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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Yong Wu <yong.wu@mediatek.com>
Cc: Joerg Roedel <joro@8bytes.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Will Deacon <will@kernel.org>, Evan Green <evgreen@chromium.org>,
	Tomasz Figa <tfiga@google.com>,
	linux-mediatek@lists.infradead.org, srv_heupstream@mediatek.com,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	iommu@lists.linux-foundation.org, youlin.pei@mediatek.com,
	Nicolas Boichat <drinkcat@chromium.org>,
	anan.sun@mediatek.com, chao.hao@mediatek.com,
	ming-fan.chen@mediatek.com,
	Greg Kroah-Hartman <gregkh@google.com>,
	kernel-team@android.com
Subject: Re: [PATCH v3 18/24] iommu/mediatek: Support master use iova over 32bit
Date: Tue, 6 Oct 2020 09:18:38 +0200	[thread overview]
Message-ID: <20201006071838.GA5703@kozik-lap> (raw)
In-Reply-To: <20200930070647.10188-19-yong.wu@mediatek.com>

On Wed, Sep 30, 2020 at 03:06:41PM +0800, Yong Wu wrote:
> After extending v7s, our pagetable already support iova reach
> 16GB(34bit). the master got the iova via dma_alloc_attrs may reach
> 34bits, but its HW register still is 32bit. then how to set the
> bit32/bit33 iova? this depend on a SMI larb setting(bank_sel).
> 
> we separate whole 16GB iova to four banks:
> bank: 0: 0~4G; 1: 4~8G; 2: 8-12G; 3: 12-16G;
> The bank number is (iova >> 32).
> 
> We will preassign which bank the larbs belong to. currently we don't
> have a interface for master to adjust its bank number.
> 
> Each a bank is a iova_region which is a independent iommu-domain.
> the iova range for each iommu-domain can't cross 4G.
> 
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> ---
>  drivers/iommu/mtk_iommu.c  | 12 +++++++++---
>  drivers/memory/mtk-smi.c   |  7 +++++++
>  include/soc/mediatek/smi.h |  1 +
>  3 files changed, 17 insertions(+), 3 deletions(-)


For the memory part:
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

WARNING: multiple messages have this Message-ID (diff)
From: Krzysztof Kozlowski <krzk@kernel.org>
To: Yong Wu <yong.wu@mediatek.com>
Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org,
	kernel-team@android.com, Nicolas Boichat <drinkcat@chromium.org>,
	srv_heupstream@mediatek.com, chao.hao@mediatek.com,
	Robin Murphy <robin.murphy@arm.com>,
	Greg Kroah-Hartman <gregkh@google.com>,
	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,
	Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 18/24] iommu/mediatek: Support master use iova over 32bit
Date: Tue, 6 Oct 2020 09:18:38 +0200	[thread overview]
Message-ID: <20201006071838.GA5703@kozik-lap> (raw)
In-Reply-To: <20200930070647.10188-19-yong.wu@mediatek.com>

On Wed, Sep 30, 2020 at 03:06:41PM +0800, Yong Wu wrote:
> After extending v7s, our pagetable already support iova reach
> 16GB(34bit). the master got the iova via dma_alloc_attrs may reach
> 34bits, but its HW register still is 32bit. then how to set the
> bit32/bit33 iova? this depend on a SMI larb setting(bank_sel).
> 
> we separate whole 16GB iova to four banks:
> bank: 0: 0~4G; 1: 4~8G; 2: 8-12G; 3: 12-16G;
> The bank number is (iova >> 32).
> 
> We will preassign which bank the larbs belong to. currently we don't
> have a interface for master to adjust its bank number.
> 
> Each a bank is a iova_region which is a independent iommu-domain.
> the iova range for each iommu-domain can't cross 4G.
> 
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> ---
>  drivers/iommu/mtk_iommu.c  | 12 +++++++++---
>  drivers/memory/mtk-smi.c   |  7 +++++++
>  include/soc/mediatek/smi.h |  1 +
>  3 files changed, 17 insertions(+), 3 deletions(-)


