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| author | Paul Burton <paul.burton@imgtec.com> | 2014-04-14 16:25:29 +0100 |
|---|---|---|
| committer | Paul Burton <paul.burton@imgtec.com> | 2014-05-28 16:20:36 +0100 |
| commit | d050894435cdc78807e714a0148527542a583e87 (patch) | |
| tree | 39f95ee57dbe42e78945365e2b166161a24cc804 /drivers/cpuidle/Makefile | |
| parent | f08dbf8a61462aa122b9b5077849a3f4bd84702a (diff) | |
| download | lwn-d050894435cdc78807e714a0148527542a583e87.tar.gz lwn-d050894435cdc78807e714a0148527542a583e87.zip | |
cpuidle: cpuidle-cps: add MIPS CPS cpuidle driver
This patch adds a cpuidle driver for systems based around the MIPS
Coherent Processing System (CPS) architecture. It supports four idle
states:
- The standard MIPS wait instruction.
- The non-coherent wait, clock gated & power gated states exposed by
the recently added pm-cps layer.
The pm-cps layer is used to enter all the deep idle states. Since cores
in the clock or power gated states cannot service interrupts, the
gic_send_ipi_single function is modified to send a power up command for
the appropriate core to the CPC in cases where the target CPU has marked
itself potentially incoherent.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Diffstat (limited to 'drivers/cpuidle/Makefile')
| -rw-r--r-- | drivers/cpuidle/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile index f71ae1b373c5..a7fc96bcf319 100644 --- a/drivers/cpuidle/Makefile +++ b/drivers/cpuidle/Makefile @@ -15,6 +15,10 @@ obj-$(CONFIG_ARM_U8500_CPUIDLE) += cpuidle-ux500.o obj-$(CONFIG_ARM_AT91_CPUIDLE) += cpuidle-at91.o ############################################################################### +# MIPS drivers +obj-$(CONFIG_MIPS_CPS_CPUIDLE) += cpuidle-cps.o + +############################################################################### # POWERPC drivers obj-$(CONFIG_PSERIES_CPUIDLE) += cpuidle-pseries.o obj-$(CONFIG_POWERNV_CPUIDLE) += cpuidle-powernv.o |