|
@@ -38,71 +38,11 @@
|
|
|
|
|
|
#define ACPI_MAX_TABLES 128
|
|
|
|
|
|
-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",
|
|
|
-};
|
|
|
-
|
|
|
static char *mps_inti_flags_polarity[] = { "dfl", "high", "res", "low" };
|
|
|
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;
|
|
|
-} __attribute__ ((packed));
|
|
|
-
|
|
|
-static unsigned long sdt_pa; /* Physical Address */
|
|
|
-static unsigned long sdt_count; /* Table count */
|
|
|
-
|
|
|
-static struct acpi_table_sdt sdt_entry[ACPI_MAX_TABLES] __initdata;
|
|
|
static struct acpi_table_desc initial_tables[ACPI_MAX_TABLES] __initdata;
|
|
|
|
|
|
-void acpi_table_print(struct acpi_table_header *header, unsigned long phys_addr)
|
|
|
-{
|
|
|
- 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))) {
|
|
|
- name = "MADT";
|
|
|
- } else if (!strncmp((char *)&header->signature,
|
|
|
- acpi_table_signatures[ACPI_FADT],
|
|
|
- sizeof(header->signature))) {
|
|
|
- name = "FADT";
|
|
|
- } 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);
|
|
|
-}
|
|
|
-
|
|
|
void acpi_table_print_madt_entry(acpi_table_entry_header * header)
|
|
|
{
|
|
|
if (!header)
|
|
@@ -226,123 +166,32 @@ void acpi_table_print_madt_entry(acpi_table_entry_header * header)
|
|
|
}
|
|
|
}
|
|
|
|
|
|
-static int
|
|
|
-acpi_table_compute_checksum(void *table_pointer, unsigned long length)
|
|
|
-{
|
|
|
- u8 *p = table_pointer;
|
|
|
- unsigned long remains = length;
|
|
|
- unsigned long sum = 0;
|
|
|
-
|
|
|
- if (!p || !length)
|
|
|
- return -EINVAL;
|
|
|
-
|
|
|
- while (remains--)
|
|
|
- sum += *p++;
|
|
|
-
|
|
|
- return (sum & 0xFF);
|
|
|
-}
|
|
|
-
|
|
|
-/*
|
|
|
- * acpi_get_table_header_early()
|
|
|
- * for acpi_blacklisted(), acpi_table_get_sdt()
|
|
|
- */
|
|
|
-int __init
|
|
|
-acpi_get_table_header_early(enum acpi_table_id id,
|
|
|
- struct acpi_table_header **header)
|
|
|
-{
|
|
|
- unsigned int i;
|
|
|
- enum acpi_table_id temp_id;
|
|
|
-
|
|
|
- /* DSDT is different from the rest */
|
|
|
- if (id == ACPI_DSDT)
|
|
|
- temp_id = ACPI_FADT;
|
|
|
- else
|
|
|
- temp_id = id;
|
|
|
-
|
|
|
- /* Locate the table. */
|
|
|
-
|
|
|
- for (i = 0; i < sdt_count; i++) {
|
|
|
- if (sdt_entry[i].id != temp_id)
|
|
|
- continue;
|
|
|
- *header = (void *)
|
|
|
- __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]);
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- if (!*header) {
|
|
|
- printk(KERN_WARNING PREFIX "%s not present\n",
|
|
|
- acpi_table_signatures[id]);
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- /* Map the DSDT header via the pointer in the FADT */
|
|
|
- if (id == ACPI_DSDT) {
|
|
|
- struct fadt_descriptor *fadt =
|
|
|
- (struct fadt_descriptor *)*header;
|
|
|
-
|
|
|
- if (fadt->header.revision == 3 && fadt->Xdsdt) {
|
|
|
- *header = (void *)__acpi_map_table(fadt->Xdsdt,
|
|
|
- sizeof(struct
|
|
|
- acpi_table_header));
|
|
|
- } else if (fadt->dsdt) {
|
|
|
- *header = (void *)__acpi_map_table(fadt->dsdt,
|
|
|
- sizeof(struct
|
|
|
- acpi_table_header));
|
|
|
- } else
|
|
|
- *header = NULL;
|
|
|
-
|
|
|
- if (!*header) {
|
|
|
- printk(KERN_WARNING PREFIX "Unable to map DSDT\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
|
|
|
int __init
|
|
|
-acpi_table_parse_madt_family(enum acpi_table_id id,
|
|
|
+acpi_table_parse_madt_family(char *id,
|
|
|
unsigned long madt_size,
|
|
|
int entry_id,
|
|
|
acpi_madt_entry_handler handler,
|
|
|
unsigned int max_entries)
|
|
|
{
|
|
|
- void *madt = NULL;
|
|
|
+ struct acpi_table_header *madt = NULL;
|
|
|
acpi_table_entry_header *entry;
|
|
|
unsigned int count = 0;
|
|
|
unsigned long madt_end;
|
|
|
- unsigned int i;
|
|
|
|
|
|
if (!handler)
