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/acpi.h>
30 #include <contrib/dev/acpica/actables.h>
32 #include <machine/md_var.h>
34 extern u_int64_t ia64_lapic_address;
36 struct sapic *sapic_create(int, int, u_int64_t);
39 print_entry(ACPI_SUBTABLE_HEADER *entry)
42 switch (entry->Type) {
43 case ACPI_MADT_TYPE_INTERRUPT_OVERRIDE: {
44 ACPI_MADT_INTERRUPT_OVERRIDE *iso =
45 (ACPI_MADT_INTERRUPT_OVERRIDE *)entry;
46 printf("\tInterrupt source override entry\n");
47 printf("\t\tBus=%u, Source=%u, Irq=0x%x\n", iso->Bus,
48 iso->SourceIrq, iso->GlobalIrq);
52 case ACPI_MADT_TYPE_IO_APIC:
53 printf("\tI/O APIC entry\n");
56 case ACPI_MADT_TYPE_IO_SAPIC: {
57 ACPI_MADT_IO_SAPIC *sapic = (ACPI_MADT_IO_SAPIC *)entry;
58 printf("\tI/O SAPIC entry\n");
59 printf("\t\tId=0x%x, InterruptBase=0x%x, Address=0x%lx\n",
60 sapic->Id, sapic->GlobalIrqBase, sapic->Address);
64 case ACPI_MADT_TYPE_LOCAL_APIC_NMI:
65 printf("\tLocal APIC NMI entry\n");
68 case ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE: {
69 ACPI_MADT_LOCAL_APIC_OVERRIDE *lapic =
70 (ACPI_MADT_LOCAL_APIC_OVERRIDE *)entry;
71 printf("\tLocal APIC override entry\n");
72 printf("\t\tLocal APIC address=0x%jx\n", lapic->Address);
76 case ACPI_MADT_TYPE_LOCAL_SAPIC: {
77 ACPI_MADT_LOCAL_SAPIC *sapic = (ACPI_MADT_LOCAL_SAPIC *)entry;
78 printf("\tLocal SAPIC entry\n");
79 printf("\t\tProcessorId=0x%x, Id=0x%x, Eid=0x%x",
80 sapic->ProcessorId, sapic->Id, sapic->Eid);
81 if (!(sapic->LapicFlags & ACPI_MADT_ENABLED))
82 printf(" (disabled)");
87 case ACPI_MADT_TYPE_NMI_SOURCE:
88 printf("\tNMI entry\n");
91 case ACPI_MADT_TYPE_INTERRUPT_SOURCE: {
92 ACPI_MADT_INTERRUPT_SOURCE *pis =
93 (ACPI_MADT_INTERRUPT_SOURCE *)entry;
94 printf("\tPlatform interrupt entry\n");
95 printf("\t\tPolarity=%u, TriggerMode=%u, Id=0x%x, "
96 "Eid=0x%x, Vector=0x%x, Irq=%d\n",
97 pis->IntiFlags & ACPI_MADT_POLARITY_MASK,
98 (pis->IntiFlags & ACPI_MADT_TRIGGER_MASK) >> 2,
99 pis->Id, pis->Eid, pis->IoSapicVector, pis->GlobalIrq);
103 case ACPI_MADT_TYPE_LOCAL_APIC:
104 printf("\tLocal APIC entry\n");
108 printf("\tUnknown type %d entry\n", entry->Type);
114 ia64_probe_sapics(void)
116 ACPI_PHYSICAL_ADDRESS rsdp_ptr;
117 ACPI_SUBTABLE_HEADER *entry;
118 ACPI_TABLE_MADT *table;
119 ACPI_TABLE_RSDP *rsdp;
120 ACPI_TABLE_XSDT *xsdt;
124 if ((rsdp_ptr = AcpiOsGetRootPointer()) == 0)
127 rsdp = (ACPI_TABLE_RSDP *)IA64_PHYS_TO_RR7(rsdp_ptr);
128 xsdt = (ACPI_TABLE_XSDT *)IA64_PHYS_TO_RR7(rsdp->XsdtPhysicalAddress);
