3539c2fbb3
Split ARM and ARM64 architectures. Details: - CONFIG_ARM64 is decoupled from CONFIG_ARM (not a subset anymore) - Arch and include AArch64 files are in a dedicated directory (arch/arm64 and include/arch/arm64) - AArch64 boards and SoC are moved to soc/arm64 and boards/arm64 - AArch64-specific DTS files are moved to dts/arm64 - The A72 support for the bcm_vk/viper board is moved in the boards/bcm_vk/viper directory Signed-off-by: Carlo Caione <ccaione@baylibre.com>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
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* Copyright (c) 2020 Carlo Caione <ccaione@baylibre.com>
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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_ARM_AARCH64_THREAD_STACK_H_
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#define ZEPHYR_INCLUDE_ARCH_ARM_AARCH64_THREAD_STACK_H_
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#define ARCH_STACK_PTR_ALIGN 16
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#if CONFIG_USERSPACE
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#define Z_ARM64_STACK_BASE_ALIGN CONFIG_MMU_PAGE_SIZE
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#define Z_ARM64_STACK_SIZE_ALIGN CONFIG_MMU_PAGE_SIZE
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#else
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#define Z_ARM64_STACK_BASE_ALIGN ARCH_STACK_PTR_ALIGN
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#define Z_ARM64_STACK_SIZE_ALIGN ARCH_STACK_PTR_ALIGN
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#endif
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/*
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* High memory addresses
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*
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* +-------------------+ <- thread.stack_info.start + thread.stack_info.size
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* | TLS |
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* +-------------------+ <- initial sp (computable with thread.stack_info.delta)
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* | |
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* | Used stack |
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* | |
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* +...................+ <- thread's current stack pointer
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* | |
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* | Unused stack |
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* | |
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* +-------------------+ <- thread.stack_info.start
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* | Reserved memory | } K_(THREAD|KERNEL)_STACK_RESERVED
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* +-------------------+ <- thread.stack_obj
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*
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* Low Memory addresses
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*/
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/* thread stack */
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#define ARCH_THREAD_STACK_OBJ_ALIGN(size) Z_ARM64_STACK_BASE_ALIGN
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#define ARCH_THREAD_STACK_SIZE_ADJUST(size) \
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ROUND_UP((size), Z_ARM64_STACK_SIZE_ALIGN)
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#define ARCH_THREAD_STACK_RESERVED CONFIG_PRIVILEGED_STACK_SIZE
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/* kernel stack */
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#define ARCH_KERNEL_STACK_RESERVED 0
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#define ARCH_KERNEL_STACK_OBJ_ALIGN ARCH_STACK_PTR_ALIGN
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#ifndef _ASMLANGUAGE
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struct z_arm64_thread_stack_header {
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char privilege_stack[CONFIG_PRIVILEGED_STACK_SIZE];
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} __packed __aligned(Z_ARM64_STACK_BASE_ALIGN);
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#endif /* _ASMLANGUAGE */
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#endif /* ZEPHYR_INCLUDE_ARCH_ARM_AARCH64_THREAD_STACK_H_ */
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