From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Michael Neuling <mikey@neuling.org>,
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
"Shreyas B. Prabhu" <shreyasbp@gmail.com>,
Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>,
Stewart Smith <stewart@linux.vnet.ibm.com>,
Balbir Singh <bsingharora@gmail.com>,
"Oliver O'Halloran" <oohall@gmail.com>,
Rob Herring <robh+dt@kernel.org>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
"Gautham R. Shenoy" <ego@linux.vnet.ibm.com>,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [v6,1/5] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro
Date: Wed, 1 Feb 2017 12:05:30 +1100 (AEDT) [thread overview]
Message-ID: <3vClL26Q2hz9rxw@ozlabs.org> (raw)
In-Reply-To: <1485333389-5752-2-git-send-email-ego@linux.vnet.ibm.com>
On Wed, 2017-01-25 at 08:36:25 UTC, "Gautham R. Shenoy" wrote:
> From: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
>
> Currently all the low-power idle states are expected to wake up
> at reset vector 0x100. Which is why the macro IDLE_STATE_ENTER_SEQ
> that puts the CPU to an idle state and never returns.
>
> On ISA v3.0, when the ESL and EC bits in the PSSCR are zero, the CPU
> is expected to wake up at the next instruction of the idle
> instruction.
>
> This patch adds a new macro named IDLE_STATE_ENTER_SEQ_NORET for the
> no-return variant and reuses the name IDLE_STATE_ENTER_SEQ
> for a variant that allows resuming operation at the instruction next
> to the idle-instruction.
>
> Acked-by: Balbir Singh <bsingharora@gmail.com>
> Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Series applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/823b7bd5156a93872d9561b3f033df
cheers
next prev parent reply other threads:[~2017-02-01 1:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-25 8:36 [PATCH v6 0/5] powernv:stop: Use psscr_val,mask provided by firmware Gautham R. Shenoy
2017-01-25 8:36 ` [PATCH v6 1/5] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro Gautham R. Shenoy
2017-02-01 1:05 ` Michael Ellerman [this message]
2017-01-25 8:36 ` [PATCH v6 2/5] powernv:stop: Rename pnv_arch300_idle_init to pnv_power9_idle_init Gautham R. Shenoy
2017-01-25 8:36 ` [PATCH v6 3/5] cpuidle:powernv: Add helper function to populate powernv idle states Gautham R. Shenoy
2017-01-30 3:47 ` Michael Ellerman
2017-01-30 7:12 ` Rafael J. Wysocki
2017-01-30 11:17 ` Michael Ellerman
2017-01-30 11:41 ` Gautham R Shenoy
2017-01-25 8:36 ` [PATCH v6 4/5] powernv: Pass PSSCR value and mask to power9_idle_stop Gautham R. Shenoy
2017-01-25 8:36 ` [PATCH v6 5/5] Documentation:powerpc: Add device-tree bindings for power-mgt Gautham R. Shenoy
2017-01-30 17:49 ` Rob Herring
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