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From: Suman Anna <s-anna@ti.com>
To: "santosh.shilimkar@oracle.com" <santosh.shilimkar@oracle.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	Vitaly Andrianov <vitalya@ti.com>,
	Russell King <linux@armlinux.org.uk>,
	Tero Kristo <t-kristo@ti.com>, Rob Herring <robh+dt@kernel.org>,
	Murali Karicheri <m-karicheri2@ti.com>,
	Santosh Shilimkar <ssantosh@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/5] Use mmio-sram driver for Keystone MSMC RAM
Date: Fri, 6 Jan 2017 13:10:41 -0600	[thread overview]
Message-ID: <b49bfb08-292f-ee26-b385-fdba304571b0@ti.com> (raw)
In-Reply-To: <3abc3c7d-2f45-f5dd-e6f5-c03008d22d56@oracle.com>

Hi Santosh,

> 
> On 9/7/16 9:25 AM, Santosh Shilimkar wrote:
>> On 9/7/2016 9:22 AM, Suman Anna wrote:
>>> Hi Santosh,
>>>
>>> On 09/07/2016 11:11 AM, Santosh Shilimkar wrote:
>>>> Hi Suman,
>>>>
>>>> On 9/1/2016 3:58 PM, Suman Anna wrote:
>>>>> Hi,
>>>>>
>>>>> The Keystone 2 family of SoCs have an on-chip RAM called the
>>>>> Multicore Shared Memory (MSM) RAM. This RAM is accessible through
>>>>> the Multicore Shared Memory Controller (MSMC). This series represents
>>>>> these on-chip RAMs as sram nodes so that the memory allocations
>>>>> can be managed by the in-kernel mmio-sram driver.
>>>>>
>>>>> The first 4 patches adds the basic SRAM nodes on each of the SoCs,
>>>>> and the last patch enables the generic on-chip SRAM driver for
>>>>> keystone defconfig.
>>>>>
>>>> The series looks good in general but I would like to understand
>>>> the users of this memory in kernel. Is that going to be posted
>>>> as a follow up patch ? Is the Power controller going to make
>>>> use of this SRAM for PM code ?
>>>
>>> Yes, the users will eventually follow. Power Controller code is not
>>> gonna be using this SRAM, it has its own RAM. This memory is gonna be
>>> split between various functional features like IPC, OPTEE integration,
>>> we already have the Boot Monitor code using this. We will have the
>>> memory split by either having static child nodes or drivers requesting
>>> the memory using gen_pool API.
>>>
>> OK. Its good to add the code at least with one active user of it.
>> Since this has to anyway wait for another merge window, please post the
>> users of it so that I can pull the combined patchset.
>>
> Are you going to post new patchset or you dropped this series ?
> 
> If you want me to include it for next merge window, please post
> refreshed patchset.

No, haven't dropped the series, will post it today. You prefer the
series on -rc1 or -rc2, not that it makes a difference.

regards
Suman

  reply	other threads:[~2017-01-06 19:10 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-01 22:58 [PATCH 0/5] Use mmio-sram driver for Keystone MSMC RAM Suman Anna
2016-09-01 22:58 ` [PATCH 1/5] ARM: dts: keystone-k2hk: Add MSM RAM node Suman Anna
2016-09-01 22:58 ` [PATCH 2/5] ARM: dts: keystone-k2l: " Suman Anna
2016-09-01 22:58 ` [PATCH 4/5] ARM: dts: keystone-k2g: " Suman Anna
     [not found] ` <20160901225846.31058-1-s-anna-l0cyMroinI0@public.gmane.org>
2016-09-01 22:58   ` [PATCH 3/5] ARM: dts: keystone-k2e: " Suman Anna
2016-09-01 22:58   ` [PATCH 5/5] ARM: configs: keystone: Enable Generic on-chip SRAM driver Suman Anna
2016-09-07 16:11   ` [PATCH 0/5] Use mmio-sram driver for Keystone MSMC RAM Santosh Shilimkar
     [not found]     ` <d797bb0d-41b5-45a7-6faf-95baaab0215b-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2016-09-07 16:22       ` Suman Anna
     [not found]         ` <f6920801-554d-18e8-f140-44aeeb2f878e-l0cyMroinI0@public.gmane.org>
2016-09-07 16:25           ` Santosh Shilimkar
2016-09-07 16:31             ` Suman Anna
2017-01-06 18:56             ` santosh.shilimkar
2017-01-06 19:10               ` Suman Anna [this message]
2017-01-06 19:13                 ` Santosh Shilimkar

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