Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | * LinuxBIOS ACPI Table support |
| 3 | * written by Stefan Reinauer <stepan@openbios.org> |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 4 | * (C) 2004 SUSE LINUX AG |
| 5 | * (C) 2005 Stefan Reinauer |
| 6 | * |
| 7 | * ACPI FADT, FACS, and DSDT table support added by |
Ronald G. Minnich | 02fa3b2 | 2004-10-06 17:33:54 +0000 | [diff] [blame] | 8 | * Nick Barker <nick.barker9@btinternet.com>, and those portions |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 9 | * (C) Copyright 2004 Nick Barker |
| 10 | */ |
| 11 | |
| 12 | /* |
| 13 | * Each system port implementing ACPI has to provide two functions: |
| 14 | * |
| 15 | * write_acpi_tables() |
| 16 | * acpi_dump_apics() |
| 17 | * |
| 18 | * See Solo or Epia port on more details. |
Ronald G. Minnich | 02fa3b2 | 2004-10-06 17:33:54 +0000 | [diff] [blame] | 19 | */ |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 20 | |
| 21 | #include <console/console.h> |
| 22 | #include <string.h> |
| 23 | #include <arch/acpi.h> |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 24 | #include <device/pci.h> |
Ronald G. Minnich | 02fa3b2 | 2004-10-06 17:33:54 +0000 | [diff] [blame] | 25 | |
| 26 | u8 acpi_checksum(u8 *table, u32 length) |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 27 | { |
| 28 | u8 ret=0; |
| 29 | while (length--) { |
| 30 | ret += *table; |
| 31 | table++; |
| 32 | } |
Stefan Reinauer | a7648c2 | 2004-01-29 17:31:34 +0000 | [diff] [blame] | 33 | return -ret; |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 34 | } |
| 35 | |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 36 | /* |
| 37 | * add an acpi table to rsdt structure, and recalculate checksum |
| 38 | */ |
| 39 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 40 | void acpi_add_table(acpi_rsdt_t *rsdt, void *table) |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 41 | { |
| 42 | int i; |
| 43 | |
| 44 | for (i=0; i<8; i++) { |
| 45 | if(rsdt->entry[i]==0) { |
| 46 | rsdt->entry[i]=(u32)table; |
Ronald G. Minnich | 02fa3b2 | 2004-10-06 17:33:54 +0000 | [diff] [blame] | 47 | /* fix length to stop kernel winging about invalid entries */ |
| 48 | rsdt->header.length = sizeof(acpi_header_t) + (sizeof(u32) * (i+1)); |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 49 | /* fix checksum */ |
| 50 | /* hope this won't get optimized away */ |
| 51 | rsdt->header.checksum=0; |
| 52 | rsdt->header.checksum=acpi_checksum((u8 *)rsdt, |
| 53 | rsdt->header.length); |
| 54 | |
Ronald G. Minnich | 02fa3b2 | 2004-10-06 17:33:54 +0000 | [diff] [blame] | 55 | printk_debug("ACPI: added table %d/8 Length now %d\n",i+1,rsdt->header.length); |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 56 | return; |
| 57 | } |
| 58 | } |
| 59 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 60 | printk_warning("ACPI: could not add ACPI table to RSDT. failed.\n"); |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 61 | } |
| 62 | |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 63 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 64 | int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic) |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 65 | { |
| 66 | lapic->type=0; |
| 67 | lapic->length=sizeof(acpi_madt_lapic_t); |
| 68 | lapic->flags=1; |
| 69 | |
| 70 | lapic->processor_id=cpu; |
| 71 | lapic->apic_id=apic; |
| 72 | |
| 73 | return(lapic->length); |
