| /* |
| * Copyright (c) 2013-2016 Wind River Systems, Inc. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Private kernel definitions (ARM) |
| * |
| * This file contains private kernel structures definitions and various |
| * other definitions for the ARM Cortex-M3 processor architecture. |
| * |
| * This file is also included by assembly language files which must #define |
| * _ASMLANGUAGE before including this header file. Note that kernel |
| * assembly source files obtains structure offset values via "absolute symbols" |
| * in the offsets.o module. |
| */ |
| |
| #ifndef _kernel_arch_data__h_ |
| #define _kernel_arch_data__h_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #include <toolchain.h> |
| #include <sections.h> |
| #include <arch/cpu.h> |
| |
| #ifndef _ASMLANGUAGE |
| #include <kernel.h> |
| #include <nano_internal.h> |
| #include <stdint.h> |
| #include <misc/dlist.h> |
| #include <atomic.h> |
| #endif |
| |
| #ifndef _ASMLANGUAGE |
| |
| struct _caller_saved { |
| /* |
| * Unused for Cortex-M, which automatically saves the necessary |
| * registers in its exception stack frame. |
| * |
| * For Cortex-A, this may be: |
| * |
| * uint32_t a1; // r0 |
| * uint32_t a2; // r1 |
| * uint32_t a3; // r2 |
| * uint32_t a4; // r3 |
| * uint32_t ip; // r12 |
| * uint32_t lr; // r14 |
| * uint32_t pc; // r15 |
| * uint32_t xpsr; |
| */ |
| }; |
| |
| typedef struct _caller_saved _caller_saved_t; |
| |
| struct _callee_saved { |
| uint32_t v1; /* r4 */ |
| uint32_t v2; /* r5 */ |
| uint32_t v3; /* r6 */ |
| uint32_t v4; /* r7 */ |
| uint32_t v5; /* r8 */ |
| uint32_t v6; /* r9 */ |
| uint32_t v7; /* r10 */ |
| uint32_t v8; /* r11 */ |
| uint32_t psp; /* r13 */ |
| }; |
| |
| typedef struct _callee_saved _callee_saved_t; |
| |
| typedef struct __esf _esf_t; |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| /* stacks */ |
| |
| #define STACK_ROUND_UP(x) ROUND_UP(x, STACK_ALIGN_SIZE) |
| #define STACK_ROUND_DOWN(x) ROUND_DOWN(x, STACK_ALIGN_SIZE) |
| |
| #ifdef CONFIG_CPU_CORTEX_M |
| #include <cortex_m/stack.h> |
| #include <cortex_m/exc.h> |
| #endif |
| |
| #ifndef _ASMLANGUAGE |
| |
| #ifdef CONFIG_FLOAT |
| struct _preempt_float { |
| float s16; |
| float s17; |
| float s18; |
| float s19; |
| float s20; |
| float s21; |
| float s22; |
| float s23; |
| float s24; |
| float s25; |
| float s26; |
| float s27; |
| float s28; |
| float s29; |
| float s30; |
| float s31; |
| }; |
| #endif |
| |
| struct _thread_arch { |
| |
| /* interrupt locking key */ |
| uint32_t basepri; |
| |
| /* r0 in stack frame cannot be written to reliably */ |
| uint32_t swap_return_value; |
| |
| #ifdef CONFIG_FLOAT |
| /* |
| * No cooperative floating point register set structure exists for |
| * the Cortex-M as it automatically saves the necessary registers |
| * in its exception stack frame. |
| */ |
| struct _preempt_float preempt_float; |
| #endif |
| }; |
| |
| typedef struct _thread_arch _thread_arch_t; |
| |
| struct _kernel_arch { |
| /* empty */ |
| }; |
| |
| typedef struct _kernel_arch _kernel_arch_t; |
| |
| #endif /* _ASMLANGUAGE */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* _kernel_arch_data__h_ */ |