130 tables = (UINT64 *)((char *)xsdt + xsdt->Header.Length) -
131 xsdt->TableOffsetEntry;
133 for (t = 0; t < tables; t++) {
134 table = (ACPI_TABLE_MADT *)
135 IA64_PHYS_TO_RR7(xsdt->TableOffsetEntry[t]);
138 printf("Table '%c%c%c%c' at %p\n",
139 table->Header.Signature[0],
140 table->Header.Signature[1],
141 table->Header.Signature[2],
142 table->Header.Signature[3], table);
144 if (strncmp(table->Header.Signature, ACPI_SIG_MADT,
145 ACPI_NAME_SIZE) != 0 ||
146 ACPI_FAILURE(AcpiTbChecksum((void *)table,
147 table->Header.Length)))
150 /* Save the address of the processor interrupt block. */
152 printf("\tLocal APIC address=0x%x\n", table->Address);
153 ia64_lapic_address = table->Address;
155 end = (char *)table + table->Header.Length;
156 p = (char *)(table + 1);
158 entry = (ACPI_SUBTABLE_HEADER *)p;
163 switch (entry->Type) {
164 case ACPI_MADT_TYPE_IO_SAPIC: {
165 ACPI_MADT_IO_SAPIC *sapic =
166 (ACPI_MADT_IO_SAPIC *)entry;
167 sapic_create(sapic->Id, sapic->GlobalIrqBase,
172 case ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE: {
173 ACPI_MADT_LOCAL_APIC_OVERRIDE *lapic =
174 (ACPI_MADT_LOCAL_APIC_OVERRIDE *)entry;
175 ia64_lapic_address = lapic->Address;
180 case ACPI_MADT_TYPE_LOCAL_SAPIC: {
181 ACPI_MADT_LOCAL_SAPIC *sapic =
182 (ACPI_MADT_LOCAL_SAPIC *)entry;
183 if (sapic->LapicFlags & ACPI_MADT_ENABLED)
184 cpu_mp_add(sapic->ProcessorId,
185 sapic->Id, sapic->Eid);
200 * Count the number of local SAPIC entries in the APIC table. Every enabled
201 * entry corresponds to a processor.
204 ia64_count_cpus(void)
206 ACPI_PHYSICAL_ADDRESS rsdp_ptr;
207 ACPI_MADT_LOCAL_SAPIC *entry;
208 ACPI_TABLE_MADT *table;
209 ACPI_TABLE_RSDP *rsdp;
210 ACPI_TABLE_XSDT *xsdt;
214 if ((rsdp_ptr = AcpiOsGetRootPointer()) == 0)
217 rsdp = (ACPI_TABLE_RSDP *)IA64_PHYS_TO_RR7(rsdp_ptr);
218 xsdt = (ACPI_TABLE_XSDT *)IA64_PHYS_TO_RR7(rsdp->XsdtPhysicalAddress);
220 tables = (UINT64 *)((char *)xsdt + xsdt->Header.Length) -
221 xsdt->TableOffsetEntry;
225 for (t = 0; t < tables; t++) {
226 table = (ACPI_TABLE_MADT *)
227 IA64_PHYS_TO_RR7(xsdt->TableOffsetEntry[t]);
229 if (strncmp(table->Header.Signature, ACPI_SIG_MADT,
230 ACPI_NAME_SIZE) != 0 ||
231 ACPI_FAILURE(AcpiTbChecksum((void *)table,
232 table->Header.Length)))
235 end = (char *)table + table->Header.Length;
236 p = (char *)(table + 1);
238 entry = (ACPI_MADT_LOCAL_SAPIC *)p;
240 if (entry->Header.Type == ACPI_MADT_TYPE_LOCAL_SAPIC &&
241 (entry->LapicFlags & ACPI_MADT_ENABLED))
244 p += entry->Header.Length;