From: Balbir Singh <bsingharora@gmail.com>
To: "Gautham R. Shenoy" <ego@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
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>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
mark.rutland@arm.com
Subject: Re: [PATCH v5 1/5] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro
Date: Thu, 12 Jan 2017 15:12:37 +0530 [thread overview]
Message-ID: <20170112094237.GB3006@localhost.localdomain> (raw)
In-Reply-To: <1484039224-5630-2-git-send-email-ego@linux.vnet.ibm.com>
On Tue, Jan 10, 2017 at 02:37:00PM +0530, 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.
>
> Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
> ---
> No changes from v4
>
Acked-by: Balbir Singh <bsingharora@gmail.com>
next prev parent reply other threads:[~2017-01-12 9:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-10 9:06 [PATCH v5 0/5] powernv:stop: Use psscr_val,mask provided by firmware Gautham R. Shenoy
2017-01-10 9:06 ` Gautham R. Shenoy
2017-01-10 9:07 ` [PATCH v5 1/5] powernv:idle: Add IDLE_STATE_ENTER_SEQ_NORET macro Gautham R. Shenoy
2017-01-10 9:07 ` Gautham R. Shenoy
2017-01-12 9:42 ` Balbir Singh [this message]
2017-01-10 9:07 ` [PATCH v5 2/5] powernv:stop: Uniformly rename power9 to arch300 Gautham R. Shenoy
2017-01-10 9:07 ` Gautham R. Shenoy
2017-01-12 9:47 ` Balbir Singh
2017-01-12 9:47 ` Balbir Singh
2017-01-13 3:44 ` Gautham R Shenoy
2017-01-13 3:46 ` Oliver O'Halloran
2017-01-10 9:07 ` [PATCH v5 3/5] cpuidle:powernv: Add helper function to populate powernv idle states Gautham R. Shenoy
2017-01-10 9:07 ` Gautham R. Shenoy
2017-01-12 10:04 ` Balbir Singh
2017-01-12 10:04 ` Balbir Singh
2017-01-10 9:07 ` [PATCH v5 4/5] powernv: Pass PSSCR value and mask to power9_idle_stop Gautham R. Shenoy
2017-01-10 9:07 ` Gautham R. Shenoy
2017-01-12 17:18 ` Balbir Singh
2017-01-12 17:18 ` Balbir Singh
2017-01-10 9:07 ` [PATCH v5 5/5] Documentation:powerpc: Add device-tree bindings for power-mgt Gautham R. Shenoy
2017-01-10 9:07 ` Gautham R. Shenoy
2017-01-13 16:57 ` Rob Herring
2017-01-13 16:57 ` Rob Herring
2017-01-25 8:09 ` Gautham R Shenoy
2017-01-25 8:09 ` Gautham R Shenoy
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