void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line)
{
void *allocation;
ACPI_FUNCTION_TRACE_U32(ut_allocate, size);
/* Check for an inadvertent size of zero bytes */
if (!size) {
ACPI_WARNING((module, line,
"Attempt to allocate zero bytes, allocating 1 byte"));
size = 1;
}
allocation = acpi_os_allocate(size);
if (!allocation) {
/* Report allocation error */
ACPI_WARNING((module, line,
"Could not allocate size %X", (u32) size));
return_PTR(NULL);
}
return_PTR(allocation);
}
acpi_status
acpi_vendor_resource_match(struct acpi_resource *resource, void *context)
{
struct acpi_vendor_info *info = (struct acpi_vendor_info *) context;
struct acpi_resource_vendor *vendor;
struct acpi_vendor_descriptor *descriptor;
u32 length;
if (resource->id != ACPI_RSTYPE_VENDOR)
return AE_OK;
vendor = (struct acpi_resource_vendor *) &resource->data;
descriptor = (struct acpi_vendor_descriptor *) vendor->reserved;
if (vendor->length <= sizeof(*info->descriptor) ||
descriptor->guid_id != info->descriptor->guid_id ||
efi_guidcmp(descriptor->guid, info->descriptor->guid))
return AE_OK;
length = vendor->length - sizeof(struct acpi_vendor_descriptor);
info->data = acpi_os_allocate(length);
if (!info->data)
return AE_NO_MEMORY;
memcpy(info->data, vendor->reserved + sizeof(struct acpi_vendor_descriptor), length);
info->length = length;
return AE_CTRL_TERMINATE;
}
void *
_cm_allocate (
u32 size,
u32 component,
NATIVE_CHAR *module,
u32 line)
{
void *address = NULL;
DEBUG_ONLY_MEMBERS (\
ACPI_STATUS status)
/* Check for an inadvertent size of zero bytes */
if (!size) {
_REPORT_ERROR (module, line, component,
("Cm_allocate: Attempt to allocate zero bytes\n"));
size = 1;
}
address = acpi_os_allocate (size);
if (!address) {
/* Report allocation error */
_REPORT_ERROR (module, line, component,
("Cm_allocate: Could not allocate size %X\n", size));
return (NULL);
}
return (address);
}
/*******************************************************************************
*
* FUNCTION: acpi_os_create_cache
*
* PARAMETERS: cache_name - Ascii name for the cache
* object_size - Size of each cached object
* max_depth - Maximum depth of the cache (in objects)
* return_cache - Where the new cache object is returned
*
* RETURN: Status
*
* DESCRIPTION: Create a cache object
*
******************************************************************************/
acpi_status
acpi_os_create_cache(char *cache_name,
u16 object_size,
u16 max_depth, struct acpi_memory_list **return_cache)
{
struct acpi_memory_list *cache;
ACPI_FUNCTION_ENTRY();
if (!cache_name || !return_cache || (object_size < 16)) {
return (AE_BAD_PARAMETER);
}
/* Create the cache object */
cache = acpi_os_allocate(sizeof(struct acpi_memory_list));
if (!cache) {
return (AE_NO_MEMORY);
}
/* Populate the cache object and return it */
ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list));
cache->list_name = cache_name;
cache->object_size = object_size;
cache->max_depth = max_depth;
*return_cache = cache;
return (AE_OK);
}
void *
acpi_os_callocate(u32 size)
{
void *ptr = acpi_os_allocate(size);
if (ptr)
memset(ptr, 0, size);
return ptr;
}
acpi_status
acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
acpi_size required_length)
{
acpi_status status = AE_OK;
switch (buffer->length) {
case ACPI_NO_BUFFER:
/* Set the exception and returned the required length */
status = AE_BUFFER_OVERFLOW;
break;
case ACPI_ALLOCATE_BUFFER:
/* Allocate a new buffer */
buffer->pointer = acpi_os_allocate(required_length);
if (!buffer->pointer) {
return (AE_NO_MEMORY);
}
/* Clear the buffer */
ACPI_MEMSET(buffer->pointer, 0, required_length);
break;
case ACPI_ALLOCATE_LOCAL_BUFFER:
/* Allocate a new buffer with local interface to allow tracking */
buffer->pointer = ACPI_ALLOCATE_ZEROED(required_length);
if (!buffer->pointer) {
return (AE_NO_MEMORY);
}
break;
default:
/* Existing buffer: Validate the size of the buffer */
if (buffer->length < required_length) {
status = AE_BUFFER_OVERFLOW;
break;
}
/* Clear the buffer */
ACPI_MEMSET(buffer->pointer, 0, required_length);
break;
}
buffer->length = required_length;
return (status);
}
/*******************************************************************************
*
* FUNCTION: acpi_os_allocate_zeroed
*
* PARAMETERS: size - Size of the allocation
*
* RETURN: Address of the allocated memory on success, NULL on failure.
