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- /* SPDX-License-Identifier: GPL-2.0-only */
- #ifndef __ASM_VDSO_PROCESSOR_H
- #define __ASM_VDSO_PROCESSOR_H
- #ifndef __ASSEMBLY__
- #include <asm/barrier.h>
- static inline void cpu_relax(void)
- {
- #ifdef __riscv_muldiv
- int dummy;
- /* In lieu of a halt instruction, induce a long-latency stall. */
- __asm__ __volatile__ ("div %0, %0, zero" : "=r" (dummy));
- #endif
- barrier();
- }
- #endif /* __ASSEMBLY__ */
- #endif /* __ASM_VDSO_PROCESSOR_H */
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