ACPICA: minimal patch to integrate new tables into Linux

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

16 files changed, 135 insertions, 160 deletions

diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index 396140bbbe5..31ad70a6e22 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -26,7 +26,7 @@
  *  Pontus Fuchs   - Helper functions, cleanup
  *  Johann Wiesner - Small compile fixes
  *  John Belmonte  - ACPI code for Toshiba laptop was a good starting point.
- *  Éric Burghard  - LED display support for W1N
+ *  �ic Burghard  - LED display support for W1N
  *
  */
 
@@ -1128,7 +1128,6 @@ static int asus_model_match(char *model)
 static int asus_hotk_get_info(void)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-	struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *model = NULL;
 	int bsts_result;
 	char *string = NULL;
@@ -1142,11 +1141,9 @@ static int asus_hotk_get_info(void)
 	 * HID), this bit will be moved. A global variable asus_info contains
 	 * the DSDT header.
 	 */
-	status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
+	status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info);
 	if (ACPI_FAILURE(status))
 		printk(KERN_WARNING "  Couldn't get the DSDT table header\n");
-	else
-		asus_info = dsdt.pointer;
 
 	/* We have to write 0 on init this far for all ASUS models */
 	if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) {
@@ -1358,8 +1355,6 @@ static void __exit asus_acpi_exit(void)
 	acpi_bus_unregister_driver(&asus_hotk_driver);
 	remove_proc_entry(PROC_ASUS, acpi_root_dir);
 
-	kfree(asus_info);
-
 	return;
 }
 
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index f9c972b26f4..bdc169bc054 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -44,7 +44,7 @@ struct acpi_blacklist_item {
 	char oem_id[7];
 	char oem_table_id[9];
 	u32 oem_revision;
-	acpi_table_type table;
+	char *table;
 	enum acpi_blacklist_predicates oem_revision_predicate;
 	char *reason;
 	u32 is_critical_error;
@@ -56,18 +56,18 @@ struct acpi_blacklist_item {
  */
 static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
 	/* Compaq Presario 1700 */
-	{"PTLTD ", "  DSDT  ", 0x06040000, ACPI_DSDT, less_than_or_equal,
+	{"PTLTD ", "  DSDT  ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
 	 "Multiple problems", 1},
 	/* Sony FX120, FX140, FX150? */
-	{"SONY  ", "U0      ", 0x20010313, ACPI_DSDT, less_than_or_equal,
+	{"SONY  ", "U0      ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
 	 "ACPI driver problem", 1},
 	/* Compaq Presario 800, Insyde BIOS */
-	{"INT440", "SYSFexxx", 0x00001001, ACPI_DSDT, less_than_or_equal,
+	{"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
 	 "Does not use _REG to protect EC OpRegions", 1},
 	/* IBM 600E - _ADR should return 7, but it returns 1 */
-	{"IBM   ", "TP600E  ", 0x00000105, ACPI_DSDT, less_than_or_equal,
+	{"IBM   ", "TP600E  ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
 	 "Incorrect _ADR", 1},
-	{"ASUS\0\0", "P2B-S   ", 0, ACPI_DSDT, all_versions,
+	{"ASUS\0\0", "P2B-S   ", 0, ACPI_SIG_DSDT, all_versions,
 	 "Bogus PCI routing", 1},
 
 	{""}
@@ -106,8 +106,7 @@ int __init acpi_blacklisted(void)
 	struct acpi_table_header *table_header;
 
 	while (acpi_blacklist[i].oem_id[0] != '\0') {
-		if (acpi_get_table_header_early
-		    (acpi_blacklist[i].table, &table_header)) {
+		if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
 			i++;
 			continue;
 		}
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 766332e4559..cb807c43e59 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -44,9 +44,6 @@ ACPI_MODULE_NAME("acpi_bus")
 extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger);
 #endif
 
-struct fadt_descriptor acpi_fadt;
-EXPORT_SYMBOL(acpi_fadt);
-
 struct acpi_device *acpi_root;
 struct proc_dir_entry *acpi_root_dir;
 EXPORT_SYMBOL(acpi_root_dir);
@@ -582,11 +579,12 @@ static int __init acpi_bus_init_irq(void)
 	return 0;
 }
 
