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>
43 lines
760 B
ArmAsm
43 lines
760 B
ArmAsm
/*
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* Copyright (c) 2019 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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/*
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* ARM64 Cortex-A power management
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*/
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#include <toolchain.h>
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#include <linker/sections.h>
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#include <arch/cpu.h>
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_ASM_FILE_PROLOGUE
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GTEXT(arch_cpu_idle)
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SECTION_FUNC(TEXT, arch_cpu_idle)
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#ifdef CONFIG_TRACING
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stp xzr, x30, [sp, #-16]!
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bl sys_trace_idle
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ldp xzr, x30, [sp], #16
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#endif
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dsb sy
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wfi
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msr daifclr, #(DAIFCLR_IRQ_BIT)
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ret
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GTEXT(arch_cpu_atomic_idle)
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SECTION_FUNC(TEXT, arch_cpu_atomic_idle)
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#ifdef CONFIG_TRACING
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stp x0, x30, [sp, #-16]!
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bl sys_trace_idle
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ldp x0, x30, [sp], #16
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#endif
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msr daifset, #(DAIFSET_IRQ_BIT)
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isb
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wfe
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tst x0, #(DAIF_IRQ_BIT)
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beq _irq_disabled
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msr daifclr, #(DAIFCLR_IRQ_BIT)
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_irq_disabled:
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ret
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