From 866ba0ef967c693dae952afafcb1582a390a82a0 Mon Sep 17 00:00:00 2001 From: Jean Pihet Date: Mon, 9 May 2011 12:02:13 +0200 Subject: [PATCH] OMAP3: clean-up mach specific cpuidle data structures - sleep_latency and wake_latency are not used, replace them by exit_latency which is used by cpuidle. exit_latency simply is the sum of sleep_latency and wake_latency, - replace threshold by target_residency, - changed the OMAP3 specific cpuidle code accordingly, - changed the OMAP3 board code accordingly. Signed-off-by: Jean Pihet Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/board-rx51.c | 18 ++++-- arch/arm/mach-omap2/cpuidle34xx.c | 103 +++++++++++++----------------- arch/arm/mach-omap2/pm.h | 13 ++-- 3 files changed, 63 insertions(+), 71 deletions(-) diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c index f8ba20a14e6..fec4cac8fa0 100644 --- a/arch/arm/mach-omap2/board-rx51.c +++ b/arch/arm/mach-omap2/board-rx51.c @@ -58,21 +58,25 @@ static struct platform_device leds_gpio = { }, }; +/* + * cpuidle C-states definition override from the default values. + * The 'exit_latency' field is the sum of sleep and wake-up latencies. + */ static struct cpuidle_params rx51_cpuidle_params[] = { /* C1 */ - {1, 110, 162, 5}, + {110 + 162, 5 , 1}, /* C2 */ - {1, 106, 180, 309}, + {106 + 180, 309, 1}, /* C3 */ - {0, 107, 410, 46057}, + {107 + 410, 46057, 0}, /* C4 */ - {0, 121, 3374, 46057}, + {121 + 3374, 46057, 0}, /* C5 */ - {1, 855, 1146, 46057}, + {855 + 1146, 46057, 1}, /* C6 */ - {0, 7580, 4134, 484329}, + {7580 + 4134, 484329, 0}, /* C7 */ - {1, 7505, 15274, 484329}, + {7505 + 15274, 484329, 1}, }; static struct omap_lcd_config rx51_lcd_config = { diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index 1c240eff391..d7bc31a2b3a 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -52,11 +52,10 @@ struct omap3_processor_cx { u8 valid; u8 type; - u32 sleep_latency; - u32 wakeup_latency; + u32 exit_latency; u32 mpu_state; u32 core_state; - u32 threshold; + u32 target_residency; u32 flags; const char *desc; }; @@ -75,19 +74,19 @@ struct powerdomain *cam_pd; */ static struct cpuidle_params cpuidle_params_table[] = { /* C1 */ - {1, 2, 2, 5}, + {2 + 2, 5, 1}, /* C2 */ - {1, 10, 10, 30}, + {10 + 10, 30, 1}, /* C3 */ - {1, 50, 50, 300}, + {50 + 50, 300, 1}, /* C4 */ - {1, 1500, 1800, 4000}, + {1500 + 1800, 4000, 1}, /* C5 */ - {1, 2500, 7500, 12000}, + {2500 + 7500, 12000, 1}, /* C6 */ - {1, 3000, 8500, 15000}, + {3000 + 8500, 15000, 1}, /* C7 */ - {1, 10000, 30000, 300000}, + {10000 + 30000, 300000, 1}, }; static int omap3_idle_bm_check(void) @@ -330,12 +329,10 @@ void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params) for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) { cpuidle_params_table[i].valid = cpuidle_board_params[i].valid; - cpuidle_params_table[i].sleep_latency = - cpuidle_board_params[i].sleep_latency; - cpuidle_params_table[i].wake_latency = - cpuidle_board_params[i].wake_latency; - cpuidle_params_table[i].threshold = - cpuidle_board_params[i].threshold; + cpuidle_params_table[i].exit_latency = + cpuidle_board_params[i].exit_latency; + cpuidle_params_table[i].target_residency = + cpuidle_board_params[i].target_residency; } return; } @@ -357,12 +354,10 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C1].valid = cpuidle_params_table[OMAP3_STATE_C1].valid; omap3_power_states[OMAP3_STATE_C1].type = OMAP3_STATE_C1; - omap3_power_states[OMAP3_STATE_C1].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C1].sleep_latency; - omap3_power_states[OMAP3_STATE_C1].