From: Yong Wu <yong.wu@mediatek.com>
To: Robin Murphy <robin.murphy@arm.com>
Cc: Will Deacon <will@kernel.org>, <youlin.pei@mediatek.com>,
<devicetree@vger.kernel.org>,
Nicolas Boichat <drinkcat@chromium.org>, <cui.zhang@mediatek.com>,
<srv_heupstream@mediatek.com>, <chao.hao@mediatek.com>,
Joerg Roedel <joro@8bytes.org>, <linux-kernel@vger.kernel.org>,
Evan Green <evgreen@chromium.org>, Tomasz Figa <tfiga@google.com>,
<iommu@lists.linux-foundation.org>,
Rob Herring <robh+dt@kernel.org>,
<linux-mediatek@lists.infradead.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
<ming-fan.chen@mediatek.com>, <anan.sun@mediatek.com>,
Matthias Kaehlcke <mka@chromium.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v10 09/23] iommu/io-pgtable-arm-v7s: Extend to support PA[33:32] for MediaTek
Date: Thu, 22 Aug 2019 16:59:35 +0800 [thread overview]
Message-ID: <1566464375.11621.10.camel@mhfsdcap03> (raw)
In-Reply-To: <22a79977-5074-7af1-97b8-8a3e549b23c1@arm.com>
On Wed, 2019-08-21 at 16:34 +0100, Robin Murphy wrote:
> On 21/08/2019 16:24, Will Deacon wrote:
> > On Wed, Aug 21, 2019 at 09:53:12PM +0800, Yong Wu wrote:
> >> MediaTek extend the arm v7s descriptor to support up to 34 bits PA where
> >> the bit32 and bit33 are encoded in the bit9 and bit4 of the PTE
> >> respectively. Meanwhile the iova still is 32bits.
> >>
> >> Regarding whether the pagetable address could be over 4GB, the mt8183
> >> support it while the previous mt8173 don't, thus keep it as is.
> >>
> >> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> >> ---
> >> drivers/iommu/io-pgtable-arm-v7s.c | 32 +++++++++++++++++++++++++-------
> >> include/linux/io-pgtable.h | 7 +++----
> >> 2 files changed, 28 insertions(+), 11 deletions(-)
> >
> > [...]
> >
> >> @@ -731,7 +747,9 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
> >> {
> >> struct arm_v7s_io_pgtable *data;
> >>
> >> - if (cfg->ias > ARM_V7S_ADDR_BITS || cfg->oas > ARM_V7S_ADDR_BITS)
> >> + if (cfg->ias > ARM_V7S_ADDR_BITS ||
> >> + (cfg->oas > ARM_V7S_ADDR_BITS &&
> >> + !(cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_EXT)))
> >
> > Please can you instead change arm_v7s_alloc_pgtable() so that it allows an
> > ias of up to 34 when the IO_PGTABLE_QUIRK_ARM_MTK_EXT is set?
>
> You mean oas, right? I believe the hardware *does* actually support a
> 32-bit ias as well, but we shouldn't pretend to support that while
> __arm_v7s_alloc_table() still only knows how to allocate normal-sized
> tables.
Yes. The HW double the lvl1 pgtable, thus it supports 33bit iova
actually. We may extend ias in the future.
>
> Robin.
>
> >
> > With that change:
> >
> > Acked-by: Will Deacon <will@kernel.org>
> >
> > Will
> >
>
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: Yong Wu <yong.wu@mediatek.com>
To: Robin Murphy <robin.murphy@arm.com>
Cc: Will Deacon <will@kernel.org>,
youlin.pei@mediatek.com, devicetree@vger.kernel.org,
Nicolas Boichat <drinkcat@chromium.org>,
cui.zhang@mediatek.com, srv_heupstream@mediatek.com,
chao.hao@mediatek.com, Joerg Roedel <joro@8bytes.org>,
linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>,
Tomasz Figa <tfiga@google.com>,
iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
ming-fan.chen@mediatek.com, anan.sun@mediatek.com,
Matthias Kaehlcke <mka@chromium.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v10 09/23] iommu/io-pgtable-arm-v7s: Extend to support PA[33:32] for MediaTek
Date: Thu, 22 Aug 2019 16:59:35 +0800 [thread overview]
Message-ID: <1566464375.11621.10.camel@mhfsdcap03> (raw)
In-Reply-To: <22a79977-5074-7af1-97b8-8a3e549b23c1@arm.com>
On Wed, 2019-08-21 at 16:34 +0100, Robin Murphy wrote:
> On 21/08/2019 16:24, Will Deacon wrote:
> > On Wed, Aug 21, 2019 at 09:53:12PM +0800, Yong Wu wrote:
> >> MediaTek extend the arm v7s descriptor to support up to 34 bits PA where
> >> the bit32 and bit33 are encoded in the bit9 and bit4 of the PTE
> >> respectively. Meanwhile the iova still is 32bits.
