bartoszek/zephyr
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
80a8cfc6b6
zephyr/include/arch/arc/arch.h
Flavio Ceolin 67ca176754 headers: Fix headers across the project 
Any word started with underscore followed by and uppercase letter or a
second underscore is a reserved word according with C99.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-09-17 15:49:26 -04:00

231 lines
6.8 KiB
C
Raw Blame History

/*
* 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 ZEPHYR_INCLUDE_ARCH_ARC_ARCH_H_
#define ZEPHYR_INCLUDE_ARCH_ARC_ARCH_H_
#include <generated_dts_board.h>
#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
#ifdef __cplusplus
extern "C" {
#endif
#if defined(CONFIG_MPU_STACK_GUARD) || defined(CONFIG_USERSPACE)
#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
#elif CONFIG_ARC_MPU_VER == 3
#define STACK_ALIGN 32
#else
#error "Unsupported MPU version"
#endif /* CONFIG_ARC_MPU_VER */
#else /* CONFIG_ARC_CORE_MPU */
#error "Requires to enable MPU"
#endif
#else /* CONFIG_MPU_STACK_GUARD || CONFIG_USERSPACE */
#define STACK_ALIGN 4
#endif
#if defined(CONFIG_MPU_STACK_GUARD)
#if CONFIG_ARC_MPU_VER == 2
#define STACK_GUARD_SIZE 2048
#elif CONFIG_ARC_MPU_VER == 3
#define STACK_GUARD_SIZE 32
#endif
#else /* CONFIG_MPU_STACK_GUARD */
#define STACK_GUARD_SIZE 0
#endif /* CONFIG_MPU_STACK_GUARD */
#define STACK_SIZE_ALIGN(x) max(STACK_ALIGN, x)
/**
* @brief Calculate power of two ceiling for a buffer size input
*
*/
#define POW2_CEIL(x) ((1 << (31 - __builtin_clz(x))) < x ? \
1 << (31 - __builtin_clz(x) + 1) : \
1 << (31 - __builtin_clz(x)))
#if defined(CONFIG_USERSPACE)
#if CONFIG_ARC_MPU_VER == 2
#define _ARCH_THREAD_STACK_DEFINE(sym, size) \
struct _k_thread_stack_element __kernel_noinit \
__aligned(POW2_CEIL(STACK_SIZE_ALIGN(size))) \
sym[POW2_CEIL(STACK_SIZE_ALIGN(size)) + \
+ STACK_GUARD_SIZE + CONFIG_PRIVILEGED_STACK_SIZE]
#define _ARCH_THREAD_STACK_LEN(size) \
(POW2_CEIL(STACK_SIZE_ALIGN(size)) + \
max(POW2_CEIL(STACK_SIZE_ALIGN(size)), \
POW2_CEIL(STACK_GUARD_SIZE + CONFIG_PRIVILEGED_STACK_SIZE)))
#define _ARCH_THREAD_STACK_ARRAY_DEFINE(sym, nmemb, size) \
struct _k_thread_stack_element __kernel_noinit \
__aligned(POW2_CEIL(STACK_SIZE_ALIGN(size))) \
sym[nmemb][_ARCH_THREAD_STACK_LEN(size)]
#define _ARCH_THREAD_STACK_MEMBER(sym, size) \
struct _k_thread_stack_element \
__aligned(POW2_CEIL(STACK_SIZE_ALIGN(size))) \
sym[POW2_CEIL(size) + \
+ STACK_GUARD_SIZE + CONFIG_PRIVILEGED_STACK_SIZE]
#elif CONFIG_ARC_MPU_VER == 3
#define _ARCH_THREAD_STACK_DEFINE(sym, size) \
struct _k_thread_stack_element __kernel_noinit __aligned(STACK_ALIGN) \
sym[size + \
+ STACK_GUARD_SIZE + CONFIG_PRIVILEGED_STACK_SIZE]
#define _ARCH_THREAD_STACK_LEN(size) \
((size) + STACK_GUARD_SIZE + CONFIG_PRIVILEGED_STACK_SIZE)
#define _ARCH_THREAD_STACK_ARRAY_DEFINE(sym, nmemb, size) \
struct _k_thread_stack_element __kernel_noinit __aligned(STACK_ALIGN) \
sym[nmemb][_ARCH_THREAD_STACK_LEN(size)]
#define _ARCH_THREAD_STACK_MEMBER(sym, size) \
struct _k_thread_stack_element __aligned(STACK_ALIGN) \
sym[size + \
+ STACK_GUARD_SIZE + CONFIG_PRIVILEGED_STACK_SIZE]
