On Wed, 2016-06-22 at 11:54 +1000, Benjamin Herrenschmidt wrote:

On Wed, 2016-06-08 at 11:54 -0500, Shreyas B. Prabhu wrote:

quoted

=20
pnv_init_idle_states discovers supported idle states from the
device tree and does the required initialization. Set power_save
function pointer only after this initialization is done
=20
Reviewed-by: Gautham R. Shenoy <redacted>
Signed-off-by: Shreyas B. Prabhu <redacted>

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
=20
Please merge that one as-is now, no need to wait for the rest, as
otherwise pwoer9 crashes at boot. It doesn't need to wait for the
rest of the series.

Acked-by: Michael Neuling <redacted>

For the same reason. Without this we need powersave=3Doff on the cmdline on
POWER9.

Mikey

=20
Cheers,
Ben.
=20

quoted

=20
---
- No changes since v1
=20
=C2=A0arch/powerpc/platforms/powernv/idle.c=C2=A0=C2=A0| 3 +++
=C2=A0arch/powerpc/platforms/powernv/setup.c | 2 +-
=C2=A02 files changed, 4 insertions(+), 1 deletion(-)
=20

diff --git a/arch/powerpc/platforms/powernv/idle.c

b/arch/powerpc/platforms/powernv/idle.c
index fcc8b68..fbb09fb 100644

--- a/arch/powerpc/platforms/powernv/idle.c
+++ b/arch/powerpc/platforms/powernv/idle.c

@@ -285,6 +285,9 @@ static int __init pnv_init_idle_states(void)

=C2=A0	}
=C2=A0
=C2=A0	pnv_alloc_idle_core_states();
+
+	if (supported_cpuidle_states & OPAL_PM_NAP_ENABLED)
+		ppc_md.power_save =3D power7_idle;
=C2=A0out_free:
=C2=A0	kfree(flags);
=C2=A0out:

diff --git a/arch/powerpc/platforms/powernv/setup.c

b/arch/powerpc/platforms/powernv/setup.c
index ee6430b..8492bbb 100644

--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c

@@ -315,7 +315,7 @@ define_machine(powernv) {

=C2=A0	.get_proc_freq=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=

=C2=A0=C2=A0=3D pnv_get_proc_freq,

quoted

=C2=A0	.progress		=3D pnv_progress,
=C2=A0	.machine_shutdown	=3D pnv_shutdown,
-	.power_save=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=

=A0=C2=A0=C2=A0=C2=A0=3D power7_idle,

quoted

+	.power_save=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=

=A0=C2=A0=C2=A0=C2=A0=3D NULL,

quoted

=C2=A0	.calibrate_decr		=3D generic_calibrate_decr,
=C2=A0#ifdef CONFIG_KEXEC
=C2=A0	.kexec_cpu_down		=3D pnv_kexec_cpu_down,