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C1].wake_latency; - omap3_power_states[OMAP3_STATE_C1].threshold = - cpuidle_params_table[OMAP3_STATE_C1].threshold; + omap3_power_states[OMAP3_STATE_C1].exit_latency = + cpuidle_params_table[OMAP3_STATE_C1].exit_latency; + omap3_power_states[OMAP3_STATE_C1].target_residency = + cpuidle_params_table[OMAP3_STATE_C1].target_residency; omap3_power_states[OMAP3_STATE_C1].mpu_state = PWRDM_POWER_ON; omap3_power_states[OMAP3_STATE_C1].core_state = PWRDM_POWER_ON; omap3_power_states[OMAP3_STATE_C1].flags = CPUIDLE_FLAG_TIME_VALID; @@ -372,12 +367,10 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C2].valid = cpuidle_params_table[OMAP3_STATE_C2].valid; omap3_power_states[OMAP3_STATE_C2].type = OMAP3_STATE_C2; - omap3_power_states[OMAP3_STATE_C2].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C2].sleep_latency; - omap3_power_states[OMAP3_STATE_C2].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C2].wake_latency; - omap3_power_states[OMAP3_STATE_C2].threshold = - cpuidle_params_table[OMAP3_STATE_C2].threshold; + omap3_power_states[OMAP3_STATE_C2].exit_latency = + cpuidle_params_table[OMAP3_STATE_C2].exit_latency; + omap3_power_states[OMAP3_STATE_C2].target_residency = + cpuidle_params_table[OMAP3_STATE_C2].target_residency; omap3_power_states[OMAP3_STATE_C2].mpu_state = PWRDM_POWER_ON; omap3_power_states[OMAP3_STATE_C2].core_state = PWRDM_POWER_ON; omap3_power_states[OMAP3_STATE_C2].flags = CPUIDLE_FLAG_TIME_VALID | @@ -388,12 +381,10 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C3].valid = cpuidle_params_table[OMAP3_STATE_C3].valid; omap3_power_states[OMAP3_STATE_C3].type = OMAP3_STATE_C3; - omap3_power_states[OMAP3_STATE_C3].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C3].sleep_latency; - omap3_power_states[OMAP3_STATE_C3].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C3].wake_latency; - omap3_power_states[OMAP3_STATE_C3].threshold = - cpuidle_params_table[OMAP3_STATE_C3].threshold; + omap3_power_states[OMAP3_STATE_C3].exit_latency = + cpuidle_params_table[OMAP3_STATE_C3].exit_latency; + omap3_power_states[OMAP3_STATE_C3].target_residency = + cpuidle_params_table[OMAP3_STATE_C3].target_residency; omap3_power_states[OMAP3_STATE_C3].mpu_state = PWRDM_POWER_RET; omap3_power_states[OMAP3_STATE_C3].core_state = PWRDM_POWER_ON; omap3_power_states[OMAP3_STATE_C3].flags = CPUIDLE_FLAG_TIME_VALID | @@ -404,12 +395,10 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C4].valid = cpuidle_params_table[OMAP3_STATE_C4].valid; omap3_power_states[OMAP3_STATE_C4].type = OMAP3_STATE_C4; - omap3_power_states[OMAP3_STATE_C4].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C4].sleep_latency; - omap3_power_states[OMAP3_STATE_C4].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C4].wake_latency; - omap3_power_states[OMAP3_STATE_C4].threshold = - cpuidle_params_table[OMAP3_STATE_C4].threshold; + omap3_power_states[OMAP3_STATE_C4].exit_latency = + cpuidle_params_table[OMAP3_STATE_C4].exit_latency; + omap3_power_states[OMAP3_STATE_C4].target_residency = + cpuidle_params_table[OMAP3_STATE_C4].target_residency; omap3_power_states[OMAP3_STATE_C4].mpu_state = PWRDM_POWER_OFF; omap3_power_states[OMAP3_STATE_C4].core_state = PWRDM_POWER_ON; omap3_power_states[OMAP3_STATE_C4].flags = CPUIDLE_FLAG_TIME_VALID | @@ -420,12 +409,10 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C5].valid = cpuidle_params_table[OMAP3_STATE_C5].valid; omap3_power_states[OMAP3_STATE_C5].type = OMAP3_STATE_C5; - omap3_power_states[OMAP3_STATE_C5].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C5].sleep_latency; - omap3_power_states[OMAP3_STATE_C5].