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authorRobert Moore <robert.moore@intel.com>2005-07-29 15:15:00 -0700
committerLen Brown <len.brown@intel.com>2005-07-30 00:51:39 -0400
commit0c9938cc75057c0fca1af55a55dcfc2842436695 (patch)
treed18e809bf9e3811f20c609b6515d4d1b8520cfbc /drivers/acpi/utilities
parentdd8f39bbf5154cdbfd698fc70c66faba33eafa44 (diff)
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[ACPI] ACPICA 20050729 from Bob Moore
Implemented support to ignore an attempt to install/load a particular ACPI table more than once. Apparently there exists BIOS code that repeatedly attempts to load the same SSDT upon certain events. Thanks to Venkatesh Pallipadi. Restructured the main interface to the AML parser in order to correctly handle all exceptional conditions. This will prevent leakage of the OwnerId resource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some machines. Thanks to Alexey Starikovskiy. Support for "module level code" has been disabled in this version due to a number of issues that have appeared on various machines. The support can be enabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem compilation. When the issues are fully resolved, the code will be enabled by default again. Modified the internal functions for debug print support to define the FunctionName parameter as a (const char *) for compatibility with compiler built-in macros such as __FUNCTION__, etc. Linted the entire ACPICA source tree for both 32-bit and 64-bit. Signed-off-by: Robert Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/utilities')
-rw-r--r--drivers/acpi/utilities/utalloc.c4
-rw-r--r--drivers/acpi/utilities/utdebug.c77
-rw-r--r--drivers/acpi/utilities/utmisc.c58
3 files changed, 101 insertions, 38 deletions
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 5061c6f0ee6..78270f50e62 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -76,7 +76,7 @@ static acpi_status
acpi_ut_create_list (
char *list_name,
u16 object_size,
- acpi_handle *return_cache);
+ struct acpi_memory_list **return_cache);
#endif
@@ -428,7 +428,7 @@ static acpi_status
acpi_ut_create_list (
char *list_name,
u16 object_size,
- acpi_handle *return_cache)
+ struct acpi_memory_list **return_cache)
{
struct acpi_memory_list *cache;
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index 3d5fbc810b0..c27cbb7f5c5 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -55,6 +55,12 @@ static u32 acpi_gbl_prev_thread_id = 0xFFFFFFFF;
static char *acpi_gbl_fn_entry_str = "----Entry";
static char *acpi_gbl_fn_exit_str = "----Exit-";
+/* Local prototypes */
+
+static const char *
+acpi_ut_trim_function_name (
+ const char *function_name);
+
/*******************************************************************************
*
@@ -72,7 +78,7 @@ void
acpi_ut_init_stack_ptr_trace (
void)
{
- u32 current_sp;
+ u32 current_sp;
acpi_gbl_entry_stack_pointer = ACPI_PTR_DIFF (&current_sp, NULL);
@@ -95,7 +101,7 @@ void
acpi_ut_track_stack_ptr (
void)
{
- acpi_size current_sp;
+ acpi_size current_sp;
current_sp = ACPI_PTR_DIFF (&current_sp, NULL);
@@ -112,6 +118,43 @@ acpi_ut_track_stack_ptr (
/*******************************************************************************
*
+ * FUNCTION: acpi_ut_trim_function_name
+ *
+ * PARAMETERS: function_name - Ascii string containing a procedure name
+ *
+ * RETURN: Updated pointer to the function name
+ *
+ * DESCRIPTION: Remove the "Acpi" prefix from the function name, if present.
+ * This allows compiler macros such as __FUNCTION__ to be used
+ * with no change to the debug output.
