mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-08-09 06:14:34 +02:00
Ingo Molnar
5c75b98aa9
Now that the Kconfig space always enables CONFIG_X86_TSC (on x86), remove !CONFIG_X86_TSC code from the x86 arch code. We still keep the Kconfig option to catch any eventual code still pending in maintainer or non-mainline trees, plus some drivers have raw TSC timestamping hacks that use CONFIG_X86_TSC. It's also still possible to disable TSC support runtime. Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ahmed S . Darwish <darwi@linutronix.de> Cc: Andrew Cooper <andrew.cooper3@citrix.com> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: H . Peter Anvin <hpa@zytor.com> Cc: John Ogness <john.ogness@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20250425084216.3913608-13-mingo@kernel.org
22 lines
510 B
C
22 lines
510 B
C
/* 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 (!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 */
|