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acpica-tools/0013-Support-FADT-aka-FACP-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 3288b60b3ddc2df4656842d424bfc1e6a51b2ad2 Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Sun, 20 Sep 2020 11:42:21 -0600
Subject: [PATCH 13/40] Support FADT (aka, FACP) in a big-endian world
Signed-off-by: Al Stone <ahs3@redhat.com>
---
source/common/dmtbdump.c | 25 ++++++++++++-----------
source/components/tables/tbfadt.c | 34 +++++++++++++++++++++++--------
2 files changed, 38 insertions(+), 21 deletions(-)
Index: acpica-unix2-20200925/source/common/dmtbdump.c
===================================================================
--- acpica-unix2-20200925.orig/source/common/dmtbdump.c
+++ acpica-unix2-20200925/source/common/dmtbdump.c
@@ -358,11 +358,12 @@ AcpiDmDumpFadt (
ACPI_TABLE_HEADER *Table)
{
ACPI_STATUS Status;
+ UINT32 TableLength = AcpiUtReadUint32(&Table->Length);
/* Always dump the minimum FADT revision 1 fields (ACPI 1.0) */
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt1);
if (ACPI_FAILURE (Status))
{
@@ -371,10 +372,10 @@ AcpiDmDumpFadt (
/* Check for FADT revision 2 fields (ACPI 1.0B MS extensions) */
- if ((Table->Length > ACPI_FADT_V1_SIZE) &&
- (Table->Length <= ACPI_FADT_V2_SIZE))
+ if ((TableLength > ACPI_FADT_V1_SIZE) &&
+ (TableLength <= ACPI_FADT_V2_SIZE))
{
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt2);
if (ACPI_FAILURE (Status))
{
@@ -384,9 +385,9 @@ AcpiDmDumpFadt (
/* Check for FADT revision 3/4 fields and up (ACPI 2.0+ extended data) */
- else if (Table->Length > ACPI_FADT_V2_SIZE)
+ else if (TableLength > ACPI_FADT_V2_SIZE)
{
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt3);
if (ACPI_FAILURE (Status))
{
@@ -395,9 +396,9 @@ AcpiDmDumpFadt (
/* Check for FADT revision 5 fields and up (ACPI 5.0+) */
- if (Table->Length > ACPI_FADT_V3_SIZE)
+ if (TableLength > ACPI_FADT_V3_SIZE)
{
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt5);
if (ACPI_FAILURE (Status))
{
@@ -407,9 +408,9 @@ AcpiDmDumpFadt (
/* Check for FADT revision 6 fields and up (ACPI 6.0+) */
- if (Table->Length > ACPI_FADT_V3_SIZE)
+ if (TableLength > ACPI_FADT_V3_SIZE)
{
- Status = AcpiDmDumpTable (Table->Length, 0, Table, 0,
+ Status = AcpiDmDumpTable (TableLength, 0, Table, 0,
AcpiDmTableInfoFadt6);
if (ACPI_FAILURE (Status))
{
@@ -420,11 +421,11 @@ AcpiDmDumpFadt (
/* Validate various fields in the FADT, including length */
- AcpiTbCreateLocalFadt (Table, Table->Length);
+ AcpiTbCreateLocalFadt (Table, TableLength);
/* Validate FADT length against the revision */
- AcpiDmValidateFadtLength (Table->Revision, Table->Length);
+ AcpiDmValidateFadtLength (Table->Revision, TableLength);
}
Index: acpica-unix2-20200925/source/components/tables/tbfadt.c
===================================================================
--- acpica-unix2-20200925.orig/source/components/tables/tbfadt.c
+++ acpica-unix2-20200925/source/components/tables/tbfadt.c
@@ -289,7 +289,6 @@ AcpiTbSelectAddress (
UINT32 Address32,
UINT64 Address64)
{
-
if (!Address64)
{
/* 64-bit address is zero, use 32-bit address */
@@ -520,6 +519,9 @@ AcpiTbConvertFadt (
UINT8 Length;
UINT8 Flags;
UINT32 i;
+ UINT32 Tmp;
+ UINT32 Value32;
+ UINT64 Value64;
/*
@@ -533,7 +535,7 @@ AcpiTbConvertFadt (
* Note: The FADT revision value is unreliable. Only the length can be
* trusted.
*/
- if (AcpiGbl_FADT.Header.Length <= ACPI_FADT_V2_SIZE)
+ if (AcpiUtReadUint32(&AcpiGbl_FADT.Header.Length) <= ACPI_FADT_V2_SIZE)
{
AcpiGbl_FADT.PreferredProfile = 0;
AcpiGbl_FADT.PstateControl = 0;
@@ -546,14 +548,19 @@ AcpiTbConvertFadt (
* current FADT version as defined by the ACPI specification.
* Thus, we will have a common FADT internally.
*/
- AcpiGbl_FADT.Header.Length = sizeof (ACPI_TABLE_FADT);
+ Tmp = sizeof (ACPI_TABLE_FADT);
+ AcpiUtWriteUint(&AcpiGbl_FADT.Header.Length, sizeof(UINT32),
+ &Tmp, sizeof(UINT32));
/*
* Expand the 32-bit DSDT addresses to 64-bit as necessary.
* Later ACPICA code will always use the X 64-bit field.
*/
- AcpiGbl_FADT.XDsdt = AcpiTbSelectAddress ("DSDT",
- AcpiGbl_FADT.Dsdt, AcpiGbl_FADT.XDsdt);
+ Value32 = AcpiUtReadUint32(&AcpiGbl_FADT.Dsdt);
+ Value64 = AcpiUtReadUint64(&AcpiGbl_FADT.XDsdt);
+ Value64 = AcpiTbSelectAddress ("DSDT", Value32, Value64);
+ AcpiUtWriteUint(&AcpiGbl_FADT.XDsdt, sizeof(UINT64),
+ &Value64, sizeof(UINT64));
/* If Hardware Reduced flag is set, we are all done */
@@ -614,7 +621,11 @@ AcpiTbConvertFadt (
{
if (Address64->Address)
{
- if (Address64->Address != (UINT64) Address32)
+ Value32 = AcpiUtReadUint32(&Address32);
+ Value64 = AcpiUtReadUint64(&Address64->Address);
+
+ /* if (Address64->Address != (UINT64) Address32) */
+ if (Value64 != (UINT64) Value32)
{
/* Address mismatch */
@@ -655,9 +666,10 @@ AcpiTbConvertFadt (
*/
if (!Address64->Address || AcpiGbl_Use32BitFadtAddresses)
{
+ Value32 = AcpiUtReadUint32(&Address32);
AcpiTbInitGenericAddress (Address64,
ACPI_ADR_SPACE_SYSTEM_IO, Length,
- (UINT64) Address32, Name, Flags);
+ (UINT64) Value32, Name, Flags);
}
}
@@ -780,10 +792,14 @@ AcpiTbSetupFadtRegisters (
if (Source64->Address)
{
+ UINT64 Address64;
+
+ Address64 = AcpiUtReadUint64(&Source64->Address);
+ Address64 +=
+ (FadtPmInfoTable[i].RegisterNum * Pm1RegisterByteWidth);
AcpiTbInitGenericAddress (FadtPmInfoTable[i].Target,
Source64->SpaceId, Pm1RegisterByteWidth,
- Source64->Address +
- (FadtPmInfoTable[i].RegisterNum * Pm1RegisterByteWidth),
+ Address64,
"PmRegisters", 0);
}
}
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