*
* DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
* This is the default implementation. Can be overridden via the
* USE_NATIVE_ALLOCATE_ZEROED flag.
*
******************************************************************************/
void *acpi_os_allocate_zeroed(acpi_size size)
{
void *allocation;
ACPI_FUNCTION_ENTRY();
allocation = acpi_os_allocate(size);
if (allocation) {
/* Clear the memory block */
memset(allocation, 0, size);
}
return (allocation);
}
void *acpi_ut_allocate_and_track(acpi_size size,
u32 component, const char *module, u32 line)
{
struct acpi_debug_mem_block *allocation;
acpi_status status;
/* Check for an inadvertent size of zero bytes */
if (!size) {
ACPI_WARNING((module, line,
"Attempt to allocate zero bytes, allocating 1 byte"));
size = 1;
}
allocation =
acpi_os_allocate(size + sizeof(struct acpi_debug_mem_header));
if (!allocation) {
/* Report allocation error */
ACPI_WARNING((module, line,
"Could not allocate size %u", (u32)size));
return (NULL);
}
status =
acpi_ut_track_allocation(allocation, size, ACPI_MEM_MALLOC,
component, module, line);
if (ACPI_FAILURE(status)) {
acpi_os_free(allocation);
return (NULL);
}
acpi_gbl_global_list->total_allocated++;
acpi_gbl_global_list->total_size += (u32)size;
acpi_gbl_global_list->current_total_size += (u32)size;
if (acpi_gbl_global_list->current_total_size >
acpi_gbl_global_list->max_occupied) {
acpi_gbl_global_list->max_occupied =
acpi_gbl_global_list->current_total_size;
}
return ((void *)&allocation->user_space);
}
/*
* Allocate the memory for a spinlock and initialize it.
*/
acpi_status
acpi_os_create_lock (
acpi_handle *out_handle)
{
spinlock_t *lock_ptr;
ACPI_FUNCTION_TRACE ("os_create_lock");
lock_ptr = acpi_os_allocate(sizeof(spinlock_t));
spin_lock_init(lock_ptr);
ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Creating spinlock[%p].\n", lock_ptr));
*out_handle = lock_ptr;
return_ACPI_STATUS (AE_OK);
}
acpi_status
acpi_ut_create_list(const char *list_name,
u16 object_size, struct acpi_memory_list **return_cache)
{
struct acpi_memory_list *cache;
cache = acpi_os_allocate(sizeof(struct acpi_memory_list));
if (!cache) {
return (AE_NO_MEMORY);
}
memset(cache, 0, sizeof(struct acpi_memory_list));
cache->list_name = list_name;
cache->object_size = object_size;
*return_cache = cache;
return (AE_OK);
}
acpi_status
acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle)
{
struct semaphore *sem = NULL;
sem = acpi_os_allocate(sizeof(struct semaphore));
if (!sem)
return AE_NO_MEMORY;
memset(sem, 0, sizeof(struct semaphore));
sema_init(sem, initial_units);
*handle = (acpi_handle *) sem;
ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Creating semaphore[%p|%d].\n",
*handle, initial_units));
return AE_OK;
}
acpi_status
acpi_os_create_semaphore(
u32 max_units,
u32 initial_units,
acpi_handle *handle)
{
sem_id *sem = NULL;
ACPI_FUNCTION_TRACE ("os_create_semaphore");
sem = acpi_os_allocate(sizeof(sem_id));
if (!sem)
return_ACPI_STATUS (AE_NO_MEMORY);
memset(sem, 0, sizeof(sem_id));
*sem = create_semaphore( "acpi_semaphore", initial_units, 0 );
*handle = (acpi_handle*)sem;
ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Creating semaphore[%p|%d].\n", *handle, initial_units));
return_ACPI_STATUS (AE_OK);
}
acpi_status
acpi_os_create_semaphore(u32 max_units,
u32 initial_units, acpi_handle *out_handle)
{
sem_t *sem;
if (!out_handle) {
return (AE_BAD_PARAMETER);
}
#ifdef __APPLE__
{
char *semaphore_name = tmpnam(NULL);
sem =
sem_open(semaphore_name, O_EXCL | O_CREAT, 0755,
initial_units);
if (!sem) {
return (AE_NO_MEMORY);
}
sem_unlink(semaphore_name); /* This just deletes the name */
}
#else
sem = acpi_os_allocate(sizeof(sem_t));
if (!sem) {
return (AE_NO_MEMORY);
}
if (sem_init(sem, 0, initial_units) == -1) {
acpi_os_free(sem);
return (AE_BAD_PARAMETER);
}
#endif
*out_handle = (acpi_handle)sem;
return (AE_OK);
}
acpi_status
acpi_ut_initialize_buffer(struct acpi_buffer *buffer, acpi_size required_length)
{
acpi_size input_buffer_length;
/* Parameter validation */
if (!buffer || !required_length) {
return (AE_BAD_PARAMETER);
}
/*
* Buffer->Length is used as both an input and output parameter. Get the
* input actual length and set the output required buffer length.
