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From: "Heiko Stübner" <heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org>
To: Brian Norris <briannorris-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
Cc: Shunqian Zheng <zhengsq-TNX95d0MmH7DzftRWevZcw@public.gmane.org>,
	joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	mark.rutland-5wv7dgnIgG8@public.gmane.org,
	linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org,
	mark.yao-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
	airlied-cv59FeDIM0c@public.gmane.org,
	tfiga-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
	xxm-TNX95d0MmH7DzftRWevZcw@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	Tomasz Figa <tfiga-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH v5 8/8] iommu/rockchip: Enable Rockchip IOMMU on ARM64
Date: Tue, 29 Nov 2016 10:22:12 +0100	[thread overview]
Message-ID: <4463584.aXlFKgYRXe@diego> (raw)
In-Reply-To: <20161129004225.GA109697-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>

Am Montag, 28. November 2016, 16:42:27 schrieb Brian Norris:
> Hi,
> 
> On Fri, Jun 24, 2016 at 10:13:33AM +0800, Shunqian Zheng wrote:
> > From: Simon Xue <xxm-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> > 
> > This patch makes it possible to compile the rockchip-iommu driver on
> > ARM64, so that it can be used with 64-bit SoCs equipped with this type
> > of IOMMU.
> > 
> > Signed-off-by: Simon Xue <xxm-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> > Signed-off-by: Shunqian Zheng <zhengsq-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
> > Signed-off-by: Tomasz Figa <tfiga-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
> > ---
> > 
> >  drivers/iommu/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index ad08603..5572621 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
> > @@ -218,7 +218,7 @@ config OMAP_IOMMU_DEBUG
> > 
> >  config ROCKCHIP_IOMMU
> >  
> >  	bool "Rockchip IOMMU Support"
> > 
> > -	depends on ARM
> > +	depends on ARM || ARM64
> > 
> >  	depends on ARCH_ROCKCHIP || COMPILE_TEST
> >  	select IOMMU_API
> >  	select ARM_DMA_USE_IOMMU
> 
> Whatever happened with the rest of this series? Some of the IOMMU bits
> made it, but the DRM fixes never did, and so this didn't get applied.
> This leaves the whole DRM stack unusable on ARM64 Rockchip systems.
> 
> The patch context has changed a bit on patch 7 (and maybe 6?), so
> somebody will need to refresh those on the latest upstream.

I've tried forward-porting these when going through Caesars VOP dts patches, 
but was somewhat unsucessful in my small attempt at the time - see [0].


Heiko

[0] https://lkml.org/lkml/2016/11/14/519

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WARNING: multiple messages have this Message-ID (diff)
From: heiko@sntech.de (Heiko Stübner)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 8/8] iommu/rockchip: Enable Rockchip IOMMU on ARM64
Date: Tue, 29 Nov 2016 10:22:12 +0100	[thread overview]
Message-ID: <4463584.aXlFKgYRXe@diego> (raw)
In-Reply-To: <20161129004225.GA109697@google.com>

Am Montag, 28. November 2016, 16:42:27 schrieb Brian Norris:
> Hi,
> 
> On Fri, Jun 24, 2016 at 10:13:33AM +0800, Shunqian Zheng wrote:
> > From: Simon Xue <xxm@rock-chips.com>
> > 
> > This patch makes it possible to compile the rockchip-iommu driver on
> > ARM64, so that it can be used with 64-bit SoCs equipped with this type
> > of IOMMU.
> > 
> > Signed-off-by: Simon Xue <xxm@rock-chips.com>
> > Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
> > Signed-off-by: Tomasz Figa <tfiga@chromium.org>
> > ---
> > 
> >  drivers/iommu/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index ad08603..5572621 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
> > @@ -218,7 +218,7 @@ config OMAP_IOMMU_DEBUG
> > 
> >  config ROCKCHIP_IOMMU
> >  
> >  	bool "Rockchip IOMMU Support"
> > 
> > -	depends on ARM
> > +	depends on ARM || ARM64
> > 
> >  	depends on ARCH_ROCKCHIP || COMPILE_TEST
> >  	select IOMMU_API
> >  	select ARM_DMA_USE_IOMMU
> 
> Whatever happened with the rest of this series? Some of the IOMMU bits
> made it, but the DRM fixes never did, and so this didn't get applied.
> This leaves the whole DRM stack unusable on ARM64 Rockchip systems.
> 
> The patch context has changed a bit on patch 7 (and maybe 6?), so
> somebody will need to refresh those on the latest upstream.

I've tried forward-porting these when going through Caesars VOP dts patches, 
but was somewhat unsucessful in my small attempt at the time - see [0].


