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clocksource/drivers/arm_arch_timer: Extract elf_hwcap use to arch-helper

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Different mechanisms are used to test and set elf_hwcaps between ARM
and ARM64, this results in the use of ifdeferry in this file when
setting/testing for the EVTSTRM hwcap.

Let's improve readability by extracting this to an arch helper.

Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Andrew Murray
2019-06-13 13:51:02 +01:00
committed by Daniel Lezcano
parent 7117a44bc0
commit 5a35441256
3 changed files with 25 additions and 13 deletions
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13
arch/arm64/include/asm/arch_timer.h
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@@ -20,6 +20,7 @@
#define __ASM_ARCH_TIMER_H
#include <asm/barrier.h>
#include <asm/hwcap.h>
#include <asm/sysreg.h>
#include <linux/bug.h>
@@ -240,4 +241,16 @@ static inline int arch_timer_arch_init(void)
return 0;
}
static inline void arch_timer_set_evtstrm_feature(void)
{
cpu_set_named_feature(EVTSTRM);
#ifdef CONFIG_COMPAT
compat_elf_hwcap |= COMPAT_HWCAP_EVTSTRM;
#endif
}
static inline bool arch_timer_have_evtstrm_feature(void)
{
return cpu_have_named_feature(EVTSTRM);
}
#endif