1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2008 coresystems GmbH
* Copyright (C) 2009 Thomas Jourdan <thomas.jourdan@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#include <string.h>
#include <console/console.h>
#include <arch/acpi.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include "ioapic.h"
extern unsigned char AmlCode[];
unsigned long acpi_fill_mcfg(unsigned long current)
{
device_t dev;
u64 mmcfg;
dev = dev_find_device(0x8086, 0x35B0, 0); // 0:0x13.0
if (!dev)
return current;
// MMCFG not supported or not enabled.
mmcfg = ((u64) pci_read_config16(dev, 0xce)) << 16;
if (!mmcfg)
return current;
current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current,
mmcfg, 0x0, 0x0, 0xff);
return current;
}
void acpi_create_intel_hpet(acpi_hpet_t * hpet)
{
#define HPET_ADDR 0xfed00000ULL
acpi_header_t *header = &(hpet->header);
acpi_addr_t *addr = &(hpet->addr);
memset((void *) hpet, 0, sizeof(acpi_hpet_t));
/* fill out header fields */
memcpy(header->signature, "HPET", 4);
memcpy(header->oem_id, OEM_ID, 6);
memcpy(header->oem_table_id, "IC ", 8);
memcpy(header->asl_compiler_id, ASLC, 4);
header->length = sizeof(acpi_hpet_t);
header->revision = 1;
/* fill out HPET address */
// XXX factory bios just puts an address here -- who's right?
addr->space_id = 0; /* Memory */
addr->bit_width = 64;
addr->bit_offset = 0;
addr->addrl = HPET_ADDR & 0xffffffff;
addr->addrh = HPET_ADDR >> 32;
hpet->id = 0x80861234;
hpet->number = 0x00;
hpet->min_tick = 0x0090;
header->checksum = acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
}
#define IO_APIC0 2
#define IO_APIC1 3
#define IO_APIC0_ADDR 0xfec00000UL
#define IO_APIC1_ADDR 0xfec10000UL
unsigned long acpi_fill_madt(unsigned long current)
{
unsigned int irq_start = 0;
device_t dev = 0;
struct resource* res = NULL;
unsigned char bus_isa;
/* Local Apic */
current += acpi_create_madt_lapic((acpi_madt_lapic_t *) current, 1, 0);
// This one is for the second core... Will it hurt?
current += acpi_create_madt_lapic((acpi_madt_lapic_t *) current, 2, 1);
/* IOAPIC */
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, IO_APIC0, IO_APIC0_ADDR, irq_start);
irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, IO_APIC1, IO_APIC1_ADDR, irq_start);
irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
dev = dev_find_slot(0, PCI_DEVFN(0x1e,0));
if (dev) {
bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
bus_isa++;
} else {
printk_debug("ERROR - could not find PCI 0:1e.0, using defaults\n");
bus_isa = 7;
}
/* Map ISA IRQ 0 to IRQ 2 */
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, bus_isa, 0, 2, 0);
/* IRQ9 differs from ISA standard - ours is active high, level-triggered */
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, 0, 9, 9, 0x000d);
return current;
}
unsigned long acpi_fill_slit(unsigned long current)
{
// Not implemented
return current;
}
unsigned long acpi_fill_srat(unsigned long current)
{
/* No NUMA, no SRAT */
return current;
}
#define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
int i;
acpi_rsdp_t *rsdp;
acpi_rsdt_t *rsdt;
acpi_hpet_t *hpet;
acpi_madt_t *madt;
acpi_mcfg_t *mcfg;
acpi_fadt_t *fadt;
acpi_facs_t *facs;
acpi_header_t *dsdt;
current = start;
/* Align ACPI tables to 16byte */
ALIGN_CURRENT;
printk_info("ACPI: Writing ACPI tables at %lx.\n", current);
/* We need at least an RSDP and an RSDT Table */
rsdp = (acpi_rsdp_t *) current;
current += sizeof(acpi_rsdp_t);
ALIGN_CURRENT;
rsdt = (acpi_rsdt_t *) current;
current += sizeof(acpi_rsdt_t);
ALIGN_CURRENT;
/* clear all table memory */
memset((void *) start, 0, current - start);
acpi_write_rsdp(rsdp, rsdt);
acpi_write_rsdt(rsdt);
/*
* We explicitly add these tables later on:
*/
printk_debug("ACPI: * HPET\n");
hpet = (acpi_hpet_t *) current;
current += sizeof(acpi_hpet_t);
ALIGN_CURRENT;
acpi_create_intel_hpet(hpet);
acpi_add_table(rsdt, hpet);
/* If we want to use HPET Timers Linux wants an MADT */
printk_debug("ACPI: * MADT\n");
madt = (acpi_madt_t *) current;
acpi_create_madt(madt);
current += madt->header.length;
ALIGN_CURRENT;
acpi_add_table(rsdt, madt);
printk_debug("ACPI: * MCFG\n");
mcfg = (acpi_mcfg_t *) current;
acpi_create_mcfg(mcfg);
current += mcfg->header.length;
ALIGN_CURRENT;
acpi_add_table(rsdt, mcfg);
printk_debug("ACPI: * FACS\n");
facs = (acpi_facs_t *) current;
current += sizeof(acpi_facs_t);
ALIGN_CURRENT;
acpi_create_facs(facs);
dsdt = (acpi_header_t *) current;
current += ((acpi_header_t *) AmlCode)->length;
ALIGN_CURRENT;
memcpy((void *) dsdt, (void *) AmlCode,
((acpi_header_t *) AmlCode)->length);
printk_debug("ACPI: * DSDT @ %p Length %x\n", dsdt,
dsdt->length);
printk_debug("ACPI: * FADT\n");
fadt = (acpi_fadt_t *) current;
current += sizeof(acpi_fadt_t);
ALIGN_CURRENT;
acpi_create_fadt(fadt, facs, dsdt);
acpi_add_table(rsdt, fadt);
printk_info("ACPI: done.\n");
return current;
}
|