Resguardo inicial

2026-09-06 12:53:21 -06:00
parent 662efe3c2a
commit ad2088d178
94853 changed files with 43200404 additions and 0 deletions
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+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_VDSO_PROCESSOR_H
+#define __ASM_VDSO_PROCESSOR_H
+
+#ifndef __ASSEMBLER__
+
+#include <asm/barrier.h>
+#include <asm/errata_list.h>
+#include <asm/insn-def.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
+
+	/*
+	 * Reduce instruction retirement.
+	 * This assumes the PC changes.
+	 */
+	ALT_RISCV_PAUSE();
+	barrier();
+}
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* __ASM_VDSO_PROCESSOR_H */