+acpi_native_uint acpi_gbl_permanent_mmap;
+
+
 void __init acpi_early_init(void)
 {
 	acpi_status status = AE_OK;
-	struct acpi_buffer buffer = { sizeof(acpi_fadt), &acpi_fadt };
-
 
 	if (acpi_disabled)
 		return;
@@ -597,6 +595,15 @@ void __init acpi_early_init(void)
 	if (!acpi_strict)
 		acpi_gbl_enable_interpreter_slack = TRUE;
 
+	acpi_gbl_permanent_mmap = 1;
+
+	status = acpi_reallocate_root_table();
+	if (ACPI_FAILURE(status)) {
+		printk(KERN_ERR PREFIX
+		       "Unable to reallocate ACPI tables\n");
+		goto error0;
+	}
+
 	status = acpi_initialize_subsystem();
 	if (ACPI_FAILURE(status)) {
 		printk(KERN_ERR PREFIX
@@ -611,14 +618,6 @@ void __init acpi_early_init(void)
 		goto error0;
 	}
 
-	/*
-	 * Get a separate copy of the FADT for use by other drivers.
-	 */
-	status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &buffer);
-	if (ACPI_FAILURE(status)) {
-		printk(KERN_ERR PREFIX "Unable to get the FADT\n");
-		goto error0;
-	}
 #ifdef CONFIG_X86
 	if (!acpi_ioapic) {
 		extern acpi_interrupt_flags acpi_sci_flags;
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index cbdf031f3c0..7a1f2baff64 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -872,9 +872,7 @@ static int __init acpi_ec_get_real_ecdt(void)
 	acpi_status status;
 	struct acpi_table_ecdt *ecdt_ptr;
 
-	status = acpi_get_firmware_table("ECDT", 1, ACPI_LOGICAL_ADDRESSING,
-					 (struct acpi_table_header **)
-					 &ecdt_ptr);
+	status = acpi_get_table("ECDT", 1, (struct acpi_table_header **)&ecdt_ptr);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c
index 2e17ec75af0..b61107b0526 100644
--- a/drivers/acpi/motherboard.c
+++ b/drivers/acpi/motherboard.c
@@ -134,41 +134,41 @@ static void __init acpi_request_region (struct acpi_generic_address *addr,
 	if (!addr->address || !length)
 		return;
 
-	if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_IO)
+	if (addr->space_id == ACPI_ADR_SPACE_SYSTEM_IO)
 		request_region(addr->address, length, desc);
-	else if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
+	else if (addr->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
 		request_mem_region(addr->address, length, desc);
 }
 
 static void __init acpi_reserve_resources(void)
 {
-	acpi_request_region(&acpi_gbl_FADT->xpm1a_evt_blk,
-			       acpi_gbl_FADT->pm1_evt_len, "ACPI PM1a_EVT_BLK");
+	acpi_request_region(&acpi_gbl_FADT.xpm1a_event_block,
+			       acpi_gbl_FADT.pm1_event_length, "ACPI PM1a_EVT_BLK");
 
-	acpi_request_region(&acpi_gbl_FADT->xpm1b_evt_blk,
-			       acpi_gbl_FADT->pm1_evt_len, "ACPI PM1b_EVT_BLK");
+	acpi_request_region(&acpi_gbl_FADT.xpm1b_event_block,
+			       acpi_gbl_FADT.pm1_event_length, "ACPI PM1b_EVT_BLK");
 
-	acpi_request_region(&acpi_gbl_FADT->xpm1a_cnt_blk,
-			       acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1a_CNT_BLK");
+	acpi_request_region(&acpi_gbl_FADT.xpm1a_control_block,
+			       acpi_gbl_FADT.pm1_control_length, "ACPI PM1a_CNT_BLK");
 
