arch/i386/kernel/dmi_scan.c - third_party/linux - Git at Google

 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
 #include <asm/io.h>
 #include <linux/pm.h>
 #include <asm/system.h>
 #include <linux/dmi.h>
 #include <linux/bootmem.h>


 struct dmi_header
 {
 	u8	type;
 	u8	length;
 	u16	handle;
 };

 #undef DMI_DEBUG

 #ifdef DMI_DEBUG
 #define dmi_printk(x) printk x
 #else
 #define dmi_printk(x)
 #endif

 static char * __init dmi_string(struct dmi_header *dm, u8 s)
 {
 	u8 *bp=(u8 *)dm;
 	bp+=dm->length;
 	if(!s)
 		return "";
 	s--;
 	while(s>0 && *bp)
 	{
 		bp+=strlen(bp);
 		bp++;
 		s--;
 	}
 	return bp;
 }

 /*
  *	We have to be cautious here. We have seen BIOSes with DMI pointers
  *	pointing to completely the wrong place for example
  */

 static int __init dmi_table(u32 base, int len, int num, void (*decode)(struct dmi_header *))
 {
 	u8 *buf;
 	struct dmi_header *dm;
 	u8 *data;
 	int i=0;

 	buf = bt_ioremap(base, len);
 	if(buf==NULL)
 		return -1;

 	data = buf;

 	/*
  	 *	Stop when we see all the items the table claimed to have
  	 *	OR we run off the end of the table (also happens)
  	 */

 	while(i<num && data-buf+sizeof(struct dmi_header)<=len)
 	{
 		dm=(struct dmi_header *)data;
 		/*
 		 *  We want to know the total length (formated area and strings)
 		 *  before decoding to make sure we won't run off the table in
 		 *  dmi_decode or dmi_string
 		 */
 		data+=dm->length;
 		while(data-buf<len-1 && (data[0] || data[1]))
 			data++;
 		if(data-buf<len-1)
 			decode(dm);
 		data+=2;
 		i++;
 	}
 	bt_iounmap(buf, len);
 	return 0;
 }


 inline static int __init dmi_checksum(u8 *buf)
 {
 	u8 sum=0;
 	int a;

 	for(a=0; a<15; a++)
 		sum+=buf[a];
 	return (sum==0);
 }

 static int __init dmi_iterate(void (*decode)(struct dmi_header *))
 {
 	u8 buf[15];
 	char __iomem *p, *q;

 	/*
 	 * no iounmap() for that ioremap(); it would be a no-op, but it's
 	 * so early in setup that sucker gets confused into doing what
 	 * it shouldn't if we actually call it.
 	 */
 	p = ioremap(0xF0000, 0x10000);
 	if (p == NULL)
 		return -1;
 	for (q = p; q < p + 0x10000; q += 16) {
 		memcpy_fromio(buf, q, 15);
 		if(memcmp(buf, "_DMI_", 5)==0 && dmi_checksum(buf))
 		{
 			u16 num=buf[13]<<8|buf[12];
 			u16 len=buf[7]<<8|buf[6];
 			u32 base=buf[11]<<24|buf[10]<<16|buf[9]<<8|buf[8];

 			/*
 			 * DMI version 0.0 means that the real version is taken from
 			 * the SMBIOS version, which we don't know at this point.
 			 */
 			if(buf[14]!=0)
 				printk(KERN_INFO "DMI %d.%d present.\n",
 					buf[14]>>4, buf[14]&0x0F);
 			else
 				printk(KERN_INFO "DMI present.\n");
 			dmi_printk((KERN_INFO "%d structures occupying %d bytes.\n",
 				num, len));
 			dmi_printk((KERN_INFO "DMI table at 0x%08X.\n",
 				base));
 			if(dmi_table(base,len, num, decode)==0)
 				return 0;
 		}
 	}
 	return -1;
 }

 static char *dmi_ident[DMI_STRING_MAX];