For the memory part:
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

WARNING: multiple messages have this Message-ID (diff)
From: Krzysztof Kozlowski <krzk@kernel.org>
To: Yong Wu <yong.wu@mediatek.com>
Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org,
	kernel-team@android.com, Nicolas Boichat <drinkcat@chromium.org>,
	srv_heupstream@mediatek.com, chao.hao@mediatek.com,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>,
	Greg Kroah-Hartman <gregkh@google.com>,
	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,
	Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 18/24] iommu/mediatek: Support master use iova over 32bit
Date: Tue, 6 Oct 2020 09:18:38 +0200	[thread overview]
Message-ID: <20201006071838.GA5703@kozik-lap> (raw)
In-Reply-To: <20200930070647.10188-19-yong.wu@mediatek.com>

On Wed, Sep 30, 2020 at 03:06:41PM +0800, Yong Wu wrote:
> After extending v7s, our pagetable already support iova reach
> 16GB(34bit). the master got the iova via dma_alloc_attrs may reach
> 34bits, but its HW register still is 32bit. then how to set the
> bit32/bit33 iova? this depend on a SMI larb setting(bank_sel).
> 
> we separate whole 16GB iova to four banks:
> bank: 0: 0~4G; 1: 4~8G; 2: 8-12G; 3: 12-16G;
> The bank number is (iova >> 32).
> 
> We will preassign which bank the larbs belong to. currently we don't
> have a interface for master to adjust its bank number.
> 
> Each a bank is a iova_region which is a independent iommu-domain.
> the iova range for each iommu-domain can't cross 4G.
> 
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> ---
>  drivers/iommu/mtk_iommu.c  | 12 +++++++++---
>  drivers/memory/mtk-smi.c   |  7 +++++++
>  include/soc/mediatek/smi.h |  1 +
>  3 files changed, 17 insertions(+), 3 deletions(-)


For the memory part:
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

_______________________________________________
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: Krzysztof Kozlowski <krzk@kernel.org>
To: Yong Wu <yong.wu@mediatek.com>
Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org,
	kernel-team@android.com, Nicolas Boichat <drinkcat@chromium.org>,
	srv_heupstream@mediatek.com, chao.hao@mediatek.com,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>,
	Greg Kroah-Hartman <gregkh@google.com>,
	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,
	Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 18/24] iommu/mediatek: Support master use iova over 32bit
Date: Tue, 6 Oct 2020 09:18:38 +0200	[thread overview]
Message-ID: <20201006071838.GA5703@kozik-lap> (raw)
In-Reply-To: <20200930070647.10188-19-yong.wu@mediatek.com>

On Wed, Sep 30, 2020 at 03:06:41PM +0800, Yong Wu wrote:
> After extending v7s, our pagetable already support iova reach
> 16GB(34bit). the master got the iova via dma_alloc_attrs may reach
> 34bits, but its HW register still is 32bit. then how to set the
> bit32/bit33 iova? this depend on a SMI larb setting(bank_sel).
> 
> we separate whole 16GB iova to four banks:
> bank: 0: 0~4G; 1: 4~8G; 2: 8-12G; 3: 12-16G;
> The bank number is (iova >> 32).
> 
> We will preassign which bank the larbs belong to. currently we don't
> have a interface for master to adjust its bank number.
> 
> Each a bank is a iova_region which is a independent iommu-domain.
> the iova range for each iommu-domain can't cross 4G.
> 
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> ---
>  drivers/iommu/mtk_iommu.c  | 12 +++++++++---
>  drivers/memory/mtk-smi.c   |  7 +++++++
>  include/soc/mediatek/smi.h |  1 +
>  3 files changed, 17 insertions(+), 3 deletions(-)


For the memory part:
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-10-06  7:18 UTC|newest]

