linux-imx

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

/******************************************************************************

 *

 * Module Name: utalloc - local memory allocation routines

 *

 * Copyright (C) 2000 - 2019, Intel Corp.

 *

 *****************************************************************************/

​

#include <acpi/acpi.h>

#include "accommon.h"

#include "acdebug.h"

​

#define _COMPONENT          ACPI_UTILITIES

ACPI_MODULE_NAME("utalloc")

​

#if !defined (USE_NATIVE_ALLOCATE_ZEROED)

/*******************************************************************************

 *

 * 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);

}

​

#endif              /* !USE_NATIVE_ALLOCATE_ZEROED */

​

/*******************************************************************************

 *

 * 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);

    }