e882489024
The naming conventions in the delay code are confusing at best. All delay variants use a loops argument and or variable which originates from the original delay_loop() implementation. But all variants except delay_loop() are based on TSC cycles. Rename the argument to cycles and make it type u64 to avoid these weird expansions to u64 in the functions. Rename MWAITX_MAX_LOOPS to MWAITX_MAX_WAIT_CYCLES for the same reason and fixup the comment of delay_mwaitx() as well. Mark the delay_fn function pointer __ro_after_init and fixup the comment for it. No functional change and preparation for the upcoming TPAUSE based delay variant. [ Kyung Min Park: Added __init to use_tsc_delay() ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kyung Min Park <kyung.min.park@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1587757076-30337-2-git-send-email-kyung.min.park@intel.com
12 lines
239 B
C
12 lines
239 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_DELAY_H
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#define _ASM_X86_DELAY_H
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#include <asm-generic/delay.h>
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#include <linux/init.h>
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void __init use_tsc_delay(void);
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void use_mwaitx_delay(void);
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#endif /* _ASM_X86_DELAY_H */
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