+ *
+ ******************************************************************************/
+
+static const char *
+acpi_ut_trim_function_name (
+ const char *function_name)
+{
+
+ /* All Function names are longer than 4 chars, check is safe */
+
+ if (*(ACPI_CAST_PTR (u32, function_name)) == ACPI_FUNCTION_PREFIX1) {
+ /* This is the case where the original source has not been modified */
+
+ return (function_name + 4);
+ }
+
+ if (*(ACPI_CAST_PTR (u32, function_name)) == ACPI_FUNCTION_PREFIX2) {
+ /* This is the case where the source has been 'linuxized' */
+
+ return (function_name + 5);
+ }
+
+ return (function_name);
+}
+
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_ut_debug_print
*
* PARAMETERS: requested_debug_level - Requested debug print level
@@ -133,7 +176,7 @@ void ACPI_INTERNAL_VAR_XFACE
acpi_ut_debug_print (
u32 requested_debug_level,
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id,
char *format,
@@ -177,7 +220,7 @@ acpi_ut_debug_print (
}
acpi_os_printf ("[%02ld] %-22.22s: ",
- acpi_gbl_nesting_level, function_name);
+ acpi_gbl_nesting_level, acpi_ut_trim_function_name (function_name));
va_start (args, format);
acpi_os_vprintf (format, args);
@@ -208,7 +251,7 @@ void ACPI_INTERNAL_VAR_XFACE
acpi_ut_debug_print_raw (
u32 requested_debug_level,
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id,
char *format,
@@ -247,7 +290,7 @@ EXPORT_SYMBOL(acpi_ut_debug_print_raw);
void
acpi_ut_trace (
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id)
{
@@ -282,7 +325,7 @@ EXPORT_SYMBOL(acpi_ut_trace);
void
acpi_ut_trace_ptr (
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id,
void *pointer)
@@ -316,7 +359,7 @@ acpi_ut_trace_ptr (
void
acpi_ut_trace_str (
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id,
char *string)
@@ -351,7 +394,7 @@ acpi_ut_trace_str (
void
acpi_ut_trace_u32 (
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id,
u32 integer)
@@ -385,7 +428,7 @@ acpi_ut_trace_u32 (
void
acpi_ut_exit (
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id)
{
@@ -419,7 +462,7 @@ EXPORT_SYMBOL(acpi_ut_exit);
void
acpi_ut_status_exit (
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id,
acpi_status status)
@@ -463,7 +506,7 @@ EXPORT_SYMBOL(acpi_ut_status_exit);
void
acpi_ut_value_exit (
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id,
acpi_integer value)
@@ -499,7 +542,7 @@ EXPORT_SYMBOL(acpi_ut_value_exit);
void
acpi_ut_ptr_exit (
u32 line_number,
- char *function_name,
+ const char *function_name,
char *module_name,
u32 component_id,
u8 *ptr)
@@ -607,8 +650,8 @@ acpi_ut_dump_buffer (
}
/*
- * Print the ASCII equivalent characters
- * But watch out for the bad unprintable ones...
+ * Print the ASCII equivalent characters but watch out for the bad
+ * unprintable ones (printable chars are 0x20 through 0x7E)
*/
acpi_os_printf (" ");
for (j = 0; j < 16; j++) {
@@ -618,9 +661,7 @@ acpi_ut_dump_buffer (
}
buf_char = buffer[i + j];
- if ((buf_char > 0x1F && buf_char < 0x2E) ||
- (buf_char > 0x2F && buf_char < 0x61) ||
- (buf_char > 0x60 && buf_char < 0x7F)) {
+ if (ACPI_IS_PRINT (buf_char)) {
acpi_os_printf ("%c", buf_char);
}
else {
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index df715cd8910..1d350b302a3 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -56,7 +56,11 @@
*
* PARAMETERS: owner_id - Where the new owner ID is returned
*
- * DESCRIPTION: Allocate a table or method owner id
+ * RETURN: Status
+ *
+ * DESCRIPTION: Allocate a table or method owner ID. The owner ID is used to
+ * track objects created by the table or method, to be deleted
+ * when the method exits or the table is unloaded.
