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| author | Deepthi Dharwar <deepthi@linux.vnet.ibm.com> | 2011-10-28 12:50:33 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-11-07 03:13:49 +0100 |
| commit | 4202735e8ab6ecfb0381631a0d0b58fefe0bd4e2 (patch) | |
| tree | 189e5aab466995128c5a9d5a2a4075a5db530674 /drivers/cpuidle/cpuidle.c | |
| parent | cpuidle: Remove CPUIDLE_FLAG_IGNORE and dev->prepare() (diff) | |
| download | linux-4202735e8ab6ecfb0381631a0d0b58fefe0bd4e2.tar.xz linux-4202735e8ab6ecfb0381631a0d0b58fefe0bd4e2.zip | |
cpuidle: Split cpuidle_state structure and move per-cpu statistics fields
This is the first step towards global registration of cpuidle
states. The statistics used primarily by the governor are per-cpu
and have to be split from rest of the fields inside cpuidle_state,
which would be made global i.e. single copy. The driver_data field
is also per-cpu and moved.
Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com>
Tested-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/cpuidle/cpuidle.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index f66bcf9bfe93..7127e92fa8a1 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -105,9 +105,9 @@ int cpuidle_idle_call(void) /* This can be moved to within driver enter routine * but that results in multiple copies of same code. */ - dev->states[entered_state].time += + dev->states_usage[entered_state].time += (unsigned long long)dev->last_residency; - dev->states[entered_state].usage++; + dev->states_usage[entered_state].usage++; } /* give the governor an opportunity to reflect on the outcome */ @@ -186,8 +186,9 @@ static int poll_idle(struct cpuidle_device *dev, int index) static void poll_idle_init(struct cpuidle_device *dev) { struct cpuidle_state *state = &dev->states[0]; + struct cpuidle_state_usage *state_usage = &dev->states_usage[0]; - cpuidle_set_statedata(state, NULL); + cpuidle_set_statedata(state_usage, NULL); snprintf(state->name, CPUIDLE_NAME_LEN, "POLL"); snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE"); @@ -235,8 +236,8 @@ int cpuidle_enable_device(struct cpuidle_device *dev) goto fail_sysfs; for (i = 0; i < dev->state_count; i++) { - dev->states[i].usage = 0; - dev->states[i].time = 0; + dev->states_usage[i].usage = 0; + dev->states_usage[i].time = 0; } dev->last_residency = 0; |