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acpica-tools/0036-Support-IORT-in-a-big-endian-world.patch
Al Stone edb6c78416 Update to upstream 20200925 version 
This update also means a major update for all of the big-endian patching
that has been done.  The older mechanism was getting to unwieldy to keep
maintained, and too sensitive to upstream changes.  Hence, redid all of
the old patches, and took the opportunity to make them more amenable to
change over time.  Ultimately, the goal is to have upstream accept these
in some form.

Signed-off-by: Al Stone <ahs3@redhat.com>
2020-10-19 12:24:09 -06:00

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From 88d16feb9d6982cc9c09f2ae9b76b26f0d9c96e0 Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Wed, 30 Sep 2020 17:48:04 -0600
Subject: [PATCH 36/40] Support IORT in a big-endian world
Signed-off-by: Al Stone <ahs3@redhat.com>
---
source/common/dmtbdump2.c | 73 ++++++++++++++++++++++----------------
source/compiler/dttable1.c | 37 ++++++++++---------
2 files changed, 64 insertions(+), 46 deletions(-)
Index: acpica-unix2-20200925/source/common/dmtbdump2.c
===================================================================
--- acpica-unix2-20200925.orig/source/common/dmtbdump2.c
+++ acpica-unix2-20200925/source/common/dmtbdump2.c
@@ -75,16 +75,19 @@ AcpiDmDumpIort (
ACPI_IORT_SMMU *IortSmmu = NULL;
UINT32 Offset;
UINT32 NodeOffset;
+ UINT32 NodeLength;
UINT32 Length;
ACPI_DMTABLE_INFO *InfoTable;
char *String;
UINT32 i;
UINT32 MappingByteLength;
+ UINT32 MappingCount;
+ UINT32 TableLength = AcpiUtReadUint32(&Table->Length);
/* Main table */
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0, AcpiDmTableInfoIort);
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0, AcpiDmTableInfoIort);
if (ACPI_FAILURE (Status))
{
return;
@@ -95,25 +98,26 @@ AcpiDmDumpIort (
/* Dump the OptionalPadding (optional) */
- if (Iort->NodeOffset > Offset)
+ NodeOffset = AcpiUtReadUint32(&Iort->NodeOffset);
+ if (NodeOffset > Offset)
{
- Status = AcpiDmDumpTable (Table->Length, Offset, Table,
- Iort->NodeOffset - Offset, AcpiDmTableInfoIortPad);
+ Status = AcpiDmDumpTable (TableLength, Offset, Table,
+ NodeOffset - Offset, AcpiDmTableInfoIortPad);
if (ACPI_FAILURE (Status))
{
return;
}
}
- Offset = Iort->NodeOffset;
- while (Offset < Table->Length)
+ Offset = AcpiUtReadUint32(&Iort->NodeOffset);
+ while (Offset < TableLength)
{
/* Common subtable header */
IortNode = ACPI_ADD_PTR (ACPI_IORT_NODE, Table, Offset);
AcpiOsPrintf ("\n");
Length = ACPI_OFFSET (ACPI_IORT_NODE, NodeData);
- Status = AcpiDmDumpTable (Table->Length, Offset,