*/
input_buffer_length = buffer->length;
buffer->length = required_length;
/*
* The input buffer length contains the actual buffer length, or the type
* of buffer to be allocated by this routine.
*/
switch (input_buffer_length) {
case ACPI_NO_BUFFER:
/* Return the exception (and the required buffer length) */
return (AE_BUFFER_OVERFLOW);
case ACPI_ALLOCATE_BUFFER:
/*
* Allocate a new buffer. We directectly call acpi_os_allocate here to
* purposefully bypass the (optionally enabled) internal allocation
* tracking mechanism since we only want to track internal
* allocations. Note: The caller should use acpi_os_free to free this
* buffer created via ACPI_ALLOCATE_BUFFER.
*/
buffer->pointer = acpi_os_allocate(required_length);
break;
case ACPI_ALLOCATE_LOCAL_BUFFER:
/* Allocate a new buffer with local interface to allow tracking */
buffer->pointer = ACPI_ALLOCATE(required_length);
break;
default:
/* Existing buffer: Validate the size of the buffer */
if (input_buffer_length < required_length) {
return (AE_BUFFER_OVERFLOW);
}
break;
}
/* Validate allocation from above or input buffer pointer */
if (!buffer->pointer) {
return (AE_NO_MEMORY);
}
/* Have a valid buffer, clear it */
memset(buffer->pointer, 0, required_length);
return (AE_OK);
}
static acpi_status
acpi_ut_read_table(FILE * fp,
struct acpi_table_header **table, u32 *table_length)
{
struct acpi_table_header table_header;
u32 actual;
acpi_status status;
u32 file_size;
u8 standard_header = TRUE;
s32 count;
/* Get the file size */
file_size = cm_get_file_size(fp);
if (file_size == ACPI_UINT32_MAX) {
return (AE_ERROR);
}
if (file_size < 4) {
return (AE_BAD_HEADER);
}
/* Read the signature */
fseek(fp, 0, SEEK_SET);
count = fread(&table_header, 1, sizeof(struct acpi_table_header), fp);
if (count != sizeof(struct acpi_table_header)) {
acpi_os_printf("Could not read the table header\n");
return (AE_BAD_HEADER);
}
/* The RSDP table does not have standard ACPI header */
if (ACPI_VALIDATE_RSDP_SIG(table_header.signature)) {
*table_length = file_size;
standard_header = FALSE;
} else {
#if 0
/* Validate the table header/length */
status = acpi_tb_validate_table_header(&table_header);
if (ACPI_FAILURE(status)) {
acpi_os_printf("Table header is invalid!\n");
return (status);
}
#endif
/* File size must be at least as long as the Header-specified length */
if (table_header.length > file_size) {
acpi_os_printf
("TableHeader length [0x%X] greater than the input file size [0x%X]\n",
table_header.length, file_size);
#ifdef ACPI_ASL_COMPILER
acpi_os_printf("File is corrupt or is ASCII text -- "
"it must be a binary file\n");
#endif
return (AE_BAD_HEADER);
}
#ifdef ACPI_OBSOLETE_CODE
/* We only support a limited number of table types */
if (!ACPI_COMPARE_NAME
((char *)table_header.signature, ACPI_SIG_DSDT)
&& !ACPI_COMPARE_NAME((char *)table_header.signature,
ACPI_SIG_PSDT)
&& !ACPI_COMPARE_NAME((char *)table_header.signature,
ACPI_SIG_SSDT)) {
acpi_os_printf
("Table signature [%4.4s] is invalid or not supported\n",
(char *)table_header.signature);
ACPI_DUMP_BUFFER(&table_header,
sizeof(struct acpi_table_header));
return (AE_ERROR);
}
#endif
*table_length = table_header.length;
}
/* Allocate a buffer for the table */
*table = acpi_os_allocate((size_t) file_size);
if (!*table) {
acpi_os_printf
("Could not allocate memory for ACPI table %4.4s (size=0x%X)\n",
table_header.signature, *table_length);
return (AE_NO_MEMORY);
}
/* Get the rest of the table */
fseek(fp, 0, SEEK_SET);
actual = fread(*table, 1, (size_t) file_size, fp);
if (actual == file_size) {
if (standard_header) {
/* Now validate the checksum */
status = acpi_tb_verify_checksum((void *)*table,
ACPI_CAST_PTR(struct
acpi_table_header,
*table)->
length);
if (status == AE_BAD_CHECKSUM) {
status =
acpi_ut_check_text_mode_corruption((u8 *)
*table,
file_size,
(*table)->
length);
return (status);
}
}
return (AE_OK);
}
if (actual > 0) {
acpi_os_printf("Warning - reading table, asked for %X got %X\n",
file_size, actual);
return (AE_OK);
}
acpi_os_printf("Error - could not read the table file\n");
acpi_os_free(*table);
*table = NULL;
*table_length = 0;
return (AE_ERROR);
}
acpi_status
acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
acpi_size required_length)
{
acpi_size input_buffer_length;
/* Parameter validation */
if (!buffer || !required_length) {
return (AE_BAD_PARAMETER);
}
/*
* Buffer->Length is used as both an input and output parameter. Get the
* input actual length and set the output required buffer length.