 /*
  *	Save a DMI string
  */

 static void __init dmi_save_ident(struct dmi_header *dm, int slot, int string)
 {
 	char *d = (char*)dm;
 	char *p = dmi_string(dm, d[string]);
 	if(p==NULL || *p == 0)
 		return;
 	if (dmi_ident[slot])
 		return;
 	dmi_ident[slot] = alloc_bootmem(strlen(p)+1);
 	if(dmi_ident[slot])
 		strcpy(dmi_ident[slot], p);
 	else
 		printk(KERN_ERR "dmi_save_ident: out of memory.\n");
 }

 /*
  * Ugly compatibility crap.
  */
 #define dmi_blacklist	dmi_system_id
 #define NO_MATCH	{ DMI_NONE, NULL}
 #define MATCH		DMI_MATCH

 /*
  * Toshiba keyboard likes to repeat keys when they are not repeated.
  */

 static __init int broken_toshiba_keyboard(struct dmi_blacklist *d)
 {
 	printk(KERN_WARNING "Toshiba with broken keyboard detected. If your keyboard sometimes generates 3 keypresses instead of one, see http://davyd.ucc.asn.au/projects/toshiba/README\n");
 	return 0;
 }


 #ifdef CONFIG_ACPI_SLEEP
 static __init int reset_videomode_after_s3(struct dmi_blacklist *d)
 {
 	/* See acpi_wakeup.S */
 	extern long acpi_video_flags;
 	acpi_video_flags |= 2;
 	return 0;
 }
 #endif


 #ifdef	CONFIG_ACPI_BOOT
 extern int acpi_force;

 static __init __attribute__((unused)) int dmi_disable_acpi(struct dmi_blacklist *d)
 {
 	if (!acpi_force) {
 		printk(KERN_NOTICE "%s detected: acpi off\n",d->ident);
 		disable_acpi();
 	} else {
 		printk(KERN_NOTICE
 		       "Warning: DMI blacklist says broken, but acpi forced\n");
 	}
 	return 0;
 }

 /*
  * Limit ACPI to CPU enumeration for HT
  */
 static __init __attribute__((unused)) int force_acpi_ht(struct dmi_blacklist *d)
 {
 	if (!acpi_force) {
 		printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", d->ident);
 		disable_acpi();
 		acpi_ht = 1;
 	} else {
 		printk(KERN_NOTICE
 		       "Warning: acpi=force overrules DMI blacklist: acpi=ht\n");
 	}
 	return 0;
 }
 #endif

 #ifdef	CONFIG_ACPI_PCI
 static __init int disable_acpi_irq(struct dmi_blacklist *d)
 {
 	if (!acpi_force) {
 		printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n",
 		       d->ident);
 		acpi_noirq_set();
 	}
 	return 0;
 }
 static __init int disable_acpi_pci(struct dmi_blacklist *d)
 {
 	if (!acpi_force) {
 		printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n",
 		       d->ident);
 		acpi_disable_pci();
 	}
 	return 0;
 }
 #endif

 /*
  *	Process the DMI blacklists
  */


 /*
  *	This will be expanded over time to force things like the APM
  *	interrupt mask settings according to the laptop
  */

 static __initdata struct dmi_blacklist dmi_blacklist[]={

 	{ broken_toshiba_keyboard, "Toshiba Satellite 4030cdt", { /* Keyboard generates spurious repeats */
 			MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
 			NO_MATCH, NO_MATCH, NO_MATCH
 			} },
 #ifdef CONFIG_ACPI_SLEEP
 	{ reset_videomode_after_s3, "Toshiba Satellite 4030cdt", { /* Reset video mode after returning from ACPI S3 sleep */
 			MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
 			NO_MATCH, NO_MATCH, NO_MATCH
 			} },
 #endif

 #ifdef	CONFIG_ACPI_BOOT
 	/*
 	 * If your system is blacklisted here, but you find that acpi=force
 	 * works for you, please contact acpi-devel@sourceforge.net
 	 */

 	/*
 	 *	Boxes that need ACPI disabled
 	 */

 	{ dmi_disable_acpi, "IBM Thinkpad", {
 			MATCH(DMI_BOARD_VENDOR, "IBM"),
 			MATCH(DMI_BOARD_NAME, "2629H1G"),
 			NO_MATCH, NO_MATCH }},

