src/mainboard/amd/serengeti_cheetah_fam10/acpi_tables.c - coreboot - Gitiles

 /*
  * This file is part of the coreboot project.
  *
  * Copyright (C) 2007 Advanced Micro Devices, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2 of the License.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */

 #include <console/console.h>
 #include <string.h>
 #include <arch/acpi.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
 #include <cpu/x86/msr.h>
 #include <cpu/amd/mtrr.h>
 #include <cpu/amd/amdfam10_sysconf.h>

 #include "mb_sysconf.h"

 #define DUMP_ACPI_TABLES 0

 #if DUMP_ACPI_TABLES == 1
 static void dump_mem(u32 start, u32 end)
 {

 	u32 i;
 	print_debug("dump_mem:");
 	for(i=start;i<end;i++) {
 		if((i & 0xf)==0) {
 			printk_debug("\n%08x:", i);
 		}
 		printk_debug(" %02x", (unsigned char)*((unsigned char *)i));
 	}
 	print_debug("\n");
  }
 #endif

 extern u8 AmlCode[];
 extern u8 AmlCode_ssdt[];

 #if ACPI_SSDTX_NUM >= 1
 extern u8 AmlCode_ssdt2[];
 extern u8 AmlCode_ssdt3[];
 extern u8 AmlCode_ssdt4[];
 extern u8 AmlCode_ssdt5[];
 #endif

 #define IO_APIC_ADDR	0xfec00000UL

 unsigned long acpi_fill_mcfg(unsigned long current)
 {
 	/* Just a dummy */
 	return current;
 }

 unsigned long acpi_fill_madt(unsigned long current)
 {
 	u32 gsi_base=0x18;

 	struct mb_sysconf_t *m;

 	m = sysconf.mb;

 	/* create all subtables for processors */
 	current = acpi_create_madt_lapics(current);

 	/* Write 8111 IOAPIC */
 	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8111,
 			IO_APIC_ADDR, 0);

 	/* Write all 8131 IOAPICs */
 	{
 		device_t dev;
 		struct resource *res;
 		dev = dev_find_slot(m->bus_8132_0, PCI_DEVFN((sysconf.hcdn[0]&0xff), 1));
 		if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
 				current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8132_1,
 					res->base, gsi_base );
 				gsi_base+=7;

 			}
 		}
 		dev = dev_find_slot(m->bus_8132_0, PCI_DEVFN((sysconf.hcdn[0] & 0xff)+1, 1));
 		if (dev) {
 			res = find_resource(dev, PCI_BASE_ADDRESS_0);
 			if (res) {
 				current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8132_2,
 					res->base, gsi_base );
 				gsi_base+=7;
 			}
 		}

 		int i;
 		int j = 0;

 		for(i=1; i< sysconf.hc_possible_num; i++) {
 			u32 d = 0;

 			if(!(sysconf.pci1234[i] & 0x1) ) continue;
 			// 8131 need to use +4
 			switch (sysconf.hcid[i]) {
 			case 1:
 				d = 7;
 				break;
 			case 3:
 				d = 4;
 				break;
 			}
 			switch (sysconf.hcid[i]) {
 			case 1:
 			case 3:
 				dev = dev_find_slot(m->bus_8132a[j][0], PCI_DEVFN(m->sbdn3a[j], 1));
 				if (dev) {
 					res = find_resource(dev, PCI_BASE_ADDRESS_0);
 					if (res) {
 						current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8132a[j][0],
 							res->base, gsi_base );
 						gsi_base+=d;
 					}
 				}
 				dev = dev_find_slot(m->bus_8132a[j][0], PCI_DEVFN(m->sbdn3a[j]+1, 1));
 				if (dev) {
 					res = find_resource(dev, PCI_BASE_ADDRESS_0);
 					if (res) {
 						current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8132a[j][1],
 							res->base, gsi_base );
 						gsi_base+=d;

 					}
 				}
 				break;
 			}
 			j++;
 		}
 	}

 	current += acpi_create_madt_irqoverride( (acpi_madt_irqoverride_t *) current, 0, 0, 2, 5 );
 		/* 0: mean bus 0--->ISA */
 		/* 0: PIC 0 */
 		/* 2: APIC 2 */
 		/* 5 mean: 0101 --> Edige-triggered, Active high*/