-	acpi_request_region(&acpi_gbl_FADT->xpm1b_cnt_blk,
-			       acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1b_CNT_BLK");
+	acpi_request_region(&acpi_gbl_FADT.xpm1b_control_block,
+			       acpi_gbl_FADT.pm1_control_length, "ACPI PM1b_CNT_BLK");
 
-	if (acpi_gbl_FADT->pm_tm_len == 4)
-		acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "ACPI PM_TMR");
+	if (acpi_gbl_FADT.pm_timer_length == 4)
+		acpi_request_region(&acpi_gbl_FADT.xpm_timer_block, 4, "ACPI PM_TMR");
 
-	acpi_request_region(&acpi_gbl_FADT->xpm2_cnt_blk,
-			       acpi_gbl_FADT->pm2_cnt_len, "ACPI PM2_CNT_BLK");
+	acpi_request_region(&acpi_gbl_FADT.xpm2_control_block,
+			       acpi_gbl_FADT.pm2_control_length, "ACPI PM2_CNT_BLK");
 
 	/* Length of GPE blocks must be a non-negative multiple of 2 */
 
-	if (!(acpi_gbl_FADT->gpe0_blk_len & 0x1))
-		acpi_request_region(&acpi_gbl_FADT->xgpe0_blk,
-			       acpi_gbl_FADT->gpe0_blk_len, "ACPI GPE0_BLK");
+	if (!(acpi_gbl_FADT.gpe0_block_length & 0x1))
+		acpi_request_region(&acpi_gbl_FADT.xgpe0_block,
+			       acpi_gbl_FADT.gpe0_block_length, "ACPI GPE0_BLK");
 
-	if (!(acpi_gbl_FADT->gpe1_blk_len & 0x1))
-		acpi_request_region(&acpi_gbl_FADT->xgpe1_blk,
-			       acpi_gbl_FADT->gpe1_blk_len, "ACPI GPE1_BLK");
+	if (!(acpi_gbl_FADT.gpe1_block_length & 0x1))
+		acpi_request_region(&acpi_gbl_FADT.xgpe1_block,
+			       acpi_gbl_FADT.gpe1_block_length, "ACPI GPE1_BLK");
 }
 
 static int __init acpi_motherboard_init(void)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 57ae1e5cde0..c1c2100fe13 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -36,6 +36,7 @@
 #include <linux/delay.h>
 #include <linux/workqueue.h>
 #include <linux/nmi.h>
+#include <linux/acpi.h>
 #include <acpi/acpi.h>
 #include <asm/io.h>
 #include <acpi/acpi_bus.h>
@@ -136,53 +137,43 @@ void acpi_os_vprintf(const char *fmt, va_list args)
 #endif
 }
 
-acpi_status acpi_os_get_root_pointer(u32 flags, struct acpi_pointer *addr)
+acpi_physical_address __init acpi_os_get_root_pointer(void)
 {
 	if (efi_enabled) {
-		addr->pointer_type = ACPI_PHYSICAL_POINTER;
 		if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
-			addr->pointer.physical = efi.acpi20;
+			return efi.acpi20;
 		else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
-			addr->pointer.physical = efi.acpi;
+			return efi.acpi;
 		else {
 			printk(KERN_ERR PREFIX
 			       "System description tables not found\n");
-			return AE_NOT_FOUND;
+			return 0;
 		}
-	} else {
-		if (ACPI_FAILURE(acpi_find_root_pointer(flags, addr))) {
-			printk(KERN_ERR PREFIX
-			       "System description tables not found\n");
-			return AE_NOT_FOUND;
-		}
-	}
-
-	return AE_OK;
+	} else
+		return acpi_find_rsdp();
 }
 