 	/*
 	 *	Boxes that need acpi=ht
 	 */

 	{ force_acpi_ht, "FSC Primergy T850", {
 			MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 			MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "DELL GX240", {
 			MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"),
 			MATCH(DMI_BOARD_NAME, "OptiPlex GX240"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "HP VISUALIZE NT Workstation", {
 			MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
 			MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "Compaq Workstation W8000", {
 			MATCH(DMI_SYS_VENDOR, "Compaq"),
 			MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "ASUS P4B266", {
 			MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
 			MATCH(DMI_BOARD_NAME, "P4B266"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "ASUS P2B-DS", {
 			MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
 			MATCH(DMI_BOARD_NAME, "P2B-DS"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "ASUS CUR-DLS", {
 			MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
 			MATCH(DMI_BOARD_NAME, "CUR-DLS"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "ABIT i440BX-W83977", {
 			MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"),
 			MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "IBM Bladecenter", {
 			MATCH(DMI_BOARD_VENDOR, "IBM"),
 			MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "IBM eServer xSeries 360", {
 			MATCH(DMI_BOARD_VENDOR, "IBM"),
 			MATCH(DMI_BOARD_NAME, "eServer xSeries 360"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "IBM eserver xSeries 330", {
 			MATCH(DMI_BOARD_VENDOR, "IBM"),
 			MATCH(DMI_BOARD_NAME, "eserver xSeries 330"),
 			NO_MATCH, NO_MATCH }},

 	{ force_acpi_ht, "IBM eserver xSeries 440", {
 			MATCH(DMI_BOARD_VENDOR, "IBM"),
 			MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"),
 			NO_MATCH, NO_MATCH }},

 #endif	// CONFIG_ACPI_BOOT

 #ifdef	CONFIG_ACPI_PCI
 	/*
 	 *	Boxes that need ACPI PCI IRQ routing disabled
 	 */

 	{ disable_acpi_irq, "ASUS A7V", {
 			MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"),
 			MATCH(DMI_BOARD_NAME, "<A7V>"),
 			/* newer BIOS, Revision 1011, does work */
 			MATCH(DMI_BIOS_VERSION, "ASUS A7V ACPI BIOS Revision 1007"),
 			NO_MATCH }},

 	/*
 	 *	Boxes that need ACPI PCI IRQ routing and PCI scan disabled
 	 */
 	{ disable_acpi_pci, "ASUS PR-DLS", {	/* _BBN 0 bug */
 			MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
 			MATCH(DMI_BOARD_NAME, "PR-DLS"),
 			MATCH(DMI_BIOS_VERSION, "ASUS PR-DLS ACPI BIOS Revision 1010"),
 			MATCH(DMI_BIOS_DATE, "03/21/2003") }},

  	{ disable_acpi_pci, "Acer TravelMate 36x Laptop", {
  			MATCH(DMI_SYS_VENDOR, "Acer"),
  			MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
  			NO_MATCH, NO_MATCH
  			} },

 #endif

 	{ NULL, }
 };

 /*
  *	Process a DMI table entry. Right now all we care about are the BIOS
  *	and machine entries. For 2.5 we should pull the smbus controller info
  *	out of here.
  */

 static void __init dmi_decode(struct dmi_header *dm)
 {
 #ifdef DMI_DEBUG
 	u8 *data = (u8 *)dm;
 #endif

 	switch(dm->type)
 	{
 		case  0:
 			dmi_printk(("BIOS Vendor: %s\n",
 				dmi_string(dm, data[4])));
 			dmi_save_ident(dm, DMI_BIOS_VENDOR, 4);
 			dmi_printk(("BIOS Version: %s\n",
 				dmi_string(dm, data[5])));
 			dmi_save_ident(dm, DMI_BIOS_VERSION, 5);
 			dmi_printk(("BIOS Release: %s\n",
 				dmi_string(dm, data[8])));
 			dmi_save_ident(dm, DMI_BIOS_DATE, 8);
 			break;
 		case 1:
 			dmi_printk(("System Vendor: %s\n",
 				dmi_string(dm, data[4])));
 			dmi_save_ident(dm, DMI_SYS_VENDOR, 4);
 			dmi_printk(("Product Name: %s\n",
 				dmi_string(dm, data[5])));
 			dmi_save_ident(dm, DMI_PRODUCT_NAME, 5);
 			dmi_printk(("Version: %s\n",
 				dmi_string(dm, data[6])));
 			dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6);
 			dmi_printk(("Serial Number: %s\n",
 				dmi_string(dm, data[7])));
 			break;
 		case 2:
 			dmi_printk(("Board Vendor: %s\n",
 				dmi_string(dm, data[4])));
 			dmi_save_ident(dm, DMI_BOARD_VENDOR, 4);
 			dmi_printk(("Board Name: %s\n",
 				dmi_string(dm, data[5])));
 			dmi_save_ident(dm, DMI_BOARD_NAME, 5);
 			dmi_printk(("Board Version: %s\n",
 				dmi_string(dm, data[6])));
 			dmi_save_ident(dm, DMI_BOARD_VERSION, 6);
 			break;
 	}
 }

