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From: loic pallardy <loic.pallardy@st.com>
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: <ohad@wizery.com>, <lee.jones@linaro.org>,
	<linux-remoteproc@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <kernel@stlinux.com>
Subject: Re: [PATCH v2 07/19] remoteproc: Add new resource type for resource table spare bytes
Date: Fri, 16 Sep 2016 11:02:56 +0200	[thread overview]
Message-ID: <bb1b93f7-a06d-e173-50f9-cc6ba38a29f1@st.com> (raw)
In-Reply-To: <20160915175432.GF21438@tuxbot>



On 09/15/2016 07:54 PM, Bjorn Andersson wrote:
> On Wed 31 Aug 13:50 PDT 2016, Loic Pallardy wrote:
>
>> To allow resource appending to an existing resource table,
>> remoteproc framework should get information about resource
>> table spare area. With current resource table construction,
>> remoteproc is not able to identify by itself any free location.
>> This patch introduces a new resource type named RSC_SPARE which
>> allows firmware to define room for resource table extension.
>> Defined spare area will be used by remtoreproc to extend resource
>> table.
>>
>
> We don't need a dummy type for keeping track of the available room in
> the resource table in the loaded firmware. All we need to do is to look
> at the sh_size of the .resource_table section, which actually is what's
> returned in tablesz.
>
This is the size of the .resource_table section. Doesn't means that only 
resource table is stored in. Today this is the assumption and we force 
firmware to respect this.

> So the spare size is the difference between tablesz and the end of the
> last resource and if you need you can pad this when composing the
> firmware.
>
Proposal was to clearly identify the area for extension (whatever 
.resource_table section is done). But if you agree on the fact 
.resource_tabel section constains only resource table and eventualy room 
for extension, I can indeed simply room detection.

Regards,
Loic

> Regards,
> Bjorn
>

  reply	other threads:[~2016-09-16  9:03 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-31 20:50 [PATCH v2 00/19] remoteproc: Allow platform-specific drivers to request resources Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 01/19] remoteproc: core: New API to add new resources to the resource table Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 02/19] remoteproc: core: Add function to dump " Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 03/19] remoteproc: core: Add function to amend an existing resource table entry Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 04/19] remoteproc: core: Add function to append a new " Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 05/19] remoteproc: core: Add function to over-ride current resource table Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 06/19] remoteproc: core: Add explicit message error if cached table failed Loic Pallardy
2016-09-01  7:09   ` Lee Jones
2016-09-08  9:40     ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 07/19] remoteproc: Add new resource type for resource table spare bytes Loic Pallardy
2016-09-15 17:54   ` Bjorn Andersson
2016-09-16  9:02     ` loic pallardy [this message]
2016-09-16 17:12       ` Bjorn Andersson
2016-09-19  7:50         ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 08/19] remoteproc: core: Associate action to resource request Loic Pallardy
2016-09-01  7:23   ` Lee Jones
2016-09-08  9:43     ` loic pallardy
2016-09-08 11:03       ` Lee Jones
2016-08-31 20:50 ` [PATCH v2 09/19] remoteproc: core: Finalize dump resource table function Loic Pallardy
2016-09-08  8:26   ` Lee Jones
2016-09-08  9:46     ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 10/19] remoteproc: core: Add function to verify an existing resource in rsc table Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 11/19] remoteproc: core: Add function to get resource table spare bytes information Loic Pallardy
2016-09-08  8:32   ` Lee Jones
2016-09-08  9:47     ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 12/19] remoteproc: core: Add vdev support and force mode to resource amending function Loic Pallardy
2016-09-08  8:48   ` Lee Jones
2016-09-08  9:49     ` loic pallardy
2016-09-08 11:02       ` Lee Jones
2016-09-08 13:11         ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 13/19] remoteproc: core: Append resource only if spare resource present Loic Pallardy
2016-09-08  9:33   ` Lee Jones
2016-09-08  9:54     ` loic pallardy
2016-09-08 11:00       ` Lee Jones
2016-08-31 20:50 ` [PATCH v2 14/19] remoteproc: core: Add resource request action support Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 15/19] remoteproc: core: Add function to verify resource table consistency Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 16/19] remoteproc: core: Clean-up resource table sanity checks Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 17/19] remotecore: core: Add resource table pointer argument to rproc_handle_resource Loic Pallardy
2016-08-31 20:50 ` [PATCH v2 18/19] remoteproc: core: Add function to create remoteproc local resource table Loic Pallardy
2016-09-08 10:20   ` Lee Jones
2016-09-08 13:15     ` loic pallardy
2016-09-15 18:58   ` Bjorn Andersson
2016-09-19  7:46     ` loic pallardy
2016-08-31 20:50 ` [PATCH v2 19/19] remoteproc: core: Support empty resource tables Loic Pallardy

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