opal/sys: Introduce OPAL_HAVE_SYS_TIMER_GET_FREQ macro

... to avoid using an architecture name macro in
`opal/mca/timer/linux/timer_linux_component.c`.

The function name `opal_sys_timer_freq` is also changed for
consistency with `opal_sys_timer_get_cycles`.

Signed-off-by: KAWASHIMA Takahiro <t-kawashima@jp.fujitsu.com>

Author: kawashima-fj

opal/include/opal/sys/arm64/timer.h

@@ -31,13 +31,14 @@ opal_sys_timer_get_cycles(void)
 
 
 static inline opal_timer_t
-opal_sys_timer_freq(void)
+opal_sys_timer_get_freq(void)
 {
     opal_timer_t freq;
     __asm__ __volatile__ ("mrs %0,  CNTFRQ_EL0" : "=r" (freq));
     return (opal_timer_t)(freq);
 }
 
 #define OPAL_HAVE_SYS_TIMER_GET_CYCLES 1
+#define OPAL_HAVE_SYS_TIMER_GET_FREQ 1
 
 #endif /* ! OPAL_SYS_ARCH_TIMER_H */

opal/include/opal/sys/timer.h

@@ -98,6 +98,10 @@ BEGIN_C_DECLS
 
 typedef long opal_timer_t;
 #endif
+
+#ifndef OPAL_HAVE_SYS_TIMER_GET_FREQ
+#define OPAL_HAVE_SYS_TIMER_GET_FREQ 0
+#endif
 #endif
 
 #ifndef OPAL_HAVE_SYS_TIMER_IS_MONOTONIC

opal/mca/timer/linux/timer_linux_component.c

@@ -117,8 +117,8 @@ static int opal_timer_linux_find_freq(void)
 
     opal_timer_linux_freq = 0;
 
-#if OPAL_ASSEMBLY_ARCH == OPAL_ARM64
-	opal_timer_linux_freq = opal_sys_timer_freq();
+#if OPAL_HAVE_SYS_TIMER_GET_FREQ
+    opal_timer_linux_freq = opal_sys_timer_get_freq();
 #endif
 
     if (0 == opal_timer_linux_freq) {