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drivers: loapic_timer: simplify TSC read

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We have an inline function for this in x86's arch.h
that works for both 64 and 32-bit.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2020-02-06 14:19:29 -08:00 • committed by Anas Nashif
commit 846034f678
1 changed files with 2 additions and 16 deletions
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18
drivers/timer/loapic_timer.c
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@ -202,14 +202,7 @@ void timer_int_handler(void *unused /* parameter is not used */
)
{
#ifdef CONFIG_EXECUTION_BENCHMARKING
__asm__ __volatile__ (
"pushl %eax\n\t"
"pushl %edx\n\t"
"rdtsc\n\t"
"mov %eax, arch_timing_tick_start\n\t"
"mov %edx, arch_timing_tick_start+4\n\t"
"pop %edx\n\t"
"pop %eax\n\t");
arch_timing_tick_start = z_tsc_read();
#endif
ARG_UNUSED(unused);
@ -289,14 +282,7 @@ void timer_int_handler(void *unused /* parameter is not used */
#endif /*CONFIG_TICKLESS_IDLE*/
#endif
#ifdef CONFIG_EXECUTION_BENCHMARKING
__asm__ __volatile__ (
"pushl %eax\n\t"
"pushl %edx\n\t"
"rdtsc\n\t"
"mov %eax, arch_timing_tick_end\n\t"
"mov %edx, arch_timing_tick_end+4\n\t"
"pop %edx\n\t"
"pop %eax\n\t");
arch_timing_tick_end = z_tsc_read();
#endif /* CONFIG_EXECUTION_BENCHMARKING */
}