a43f3bade8
Fix the header guards, comments, github labeler, CODEOWNERS and MAINTAINERS files. Signed-off-by: Carlo Caione <ccaione@baylibre.com>
48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
/*
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* Copyright 2020 Broadcom.
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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_ARM64_MACRO_INC_
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#define ZEPHYR_INCLUDE_ARCH_ARM64_MACRO_INC_
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#ifdef _ASMLANGUAGE
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.macro switch_el, xreg, el3_label, el2_label, el1_label
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mrs \xreg, CurrentEL
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cmp \xreg, 0xc
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beq \el3_label
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cmp \xreg, 0x8
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beq \el2_label
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cmp \xreg, 0x4
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beq \el1_label
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.endm
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/*
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* macro to support mov of immediate constant to 64 bit register
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* It will generate instruction sequence of 'mov'/ 'movz' and one
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* to three 'movk' depending on the immediate value.
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*/
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.macro mov_imm, xreg, imm
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.if ((\imm) == 0)
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mov \xreg, \imm
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.else
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.if (((\imm) >> 31) == 0 || ((\imm) >> 31) == 0x1ffffffff)
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movz \xreg, (\imm >> 16) & 0xffff, lsl 16
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.else
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.if (((\imm) >> 47) == 0 || ((\imm) >> 47) == 0x1ffff)
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movz \xreg, (\imm >> 32) & 0xffff, lsl 32
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.else
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movz \xreg, (\imm >> 48) & 0xffff, lsl 48
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movk \xreg, (\imm >> 32) & 0xffff, lsl 32
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.endif
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movk \xreg, (\imm >> 16) & 0xffff, lsl 16
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.endif
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movk \xreg, (\imm) & 0xffff, lsl 0
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.endif
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.endm
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#endif /* _ASMLANGUAGE */
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#endif /* ZEPHYR_INCLUDE_ARCH_ARM64_MACRO_INC_ */
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