diff options
Diffstat (limited to 'drivers/acpi/tables.c')
| -rw-r--r-- | drivers/acpi/tables.c | 434 |
1 files changed, 223 insertions, 211 deletions
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index fb64bd5d2e18..a2bf25b05e1c 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -40,25 +40,25 @@ #define ACPI_MAX_TABLES 256 static char *acpi_table_signatures[ACPI_TABLE_COUNT] = { - [ACPI_TABLE_UNKNOWN] = "????", - [ACPI_APIC] = "APIC", - [ACPI_BOOT] = "BOOT", - [ACPI_DBGP] = "DBGP", - [ACPI_DSDT] = "DSDT", - [ACPI_ECDT] = "ECDT", - [ACPI_ETDT] = "ETDT", - [ACPI_FADT] = "FACP", - [ACPI_FACS] = "FACS", - [ACPI_OEMX] = "OEM", - [ACPI_PSDT] = "PSDT", - [ACPI_SBST] = "SBST", - [ACPI_SLIT] = "SLIT", - [ACPI_SPCR] = "SPCR", - [ACPI_SRAT] = "SRAT", - [ACPI_SSDT] = "SSDT", - [ACPI_SPMI] = "SPMI", - [ACPI_HPET] = "HPET", - [ACPI_MCFG] = "MCFG", + [ACPI_TABLE_UNKNOWN] = "????", + [ACPI_APIC] = "APIC", + [ACPI_BOOT] = "BOOT", + [ACPI_DBGP] = "DBGP", + [ACPI_DSDT] = "DSDT", + [ACPI_ECDT] = "ECDT", + [ACPI_ETDT] = "ETDT", + [ACPI_FADT] = "FACP", + [ACPI_FACS] = "FACS", + [ACPI_OEMX] = "OEM", + [ACPI_PSDT] = "PSDT", + [ACPI_SBST] = "SBST", + [ACPI_SLIT] = "SLIT", + [ACPI_SPCR] = "SPCR", + [ACPI_SRAT] = "SRAT", + [ACPI_SSDT] = "SSDT", + [ACPI_SPMI] = "SPMI", + [ACPI_HPET] = "HPET", + [ACPI_MCFG] = "MCFG", }; static char *mps_inti_flags_polarity[] = { "dfl", "high", "res", "low" }; @@ -66,52 +66,44 @@ static char *mps_inti_flags_trigger[] = { "dfl", "edge", "res", "level" }; /* System Description Table (RSDT/XSDT) */ struct acpi_table_sdt { - unsigned long pa; - enum acpi_table_id id; - unsigned long size; + unsigned long pa; + enum acpi_table_id id; + unsigned long size; } __attribute__ ((packed)); -static unsigned long sdt_pa; /* Physical Address */ -static unsigned long sdt_count; /* Table count */ +static unsigned long sdt_pa; /* Physical Address */ +static unsigned long sdt_count; /* Table count */ -static struct acpi_table_sdt sdt_entry[ACPI_MAX_TABLES]; +static struct acpi_table_sdt sdt_entry[ACPI_MAX_TABLES]; -void -acpi_table_print ( - struct acpi_table_header *header, - unsigned long phys_addr) +void acpi_table_print(struct acpi_table_header *header, unsigned long phys_addr) { - char *name = NULL; + char *name = NULL; if (!header) return; /* Some table signatures aren't good table names */ - if (!strncmp((char *) &header->signature, - acpi_table_signatures[ACPI_APIC], - sizeof(header->signature))) { + if (!strncmp((char *)&header->signature, + acpi_table_signatures[ACPI_APIC], + sizeof(header->signature))) { name = "MADT"; - } - else if (!strncmp((char *) &header->signature, - acpi_table_signatures[ACPI_FADT], - sizeof(header->signature))) { + } else if (!strncmp((char *)&header->signature, + acpi_table_signatures[ACPI_FADT], + sizeof(header->signature))) { name = "FADT"; - } - else + } else name = header->signature; - printk(KERN_DEBUG PREFIX "%.4s (v%3.3d %6.6s %8.8s 0x%08x %.4s 0x%08x) @ 0x%p\n", - name, header->revision, header->oem_id, - header->oem_table_id, header->oem_revision, - header->asl_compiler_id, header->asl_compiler_revision, - (void *) phys_addr); + printk(KERN_DEBUG PREFIX + "%.4s (v%3.3d %6.6s %8.8s 0x%08x %.4s 0x%08x) @ 0x%p\n", name, + header->revision, header->oem_id, header->oem_table_id, + header->oem_revision, header->asl_compiler_id, + header->asl_compiler_revision, (void *)phys_addr); } - -void -acpi_table_print_madt_entry ( - acpi_table_entry_header *header) +void acpi_table_print_madt_entry(acpi_table_entry_header * header) { if (!header) return; @@ -119,113 +111,127 @@ acpi_table_print_madt_entry ( switch (header->type) { case ACPI_MADT_LAPIC: - { - struct acpi_table_lapic *p = - (struct acpi_table_lapic*) header; - printk(KERN_INFO PREFIX "LAPIC (acpi_id[0x%02x] lapic_id[0x%02x] %s)\n", - p->acpi_id, p->id, p->flags.enabled?"enabled":"disabled"); - } + { + struct acpi_table_lapic *p = + (struct acpi_table_lapic *)header; + printk(KERN_INFO PREFIX + "LAPIC (acpi_id[0x%02x] lapic_id[0x%02x] %s)\n", + p->acpi_id, p->id, + p->flags.enabled ? "enabled" : "disabled"); + } break; case ACPI_MADT_IOAPIC: - { - struct acpi_table_ioapic *p = - (struct acpi_table_ioapic*) header; - printk(KERN_INFO PREFIX "IOAPIC (id[0x%02x] address[0x%08x] gsi_base[%d])\n", - p->id, p->address, p->global_irq_base); - } + { + struct acpi_table_ioapic *p = + (struct acpi_table_ioapic *)header; + printk(KERN_INFO PREFIX + "IOAPIC (id[0x%02x] address[0x%08x] gsi_base[%d])\n", + p->id, p->address, p->global_irq_base); + } break; case ACPI_MADT_INT_SRC_OVR: - { - struct acpi_table_int_src_ovr *p = - (struct acpi_table_int_src_ovr*) header; - printk(KERN_INFO PREFIX "INT_SRC_OVR (bus %d bus_irq %d global_irq %d %s %s)\n", - p->bus, p->bus_irq, p->global_irq, - mps_inti_flags_polarity[p->flags.polarity], - mps_inti_flags_trigger[p->flags.trigger]); - if(p->flags.reserved) - printk(KERN_INFO PREFIX "INT_SRC_OVR unexpected reserved flags: 0x%x\n", - p->flags.reserved); + { + struct acpi_table_int_src_ovr *p = + (struct acpi_table_int_src_ovr *)header; + printk(KERN_INFO PREFIX + "INT_SRC_OVR (bus %d bus_irq %d global_irq %d %s %s)\n", + p->bus, p->bus_irq, p->global_irq, + mps_inti_flags_polarity[p->flags.polarity], + mps_inti_flags_trigger[p->flags.trigger]); + if (p->flags.reserved) + printk(KERN_INFO PREFIX + "INT_SRC_OVR unexpected reserved flags: 0x%x\n", + p->flags.reserved); - } + } break; case ACPI_MADT_NMI_SRC: - { - struct acpi_table_nmi_src *p = - (struct acpi_table_nmi_src*) header; - printk(KERN_INFO PREFIX "NMI_SRC (%s %s global_irq %d)\n", - mps_inti_flags_polarity[p->flags.polarity], - mps_inti_flags_trigger[p->flags.trigger], p->global_irq); - } + { + struct acpi_table_nmi_src *p = + (struct acpi_table_nmi_src *)header; + printk(KERN_INFO PREFIX + "NMI_SRC (%s %s global_irq %d)\n", + mps_inti_flags_polarity[p->flags.polarity], + mps_inti_flags_trigger[p->flags.trigger], + p->global_irq); + } break; case ACPI_MADT_LAPIC_NMI: - { - struct acpi_table_lapic_nmi *p = - (struct acpi_table_lapic_nmi*) header; - printk(KERN_INFO PREFIX "LAPIC_NMI (acpi_id[0x%02x] %s %s lint[0x%x])\n", - p->acpi_id, - mps_inti_flags_polarity[p->flags.polarity], - mps_inti_flags_trigger[p->flags.trigger], p->lint); - } + { + struct acpi_table_lapic_nmi *p = + (struct acpi_table_lapic_nmi *)header; + printk(KERN_INFO PREFIX + "LAPIC_NMI (acpi_id[0x%02x] %s %s lint[0x%x])\n", + p->acpi_id, + mps_inti_flags_polarity[p->flags.polarity], + mps_inti_flags_trigger[p->flags.trigger], + p->lint); + } break; case ACPI_MADT_LAPIC_ADDR_OVR: - { - struct acpi_table_lapic_addr_ovr *p = - (struct acpi_table_lapic_addr_ovr*) header; - printk(KERN_INFO PREFIX "LAPIC_ADDR_OVR (address[%p])\n", - (void *) (unsigned long) p->address); - } + { + struct acpi_table_lapic_addr_ovr *p = + (struct