sapic *sapic_create(int, int, u_int64_t);
37 print_entry(ACPI_SUBTABLE_HEADER *entry)
40 switch (entry->Type) {
41 case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE: {
42 ACPI_MADT_INTERRUPT_OVERRIDE *iso =
43 (ACPI_MADT_INTERRUPT_OVERRIDE *)entry;
44 printf("\tInterrupt source override entry\n");
45 printf("\t\tBus=%u, Source=%u, Irq=0x%x\n", iso->Bus,
46 iso->SourceIrq, iso->GlobalIrq);
50 case ACPI_MADT_TYPE_IO_APIC:
51 printf("\tI/O APIC entry\n");
54 case ACPI_MADT_TYPE_IO_SAPIC: {
55 ACPI_MADT_IO_SAPIC *sapic = (ACPI_MADT_IO_SAPIC *)entry;
56 printf("\tI/O SAPIC entry\n");
57 printf("\t\tId=0x%x, InterruptBase=0x%x, Address=0x%lx\n",
58 sapic->Id, sapic->GlobalIrqBase, sapic->Address);
62 case ACPI_MADT_TYPE_LOCAL_APIC_NMI:
63 printf("\tLocal APIC NMI entry\n");
66 case ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE: {
67 ACPI_MADT_LOCAL_APIC_OVERRIDE *lapic =
68 (ACPI_MADT_LOCAL_APIC_OVERRIDE *)entry;
69 printf("\tLocal APIC override entry\n");
70 printf("\t\tLocal APIC address=0x%jx\n", lapic->Address);
74 case ACPI_MADT_TYPE_LOCAL_SAPIC: {
75 ACPI_MADT_LOCAL_SAPIC *sapic = (ACPI_MADT_LOCAL_SAPIC *)entry;
76 printf("\tLocal SAPIC entry\n");
77 printf("\t\tProcessorId=0x%x, Id=0x%x, Eid=0x%x",
78 sapic->ProcessorId, sapic->Id, sapic->Eid);
79 if (!(sapic->LapicFlags & ACPI_MADT_ENABLED))
80 printf(" (disabled)");
85 case ACPI_MADT_TYPE_NMI_SOURCE:
86 printf("\tNMI entry\n");
89 case ACPI_MADT_TYPE_INTERRUPT_SOURCE: {
90 ACPI_MADT_INTERRUPT_SOURCE *pis =
91 (ACPI_MADT_INTERRUPT_SOURCE *)entry;
92 printf("\tPlatform interrupt entry\n");
93 printf("\t\tPolarity=%u, TriggerMode=%u, Id=0x%x, "
94 "Eid=0x%x, Vector=0x%x, Irq=%d\n",
95 pis->IntiFlags & ACPI_MADT_POLARITY_MASK,
96 (pis->IntiFlags & ACPI_MADT_TRIGGER_MASK) >> 2,
97 pis->Id, pis->Eid, pis->IoSapicVector, pis->GlobalIrq);
101 case ACPI_MADT_TYPE_LOCAL_APIC:
102 printf("\tLocal APIC entry\n");
106 printf("\tUnknown type %d entry\n", entry->Type);
112 ia64_probe_sapics(void)
114 ACPI_PHYSICAL_ADDRESS rsdp_ptr;
115 ACPI_SUBTABLE_HEADER *entry;
116 ACPI_TABLE_MADT *table;
117 ACPI_TABLE_RSDP *rsdp;
118 ACPI_TABLE_XSDT *xsdt;
122 if ((rsdp_ptr = AcpiOsGetRootPointer()) == 0)
125 rsdp = (ACPI_TABLE_RSDP *)IA64_PHYS_TO_RR7(rsdp_ptr);
126 xsdt = (ACPI_TABLE_XSDT *)IA64_PHYS_TO_RR7(rsdp->XsdtPhysicalAddress);
128 tables = (UINT64 *)((char *)xsdt + xsdt->Header.Length) -
129 xsdt->TableOffsetEntry;
131 for (t = 0; t < tables; t++) {
132 table = (ACPI_TABLE_MADT *)
133 IA64_PHYS_TO_RR7(xsdt->TableOffsetEntry[t]);
136 printf("Table '%c%c%c%c' at %p\n",
137 table->Header.Signature[0],
138 table->Header.Signature[1],
139 table->Header.Signature[2],
140 table->Header.Signature[3], table);
142 if (strncmp(table->Header.Signature, ACPI_SIG_MADT,
143 ACPI_NAME_SIZE) != 0 ||
144 ACPI_FAILURE(AcpiTbChecksum((void *)table,
145 table->Header.Length)))
148 /* Save the address of the processor interrupt block. */
150 printf("\tLocal APIC address=0x%x\n", table->Address);
151 ia64_lapic_addr = table->Address;
153 end = (char *)table + table->Header.Length;
154 p = (char *)(table + 1);
156 entry = (ACPI_SUBTABLE_HEADER *)p;
161 switch (entry->Type) {
162 case ACPI_MADT_TYPE_IO_SAPIC: {
163 ACPI_MADT_IO_SAPIC *sapic =
164 (ACPI_MADT_IO_SAPIC *)entry;
165 sapic_create(sapic->Id, sapic->GlobalIrqBase,
170 case ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE: {
171 ACPI_MADT_LOCAL_APIC_OVERRIDE *lapic =
172 (ACPI_MADT_LOCAL_APIC_OVERRIDE *)entry;
173 ia64_lapic_addr = lapic->Address;
178 case ACPI_MADT_TYPE_LOCAL_SAPIC: {
179 ACPI_MADT_LOCAL_SAPIC *sapic =
180 (ACPI_MADT_LOCAL_SAPIC *)entry;
181 if (sapic->LapicFlags & ACPI_MADT_ENABLED)
182 cpu_mp_add(sapic->ProcessorId,
183 sapic->Id, sapic->Eid);
198 * Count the number of local SAPIC entries in the APIC table. Every enabled
199 * entry corresponds to a processor.
202 ia64_count_cpus(void)
204 ACPI_PHYSICAL_ADDRESS rsdp_ptr;
205 ACPI_MADT_LOCAL_SAPIC *entry;
206 ACPI_TABLE_MADT *table;
207 ACPI_TABLE_RSDP *rsdp;
208 ACPI_TABLE_XSDT *xsdt;
212 if ((rsdp_ptr = AcpiOsGetRootPointer()) == 0)
215 rsdp = (ACPI_TABLE_RSDP *)IA64_PHYS_TO_RR7(rsdp_ptr);
216 xsdt = (ACPI_TABLE_XSDT *)IA64_PHYS_TO_RR7(rsdp->XsdtPhysicalAddress);
218 tables = (UINT64 *)((char *)xsdt + xsdt->Header.Length) -
219 xsdt->TableOffsetEntry;
223 for (t = 0; t < tables; t++) {
224 table = (ACPI_TABLE_MADT *)
225 IA64_PHYS_TO_RR7(xsdt->TableOffsetEntry[t]);
227 if (strncmp(table->Header.Signature, ACPI_SIG_MADT,
228 ACPI_NAME_SIZE) != 0 ||
229 ACPI_FAILURE(AcpiTbChecksum((void *)table,
230 table->Header.Length)))
233 end = (char *)table + table->Header.Length;
234 p = (char *)(table + 1);
236 entry = (ACPI_MADT_LOCAL_SAPIC *)p;
238 if (entry->Header.Type == ACPI_MADT_TYPE_LOCAL_SAPIC &&
239 (entry->LapicFlags & ACPI_MADT_ENABLED))
242 p += entry->Header.Length;