1 files changed, 383 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
new file mode 100644
index 00000000000..7580f6b3069
--- /dev/null
+++ b/drivers/acpi/acpica/utalloc.c
@@ -0,0 +1,383 @@
+/******************************************************************************
+ *
+ * Module Name: utalloc - local memory allocation routines
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2008, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acdebug.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utalloc")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_create_caches
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Create all local caches
+ *
+ ******************************************************************************/
+acpi_status acpi_ut_create_caches(void)
+{
+        acpi_status status;
+
+        /* Object Caches, for frequently used objects */
+
+        status =
+            acpi_os_create_cache("Acpi-Namespace",
+                                 sizeof(struct acpi_namespace_node),
+                                 ACPI_MAX_NAMESPACE_CACHE_DEPTH,
+                                 &acpi_gbl_namespace_cache);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        status =
+            acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state),
+                                 ACPI_MAX_STATE_CACHE_DEPTH,
+                                 &acpi_gbl_state_cache);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        status =
+            acpi_os_create_cache("Acpi-Parse",
+                                 sizeof(struct acpi_parse_obj_common),
+                                 ACPI_MAX_PARSE_CACHE_DEPTH,
+                                 &acpi_gbl_ps_node_cache);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        status =
+            acpi_os_create_cache("Acpi-ParseExt",
+                                 sizeof(struct acpi_parse_obj_named),
+                                 ACPI_MAX_EXTPARSE_CACHE_DEPTH,
+                                 &acpi_gbl_ps_node_ext_cache);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        status =
+            acpi_os_create_cache("Acpi-Operand",
+                                 sizeof(union acpi_operand_object),
+                                 ACPI_MAX_OBJECT_CACHE_DEPTH,
+                                 &acpi_gbl_operand_cache);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+        /* Memory allocation lists */
+
+        status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        status =
+            acpi_ut_create_list("Acpi-Namespace",
+                                sizeof(struct acpi_namespace_node),
+                                &acpi_gbl_ns_node_list);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+#endif
+
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_delete_caches
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Purge and delete all local caches
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_delete_caches(void)
+{
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+        char buffer[7];
+
+        if (acpi_gbl_display_final_mem_stats) {
+                ACPI_STRCPY(buffer, "MEMORY");
+                (void)acpi_db_display_statistics(buffer);
+        }
+#endif
+
+        (void)acpi_os_delete_cache(acpi_gbl_namespace_cache);
+        acpi_gbl_namespace_cache = NULL;
+
+        (void)acpi_os_delete_cache(acpi_gbl_state_cache);
+        acpi_gbl_state_cache = NULL;
+
+        (void)acpi_os_delete_cache(acpi_gbl_operand_cache);
+        acpi_gbl_operand_cache = NULL;
+
+        (void)acpi_os_delete_cache(acpi_gbl_ps_node_cache);
+        acpi_gbl_ps_node_cache = NULL;
+
+        (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache);
+        acpi_gbl_ps_node_ext_cache = NULL;
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+
+        /* Debug only - display leftover memory allocation, if any */
+
+        acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL);
+
+        /* Free memory lists */
+
+        ACPI_FREE(acpi_gbl_global_list);
+        acpi_gbl_global_list = NULL;
+
+        ACPI_FREE(acpi_gbl_ns_node_list);
+        acpi_gbl_ns_node_list = NULL;
+#endif
+
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_validate_buffer
+ *
+ * PARAMETERS:  Buffer              - Buffer descriptor to be validated
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_validate_buffer(struct acpi_buffer * buffer)
+{
+
+        /* Obviously, the structure pointer must be valid */
+
+        if (!buffer) {
+                return (AE_BAD_PARAMETER);
+        }
+
+        /* Special semantics for the length */
+
+        if ((buffer->length == ACPI_NO_BUFFER) ||
+            (buffer->length == ACPI_ALLOCATE_BUFFER) ||
+            (buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) {
+                return (AE_OK);
+        }
+
+        /* Length is valid, the buffer pointer must be also */
+
+        if (!buffer->pointer) {
+                return (AE_BAD_PARAMETER);
+        }
+
+        return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_initialize_buffer
+ *
+ * PARAMETERS:  Buffer              - Buffer to be validated
+ *              required_length     - Length needed
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Validate that the buffer is of the required length or
+ *              allocate a new buffer. Returned buffer is always zeroed.
+ *
+ ******************************************************************************/
+
+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);
+}
+
+#ifdef NOT_USED_BY_LINUX
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_allocate
+ *
+ * PARAMETERS:  Size                - Size of the allocation
+ *              Component           - Component type of caller
+ *              Module              - Source file name of caller
+ *              Line                - Line number of caller
+ *
+ * RETURN:      Address of the allocated memory on success, NULL on failure.
+ *
+ * DESCRIPTION: Subsystem equivalent of malloc.
+ *
+ ******************************************************************************/
+
+void *acpi_ut_allocate(acpi_size size,
+                       u32 component, const 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);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_allocate_zeroed
+ *
+ * PARAMETERS:  Size                - Size of the allocation
+ *              Component           - Component type of caller
+ *              Module              - Source file name of caller
+ *              Line                - Line number of caller
+ *
+ * RETURN:      Address of the allocated memory on success, NULL on failure.
+ *
+ * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
+ *
+ ******************************************************************************/
+
+void *acpi_ut_allocate_zeroed(acpi_size size,
+                              u32 component, const char *module, u32 line)
+{
+        void *allocation;
+
+        ACPI_FUNCTION_ENTRY();
+
+        allocation = acpi_ut_allocate(size, component, module, line);
+        if (allocation) {
+
+                /* Clear the memory block */
+
+                ACPI_MEMSET(allocation, 0, size);
+        }
+
+        return (allocation);
+}
+#endif