 void __init dmi_scan_machine(void)
 {
 	int err = dmi_iterate(dmi_decode);
 	if(err == 0)
  		dmi_check_system(dmi_blacklist);
 	else
 		printk(KERN_INFO "DMI not present.\n");
 }


 /**
  *	dmi_check_system - check system DMI data
  *	@list: array of dmi_system_id structures to match against
  *
  *	Walk the blacklist table running matching functions until someone
  *	returns non zero or we hit the end. Callback function is called for
  *	each successfull match. Returns the number of matches.
  */
 int dmi_check_system(struct dmi_system_id *list)
 {
 	int i, count = 0;
 	struct dmi_system_id *d = list;

 	while (d->ident) {
 		for (i = 0; i < ARRAY_SIZE(d->matches); i++) {
 			int s = d->matches[i].slot;
 			if (s == DMI_NONE)
 				continue;
 			if (dmi_ident[s] && strstr(dmi_ident[s], d->matches[i].substr))
 				continue;
 			/* No match */
 			goto fail;
 		}
 		if (d->callback && d->callback(d))
 			break;
 		count++;
 fail:		d++;
 	}

 	return count;
 }

 EXPORT_SYMBOL(dmi_check_system);

 /**
  *	dmi_get_system_info - return DMI data value
  *	@field: data index (see enum dmi_filed)
  *
  *	Returns one DMI data value, can be used to perform
  *	complex DMI data checks.
  */
 char * dmi_get_system_info(int field)
 {
 	return dmi_ident[field];
 }
	#include <linux/types.h>
	#include <linux/kernel.h>
	#include <linux/string.h>
	#include <linux/init.h>
	#include <linux/module.h>
	#include <linux/slab.h>
	#include <linux/acpi.h>
	#include <asm/io.h>
	#include <linux/pm.h>
	#include <asm/system.h>
	#include <linux/dmi.h>
	#include <linux/bootmem.h>


	struct dmi_header
	{
	u8 type;
	u8 length;
	u16 handle;
	};

	#undef DMI_DEBUG

	#ifdef DMI_DEBUG
	#define dmi_printk(x) printk x
	#else
	#define dmi_printk(x)
	#endif

	static char * __init dmi_string(struct dmi_header *dm, u8 s)
	{
	u8 bp=(u8 )dm;
	bp+=dm->length;
	if(!s)
	return "";
	s--;
	while(s>0 && *bp)
	{
	bp+=strlen(bp);
	bp++;
	s--;
	}
	return bp;
	}

	/*
	* We have to be cautious here. We have seen BIOSes with DMI pointers
	* pointing to completely the wrong place for example
	*/

	static int __init dmi_table(u32 base, int len, int num, void (decode)(struct dmi_header ))
	{
	u8 *buf;
	struct dmi_header *dm;
	u8 *data;
	int i=0;

	buf = bt_ioremap(base, len);
	if(buf==NULL)
	return -1;

	data = buf;