 		/* create all subtables for processors */
 	current = acpi_create_madt_lapic_nmis(current, 5, 1);
 		/* 1: LINT1 connect to NMI */

 	return current;
 }

 extern void get_bus_conf(void);
 extern void update_ssdt(void *ssdt);


 void update_ssdtx(void *ssdtx, int i)
 {
 	u8 *PCI;
 	u8 *HCIN;
 	u8 *UID;

 	PCI = ssdtx + 0x32;
 	HCIN = ssdtx + 0x39;
 	UID = ssdtx + 0x40;

 	if(i<7) {
 		*PCI  = (u8) ('4' + i - 1);
 	}
 	else {
 		*PCI  = (u8) ('A' + i - 1 - 6);
 	}
 	*HCIN = (u8) i;
 	*UID  = (u8) (i+3);

 	/* FIXME: need to update the GSI id in the ssdtx too */

 }

 unsigned long write_acpi_tables(unsigned long start)
 {
 	unsigned long current;
 	acpi_rsdp_t *rsdp;
 	acpi_rsdt_t *rsdt;
 	acpi_hpet_t *hpet;
 	acpi_madt_t *madt;
 	acpi_srat_t *srat;
 	acpi_slit_t *slit;
 	acpi_fadt_t *fadt;
 	acpi_facs_t *facs;
 	acpi_header_t *dsdt;
 	acpi_header_t *ssdt;
 	acpi_header_t *ssdtx;
 	u8 *p;

 	int i;

 	get_bus_conf(); //it will get sblk, pci1234, hcdn, and sbdn

 	/* Align ACPI tables to 16 bytes */
 	start	= ( start + 0x0f) & -0x10;
 	current = start;

 	printk_info("ACPI: Writing ACPI tables at %lx...\n", start);

 	/* We need at least an RSDP and an RSDT Table */
 	rsdp = (acpi_rsdp_t *) current;
 	current += sizeof(acpi_rsdp_t);
 	rsdt = (acpi_rsdt_t *) current;
 	current += sizeof(acpi_rsdt_t);

 	/* clear all table memory */
 	memset((void *)start, 0, current - start);

 	acpi_write_rsdp(rsdp, rsdt);
 	acpi_write_rsdt(rsdt);

 	/*
 	 * We explicitly add these tables later on:
 	 */
 	current	  = ( current + 0x07) & -0x08;
 	printk_debug("ACPI:    * HPET at %lx\n", current);
 	hpet = (acpi_hpet_t *) current;
 	current += sizeof(acpi_hpet_t);
 	acpi_create_hpet(hpet);
 	acpi_add_table(rsdt,hpet);

 	/* If we want to use HPET Timers Linux wants an MADT */
 	current	  = ( current + 0x07) & -0x08;
 	printk_debug("ACPI:    * MADT at %lx\n",current);
 	madt = (acpi_madt_t *) current;
 	acpi_create_madt(madt);
 	current+=madt->header.length;
 	acpi_add_table(rsdt,madt);

 	/* SRAT */
 	current	  = ( current + 0x07) & -0x08;
 	printk_debug("ACPI:    * SRAT at %lx\n", current);
 	srat = (acpi_srat_t *) current;
 	acpi_create_srat(srat);
 	current+=srat->header.length;
 	acpi_add_table(rsdt,srat);

 	/* SLIT */
 	current	  = ( current + 0x07) & -0x08;
 	printk_debug("ACPI:   * SLIT at %lx\n", current);
 	slit = (acpi_slit_t *) current;
 	acpi_create_slit(slit);
 	current+=slit->header.length;
 	acpi_add_table(rsdt,slit);

