[PATCH 2/3] cpuidle: powerpc: read mostly for common globals
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2017-06-14 13:03:16
Also in:
linux-pm, lkml
Subsystem:
cpu idle time management framework, the rest · Maintainers:
"Rafael J. Wysocki", Daniel Lezcano, Linus Torvalds
Ensure these don't get put into bouncing cachelines. Reviewed-by: Vaidyanathan Srinivasan <redacted> Reviewed-by: Gautham R. Shenoy <redacted> Signed-off-by: Nicholas Piggin <npiggin@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 77bc50ad9f57..abf2ffcd4a0a 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