From: John Garry <john.garry@huawei.com>
To: <joro@8bytes.org>, <will@kernel.org>, <dwmw2@infradead.org>,
<baolu.lu@linux.intel.com>, <robin.murphy@arm.com>,
<corbet@lwn.net>
Cc: <linux-kernel@vger.kernel.org>,
<iommu@lists.linux-foundation.org>, <linuxarm@huawei.com>,
<thunder.leizhen@huawei.com>, <chenxiang66@hisilicon.com>,
<linux-doc@vger.kernel.org>, <dianders@chromium.org>,
John Garry <john.garry@huawei.com>
Subject: [PATCH v15 0/6] iommu: Enhance IOMMU default DMA mode build options
Date: Mon, 12 Jul 2021 19:12:14 +0800 [thread overview]
Message-ID: <1626088340-5838-1-git-send-email-john.garry@huawei.com> (raw)
This is a reboot of Zhen Lei's series from a couple of years ago, which
never made it across the line.
I still think that it has some value, so taking up the mantle.
Motivation:
Allow lazy mode be default mode for DMA domains for all ARCHs, and not
only those who hardcode it (to be lazy). For ARM64, currently we must use
a kernel command line parameter to use lazy mode, which is less than
ideal.
I have now included the print for strict/lazy mode, which I originally
sent in:
https://lore.kernel.org/linux-iommu/72eb3de9-1d1c-ae46-c5a9-95f26525d435@huawei.com/
There was some concern there about drivers and their custom prints
conflicting with the print in that patch, but I think that it
should be ok.
Based on v5.14-rc1
Differences to v14:
- Add RB tags (Thanks!)
- Rebase
Differences to v13:
- Improve strict mode deprecation messages and cut out some
kernel-parameters.txt legacy description
- Add tag in 1/6
- use pr_info_once() for vt-d message about VM and caching
Differences to v12:
- Add Robin's RB tags (thanks!)
- Add a patch to mark x86 strict cmdline params as deprecated
- Improve wording in Kconfig change and tweak iommu_dma_strict declaration
John Garry (3):
iommu: Deprecate Intel and AMD cmdline methods to enable strict mode
iommu: Print strict or lazy mode at init time
iommu: Remove mode argument from iommu_set_dma_strict()
Zhen Lei (3):
iommu: Enhance IOMMU default DMA mode build options
iommu/vt-d: Add support for IOMMU default DMA mode build options
iommu/amd: Add support for IOMMU default DMA mode build options
.../admin-guide/kernel-parameters.txt | 12 ++----
drivers/iommu/Kconfig | 41 +++++++++++++++++++
drivers/iommu/amd/amd_iommu_types.h | 6 ---
drivers/iommu/amd/init.c | 7 ++--
drivers/iommu/amd/iommu.c | 6 ---
drivers/iommu/intel/iommu.c | 16 ++++----
drivers/iommu/iommu.c | 12 ++++--
include/linux/iommu.h | 2 +-
8 files changed, 65 insertions(+), 37 deletions(-)
--
2.26.2
next reply other threads:[~2021-07-12 11:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-12 11:12 John Garry [this message]
2021-07-12 11:12 ` [PATCH v15 1/6] iommu: Deprecate Intel and AMD cmdline methods to enable strict mode John Garry
2021-07-12 11:12 ` [PATCH v15 2/6] iommu: Print strict or lazy mode at init time John Garry
2021-07-12 11:12 ` [PATCH v15 3/6] iommu: Enhance IOMMU default DMA mode build options John Garry
2021-07-12 11:12 ` [PATCH v15 4/6] iommu/vt-d: Add support for " John Garry
2021-07-12 11:12 ` [PATCH v15 5/6] iommu/amd: " John Garry
2021-07-12 11:12 ` [PATCH v15 6/6] iommu: Remove mode argument from iommu_set_dma_strict() John Garry
2021-07-26 11:28 ` [PATCH v15 0/6] iommu: Enhance IOMMU default DMA mode build options Joerg Roedel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1626088340-5838-1-git-send-email-john.garry@huawei.com \
--to=john.garry@huawei.com \
--cc=baolu.lu@linux.intel.com \
--cc=chenxiang66@hisilicon.com \
--cc=corbet@lwn.net \
--cc=dianders@chromium.org \
--cc=dwmw2@infradead.org \
--cc=iommu@lists.linux-foundation.org \
--cc=joro@8bytes.org \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxarm@huawei.com \
--cc=robin.murphy@arm.com \
--cc=thunder.leizhen@huawei.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).