linux-kernel - [PATCH v5 0/7] Improve tlb range flush

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Message-ID: <1572850868-22315-1-git-send-email-yong.wu@mediatek.com>
Date:   Mon, 4 Nov 2019 15:01:01 +0800
From:   Yong Wu <yong.wu@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Joerg Roedel <joro@...tes.org>,
        Will Deacon <will.deacon@....com>
CC:     Evan Green <evgreen@...omium.org>,
        Robin Murphy <robin.murphy@....com>,
        Tomasz Figa <tfiga@...gle.com>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <iommu@...ts.linux-foundation.org>, <yong.wu@...iatek.com>,
        <youlin.pei@...iatek.com>, Nicolas Boichat <drinkcat@...omium.org>,
        <anan.sun@...iatek.com>, <cui.zhang@...iatek.com>,
        <chao.hao@...iatek.com>, <edison.hsieh@...iatek.com>
Subject: [PATCH v5 0/7] Improve tlb range flush

This patchset mainly fixes a tlb flush timeout issue and use the new
iommu_gather to re-implement the tlb flush flow. and several clean up
patches about the tlb_flush.

change note:

v5: No code change. Only update the commit message of the last patch[7/7]
    suggested from Tomasz in the internal review.

v4: https://lore.kernel.org/linux-iommu/1571196792-12382-1-git-send-email-yong.wu@mediatek.com/#t
    1. Add a new tlb_lock for tlb operations.
    2. Delete the pgtlock.
    3. Remove the "writel" patch.

v3: https://lore.kernel.org/linux-iommu/1571035101-4213-1-git-send-email-yong.wu@mediatek.com/T/#t
   1. Use the gather to implement the tlb_flush suggested from Tomasz.
   2. add some clean up patches.

v2:
https://lore.kernel.org/linux-iommu/1570627143-29441-1-git-send-email-yong.wu@mediatek.com/T/#t
   1. rebase on v5.4-rc1
   2. only split to several patches.

v1:
https://lore.kernel.org/linux-iommu/CAAFQd5C3U7pZo4SSUJ52Q7E+0FaUoORQFbQC5RhCHBhi=NFYTw@mail.gmail.com/T/#t

Yong Wu (7):
  iommu/mediatek: Correct the flush_iotlb_all callback
  iommu/mediatek: Add a new tlb_lock for tlb_flush
  iommu/mediatek: Use gather to achieve the tlb range flush
  iommu/mediatek: Delete the leaf in the tlb_flush
  iommu/mediatek: Move the tlb_sync into tlb_flush
  iommu/mediatek: Get rid of the pgtlock
  iommu/mediatek: Reduce the tlb flush timeout value

 drivers/iommu/mtk_iommu.c | 88 +++++++++++++++--------------------------------
 drivers/iommu/mtk_iommu.h |  2 +-
 2 files changed, 29 insertions(+), 61 deletions(-)

-- 
1.9.1