-acpi_status
-acpi_os_map_memory(acpi_physical_address phys, acpi_size size,
-		   void __iomem ** virt)
+void __iomem *acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
 {
 	if (phys > ULONG_MAX) {
 		printk(KERN_ERR PREFIX "Cannot map memory that high\n");
-		return AE_BAD_PARAMETER;
+		return 0;
 	}
-	/*
-	 * ioremap checks to ensure this is in reserved space
-	 */
-	*virt = ioremap((unsigned long)phys, size);
-
-	if (!*virt)
-		return AE_NO_MEMORY;
-
-	return AE_OK;
+	if (acpi_gbl_permanent_mmap)
+		/*
+		* ioremap checks to ensure this is in reserved space
+		*/
+		return ioremap((unsigned long)phys, size);
+	else
+		return __acpi_map_table((unsigned long)phys, size);
 }
 EXPORT_SYMBOL_GPL(acpi_os_map_memory);
 
 void acpi_os_unmap_memory(void __iomem * virt, acpi_size size)
 {
-	iounmap(virt);
+	if (acpi_gbl_permanent_mmap) {
+		iounmap(virt);
+	}
 }
 EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
 
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 5f9496d59ed..4d552f7caa9 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -431,7 +431,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr)
 	 * Check to see if we have bus mastering arbitration control.  This
 	 * is required for proper C3 usage (to maintain cache coherency).
 	 */
-	if (acpi_fadt.V1_pm2_cnt_blk && acpi_fadt.pm2_cnt_len) {
+	if (acpi_fadt.pm2_control_block && acpi_fadt.pm2_control_length) {
 		pr->flags.bm_control = 1;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Bus mastering arbitration control present\n"));
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 3f30af21574..9fa3d3965bb 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -160,7 +160,7 @@ static inline u32 ticks_elapsed(u32 t1, u32 t2)
 {
 	if (t2 >= t1)
 		return (t2 - t1);
-	else if (!acpi_fadt.tmr_val_ext)
+	else if (!(acpi_fadt.flags & ACPI_FADT_32BIT_TIMER))
 		return (((0x00FFFFFF - t1) + t2) & 0x00FFFFFF);
 	else
 		return ((0xFFFFFFFF - t1) + t2);
@@ -236,7 +236,7 @@ static void acpi_cstate_enter(struct acpi_processor_cx *cstate)
 		/* Dummy wait op - must do something useless after P_LVL2 read
 		   because chipsets cannot guarantee that STPCLK# signal
 		   gets asserted in time to freeze execution properly. */
-		unused = inl(acpi_fadt.xpm_tmr_blk.address);
+		unused = inl(acpi_fadt.xpm_timer_block.address);
 	}
 }
 
@@ -338,7 +338,7 @@ static void acpi_processor_idle(void)
 	 * detection phase, to work cleanly with logical CPU hotplug.
 	 */
 	if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && 
-	    !pr->flags.has_cst && !acpi_fadt.plvl2_up)
+	    !pr->flags.has_cst && !(acpi_fadt.flags & ACPI_FADT_C2_MP_SUPPORTED))
 		cx = &pr->power.states[ACPI_STATE_C1];
 #endif
 
@@ -384,11 +384,11 @@ static void acpi_processor_idle(void)
 
 	case ACPI_STATE_C2:
 		/* Get start time (ticks) */
-		t1 = inl(acpi_fadt.xpm_tmr_blk.address);
+		t1 = inl(acpi_fadt.xpm_timer_block.address);
 		/* Invoke C2 */
 		acpi_cstate_enter(cx);
 		/* Get end time (ticks) */
-		t2 = inl(acpi_fadt.xpm_tmr_blk.address);
+		t2 = inl(acpi_fadt.xpm_timer_block.address);
 
 #ifdef CONFIG_GENERIC_TIME
 		/* TSC halts in C2, so notify users */
@@ -420,11 +420,11 @@ static void acpi_processor_idle(void)
 		}
 
