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| author | Nicholas Piggin <npiggin@gmail.com> | 2017-06-14 23:02:40 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-06-28 13:08:12 +1000 |
| commit | 624e46d03576dd4d5667bad9d2ef814135d0075c (patch) | |
| tree | 2938e87f1c230f411b58567a6663c9b00c32b33a /drivers/cpuidle | |
| parent | 3fc5ee927ff4ffed6aa2fcd44d2fbf07ac893cdc (diff) | |
| download | op-kernel-dev-624e46d03576dd4d5667bad9d2ef814135d0075c.zip op-kernel-dev-624e46d03576dd4d5667bad9d2ef814135d0075c.tar.gz | |
cpuidle: powerpc: read mostly for common globals
Ensure these don't get put into bouncing cachelines.
Reviewed-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/cpuidle-powernv.c | 10 | ||||
| -rw-r--r-- | 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 50b3c2e0..9d03326 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 7b12bb2..a404f35 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) { |
