155 lines
3.2 KiB
C
155 lines
3.2 KiB
C
/*
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* Copyright (c) 2013-2016 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file
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* @brief Private kernel definitions (ARM)
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*
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* This file contains private kernel structures definitions and various
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* other definitions for the ARM Cortex-M3 processor architecture.
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*
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* This file is also included by assembly language files which must #define
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* _ASMLANGUAGE before including this header file. Note that kernel
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* assembly source files obtains structure offset values via "absolute symbols"
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* in the offsets.o module.
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*/
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#ifndef _kernel_arch_data__h_
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#define _kernel_arch_data__h_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <toolchain.h>
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#include <sections.h>
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#include <arch/cpu.h>
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#ifndef _ASMLANGUAGE
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#include <kernel.h>
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#include <nano_internal.h>
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#include <stdint.h>
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#include <misc/dlist.h>
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#include <atomic.h>
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#endif
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#ifndef _ASMLANGUAGE
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struct _caller_saved {
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/*
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* Unused for Cortex-M, which automatically saves the necessary
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* registers in its exception stack frame.
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*
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* For Cortex-A, this may be:
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*
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* uint32_t a1; // r0
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* uint32_t a2; // r1
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* uint32_t a3; // r2
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* uint32_t a4; // r3
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* uint32_t ip; // r12
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* uint32_t lr; // r14
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* uint32_t pc; // r15
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* uint32_t xpsr;
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*/
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};
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typedef struct _caller_saved _caller_saved_t;
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struct _callee_saved {
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uint32_t v1; /* r4 */
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uint32_t v2; /* r5 */
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uint32_t v3; /* r6 */
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uint32_t v4; /* r7 */
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uint32_t v5; /* r8 */
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uint32_t v6; /* r9 */
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uint32_t v7; /* r10 */
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uint32_t v8; /* r11 */
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uint32_t psp; /* r13 */
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};
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typedef struct _callee_saved _callee_saved_t;
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typedef struct __esf _esf_t;
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#endif /* _ASMLANGUAGE */
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/* stacks */
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#define STACK_ROUND_UP(x) ROUND_UP(x, STACK_ALIGN_SIZE)
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#define STACK_ROUND_DOWN(x) ROUND_DOWN(x, STACK_ALIGN_SIZE)
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#ifdef CONFIG_CPU_CORTEX_M
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#include <cortex_m/stack.h>
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#include <cortex_m/exc.h>
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#endif
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#ifndef _ASMLANGUAGE
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#ifdef CONFIG_FLOAT
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struct _preempt_float {
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float s16;
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float s17;
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float s18;
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float s19;
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float s20;
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float s21;
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float s22;
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float s23;
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float s24;
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float s25;
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float s26;
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float s27;
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float s28;
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float s29;
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float s30;
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float s31;
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};
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#endif
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struct _thread_arch {
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/* interrupt locking key */
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uint32_t basepri;
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/* r0 in stack frame cannot be written to reliably */
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uint32_t swap_return_value;
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#ifdef CONFIG_FLOAT
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/*
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* No cooperative floating point register set structure exists for
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* the Cortex-M as it automatically saves the necessary registers
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* in its exception stack frame.
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*/
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struct _preempt_float preempt_float;
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#endif
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};
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typedef struct _thread_arch _thread_arch_t;
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struct _kernel_arch {
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/* empty */
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};
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typedef struct _kernel_arch _kernel_arch_t;
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#endif /* _ASMLANGUAGE */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _kernel_arch_data__h_ */
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