 		/* Get start time (ticks) */
-		t1 = inl(acpi_fadt.xpm_tmr_blk.address);
+		t1 = inl(acpi_fadt.xpm_timer_block.address);
 		/* Invoke C3 */
 		acpi_cstate_enter(cx);
 		/* Get end time (ticks) */
-		t2 = inl(acpi_fadt.xpm_tmr_blk.address);
+		t2 = inl(acpi_fadt.xpm_timer_block.address);
 		if (pr->flags.bm_check) {
 			/* Enable bus master arbitration */
 			atomic_dec(&c3_cpu_count);
@@ -457,7 +457,7 @@ static void acpi_processor_idle(void)
 #ifdef CONFIG_HOTPLUG_CPU
 	/* Don't do promotion/demotion */
 	if ((cx->type == ACPI_STATE_C1) && (num_online_cpus() > 1) &&
-	    !pr->flags.has_cst && !acpi_fadt.plvl2_up) {
+	    !pr->flags.has_cst && !(acpi_fadt.flags & ACPI_FADT_C2_MP_SUPPORTED)) {
 		next_state = cx;
 		goto end;
 	}
@@ -627,7 +627,8 @@ static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
 	 * Check for P_LVL2_UP flag before entering C2 and above on
 	 * an SMP system. 
 	 */
-	if ((num_online_cpus() > 1) && !acpi_fadt.plvl2_up)
+	if ((num_online_cpus() > 1) &&
+	    !(acpi_fadt.flags & ACPI_FADT_C2_MP_SUPPORTED))
 		return -ENODEV;
 #endif
 
@@ -636,8 +637,8 @@ static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
 	pr->power.states[ACPI_STATE_C3].address = pr->pblk + 5;
 
 	/* determine latencies from FADT */
-	pr->power.states[ACPI_STATE_C2].latency = acpi_fadt.plvl2_lat;
-	pr->power.states[ACPI_STATE_C3].latency = acpi_fadt.plvl3_lat;
+	pr->power.states[ACPI_STATE_C2].latency = acpi_fadt.C2latency;
+	pr->power.states[ACPI_STATE_C3].latency = acpi_fadt.C3latency;
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 			  "lvl2[0x%08x] lvl3[0x%08x]\n",
@@ -883,7 +884,7 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr,
 		 * WBINVD should be set in fadt, for C3 state to be
 		 * supported on when bm_check is not required.
 		 */
-		if (acpi_fadt.wb_invd != 1) {
+		if (!(acpi_fadt.flags & ACPI_FADT_WBINVD)) {
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 					  "Cache invalidation should work properly"
 					  " for C3 to be enabled on SMP systems\n"));
@@ -1164,9 +1165,9 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 	if (!pr)
 		return -EINVAL;
 
-	if (acpi_fadt.cst_cnt && !nocst) {
+	if (acpi_fadt.cst_control && !nocst) {
 		status =
-		    acpi_os_write_port(acpi_fadt.smi_cmd, acpi_fadt.cst_cnt, 8);
+		    acpi_os_write_port(acpi_fadt.smi_command, acpi_fadt.cst_control, 8);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"Notifying BIOS of _CST ability failed"));
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index cbb6f0814ce..aabb98832ba 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -352,31 +352,24 @@ int acpi_processor_notify_smm(struct module *calling_module)
 
 	is_done = -EIO;
 
-	/* Can't write pstate_cnt to smi_cmd if either value is zero */
-	if ((!acpi_fadt.smi_cmd) || (!acpi_fadt.pstate_cnt)) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No SMI port or pstate_cnt\n"));
+	/* Can't write pstate_control to smi_command if either value is zero */
+	if ((!acpi_fadt.smi_command) || (!acpi_fadt.pstate_control)) {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No SMI port or pstate_control\n"));
 		module_put(calling_module);
 		return 0;
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "Writing pstate_cnt [0x%x] to smi_cmd [0x%x]\n",
-			  acpi_fadt.pstate_cnt, acpi_fadt.smi_cmd));
+			  "Writing pstate_control [0x%x] to smi_command [0x%x]\n",
+			  acpi_fadt.pstate_control, acpi_fadt.smi_command));
 
