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From: "Heiko Stübner" <heiko@sntech.de>
To: joro@8bytes.org, will@kernel.org, robh+dt@kernel.org,
	xxm@rock-chips.com, robin.murphy@arm.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	kernel@collabora.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Subject: Re: [PATCH v5 3/4] iommu: rockchip: Add internal ops to handle variants
Date: Fri, 21 May 2021 11:16:30 +0200	[thread overview]
Message-ID: <4753042.QJadu78ljV@diego> (raw)
In-Reply-To: <20210521083637.3221304-4-benjamin.gaignard@collabora.com>

Am Freitag, 21. Mai 2021, 10:36:36 CEST schrieb Benjamin Gaignard:
> Add internal ops to be able to handle incoming variant v2.
> The goal is to keep the overall structure of the framework but
> to allow to add the evolution of this hardware block.
> 
> The ops are global for a SoC because iommu domains are not
> attached to a specific devices if they are for a virtuel device like
> drm. Use a global variable shouldn't be since SoC usually doesn't
> embedded different versions of the iommu hardware block.
> If that happen one day a WARN_ON will be displayed at probe time.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>

Reviewed-by: Heiko Stuebner <heiko@sntech.de>




WARNING: multiple messages have this Message-ID
From: "Heiko Stübner" <heiko@sntech.de>
To: joro@8bytes.org, will@kernel.org, robh+dt@kernel.org,
	xxm@rock-chips.com, robin.murphy@arm.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	kernel@collabora.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Subject: Re: [PATCH v5 3/4] iommu: rockchip: Add internal ops to handle variants
Date: Fri, 21 May 2021 11:16:30 +0200	[thread overview]
Message-ID: <4753042.QJadu78ljV@diego> (raw)
In-Reply-To: <20210521083637.3221304-4-benjamin.gaignard@collabora.com>

Am Freitag, 21. Mai 2021, 10:36:36 CEST schrieb Benjamin Gaignard:
> Add internal ops to be able to handle incoming variant v2.
> The goal is to keep the overall structure of the framework but
> to allow to add the evolution of this hardware block.
> 
> The ops are global for a SoC because iommu domains are not
> attached to a specific devices if they are for a virtuel device like
> drm. Use a global variable shouldn't be since SoC usually doesn't
> embedded different versions of the iommu hardware block.
> If that happen one day a WARN_ON will be displayed at probe time.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>

Reviewed-by: Heiko Stuebner <heiko@sntech.de>




_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID
From: "Heiko Stübner" <heiko@sntech.de>
To: joro@8bytes.org, will@kernel.org, robh+dt@kernel.org,
	xxm@rock-chips.com, robin.murphy@arm.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Cc: devicetree@vger.kernel.org,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>,
	linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
	iommu@lists.linux-foundation.org, kernel@collabora.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v5 3/4] iommu: rockchip: Add internal ops to handle variants
Date: Fri, 21 May 2021 11:16:30 +0200	[thread overview]
Message-ID: <4753042.QJadu78ljV@diego> (raw)
In-Reply-To: <20210521083637.3221304-4-benjamin.gaignard@collabora.com>

Am Freitag, 21. Mai 2021, 10:36:36 CEST schrieb Benjamin Gaignard:
> Add internal ops to be able to handle incoming variant v2.
> The goal is to keep the overall structure of the framework but
> to allow to add the evolution of this hardware block.
> 
> The ops are global for a SoC because iommu domains are not
> attached to a specific devices if they are for a virtuel device like
> drm. Use a global variable shouldn't be since SoC usually doesn't
> embedded different versions of the iommu hardware block.
> If that happen one day a WARN_ON will be displayed at probe time.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>