+ Status = AcpiDmDumpTable (TableLength, Offset,
IortNode, Length, AcpiDmTableInfoIortHdr);
if (ACPI_FAILURE (Status))
{
@@ -142,7 +146,7 @@ AcpiDmDumpIort (
case ACPI_IORT_NODE_PCI_ROOT_COMPLEX:
InfoTable = AcpiDmTableInfoIort2;
- Length = IortNode->Length - NodeOffset;
+ Length = AcpiUtReadUint16(&IortNode->Length) - NodeOffset;
break;
case ACPI_IORT_NODE_SMMU:
@@ -155,13 +159,13 @@ AcpiDmDumpIort (
case ACPI_IORT_NODE_SMMU_V3:
InfoTable = AcpiDmTableInfoIort4;
- Length = IortNode->Length - NodeOffset;
+ Length = AcpiUtReadUint16(&IortNode->Length) - NodeOffset;
break;
case ACPI_IORT_NODE_PMCG:
InfoTable = AcpiDmTableInfoIort5;
- Length = IortNode->Length - NodeOffset;
+ Length = AcpiUtReadUint16(&IortNode->Length) - NodeOffset;
break;
default:
@@ -171,7 +175,7 @@ AcpiDmDumpIort (
/* Attempt to continue */
- if (!IortNode->Length)
+ if (!AcpiUtReadUint16(&IortNode->Length))
{
AcpiOsPrintf ("Invalid zero length IORT node\n");
return;
@@ -182,7 +186,7 @@ AcpiDmDumpIort (
/* Dump the node subtable header */
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Table->Length, Offset + NodeOffset,
+ Status = AcpiDmDumpTable (TableLength, Offset + NodeOffset,
ACPI_ADD_PTR (ACPI_IORT_NODE, IortNode, NodeOffset),
Length, InfoTable);
if (ACPI_FAILURE (Status))
@@ -202,9 +206,11 @@ AcpiDmDumpIort (
if (IortItsGroup)
{
- for (i = 0; i < IortItsGroup->ItsCount; i++)
+ UINT32 ItsCount = AcpiUtReadUint32(&IortItsGroup->ItsCount);
+
+ for (i = 0; i < ItsCount; i++)
{
- Status = AcpiDmDumpTable (Table->Length, Offset + NodeOffset,
+ Status = AcpiDmDumpTable (TableLength, Offset + NodeOffset,
ACPI_ADD_PTR (ACPI_IORT_NODE, IortNode, NodeOffset),
4, AcpiDmTableInfoIort0a);
if (ACPI_FAILURE (Status))
@@ -221,12 +227,14 @@ AcpiDmDumpIort (
/* Dump the Padding (optional) */
- if (IortNode->Length > NodeOffset)
+ NodeLength = AcpiUtReadUint16(&IortNode->Length);
+ if (NodeLength > NodeOffset)
{
MappingByteLength =
- IortNode->MappingCount * sizeof (ACPI_IORT_ID_MAPPING);
- Status = AcpiDmDumpTable (Table->Length, Offset + NodeOffset,
- Table, IortNode->Length - NodeOffset - MappingByteLength,
+ AcpiUtReadUint32(&IortNode->MappingCount) *
+ sizeof (ACPI_IORT_ID_MAPPING);
+ Status = AcpiDmDumpTable (TableLength, Offset + NodeOffset,
+ Table, NodeLength - NodeOffset - MappingByteLength,
AcpiDmTableInfoIort1a);
if (ACPI_FAILURE (Status))
{
@@ -243,9 +251,11 @@ AcpiDmDumpIort (
if (IortSmmu)
{
+ UINT32 InterruptCount;
+
Length = 2 * sizeof (UINT64);
- NodeOffset = IortSmmu->GlobalInterruptOffset;
- Status = AcpiDmDumpTable (Table->Length, Offset + NodeOffset,
+ NodeOffset = AcpiUtReadUint32(&IortSmmu->GlobalInterruptOffset);