-	/* FADT v1 doesn't support pstate_cnt, many BIOS vendors use
-	 * it anyway, so we need to support it... */
-	if (acpi_fadt_is_v1) {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Using v1.0 FADT reserved value for pstate_cnt\n"));
-	}
-
-	status = acpi_os_write_port(acpi_fadt.smi_cmd,
-				    (u32) acpi_fadt.pstate_cnt, 8);
+	status = acpi_os_write_port(acpi_fadt.smi_command,
+				    (u32) acpi_fadt.pstate_control, 8);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
-				"Failed to write pstate_cnt [0x%x] to "
-				"smi_cmd [0x%x]", acpi_fadt.pstate_cnt,
-				acpi_fadt.smi_cmd));
+				"Failed to write pstate_control [0x%x] to "
+				"smi_command [0x%x]", acpi_fadt.pstate_control,
+				acpi_fadt.smi_command));
 		module_put(calling_module);
 		return status;
 	}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 283d87522c5..b1692b18c9d 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1333,7 +1333,7 @@ static int acpi_bus_scan_fixed(struct acpi_device *root)
 	/*
 	 * Enumerate all fixed-feature devices.
 	 */
-	if (acpi_fadt.pwr_button == 0) {
+	if ((acpi_fadt.flags & ACPI_FADT_POWER_BUTTON) == 0) {
 		result = acpi_add_single_object(&device, acpi_root,
 						NULL,
 						ACPI_BUS_TYPE_POWER_BUTTON);
@@ -1341,7 +1341,7 @@ static int acpi_bus_scan_fixed(struct acpi_device *root)
 			result = acpi_start_single_object(device);
 	}
 
-	if (acpi_fadt.sleep_button == 0) {
+	if ((acpi_fadt.flags & ACPI_FADT_SLEEP_BUTTON) == 0) {
 		result = acpi_add_single_object(&device, acpi_root,
 						NULL,
 						ACPI_BUS_TYPE_SLEEP_BUTTON);
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 34962578039..ccc11b33d89 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -73,7 +73,7 @@ acpi_system_write_sleep(struct file *file,
 static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
 {
 	u32 sec, min, hr;
-	u32 day, mo, yr;
+	u32 day, mo, yr, cent = 0;
 	unsigned char rtc_control = 0;
 	unsigned long flags;
 
@@ -87,20 +87,19 @@ static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
 	rtc_control = CMOS_READ(RTC_CONTROL);
 
 	/* If we ever get an FACP with proper values... */
-	if (acpi_gbl_FADT->day_alrm)
+	if (acpi_gbl_FADT.day_alarm)
 		/* ACPI spec: only low 6 its should be cared */
-		day = CMOS_READ(acpi_gbl_FADT->day_alrm) & 0x3F;
+		day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F;
 	else
 		day = CMOS_READ(RTC_DAY_OF_MONTH);
-	if (acpi_gbl_FADT->mon_alrm)
-		mo = CMOS_READ(acpi_gbl_FADT->mon_alrm);
+	if (acpi_gbl_FADT.month_alarm)
+		mo = CMOS_READ(acpi_gbl_FADT.month_alarm);
 	else
 		mo = CMOS_READ(RTC_MONTH);
-	if (acpi_gbl_FADT->century)
-		yr = CMOS_READ(acpi_gbl_FADT->century) * 100 +
-		    CMOS_READ(RTC_YEAR);
-	else
-		yr = CMOS_READ(RTC_YEAR);
+	if (acpi_gbl_FADT.century)
+		cent = CMOS_READ(acpi_gbl_FADT.century);
+
+	yr = CMOS_READ(RTC_YEAR);
 
 	spin_unlock_irqrestore(&rtc_lock, flags);
 
@@ -111,10 +110,11 @@ static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
 		BCD_TO_BIN(day);
 		BCD_TO_BIN(mo);
 		BCD_TO_BIN(yr);
+		BCD_TO_BIN(cent);
 	}
 