> >>
> >> Regarding whether the pagetable address could be over 4GB, the mt8183
> >> support it while the previous mt8173 don't, thus keep it as is.
> >>
> >> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> >> ---
> >> drivers/iommu/io-pgtable-arm-v7s.c | 32 +++++++++++++++++++++++++-------
> >> include/linux/io-pgtable.h | 7 +++----
> >> 2 files changed, 28 insertions(+), 11 deletions(-)
> >
> > [...]
> >
> >> @@ -731,7 +747,9 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
> >> {
> >> struct arm_v7s_io_pgtable *data;
> >>
> >> - if (cfg->ias > ARM_V7S_ADDR_BITS || cfg->oas > ARM_V7S_ADDR_BITS)
> >> + if (cfg->ias > ARM_V7S_ADDR_BITS ||
> >> + (cfg->oas > ARM_V7S_ADDR_BITS &&
> >> + !(cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_EXT)))
> >
> > Please can you instead change arm_v7s_alloc_pgtable() so that it allows an
> > ias of up to 34 when the IO_PGTABLE_QUIRK_ARM_MTK_EXT is set?
>
> You mean oas, right? I believe the hardware *does* actually support a
> 32-bit ias as well, but we shouldn't pretend to support that while
> __arm_v7s_alloc_table() still only knows how to allocate normal-sized
> tables.
Yes. The HW double the lvl1 pgtable, thus it supports 33bit iova
actually. We may extend ias in the future.
>
> Robin.
>
> >
> > With that change:
> >
> > Acked-by: Will Deacon <will@kernel.org>
> >
> > Will
> >
>
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek
WARNING: multiple messages have this Message-ID (diff)
From: Yong Wu <yong.wu@mediatek.com>
To: Robin Murphy <robin.murphy@arm.com>
Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org,
Nicolas Boichat <drinkcat@chromium.org>,
cui.zhang@mediatek.com, srv_heupstream@mediatek.com,
Tomasz Figa <tfiga@google.com>,
linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>,
chao.hao@mediatek.com, iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
ming-fan.chen@mediatek.com, anan.sun@mediatek.com,
Will Deacon <will@kernel.org>,
Matthias Kaehlcke <mka@chromium.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v10 09/23] iommu/io-pgtable-arm-v7s: Extend to support PA[33:32] for MediaTek
Date: Thu, 22 Aug 2019 16:59:35 +0800 [thread overview]
Message-ID: <1566464375.11621.10.camel@mhfsdcap03> (raw)
In-Reply-To: <22a79977-5074-7af1-97b8-8a3e549b23c1@arm.com>
On Wed, 2019-08-21 at 16:34 +0100, Robin Murphy wrote:
> On 21/08/2019 16:24, Will Deacon wrote:
> > On Wed, Aug 21, 2019 at 09:53:12PM +0800, Yong Wu wrote:
> >> MediaTek extend the arm v7s descriptor to support up to 34 bits PA where
> >> the bit32 and bit33 are encoded in the bit9 and bit4 of the PTE
> >> respectively. Meanwhile the iova still is 32bits.
> >>
> >> Regarding whether the pagetable address could be over 4GB, the mt8183
> >> support it while the previous mt8173 don't, thus keep it as is.
> >>
> >> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> >> ---
> >> drivers/iommu/io-pgtable-arm-v7s.c | 32 +++++++++++++++++++++++++-------
> >> include/linux/io-pgtable.h | 7 +++----
> >> 2 files changed, 28 insertions(+), 11 deletions(-)
> >
> > [...]
