This problem was introduced with
http://tracker.coreboot.org/trac/coreboot/changeset/3953 Note that all corresponding DSDTs only ever check TOM2 against 0. Signed-off-by: Tobias Diedrich <ranma+coreboot@tdiedrich.de> Acked-by: Rudolf Marek <r.marek@assembler.cz> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6082 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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@ -1129,7 +1129,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1557,7 +1557,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1126,7 +1126,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1572,7 +1572,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1168,7 +1168,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1614,7 +1614,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1128,7 +1128,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1480,7 +1480,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1168,7 +1168,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1614,7 +1614,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1122,7 +1122,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1530,7 +1530,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1168,7 +1168,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1614,7 +1614,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1168,7 +1168,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1614,7 +1614,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1168,7 +1168,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1614,7 +1614,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1168,7 +1168,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1614,7 +1614,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1168,7 +1168,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1614,7 +1614,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1129,7 +1129,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1557,7 +1557,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1129,7 +1129,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1557,7 +1557,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -1129,7 +1129,7 @@ DefinitionBlock (
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/* Note: Only need HID on Primary Bus */
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Device(PCI0) {
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External (TOM1)
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External (TOM2)
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External (TOM2) /* (<real tom2> >> 20) to make it fit into 32 bit for XP */
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Name(_HID, EISAID("PNP0A03"))
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Name(_ADR, 0x00180000) /* Dev# = BSP Dev#, Func# = 0 */
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Method(_BBN, 0) { /* Bus number = 0 */
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@ -1557,7 +1557,8 @@ DefinitionBlock (
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/*
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* If(LNotEqual(TOM2, 0x00000000)){
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* Store(0x100000000,DMHB) DRAM from 4GB to TopMem2
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* Subtract(TOM2, 0x100000000, DMHL)
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* ShiftLeft(TOM2, 20, Local0)
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* Subtract(Local0, 0x100000000, DMHL)
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* }
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*/
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@ -270,7 +270,15 @@ int k8acpi_write_vars(void)
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msr = rdmsr(TOP_MEM);
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lens += acpigen_write_name_dword("TOM1", msr.lo);
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msr = rdmsr(TOP_MEM2);
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lens += acpigen_write_name_qword("TOM2", (((uint64_t) msr.hi) << 32) | msr.lo);
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/*
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* Since XP only implements parts of ACPI 2.0, we can't use a qword
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* here.
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* See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt
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* slide 22ff.
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* Shift value right by 20 bit to make it fit into 32bit,
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* giving us 1MB granularity and a limit of almost 4Exabyte of memory.
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*/
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lens += acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20);
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lens += k8acpi_write_HT();
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//minus opcode
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