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
WARNING: multiple messages have this Message-ID (diff)
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: dianders@chromium.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linuxarm@huawei.com, iommu@lists.linux-foundation.org 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 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next reply other threads:[~2021-07-12 11:18 UTC|newest] Thread overview: 16+ 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 0/6] iommu: Enhance IOMMU default DMA mode build options John Garry 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 ` 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 ` 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 ` John Garry 2021-07-12 11:12 ` [PATCH v15 4/6] iommu/vt-d: Add support for " John Garry 2021-07-12 11:12 ` John Garry 2021-07-12 11:12 ` [PATCH v15 5/6] iommu/amd: " John Garry 2021-07-12 11:12 ` John Garry 2021-07-12 11:12 ` [PATCH v15 6/6] iommu: Remove mode argument from iommu_set_dma_strict() John Garry 2021-07-12 11:12 ` John Garry 2021-07-26 11:28 ` [PATCH v15 0/6] iommu: Enhance IOMMU default DMA mode build options Joerg Roedel 2021-07-26 11:28 ` Joerg Roedel
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