ACPICA: Remove duplicate table manager

Signed-off-by: Len Brown <len.brown@intel.com>

7 files changed, 50 insertions, 461 deletions

diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 9adabc4dba70..543eac5da176 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -169,16 +169,16 @@ char *__acpi_map_table(unsigned long phys, unsigned long size)
 struct acpi_table_mcfg_config *pci_mmcfg_config;
 int pci_mmcfg_config_num;
 
-int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
+int __init acpi_parse_mcfg(struct acpi_table_header *header)
 {
         struct acpi_table_mcfg *mcfg;
         unsigned long i;
         int config_size;
 
-        if (!phys_addr || !size)
+        if (!header)
                 return -EINVAL;
 
-        mcfg = (struct acpi_table_mcfg *)__acpi_map_table(phys_addr, size);
+        mcfg = (struct acpi_table_mcfg *)header;
         if (!mcfg) {
                 printk(KERN_WARNING PREFIX "Unable to map MCFG\n");
                 return -ENODEV;
@@ -186,7 +186,7 @@ int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
 
         /* how many config structures do we have */
         pci_mmcfg_config_num = 0;
-        i = size - sizeof(struct acpi_table_mcfg);
+        i = header->length - sizeof(struct acpi_table_mcfg);
         while (i >= sizeof(struct acpi_table_mcfg_config)) {
                 ++pci_mmcfg_config_num;
                 i -= sizeof(struct acpi_table_mcfg_config);
@@ -220,14 +220,14 @@ int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
 #endif                          /* CONFIG_PCI_MMCONFIG */
 
 #ifdef CONFIG_X86_LOCAL_APIC
-static int __init acpi_parse_madt(unsigned long phys_addr, unsigned long size)
+static int __init acpi_parse_madt(struct acpi_table_header *header)
 {
         struct acpi_table_madt *madt = NULL;
 
-        if (!phys_addr || !size || !cpu_has_apic)
+        if (!header|| !cpu_has_apic)
                 return -EINVAL;
 
-        madt = (struct acpi_table_madt *)__acpi_map_table(phys_addr, size);
+        madt = (struct acpi_table_madt *)header;
         if (!madt) {
                 printk(KERN_WARNING PREFIX "Unable to map MADT\n");
                 return -ENODEV;
@@ -619,14 +619,14 @@ acpi_scan_rsdp(unsigned long start, unsigned long length)
         return 0;
 }
 
-static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size)
+static int __init acpi_parse_sbf(struct acpi_table_header *header)
 {
         struct acpi_table_sbf *sb;
 
-        if (!phys_addr || !size)
+        if (!header)
                 return -EINVAL;
 
-        sb = (struct acpi_table_sbf *)__acpi_map_table(phys_addr, size);
+        sb = (struct acpi_table_sbf *)header;
         if (!sb) {
                 printk(KERN_WARNING PREFIX "Unable to map SBF\n");
                 return -ENODEV;
@@ -639,16 +639,16 @@ static int __init acpi_parse_sbf(unsigned long phys_addr, unsigned long size)
 
 #ifdef CONFIG_HPET_TIMER
 
-static int __init acpi_parse_hpet(unsigned long phys, unsigned long size)
+static int __init acpi_parse_hpet(struct acpi_table_header *header)
 {
         struct acpi_table_hpet *hpet_tbl;
         struct resource *hpet_res;
         resource_size_t res_start;
 
-        if (!phys || !size)
+        if (!header)
                 return -EINVAL;
 
-        hpet_tbl = (struct acpi_table_hpet *)__acpi_map_table(phys, size);
+        hpet_tbl = (struct acpi_table_hpet *)header;
         if (!hpet_tbl) {
                 printk(KERN_WARNING PREFIX "Unable to map HPET\n");
                 return -ENODEV;
@@ -707,11 +707,11 @@ static int __init acpi_parse_hpet(unsigned long phys, unsigned long size)
 extern u32 pmtmr_ioport;
 #endif
 
-static int __init acpi_parse_fadt(unsigned long phys, unsigned long size)
+static int __init acpi_parse_fadt(struct acpi_table_header *header)
 {
         struct fadt_descriptor *fadt = NULL;
 