acpi_table_lapic_addr_ovr *)header; + printk(KERN_INFO PREFIX + "LAPIC_ADDR_OVR (address[%p])\n", + (void *)(unsigned long)p->address); + } break; case ACPI_MADT_IOSAPIC: - { - struct acpi_table_iosapic *p = - (struct acpi_table_iosapic*) header; - printk(KERN_INFO PREFIX "IOSAPIC (id[0x%x] address[%p] gsi_base[%d])\n", - p->id, (void *) (unsigned long) p->address, p->global_irq_base); - } + { + struct acpi_table_iosapic *p = + (struct acpi_table_iosapic *)header; + printk(KERN_INFO PREFIX + "IOSAPIC (id[0x%x] address[%p] gsi_base[%d])\n", + p->id, (void *)(unsigned long)p->address, + p->global_irq_base); + } break; case ACPI_MADT_LSAPIC: - { - struct acpi_table_lsapic *p = - (struct acpi_table_lsapic*) header; - printk(KERN_INFO PREFIX "LSAPIC (acpi_id[0x%02x] lsapic_id[0x%02x] lsapic_eid[0x%02x] %s)\n", - p->acpi_id, p->id, p->eid, p->flags.enabled?"enabled":"disabled"); - } + { + struct acpi_table_lsapic *p = + (struct acpi_table_lsapic *)header; + printk(KERN_INFO PREFIX + "LSAPIC (acpi_id[0x%02x] lsapic_id[0x%02x] lsapic_eid[0x%02x] %s)\n", + p->acpi_id, p->id, p->eid, + p->flags.enabled ? "enabled" : "disabled"); + } break; case ACPI_MADT_PLAT_INT_SRC: - { - struct acpi_table_plat_int_src *p = - (struct acpi_table_plat_int_src*) header; - printk(KERN_INFO PREFIX "PLAT_INT_SRC (%s %s type[0x%x] id[0x%04x] eid[0x%x] iosapic_vector[0x%x] global_irq[0x%x]\n", - mps_inti_flags_polarity[p->flags.polarity], - mps_inti_flags_trigger[p->flags.trigger], - p->type, p->id, p->eid, p->iosapic_vector, p->global_irq); - } + { + struct acpi_table_plat_int_src *p = + (struct acpi_table_plat_int_src *)header; + printk(KERN_INFO PREFIX + "PLAT_INT_SRC (%s %s type[0x%x] id[0x%04x] eid[0x%x] iosapic_vector[0x%x] global_irq[0x%x]\n", + mps_inti_flags_polarity[p->flags.polarity], + mps_inti_flags_trigger[p->flags.trigger], + p->type, p->id, p->eid, p->iosapic_vector, + p->global_irq); + } break; default: - printk(KERN_WARNING PREFIX "Found unsupported MADT entry (type = 0x%x)\n", - header->type); + printk(KERN_WARNING PREFIX + "Found unsupported MADT entry (type = 0x%x)\n", + header->type); break; } } - static int -acpi_table_compute_checksum ( - void *table_pointer, - unsigned long length) +acpi_table_compute_checksum(void *table_pointer, unsigned long length) { - u8 *p = (u8 *) table_pointer; - unsigned long remains = length; - unsigned long sum = 0; + u8 *p = (u8 *) table_pointer; + unsigned long remains = length; + unsigned long sum = 0; if (!p || !length) return -EINVAL; @@ -241,9 +247,8 @@ acpi_table_compute_checksum ( * for acpi_blacklisted(), acpi_table_get_sdt() */ int __init -acpi_get_table_header_early ( - enum acpi_table_id id, - struct acpi_table_header **header) +acpi_get_table_header_early(enum acpi_table_id id, + struct acpi_table_header **header) { unsigned int i; enum acpi_table_id temp_id; @@ -260,7 +265,7 @@ acpi_get_table_header_early ( if (sdt_entry[i].id != temp_id) continue; *header = (void *) - __acpi_map_table(sdt_entry[i].pa, sdt_entry[i].size); + __acpi_map_table(sdt_entry[i].pa, sdt_entry[i].size); if (!