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| author | Dmitriy Korovkin <dmitriy.korovkin@windriver.com> | 2016-10-12 11:09:58 -0400 |
|---|---|---|
| committer | Anas Nashif <nashif@linux.intel.com> | 2016-10-22 01:27:01 +0000 |
| commit | dc76dbf2ef70428b9ab361bc239b752fead01790 (patch) | |
| tree | 21c34f2a1757181cfcaee68c896766485a91201a /arch | |
| parent | 3c90651fd87a76d2ace2f320cea7a503e64962a4 (diff) | |
unified: Add tickless idle support for ARC
Change-Id: I89684e7bee379be0a18f64e4f2c39ae132fe7e6d
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arc/core/isr_wrapper.S | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arc/core/isr_wrapper.S b/arch/arc/core/isr_wrapper.S index 75c44e813..7c36ca8bd 100644 --- a/arch/arc/core/isr_wrapper.S +++ b/arch/arc/core/isr_wrapper.S @@ -44,6 +44,8 @@ SECTION_VAR(BSS, saved_r0) #if defined(CONFIG_NANOKERNEL) && defined(CONFIG_TICKLESS_IDLE) GTEXT(_power_save_idle_exit) +#elif defined(CONFIG_KERNEL_V2) && defined(CONFIG_SYS_POWER_MANAGEMENT) +GTEXT(_sys_power_save_idle_exit) #endif /* @@ -319,6 +321,25 @@ GTEXT(_sys_k_event_logger_interrupt) pop_s r0 seti r0 .endm +#elif defined(CONFIG_KERNEL_V2) && defined(CONFIG_SYS_POWER_MANAGEMENT) +.macro exit_tickless_idle + clri r0 /* do not interrupt exiting tickless idle operations */ + push_s r1 + push_s r0 + mov_s r1, _nanokernel + ld_s r0, [r1, __tNANO_idle_OFFSET] /* requested idle duration */ + breq r0, 0, _skip_sys_power_save_idle_exit + + st 0, [r1, __tNANO_idle_OFFSET] /* zero idle duration */ + push_s blink + jl _sys_power_save_idle_exit + pop_s blink + +_skip_sys_power_save_idle_exit: + pop_s r0 + pop_s r1 + seti r0 +.endm #else #define exit_tickless_idle #endif |