 	/* SSDT */
 	current	  = ( current + 0x0f) & -0x10;
 	printk_debug("ACPI:    * SSDT at %lx\n", current);
 	ssdt = (acpi_header_t *)current;
 	current += ((acpi_header_t *)AmlCode_ssdt)->length;
 	memcpy((void *)ssdt, (void *)AmlCode_ssdt, ((acpi_header_t *)AmlCode_ssdt)->length);
 	//Here you need to set value in pci1234, sblk and sbdn in get_bus_conf.c
 	update_ssdt((void*)ssdt);
 	/* recalculate checksum */
 	ssdt->checksum = 0;
 	ssdt->checksum = acpi_checksum((unsigned char *)ssdt,ssdt->length);
 	acpi_add_table(rsdt,ssdt);

 	printk_debug("ACPI:    * SSDT for PState at %lx\n", current);
 	current = acpi_add_ssdt_pstates(rsdt, current);

 #if ACPI_SSDTX_NUM >= 1

 	/* same htio, but different possition? We may have to copy,
 	change HCIN, and recalculate the checknum and add_table */

 	for(i=1;i<sysconf.hc_possible_num;i++) {  // 0: is hc sblink
 		if((sysconf.pci1234[i] & 1) != 1 ) continue;
 		u8 c;
 		if(i<7) {
 			c  = (u8) ('4' + i - 1);
 		}
 		else {
 			c  = (u8) ('A' + i - 1 - 6);
 		}
 		current	  = ( current + 0x07) & -0x08;
 		printk_debug("ACPI:    * SSDT for PCI%c at %lx\n", c, current); //pci0 and pci1 are in dsdt
 		ssdtx = (acpi_header_t *)current;
 		switch(sysconf.hcid[i]) {
 		case 1:
 			p = AmlCode_ssdt2;
 			break;
 		case 2:
 			p = AmlCode_ssdt3;
 			break;
 		case 3: //8131
 			 p = AmlCode_ssdt4;
 			 break;
 		 default:
 			//HTX no io apic
 			 p = AmlCode_ssdt5;
 		}
 		current += ((acpi_header_t *)p)->length;
 		memcpy((void *)ssdtx, (void *)p, ((acpi_header_t *)p)->length);
 		update_ssdtx((void *)ssdtx, i);
 		ssdtx->checksum = 0;
 		ssdtx->checksum = acpi_checksum((unsigned char *)ssdtx,ssdtx->length);
 		acpi_add_table(rsdt,ssdtx);
 	}
 #endif

 	/* DSDT */
 	current	  = ( current + 0x07) & -0x08;
 	printk_debug("ACPI:    * DSDT at %lx\n", current);
 	dsdt = (acpi_header_t *)current; // it will used by fadt
 	current += ((acpi_header_t *)AmlCode)->length;
 	memcpy((void *)dsdt,(void *)AmlCode, \
 			((acpi_header_t *)AmlCode)->length);
 	printk_debug("ACPI:    * DSDT @ %08x Length %x\n",dsdt,dsdt->length);

 	/* FACS */ // it needs 64 bit alignment
 	current	  = ( current + 0x07) & -0x08;
 	printk_debug("ACPI:	* FACS at %lx\n", current);
 	facs = (acpi_facs_t *) current; // it will be used by fadt
 	current += sizeof(acpi_facs_t);
 	acpi_create_facs(facs);

 	/* FDAT */
 	current	  = ( current + 0x07) & -0x08;
 	printk_debug("ACPI:    * FADT at %lx\n", current);
 	fadt = (acpi_fadt_t *) current;
 	current += sizeof(acpi_fadt_t);

 	acpi_create_fadt(fadt,facs,dsdt);
 	acpi_add_table(rsdt,fadt);

 #if DUMP_ACPI_TABLES == 1
 	printk_debug("rsdp\n");
 	dump_mem(rsdp, ((void *)rsdp) + sizeof(acpi_rsdp_t));

 	printk_debug("rsdt\n");
 	dump_mem(rsdt, ((void *)rsdt) + sizeof(acpi_rsdt_t));

 	printk_debug("madt\n");
 	dump_mem(madt, ((void *)madt) + madt->header.length);

 	printk_debug("srat\n");
 	dump_mem(srat, ((void *)srat) + srat->header.length);

 	printk_debug("slit\n");
 	dump_mem(slit, ((void *)slit) + slit->header.length);

 	printk_debug("ssdt\n");
 	dump_mem(ssdt, ((void *)ssdt) + ssdt->length);

 	printk_debug("fadt\n");
 	dump_mem(fadt, ((void *)fadt) + fadt->header.length);
 #endif

 	printk_info("ACPI: done.\n");
 	return current;
 }
	/*
	* This file is part of the coreboot project.
	*
	* Copyright (C) 2007 Advanced Micro Devices, Inc.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; version 2 of the License.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	*/