| 74 | } |
| 75 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 76 | int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr,u32 gsi_base) |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 77 | { |
| 78 | ioapic->type=1; |
| 79 | ioapic->length=sizeof(acpi_madt_ioapic_t); |
| 80 | ioapic->reserved=0x00; |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 81 | ioapic->gsi_base=gsi_base; |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 82 | |
| 83 | ioapic->ioapic_id=id; |
| 84 | ioapic->ioapic_addr=addr; |
| 85 | |
| 86 | return(ioapic->length); |
| 87 | } |
| 88 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 89 | int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride, |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 90 | u8 bus, u8 source, u32 gsirq, u16 flags) |
| 91 | { |
| 92 | irqoverride->type=2; |
| 93 | irqoverride->length=sizeof(acpi_madt_irqoverride_t); |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 94 | irqoverride->bus=bus; |
| 95 | irqoverride->source=source; |
| 96 | irqoverride->gsirq=gsirq; |
| 97 | irqoverride->flags=flags; |
| 98 | |
| 99 | return(irqoverride->length); |
| 100 | } |
| 101 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 102 | int acpi_create_madt_lapic_nmi(acpi_madt_lapic_nmi_t *lapic_nmi, u8 cpu, |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 103 | u16 flags, u8 lint) |
| 104 | { |
| 105 | lapic_nmi->type=4; |
| 106 | lapic_nmi->length=sizeof(acpi_madt_lapic_nmi_t); |
| 107 | |
| 108 | lapic_nmi->flags=flags; |
| 109 | lapic_nmi->processor_id=cpu; |
| 110 | lapic_nmi->lint=lint; |
| 111 | |
| 112 | return(lapic_nmi->length); |
| 113 | } |
| 114 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 115 | void acpi_create_madt(acpi_madt_t *madt) |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 116 | { |
| 117 | #define LOCAL_APIC_ADDR 0xfee00000ULL |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 118 | |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 119 | acpi_header_t *header=&(madt->header); |
| 120 | unsigned long current=(unsigned long)madt+sizeof(acpi_madt_t); |
| 121 | |
| 122 | memset((void *)madt, 0, sizeof(acpi_madt_t)); |
| 123 | |
| 124 | /* fill out header fields */ |
| 125 | memcpy(header->signature, MADT_NAME, 4); |
| 126 | memcpy(header->oem_id, OEM_ID, 6); |
| 127 | memcpy(header->oem_table_id, MADT_TABLE, 8); |
| 128 | memcpy(header->asl_compiler_id, ASLC, 4); |
| 129 | |
| 130 | header->length = sizeof(acpi_madt_t); |
| 131 | header->revision = 1; |
| 132 | |
| 133 | madt->lapic_addr= LOCAL_APIC_ADDR; |
| 134 | madt->flags = 0x1; /* PCAT_COMPAT */ |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 135 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 136 | current = acpi_dump_apics(current); |
| 137 | |
Stefan Reinauer | 06feb88 | 2004-02-03 16:11:35 +0000 | [diff] [blame] | 138 | /* recalculate length */ |
| 139 | header->length= current - (unsigned long)madt; |
| 140 | |
| 141 | header->checksum = acpi_checksum((void *)madt, header->length); |
| 142 | } |
| 143 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 144 | void acpi_create_hpet(acpi_hpet_t *hpet) |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 145 | { |
| 146 | #define HPET_ADDR 0xfed00000ULL |
| 147 | acpi_header_t *header=&(hpet->header); |
| 148 | acpi_addr_t *addr=&(hpet->addr); |
| 149 | |