*/
input_buffer_length = buffer->length;
buffer->length = required_length;
/*
* The input buffer length contains the actual buffer length, or the type
* of buffer to be allocated by this routine.
*/
switch (input_buffer_length) {
case ACPI_NO_BUFFER:
/* Return the exception (and the required buffer length) */
return (AE_BUFFER_OVERFLOW);
case ACPI_ALLOCATE_BUFFER:
/* Allocate a new buffer */
buffer->pointer = acpi_os_allocate(required_length);
break;
case ACPI_ALLOCATE_LOCAL_BUFFER:
/* Allocate a new buffer with local interface to allow tracking */
buffer->pointer = ACPI_ALLOCATE(required_length);
break;
default:
/* Existing buffer: Validate the size of the buffer */
if (input_buffer_length < required_length) {
return (AE_BUFFER_OVERFLOW);
}
break;
}
/* Validate allocation from above or input buffer pointer */
if (!buffer->pointer) {
return (AE_NO_MEMORY);
}
/* Have a valid buffer, clear it */
ACPI_MEMSET(buffer->pointer, 0, required_length);
return (AE_OK);
}
acpi_status acpi_initialize_debugger(void)
{
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_initialize_debugger);
/* Init globals */
acpi_gbl_db_buffer = NULL;
acpi_gbl_db_filename = NULL;
acpi_gbl_db_output_to_file = FALSE;
acpi_gbl_db_debug_level = ACPI_LV_VERBOSITY2;
acpi_gbl_db_console_debug_level = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES;
acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
acpi_gbl_db_opt_no_ini_methods = FALSE;
acpi_gbl_db_buffer = acpi_os_allocate(ACPI_DEBUG_BUFFER_SIZE);
if (!acpi_gbl_db_buffer) {
return_ACPI_STATUS(AE_NO_MEMORY);
}
memset(acpi_gbl_db_buffer, 0, ACPI_DEBUG_BUFFER_SIZE);
/* Initial scope is the root */
acpi_gbl_db_scope_buf[0] = AML_ROOT_PREFIX;
acpi_gbl_db_scope_buf[1] = 0;
acpi_gbl_db_scope_node = acpi_gbl_root_node;
/* Initialize user commands loop */
acpi_gbl_db_terminate_loop = FALSE;
/*
* If configured for multi-thread support, the debug executor runs in
* a separate thread so that the front end can be in another address
* space, environment, or even another machine.
*/
if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) {
/* These were created with one unit, grab it */
status = acpi_os_acquire_mutex(acpi_gbl_db_command_complete,
ACPI_WAIT_FOREVER);
if (ACPI_FAILURE(status)) {
acpi_os_printf("Could not get debugger mutex\n");
return_ACPI_STATUS(status);
}
status = acpi_os_acquire_mutex(acpi_gbl_db_command_ready,
ACPI_WAIT_FOREVER);
if (ACPI_FAILURE(status)) {
acpi_os_printf("Could not get debugger mutex\n");
return_ACPI_STATUS(status);
}
/* Create the debug execution thread to execute commands */
acpi_gbl_db_threads_terminated = FALSE;
status = acpi_os_execute(OSL_DEBUGGER_MAIN_THREAD,
acpi_db_execute_thread, NULL);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Could not start debugger thread"));
acpi_gbl_db_threads_terminated = TRUE;
return_ACPI_STATUS(status);
}
} else {
acpi_gbl_db_thread_id = acpi_os_get_thread_id();
}
return_ACPI_STATUS(AE_OK);
}