acpica-tools/unaligned.patch
Al Stone fc3eef63e8 Update to 20220331 upstream sources
This includes new source tarballs, updated patches, and updated
expected results for test cases.  In addition, three new tables
(PRMT, RGRT and SVKL) now have big-endian support.

Signed-off-by: Al Stone <ahs3@redhat.com>
2022-04-03 15:18:02 -06:00

106 lines
4.2 KiB
Diff

Patch carried over from the prior iasl package and updated. This allows
for builds on systems requiring aligned memory access. Please see
http://lists.acpica.org/pipermail/devel/2010-July/000159.html. Resolves
BZ#865013 and BZ#856856.
--
Add more platforms to the list of the ones requiring aligned memory access.
Also fix callsites where wrong assumptions where made in terms of aligment.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
source/components/executer/exoparg2.c | 12 +++++++++---
source/include/actypes.h | 26 +++++++++++++-------------
3 files changed, 32 insertions(+), 21 deletions(-)
Index: acpica-unix2-20220331/source/components/executer/exoparg2.c
===================================================================
--- acpica-unix2-20220331.orig/source/components/executer/exoparg2.c
+++ acpica-unix2-20220331/source/components/executer/exoparg2.c
@@ -172,6 +172,8 @@ AcpiExOpcode_2A_2T_1R (
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
ACPI_OPERAND_OBJECT *ReturnDesc1 = NULL;
ACPI_OPERAND_OBJECT *ReturnDesc2 = NULL;
+ UINT64 ReturnValue1 = 0;
+ UINT64 ReturnValue2 = 0;
ACPI_STATUS Status;
@@ -206,8 +208,10 @@ AcpiExOpcode_2A_2T_1R (
Status = AcpiUtDivide (
Operand[0]->Integer.Value,
Operand[1]->Integer.Value,
- &ReturnDesc1->Integer.Value,
- &ReturnDesc2->Integer.Value);
+ &ReturnValue1, &ReturnValue2);
+ ReturnDesc1->Integer.Value = ReturnValue1;
+ ReturnDesc2->Integer.Value = ReturnValue2;
+
if (ACPI_FAILURE (Status))
{
goto Cleanup;
@@ -282,6 +286,7 @@ AcpiExOpcode_2A_1T_1R (
ACPI_OPERAND_OBJECT **Operand = &WalkState->Operands[0];
ACPI_OPERAND_OBJECT *ReturnDesc = NULL;
UINT64 Index;
+ UINT64 ReturnValue = 0;
ACPI_STATUS Status = AE_OK;
ACPI_SIZE Length = 0;
@@ -327,7 +332,8 @@ AcpiExOpcode_2A_1T_1R (
Operand[0]->Integer.Value,
Operand[1]->Integer.Value,
NULL,
- &ReturnDesc->Integer.Value);
+ &ReturnValue);
+ ReturnDesc->Integer.Value = ReturnValue;
break;
case AML_CONCATENATE_OP: /* Concatenate (Data1, Data2, Result) */
Index: acpica-unix2-20220331/source/include/actypes.h
===================================================================
--- acpica-unix2-20220331.orig/source/include/actypes.h
+++ acpica-unix2-20220331/source/include/actypes.h
@@ -143,6 +143,19 @@ typedef COMPILER_DEPENDENT_INT64
*/
#define ACPI_THREAD_ID UINT64
+/*
+ * In the case of the Itanium Processor Family (IPF), the hardware does not
+ * support misaligned memory transfers. Set the MISALIGNMENT_NOT_SUPPORTED flag
+ * to indicate that special precautions must be taken to avoid alignment faults.
+ * (IA64 or ia64 is currently used by existing compilers to indicate IPF.)
+ *
+ * Note: EM64T and other X86-64 processors support misaligned transfers,
+ * so there is no need to define this flag.
+ */
+#if defined (__IA64__) || defined (__ia64__) || defined(__alpha__) || defined(__sparc__) || defined(__hppa__) || defined(__arm__)
+#define ACPI_MISALIGNMENT_NOT_SUPPORTED
+#endif
+
/*******************************************************************************
*
@@ -170,20 +183,6 @@ typedef UINT64
#define ACPI_USE_NATIVE_DIVIDE /* Has native 64-bit integer support */
#define ACPI_USE_NATIVE_MATH64 /* Has native 64-bit integer support */
-/*
- * In the case of the Itanium Processor Family (IPF), the hardware does not
- * support misaligned memory transfers. Set the MISALIGNMENT_NOT_SUPPORTED
- * flag to indicate that special precautions must be taken to avoid alignment
- * faults. (IA64 or ia64 is currently used by existing compilers to indicate
- * IPF.)
- *
- * Note: EM64T and other X86-64 processors support misaligned transfers,
- * so there is no need to define this flag.
- */
-#if defined (__IA64__) || defined (__ia64__)
-#define ACPI_MISALIGNMENT_NOT_SUPPORTED
-#endif
-
/*******************************************************************************
*