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-rw-r--r--arch/x86/include/asm/timex.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/x86/include/asm/timex.h b/arch/x86/include/asm/timex.h
new file mode 100644
index 000000000..956e41453
--- /dev/null
+++ b/arch/x86/include/asm/timex.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_TIMEX_H
+#define _ASM_X86_TIMEX_H
+
+#include <asm/processor.h>
+#include <asm/tsc.h>
+
+static inline unsigned long random_get_entropy(void)
+{
+ if (!IS_ENABLED(CONFIG_X86_TSC) &&
+ !cpu_feature_enabled(X86_FEATURE_TSC))
+ return random_get_entropy_fallback();
+ return rdtsc();
+}
+#define random_get_entropy random_get_entropy
+
+/* Assume we use the PIT time source for the clock tick */
+#define CLOCK_TICK_RATE PIT_TICK_RATE
+
+#define ARCH_HAS_READ_CURRENT_TIMER
+
+#endif /* _ASM_X86_TIMEX_H */