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authorAndrew Murray <andrew.murray@arm.com>2019-06-13 13:51:02 +0100
committerDaniel Lezcano <daniel.lezcano@linaro.org>2019-06-25 19:49:18 +0200
commit5a354412567d7de81d69b6ac61c3b7fcebbe497e (patch)
tree76e79ad369b435786577762f5c1bc3a1d0d9e38f /arch/arm
parent7117a44bc0eb5d73dc8aa8df92134f736c2099ac (diff)
downloadlinux-5a354412567d7de81d69b6ac61c3b7fcebbe497e.tar.bz2
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/arm')
-rw-r--r--arch/arm/include/asm/arch_timer.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch_timer.h b/arch/arm/include/asm/arch_timer.h
index 4b66ecd6be99..99175812d903 100644
--- a/arch/arm/include/asm/arch_timer.h
+++ b/arch/arm/include/asm/arch_timer.h
@@ -4,6 +4,7 @@
#include <asm/barrier.h>
#include <asm/errno.h>
+#include <asm/hwcap.h>
#include <linux/clocksource.h>
#include <linux/init.h>
#include <linux/types.h>
@@ -124,6 +125,15 @@ static inline void arch_timer_set_cntkctl(u32 cntkctl)
isb();
}
+static inline void arch_timer_set_evtstrm_feature(void)
+{
+ elf_hwcap |= HWCAP_EVTSTRM;
+}
+
+static inline bool arch_timer_have_evtstrm_feature(void)
+{
+ return elf_hwcap & HWCAP_EVTSTRM;
+}
#endif
#endif