linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Scott Wood <oss@buserror.net>
To: roy.pledge@nxp.com, linuxppc-dev@lists.ozlabs.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, robin.murphy@arm.com
Cc: madalin.bucur@nxp.com
Subject: Re: [PATCH v2 03/11] dt-bindings: soc/fsl: Update reserved memory binding for QBMan
Date: Sun, 23 Apr 2017 20:09:57 -0500	[thread overview]
Message-ID: <1492996197.25397.12.camel@buserror.net> (raw)
In-Reply-To: <1492634930-10765-4-git-send-email-roy.pledge@nxp.com>

On Wed, 2017-04-19 at 16:48 -0400, Roy Pledge wrote:
> Updates the QMan and BMan device tree bindings for reserved memory
> nodes. This makes the reserved memory allocation compatiable with
> the shared-dma-pool usage.
> 
> Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
> ---
>  Documentation/devicetree/bindings/soc/fsl/bman.txt | 11 ++++++-----
>  Documentation/devicetree/bindings/soc/fsl/qman.txt | 18 +++++++++++-------
>  2 files changed, 17 insertions(+), 12 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/soc/fsl/bman.txt
> b/Documentation/devicetree/bindings/soc/fsl/bman.txt
> index 47ac834..3cd1e2c 100644
> --- a/Documentation/devicetree/bindings/soc/fsl/bman.txt
> +++ b/Documentation/devicetree/bindings/soc/fsl/bman.txt
> @@ -65,8 +65,8 @@ to the respective BMan instance
>  BMan Private Memory Node
>  
>  BMan requires a contiguous range of physical memory used for the backing
> store
> -for BMan Free Buffer Proxy Records (FBPR). This memory is
> reserved/allocated as a
> -node under the /reserved-memory node
> +for BMan Free Buffer Proxy Records (FBPR). This memory is
> reserved/allocated as
> +a node under the /reserved-memory node.
>  
>  The BMan FBPR memory node must be named "bman-fbpr"
>  
> @@ -75,7 +75,8 @@ PROPERTIES
>  - compatible
>  	Usage:		required
>  	Value type:	<stringlist>
> -	Definition:	Must inclide "fsl,bman-fbpr"
> +	Definition:	PPC platforms: Must include "fsl,bman-fbpr"
> +			ARM platforms: Must include "shared-dma-pool"
>  
>  The following constraints are relevant to the FBPR private memory:
>  	- The size must be 2^(size + 1), with size = 11..33. That is 4 KiB
> to
> @@ -100,10 +101,10 @@ The example below shows a BMan FBPR dynamic allocation
> memory node
>  		ranges;
>  
>  		bman_fbpr: bman-fbpr {
> -			compatible = "fsl,bman-fbpr";
> -			alloc-ranges = <0 0 0x10 0>;
> +			compatible = "shared-mem-pool";
>  			size = <0 0x1000000>;
>  			alignment = <0 0x1000000>;
> +			no-map;
>  		};
>  	};
>  

The requirement for using no-map with shared-mem-pool should be explicitly
stated, not just in the example.

-Scott

  reply	other threads:[~2017-04-24  1:10 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-19 20:48 [PATCH v2 00/11] soc/fsl/qbman: Enable QBMan on ARM Platforms Roy Pledge
2017-04-19 20:48 ` [PATCH v2 01/11] soc/fsl/qbman: Use shared-dma-pool for BMan private memory allocations Roy Pledge
2017-04-19 20:48 ` [PATCH v2 02/11] soc/fsl/qbman: Use shared-dma-pool for QMan " Roy Pledge
2017-04-24  1:44   ` Scott Wood
2017-04-19 20:48 ` [PATCH v2 03/11] dt-bindings: soc/fsl: Update reserved memory binding for QBMan Roy Pledge
2017-04-24  1:09   ` Scott Wood [this message]
2017-04-19 20:48 ` [PATCH v2 04/11] soc/fsl/qbman: Drop set/clear_bits usage Roy Pledge
2017-04-19 20:48 ` [PATCH v2 05/11] soc/fsl/qbman: Drop L1_CACHE_BYTES compile time check Roy Pledge
2017-04-19 20:48 ` [PATCH v2 06/11] soc/fsl/qbman: Fix ARM32 typo Roy Pledge
2017-04-19 20:48 ` [PATCH v2 07/11] soc/fsl/qbman: Rework ioremap() calls for ARM/PPC Roy Pledge
2017-04-24  1:47   ` Scott Wood
2017-05-01 19:00     ` Roy Pledge
2017-04-19 20:48 ` [PATCH v2 08/11] soc/fsl/qbman: add QMAN_REV32 Roy Pledge
2017-04-19 20:48 ` [PATCH v2 09/11] soc/fsl/qbman: different register offsets on ARM Roy Pledge
2017-04-19 20:48 ` [PATCH v2 10/11] soc/fsl/qbman: Add missing headers " Roy Pledge
2017-04-19 20:48 ` [PATCH v2 11/11] fsl/soc/qbman: Enable FSL_LAYERSCAPE config " Roy Pledge

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1492996197.25397.12.camel@buserror.net \
    --to=oss@buserror.net \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=madalin.bucur@nxp.com \
    --cc=robin.murphy@arm.com \
    --cc=roy.pledge@nxp.com \
    --subject='Re: [PATCH v2 03/11] dt-bindings: soc/fsl: Update reserved memory binding for QBMan' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).