[PATCH 11/36] cpuidle,armada: Push RCU-idle into driver

[Peter Zijlstra <peterz@xxxxxxxxxxxxx>]

Doing RCU-idle outside the driver, only to then temporarily enable it
again before going idle is daft.

Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
---
 drivers/cpuidle/cpuidle-mvebu-v7.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/cpuidle/cpuidle-mvebu-v7.c
+++ b/drivers/cpuidle/cpuidle-mvebu-v7.c
@@ -36,7 +36,10 @@ static int mvebu_v7_enter_idle(struct cp
        if (drv->states[index].flags & MVEBU_V7_FLAG_DEEP_IDLE)
                deepidle = true;
 
+       rcu_idle_enter();
        ret = mvebu_v7_cpu_suspend(deepidle);
+       rcu_idle_exit();
+
        cpu_pm_exit();
 
        if (ret)
@@ -49,6 +52,7 @@ static struct cpuidle_driver armadaxp_id
        .name                   = "armada_xp_idle",
        .states[0]              = ARM_CPUIDLE_WFI_STATE,
        .states[1]              = {
+               .flags                  = CPUIDLE_FLAG_RCU_IDLE,
                .enter                  = mvebu_v7_enter_idle,
                .exit_latency           = 100,
                .power_usage            = 50,
@@ -57,6 +61,7 @@ static struct cpuidle_driver armadaxp_id
                .desc                   = "CPU power down",
        },
        .states[2]              = {
+               .flags                  = CPUIDLE_FLAG_RCU_IDLE,
                .enter                  = mvebu_v7_enter_idle,
                .exit_latency           = 1000,
                .power_usage            = 5,
@@ -72,6 +77,7 @@ static struct cpuidle_driver armada370_i
        .name                   = "armada_370_idle",
        .states[0]              = ARM_CPUIDLE_WFI_STATE,
        .states[1]              = {
+               .flags                  = CPUIDLE_FLAG_RCU_IDLE,
                .enter                  = mvebu_v7_enter_idle,
                .exit_latency           = 100,
                .power_usage            = 5,
@@ -87,6 +93,7 @@ static struct cpuidle_driver armada38x_i
        .name                   = "armada_38x_idle",
        .states[0]              = ARM_CPUIDLE_WFI_STATE,
        .states[1]              = {
+               .flags                  = CPUIDLE_FLAG_RCU_IDLE,
                .enter                  = mvebu_v7_enter_idle,
                .exit_latency           = 10,
                .power_usage            = 5,