Thread overview: 213+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-30  7:06 [PATCH v3 00/24] MT8192 IOMMU support Yong Wu
2020-09-30  7:06 ` Yong Wu
2020-09-30  7:06 ` Yong Wu
2020-09-30  7:06 ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 01/24] dt-bindings: iommu: mediatek: Convert IOMMU to DT schema Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-02 10:58   ` Krzysztof Kozlowski
2020-10-02 10:58     ` Krzysztof Kozlowski
2020-10-02 10:58     ` Krzysztof Kozlowski
2020-10-02 10:58     ` Krzysztof Kozlowski
2020-10-30  9:47     ` Yong Wu
2020-10-02 11:07   ` Krzysztof Kozlowski
2020-10-02 11:07     ` Krzysztof Kozlowski
2020-10-02 11:07     ` Krzysztof Kozlowski
2020-10-02 11:07     ` Krzysztof Kozlowski
2020-10-06  4:26     ` Yong Wu
2020-10-06  4:26       ` Yong Wu
2020-10-06  4:26       ` Yong Wu
2020-10-06  4:26       ` Yong Wu
2020-10-12 17:08       ` Krzysztof Kozlowski
2020-10-12 17:08         ` Krzysztof Kozlowski
2020-10-12 17:08         ` Krzysztof Kozlowski
2020-10-12 17:08         ` Krzysztof Kozlowski
2020-10-13  7:53         ` Yong Wu
2020-10-13  7:53           ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 02/24] dt-bindings: memory: mediatek: Convert SMI " Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-02 11:04   ` Krzysztof Kozlowski
2020-10-02 11:04     ` Krzysztof Kozlowski
2020-10-02 11:04     ` Krzysztof Kozlowski
2020-10-02 11:04     ` Krzysztof Kozlowski
2020-10-02 11:08   ` Krzysztof Kozlowski
2020-10-02 11:08     ` Krzysztof Kozlowski
2020-10-02 11:08     ` Krzysztof Kozlowski
2020-10-02 11:08     ` Krzysztof Kozlowski
2020-10-06  4:27     ` Yong Wu
2020-10-06  4:27       ` Yong Wu
2020-10-06  4:27       ` Yong Wu
2020-10-06  4:27       ` Yong Wu
2020-10-06  7:15       ` Krzysztof Kozlowski
2020-10-06  7:15         ` Krzysztof Kozlowski
2020-10-06  7:15         ` Krzysztof Kozlowski
2020-10-06  7:15         ` Krzysztof Kozlowski
2020-10-10  6:18         ` Yong Wu
2020-10-10  6:18           ` Yong Wu
2020-10-10  6:18           ` Yong Wu
2020-10-10  6:18           ` Yong Wu
2020-10-12  7:18           ` Krzysztof Kozlowski
2020-10-12  7:18             ` Krzysztof Kozlowski
2020-10-12  7:18             ` Krzysztof Kozlowski
2020-10-12  7:18             ` Krzysztof Kozlowski
2020-10-12 12:01             ` Yong Wu
2020-10-12 12:01               ` Yong Wu
2020-10-12 12:01               ` Yong Wu
2020-10-12 12:01               ` Yong Wu
2020-10-12 13:26               ` Krzysztof Kozlowski
2020-10-12 13:26                 ` Krzysztof Kozlowski
2020-10-12 13:26                 ` Krzysztof Kozlowski
2020-10-12 13:26                 ` Krzysztof Kozlowski
2020-10-13  7:53                 ` Yong Wu
2020-10-13  7:53                   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 03/24] dt-bindings: memory: mediatek: Add a common larb-port header file Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 04/24] dt-bindings: memory: mediatek: Extend LARB_NR_MAX to 32 Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 05/24] dt-bindings: memory: mediatek: Add domain definition Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 06/24] dt-bindings: mediatek: Add binding for mt8192 IOMMU Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-02 11:10   ` Krzysztof Kozlowski
2020-10-02 11:10     ` Krzysztof Kozlowski
2020-10-02 11:10     ` Krzysztof Kozlowski
2020-10-02 11:10     ` Krzysztof Kozlowski
2020-10-06  4:26     ` Yong Wu
2020-10-06  4:26       ` Yong Wu
2020-10-06  4:26       ` Yong Wu
2020-10-06  4:26       ` Yong Wu
2020-10-06  7:19       ` Krzysztof Kozlowski
2020-10-06  7:19         ` Krzysztof Kozlowski
2020-10-06  7:19         ` Krzysztof Kozlowski
2020-10-06  7:19         ` Krzysztof Kozlowski