-        fadt = (struct fadt_descriptor *)__acpi_map_table(phys, size);
+        fadt = (struct fadt_descriptor *)header;
         if (!fadt) {
                 printk(KERN_WARNING PREFIX "Unable to map FADT\n");
                 return 0;
@@ -901,7 +901,7 @@ static void __init acpi_process_madt(void)
 #ifdef CONFIG_X86_LOCAL_APIC
         int count, error;
 
-        count = acpi_table_parse(ACPI_APIC, acpi_parse_madt);
+        count = acpi_table_parse("APIC", acpi_parse_madt);
         if (count >= 1) {
 
                 /*
@@ -1197,7 +1197,7 @@ int __init acpi_boot_table_init(void)
                 return error;
         }
 
-        acpi_table_parse(ACPI_BOOT, acpi_parse_sbf);
+        acpi_table_parse("BOOT", acpi_parse_sbf);
 
         /*
          * blacklist may disable ACPI entirely
@@ -1225,19 +1225,19 @@ int __init acpi_boot_init(void)
         if (acpi_disabled && !acpi_ht)
                 return 1;
 
-        acpi_table_parse(ACPI_BOOT, acpi_parse_sbf);
+        acpi_table_parse("BOOT", acpi_parse_sbf);
 
         /*
          * set sci_int and PM timer address
          */
-        acpi_table_parse(ACPI_FADT, acpi_parse_fadt);
+        acpi_table_parse(ACPI_SIG_FADT, acpi_parse_fadt);
 
         /*
          * Process the Multiple APIC Description Table (MADT), if present
          */
         acpi_process_madt();
 
-        acpi_table_parse(ACPI_HPET, acpi_parse_hpet);
+        acpi_table_parse("HPET", acpi_parse_hpet);
 
         return 0;
 }
diff --git a/arch/i386/kernel/acpi/earlyquirk.c b/arch/i386/kernel/acpi/earlyquirk.c
index 4b60af7f91dd..4261c8501b7e 100644
--- a/arch/i386/kernel/acpi/earlyquirk.c
+++ b/arch/i386/kernel/acpi/earlyquirk.c
@@ -16,7 +16,7 @@
 
 static int nvidia_hpet_detected __initdata;
 
-static int __init nvidia_hpet_check(unsigned long phys, unsigned long size)
+static int __init nvidia_hpet_check(struct acpi_table_header *header)
 {
         nvidia_hpet_detected = 1;
         return 0;
@@ -30,7 +30,7 @@ static int __init check_bridge(int vendor, int device)
            is enabled. */
         if (!acpi_use_timer_override && vendor == PCI_VENDOR_ID_NVIDIA) {
                 nvidia_hpet_detected = 0;
-                acpi_table_parse(ACPI_HPET, nvidia_hpet_check);
+                acpi_table_parse("HPET", nvidia_hpet_check);
                 if (nvidia_hpet_detected == 0) {
                         acpi_skip_timer_override = 1;
                           printk(KERN_INFO "Nvidia board "
diff --git a/arch/i386/mach-es7000/es7000.h b/arch/i386/mach-es7000/es7000.h
index 80566ca4a80a..c8d5aa132fa0 100644
--- a/arch/i386/mach-es7000/es7000.h
+++ b/arch/i386/mach-es7000/es7000.h
@@ -84,15 +84,6 @@ struct es7000_oem_table {
 };
 
 #ifdef CONFIG_ACPI
-struct acpi_table_sdt {
-        unsigned long pa;
-        unsigned long count;
-        struct {
-                unsigned long pa;
-                enum acpi_table_id id;
-                unsigned long size;
-        }       entry[50];
-};
 
