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arch: arc: move the call of read_timer_start_xx to _isr_demux

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It's simpler and cleaner to move read_timer_start_of_isr to

_isr_demux. But the interrupt latency may be not accurate.

Signed-off-by: Wayne Ren <wei.ren@synopsys.com>
This commit is contained in:
Wayne Ren 2019-03-15 11:04:46 +08:00 • committed by Anas Nashif
commit 959abdf1c9
1 changed files with 4 additions and 31 deletions
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35
arch/arc/core/isr_wrapper.S
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@ -234,34 +234,6 @@ SECTION_FUNC(TEXT, _isr_wrapper)
#if CONFIG_RGF_NUM_BANKS == 1
st r0,[saved_r0]
#endif
#ifdef CONFIG_EXECUTION_BENCHMARKING
#if CONFIG_RGF_NUM_BANKS !=1
lr r0, [_ARC_V2_STATUS32]
and r0, r0, ~_ARC_V2_STATUS32_RB(7)
kflag r0
#endif
/*
* read_timer_start_of_isr just uses several
* register now, no need to save all regs
*/
push_s r0
push_s r1
push_s blink
bl read_timer_start_of_isr
pop_s blink
pop_s r1
pop_s r0
#if CONFIG_RGF_NUM_BANKS !=1
lr r0, [_ARC_V2_STATUS32]
or r0, r0, _ARC_V2_STATUS32_RB(1)
kflag r0
#endif
#endif
lr r0, [_ARC_V2_AUX_IRQ_ACT]
ffs r0, r0
cmp r0, 0
@ -317,9 +289,6 @@ rirq_path:
j_s [r2]
#endif
#else
#ifdef CONFIG_EXECUTION_BENCHMARKING
bl read_timer_start_of_isr
#endif
mov r3, _rirq_exit
mov r2, _rirq_enter
j_s [r2]
@ -367,6 +336,10 @@ _skip_sys_power_save_idle_exit:
/* when getting here, r3 contains the interrupt exit stub to call */
SECTION_FUNC(TEXT, _isr_demux)
push_s r3
#ifdef CONFIG_EXECUTION_BENCHMARKING
bl read_timer_start_of_isr
#endif
/* cannot be done before this point because we must be able to run C */
/* r0 is available to be stomped here, and exit_tickless_idle uses it */
exit_tickless_idle