Reviewed-by: Heiko Stuebner <heiko@sntech.de>



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

WARNING: multiple messages have this Message-ID
From: "Heiko Stübner" <heiko@sntech.de>
To: joro@8bytes.org, will@kernel.org, robh+dt@kernel.org,
	xxm@rock-chips.com, robin.murphy@arm.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Cc: iommu@lists.linux-foundation.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	kernel@collabora.com,
	Benjamin Gaignard <benjamin.gaignard@collabora.com>
Subject: Re: [PATCH v5 3/4] iommu: rockchip: Add internal ops to handle variants
Date: Fri, 21 May 2021 11:16:30 +0200	[thread overview]
Message-ID: <4753042.QJadu78ljV@diego> (raw)
In-Reply-To: <20210521083637.3221304-4-benjamin.gaignard@collabora.com>

Am Freitag, 21. Mai 2021, 10:36:36 CEST schrieb Benjamin Gaignard:
> Add internal ops to be able to handle incoming variant v2.
> The goal is to keep the overall structure of the framework but
> to allow to add the evolution of this hardware block.
> 
> The ops are global for a SoC because iommu domains are not
> attached to a specific devices if they are for a virtuel device like
> drm. Use a global variable shouldn't be since SoC usually doesn't
> embedded different versions of the iommu hardware block.
> If that happen one day a WARN_ON will be displayed at probe time.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>

Reviewed-by: Heiko Stuebner <heiko@sntech.de>




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

  reply	other threads:[~2021-05-21  9:16 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21  8:36 [PATCH v5 0/4] Add IOMMU driver for rk356x Benjamin Gaignard
2021-05-21  8:36 ` Benjamin Gaignard
2021-05-21  8:36 ` Benjamin Gaignard
2021-05-21  8:36 ` Benjamin Gaignard
2021-05-21  8:36 ` [PATCH v5 1/4] dt-bindings: iommu: rockchip: Convert IOMMU to DT schema Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  9:18   ` Heiko Stübner
2021-05-21  9:18     ` Heiko Stübner
2021-05-21  9:18     ` Heiko Stübner
2021-05-21  9:18     ` Heiko Stübner
2021-05-21  8:36 ` [PATCH v5 2/4] dt-bindings: iommu: rockchip: Add compatible for v2 Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  9:18   ` Heiko Stübner
2021-05-21  9:18     ` Heiko Stübner
2021-05-21  9:18     ` Heiko Stübner
2021-05-21  9:18     ` Heiko Stübner
2021-05-21 11:52   ` Robin Murphy
2021-05-21 11:52     ` Robin Murphy
2021-05-21 11:52     ` Robin Murphy
2021-05-21 11:52     ` Robin Murphy
2021-05-21  8:36 ` [PATCH v5 3/4] iommu: rockchip: Add internal ops to handle variants Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  9:16   ` Heiko Stübner [this message]
2021-05-21  9:16     ` Heiko Stübner
2021-05-21  9:16     ` Heiko Stübner
2021-05-21  9:16     ` Heiko Stübner
2021-05-21 12:58   ` Robin Murphy
2021-05-21 12:58     ` Robin Murphy
2021-05-21 12:58     ` Robin Murphy
2021-05-21 12:58     ` Robin Murphy
2021-05-21 13:38     ` Benjamin Gaignard
2021-05-21 13:38       ` Benjamin Gaignard
2021-05-21 13:38       ` Benjamin Gaignard
2021-05-21 13:38       ` Benjamin Gaignard
2021-05-21 14:44       ` Robin Murphy
2021-05-21 14:44         ` Robin Murphy
2021-05-21 14:44         ` Robin Murphy
2021-05-21 14:44         ` Robin Murphy
2021-05-21  8:36 ` [PATCH v5 4/4] iommu: rockchip: Add support for iommu v2 Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  8:36   ` Benjamin Gaignard
2021-05-21  9:17   ` Heiko Stübner
2021-05-21  9:17     ` Heiko Stübner
2021-05-21  9:17     ` Heiko Stübner
2021-05-21  9:17     ` Heiko Stübner
2021-05-21 13:42   ` Robin Murphy
2021-05-21 13:42     ` Robin Murphy
2021-05-21 13:42     ` Robin Murphy
2021-05-21 13:42     ` Robin Murphy

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