|
|
|
return -EINVAL;
|
|
|
|
|
|
/* Locate the MADT (if exists). There should only be one. */
|
|
|
|
|
|
- for (i = 0; i < sdt_count; i++) {
|
|
|
- if (sdt_entry[i].id != id)
|
|
|
- continue;
|
|
|
- madt = (void *)
|
|
|
- __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]);
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
- break;
|
|
|
- }
|
|
|
+ acpi_get_table(id, 0, &madt);
|
|
|
|
|
|
if (!madt) {
|
|
|
- printk(KERN_WARNING PREFIX "%s not present\n",
|
|
|
- acpi_table_signatures[id]);
|
|
|
+ printk(KERN_WARNING PREFIX "%4.4s not present\n", id);
|
|
|
return -ENODEV;
|
|
|
}
|
|
|
|
|
|
- madt_end = (unsigned long)madt + sdt_entry[i].size;
|
|
|
+ madt_end = (unsigned long)madt + madt->length;
|
|
|
|
|
|
/* Parse all entries looking for a match. */
|
|
|
|
|
@@ -360,9 +209,8 @@ acpi_table_parse_madt_family(enum acpi_table_id id,
|
|
|
((unsigned long)entry + entry->length);
|
|
|
}
|
|
|
if (max_entries && count > max_entries) {
|
|
|
- printk(KERN_WARNING PREFIX "[%s:0x%02x] ignored %i entries of "
|
|
|
- "%i found\n", acpi_table_signatures[id], entry_id,
|
|
|
- count - max_entries, count);
|
|
|
+ printk(KERN_WARNING PREFIX "[%4.4s:0x%02x] ignored %i entries of "
|
|
|
+ "%i found\n", id, entry_id, count - max_entries, count);
|
|
|
}
|
|
|
|
|
|
return count;
|
|
@@ -372,195 +220,24 @@ int __init
|
|
|
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,
|
|
|
+ return acpi_table_parse_madt_family("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(char *id, acpi_table_handler handler)
|
|
|
{
|
|
|
- int count = 0;
|
|
|
- unsigned int i = 0;
|
|
|
+ struct acpi_table_header *table = NULL;
|
|
|
|
|
|
if (!handler)
|
|
|
return -EINVAL;
|
|
|
|
|
|
- for (i = 0; i < sdt_count; i++) {
|
|
|
- if (sdt_entry[i].id != id)
|
|
|
- continue;
|
|
|
- count++;
|
|
|
- if (count == 1)
|
|
|
- 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]);
|
|
|
- }
|
|
|
-
|
|
|
- return count;
|
|
|
-}
|
|
|
-
|
|
|
-static int __init acpi_table_get_sdt(struct acpi_table_rsdp *rsdp)
|
|
|
-{
|
|
|
- struct acpi_table_header *header = NULL;
|
|
|
- unsigned int i, id = 0;
|
|
|
-
|
|
|
- if (!rsdp)
|
|
|
- return -EINVAL;
|
|
|
-
|
|
|
- /* First check XSDT (but only on ACPI 2.0-compatible systems) */
|
|
|
-
|
|
|
- if ((rsdp->revision >= 2) && rsdp->xsdt_physical_address) {
|
|
|
-
|
|
|
- struct acpi_table_xsdt *mapped_xsdt = NULL;
|
|
|
-
|
|
|
- sdt_pa = rsdp->xsdt_physical_address;
|
|
|
-
|
|
|
- /* map in just the header */
|
|
|
- header = (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");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- /* remap in the entire table before processing */
|
|
|
- mapped_xsdt = (struct acpi_table_xsdt *)
|
|
|
- __acpi_map_table(sdt_pa, header->length);
|
|
|
- if (!mapped_xsdt) {
|
|
|
- printk(KERN_WARNING PREFIX "Unable to map XSDT\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
- header = &mapped_xsdt->header;
|
|
|
-
|
|
|
- if (strncmp(header->signature, "XSDT", 4)) {
|
|
|
- printk(KERN_WARNING PREFIX
|
|
|
- "XSDT signature incorrect\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- if (acpi_table_compute_checksum(header, header->length)) {
|
|
|
- printk(KERN_WARNING PREFIX "Invalid XSDT checksum\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- 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));
|
|
|
- sdt_count = ACPI_MAX_TABLES;
|
|
|
- }
|
|
|
-
|
|
|
- for (i = 0; i < sdt_count; i++)
|
|
|
- sdt_entry[i].pa = (unsigned long)mapped_xsdt->table_offset_entry[i];
|
|
|
- }
|
|
|
-
|
|
|
- /* Then check RSDT */
|
|
|
-
|
|
|
- else if (rsdp->rsdt_physical_address) {
|
|
|
-
|
|
|
- struct acpi_table_rsdt *mapped_rsdt = NULL;