Stefan Reinauer | a7648c2 | 2004-01-29 17:31:34 +0000 | [diff] [blame] | 150 | memset((void *)hpet, 0, sizeof(acpi_hpet_t)); |
| 151 | |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 152 | /* fill out header fields */ |
| 153 | memcpy(header->signature, HPET_NAME, 4); |
| 154 | memcpy(header->oem_id, OEM_ID, 6); |
| 155 | memcpy(header->oem_table_id, HPET_TABLE, 8); |
| 156 | memcpy(header->asl_compiler_id, ASLC, 4); |
| 157 | |
| 158 | header->length = sizeof(acpi_hpet_t); |
| 159 | header->revision = 1; |
| 160 | |
| 161 | /* fill out HPET address */ |
| 162 | addr->space_id = 0; /* Memory */ |
| 163 | addr->bit_width = 64; |
| 164 | addr->bit_offset = 0; |
| 165 | addr->addrl = HPET_ADDR & 0xffffffff; |
| 166 | addr->addrh = HPET_ADDR >> 32; |
| 167 | |
| 168 | hpet->id = 0x102282a0; /* AMD ? */ |
| 169 | hpet->number = 0; |
| 170 | hpet->min_tick = 4096; |
| 171 | |
Stefan Reinauer | a7648c2 | 2004-01-29 17:31:34 +0000 | [diff] [blame] | 172 | header->checksum = acpi_checksum((void *)hpet, sizeof(acpi_hpet_t)); |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 173 | } |
| 174 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 175 | void acpi_create_facs(acpi_facs_t *facs) |
Ronald G. Minnich | 02fa3b2 | 2004-10-06 17:33:54 +0000 | [diff] [blame] | 176 | { |
Ronald G. Minnich | 02fa3b2 | 2004-10-06 17:33:54 +0000 | [diff] [blame] | 177 | memset( (void *)facs,0, sizeof(acpi_facs_t)); |
| 178 | |
| 179 | memcpy(facs->signature,"FACS",4); |
| 180 | facs->length = sizeof(acpi_facs_t); |
| 181 | facs->hardware_signature = 0; |
| 182 | facs->firmware_waking_vector = 0; |
| 183 | facs->global_lock = 0; |
| 184 | facs->flags = 0; |
| 185 | facs->x_firmware_waking_vector_l = 0; |
| 186 | facs->x_firmware_waking_vector_h = 0; |
| 187 | facs->version = 1; |
Ronald G. Minnich | 02fa3b2 | 2004-10-06 17:33:54 +0000 | [diff] [blame] | 188 | } |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 189 | |
| 190 | void acpi_write_rsdt(acpi_rsdt_t *rsdt) |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 191 | { |
| 192 | acpi_header_t *header=&(rsdt->header); |
| 193 | |
| 194 | /* fill out header fields */ |
| 195 | memcpy(header->signature, RSDT_NAME, 4); |
| 196 | memcpy(header->oem_id, OEM_ID, 6); |
| 197 | memcpy(header->oem_table_id, RSDT_TABLE, 8); |
| 198 | memcpy(header->asl_compiler_id, ASLC, 4); |
| 199 | |
| 200 | header->length = sizeof(acpi_rsdt_t); |
| 201 | header->revision = 1; |
| 202 | |
| 203 | /* fill out entries */ |
| 204 | |
| 205 | // entries are filled in later, we come with an empty set. |
| 206 | |
| 207 | /* fix checksum */ |
| 208 | |
| 209 | header->checksum = acpi_checksum((void *)rsdt, sizeof(acpi_rsdt_t)); |
| 210 | } |
| 211 | |
Stefan Reinauer | 777224c | 2005-01-19 14:06:41 +0000 | [diff] [blame^] | 212 | void acpi_write_rsdp(acpi_rsdp_t *rsdp, acpi_rsdt_t *rsdt) |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 213 | { |
| 214 | memcpy(rsdp->signature, RSDP_SIG, 8); |
| 215 | memcpy(rsdp->oem_id, OEM_ID, 6); |
| 216 | |
| 217 | rsdp->length = sizeof(acpi_rsdp_t); |
| 218 | rsdp->rsdt_address = (u32)rsdt; |
Stefan Reinauer | a7648c2 | 2004-01-29 17:31:34 +0000 | [diff] [blame] | 219 | rsdp->checksum = acpi_checksum((void *)rsdp, 20); |
| 220 | rsdp->ext_checksum = acpi_checksum((void *)rsdp, sizeof(acpi_rsdp_t)); |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 221 | } |
| 222 | |
Stefan Reinauer | 688b385 | 2004-01-28 16:56:14 +0000 | [diff] [blame] | 223 | |