acpica-tools/0037-Support-IVRS-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

97 lines
3.3 KiB
Diff

From 49b3d77990241c7216412d78e52cf15b3aa6d1ad Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Wed, 30 Sep 2020 18:18:07 -0600
Subject: [PATCH 37/40] Support IVRS in a big-endian world
Signed-off-by: Al Stone <ahs3@redhat.com>
---
source/common/dmtbdump2.c | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)
Index: acpica-unix2-20200925/source/common/dmtbdump2.c
===================================================================
--- acpica-unix2-20200925.orig/source/common/dmtbdump2.c
+++ acpica-unix2-20200925/source/common/dmtbdump2.c
@@ -353,11 +353,13 @@ AcpiDmDumpIvrs (
ACPI_IVRS_DE_HEADER *DeviceEntry;
ACPI_IVRS_HEADER *Subtable;
ACPI_DMTABLE_INFO *InfoTable;
+ UINT32 TableLength = AcpiUtReadUint32(&Table->Length);
+ UINT16 SubtableLength;
/* Main table */
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0, AcpiDmTableInfoIvrs);
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0, AcpiDmTableInfoIvrs);
if (ACPI_FAILURE (Status))
{
return;
@@ -366,13 +368,14 @@ AcpiDmDumpIvrs (
/* Subtables */
Subtable = ACPI_ADD_PTR (ACPI_IVRS_HEADER, Table, Offset);
- while (Offset < Table->Length)
+ while (Offset < TableLength)
{
/* Common subtable header */
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Table->Length, Offset, Subtable,
- Subtable->Length, AcpiDmTableInfoIvrsHdr);
+ SubtableLength = AcpiUtReadUint16(&Subtable->Length);
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable,
+ SubtableLength, AcpiDmTableInfoIvrsHdr);
if (ACPI_FAILURE (Status))
{
return;
@@ -404,7 +407,7 @@ AcpiDmDumpIvrs (
/* Attempt to continue */
- if (!Subtable->Length)
+ if (!SubtableLength)
{
AcpiOsPrintf ("Invalid zero length subtable\n");
return;
@@ -415,8 +418,8 @@ AcpiDmDumpIvrs (
/* Dump the subtable */
AcpiOsPrintf ("\n");
- Status = AcpiDmDumpTable (Table->Length, Offset, Subtable,
- Subtable->Length, InfoTable);
+ Status = AcpiDmDumpTable (TableLength, Offset, Subtable,
+ SubtableLength, InfoTable);
if (ACPI_FAILURE (Status))
{
return;
@@ -442,7 +445,7 @@ AcpiDmDumpIvrs (
sizeof (ACPI_IVRS_HARDWARE2));
}
- while (EntryOffset < (Offset + Subtable->Length))
+ while (EntryOffset < (Offset + SubtableLength))
{
AcpiOsPrintf ("\n");
/*
@@ -504,7 +507,7 @@ AcpiDmDumpIvrs (
/* Dump the Device Entry */
- Status = AcpiDmDumpTable (Table->Length, EntryOffset,
+ Status = AcpiDmDumpTable (TableLength, EntryOffset,
DeviceEntry, EntryLength, InfoTable);
if (ACPI_FAILURE (Status))
{
@@ -520,8 +523,8 @@ AcpiDmDumpIvrs (
NextSubtable:
/* Point to next subtable */
- Offset += Subtable->Length;
- Subtable = ACPI_ADD_PTR (ACPI_IVRS_HEADER, Subtable, Subtable->Length);
+ Offset += SubtableLength;
+ Subtable = ACPI_ADD_PTR (ACPI_IVRS_HEADER, Subtable, SubtableLength);
}
}