[PATCH 09/14] powerpc/64s: idle read mostly for common globals
Nicholas Piggin
npiggin at gmail.com
Fri Jun 2 17:39:41 AEST 2017
Ensure these don't get put into bouncing cachelines.
Signed-off-by: Nicholas Piggin <npiggin at gmail.com>
---
drivers/cpuidle/cpuidle-powernv.c | 10 +++++-----
drivers/cpuidle/cpuidle-pseries.c | 8 ++++----
2 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 0ee4660efb5f..f0247652d91f 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -32,18 +32,18 @@ static struct cpuidle_driver powernv_idle_driver = {
.owner = THIS_MODULE,
};
-static int max_idle_state;
-static struct cpuidle_state *cpuidle_state_table;
+static int max_idle_state __read_mostly;
+static struct cpuidle_state *cpuidle_state_table __read_mostly;
struct stop_psscr_table {
u64 val;
u64 mask;
};
-static struct stop_psscr_table stop_psscr_table[CPUIDLE_STATE_MAX];
+static struct stop_psscr_table stop_psscr_table[CPUIDLE_STATE_MAX] __read_mostly;
-static u64 snooze_timeout;
-static bool snooze_timeout_en;
+static u64 snooze_timeout __read_mostly;
+static bool snooze_timeout_en __read_mostly;
static int snooze_loop(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
diff --git a/drivers/cpuidle/cpuidle-pseries.c b/drivers/cpuidle/cpuidle-pseries.c
index 7b12bb2ea70f..a404f352d284 100644
--- a/drivers/cpuidle/cpuidle-pseries.c
+++ b/drivers/cpuidle/cpuidle-pseries.c
@@ -25,10 +25,10 @@ struct cpuidle_driver pseries_idle_driver = {
.owner = THIS_MODULE,
};
-static int max_idle_state;
-static struct cpuidle_state *cpuidle_state_table;
-static u64 snooze_timeout;
-static bool snooze_timeout_en;
+static int max_idle_state __read_mostly;
+static struct cpuidle_state *cpuidle_state_table __read_mostly;
+static u64 snooze_timeout __read_mostly;
+static bool snooze_timeout_en __read_mostly;
static inline void idle_loop_prolog(unsigned long *in_purr)
{
--
2.11.0
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