*
******************************************************************************/
@@ -71,6 +75,8 @@ acpi_ut_allocate_owner_id (
ACPI_FUNCTION_TRACE ("ut_allocate_owner_id");
+ /* Mutex for the global ID mask */
+
status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (status)) {
return_ACPI_STATUS (status);
@@ -81,7 +87,7 @@ acpi_ut_allocate_owner_id (
for (i = 0; i < 32; i++) {
if (!(acpi_gbl_owner_id_mask & (1 << i))) {
acpi_gbl_owner_id_mask |= (1 << i);
- *owner_id = (acpi_owner_id) i;
+ *owner_id = (acpi_owner_id) (i + 1);
goto exit;
}
}
@@ -93,6 +99,7 @@ acpi_ut_allocate_owner_id (
* they are released when a table is unloaded or a method completes
* execution.
*/
+ *owner_id = 0;
status = AE_OWNER_ID_LIMIT;
ACPI_REPORT_ERROR ((
"Could not allocate new owner_id (32 max), AE_OWNER_ID_LIMIT\n"));
@@ -107,40 +114,55 @@ exit:
*
* FUNCTION: acpi_ut_release_owner_id
*
- * PARAMETERS: owner_id - A previously allocated owner ID
+ * PARAMETERS: owner_id_ptr - Pointer to a previously allocated owner_iD
*
- * DESCRIPTION: Release a table or method owner id
+ * RETURN: None. No error is returned because we are either exiting a
+ * control method or unloading a table. Either way, we would
+ * ignore any error anyway.
+ *
+ * DESCRIPTION: Release a table or method owner ID. Valid IDs are 1 - 32
*
******************************************************************************/
-acpi_status
+void
acpi_ut_release_owner_id (
- acpi_owner_id owner_id)
+ acpi_owner_id *owner_id_ptr)
{
+ acpi_owner_id owner_id = *owner_id_ptr;
acpi_status status;
ACPI_FUNCTION_TRACE ("ut_release_owner_id");
+ /* Always clear the input owner_id (zero is an invalid ID) */
+
+ *owner_id_ptr = 0;
+
+ /* Zero is not a valid owner_iD */
+
+ if ((owner_id == 0) || (owner_id > 32)) {
+ ACPI_REPORT_ERROR (("Invalid owner_id: %2.2X\n", owner_id));
+ return_VOID;
+ }
+
+ /* Mutex for the global ID mask */
+
status = acpi_ut_acquire_mutex (ACPI_MTX_CACHES);
if (ACPI_FAILURE (status)) {
- return_ACPI_STATUS (status);
+ return_VOID;
}
- /* Free the owner ID */
+ owner_id--; /* Normalize to zero */
+
+ /* Free the owner ID only if it is valid */
if (acpi_gbl_owner_id_mask & (1 << owner_id)) {
acpi_gbl_owner_id_mask ^= (1 << owner_id);
}
- else {
- /* This owner_id has not been allocated */
-
- status = AE_NOT_EXIST;
- }
(void) acpi_ut_release_mutex (ACPI_MTX_CACHES);
- return_ACPI_STATUS (status);
+ return_VOID;
}
@@ -150,7 +172,7 @@ acpi_ut_release_owner_id (
*
* PARAMETERS: src_string - The source string to convert
*
- * RETURN: Converted src_string (same as input pointer)
+ * RETURN: None
*
* DESCRIPTION: Convert string to uppercase
*
@@ -158,7 +180,7 @@ acpi_ut_release_owner_id (
*
******************************************************************************/
-char *
+void
acpi_ut_strupr (
char *src_string)
{
@@ -169,7 +191,7 @@ acpi_ut_strupr (
if (!src_string) {
- return (NULL);
+ return;
}
/* Walk entire string, uppercasing the letters */
@@ -178,7 +200,7 @@ acpi_ut_strupr (
*string = (char) ACPI_TOUPPER (*string);
}
- return (src_string);
+ return;
}