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| author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2011-12-25 16:30:40 +0100 |
|---|---|---|
| committer | Kevin Hilman <khilman@ti.com> | 2012-07-26 01:05:35 +0200 |
| commit | dd3ad97c5621aa853843dd5e6783ca787466158c (patch) | |
| tree | f19ec4e619bf5987cfdbc73246af01e4413866c7 /arch/arm/mach-pnx4008 | |
| parent | ARM: OMAP: timer: allow gp timer clock-event to be used on both cpus (diff) | |
| download | linux-dd3ad97c5621aa853843dd5e6783ca787466158c.tar.xz linux-dd3ad97c5621aa853843dd5e6783ca787466158c.zip | |
ARM: OMAP4: CPUidle: Use coupled cpuidle states to implement SMP cpuidle.
OMAP4 CPUDILE driver is converted mainly based on notes from the
coupled cpuidle patch series.
The changes include :
- Register both CPUs and C-states to cpuidle driver.
- Set struct cpuidle_device.coupled_cpus
- Set struct cpuidle_device.safe_state to non coupled state.
- Set CPUIDLE_FLAG_COUPLED in struct cpuidle_state.flags for each
state that affects multiple cpus.
- Separate ->enter hooks for coupled & simple idle.
- CPU0 wait loop for CPU1 power transition.
- CPU1 wakeup mechanism for the idle exit.
- Enabling ARCH_NEEDS_CPU_IDLE_COUPLED for OMAP4.
Thanks to Kevin Hilman and Colin Cross on the suggestions/fixes
on the intermediate version of this patch.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'arch/arm/mach-pnx4008')
0 files changed, 0 insertions, 0 deletions