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C5].wake_latency; - omap3_power_states[OMAP3_STATE_C5].threshold = - cpuidle_params_table[OMAP3_STATE_C5].threshold; + omap3_power_states[OMAP3_STATE_C5].exit_latency = + cpuidle_params_table[OMAP3_STATE_C5].exit_latency; + omap3_power_states[OMAP3_STATE_C5].target_residency = + cpuidle_params_table[OMAP3_STATE_C5].target_residency; omap3_power_states[OMAP3_STATE_C5].mpu_state = PWRDM_POWER_RET; omap3_power_states[OMAP3_STATE_C5].core_state = PWRDM_POWER_RET; omap3_power_states[OMAP3_STATE_C5].flags = CPUIDLE_FLAG_TIME_VALID | @@ -436,12 +423,10 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C6].valid = cpuidle_params_table[OMAP3_STATE_C6].valid; omap3_power_states[OMAP3_STATE_C6].type = OMAP3_STATE_C6; - omap3_power_states[OMAP3_STATE_C6].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C6].sleep_latency; - omap3_power_states[OMAP3_STATE_C6].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C6].wake_latency; - omap3_power_states[OMAP3_STATE_C6].threshold = - cpuidle_params_table[OMAP3_STATE_C6].threshold; + omap3_power_states[OMAP3_STATE_C6].exit_latency = + cpuidle_params_table[OMAP3_STATE_C6].exit_latency; + omap3_power_states[OMAP3_STATE_C6].target_residency = + cpuidle_params_table[OMAP3_STATE_C6].target_residency; omap3_power_states[OMAP3_STATE_C6].mpu_state = PWRDM_POWER_OFF; omap3_power_states[OMAP3_STATE_C6].core_state = PWRDM_POWER_RET; omap3_power_states[OMAP3_STATE_C6].flags = CPUIDLE_FLAG_TIME_VALID | @@ -452,12 +437,10 @@ void omap_init_power_states(void) omap3_power_states[OMAP3_STATE_C7].valid = cpuidle_params_table[OMAP3_STATE_C7].valid; omap3_power_states[OMAP3_STATE_C7].type = OMAP3_STATE_C7; - omap3_power_states[OMAP3_STATE_C7].sleep_latency = - cpuidle_params_table[OMAP3_STATE_C7].sleep_latency; - omap3_power_states[OMAP3_STATE_C7].wakeup_latency = - cpuidle_params_table[OMAP3_STATE_C7].wake_latency; - omap3_power_states[OMAP3_STATE_C7].threshold = - cpuidle_params_table[OMAP3_STATE_C7].threshold; + omap3_power_states[OMAP3_STATE_C7].exit_latency = + cpuidle_params_table[OMAP3_STATE_C7].exit_latency; + omap3_power_states[OMAP3_STATE_C7].target_residency = + cpuidle_params_table[OMAP3_STATE_C7].target_residency; omap3_power_states[OMAP3_STATE_C7].mpu_state = PWRDM_POWER_OFF; omap3_power_states[OMAP3_STATE_C7].core_state = PWRDM_POWER_OFF; omap3_power_states[OMAP3_STATE_C7].flags = CPUIDLE_FLAG_TIME_VALID | @@ -512,8 +495,8 @@ int __init omap3_idle_init(void) if (!cx->valid) continue; cpuidle_set_statedata(state, cx); - state->exit_latency = cx->sleep_latency + cx->wakeup_latency; - state->target_residency = cx->threshold; + state->exit_latency = cx->exit_latency; + state->target_residency = cx->target_residency; state->flags = cx->flags; state->enter = (state->flags & CPUIDLE_FLAG_CHECK_BM) ? omap3_enter_idle_bm : omap3_enter_idle; diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h index 797bfd12b64..32dbc1311ef 100644 --- a/arch/arm/mach-omap2/pm.h +++ b/arch/arm/mach-omap2/pm.h @@ -36,11 +36,16 @@ static inline int omap4_opp_init(void) } #endif +/* + * cpuidle mach specific parameters + * + * The board code can override the default C-states definition using + * omap3_pm_init_cpuidle + */ struct cpuidle_params { - u8 valid; - u32 sleep_latency; - u32 wake_latency; - u32 threshold; + u32 exit_latency; /* exit_latency = sleep + wake-up latencies */ + u32 target_residency; + u8 valid; /* validates the C-state */ }; #if defined(CONFIG_PM) && defined(CONFIG_CPU_IDLE) -- 2.43.2