	#include <console/console.h>
	#include <string.h>
	#include <arch/acpi.h>
	#include <device/pci.h>
	#include <device/pci_ids.h>
	#include <cpu/x86/msr.h>
	#include <cpu/amd/mtrr.h>
	#include <cpu/amd/amdfam10_sysconf.h>

	#include "mb_sysconf.h"

	#define DUMP_ACPI_TABLES 0

	#if DUMP_ACPI_TABLES == 1
	static void dump_mem(u32 start, u32 end)
	{

	u32 i;
	print_debug("dump_mem:");
	for(i=start;i<end;i++) {
	if((i & 0xf)==0) {
	printk_debug("\n%08x:", i);
	}
	printk_debug(" %02x", (unsigned char)((unsigned char )i));
	}
	print_debug("\n");
	}
	#endif

	extern u8 AmlCode[];
	extern u8 AmlCode_ssdt[];

	#if ACPI_SSDTX_NUM >= 1
	extern u8 AmlCode_ssdt2[];
	extern u8 AmlCode_ssdt3[];
	extern u8 AmlCode_ssdt4[];
	extern u8 AmlCode_ssdt5[];
	#endif

	#define IO_APIC_ADDR 0xfec00000UL

	unsigned long acpi_fill_mcfg(unsigned long current)
	{
	/* Just a dummy */
	return current;
	}

	unsigned long acpi_fill_madt(unsigned long current)
	{
	u32 gsi_base=0x18;

	struct mb_sysconf_t *m;

	m = sysconf.mb;

	/* create all subtables for processors */
	current = acpi_create_madt_lapics(current);

	/* Write 8111 IOAPIC */
	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8111,
	IO_APIC_ADDR, 0);

	/* Write all 8131 IOAPICs */
	{
	device_t dev;
	struct resource *res;
	dev = dev_find_slot(m->bus_8132_0, PCI_DEVFN((sysconf.hcdn[0]&0xff), 1));
	if (dev) {
	res = find_resource(dev, PCI_BASE_ADDRESS_0);
	if (res) {
	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8132_1,
	res->base, gsi_base );
	gsi_base+=7;

	}
	}
	dev = dev_find_slot(m->bus_8132_0, PCI_DEVFN((sysconf.hcdn[0] & 0xff)+1, 1));
	if (dev) {
	res = find_resource(dev, PCI_BASE_ADDRESS_0);
	if (res) {
	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8132_2,
	res->base, gsi_base );
	gsi_base+=7;
	}
	}

	int i;
	int j = 0;

	for(i=1; i< sysconf.hc_possible_num; i++) {
	u32 d = 0;

	if(!(sysconf.pci1234[i] & 0x1) ) continue;
	// 8131 need to use +4
	switch (sysconf.hcid[i]) {
	case 1:
	d = 7;
	break;
	case 3:
	d = 4;
	break;
	}
	switch (sysconf.hcid[i]) {
	case 1:
	case 3:
	dev = dev_find_slot(m->bus_8132a[j][0], PCI_DEVFN(m->sbdn3a[j], 1));
	if (dev) {
	res = find_resource(dev, PCI_BASE_ADDRESS_0);
	if (res) {
	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8132a[j][0],
	res->base, gsi_base );
	gsi_base+=d;
	}
	}
	dev = dev_find_slot(m->bus_8132a[j][0], PCI_DEVFN(m->sbdn3a[j]+1, 1));
	if (dev) {
	res = find_resource(dev, PCI_BASE_ADDRESS_0);
	if (res) {
	current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, m->apicid_8132a[j][1],
	res->base, gsi_base );
	gsi_base+=d;