+ Status = AcpiDmDumpTable (TableLength, Offset + NodeOffset,
ACPI_ADD_PTR (ACPI_IORT_NODE, IortNode, NodeOffset),
Length, AcpiDmTableInfoIort3a);
if (ACPI_FAILURE (Status))
@@ -253,10 +263,11 @@ AcpiDmDumpIort (
return;
}
- NodeOffset = IortSmmu->ContextInterruptOffset;
- for (i = 0; i < IortSmmu->ContextInterruptCount; i++)
+ NodeOffset = AcpiUtReadUint32(&IortSmmu->ContextInterruptOffset);
+ InterruptCount = AcpiUtReadUint32(&IortSmmu->ContextInterruptCount);
+ for (i = 0; i < InterruptCount; i++)
{
- Status = AcpiDmDumpTable (Table->Length, Offset + NodeOffset,
+ Status = AcpiDmDumpTable (TableLength, Offset + NodeOffset,
ACPI_ADD_PTR (ACPI_IORT_NODE, IortNode, NodeOffset),
8, AcpiDmTableInfoIort3b);
if (ACPI_FAILURE (Status))
@@ -267,10 +278,11 @@ AcpiDmDumpIort (
NodeOffset += 8;
}
- NodeOffset = IortSmmu->PmuInterruptOffset;
- for (i = 0; i < IortSmmu->PmuInterruptCount; i++)
+ NodeOffset = AcpiUtReadUint32(&IortSmmu->PmuInterruptOffset);
+ InterruptCount = AcpiUtReadUint32(&IortSmmu->PmuInterruptCount);
+ for (i = 0; i < InterruptCount; i++)
{
- Status = AcpiDmDumpTable (Table->Length, Offset + NodeOffset,
+ Status = AcpiDmDumpTable (TableLength, Offset + NodeOffset,
ACPI_ADD_PTR (ACPI_IORT_NODE, IortNode, NodeOffset),
8, AcpiDmTableInfoIort3c);
if (ACPI_FAILURE (Status))
@@ -290,12 +302,13 @@ AcpiDmDumpIort (
/* Dump the ID mappings */
- NodeOffset = IortNode->MappingOffset;
- for (i = 0; i < IortNode->MappingCount; i++)
+ NodeOffset = AcpiUtReadUint32(&IortNode->MappingOffset);
+ MappingCount = AcpiUtReadUint32(&IortNode->MappingCount);
+ for (i = 0; i < MappingCount; i++)
{
AcpiOsPrintf ("\n");
Length = sizeof (ACPI_IORT_ID_MAPPING);
- Status = AcpiDmDumpTable (Table->Length, Offset + NodeOffset,
+ Status = AcpiDmDumpTable (TableLength, Offset + NodeOffset,
ACPI_ADD_PTR (ACPI_IORT_NODE, IortNode, NodeOffset),
Length, AcpiDmTableInfoIortMap);
if (ACPI_FAILURE (Status))
@@ -309,7 +322,7 @@ AcpiDmDumpIort (
NextSubtable:
/* Point to next node subtable */
- Offset += IortNode->Length;
+ Offset += AcpiUtReadUint16(&IortNode->Length);
}
}
Index: acpica-unix2-20200925/source/compiler/dttable1.c
===================================================================
--- acpica-unix2-20200925.orig/source/compiler/dttable1.c
+++ acpica-unix2-20200925/source/compiler/dttable1.c
@@ -1516,6 +1516,7 @@ DtCompileIort (
ACPI_IORT_NODE *IortNode;
ACPI_IORT_ITS_GROUP *IortItsGroup;
ACPI_IORT_SMMU *IortSmmu;
+ UINT32 IortNodeOffset;
UINT32 NodeNumber;
UINT32 NodeLength;
UINT32 IdMappingNumber;
@@ -1548,7 +1549,7 @@ DtCompileIort (
* Optionally allows the generic data types to be used for filling
* this field.
