From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>,
iommu@lists.linux-foundation.org, Yong Wu <yong.wu@mediatek.com>,
Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
"moderated list:MEDIATEK IOMMU DRIVER"
<linux-mediatek@lists.infradead.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-arm-kernel@lists.infradead.org>,
open list <linux-kernel@vger.kernel.org>,
kernel@collabora.com, linux-media@vger.kernel.org,
sebastian.reichel@collabora.com
Subject: Re: [PATCH v2 1/5] iommu/mediatek: Remove for_each_m4u in tlb_sync_all
Date: Mon, 10 Jan 2022 12:42:38 +0100 [thread overview]
Message-ID: <41c17006-af5d-19ec-210e-f6f12542eb75@collabora.com> (raw)
In-Reply-To: <20211208120744.2415-2-dafna.hirschfeld@collabora.com>
Il 08/12/21 13:07, Dafna Hirschfeld ha scritto:
> From: Yong Wu <yong.wu@mediatek.com>
>
> The tlb_sync_all is called from these three functions:
> a) flush_iotlb_all: it will be called for each a iommu HW.
> b) tlb_flush_range_sync: it already has for_each_m4u.
> c) in irq: When IOMMU HW translation fault, Only need flush itself.
>
> Thus, No need for_each_m4u in this tlb_sync_all. Remove it.
>
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> Reviewed-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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next prev parent reply other threads:[~2022-01-10 11:43 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-08 12:07 [PATCH v2 0/5] iommu/mediatek: Fix tlb flush logic Dafna Hirschfeld
2021-12-08 12:07 ` [PATCH v2 1/5] iommu/mediatek: Remove for_each_m4u in tlb_sync_all Dafna Hirschfeld
2022-01-10 11:42 ` AngeloGioacchino Del Regno [this message]
2021-12-08 12:07 ` [PATCH v2 2/5] iommu/mediatek: Always check runtime PM status in tlb flush range callback Dafna Hirschfeld
2021-12-13 7:53 ` Yong Wu
2022-01-10 11:43 ` AngeloGioacchino Del Regno
2021-12-08 12:07 ` [PATCH v2 3/5] iommu/mediatek: Remove the power status checking in tlb flush all Dafna Hirschfeld
2022-01-10 11:43 ` AngeloGioacchino Del Regno
2021-12-08 12:07 ` [PATCH v2 4/5] iommu/mediatek: Add tlb_lock in tlb_flush_all Dafna Hirschfeld
2022-01-10 11:44 ` AngeloGioacchino Del Regno
2021-12-08 12:07 ` [PATCH v2 5/5] iommu/mediatek: Always tlb_flush_all when each PM resume Dafna Hirschfeld
2022-01-10 11:44 ` AngeloGioacchino Del Regno
2022-03-04 10:05 ` [PATCH v2 0/5] iommu/mediatek: Fix tlb flush logic Joerg Roedel
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