> >
> >> @@ -731,7 +747,9 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
> >> {
> >> struct arm_v7s_io_pgtable *data;
> >>
> >> - if (cfg->ias > ARM_V7S_ADDR_BITS || cfg->oas > ARM_V7S_ADDR_BITS)
> >> + if (cfg->ias > ARM_V7S_ADDR_BITS ||
> >> + (cfg->oas > ARM_V7S_ADDR_BITS &&
> >> + !(cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_EXT)))
> >
> > Please can you instead change arm_v7s_alloc_pgtable() so that it allows an
> > ias of up to 34 when the IO_PGTABLE_QUIRK_ARM_MTK_EXT is set?
>
> You mean oas, right? I believe the hardware *does* actually support a
> 32-bit ias as well, but we shouldn't pretend to support that while
> __arm_v7s_alloc_table() still only knows how to allocate normal-sized
> tables.
Yes. The HW double the lvl1 pgtable, thus it supports 33bit iova
actually. We may extend ias in the future.
>
> Robin.
>
> >
> > With that change:
> >
> > Acked-by: Will Deacon <will@kernel.org>
> >
> > Will
> >
>
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: Yong Wu <yong.wu@mediatek.com>
To: Robin Murphy <robin.murphy@arm.com>
Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org,
Nicolas Boichat <drinkcat@chromium.org>,
cui.zhang@mediatek.com, srv_heupstream@mediatek.com,
Tomasz Figa <tfiga@google.com>, Joerg Roedel <joro@8bytes.org>,
linux-kernel@vger.kernel.org, Evan Green <evgreen@chromium.org>,
chao.hao@mediatek.com, iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
ming-fan.chen@mediatek.com, anan.sun@mediatek.com,
Will Deacon <will@kernel.org>,
Matthias Kaehlcke <mka@chromium.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v10 09/23] iommu/io-pgtable-arm-v7s: Extend to support PA[33:32] for MediaTek
Date: Thu, 22 Aug 2019 16:59:35 +0800 [thread overview]
Message-ID: <1566464375.11621.10.camel@mhfsdcap03> (raw)
In-Reply-To: <22a79977-5074-7af1-97b8-8a3e549b23c1@arm.com>
On Wed, 2019-08-21 at 16:34 +0100, Robin Murphy wrote:
> On 21/08/2019 16:24, Will Deacon wrote:
> > On Wed, Aug 21, 2019 at 09:53:12PM +0800, Yong Wu wrote:
> >> MediaTek extend the arm v7s descriptor to support up to 34 bits PA where
> >> the bit32 and bit33 are encoded in the bit9 and bit4 of the PTE
> >> respectively. Meanwhile the iova still is 32bits.
> >>
> >> Regarding whether the pagetable address could be over 4GB, the mt8183
> >> support it while the previous mt8173 don't, thus keep it as is.
> >>
> >> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> >> ---
> >> drivers/iommu/io-pgtable-arm-v7s.c | 32 +++++++++++++++++++++++++-------
> >> include/linux/io-pgtable.h | 7 +++----
> >> 2 files changed, 28 insertions(+), 11 deletions(-)
> >
> > [...]
> >
> >> @@ -731,7 +747,9 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
> >> {
> >> struct arm_v7s_io_pgtable *data;
> >>
> >> - if (cfg->ias > ARM_V7S_ADDR_BITS || cfg->oas > ARM_V7S_ADDR_BITS)
> >> + if (cfg->ias > ARM_V7S_ADDR_BITS ||
> >> + (cfg->oas > ARM_V7S_ADDR_BITS &&
> >> + !(cfg->quirks & IO_PGTABLE_QUIRK_ARM_MTK_EXT)))
> >
> > Please can you instead change arm_v7s_alloc_pgtable() so that it allows an
> > ias of up to 34 when the IO_PGTABLE_QUIRK_ARM_MTK_EXT is set?
>
> You mean oas, right? I believe the hardware *does* actually support a
> 32-bit ias as well, but we shouldn't pretend to support that while
> __arm_v7s_alloc_table() still only knows how to allocate normal-sized
> tables.
Yes. The HW double the lvl1 pgtable, thus it supports 33bit iova
actually. We may extend ias in the future.
>
> Robin.
