acpica-tools/0025-Support-MPST-in-a-big-endian-world.patch

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From 0a25688f36df62579f4dd0444ceba33a0f8d4dcc Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Wed, 23 Sep 2020 16:08:24 -0600
Subject: [PATCH 25/45] Support MPST in a big-endian world
Signed-off-by: Al Stone <ahs3@redhat.com>
---
source/common/dmtbdump2.c | 33 +++++++++++++++++++--------------
source/compiler/dttable2.c | 8 ++++----
2 files changed, 23 insertions(+), 18 deletions(-)
Index: acpica-unix2-20210604/source/common/dmtbdump2.c
===================================================================
--- acpica-unix2-20210604.orig/source/common/dmtbdump2.c
+++ acpica-unix2-20210604/source/common/dmtbdump2.c
@@ -995,11 +995,13 @@ AcpiDmDumpMpst (
UINT16 SubtableCount;
UINT32 PowerStateCount;
UINT32 ComponentCount;
+ UINT32 TableLength = AcpiUtReadUint32 (&Table->Length);
+ UINT16 Tmp16;
/* Main table */
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0, AcpiDmTableInfoMpst);
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0, AcpiDmTableInfoMpst);
if (ACPI_FAILURE (Status))
{
return;
@@ -1007,13 +1009,14 @@ AcpiDmDumpMpst (
/* Subtable: Memory Power Node(s) */
- SubtableCount = (ACPI_CAST_PTR (ACPI_TABLE_MPST, Table))->PowerNodeCount;
+ Tmp16 = (ACPI_CAST_PTR (ACPI_TABLE_MPST, Table))->PowerNodeCount;
+ SubtableCount = AcpiUtReadUint16 (&Tmp16);
Subtable0 = ACPI_ADD_PTR (ACPI_MPST_POWER_NODE, Table, Offset);
- while ((Offset < Table->Length) && SubtableCount)
+ while ((Offset < TableLength) && SubtableCount)
{
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Table->Length, Offset, Subtable0,
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable0,
sizeof (ACPI_MPST_POWER_NODE), AcpiDmTableInfoMpst0);
if (ACPI_FAILURE (Status))
{
@@ -1022,8 +1025,8 @@ AcpiDmDumpMpst (
/* Extract the sub-subtable counts */
- PowerStateCount = Subtable0->NumPowerStates;
- ComponentCount = Subtable0->NumPhysicalComponents;
+ PowerStateCount = AcpiUtReadUint16 (&Subtable0->NumPowerStates);
+ ComponentCount = AcpiUtReadUint16 (&Subtable0->NumPhysicalComponents);
Offset += sizeof (ACPI_MPST_POWER_NODE);
/* Sub-subtables - Memory Power State Structure(s) */
@@ -1034,7 +1037,7 @@ AcpiDmDumpMpst (
while (PowerStateCount)
{
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Table->Length, Offset, Subtable0A,
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable0A,
sizeof (ACPI_MPST_POWER_STATE), AcpiDmTableInfoMpst0A);
if (ACPI_FAILURE (Status))
{
@@ -1057,7 +1060,7 @@ AcpiDmDumpMpst (
while (ComponentCount)
{
- Status = AcpiDmDumpTable (Table->Length, Offset, Subtable0B,
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable0B,
sizeof (ACPI_MPST_COMPONENT), AcpiDmTableInfoMpst0B);
if (ACPI_FAILURE (Status))
{
@@ -1074,22 +1077,24 @@ AcpiDmDumpMpst (
SubtableCount--;
Subtable0 = ACPI_ADD_PTR (ACPI_MPST_POWER_NODE, Subtable0,
sizeof (ACPI_MPST_POWER_NODE) +
- (sizeof (ACPI_MPST_POWER_STATE) * Subtable0->NumPowerStates) +
- (sizeof (ACPI_MPST_COMPONENT) * Subtable0->NumPhysicalComponents));
+ (sizeof (ACPI_MPST_POWER_STATE) *
+ AcpiUtReadUint16 (&Subtable0->NumPowerStates)) +
+ (sizeof (ACPI_MPST_COMPONENT) *
+ AcpiUtReadUint16 (&Subtable0->NumPhysicalComponents)));
}
/* Subtable: Count of Memory Power State Characteristic structures */
AcpiOsPrintf ("\n");
Subtable1 = ACPI_CAST_PTR (ACPI_MPST_DATA_HDR, Subtable0);
- Status = AcpiDmDumpTable (Table->Length, Offset, Subtable1,
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable1,
sizeof (ACPI_MPST_DATA_HDR), AcpiDmTableInfoMpst1);
if (ACPI_FAILURE (Status))
{
return;
}
- SubtableCount = Subtable1->CharacteristicsCount;
+ SubtableCount = AcpiUtReadUint16 (&Subtable1->CharacteristicsCount);
Offset += sizeof (ACPI_MPST_DATA_HDR);
/* Subtable: Memory Power State Characteristics structure(s) */
@@ -1097,10 +1102,10 @@ AcpiDmDumpMpst (
Subtable2 = ACPI_ADD_PTR (ACPI_MPST_POWER_DATA, Subtable1,
sizeof (ACPI_MPST_DATA_HDR));
- while ((Offset < Table->Length) && SubtableCount)
+ while ((Offset < TableLength) && SubtableCount)
{
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Table->Length, Offset, Subtable2,
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable2,
sizeof (ACPI_MPST_POWER_DATA), AcpiDmTableInfoMpst2);
if (ACPI_FAILURE (Status))
{
Index: acpica-unix2-20210604/source/compiler/dttable2.c
===================================================================
--- acpica-unix2-20210604.orig/source/compiler/dttable2.c
+++ acpica-unix2-20210604/source/compiler/dttable2.c
@@ -350,7 +350,7 @@ DtCompileMpst (
DtPushSubtable (Subtable);
MpstChannelInfo = ACPI_CAST_PTR (ACPI_MPST_CHANNEL, Subtable->Buffer);
- SubtableCount = MpstChannelInfo->PowerNodeCount;
+ SubtableCount = AcpiUtReadUint16 (&MpstChannelInfo->PowerNodeCount);
while (*PFieldList && SubtableCount)
{
@@ -368,8 +368,8 @@ DtCompileMpst (
DtPushSubtable (Subtable);
MpstPowerNode = ACPI_CAST_PTR (ACPI_MPST_POWER_NODE, Subtable->Buffer);
- PowerStateCount = MpstPowerNode->NumPowerStates;
- ComponentCount = MpstPowerNode->NumPhysicalComponents;
+ PowerStateCount = AcpiUtReadUint16 (&MpstPowerNode->NumPowerStates);
+ ComponentCount = AcpiUtReadUint16 (&MpstPowerNode->NumPhysicalComponents);
ParentTable = DtPeekSubtable ();
@@ -422,7 +422,7 @@ DtCompileMpst (
DtPushSubtable (Subtable);
MpstDataHeader = ACPI_CAST_PTR (ACPI_MPST_DATA_HDR, Subtable->Buffer);
- SubtableCount = MpstDataHeader->CharacteristicsCount;
+ SubtableCount = AcpiUtReadUint16(&MpstDataHeader->CharacteristicsCount);
ParentTable = DtPeekSubtable ();