 	/* we're trusting the FADT (see above) */
-	if (!acpi_gbl_FADT->century)
+	if (!acpi_gbl_FADT.century)
 		/* If we're not trusting the FADT, we should at least make it
 		 * right for _this_ century... ehm, what is _this_ century?
 		 *
@@ -134,6 +134,8 @@ static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
 		 *
 		 */
 		yr += 2000;
+	else
+		yr += cent * 100;
 
 	seq_printf(seq, "%4.4u-", yr);
 	(mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
@@ -317,12 +319,12 @@ acpi_system_write_alarm(struct file *file,
 	 * offsets into the CMOS RAM here -- which for some reason are pointing
 	 * to the RTC area of memory.
 	 */
-	if (acpi_gbl_FADT->day_alrm)
-		CMOS_WRITE(day, acpi_gbl_FADT->day_alrm);
-	if (acpi_gbl_FADT->mon_alrm)
-		CMOS_WRITE(mo, acpi_gbl_FADT->mon_alrm);
-	if (acpi_gbl_FADT->century)
-		CMOS_WRITE(yr / 100, acpi_gbl_FADT->century);
+	if (acpi_gbl_FADT.day_alarm)
+		CMOS_WRITE(day, acpi_gbl_FADT.day_alarm);
+	if (acpi_gbl_FADT.month_alarm)
+		CMOS_WRITE(mo, acpi_gbl_FADT.month_alarm);
+	if (acpi_gbl_FADT.century)
+		CMOS_WRITE(yr / 100, acpi_gbl_FADT.century);
 	/* enable the rtc alarm interrupt */
 	rtc_control |= RTC_AIE;
 	CMOS_WRITE(rtc_control, RTC_CONTROL);
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index d86dcb3c236..2d425d84582 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -39,7 +39,6 @@ ACPI_MODULE_NAME("acpi_system")
 #define ACPI_SYSTEM_FILE_EVENT		"event"
 #define ACPI_SYSTEM_FILE_DSDT		"dsdt"
 #define ACPI_SYSTEM_FILE_FADT		"fadt"
-extern struct fadt_descriptor acpi_fadt;
 
 /* --------------------------------------------------------------------------
                               FS Interface (/proc)
@@ -76,17 +75,16 @@ acpi_system_read_dsdt(struct file *file,
 		      char __user * buffer, size_t count, loff_t * ppos)
 {
 	acpi_status status = AE_OK;
-	struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
+	struct acpi_table_header *dsdt = NULL;
 	ssize_t res;
 
 
-	status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
+	status = acpi_get_table(ACPI_SIG_DSDT, 1, &dsdt);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
 	res = simple_read_from_buffer(buffer, count, ppos,
-				      dsdt.pointer, dsdt.length);
-	kfree(dsdt.pointer);
+				      dsdt, dsdt->length);
 
 	return res;
 }
@@ -103,17 +101,16 @@ acpi_system_read_fadt(struct file *file,
 		      char __user * buffer, size_t count, loff_t * ppos)
 {
 	acpi_status status = AE_OK;
-	struct acpi_buffer fadt = { ACPI_ALLOCATE_BUFFER, NULL };
+	struct acpi_table_header *fadt = NULL;
 	ssize_t res;
 
 
-	status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &fadt);
+	status = acpi_get_table(ACPI_SIG_FADT, 1, &fadt);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
 	res = simple_read_from_buffer(buffer, count, ppos,
-				      fadt.pointer, fadt.length);
-	kfree(fadt.pointer);
+				      fadt, fadt->length);
 
 	return res;
 }
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index ffa30c9fccb..5bb14315116 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -74,6 +74,7 @@ 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)
 {
@@ -284,12 +285,12 @@ acpi_get_table_header_early(enum acpi_table_id id,
 		struct fadt_descriptor *fadt =
 		    (struct fadt_descriptor *)*header;
 
-		if (fadt->revision == 3 && fadt->Xdsdt) {
+		if (fadt->header.revision == 3 && fadt->Xdsdt) {
 			*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,
+		} else if (fadt->dsdt) {
+			*header = (void *)__acpi_map_table(fadt->dsdt,
 							   sizeof(struct
 								  acpi_table_header));
 		} else
@@ -410,12 +411,11 @@ static int __init acpi_table_get_sdt(struct acpi_table_rsdp *rsdp)
 
