eb1ef50b6b
There was a bunch of dead historical cruft floating around in the arch/xtensa tree, left over from older code versions. It's time to do a cleanup pass. This is entirely refactoring and size optimization, no behavior changes on any in-tree devices should be present. Among the more notable changes: + xtensa_context.h offered an elaborate API to deal with a stack frame and context layout that we no longer use. + xtensa_rtos.h was entirely dead code + xtensa_timer.h was a parallel abstraction layer implementing in the architecture layer what we're already doing in our timer driver. + The architecture thread structs (_callee_saved and _thread_arch) aren't used by current code, and had dead fields that were removed. Unfortunately for standards compliance and C++ compatibility it's not possible to leave an empty struct here, so they have a single byte field. + xtensa_api.h was really just some interrupt management inlines used by irq.h, so fold that code into the outer header. + Remove the stale assembly offsets. This architecture doesn't use that facility. All told, more than a thousand lines have been removed. Not bad. Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
32 lines
643 B
C
32 lines
643 B
C
/*
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* Copyright (c) 2021 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_ARCH_XTENSA_THREAD_H_
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#define ZEPHYR_INCLUDE_ARCH_XTENSA_THREAD_H_
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#ifndef _ASMLANGUAGE
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/* Xtensa doesn't use these structs, but Zephyr core requires they be
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* defined so they can be included in struct _thread_base. Dummy
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* field exists for sizeof compatibility with C++.
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*/
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struct _callee_saved {
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char dummy;
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};
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typedef struct _callee_saved _callee_saved_t;
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struct _thread_arch {
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char dummy;
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};
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typedef struct _thread_arch _thread_arch_t;
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#endif /* _ASMLANGUAGE */
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#endif /* ZEPHYR_INCLUDE_ARCH_XTENSA_THREAD_H_ */
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