*/
- Iort->NodeOffset = sizeof (ACPI_TABLE_IORT);
+ IortNodeOffset = sizeof (ACPI_TABLE_IORT);
Status = DtCompileTable (PFieldList, AcpiDmTableInfoIortPad,
&Subtable);
if (ACPI_FAILURE (Status))
@@ -1558,7 +1559,7 @@ DtCompileIort (
if (Subtable)
{
DtInsertSubtable (ParentTable, Subtable);
- Iort->NodeOffset += Subtable->Length;
+ IortNodeOffset += Subtable->Length;
}
else
{
@@ -1568,8 +1569,9 @@ DtCompileIort (
{
return (Status);
}
- Iort->NodeOffset += PaddingLength;
+ IortNodeOffset += PaddingLength;
}
+ Iort->NodeOffset = AcpiUtReadUint32(&IortNodeOffset);
NodeNumber = 0;
while (*PFieldList)
@@ -1623,7 +1625,7 @@ DtCompileIort (
ItsNumber++;
}
- IortItsGroup->ItsCount = ItsNumber;
+ IortItsGroup->ItsCount = AcpiUtReadUint32(&ItsNumber);
break;
case ACPI_IORT_NODE_NAMED_COMPONENT:
@@ -1657,15 +1659,18 @@ DtCompileIort (
}
else
{
- if (NodeLength > IortNode->MappingOffset)
+ UINT32 MappingOffset;
+
+ MappingOffset = IortNode->MappingOffset;
+ if (NodeLength > MappingOffset)
{
return (AE_BAD_DATA);
}
- if (NodeLength < IortNode->MappingOffset)
+ if (NodeLength < MappingOffset)
{
Status = DtCompilePadding (
- IortNode->MappingOffset - NodeLength,
+ MappingOffset - NodeLength,
&Subtable);
if (ACPI_FAILURE (Status))
{
@@ -1673,7 +1678,7 @@ DtCompileIort (
}
DtInsertSubtable (ParentTable, Subtable);
- NodeLength = IortNode->MappingOffset;
+ NodeLength = MappingOffset;
}
}
break;
@@ -1706,7 +1711,7 @@ DtCompileIort (
/* Compile global interrupt array */
- IortSmmu->GlobalInterruptOffset = NodeLength;
+ IortSmmu->GlobalInterruptOffset = AcpiUtReadUint32(&NodeLength);
Status = DtCompileTable (PFieldList, AcpiDmTableInfoIort3a,
&Subtable);
if (ACPI_FAILURE (Status))
@@ -1720,7 +1725,7 @@ DtCompileIort (
/* Compile context interrupt array */
ContextIrptNumber = 0;
- IortSmmu->ContextInterruptOffset = NodeLength;
+ IortSmmu->ContextInterruptOffset = AcpiUtReadUint32(&NodeLength);
while (*PFieldList)
{
Status = DtCompileTable (PFieldList, AcpiDmTableInfoIort3b,
@@ -1740,12 +1745,12 @@ DtCompileIort (
ContextIrptNumber++;
}
- IortSmmu->ContextInterruptCount = ContextIrptNumber;
+ IortSmmu->ContextInterruptCount = AcpiUtReadUint32(&ContextIrptNumber);
/* Compile PMU interrupt array */
PmuIrptNumber = 0;
- IortSmmu->PmuInterruptOffset = NodeLength;
+ IortSmmu->PmuInterruptOffset = AcpiUtReadUint32(&NodeLength);
while (*PFieldList)
{
Status = DtCompileTable (PFieldList, AcpiDmTableInfoIort3c,
@@ -1765,7 +1770,7 @@ DtCompileIort (
PmuIrptNumber++;
}
- IortSmmu->PmuInterruptCount = PmuIrptNumber;
+ IortSmmu->PmuInterruptCount = AcpiUtReadUint32(&PmuIrptNumber);
break;
case ACPI_IORT_NODE_SMMU_V3:
@@ -1802,7 +1807,7 @@ DtCompileIort (
/* Compile Array of ID mappings */
- IortNode->MappingOffset = NodeLength;
+ IortNode->MappingOffset = AcpiUtReadUint32(&NodeLength);
IdMappingNumber = 0;
while (*PFieldList)
{
@@ -1823,7 +1828,7 @@ DtCompileIort (
IdMappingNumber++;
}
- IortNode->MappingCount = IdMappingNumber;
+ IortNode->MappingCount = AcpiUtReadUint32(&IdMappingNumber);
if (!IdMappingNumber)
{
IortNode->MappingOffset = 0;
@@ -1838,7 +1843,7 @@ DtCompileIort (
NodeNumber++;
}
- Iort->NodeCount = NodeNumber;
+ Iort->NodeCount = AcpiUtReadUint32(&NodeNumber);
return (AE_OK);
}
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