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Author	SHA1	Message	Date
Matt Redfearn	72bc8c75ea	cpuidle: cpuidle-cps: Enable use with MIPSr6 CPUs. This patch enables the MIPS CPS driver for MIPSr6 CPUs. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Reviewed-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: linux-mips@linux-mips.org Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/14228/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>	2016-10-04 16:13:57 +02:00
Markos Chandras	39a5959355	MIPS: Kconfig: Add missing MIPS_CPS dependencies to PM and cpuidle The MIPS_CPS_PM and MIPS_CPS_CPUIDLE implementation should depend on the MIPS_CPS symbol to avoid the following build problem arch/mips/kernel/pm-cps.c: In function 'cps_pm_enter_state': arch/mips/kernel/pm-cps.c:164:26: error: 'cpu_coherent_mask' undeclared (first use in this function) cpumask_clear_cpu(cpu, &cpu_coherent_mask); ^ Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/7798/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>	2014-10-23 19:58:05 +02:00
Paul Burton	d050894435	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>	2014-05-28 16:20:36 +01:00

Author

SHA1

Message

Date

Matt Redfearn

72bc8c75ea

cpuidle: cpuidle-cps: Enable use with MIPSr6 CPUs.

This patch enables the MIPS CPS driver for MIPSr6 CPUs.

Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: linux-mips@linux-mips.org
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14228/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2016-10-04 16:13:57 +02:00

Markos Chandras

39a5959355

MIPS: Kconfig: Add missing MIPS_CPS dependencies to PM and cpuidle

The MIPS_CPS_PM and MIPS_CPS_CPUIDLE implementation should depend
on the MIPS_CPS symbol to avoid the following build problem

arch/mips/kernel/pm-cps.c: In function 'cps_pm_enter_state':
arch/mips/kernel/pm-cps.c:164:26: error: 'cpu_coherent_mask' undeclared
(first use in this function)
cpumask_clear_cpu(cpu, &cpu_coherent_mask);
                            ^
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/7798/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2014-10-23 19:58:05 +02:00

Paul Burton

d050894435

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>

2014-05-28 16:20:36 +01:00

3 Commits