2020-09-30  7:06 ` [PATCH v3 07/24] iommu/mediatek: Use the common mtk-smi-larb-port.h Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 08/24] iommu/io-pgtable-arm-v7s: Use ias to check the valid iova in unmap Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-23 11:17   ` Will Deacon
2020-10-23 11:17     ` Will Deacon
2020-10-23 11:17     ` Will Deacon
2020-10-23 11:17     ` Will Deacon
2020-10-26  7:49     ` Yong Wu
2020-10-26  7:49       ` Yong Wu
2020-10-26  7:49       ` Yong Wu
2020-10-26  7:49       ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 09/24] iommu/io-pgtable-arm-v7s: Extend PA34 for MediaTek Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-23 11:22   ` Will Deacon
2020-10-23 11:22     ` Will Deacon
2020-10-23 11:22     ` Will Deacon
2020-10-23 11:22     ` Will Deacon
2020-09-30  7:06 ` [PATCH v3 10/24] iommu/io-pgtable-arm-v7s: Add cfg as a param in some macros Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-23 11:23   ` Will Deacon
2020-10-23 11:23     ` Will Deacon
2020-10-23 11:23     ` Will Deacon
2020-10-23 11:23     ` Will Deacon
2020-09-30  7:06 ` [PATCH v3 11/24] iommu/io-pgtable-arm-v7s: Quad lvl1 pgtable for MediaTek Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-23 11:21   ` Will Deacon
2020-10-23 11:21     ` Will Deacon
2020-10-23 11:21     ` Will Deacon
2020-10-23 11:21     ` Will Deacon
2020-10-26  7:45     ` Yong Wu
2020-10-26  7:45       ` Yong Wu
2020-10-26  7:45       ` Yong Wu
2020-10-26  7:45       ` Yong Wu
2020-10-23 14:10   ` Robin Murphy
2020-10-23 14:10     ` Robin Murphy
2020-10-23 14:10     ` Robin Murphy
2020-10-23 14:10     ` Robin Murphy
2020-10-26  7:41     ` Yong Wu
2020-10-26  7:41       ` Yong Wu
2020-10-26  7:41       ` Yong Wu
2020-10-26  7:41       ` Yong Wu
2020-10-26 11:35       ` Robin Murphy
2020-10-26 11:35         ` Robin Murphy
2020-10-26 11:35         ` Robin Murphy
2020-10-26 11:35         ` Robin Murphy
2020-09-30  7:06 ` [PATCH v3 12/24] iommu/mediatek: Move hw_init into attach_device Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 13/24] iommu/mediatek: Add device link for smi-common and m4u Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 14/24] iommu/mediatek: Add pm runtime callback Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 15/24] iommu/mediatek: Add power-domain operation Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 16/24] iommu/mediatek: Add iova reserved function Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 17/24] iommu/mediatek: Add single domain Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 18/24] iommu/mediatek: Support master use iova over 32bit Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-06  7:18   ` Krzysztof Kozlowski [this message]
2020-10-06  7:18     ` Krzysztof Kozlowski
2020-10-06  7:18     ` Krzysztof Kozlowski
2020-10-06  7:18     ` Krzysztof Kozlowski
2020-09-30  7:06 ` [PATCH v3 19/24] iommu/mediatek: Support up to 34bit iova in tlb flush Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 20/24] iommu/mediatek: Support report iova 34bit translation fault in ISR Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 21/24] iommu/mediatek: Add support for multi domain Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 22/24] iommu/mediatek: Adjust the structure Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 23/24] iommu/mediatek: Add mt8192 support Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06 ` [PATCH v3 24/24] memory: mtk-smi: " Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-09-30  7:06   ` Yong Wu
2020-10-02 11:15   ` Krzysztof Kozlowski
2020-10-02 11:15     ` Krzysztof Kozlowski
2020-10-02 11:15     ` Krzysztof Kozlowski
2020-10-02 11:15     ` Krzysztof Kozlowski
2020-10-26 20:08 ` [PATCH v3 00/24] MT8192 IOMMU support Krzysztof Kozlowski
2020-10-26 20:08   ` Krzysztof Kozlowski
2020-10-26 20:08   ` Krzysztof Kozlowski
2020-10-26 20:08   ` Krzysztof Kozlowski

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