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authorRobert Moore <robert.moore@intel.com>2005-06-24 00:00:00 -0400
committerLen Brown <len.brown@intel.com>2005-07-13 23:45:36 -0400
commit73459f73e5d1602c59ebec114fc45185521353c1 (patch)
tree56c2183e345784d2be09c2f5d2530cf36221c55e /include/acpi/platform
parent88ac00f5a841dcfc5c682000f4a6add0add8caac (diff)
ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com>
ACPICA 20050617: Moved the object cache operations into the OS interface layer (OSL) to allow the host OS to handle these operations if desired (for example, the Linux OSL will invoke the slab allocator). This support is optional; the compile time define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache code in the ACPI CA core. The new OSL interfaces are shown below. See utalloc.c for an example implementation, and acpiosxf.h for the exact interface definitions. Thanks to Alexey Starikovskiy. acpi_os_create_cache acpi_os_delete_cache acpi_os_purge_cache acpi_os_acquire_object acpi_os_release_object Modified the interfaces to acpi_os_acquire_lock and acpi_os_release_lock to return and restore a flags parameter. This fits better with many OS lock models. Note: the current execution state (interrupt handler or not) is no longer passed to these interfaces. If necessary, the OSL must determine this state by itself, a simple and fast operation. Thanks to Alexey Starikovskiy. Fixed a problem in the ACPI table handling where a valid XSDT was assumed present if the revision of the RSDP was 2 or greater. According to the ACPI specification, the XSDT is optional in all cases, and the table manager therefore now checks for both an RSDP >=2 and a valid XSDT pointer. Otherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain only the RSDT. Fixed an interpreter problem with the Mid() operator in the case of an input string where the resulting output string is of zero length. It now correctly returns a valid, null terminated string object instead of a string object with a null pointer. Fixed a problem with the control method argument handling to allow a store to an Arg object that already contains an object of type Device. The Device object is now correctly overwritten. Previously, an error was returned. ACPICA 20050624: Modified the new OSL cache interfaces to use ACPI_CACHE_T as the type for the host-defined cache object. This allows the OSL implementation to define and type this object in any manner desired, simplifying the OSL implementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for Linux, and should be defined in the OS-specific header file for other operating systems as required. Changed the interface to AcpiOsAcquireObject to directly return the requested object as the function return (instead of ACPI_STATUS.) This change was made for performance reasons, since this is the purpose of the interface in the first place. acpi_os_acquire_object is now similar to the acpi_os_allocate interface. Thanks to Alexey Starikovskiy. Modified the initialization sequence in acpi_initialize_subsystem to call the OSL interface acpi_osl_initialize first, before any local initialization. This change was required because the global initialization now calls OSL interfaces. Restructured the code base to split some files because of size and/or because the code logically belonged in a separate file. New files are listed below. utilities/utcache.c /* Local cache interfaces */ utilities/utmutex.c /* Local mutex support */ utilities/utstate.c /* State object support */ parser/psloop.c /* Main AML parse loop */ Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/acpi/platform')
-rw-r--r--include/acpi/platform/acenv.h19
-rw-r--r--include/acpi/platform/aclinux.h11
2 files changed, 22 insertions, 8 deletions
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index adf969efa51..aa63202e8d5 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -49,35 +49,38 @@
* Configuration for ACPI tools and utilities
*/
-#ifdef _ACPI_DUMP_APP
+#ifdef ACPI_LIBRARY
+#define ACPI_USE_LOCAL_CACHE
+#endif
+
+#ifdef ACPI_DUMP_APP
#ifndef MSDOS
#define ACPI_DEBUG_OUTPUT
#endif
#define ACPI_APPLICATION
#define ACPI_DISASSEMBLER
#define ACPI_NO_METHOD_EXECUTION
-#define ACPI_USE_SYSTEM_CLIBRARY
-#define ACPI_ENABLE_OBJECT_CACHE
#endif
-#ifdef _ACPI_EXEC_APP
+#ifdef ACPI_EXEC_APP
#undef DEBUGGER_THREADING
#define DEBUGGER_THREADING DEBUGGER_SINGLE_THREADED
#define ACPI_DEBUG_OUTPUT
#define ACPI_APPLICATION
#define ACPI_DEBUGGER
#define ACPI_DISASSEMBLER
-#define ACPI_USE_SYSTEM_CLIBRARY
-#define ACPI_ENABLE_OBJECT_CACHE
#endif
-#ifdef _ACPI_ASL_COMPILER
+#ifdef ACPI_ASL_COMPILER
#define ACPI_DEBUG_OUTPUT
#define ACPI_APPLICATION
#define ACPI_DISASSEMBLER
#define ACPI_CONSTANT_EVAL_ONLY
+#endif
+
+#ifdef ACPI_APPLICATION
#define ACPI_USE_SYSTEM_CLIBRARY
-#define ACPI_ENABLE_OBJECT_CACHE
+#define ACPI_USE_LOCAL_CACHE
#endif
/*
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index a3de0db8569..4fbc0fd52a2 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -62,6 +62,17 @@
#define ACPI_MACHINE_WIDTH BITS_PER_LONG
+/* Type(s) for the OSL */
+
+#ifdef ACPI_USE_LOCAL_CACHE
+#define acpi_cache_t struct acpi_memory_list
+#else
+#include <linux/slab.h>
+#define acpi_cache_t kmem_cache_t
+#endif
+
+
+
#else /* !__KERNEL__ */
#include <stdarg.h>