*header) { printk(KERN_WARNING PREFIX "Unable to map %s\n", acpi_table_signatures[temp_id]); @@ -277,14 +282,17 @@ acpi_get_table_header_early ( /* Map the DSDT header via the pointer in the FADT */ if (id == ACPI_DSDT) { - struct fadt_descriptor_rev2 *fadt = (struct fadt_descriptor_rev2 *) *header; + struct fadt_descriptor_rev2 *fadt = + (struct fadt_descriptor_rev2 *)*header; if (fadt->revision == 3 && fadt->Xdsdt) { - *header = (void *) __acpi_map_table(fadt->Xdsdt, - sizeof(struct acpi_table_header)); + *header = (void *)__acpi_map_table(fadt->Xdsdt, + sizeof(struct + acpi_table_header)); } else if (fadt->V1_dsdt) { - *header = (void *) __acpi_map_table(fadt->V1_dsdt, - sizeof(struct acpi_table_header)); + *header = (void *)__acpi_map_table(fadt->V1_dsdt, + sizeof(struct + acpi_table_header)); } else *header = NULL; @@ -296,21 +304,19 @@ acpi_get_table_header_early ( return 0; } - int __init -acpi_table_parse_madt_family ( - enum acpi_table_id id, - unsigned long madt_size, - int entry_id, - acpi_madt_entry_handler handler, - unsigned int max_entries) +acpi_table_parse_madt_family(enum acpi_table_id id, + unsigned long madt_size, + int entry_id, + acpi_madt_entry_handler handler, + unsigned int max_entries) { - void *madt = NULL; - acpi_table_entry_header *entry; - unsigned int count = 0; - unsigned long madt_end; - unsigned int i; + void *madt = NULL; + acpi_table_entry_header *entry; + unsigned int count = 0; + unsigned long madt_end; + unsigned int i; if (!handler) return -EINVAL; @@ -321,7 +327,7 @@ acpi_table_parse_madt_family ( if (sdt_entry[i].id != id) continue; madt = (void *) - __acpi_map_table(sdt_entry[i].pa, sdt_entry[i].size); + __acpi_map_table(sdt_entry[i].pa, sdt_entry[i].size); if (!madt) { printk(KERN_WARNING PREFIX "Unable to map %s\n", acpi_table_signatures[id]); @@ -336,21 +342,22 @@ acpi_table_parse_madt_family ( return -ENODEV; } - madt_end = (unsigned long) madt + sdt_entry[i].size; + madt_end = (unsigned long)madt + sdt_entry[i].size; /* Parse all entries looking for a match. */ entry = (acpi_table_entry_header *) - ((unsigned long) madt + madt_size); + ((unsigned long)madt + madt_size); - while (((unsigned long) entry) + sizeof(acpi_table_entry_header) < madt_end) { - if (entry->type == entry_id && - (!max_entries || count++ < max_entries)) + while (((unsigned long)entry) + sizeof(acpi_table_entry_header) < + madt_end) { + if (entry->type == entry_id + && (!max_entries || count++ < max_entries)) if (handler(entry, madt_end)) return -EINVAL; entry = (acpi_table_entry_header *) - ((unsigned long) entry + entry->length); + ((unsigned long)entry + entry->length); } if (max_entries && count > max_entries) { printk(KERN_WARNING PREFIX "[%s:0x%02x] ignored %i entries of " @@ -361,25 +368,19 @@ acpi_table_parse_madt_family ( return count; } - int __init -acpi_table_parse_madt ( - enum acpi_madt_entry_id id, - acpi_madt_entry_handler handler, - unsigned int max_entries) +acpi_table_parse_madt(enum acpi_madt_entry_id id, + acpi_madt_entry_handler handler, unsigned int max_entries) { - return acpi_table_parse_madt_family(ACPI_APIC, sizeof(struct acpi_table_madt), - id, handler, max_entries); + return acpi_table_parse_madt_family(ACPI_APIC, + sizeof(struct acpi_table_madt), id, + handler, max_entries); } - -int __init -acpi_table_parse ( - enum acpi_table_id id, - acpi_table_handler handler) +int __init acpi_table_parse(enum acpi_table_id id, acpi_table_handler handler) { - int count = 0; - unsigned int i = 0; + int count = 0; + unsigned int i = 0; if (!handler) return -EINVAL; @@ -392,20 +393,18 @@ acpi_table_parse ( handler(sdt_entry[i].pa, sdt_entry[i].size); else - printk(KERN_WARNING PREFIX "%d duplicate %s table ignored.