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Commit 624e46d0 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Michael Ellerman
Browse files

cpuidle: powerpc: read mostly for common globals 



Ensure these don't get put into bouncing cachelines.

Reviewed-by: default avatarVaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Reviewed-by: default avatarGautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent 3fc5ee92

drivers/cpuidle/cpuidle-powernv.c

+5 −5
Original line number Diff line number Diff line
@@ -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,

drivers/cpuidle/cpuidle-pseries.c

+4 −4
Original line number Diff line number Diff line
@@ -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)

{