diff options
Diffstat (limited to 'arch/x86/include/asm/timex.h')
-rw-r--r-- | arch/x86/include/asm/timex.h | 22 |
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 */ |