>
> >
> > With that change:
> >
> > Acked-by: Will Deacon <will@kernel.org>
> >
> > Will
> >
>
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-08-22 8:59 UTC|newest]
Thread overview: 145+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-21 13:53 [PATCH v10 00/23] MT8183 IOMMU SUPPORT Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 01/23] dt-bindings: mediatek: Add binding for mt8183 IOMMU and SMI Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 02/23] iommu/mediatek: Use a struct as the platform data Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 03/23] memory: mtk-smi: Use a general config_port interface Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 04/23] memory: mtk-smi: Use a struct for the platform data for smi-common Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 05/23] iommu/mediatek: Fix iova_to_phys PA start for 4GB mode Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 06/23] iommu/io-pgtable-arm-v7s: Add paddr_to_iopte and iopte_to_paddr helpers Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 07/23] iommu/io-pgtable-arm-v7s: Use ias/oas to check the valid iova/pa Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 15:25 ` Will Deacon
2019-08-21 15:25 ` Will Deacon
2019-08-21 15:25 ` Will Deacon
2019-08-21 13:53 ` [PATCH v10 08/23] iommu/io-pgtable-arm-v7s: Rename the quirk from MTK_4GB to MTK_EXT Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 15:25 ` Will Deacon
2019-08-21 15:25 ` Will Deacon
2019-08-21 15:25 ` Will Deacon
2019-08-21 13:53 ` [PATCH v10 09/23] iommu/io-pgtable-arm-v7s: Extend to support PA[33:32] for MediaTek Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 15:24 ` Will Deacon
2019-08-21 15:24 ` Will Deacon
2019-08-21 15:24 ` Will Deacon
2019-08-21 15:34 ` Robin Murphy
2019-08-21 15:34 ` Robin Murphy
2019-08-21 15:34 ` Robin Murphy
2019-08-21 16:35 ` Will Deacon
2019-08-21 16:35 ` Will Deacon
2019-08-21 16:35 ` Will Deacon
2019-08-22 8:59 ` Yong Wu [this message]
2019-08-22 8:59 ` Yong Wu
2019-08-22 8:59 ` Yong Wu
2019-08-22 8:59 ` Yong Wu
2019-08-22 8:56 ` Yong Wu
2019-08-22 8:56 ` Yong Wu
2019-08-22 8:56 ` Yong Wu
2019-08-22 8:56 ` Yong Wu
2019-08-22 10:08 ` Will Deacon
2019-08-22 10:08 ` Will Deacon
2019-08-22 10:08 ` Will Deacon
2019-08-22 10:08 ` Robin Murphy
2019-08-22 10:08 ` Robin Murphy
2019-08-22 10:08 ` Robin Murphy
2019-08-22 10:17 ` Will Deacon
2019-08-22 10:17 ` Will Deacon
2019-08-22 10:17 ` Will Deacon
2019-08-22 10:57 ` Robin Murphy
2019-08-22 10:57 ` Robin Murphy
2019-08-22 10:57 ` Robin Murphy
2019-08-22 11:28 ` Will Deacon
2019-08-22 11:28 ` Will Deacon
2019-08-22 11:28 ` Will Deacon
2019-08-22 12:05 ` Yong Wu
2019-08-22 12:05 ` Yong Wu
2019-08-22 12:05 ` Yong Wu
2019-08-22 12:05 ` Yong Wu
2019-08-22 17:14 ` Will Deacon
2019-08-22 17:14 ` Will Deacon
2019-08-22 17:14 ` Will Deacon
2019-08-22 17:14 ` Will Deacon
2019-08-21 13:53 ` [PATCH v10 10/23] iommu/mediatek: Adjust the PA for the 4GB Mode Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 11/23] iommu/mediatek: Add bclk can be supported optionally Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 12/23] iommu/mediatek: Add larb-id remapped support Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 13/23] iommu/mediatek: Refine protect memory definition Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 14/23] iommu/mediatek: Move reset_axi into plat_data Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 15/23] iommu/mediatek: Move vld_pa_rng " Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 16/23] memory: mtk-smi: Add gals support Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 17/23] iommu/mediatek: Add mt8183 IOMMU support Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 18/23] iommu/mediatek: Add mmu1 support Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 19/23] memory: mtk-smi: Invoke pm runtime_callback to enable clocks Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 20/23] memory: mtk-smi: Add bus_sel for mt8183 Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 21/23] iommu/mediatek: Fix VLD_PA_RNG register backup when suspend Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 22/23] memory: mtk-smi: Get rid of need_larbid Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` [PATCH v10 23/23] iommu/mediatek: Clean up struct mtk_smi_iommu Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-21 13:53 ` Yong Wu
2019-08-22 14:07 ` Matthias Brugger
2019-08-22 14:07 ` Matthias Brugger
2019-08-22 14:07 ` Matthias Brugger
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all data and code used by this external index.