1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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2 | #ifndef _ASM_X86_TIMEX_H |
3 | #define _ASM_X86_TIMEX_H |
4 | |
5 | #include <asm/processor.h> |
6 | #include <asm/tsc.h> |
7 | |
8 | static inline unsigned long random_get_entropy(void) |
9 | { |
10 | if (!IS_ENABLED(CONFIG_X86_TSC) && |
11 | !cpu_feature_enabled(X86_FEATURE_TSC)) |
12 | return random_get_entropy_fallback(); |
13 | return rdtsc(); |
14 | } |
15 | #define random_get_entropy random_get_entropy |
16 | |
17 | /* Assume we use the PIT time source for the clock tick */ |
18 | #define CLOCK_TICK_RATE PIT_TICK_RATE |
19 | |
20 | #define ARCH_HAS_READ_CURRENT_TIMER |
21 | |
22 | #endif /* _ASM_X86_TIMEX_H */ |
23 |