linux-kernel - Re: [net-next PATCH v3 01/11] soc: ti: K2G: enhancement to support QMSS in K2G NAVSS

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Date:   Mon, 9 Apr 2018 16:12:44 -0500
From:   Rob Herring <robh@...nel.org>
To:     Murali Karicheri <m-karicheri2@...com>
Cc:     mark.rutland@....com, ssantosh@...nel.org, malat@...ian.org,
        w-kwok2@...com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [net-next PATCH v3 01/11] soc: ti: K2G: enhancement to support
 QMSS in K2G NAVSS

On Mon, Apr 02, 2018 at 10:37:51AM -0400, Murali Karicheri wrote:
> Navigator Subsystem (NAVSS) available on K2G SoC has a cut down
> version of QMSS with less number of queues, internal linking ram
> with lesser number of buffers etc.  It doesn't have status and
> explicit push register space as in QMSS available on other K2 SoCs.
> So define reg indices specific to QMSS on K2G. This patch introduces
> "ti,66ak2g-navss-qm" compatibility to identify QMSS on K2G NAVSS
> and to customize the dts handling code. Per Device manual,
> descriptors with index less than or equal to regions0_size is in region 0
> in the case of K2 QMSS where as for QMSS on K2G, descriptors with index
> less than regions0_size is in region 0. So update the size accordingly in
> the regions0_size bits of the linking ram size 0 register.
> 
> Signed-off-by: Murali Karicheri <m-karicheri2@...com>
> Signed-off-by: WingMan Kwok <w-kwok2@...com>
> ---
>  .../bindings/soc/ti/keystone-navigator-qmss.txt    |  9 ++-

Reviewed-by: Rob Herring <robh@...nel.org>

>  drivers/soc/ti/knav_qmss.h                         |  6 ++
>  drivers/soc/ti/knav_qmss_queue.c                   | 90 ++++++++++++++++------
>  3 files changed, 82 insertions(+), 23 deletions(-)