From: chenxiang <chenxiang66@hisilicon.com>
To: <robin.murphy@arm.com>, <will@kernel.org>, <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org, linuxarm@openeuler.org,
linuxarm@huawei.com
Subject: [PATCH 0/4] Free cached iovas when rmmod the driver of the last device in group
Date: Mon, 7 Jun 2021 10:42:58 +0800 [thread overview]
Message-ID: <1623033782-57907-1-git-send-email-chenxiang66@hisilicon.com> (raw)
From: Xiang Chen <chenxiang66@hisilicon.com>
When rmmod the driver of the last device in the group, cached iovas are not
used, and it is better to free them to save memories. And also export
function free_rcache_cached_iovas() and iommu_domain_to_iova().
Xiang Chen (4):
iommu/iova: add a function to free all rcached iovas and export it
iommu/iova: use function free_rcache_cached_iovas() to free all
rcached iovas
dma-iommu: add a interface to get iova_domain from iommu domain
iommu: free cached iovas when rmmod the driver of the last device in
the group
drivers/iommu/dma-iommu.c | 7 +++++++
drivers/iommu/iommu.c | 7 +++++++
drivers/iommu/iova.c | 17 ++++++++++++-----
include/linux/dma-iommu.h | 6 ++++++
include/linux/iova.h | 5 +++++
5 files changed, 37 insertions(+), 5 deletions(-)
--
2.8.1
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next reply other threads:[~2021-06-07 2:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-07 2:42 chenxiang [this message]
2021-06-07 2:42 ` [PATCH 1/4] iommu/iova: add a function to free all rcached iovas and export it chenxiang
2021-06-07 2:43 ` [PATCH 2/4] iommu/iova: use function free_rcache_cached_iovas() to free all rcached iovas chenxiang
2021-06-07 2:43 ` [PATCH 3/4] dma-iommu: add a interface to get iova_domain from iommu domain chenxiang
2021-06-07 2:43 ` [PATCH 4/4] iommu: free cached iovas when rmmod the driver of the last device in the group chenxiang
2021-06-07 11:23 ` [PATCH 0/4] Free cached iovas when rmmod the driver of the last device in group Robin Murphy
2021-06-08 7:50 ` [Linuxarm] " chenxiang (M)
2021-06-08 14:17 ` Robin Murphy
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