|
|
|
-
|
|
|
- sdt_pa = rsdp->rsdt_physical_address;
|
|
|
-
|
|
|
- /* map in just the header */
|
|
|
- header = (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");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- /* remap in the entire table before processing */
|
|
|
- mapped_rsdt = (struct acpi_table_rsdt *)
|
|
|
- __acpi_map_table(sdt_pa, header->length);
|
|
|
- if (!mapped_rsdt) {
|
|
|
- printk(KERN_WARNING PREFIX "Unable to map RSDT\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
- header = &mapped_rsdt->header;
|
|
|
-
|
|
|
- if (strncmp(header->signature, "RSDT", 4)) {
|
|
|
- printk(KERN_WARNING PREFIX
|
|
|
- "RSDT signature incorrect\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- if (acpi_table_compute_checksum(header, header->length)) {
|
|
|
- printk(KERN_WARNING PREFIX "Invalid RSDT checksum\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- 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));
|
|
|
- sdt_count = ACPI_MAX_TABLES;
|
|
|
- }
|
|
|
-
|
|
|
- for (i = 0; i < sdt_count; i++)
|
|
|
- sdt_entry[i].pa = (unsigned long)mapped_rsdt->table_offset_entry[i];
|
|
|
- }
|
|
|
-
|
|
|
- else {
|
|
|
- printk(KERN_WARNING PREFIX
|
|
|
- "No System Description Table (RSDT/XSDT) specified in RSDP\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- acpi_table_print(header, sdt_pa);
|
|
|
-
|
|
|
- for (i = 0; i < sdt_count; i++) {
|
|
|
-
|
|
|
- /* map in just the header */
|
|
|
- header = (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);
|
|
|
- if (!header)
|
|
|
- continue;
|
|
|
-
|
|
|
- acpi_table_print(header, sdt_entry[i].pa);
|
|
|
-
|
|
|
- if (acpi_table_compute_checksum(header, header->length)) {
|
|
|
- printk(KERN_WARNING " >>> ERROR: Invalid checksum\n");
|
|
|
- continue;
|
|
|
- }
|
|
|
-
|
|
|
- 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))) {
|
|
|
- sdt_entry[i].id = id;
|
|
|
- }
|
|
|
- }
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * The DSDT is *not* in the RSDT (why not? no idea.) but we want
|
|
|
- * to print its info, because this is what people usually blacklist
|
|
|
- * 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))
|
|
|
- acpi_table_print(header, 0);
|
|
|
-
|
|
|
- return 0;
|
|
|
+ acpi_get_table(id, 0, &table);
|
|
|
+ if (table) {
|
|
|
+ handler(table);
|
|
|
+ return 1;
|
|
|
+ } else
|
|
|
+ return 0;
|
|
|
}
|
|
|
|
|
|
/*
|
|
@@ -574,47 +251,6 @@ static int __init acpi_table_get_sdt(struct acpi_table_rsdp *rsdp)
|
|
|
|
|
|
int __init acpi_table_init(void)
|
|
|
{
|
|
|
- struct acpi_table_rsdp *rsdp = NULL;
|
|
|
- unsigned long rsdp_phys = 0;
|
|
|
- int result = 0;
|
|
|
-
|
|
|
- /* Locate and map the Root System Description Table (RSDP) */
|
|
|
-
|
|
|
- rsdp_phys = acpi_find_rsdp();
|
|
|
- if (!rsdp_phys) {
|
|
|
- printk(KERN_ERR PREFIX "Unable to locate RSDP\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- rsdp = (struct acpi_table_rsdp *)__acpi_map_table(rsdp_phys,
|
|
|
- sizeof(struct acpi_table_rsdp));
|
|
|
- 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);
|
|
|
-
|
|
|
- if (rsdp->revision < 2)
|
|
|
- result =
|
|
|
- acpi_table_compute_checksum(rsdp, ACPI_RSDP_REV0_SIZE);
|
|
|
- else
|
|
|
- result =
|
|
|
- acpi_table_compute_checksum(rsdp, rsdp->length);
|
|
|
-
|
|
|
- if (result) {
|
|
|
- printk(KERN_WARNING " >>> ERROR: Invalid checksum\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
-
|
|
|
- /* Locate and map the System Description table (RSDT/XSDT) */
|
|
|
-
|
|
|
- if (acpi_table_get_sdt(rsdp))
|
|
|
- return -ENODEV;
|
|
|
-
|
|
|
acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0);
|
|
|
-
|
|
|
return 0;
|
|
|
}
|