	/*
	* Stop when we see all the items the table claimed to have
	* OR we run off the end of the table (also happens)
	*/

	while(i<num && data-buf+sizeof(struct dmi_header)<=len)
	{
	dm=(struct dmi_header *)data;
	/*
	* We want to know the total length (formated area and strings)
	* before decoding to make sure we won't run off the table in
	* dmi_decode or dmi_string
	*/
	data+=dm->length;
	while(data-buf<len-1 && (data[0] \|\| data[1]))
	data++;
	if(data-buf<len-1)
	decode(dm);
	data+=2;
	i++;
	}
	bt_iounmap(buf, len);
	return 0;
	}


	inline static int __init dmi_checksum(u8 *buf)
	{
	u8 sum=0;
	int a;

	for(a=0; a<15; a++)
	sum+=buf[a];
	return (sum==0);
	}

	static int __init dmi_iterate(void (decode)(struct dmi_header ))
	{
	u8 buf[15];
	char __iomem p, q;

	/*
	* no iounmap() for that ioremap(); it would be a no-op, but it's
	* so early in setup that sucker gets confused into doing what
	* it shouldn't if we actually call it.
	*/
	p = ioremap(0xF0000, 0x10000);
	if (p == NULL)
	return -1;
	for (q = p; q < p + 0x10000; q += 16) {
	memcpy_fromio(buf, q, 15);
	if(memcmp(buf, "_DMI_", 5)==0 && dmi_checksum(buf))
	{
	u16 num=buf[13]<<8\|buf[12];
	u16 len=buf[7]<<8\|buf[6];
	u32 base=buf[11]<<24\|buf[10]<<16\|buf[9]<<8\|buf[8];

	/*
	* DMI version 0.0 means that the real version is taken from
	* the SMBIOS version, which we don't know at this point.
	*/
	if(buf[14]!=0)
	printk(KERN_INFO "DMI %d.%d present.\n",
	buf[14]>>4, buf[14]&0x0F);
	else
	printk(KERN_INFO "DMI present.\n");
	dmi_printk((KERN_INFO "%d structures occupying %d bytes.\n",
	num, len));
	dmi_printk((KERN_INFO "DMI table at 0x%08X.\n",
	base));
	if(dmi_table(base,len, num, decode)==0)
	return 0;
	}
	}
	return -1;
	}

	static char *dmi_ident[DMI_STRING_MAX];

	/*
	* Save a DMI string
	*/

	static void __init dmi_save_ident(struct dmi_header *dm, int slot, int string)
	{
	char d = (char)dm;
	char *p = dmi_string(dm, d[string]);
	if(p==NULL \|\| *p == 0)
	return;
	if (dmi_ident[slot])
	return;
	dmi_ident[slot] = alloc_bootmem(strlen(p)+1);
	if(dmi_ident[slot])
	strcpy(dmi_ident[slot], p);
	else
	printk(KERN_ERR "dmi_save_ident: out of memory.\n");
	}

	/*
	* Ugly compatibility crap.
	*/
	#define dmi_blacklist dmi_system_id
	#define NO_MATCH { DMI_NONE, NULL}
	#define MATCH DMI_MATCH

	/*
	* Toshiba keyboard likes to repeat keys when they are not repeated.
	*/

	static __init int broken_toshiba_keyboard(struct dmi_blacklist *d)
	{
	printk(KERN_WARNING "Toshiba with broken keyboard detected. If your keyboard sometimes generates 3 keypresses instead of one, see http://davyd.ucc.asn.au/projects/toshiba/README\n");
	return 0;
	}


	#ifdef CONFIG_ACPI_SLEEP
	static __init int reset_videomode_after_s3(struct dmi_blacklist *d)
	{
	/* See acpi_wakeup.S */
	extern long acpi_video_flags;
	acpi_video_flags \|= 2;
	return 0;
	}
	#endif


	#ifdef CONFIG_ACPI_BOOT
	extern int acpi_force;

	static __init __attribute__((unused)) int dmi_disable_acpi(struct dmi_blacklist *d)
	{
	if (!acpi_force) {
	printk(KERN_NOTICE "%s detected: acpi off\n",d->ident);
	disable_acpi();
	} else {
	printk(KERN_NOTICE
	"Warning: DMI blacklist says broken, but acpi forced\n");
	}
	return 0;
	}

	/*
	* Limit ACPI to CPU enumeration for HT
	*/
	static __init __attribute__((unused)) int force_acpi_ht(struct dmi_blacklist *d)
	{
	if (!acpi_force) {
	printk(KERN_NOTICE "%s detected: force use of acpi=ht\n", d->ident);
	disable_acpi();
	acpi_ht = 1;
	} else {
	printk(KERN_NOTICE
	"Warning: acpi=force overrules DMI blacklist: acpi=ht\n");
	}
	return 0;
	}
	#endif

