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| author | Deepthi Dharwar <deepthi@linux.vnet.ibm.com> | 2014-01-14 14:56:28 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-01-29 10:02:23 +0400 |
| commit | bf7f61f2dfc5c5764e862bee317a5a227091d0d2 (patch) | |
| tree | 8eef750018a9defe5729129a66335a5b076cb1f9 /drivers/cpuidle/cpuidle-pseries.c | |
| parent | 12431c64979bcda4786437f2a83aa0afc8bfc9da (diff) | |
| download | linux-bf7f61f2dfc5c5764e862bee317a5a227091d0d2.tar.xz | |
powerpc/pseries/cpuidle: Remove MAX_IDLE_STATE macro.
This patch removes the usage of MAX_IDLE_STATE macro
and dead code around it. The number of states
are determined at run time based on the cpuidle
state table selected on a given platform
Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'drivers/cpuidle/cpuidle-pseries.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle-pseries.c | 28 |
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/cpuidle/cpuidle-pseries.c b/drivers/cpuidle/cpuidle-pseries.c index 5e13f6ce2271..bb56091685d3 100644 --- a/drivers/cpuidle/cpuidle-pseries.c +++ b/drivers/cpuidle/cpuidle-pseries.c @@ -24,9 +24,7 @@ struct cpuidle_driver pseries_idle_driver = { .owner = THIS_MODULE, }; -#define MAX_IDLE_STATE_COUNT 2 - -static int max_idle_state = MAX_IDLE_STATE_COUNT - 1; +static int max_idle_state; static struct cpuidle_state *cpuidle_state_table; static inline void idle_loop_prolog(unsigned long *in_purr) @@ -134,7 +132,7 @@ static int shared_cede_loop(struct cpuidle_device *dev, /* * States for dedicated partition case. */ -static struct cpuidle_state dedicated_states[MAX_IDLE_STATE_COUNT] = { +static struct cpuidle_state dedicated_states[] = { { /* Snooze */ .name = "snooze", .desc = "snooze", @@ -154,7 +152,7 @@ static struct cpuidle_state dedicated_states[MAX_IDLE_STATE_COUNT] = { /* * States for shared partition case. */ -static struct cpuidle_state shared_states[MAX_IDLE_STATE_COUNT] = { +static struct cpuidle_state shared_states[] = { { /* Shared Cede */ .name = "Shared Cede", .desc = "Shared Cede", @@ -225,12 +223,8 @@ static int pseries_cpuidle_driver_init(void) drv->state_count = 0; - for (idle_state = 0; idle_state < MAX_IDLE_STATE_COUNT; ++idle_state) { - - if (idle_state > max_idle_state) - break; - - /* is the state not enabled? */ + for (idle_state = 0; idle_state < max_idle_state; ++idle_state) { + /* Is the state not enabled? */ if (cpuidle_state_table[idle_state].enter == NULL) continue; @@ -253,16 +247,14 @@ static int pseries_idle_probe(void) if (cpuidle_disable != IDLE_NO_OVERRIDE) return -ENODEV; - if (max_idle_state == 0) { - printk(KERN_DEBUG "pseries processor idle disabled.\n"); - return -EPERM; - } - if (firmware_has_feature(FW_FEATURE_SPLPAR)) { - if (lppaca_shared_proc(get_lppaca())) + if (lppaca_shared_proc(get_lppaca())) { cpuidle_state_table = shared_states; - else + max_idle_state = ARRAY_SIZE(shared_states); + } else { cpuidle_state_table = dedicated_states; + max_idle_state = ARRAY_SIZE(dedicated_states); + } } else return -ENODEV; |