blob: ebd9c811640048a0a0f1ea69f6131f656f18315d [file] [log] [blame]
/*
* Copyright (c) 2014 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief ARC specific kernel interface header
*
* This header contains the ARC specific kernel interface. It is
* included by the kernel interface architecture-abstraction header
* include/arch/cpu.h)
*/
#ifndef _ARC_ARCH__H_
#define _ARC_ARCH__H_
#ifdef __cplusplus
extern "C" {
#endif
/* APIs need to support non-byte addressable architectures */
#define OCTET_TO_SIZEOFUNIT(X) (X)
#define SIZEOFUNIT_TO_OCTET(X) (X)
#include <sw_isr_table.h>
#ifdef CONFIG_CPU_ARCV2
#include <arch/arc/v2/exc.h>
#include <arch/arc/v2/irq.h>
#include <arch/arc/v2/ffs.h>
#include <arch/arc/v2/error.h>
#include <arch/arc/v2/misc.h>
#include <arch/arc/v2/aux_regs.h>
#include <arch/arc/v2/arcv2_irq_unit.h>
#include <arch/arc/v2/asm_inline.h>
#include <arch/arc/v2/addr_types.h>
#endif
#if defined(CONFIG_MPU_STACK_GUARD)
#if defined(CONFIG_ARC_CORE_MPU)
#if CONFIG_ARC_MPU_VER == 2
/*
* The minimum MPU region of MPU v2 is 2048 bytes. The
* start address of MPU region should be aligned to the
* region size
*/
/* The STACK_GUARD_SIZE is the size of stack guard region */
#define STACK_ALIGN 2048
#define STACK_GUARD_SIZE 2048
#elif CONFIG_ARC_MPU_VER == 3
#define STACK_ALIGN 32
#define STACK_GUARD_SIZE 32
#endif
#else /* CONFIG_ARC_CORE_MPU */
#error "Unsupported STACK_ALIGN"
#endif
#else /* CONFIG_MPU_STACK_GUARD */
#define STACK_ALIGN 4
#define STACK_GUARD_SIZE 0
#endif
#define _ARCH_THREAD_STACK_DEFINE(sym, size) \
struct _k_thread_stack_element __noinit __aligned(STACK_ALIGN) \
sym[size+STACK_GUARD_SIZE]
#define _ARCH_THREAD_STACK_ARRAY_DEFINE(sym, nmemb, size) \
struct _k_thread_stack_element __noinit __aligned(STACK_ALIGN) \
sym[nmemb][size+STACK_GUARD_SIZE]
#define _ARCH_THREAD_STACK_MEMBER(sym, size) \
struct _k_thread_stack_element __aligned(STACK_ALIGN) \
sym[size+STACK_GUARD_SIZE]
#define _ARCH_THREAD_STACK_SIZEOF(sym) (sizeof(sym) - STACK_GUARD_SIZE)
#define _ARCH_THREAD_STACK_BUFFER(sym) ((char *)(sym + STACK_GUARD_SIZE))
#ifdef __cplusplus
}
#endif
#endif /* _ARC_ARCH__H_ */