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authorBob Moore <robert.moore@intel.com>2008-12-30 22:03:29 +0300
committerLen Brown <len.brown@intel.com>2008-12-31 09:16:39 +0300
commit1685bd404dc2ecce2fdae6410e85ded2f2c0136d (patch)
tree5ccce028c1b60c50082fb6641b4afc7afdd6e636 /include/acpi
parent7488c8d51134a152f022bc11547157f80a725ff1 (diff)
downloadlinux-1685bd404dc2ecce2fdae6410e85ded2f2c0136d.tar.xz
ACPICA: Add ACPI_MUTEX_TYPE configuration option
Used to specify whether the OSL mutex interfaces should be used, or binary semaphores instead. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/acpi')
-rw-r--r--include/acpi/acpiosxf.h13
-rw-r--r--include/acpi/actypes.h54
-rw-r--r--include/acpi/platform/acenv.h35
-rw-r--r--include/acpi/platform/aclinux.h1
4 files changed, 75 insertions, 28 deletions
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index b91440ac0d16..a62720a7edc0 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -121,8 +121,11 @@ acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
/*
- * Mutex primitives
+ * Mutex primitives. May be configured to use semaphores instead via
+ * ACPI_MUTEX_TYPE (see platform/acenv.h)
*/
+#if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
+
acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
void acpi_os_delete_mutex(acpi_mutex handle);
@@ -130,13 +133,7 @@ void acpi_os_delete_mutex(acpi_mutex handle);
acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
void acpi_os_release_mutex(acpi_mutex handle);
-
-/* Temporary macros for Mutex* interfaces, map to existing semaphore xfaces */
-
-#define acpi_os_create_mutex(out_handle) acpi_os_create_semaphore (1, 1, out_handle)
-#define acpi_os_delete_mutex(handle) (void) acpi_os_delete_semaphore (handle)
-#define acpi_os_acquire_mutex(handle,time) acpi_os_wait_semaphore (handle, 1, time)
-#define acpi_os_release_mutex(handle) (void) acpi_os_signal_semaphore (handle, 1)
+#endif
/*
* Memory allocation and mapping
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 20f6f9c5f21c..24b2cef5a13f 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -204,11 +204,10 @@ typedef u32 acpi_physical_address;
/*******************************************************************************
*
- * OS-dependent and compiler-dependent types
+ * OS-dependent types
*
* If the defaults below are not appropriate for the host system, they can
- * be defined in the compiler-specific or OS-specific header, and this will
- * take precedence.
+ * be defined in the OS-specific header, and this will take precedence.
*
******************************************************************************/
@@ -218,12 +217,6 @@ typedef u32 acpi_physical_address;
#define acpi_thread_id acpi_size
#endif
-/* Object returned from acpi_os_create_lock */
-
-#ifndef acpi_spinlock
-#define acpi_spinlock void *
-#endif
-
/* Flags for acpi_os_acquire_lock/acpi_os_release_lock */
#ifndef acpi_cpu_flags
@@ -240,6 +233,44 @@ typedef u32 acpi_physical_address;
#endif
#endif
+/*
+ * Synchronization objects - Mutexes, Semaphores, and spin_locks
+ */
+#if (ACPI_MUTEX_TYPE == ACPI_BINARY_SEMAPHORE)
+/*
+ * These macros are used if the host OS does not support a mutex object.
+ * Map the OSL Mutex interfaces to binary semaphores.
+ */
+#define acpi_mutex acpi_semaphore
+#define acpi_os_create_mutex(out_handle) acpi_os_create_semaphore (1, 1, out_handle)
+#define acpi_os_delete_mutex(handle) (void) acpi_os_delete_semaphore (handle)
+#define acpi_os_acquire_mutex(handle,time) acpi_os_wait_semaphore (handle, 1, time)
+#define acpi_os_release_mutex(handle) (void) acpi_os_signal_semaphore (handle, 1)
+#endif
+
+/* Configurable types for synchronization objects */
+
+#ifndef acpi_spinlock
+#define acpi_spinlock void *
+#endif
+
+#ifndef acpi_semaphore
+#define acpi_semaphore void *
+#endif
+
+#ifndef acpi_mutex
+#define acpi_mutex void *
+#endif
+
+/*******************************************************************************
+ *
+ * Compiler-dependent types
+ *
+ * If the defaults below are not appropriate for the host compiler, they can
+ * be defined in the compiler-specific header, and this will take precedence.
+ *
+ ******************************************************************************/
+
/* Use C99 uintptr_t for pointer casting if available, "void *" otherwise */
#ifndef acpi_uintptr_t
@@ -353,11 +384,6 @@ struct uint32_struct {
u32 hi;
};
-/* Synchronization objects */
-
-#define acpi_mutex void *
-#define acpi_semaphore void *
-
/*
* Acpi integer width. In ACPI version 1, integers are 32 bits. In ACPI
* version 2, integers are 64 bits. Note that this pertains to the ACPI integer
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index cbae39c728a5..e62f10d9a7d8 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -44,13 +44,26 @@
#ifndef __ACENV_H__
#define __ACENV_H__
-/*
+/* Types for ACPI_MUTEX_TYPE */
+
+#define ACPI_BINARY_SEMAPHORE 0
+#define ACPI_OSL_MUTEX 1
+
+/* Types for DEBUGGER_THREADING */
+
+#define DEBUGGER_SINGLE_THREADED 0
+#define DEBUGGER_MULTI_THREADED 1
+
+/******************************************************************************
+ *
* Configuration for ACPI tools and utilities
- */
+ *
+ *****************************************************************************/
+
#ifdef ACPI_LIBRARY
/*
* Note: The non-debug version of the acpi_library does not contain any
- * debug support, for minimimal size. The debug version uses ACPI_FULL_DEBUG
+ * debug support, for minimal size. The debug version uses ACPI_FULL_DEBUG
*/
#define ACPI_USE_LOCAL_CACHE
#endif
@@ -167,6 +180,19 @@
/*! [End] no source code translation !*/
+/******************************************************************************
+ *
+ * Miscellaneous configuration
+ *
+ *****************************************************************************/
+
+/*
+ * Are mutexes supported by the host? default is no, use binary semaphores.
+ */
+#ifndef ACPI_MUTEX_TYPE
+#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
+#endif
+
/*
* Debugger threading model
* Use single threaded if the entire subsystem is contained in an application
@@ -175,9 +201,6 @@
* By default the model is single threaded if ACPI_APPLICATION is set,
* multi-threaded if ACPI_APPLICATION is not set.
*/
-#define DEBUGGER_SINGLE_THREADED 0
-#define DEBUGGER_MULTI_THREADED 1
-
#ifndef DEBUGGER_THREADING
#ifdef ACPI_APPLICATION
#define DEBUGGER_THREADING DEBUGGER_SINGLE_THREADED
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 0515e754449d..3cabf888c8af 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -46,6 +46,7 @@
#define ACPI_USE_SYSTEM_CLIBRARY
#define ACPI_USE_DO_WHILE_0
+#define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE
#ifdef __KERNEL__