	}
	}
	break;
	}
	j++;
	}
	}

	current += acpi_create_madt_irqoverride( (acpi_madt_irqoverride_t *) current, 0, 0, 2, 5 );
	/* 0: mean bus 0--->ISA */
	/* 0: PIC 0 */
	/* 2: APIC 2 */
	/* 5 mean: 0101 --> Edige-triggered, Active high*/


	/* create all subtables for processors */
	current = acpi_create_madt_lapic_nmis(current, 5, 1);
	/* 1: LINT1 connect to NMI */

	return current;
	}

	extern void get_bus_conf(void);
	extern void update_ssdt(void *ssdt);


	void update_ssdtx(void *ssdtx, int i)
	{
	u8 *PCI;
	u8 *HCIN;
	u8 *UID;

	PCI = ssdtx + 0x32;
	HCIN = ssdtx + 0x39;
	UID = ssdtx + 0x40;

	if(i<7) {
	*PCI = (u8) ('4' + i - 1);
	}
	else {
	*PCI = (u8) ('A' + i - 1 - 6);
	}
	*HCIN = (u8) i;
	*UID = (u8) (i+3);

	/* FIXME: need to update the GSI id in the ssdtx too */

	}

	unsigned long write_acpi_tables(unsigned long start)
	{
	unsigned long current;
	acpi_rsdp_t *rsdp;
	acpi_rsdt_t *rsdt;
	acpi_hpet_t *hpet;
	acpi_madt_t *madt;
	acpi_srat_t *srat;
	acpi_slit_t *slit;
	acpi_fadt_t *fadt;
	acpi_facs_t *facs;
	acpi_header_t *dsdt;
	acpi_header_t *ssdt;
	acpi_header_t *ssdtx;
	u8 *p;

	int i;

	get_bus_conf(); //it will get sblk, pci1234, hcdn, and sbdn

	/* Align ACPI tables to 16 bytes */
	start = ( start + 0x0f) & -0x10;
	current = start;

	printk_info("ACPI: Writing ACPI tables at %lx...\n", start);

	/* We need at least an RSDP and an RSDT Table */
	rsdp = (acpi_rsdp_t *) current;
	current += sizeof(acpi_rsdp_t);
	rsdt = (acpi_rsdt_t *) current;
	current += sizeof(acpi_rsdt_t);

	/* clear all table memory */
	memset((void *)start, 0, current - start);

	acpi_write_rsdp(rsdp, rsdt);
	acpi_write_rsdt(rsdt);

	/*
	* We explicitly add these tables later on:
	*/
	current = ( current + 0x07) & -0x08;
	printk_debug("ACPI: * HPET at %lx\n", current);
	hpet = (acpi_hpet_t *) current;
	current += sizeof(acpi_hpet_t);
	acpi_create_hpet(hpet);
	acpi_add_table(rsdt,hpet);

	/* If we want to use HPET Timers Linux wants an MADT */
	current = ( current + 0x07) & -0x08;
	printk_debug("ACPI: * MADT at %lx\n",current);
	madt = (acpi_madt_t *) current;
	acpi_create_madt(madt);
	current+=madt->header.length;
	acpi_add_table(rsdt,madt);

	/* SRAT */
	current = ( current + 0x07) & -0x08;
	printk_debug("ACPI: * SRAT at %lx\n", current);
	srat = (acpi_srat_t *) current;
	acpi_create_srat(srat);
	current+=srat->header.length;
	acpi_add_table(rsdt,srat);

	/* SLIT */
	current = ( current + 0x07) & -0x08;
	printk_debug("ACPI: * SLIT at %lx\n", current);
	slit = (acpi_slit_t *) current;
	acpi_create_slit(slit);
	current+=slit->header.length;
	acpi_add_table(rsdt,slit);

