[2/4] ARM: shmobile: defconfig: Enable CMA for DMA

Message ID	77af670a7698bbc4dc9fd8bbd553b33bfb16b68a.1483701293.git.horms+renesas@verge.net.au
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Headers	show Return-Path: <linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org> From: Simon Horman <horms+renesas@verge.net.au> To: linux-renesas-soc@vger.kernel.org Subject: [PATCH 2/4] ARM: shmobile: defconfig: Enable CMA for DMA Date: Fri, 6 Jan 2017 12:18:10 +0100 Message-Id: <77af670a7698bbc4dc9fd8bbd553b33bfb16b68a.1483701293.git.horms+renesas@verge.net.au> In-Reply-To: <cover.1483701293.git.horms+renesas@verge.net.au> References: <cover.1483701293.git.horms+renesas@verge.net.au> MIME-Version: 1.0 summary: Content analysis details: (-7.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [202.4.237.240 listed in list.dnswl.org] 0.0 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different -3.2 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature Precedence: list Cc: Simon Horman <horms+renesas@verge.net.au>, =?UTF-8?q?Niklas=20S=C3=B6derlund?= <niklas.soderlund+renesas@ragnatech.se>, Magnus Damm <magnus.damm@gmail.com>, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org

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77af670a7698bbc4dc9fd8bbd553b33bfb16b68a.1483701293.git.horms+renesas@verge.net.au

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New

Headers

From: Simon Horman <horms+renesas@verge.net.au>
To: linux-renesas-soc@vger.kernel.org
Subject: [PATCH 2/4] ARM: shmobile: defconfig: Enable CMA for DMA
Date: Fri,  6 Jan 2017 12:18:10 +0100
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Commit Message

Simon Horman Jan. 6, 2017, 11:18 a.m. UTC

From: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

To be able to use VIN with larger frame sizes CMA memory are needed for
DMA. If this is not enabled trying to capture large frames can result in
errors such as:

rcar-vin e6ef0000.video: dma_alloc_coherent of size 8388608 failed

A CMA area of 64MB are needed for v4l2-compliance to pass on all formats
on the largest possible frame size of 2048x2048.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/configs/shmobile_defconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index 98e9ce66740d..b66e17aec058 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -33,6 +33,7 @@  CONFIG_HAVE_ARM_ARCH_TIMER=y
 CONFIG_NR_CPUS=8
 CONFIG_AEABI=y
 CONFIG_HIGHMEM=y
+CONFIG_CMA=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_ARM_APPENDED_DTB=y
@@ -58,6 +59,8 @@  CONFIG_CAN_RCAR=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=64
 CONFIG_SIMPLE_PM_BUS=y
 CONFIG_MTD=y
 CONFIG_MTD_BLOCK=y

[2/4] ARM: shmobile: defconfig: Enable CMA for DMA

Commit Message

Patch