linux-kernel - Re: [PATCH 3/4] iommu/exynos: Add iommu driver for Exynos4 Platforms

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Date:	Sat, 24 Sep 2011 15:59:01 +0800
From:	jiaweiwei <jiaweiwei.xiyou@...il.com>
To:	KyongHo Cho <pullip.cho@...sung.com>
Cc:	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"joerg.roedel@....com" <joerg.roedel@....com>,
	이상현 <sanghyun75.lee@...sung.com>,
	김국진 <kgene.kim@...sung.com>,
	김영락 <younglak1004.kim@...sung.com>,
	"ohad@...ery.com" <ohad@...ery.com>
Subject: Re: [PATCH 3/4] iommu/exynos: Add iommu driver for Exynos4 Platforms

2011/9/24 KyongHo Cho <pullip.cho@...sung.com>
>
> I am very sorry about the duplicate emails
> and the second email of this patch is incorrect.
> My email system may have some problem :(
>
> Regards,
>
> Cho KyongHo
>
> 2011/9/24 조경호 <pullip.cho@...sung.com>:
> > This is the System MMU driver and IOMMU API implementation for
> > Exynos4 SOC platforms. Exynos4 platforms has more than 10 System
> > MMUs dedicated for each multimedia accellerators.
> >
> > Signed-off-by: KyongHo Cho
> > ---
> > drivers/iommu/Kconfig        |   14 +
> > drivers/iommu/Makefile       |    1 +
> > drivers/iommu/exynos_iommu.c |  859 ++++++++++++++++++++++++++++++++++++++++++
> > 3 files changed, 874 insertions(+), 0 deletions(-)
> > create mode 100644 drivers/iommu/exynos_iommu.c
> >
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index b57b3fa..1c754cd 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
> > @@ -107,4 +107,18 @@ config INTR_REMAP
> >  To use x2apic mode in the CPU's which support x2APIC enhancements or
> >  to support platforms with CPU's having > 8 bit APIC ID, say Y.
> >
> > +# EXYNOS IOMMU support
> > +config EXYNOS_IOMMU
> > + bool "Exynos IOMMU Support"
> > + depends on ARCH_EXYNOS4
> > + select IOMMU_API
> > + select EXYNOS4_DEV_SYSMMU
> > + help
> > +   Support for the IOMMUs (System MMUs) Samsung Exynos application
> > +   processor family. This enables H/W multimedia accellerators to view
> > +   non-linear physical memory chunks as a linear memory in their virtual
> > +   address spaces.
> > +
> > +   If unsure, say N here.
> > +
> > endif # IOMMU_SUPPORT
> > diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile
> > index 4d4d77d..1eb924f 100644
> > --- a/drivers/iommu/Makefile
> > +++ b/drivers/iommu/Makefile
> > @@ -3,3 +3,4 @@ obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o msm_iommu_dev.o
> > obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o amd_iommu_init.o
> > obj-$(CONFIG_DMAR) += dmar.o iova.o intel-iommu.o
> > obj-$(CONFIG_INTR_REMAP) += dmar.o intr_remapping.o
> > +obj-$(CONFIG_EXYNOS_IOMMU) += exynos_iommu.o
> > diff --git a/drivers/iommu/exynos_iommu.c b/drivers/iommu/exynos_iommu.c
> > new file mode 100644
> > index 0000000..fe5b5d8
> > --- /dev/null
> > +++ b/drivers/iommu/exynos_iommu.c
> > @@ -0,0 +1,859 @@
> > +/* linux/drivers/iommu/exynos_iommu.c
> > + *
> > + * Copyright (c) 2011 Samsung Electronics Co., Ltd.
> > + * http://www.samsung.com
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License version 2 as
> > + * published by the Free Software Foundation.
> > + */
> > +
> > +#include
> > +#include
> > +#include
> > +#include

Hi KyongHo,
You have lost the header file. I can just see "#include". Please check your
patch again.

Thanks
Harry Wei
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