	/* SSDT */
	current = ( current + 0x0f) & -0x10;
	printk_debug("ACPI: * SSDT at %lx\n", current);
	ssdt = (acpi_header_t *)current;
	current += ((acpi_header_t *)AmlCode_ssdt)->length;
	memcpy((void )ssdt, (void )AmlCode_ssdt, ((acpi_header_t *)AmlCode_ssdt)->length);
	//Here you need to set value in pci1234, sblk and sbdn in get_bus_conf.c
	update_ssdt((void*)ssdt);
	/* recalculate checksum */
	ssdt->checksum = 0;
	ssdt->checksum = acpi_checksum((unsigned char *)ssdt,ssdt->length);
	acpi_add_table(rsdt,ssdt);

	printk_debug("ACPI: * SSDT for PState at %lx\n", current);
	current = acpi_add_ssdt_pstates(rsdt, current);

	#if ACPI_SSDTX_NUM >= 1

	/* same htio, but different possition? We may have to copy,
	change HCIN, and recalculate the checknum and add_table */

	for(i=1;i<sysconf.hc_possible_num;i++) { // 0: is hc sblink
	if((sysconf.pci1234[i] & 1) != 1 ) continue;
	u8 c;
	if(i<7) {
	c = (u8) ('4' + i - 1);
	}
	else {
	c = (u8) ('A' + i - 1 - 6);
	}
	current = ( current + 0x07) & -0x08;
	printk_debug("ACPI: * SSDT for PCI%c at %lx\n", c, current); //pci0 and pci1 are in dsdt
	ssdtx = (acpi_header_t *)current;
	switch(sysconf.hcid[i]) {
	case 1:
	p = AmlCode_ssdt2;
	break;
	case 2:
	p = AmlCode_ssdt3;
	break;
	case 3: //8131
	p = AmlCode_ssdt4;
	break;
	default:
	//HTX no io apic
	p = AmlCode_ssdt5;
	}
	current += ((acpi_header_t *)p)->length;
	memcpy((void )ssdtx, (void )p, ((acpi_header_t *)p)->length);
	update_ssdtx((void *)ssdtx, i);
	ssdtx->checksum = 0;
	ssdtx->checksum = acpi_checksum((unsigned char *)ssdtx,ssdtx->length);
	acpi_add_table(rsdt,ssdtx);
	}
	#endif

	/* DSDT */
	current = ( current + 0x07) & -0x08;
	printk_debug("ACPI: * DSDT at %lx\n", current);
	dsdt = (acpi_header_t *)current; // it will used by fadt
	current += ((acpi_header_t *)AmlCode)->length;
	memcpy((void )dsdt,(void )AmlCode, \
	((acpi_header_t *)AmlCode)->length);
	printk_debug("ACPI: * DSDT @ %08x Length %x\n",dsdt,dsdt->length);

	/* FACS */ // it needs 64 bit alignment
	current = ( current + 0x07) & -0x08;
	printk_debug("ACPI: * FACS at %lx\n", current);
	facs = (acpi_facs_t *) current; // it will be used by fadt
	current += sizeof(acpi_facs_t);
	acpi_create_facs(facs);

	/* FDAT */
	current = ( current + 0x07) & -0x08;
	printk_debug("ACPI: * FADT at %lx\n", current);
	fadt = (acpi_fadt_t *) current;
	current += sizeof(acpi_fadt_t);

	acpi_create_fadt(fadt,facs,dsdt);
	acpi_add_table(rsdt,fadt);

	#if DUMP_ACPI_TABLES == 1
	printk_debug("rsdp\n");
	dump_mem(rsdp, ((void *)rsdp) + sizeof(acpi_rsdp_t));

	printk_debug("rsdt\n");
	dump_mem(rsdt, ((void *)rsdt) + sizeof(acpi_rsdt_t));

	printk_debug("madt\n");
	dump_mem(madt, ((void *)madt) + madt->header.length);

	printk_debug("srat\n");
	dump_mem(srat, ((void *)srat) + srat->header.length);

	printk_debug("slit\n");
	dump_mem(slit, ((void *)slit) + slit->header.length);

	printk_debug("ssdt\n");
	dump_mem(ssdt, ((void *)ssdt) + ssdt->length);

	printk_debug("fadt\n");
	dump_mem(fadt, ((void *)fadt) + fadt->header.length);
	#endif

	printk_info("ACPI: done.\n");
	return current;
	}