#endif /* CONFIG_ARC_MPU_VER */
#define _ARCH_THREAD_STACK_SIZEOF(sym) \
(sizeof(sym) - CONFIG_PRIVILEGED_STACK_SIZE - STACK_GUARD_SIZE)
#define _ARCH_THREAD_STACK_BUFFER(sym) \
((char *)(sym))
#else /* CONFIG_USERSPACE */
#define _ARCH_THREAD_STACK_DEFINE(sym, size) \
struct _k_thread_stack_element __kernel_noinit __aligned(STACK_ALIGN) \
sym[size + STACK_GUARD_SIZE]
#define _ARCH_THREAD_STACK_LEN(size) ((size) + STACK_GUARD_SIZE)
#define _ARCH_THREAD_STACK_ARRAY_DEFINE(sym, nmemb, size) \
struct _k_thread_stack_element __kernel_noinit __aligned(STACK_ALIGN) \
sym[nmemb][_ARCH_THREAD_STACK_LEN(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))
#endif /* CONFIG_USERSPACE */
#ifdef CONFIG_USERSPACE
#ifdef CONFIG_ARC_MPU
#ifndef _ASMLANGUAGE
#include <arch/arc/v2/mpu/arc_mpu.h>
#define K_MEM_PARTITION_P_NA_U_NA AUX_MPU_RDP_N
#define K_MEM_PARTITION_P_RW_U_RW (AUX_MPU_RDP_UW | AUX_MPU_RDP_UR | \
AUX_MPU_RDP_KW | AUX_MPU_RDP_KR)
#define K_MEM_PARTITION_P_RW_U_RO (AUX_MPU_RDP_UR | \
AUX_MPU_RDP_KW | AUX_MPU_RDP_KR)
#define K_MEM_PARTITION_P_RW_U_NA (AUX_MPU_RDP_KW | AUX_MPU_RDP_KR)
#define K_MEM_PARTITION_P_RO_U_RO (AUX_MPU_RDP_UR | AUX_MPU_RDP_KR)
#define K_MEM_PARTITION_P_RO_U_NA (AUX_MPU_RDP_KR)
/* Execution-allowed attributes */
#define K_MEM_PARTITION_P_RWX_U_RWX (AUX_MPU_RDP_UW | AUX_MPU_RDP_UR | \
AUX_MPU_RDP_KW | AUX_MPU_RDP_KR | \
AUX_MPU_RDP_KE | AUX_MPU_RDP_UE)
#define K_MEM_PARTITION_P_RWX_U_RX (AUX_MPU_RDP_UR | \
AUX_MPU_RDP_KW | AUX_MPU_RDP_KR | \
AUX_MPU_RDP_KE | AUX_MPU_RDP_UE)
#define K_MEM_PARTITION_P_RX_U_RX (AUX_MPU_RDP_UR | \
AUX_MPU_RDP_KR | \
AUX_MPU_RDP_KE | AUX_MPU_RDP_UE)
#define K_MEM_PARTITION_IS_WRITABLE(attr) \
({ \
int __is_writable__; \
attr &= (AUX_MPU_RDP_UW | AUX_MPU_RDP_KW); \
switch (attr) { \
case (AUX_MPU_RDP_UW | AUX_MPU_RDP_KW): \
case AUX_MPU_RDP_UW: \
case AUX_MPU_RDP_KW: \
__is_writable__ = 1; \
break; \
default: \
__is_writable__ = 0; \
break; \
} \
__is_writable__; \
})
#define K_MEM_PARTITION_IS_EXECUTABLE(attr) \
((attr) & (AUX_MPU_RDP_KE | AUX_MPU_RDP_UE))
#endif /* _ASMLANGUAGE */
#if CONFIG_ARC_MPU_VER == 2
#define _ARCH_MEM_PARTITION_ALIGN_CHECK(start, size) \
BUILD_ASSERT_MSG(!(((size) & ((size) - 1))) && (size) >= STACK_ALIGN \
&& !((u32_t)(start) & ((size) - 1)), \
"the size of the partition must be power of 2" \
" and greater than or equal to the mpu adddress alignment." \
"start address of the partition must align with size.")
#elif CONFIG_ARC_MPU_VER == 3
#define _ARCH_MEM_PARTITION_ALIGN_CHECK(start, size) \
BUILD_ASSERT_MSG((size) % STACK_ALIGN == 0 && (size) >= STACK_ALIGN \
&& (u32_t)(start) % STACK_ALIGN == 0, \
"the size of the partition must align with 32" \
" and greater than or equal to 32." \
"start address of the partition must align with 32.")
#endif
#endif /* CONFIG_ARC_MPU*/
#endif /* CONFIG_USERSPACE */
#ifndef _ASMLANGUAGE
/* Typedef for the k_mem_partition attribute*/
typedef u32_t k_mem_partition_attr_t;
#endif /* _ASMLANGUAGE */
#ifdef __cplusplus
}
#endif
#endif /* ZEPHYR_INCLUDE_ARCH_ARC_ARCH_H_ */
Reference in New Issue View Git Blame Copy Permalink