	#ifdef CONFIG_ACPI_PCI
	static __init int disable_acpi_irq(struct dmi_blacklist *d)
	{
	if (!acpi_force) {
	printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n",
	d->ident);
	acpi_noirq_set();
	}
	return 0;
	}
	static __init int disable_acpi_pci(struct dmi_blacklist *d)
	{
	if (!acpi_force) {
	printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n",
	d->ident);
	acpi_disable_pci();
	}
	return 0;
	}
	#endif

	/*
	* Process the DMI blacklists
	*/


	/*
	* This will be expanded over time to force things like the APM
	* interrupt mask settings according to the laptop
	*/

	static __initdata struct dmi_blacklist dmi_blacklist[]={

	{ broken_toshiba_keyboard, "Toshiba Satellite 4030cdt", { /* Keyboard generates spurious repeats */
	MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
	NO_MATCH, NO_MATCH, NO_MATCH
	} },
	#ifdef CONFIG_ACPI_SLEEP
	{ reset_videomode_after_s3, "Toshiba Satellite 4030cdt", { /* Reset video mode after returning from ACPI S3 sleep */
	MATCH(DMI_PRODUCT_NAME, "S4030CDT/4.3"),
	NO_MATCH, NO_MATCH, NO_MATCH
	} },
	#endif

	#ifdef CONFIG_ACPI_BOOT
	/*
	* If your system is blacklisted here, but you find that acpi=force
	* works for you, please contact acpi-devel@sourceforge.net
	*/

	/*
	* Boxes that need ACPI disabled
	*/

	{ dmi_disable_acpi, "IBM Thinkpad", {
	MATCH(DMI_BOARD_VENDOR, "IBM"),
	MATCH(DMI_BOARD_NAME, "2629H1G"),
	NO_MATCH, NO_MATCH }},

	/*
	* Boxes that need acpi=ht
	*/

	{ force_acpi_ht, "FSC Primergy T850", {
	MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
	MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "DELL GX240", {
	MATCH(DMI_BOARD_VENDOR, "Dell Computer Corporation"),
	MATCH(DMI_BOARD_NAME, "OptiPlex GX240"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "HP VISUALIZE NT Workstation", {
	MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
	MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "Compaq Workstation W8000", {
	MATCH(DMI_SYS_VENDOR, "Compaq"),
	MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "ASUS P4B266", {
	MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
	MATCH(DMI_BOARD_NAME, "P4B266"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "ASUS P2B-DS", {
	MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
	MATCH(DMI_BOARD_NAME, "P2B-DS"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "ASUS CUR-DLS", {
	MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
	MATCH(DMI_BOARD_NAME, "CUR-DLS"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "ABIT i440BX-W83977", {
	MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"),
	MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "IBM Bladecenter", {
	MATCH(DMI_BOARD_VENDOR, "IBM"),
	MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "IBM eServer xSeries 360", {
	MATCH(DMI_BOARD_VENDOR, "IBM"),
	MATCH(DMI_BOARD_NAME, "eServer xSeries 360"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "IBM eserver xSeries 330", {
	MATCH(DMI_BOARD_VENDOR, "IBM"),
	MATCH(DMI_BOARD_NAME, "eserver xSeries 330"),
	NO_MATCH, NO_MATCH }},

	{ force_acpi_ht, "IBM eserver xSeries 440", {
	MATCH(DMI_BOARD_VENDOR, "IBM"),
	MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"),
	NO_MATCH, NO_MATCH }},

	#endif // CONFIG_ACPI_BOOT

	#ifdef CONFIG_ACPI_PCI
	/*
	* Boxes that need ACPI PCI IRQ routing disabled
	*/

	{ disable_acpi_irq, "ASUS A7V", {
	MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC"),
	MATCH(DMI_BOARD_NAME, "<A7V>"),
	/* newer BIOS, Revision 1011, does work */
	MATCH(DMI_BIOS_VERSION, "ASUS A7V ACPI BIOS Revision 1007"),
	NO_MATCH }},

