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blackfin: bf60x: pm: Add a debug option to calculate kernel wakeup time.

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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>
This commit is contained in:
Sonic Zhang
2012-05-17 17:33:00 +08:00
committed by Bob Liu
parent 0fbd88ca20
commit 72b099ed93
6 changed files with 74 additions and 0 deletions
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14
arch/blackfin/include/asm/dpmc.h
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@@ -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++];