\n", - count, acpi_table_signatures[id]); + printk(KERN_WARNING PREFIX + "%d duplicate %s table ignored.\n", count, + acpi_table_signatures[id]); } return count; } - -static int __init -acpi_table_get_sdt ( - struct acpi_table_rsdp *rsdp) +static int __init acpi_table_get_sdt(struct acpi_table_rsdp *rsdp) { struct acpi_table_header *header = NULL; - unsigned int i, id = 0; + unsigned int i, id = 0; if (!rsdp) return -EINVAL; @@ -413,24 +412,25 @@ acpi_table_get_sdt ( /* First check XSDT (but only on ACPI 2.0-compatible systems) */ if ((rsdp->revision >= 2) && - (((struct acpi20_table_rsdp*)rsdp)->xsdt_address)) { - - struct acpi_table_xsdt *mapped_xsdt = NULL; + (((struct acpi20_table_rsdp *)rsdp)->xsdt_address)) { + + struct acpi_table_xsdt *mapped_xsdt = NULL; - sdt_pa = ((struct acpi20_table_rsdp*)rsdp)->xsdt_address; + sdt_pa = ((struct acpi20_table_rsdp *)rsdp)->xsdt_address; /* map in just the header */ header = (struct acpi_table_header *) - __acpi_map_table(sdt_pa, sizeof(struct acpi_table_header)); + __acpi_map_table(sdt_pa, sizeof(struct acpi_table_header)); if (!header) { - printk(KERN_WARNING PREFIX "Unable to map XSDT header\n"); + printk(KERN_WARNING PREFIX + "Unable to map XSDT header\n"); return -ENODEV; } /* remap in the entire table before processing */ mapped_xsdt = (struct acpi_table_xsdt *) - __acpi_map_table(sdt_pa, header->length); + __acpi_map_table(sdt_pa, header->length); if (!mapped_xsdt) { printk(KERN_WARNING PREFIX "Unable to map XSDT\n"); return -ENODEV; @@ -438,7 +438,8 @@ acpi_table_get_sdt ( header = &mapped_xsdt->header; if (strncmp(header->signature, "XSDT", 4)) { - printk(KERN_WARNING PREFIX "XSDT signature incorrect\n"); + printk(KERN_WARNING PREFIX + "XSDT signature incorrect\n"); return -ENODEV; } @@ -447,36 +448,39 @@ acpi_table_get_sdt ( return -ENODEV; } - sdt_count = (header->length - sizeof(struct acpi_table_header)) >> 3; + sdt_count = + (header->length - sizeof(struct acpi_table_header)) >> 3; if (sdt_count > ACPI_MAX_TABLES) { - printk(KERN_WARNING PREFIX "Truncated %lu XSDT entries\n", - (sdt_count - ACPI_MAX_TABLES)); + printk(KERN_WARNING PREFIX + "Truncated %lu XSDT entries\n", + (sdt_count - ACPI_MAX_TABLES)); sdt_count = ACPI_MAX_TABLES; } for (i = 0; i < sdt_count; i++) - sdt_entry[i].pa = (unsigned long) mapped_xsdt->entry[i]; + sdt_entry[i].pa = (unsigned long)mapped_xsdt->entry[i]; } /* Then check RSDT */ else if (rsdp->rsdt_address) { - struct acpi_table_rsdt *mapped_rsdt = NULL; + struct acpi_table_rsdt *mapped_rsdt = NULL; sdt_pa = rsdp->rsdt_address; /* map in just the header */ header = (struct acpi_table_header *) - __acpi_map_table(sdt_pa, sizeof(struct acpi_table_header)); + __acpi_map_table(sdt_pa, sizeof(struct acpi_table_header)); if (!header) { - printk(KERN_WARNING PREFIX "Unable to map RSDT header\n"); + printk(KERN_WARNING PREFIX + "Unable to map RSDT header\n"); return -ENODEV; } /* remap in the entire table before processing */ mapped_rsdt = (struct acpi_table_rsdt *) - __acpi_map_table(sdt_pa, header->length); + __acpi_map_table(sdt_pa, header->length); if (!mapped_rsdt) { printk(KERN_WARNING PREFIX "Unable to map RSDT\n"); return -ENODEV; @@ -484,7 +488,8 @@ acpi_table_get_sdt ( header = &mapped_rsdt->header; if (strncmp(header->signature, "RSDT", 4)) { - printk(KERN_WARNING PREFIX "RSDT signature incorrect\n"); + printk(KERN_WARNING PREFIX + "RSDT signature incorrect\n"); return -ENODEV; } @@ -493,19 +498,22 @@ acpi_table_get_sdt ( return -ENODEV; } - sdt_count = (header->length - sizeof(struct acpi_table_header)) >> 2; + sdt_count = + (header->length - sizeof(struct acpi_table_header)) >> 2; if (sdt_count > ACPI_MAX_TABLES) { - printk(KERN_WARNING PREFIX "Truncated %lu RSDT entries\n", - (sdt_count - ACPI_MAX_TABLES)); + printk(KERN_WARNING PREFIX + "Truncated %lu RSDT entries\n", + (sdt_count - ACPI_MAX_TABLES)); sdt_count = ACPI_MAX_TABLES; } for (i = 0; i < sdt_count; i++) - sdt_entry[i].pa = (unsigned long) mapped_rsdt->entry[i]; + sdt_entry[i].pa = (unsigned long)mapped_rsdt->entry[i]; } else { - printk(KERN_WARNING PREFIX "No System Description Table (RSDT/XSDT) specified in RSDP\n"); + printk(KERN_WARNING PREFIX + "No System Description Table (RSDT/XSDT) specified in RSDP\n"); return -ENODEV; } @@ -515,18 +523,17 @@ acpi_table_get_sdt ( /* map in just the header */ header = (struct acpi_table_header *) - __acpi_map_table(sdt_entry[i].pa, - sizeof(struct acpi_table_header)); + __acpi_map_table(sdt_entry[i].pa, + sizeof(struct acpi_table_header)); if (!header) continue; /* remap in the entire table before processing */ header = (struct acpi_table_header *) - __acpi_map_table(sdt_entry[i].pa, - header->length); + __acpi_map_table(sdt_entry[i].pa, header->length); if (!header) continue; - + acpi_table_print(header, sdt_entry[i].pa); if (acpi_table_compute_checksum(header, header->length)) { @@ -537,9 +544,9 @@ acpi_table_get_sdt ( sdt_entry[i].size = header->length; for (id = 0; id < ACPI_TABLE_COUNT; id++) { - if (!strncmp((char *) &header->signature, - acpi_table_signatures[id], - sizeof(header->signature))) { + if (!strncmp((char *)&header->signature, + acpi_table_signatures[id], + sizeof(header->signature))) { sdt_entry[i].id = id; } } @@ -551,7 +558,7 @@ acpi_table_get_sdt ( * against. Unfortunately, we don't know the phys_addr, so just * print 0. Maybe no one will notice. */ - if(!acpi_get_table_header_early(ACPI_DSDT, &header)) + if (!acpi_get_table_header_early(ACPI_DSDT, &header)) acpi_table_print(header, 0); return 0; @@ -566,12 +573,11 @@ acpi_table_get_sdt ( * result: sdt_entry[] is initialized */ -int __init -acpi_table_init (void) +int __init acpi_table_init(void) { - struct acpi_table_rsdp *rsdp = NULL; - unsigned long rsdp_phys = 0; - int result = 0; + struct acpi_table_rsdp *rsdp = NULL; + unsigned long rsdp_phys = 0; + int result = 0; /* Locate and map the Root System Description Table (RSDP) */ @@ -581,19 +587,25 @@ acpi_table_init (void) return -ENODEV; } - rsdp = (struct acpi_table_rsdp *) __va(rsdp_phys); + rsdp = (struct acpi_table_rsdp *)__va(rsdp_phys); if (!rsdp) { printk(KERN_WARNING PREFIX "Unable to map RSDP\n"); return -ENODEV; } - printk(KERN_DEBUG PREFIX "RSDP (v%3.3d %6.6s ) @ 0x%p\n", - rsdp->revision, rsdp->oem_id, (void *) rsdp_phys); + printk(KERN_DEBUG PREFIX + "RSDP (v%3.3d %6.6s ) @ 0x%p\n", + rsdp->revision, rsdp->oem_id, (void *)rsdp_phys); if (rsdp->revision < 2) - result = acpi_table_compute_checksum(rsdp, sizeof(struct acpi_table_rsdp)); + result = + acpi_table_compute_checksum(rsdp, + sizeof(struct acpi_table_rsdp)); else - result = acpi_table_compute_checksum(rsdp, ((struct acpi20_table_rsdp *)rsdp)->length); + result = + acpi_table_compute_checksum(rsdp, + ((struct acpi20_table_rsdp *) + rsdp)->length); if (result) { printk(KERN_WARNING " >>> ERROR: Invalid checksum\n"); |