 struct oem_table {
         struct acpi_table_header Header;
diff --git a/arch/i386/mach-es7000/es7000plat.c b/arch/i386/mach-es7000/es7000plat.c
index 3d0fc853516d..9be6ceabf042 100644
--- a/arch/i386/mach-es7000/es7000plat.c
+++ b/arch/i386/mach-es7000/es7000plat.c
@@ -160,51 +160,14 @@ parse_unisys_oem (char *oemptr)
 int __init
 find_unisys_acpi_oem_table(unsigned long *oem_addr)
 {
-        struct acpi_table_rsdp          *rsdp = NULL;
-        unsigned long                   rsdp_phys = 0;
-        struct acpi_table_header        *header = NULL;
-        int                             i;
-        struct acpi_table_sdt           sdt;
-
-        rsdp_phys = acpi_find_rsdp();
-        rsdp = __va(rsdp_phys);
-        if (rsdp->rsdt_address) {
-                struct acpi_table_rsdt  *mapped_rsdt = NULL;
-                sdt.pa = rsdp->rsdt_address;
-
-                header = (struct acpi_table_header *)
-                        __acpi_map_table(sdt.pa, sizeof(struct acpi_table_header));
-                if (!header)
-                        return -ENODEV;
-
-                sdt.count = (header->length - sizeof(struct acpi_table_header)) >> 3;
-                mapped_rsdt = (struct acpi_table_rsdt *)
-                        __acpi_map_table(sdt.pa, header->length);
-                if (!mapped_rsdt)
-                        return -ENODEV;
-
-                header = &mapped_rsdt->header;
-
-                for (i = 0; i < sdt.count; i++)
-                        sdt.entry[i].pa = (unsigned long) mapped_rsdt->entry[i];
-        };
-        for (i = 0; i < sdt.count; i++) {
-
-                header = (struct acpi_table_header *)
-                        __acpi_map_table(sdt.entry[i].pa,
-                                sizeof(struct acpi_table_header));
-                if (!header)
-                        continue;
-                if (!strncmp((char *) &header->signature, "OEM1", 4)) {
-                        if (!strncmp((char *) &header->oem_id, "UNISYS", 6)) {
-                                void *addr;
-                                struct oem_table *t;
-                                acpi_table_print(header, sdt.entry[i].pa);
-                                t = (struct oem_table *) __acpi_map_table(sdt.entry[i].pa, header->length);
-                                addr = (void *) __acpi_map_table(t->OEMTableAddr, t->OEMTableSize);
-                                *oem_addr = (unsigned long) addr;
-                                return 0;
-                        }
+        struct acpi_table_header *header = NULL;
+        int i = 0;
+        while (ACPI_SUCCESS(acpi_get_table("OEM1", i++, &header))) {
+                if (!memcmp((char *) &header->oem_id, "UNISYS", 6)) {
+                        struct oem_table *t = (struct oem_table *)header;
+                        *oem_addr = (unsigned long)__acpi_map_table(t->OEMTableAddr,
+                                                                    t->OEMTableSize);
+                        return 0;
                 }
         }
         return -1;
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index e2616a266e13..80522e331e34 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -199,7 +199,7 @@ void __init pci_mmcfg_init(int type)
         if ((pci_probe & PCI_PROBE_MMCONF) == 0)
                 return;
 
-        acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
+        acpi_table_parse("MCFG", acpi_parse_mcfg);
         if ((pci_mmcfg_config_num == 0) ||
             (pci_mmcfg_config == NULL) ||
             (pci_mmcfg_config[0].base_address == 0))
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 5bb143151169..962ff29fbf07 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -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;
 }
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index b3e8a268f6d6..88cb1fe22b48 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -340,7 +340,7 @@ enum acpi_table_id {
         ACPI_TABLE_COUNT
 };
 
-typedef int (*acpi_table_handler) (unsigned long phys_addr, unsigned long size);
+typedef int (*acpi_table_handler) (struct acpi_table_header *header);
 
 extern acpi_table_handler acpi_table_ops[ACPI_TABLE_COUNT];
 
@@ -353,11 +353,10 @@ int acpi_boot_table_init (void);
 int acpi_numa_init (void);
 
 int acpi_table_init (void);
-int acpi_table_parse (enum acpi_table_id id, acpi_table_handler handler);
-int acpi_get_table_header_early (enum acpi_table_id id, struct acpi_table_header **header);
+int acpi_table_parse (char *id, acpi_table_handler handler);
 int acpi_table_parse_madt (enum acpi_madt_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
 int acpi_table_parse_srat (enum acpi_srat_entry_id id, acpi_madt_entry_handler handler, unsigned int max_entries);
-int acpi_parse_mcfg (unsigned long phys_addr, unsigned long size);
+int acpi_parse_mcfg (struct acpi_table_header *header);
 void acpi_table_print (struct acpi_table_header *header, unsigned long phys_addr);
 void acpi_table_print_madt_entry (acpi_table_entry_header *madt);
 void acpi_table_print_srat_entry (acpi_table_entry_header *srat);