f6ca7de09c
There was a lot of duplication between architectures for the definition of threads and the "nanokernel" guts. These have been consolidated. Now, a common file kernel/unified/include/kernel_structs.h holds the common definitions. Architectures provide two files to complement it: kernel_arch_data.h and kernel_arch_func.h. The first one contains at least the struct _thread_arch and struct _kernel_arch data structures, as well as the struct _callee_saved and struct _caller_saved register layouts. The second file contains anything that needs what is provided by the common stuff in kernel_structs.h. Those two files are only meant to be included in kernel_structs.h in very specific locations. The thread data structure has been separated into three major parts: common struct _thread_base and struct k_thread, and arch-specific struct _thread_arch. The first and third ones are included in the second. The struct s_NANO data structure has been split into two: common struct _kernel and arch-specific struct _kernel_arch. The latter is included in the former. Offsets files have also changed: nano_offsets.h has been renamed kernel_offsets.h and is still included by the arch-specific offsets.c. Also, since the thread and kernel data structures are now made of sub-structures, offsets have to be added to make up the full offset. Some of these additions have been consolidated in shorter symbols, available from kernel/unified/include/offsets_short.h, which includes an arch-specific offsets_arch_short.h. Most of the code include offsets_short.h now instead of offsets.h. Change-Id: I084645cb7e6db8db69aeaaf162963fe157045d5a Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/*
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* Copyright (c) 2014-2016 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
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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 ARCv2 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
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* symbols" in the offsets.o module.
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*/
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#ifndef _kernel_arch_func__h_
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#define _kernel_arch_func__h_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if !defined(_ASMLANGUAGE)
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#ifdef CONFIG_CPU_ARCV2
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#include <v2/cache.h>
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#include <v2/irq.h>
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#endif
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static ALWAYS_INLINE void nanoArchInit(void)
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{
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_icache_setup();
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_irq_setup();
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}
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static ALWAYS_INLINE void
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_set_thread_return_value(struct k_thread *thread, unsigned int value)
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{
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thread->arch.return_value = value;
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}
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static ALWAYS_INLINE int _is_in_isr(void)
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{
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uint32_t act = _arc_v2_aux_reg_read(_ARC_V2_AUX_IRQ_ACT);
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#if CONFIG_IRQ_OFFLOAD
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/* Check if we're in a TRAP_S exception as well */
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if (_arc_v2_aux_reg_read(_ARC_V2_STATUS32) & _ARC_V2_STATUS32_AE &&
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_ARC_V2_ECR_VECTOR(_arc_v2_aux_reg_read(_ARC_V2_ECR)) == EXC_EV_TRAP
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) {
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return 1;
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}
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#endif
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return ((act & 0xffff) != 0);
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}
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/**
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*
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* @bried Indicates the interrupt number of the highest priority
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* active interrupt
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*
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* @return IRQ number
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*/
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static ALWAYS_INLINE int _INTERRUPT_CAUSE(void)
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{
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uint32_t irq_num = _arc_v2_aux_reg_read(_ARC_V2_ICAUSE);
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return irq_num;
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}
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extern void _thread_entry_wrapper(void);
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static inline void _IntLibInit(void)
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{
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/* nothing needed, here because the kernel requires it */
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}
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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_func__h_ */
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