diff options
| author | Sonic Zhang <sonic.zhang@analog.com> | 2012-05-17 17:33:00 +0800 |
|---|---|---|
| committer | Bob Liu <lliubbo@gmail.com> | 2012-05-21 14:54:52 +0800 |
| commit | 72b099ed93989575b0c447023748968d30059e8f (patch) | |
| tree | 0e5bb7040da26232d66c2fb6c24854566ed9a07a /arch/blackfin/include | |
| parent | 0fbd88ca20a68a633b565e1f5ba18ca64afb0c78 (diff) | |
| download | linux-stable-72b099ed93989575b0c447023748968d30059e8f.tar.gz linux-stable-72b099ed93989575b0c447023748968d30059e8f.tar.bz2 linux-stable-72b099ed93989575b0c447023748968d30059e8f.zip | |
blackfin: bf60x: pm: Add a debug option to calculate kernel wakeup time.
Display the total time when kernel resumes normal from standby or suspend to mem
mode.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Diffstat (limited to 'arch/blackfin/include')
| -rw-r--r-- | arch/blackfin/include/asm/dpmc.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/dpmc.h b/arch/blackfin/include/asm/dpmc.h index 528f47685781..e91eae8330a6 100644 --- a/arch/blackfin/include/asm/dpmc.h +++ b/arch/blackfin/include/asm/dpmc.h @@ -53,6 +53,16 @@ #define PM_SYS_PUSH16(n, x) _PM_PUSH(n, x, w, SYSMMR_BASE) #define PM_SYS_POP16(n, x) _PM_POP(n, x, w, SYSMMR_BASE) + .macro bfin_init_pm_bench_cycles +#ifdef CONFIG_BFIN_PM_WAKEUP_TIME_BENCH + R4 = 0; + CYCLES = R4; + CYCLES2 = R4; + R4 = SYSCFG; + BITSET(R4, 1); + SYSCFG = R4; +#endif + .endm .macro bfin_cpu_reg_save /* @@ -98,8 +108,10 @@ r7 = RETI; [--sp] = RETS; [--sp] = ASTAT; +#ifndef CONFIG_BFIN_PM_WAKEUP_TIME_BENCH [--sp] = CYCLES; [--sp] = CYCLES2; +#endif [--sp] = SYSCFG; [--sp] = RETX; [--sp] = SEQSTAT; @@ -115,8 +127,10 @@ SEQSTAT = [sp++]; RETX = [sp++]; SYSCFG = [sp++]; +#ifndef CONFIG_BFIN_PM_WAKEUP_TIME_BENCH CYCLES2 = [sp++]; CYCLES = [sp++]; +#endif ASTAT = [sp++]; RETS = [sp++]; |