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Diffstat (limited to 'include/acpi/platform/acenv.h')
-rw-r--r--include/acpi/platform/acenv.h44
1 files changed, 18 insertions, 26 deletions
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index 89cee88dd2a5..e3409b6cefbd 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -1,6 +1,6 @@
/******************************************************************************
*
- * Name: acenv.h - Generation environment specific items
+ * Name: acenv.h - Host and compiler configuration
*
*****************************************************************************/
@@ -60,14 +60,12 @@
*
*****************************************************************************/
+/* Linkable ACPICA library */
#ifdef ACPI_LIBRARY
-/*
- * Note: The non-debug version of the acpi_library does not contain any
- * debug support, for minimal size. The debug version uses ACPI_FULL_DEBUG
- */
#define ACPI_USE_LOCAL_CACHE
#endif
+/* iASL configuration */
#ifdef ACPI_ASL_COMPILER
#define ACPI_DEBUG_OUTPUT
#define ACPI_APPLICATION
@@ -77,6 +75,7 @@
#define ACPI_DATA_TABLE_DISASSEMBLY
#endif
+/* acpi_exec configuration. Multithreaded with full AML debugger */
#ifdef ACPI_EXEC_APP
#undef DEBUGGER_THREADING
#define DEBUGGER_THREADING DEBUGGER_SINGLE_THREADED
@@ -87,11 +86,13 @@
#define ACPI_DBG_TRACK_ALLOCATIONS
#endif
+/* Common for all ACPICA applications */
#ifdef ACPI_APPLICATION
#define ACPI_USE_SYSTEM_CLIBRARY
#define ACPI_USE_LOCAL_CACHE
#endif
+/* Common debug support */
#ifdef ACPI_FULL_DEBUG
#define ACPI_DEBUGGER
#define ACPI_DEBUG_OUTPUT
@@ -186,9 +187,7 @@
*
*****************************************************************************/
-/*
- * Are mutexes supported by the host? default is no, use binary semaphores.
- */
+/* Type of mutex supported by host. Default is binary semaphores. */
#ifndef ACPI_MUTEX_TYPE
#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
#endif
@@ -230,9 +229,7 @@
* We want to keep these to a minimum.
*/
#ifdef ACPI_USE_STANDARD_HEADERS
-/*
- * Use the standard headers from the standard locations
- */
+/* Use the standard headers from the standard locations */
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
@@ -240,9 +237,7 @@
#endif /* ACPI_USE_STANDARD_HEADERS */
-/*
- * We will be linking to the standard Clib functions
- */
+/* We will be linking to the standard Clib functions */
#define ACPI_STRSTR(s1,s2) strstr((s1), (s2))
#define ACPI_STRCHR(s1,c) strchr((s1), (c))
#define ACPI_STRLEN(s) (acpi_size) strlen((s))
@@ -274,12 +269,12 @@
*
*****************************************************************************/
- /*
- * Use local definitions of C library macros and functions
- * NOTE: The function implementations may not be as efficient
- * as an inline or assembly code implementation provided by a
- * native C library.
- */
+/*
+ * Use local definitions of C library macros and functions. These function
+ * implementations may not be as efficient as an inline or assembly code
+ * implementation provided by a native C library, but they are functionally
+ * equivalent.
+ */
#ifndef va_arg
@@ -288,15 +283,11 @@
typedef char *va_list;
#endif /* _VALIST */
-/*
- * Storage alignment properties
- */
+/* Storage alignment properties */
#define _AUPBND (sizeof (acpi_native_int) - 1)
#define _ADNBND (sizeof (acpi_native_int) - 1)
-/*
- * Variable argument list macro definitions
- */
+/* Variable argument list macro definitions */
#define _bnd(X, bnd) (((sizeof (X)) + (bnd)) & (~(bnd)))
#define va_arg(ap, T) (*(T *)(((ap) += (_bnd (T, _AUPBND))) - (_bnd (T,_ADNBND))))
#define va_end(ap) (void) 0
@@ -304,6 +295,7 @@ typedef char *va_list;
#endif /* va_arg */
+/* Use the local (ACPICA) definitions of the clib functions */
#define ACPI_STRSTR(s1,s2) acpi_ut_strstr ((s1), (s2))
#define ACPI_STRCHR(s1,c) acpi_ut_strchr ((s1), (c))
#define ACPI_STRLEN(s) (acpi_size) acpi_ut_strlen ((s))