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38 lines
954 B
38 lines
954 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2020 ARM Ltd. |
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*/ |
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#ifndef __ASM_VDSO_CP15_H |
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#define __ASM_VDSO_CP15_H |
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#ifndef __ASSEMBLY__ |
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#ifdef CONFIG_CPU_CP15 |
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#include <linux/stringify.h> |
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#define __ACCESS_CP15(CRn, Op1, CRm, Op2) \ |
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"mrc", "mcr", __stringify(p15, Op1, %0, CRn, CRm, Op2), u32 |
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#define __ACCESS_CP15_64(Op1, CRm) \ |
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"mrrc", "mcrr", __stringify(p15, Op1, %Q0, %R0, CRm), u64 |
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#define __read_sysreg(r, w, c, t) ({ \ |
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t __val; \ |
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asm volatile(r " " c : "=r" (__val)); \ |
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__val; \ |
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}) |
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#define read_sysreg(...) __read_sysreg(__VA_ARGS__) |
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#define __write_sysreg(v, r, w, c, t) asm volatile(w " " c : : "r" ((t)(v))) |
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#define write_sysreg(v, ...) __write_sysreg(v, __VA_ARGS__) |
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#define BPIALL __ACCESS_CP15(c7, 0, c5, 6) |
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#define ICIALLU __ACCESS_CP15(c7, 0, c5, 0) |
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#define CNTVCT __ACCESS_CP15_64(1, c14) |
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#endif /* CONFIG_CPU_CP15 */ |
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#endif /* __ASSEMBLY__ */ |
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#endif /* __ASM_VDSO_CP15_H */
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