	/*
	* Boxes that need ACPI PCI IRQ routing and PCI scan disabled
	*/
	{ disable_acpi_pci, "ASUS PR-DLS", { /* _BBN 0 bug */
	MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
	MATCH(DMI_BOARD_NAME, "PR-DLS"),
	MATCH(DMI_BIOS_VERSION, "ASUS PR-DLS ACPI BIOS Revision 1010"),
	MATCH(DMI_BIOS_DATE, "03/21/2003") }},

	{ disable_acpi_pci, "Acer TravelMate 36x Laptop", {
	MATCH(DMI_SYS_VENDOR, "Acer"),
	MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
	NO_MATCH, NO_MATCH
	} },

	#endif

	{ NULL, }
	};

	/*
	* Process a DMI table entry. Right now all we care about are the BIOS
	* and machine entries. For 2.5 we should pull the smbus controller info
	* out of here.
	*/

	static void __init dmi_decode(struct dmi_header *dm)
	{
	#ifdef DMI_DEBUG
	u8 data = (u8 )dm;
	#endif

	switch(dm->type)
	{
	case 0:
	dmi_printk(("BIOS Vendor: %s\n",
	dmi_string(dm, data[4])));
	dmi_save_ident(dm, DMI_BIOS_VENDOR, 4);
	dmi_printk(("BIOS Version: %s\n",
	dmi_string(dm, data[5])));
	dmi_save_ident(dm, DMI_BIOS_VERSION, 5);
	dmi_printk(("BIOS Release: %s\n",
	dmi_string(dm, data[8])));
	dmi_save_ident(dm, DMI_BIOS_DATE, 8);
	break;
	case 1:
	dmi_printk(("System Vendor: %s\n",
	dmi_string(dm, data[4])));
	dmi_save_ident(dm, DMI_SYS_VENDOR, 4);
	dmi_printk(("Product Name: %s\n",
	dmi_string(dm, data[5])));
	dmi_save_ident(dm, DMI_PRODUCT_NAME, 5);
	dmi_printk(("Version: %s\n",
	dmi_string(dm, data[6])));
	dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6);
	dmi_printk(("Serial Number: %s\n",
	dmi_string(dm, data[7])));
	break;
	case 2:
	dmi_printk(("Board Vendor: %s\n",
	dmi_string(dm, data[4])));
	dmi_save_ident(dm, DMI_BOARD_VENDOR, 4);
	dmi_printk(("Board Name: %s\n",
	dmi_string(dm, data[5])));
	dmi_save_ident(dm, DMI_BOARD_NAME, 5);
	dmi_printk(("Board Version: %s\n",
	dmi_string(dm, data[6])));
	dmi_save_ident(dm, DMI_BOARD_VERSION, 6);
	break;
	}
	}

	void __init dmi_scan_machine(void)
	{
	int err = dmi_iterate(dmi_decode);
	if(err == 0)
	dmi_check_system(dmi_blacklist);
	else
	printk(KERN_INFO "DMI not present.\n");
	}


	/**
	* dmi_check_system - check system DMI data
	* @list: array of dmi_system_id structures to match against
	*
	* Walk the blacklist table running matching functions until someone
	* returns non zero or we hit the end. Callback function is called for
	* each successfull match. Returns the number of matches.
	*/
	int dmi_check_system(struct dmi_system_id *list)
	{
	int i, count = 0;
	struct dmi_system_id *d = list;

	while (d->ident) {
	for (i = 0; i < ARRAY_SIZE(d->matches); i++) {
	int s = d->matches[i].slot;
	if (s == DMI_NONE)
	continue;
	if (dmi_ident[s] && strstr(dmi_ident[s], d->matches[i].substr))
	continue;
	/* No match */
	goto fail;
	}
	if (d->callback && d->callback(d))
	break;
	count++;
	fail: d++;
	}

	return count;
	}

	EXPORT_SYMBOL(dmi_check_system);

	/**
	* dmi_get_system_info - return DMI data value
	* @field: data index (see enum dmi_filed)
	*
	* Returns one DMI data value, can be used to perform
	* complex DMI data checks.
	*/
	char * dmi_get_system_info(int field)
	{
	return dmi_ident[field];
	}