From: Shawn Guo <shawnguo@kernel.org>
To: Rui Miguel Silva <rui.silva@linaro.org>
Cc: devel@driverdev.osuosl.org, devicetree@vger.kernel.org,
sakari.ailus@linux.intel.com,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Ryan Harkin <ryan.harkin@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Steve Longerbeam <slongerbeam@gmail.com>,
Fabio Estevam <fabio.estevam@nxp.com>,
mchehab@kernel.org, linux-media@vger.kernel.org
Subject: Re: [PATCH v2 07/15] ARM: dts: increase default cma size to 40MB
Date: Thu, 3 May 2018 10:40:12 +0800 [thread overview]
Message-ID: <20180503024011.GP3443@dragon> (raw)
In-Reply-To: <20180423134750.30403-8-rui.silva@linaro.org>
On Mon, Apr 23, 2018 at 02:47:42PM +0100, Rui Miguel Silva wrote:
> To support camera in i.MX7 the cma heap is used to allocate frame buffers. The
> default size of CMA is 16MB which is not enough for higher resolutions (ex:
> 1600x1200).
>
> So, increase the default CMA size to 40MB.
>
> Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
CMA size can be adjusted by kernel cmdline. I'm not sure it's necessary
to make it fixed in DT.
Shawn
> ---
> arch/arm/boot/dts/imx7s.dtsi | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
> index 4d42335c0dee..142ea709d296 100644
> --- a/arch/arm/boot/dts/imx7s.dtsi
> +++ b/arch/arm/boot/dts/imx7s.dtsi
> @@ -182,6 +182,20 @@
> <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
> };
>
> + reserved-memory {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + /* global autoconfigured region for contiguous allocations */
> + linux,cma {
> + compatible = "shared-dma-pool";
> + reusable;
> + size = <0x2800000>;
> + linux,cma-default;
> + };
> + };
> +
> soc {
> #address-cells = <1>;
> #size-cells = <1>;
> --
> 2.17.0
>
WARNING: multiple messages have this Message-ID (diff)
From: Shawn Guo <shawnguo@kernel.org>
To: Rui Miguel Silva <rui.silva@linaro.org>
Cc: mchehab@kernel.org, sakari.ailus@linux.intel.com,
Steve Longerbeam <slongerbeam@gmail.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Rob Herring <robh+dt@kernel.org>,
linux-media@vger.kernel.org, devel@driverdev.osuosl.org,
Fabio Estevam <fabio.estevam@nxp.com>,
devicetree@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Ryan Harkin <ryan.harkin@linaro.org>
Subject: Re: [PATCH v2 07/15] ARM: dts: increase default cma size to 40MB
Date: Thu, 3 May 2018 10:40:12 +0800 [thread overview]
Message-ID: <20180503024011.GP3443@dragon> (raw)
In-Reply-To: <20180423134750.30403-8-rui.silva@linaro.org>
On Mon, Apr 23, 2018 at 02:47:42PM +0100, Rui Miguel Silva wrote:
> To support camera in i.MX7 the cma heap is used to allocate frame buffers. The
> default size of CMA is 16MB which is not enough for higher resolutions (ex:
> 1600x1200).
>
> So, increase the default CMA size to 40MB.
>
> Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
CMA size can be adjusted by kernel cmdline. I'm not sure it's necessary
to make it fixed in DT.
Shawn
> ---
> arch/arm/boot/dts/imx7s.dtsi | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
> index 4d42335c0dee..142ea709d296 100644
> --- a/arch/arm/boot/dts/imx7s.dtsi
> +++ b/arch/arm/boot/dts/imx7s.dtsi
> @@ -182,6 +182,20 @@
> <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
> };
>
> + reserved-memory {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + /* global autoconfigured region for contiguous allocations */
> + linux,cma {
> + compatible = "shared-dma-pool";
> + reusable;
> + size = <0x2800000>;
> + linux,cma-default;
> + };
> + };
> +
> soc {
> #address-cells = <1>;
> #size-cells = <1>;
> --
> 2.17.0
>
next prev parent reply other threads:[~2018-05-03 2:40 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-23 13:47 [PATCH v2 00/15] media: staging/imx7: add i.MX7 media driver Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 01/15] media: staging/imx: add support to media dev for no IPU systems Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 02/15] media: staging/imx7: add imx7 CSI subdev driver Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 03/15] clk: imx7d: fix mipi dphy div parent Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-05-01 22:11 ` Stephen Boyd
2018-05-01 22:11 ` Stephen Boyd
2018-05-03 1:08 ` Shawn Guo
2018-05-03 1:08 ` Shawn Guo
2018-05-03 1:50 ` A.s. Dong
2018-05-03 1:50 ` A.s. Dong
2018-05-03 1:50 ` A.s. Dong
2018-04-23 13:47 ` [PATCH v2 04/15] clk: imx7d: reset parent for mipi csi root Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-05-03 2:27 ` Shawn Guo
2018-05-03 2:27 ` Shawn Guo
2018-04-23 13:47 ` [PATCH v2 05/15] media: staging/imx7: add MIPI CSI-2 receiver subdev for i.MX7 Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 06/15] media: staging/imx: add imx7 capture subsystem Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 15:48 ` Philipp Zabel
2018-04-23 15:48 ` Philipp Zabel
2018-04-24 8:46 ` Rui Miguel Silva
2018-04-24 8:46 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 07/15] ARM: dts: increase default cma size to 40MB Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-05-03 2:40 ` Shawn Guo [this message]
2018-05-03 2:40 ` Shawn Guo
2018-04-23 13:47 ` [PATCH v2 08/15] media: dt-bindings: add bindings for i.MX7 media driver Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-27 19:06 ` Rob Herring
2018-04-27 19:06 ` Rob Herring
2018-05-07 16:28 ` Rui Miguel Silva
2018-05-07 16:28 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 09/15] ARM: dts: imx7s: add mipi phy power domain Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 10/15] ARM: dts: imx7s: add multiplexer controls Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-05-03 3:05 ` Shawn Guo
2018-05-03 3:05 ` Shawn Guo
2018-04-23 13:47 ` [PATCH v2 11/15] ARM: dts: imx7: Add video mux, csi and mipi_csi and connections Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 15:46 ` Philipp Zabel
2018-04-23 15:46 ` Philipp Zabel
2018-04-24 8:50 ` Rui Miguel Silva
2018-04-24 8:50 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 12/15] ARM: dts: imx7s: add capture subsystem Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 13/15] ARM: dts: imx7s-warp: add ov2680 sensor node Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 14/15] media: imx7.rst: add documentation for i.MX7 media driver Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
2018-04-23 13:47 ` [PATCH v2 15/15] media: staging/imx: add i.MX7 entries to TODO file Rui Miguel Silva
2018-04-23 13:47 ` Rui Miguel Silva
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=20180503024011.GP3443@dragon \
--to=shawnguo@kernel.org \
--cc=devel@driverdev.osuosl.org \
--cc=devicetree@vger.kernel.org \
--cc=fabio.estevam@nxp.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-media@vger.kernel.org \
--cc=mchehab@kernel.org \
--cc=p.zabel@pengutronix.de \
--cc=robh+dt@kernel.org \
--cc=rui.silva@linaro.org \
--cc=ryan.harkin@linaro.org \
--cc=sakari.ailus@linux.intel.com \
--cc=slongerbeam@gmail.com \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.