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arc: cpu_idle: remove sleep workround for nsim_hs_smp

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In old version nSIM, when cpu is sleeping, no response to
inter-processor interrupt although it's pending and interrupts
are enabled(SNPS JIRA issue P10019563-41294). Now this has
been fixed in nSIM version (2020.09), so we can safely remove it.

Signed-off-by: Watson Zeng <zhiwei@synopsys.com>
This commit is contained in:
Watson Zeng 2020-10-22 09:14:58 +08:00 • committed by Anas Nashif
commit 3d30f1f60a
1 changed files with 0 additions and 13 deletions
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13
arch/arc/core/cpu_idle.S
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@ -43,20 +43,7 @@ SECTION_FUNC(TEXT, arch_cpu_idle)
ld r1, [z_arc_cpu_sleep_mode]
or r1, r1, (1 << 4) /* set IRQ-enabled bit */
/*
* It's found that (in nsim_hs_smp), when cpu
* is sleeping, no response to inter-processor interrupt
* although it's pending and interrupts are enabled.
* (Here fire SNPS JIRA issue P10019563-41294 to trace)
* here is a workround
*/
#if defined(CONFIG_SOC_NSIM) && defined(CONFIG_SMP)
seti r1
_z_arc_idle_loop:
b _z_arc_idle_loop
#else
sleep r1
#endif
j_s [blink]
nop