Heiko

[0] https://lkml.org/lkml/2016/11/14/519

WARNING: multiple messages have this Message-ID (diff)
From: "Heiko Stübner" <heiko@sntech.de>
To: Brian Norris <briannorris@chromium.org>
Cc: Shunqian Zheng <zhengsq@rock-chips.com>,
	joro@8bytes.org, robh+dt@kernel.org, mark.rutland@arm.com,
	linux@armlinux.org.uk, mark.yao@rock-chips.com, airlied@linux.ie,
	tfiga@google.com, xxm@rock-chips.com, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Tomasz Figa <tfiga@chromium.org>,
	linux-rockchip@lists.infradead.org,
	iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 8/8] iommu/rockchip: Enable Rockchip IOMMU on ARM64
Date: Tue, 29 Nov 2016 10:22:12 +0100	[thread overview]
Message-ID: <4463584.aXlFKgYRXe@diego> (raw)
In-Reply-To: <20161129004225.GA109697@google.com>

Am Montag, 28. November 2016, 16:42:27 schrieb Brian Norris:
> Hi,
> 
> On Fri, Jun 24, 2016 at 10:13:33AM +0800, Shunqian Zheng wrote:
> > From: Simon Xue <xxm@rock-chips.com>
> > 
> > This patch makes it possible to compile the rockchip-iommu driver on
> > ARM64, so that it can be used with 64-bit SoCs equipped with this type
> > of IOMMU.
> > 
> > Signed-off-by: Simon Xue <xxm@rock-chips.com>
> > Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
> > Signed-off-by: Tomasz Figa <tfiga@chromium.org>
> > ---
> > 
> >  drivers/iommu/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> > index ad08603..5572621 100644
> > --- a/drivers/iommu/Kconfig
> > +++ b/drivers/iommu/Kconfig
> > @@ -218,7 +218,7 @@ config OMAP_IOMMU_DEBUG
> > 
> >  config ROCKCHIP_IOMMU
> >  
> >  	bool "Rockchip IOMMU Support"
> > 
> > -	depends on ARM
> > +	depends on ARM || ARM64
> > 
> >  	depends on ARCH_ROCKCHIP || COMPILE_TEST
> >  	select IOMMU_API
> >  	select ARM_DMA_USE_IOMMU
> 
> Whatever happened with the rest of this series? Some of the IOMMU bits
> made it, but the DRM fixes never did, and so this didn't get applied.
> This leaves the whole DRM stack unusable on ARM64 Rockchip systems.
> 
> The patch context has changed a bit on patch 7 (and maybe 6?), so
> somebody will need to refresh those on the latest upstream.

I've tried forward-porting these when going through Caesars VOP dts patches, 
but was somewhat unsucessful in my small attempt at the time - see [0].


Heiko

[0] https://lkml.org/lkml/2016/11/14/519

  parent reply	other threads:[~2016-11-29  9:22 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-24  2:13 iommu/rockchip: Fix bugs and enable on ARM64 Shunqian Zheng
2016-06-24  2:13 ` Shunqian Zheng
2016-06-24  2:13 ` Shunqian Zheng
     [not found] ` <1466734413-7453-1-git-send-email-zhengsq-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-06-24  2:13   ` [PATCH v5 1/8] iommu/rockchip: Fix devm_{request,free}_irq parameter Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13   ` [PATCH v5 2/8] iommu/rockchip: Add map_sg callback for rk_iommu_ops Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13   ` [PATCH v5 3/8] iommu/rockchip: Fix allocation of bases array in driver probe Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13   ` [PATCH v5 4/8] iommu/rockchip: Use DMA API to manage coherency Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13   ` [PATCH v5 5/8] iommu/rockchip: Prepare to support generic DMA mapping Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13   ` [PATCH v5 6/8] drm/rockchip: Do not use DMA mapping API if attached to IOMMU domain Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-07-08  0:54     ` Mark yao
2016-07-08  0:54       ` Mark yao
2016-07-08  0:54       ` Mark yao
2016-06-24  2:13   ` [PATCH v5 7/8] drm/rockchip: Use common IOMMU API to attach devices Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-07-08  0:54     ` Mark yao
2016-07-08  0:54       ` Mark yao
2016-07-08  0:54       ` Mark yao
2016-06-24  2:13   ` [PATCH v5 8/8] iommu/rockchip: Enable Rockchip IOMMU on ARM64 Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
2016-06-24  2:13     ` Shunqian Zheng
     [not found]     ` <1466734413-7453-9-git-send-email-zhengsq-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-11-29  0:42       ` Brian Norris
2016-11-29  0:42         ` Brian Norris
2016-11-29  0:42         ` Brian Norris
     [not found]         ` <20161129004225.GA109697-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2016-11-29  9:22           ` Heiko Stübner [this message]
2016-11-29  9:22             ` Heiko Stübner
2016-11-29  9:22             ` Heiko Stübner
2016-06-27 12:57 ` iommu/rockchip: Fix bugs and enable " Joerg Roedel
2016-06-27 12:57   ` Joerg Roedel
2016-06-27 12:57   ` Joerg Roedel
2016-07-08  1:01   ` Mark yao
2016-07-08  1:01     ` Mark yao
     [not found]     ` <577EFB86.1060502-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-07-15 15:32       ` Matthias Brugger
2016-07-15 15:32         ` Matthias Brugger
2016-07-15 15:32         ` Matthias Brugger
2016-07-15 16:16         ` Joerg Roedel
2016-07-15 16:16           ` Joerg Roedel
2017-03-08  5:50           ` Caesar Wang
2017-03-08  5:50             ` Caesar Wang
2017-03-08  5:50             ` Caesar Wang

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