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| author | Andrew Murray <andrew.murray@arm.com> | 2019-06-13 14:51:02 +0200 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2019-06-25 19:49:18 +0200 |
| commit | 5a354412567d7de81d69b6ac61c3b7fcebbe497e (patch) | |
| tree | 76e79ad369b435786577762f5c1bc3a1d0d9e38f /arch/arm64 | |
| parent | clocksource/drivers/sysctr: Add nxp system counter timer driver support (diff) | |
| download | linux-5a354412567d7de81d69b6ac61c3b7fcebbe497e.tar.xz linux-5a354412567d7de81d69b6ac61c3b7fcebbe497e.zip | |
clocksource/drivers/arm_arch_timer: Extract elf_hwcap use to arch-helper
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>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/arch_timer.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h index 50b3ab7ded4f..a847a3ee6cab 100644 --- a/arch/arm64/include/asm/arch_timer.h +++ b/arch/arm64/include/asm/arch_timer.h @@ -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 |