 	/* First check XSDT (but only on ACPI 2.0-compatible systems) */
 
-	if ((rsdp->revision >= 2) &&
-	    (((struct acpi20_table_rsdp *)rsdp)->xsdt_address)) {
+	if ((rsdp->revision >= 2) && rsdp->xsdt_physical_address) {
 
 		struct acpi_table_xsdt *mapped_xsdt = NULL;
 
-		sdt_pa = ((struct acpi20_table_rsdp *)rsdp)->xsdt_address;
+		sdt_pa = rsdp->xsdt_physical_address;
 
 		/* map in just the header */
 		header = (struct acpi_table_header *)
@@ -457,16 +457,16 @@ static int __init acpi_table_get_sdt(struct acpi_table_rsdp *rsdp)
 		}
 
 		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->table_offset_entry[i];
 	}
 
 	/* Then check RSDT */
 
-	else if (rsdp->rsdt_address) {
+	else if (rsdp->rsdt_physical_address) {
 
 		struct acpi_table_rsdt *mapped_rsdt = NULL;
 
-		sdt_pa = rsdp->rsdt_address;
+		sdt_pa = rsdp->rsdt_physical_address;
 
 		/* map in just the header */
 		header = (struct acpi_table_header *)
@@ -507,7 +507,7 @@ static int __init acpi_table_get_sdt(struct acpi_table_rsdp *rsdp)
 		}
 
 		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->table_offset_entry[i];
 	}
 
 	else {
@@ -599,13 +599,10 @@ int __init acpi_table_init(void)
 
 	if (rsdp->revision < 2)
 		result =
-		    acpi_table_compute_checksum(rsdp,
-						sizeof(struct acpi_table_rsdp));
+		    acpi_table_compute_checksum(rsdp, ACPI_RSDP_REV0_SIZE);
 	else
 		result =
-		    acpi_table_compute_checksum(rsdp,
-						((struct acpi20_table_rsdp *)
-						 rsdp)->length);
+		    acpi_table_compute_checksum(rsdp, rsdp->length);
 
 	if (result) {
 		printk(KERN_WARNING "  >>> ERROR: Invalid checksum\n");
@@ -617,5 +614,7 @@ int __init acpi_table_init(void)
 	if (acpi_table_get_sdt(rsdp))
 		return -ENODEV;
 
+	acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0);
+
 	return 0;
 }
diff --git a/drivers/acpi/tables/Makefile b/drivers/acpi/tables/Makefile
index aa4c69594d9..f08f1f31027 100644
--- a/drivers/acpi/tables/Makefile
+++ b/drivers/acpi/tables/Makefile
@@ -2,7 +2,6 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-y := tbconvrt.o  tbget.o     tbrsdt.o   tbxface.o  \
-	 tbgetall.o  tbinstal.o  tbutils.o  tbxfroot.o
+obj-y := tbxface.o tbinstal.o  tbutils.o tbfind.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index 8e44f83a64e..6d13737f3f8 100644
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -545,7 +545,7 @@ acpi_tb_get_root_table_entry(u8 * table_entry,
  *
  ******************************************************************************/
 
-acpi_status
+acpi_status __init
 acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
 {
 	struct acpi_table_rsdp *rsdp;
diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index 13e8d6626dd..94544a60640 100644
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -78,7 +78,7 @@ static acpi_status acpi_tb_load_namespace(void);
  *
  ******************************************************************************/
 
-acpi_status
+acpi_status __init
 acpi_initialize_tables(struct acpi_table_desc *initial_table_array,
 		       u32 initial_table_count, u8 allow_resize)
 {
@@ -132,8 +132,6 @@ acpi_initialize_tables(struct acpi_table_desc *initial_table_array,
 	return_ACPI_STATUS(status);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_initialize_tables)
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_reallocate_root_table
@@ -365,6 +363,10 @@ acpi_get_table(char *signature,
 			*out_table = acpi_gbl_root_table_list.tables[i].pointer;
 		}
 
+		if (!acpi_gbl_permanent_mmap) {
+			acpi_gbl_root_table_list.tables[i].pointer = 0;
+		}
+
 		return (status);
 	}