From: Baolu Lu <baolu.lu@linux.intel.com>
To: Jason Gunthorpe <jgg@nvidia.com>,
David Woodhouse <dwmw2@infradead.org>,
iommu@lists.linux.dev, Joerg Roedel <joro@8bytes.org>,
Robin Murphy <robin.murphy@arm.com>,
Will Deacon <will@kernel.org>
Cc: baolu.lu@linux.intel.com, Kevin Tian <kevin.tian@intel.com>,
patches@lists.linux.dev, Tina Zhang <tina.zhang@intel.com>,
Wei Wang <wei.w.wang@intel.com>
Subject: Re: [PATCH v2 03/10] iommupt: Use the incoherent start/stop functions for PT_FEAT_DMA_INCOHERENT
Date: Sun, 21 Sep 2025 21:29:50 +0800 [thread overview]
Message-ID: <9766f1a2-6542-4672-86e7-be2d78c0ac52@linux.intel.com> (raw)
In-Reply-To: <3-v2-44d4d9e727e7+18ad8-iommu_pt_vtd_jgg@nvidia.com>
On 8/27/2025 1:26 AM, Jason Gunthorpe wrote:
> This is the first step to supporting an incoherent walker, start and stop
> the incoherence around the allocation and frees of the page table memory.
>
> The iommu_pages API maps this to dma_map/unmap_single(), or arch cache
> flushing calls.
>
> Signed-off-by: Jason Gunthorpe<jgg@nvidia.com>
> ---
> drivers/iommu/generic_pt/iommu_pt.h | 81 ++++++++++++++++++++------
> drivers/iommu/generic_pt/kunit_iommu.h | 1 +
> drivers/iommu/generic_pt/pt_defs.h | 3 +
> include/linux/generic_pt/common.h | 6 ++
> include/linux/generic_pt/iommu.h | 7 +++
> 5 files changed, 81 insertions(+), 17 deletions(-)
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
next prev parent reply other threads:[~2025-09-21 13:29 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-26 17:26 [PATCH v2 00/10] Convert Intel VT-D to use the generic iommu page table Jason Gunthorpe
2025-08-26 17:26 ` [PATCH v2 01/10] iommu/pages: Add support for a incoherent IOMMU page walker Jason Gunthorpe
2025-09-21 9:54 ` Baolu Lu
2025-09-22 16:32 ` Jason Gunthorpe
2025-10-14 7:41 ` Tian, Kevin
2025-08-26 17:26 ` [PATCH v2 02/10] iommupt: Add basic support for SW bits in the page table Jason Gunthorpe
2025-09-21 10:21 ` Baolu Lu
2025-10-14 7:45 ` Tian, Kevin
2025-10-21 13:18 ` Jason Gunthorpe
2025-08-26 17:26 ` [PATCH v2 03/10] iommupt: Use the incoherent start/stop functions for PT_FEAT_DMA_INCOHERENT Jason Gunthorpe
2025-09-21 13:29 ` Baolu Lu [this message]
2025-10-14 7:51 ` Tian, Kevin
2025-10-21 13:20 ` Jason Gunthorpe
2025-08-26 17:26 ` [PATCH v2 04/10] iommupt: Flush the CPU cache after any writes to the page table Jason Gunthorpe
2025-09-22 2:12 ` Baolu Lu
2025-09-22 14:42 ` Jason Gunthorpe
2025-09-23 2:17 ` Baolu Lu
2025-09-23 14:10 ` Jason Gunthorpe
2025-09-24 2:30 ` Baolu Lu
2025-09-22 2:31 ` Baolu Lu
2025-09-22 14:44 ` Jason Gunthorpe
2025-09-23 2:29 ` Baolu Lu
2025-09-23 14:13 ` Jason Gunthorpe
2025-09-24 3:05 ` Baolu Lu
2025-10-14 7:53 ` Tian, Kevin
2025-10-21 13:50 ` Jason Gunthorpe
2025-08-26 17:26 ` [PATCH v2 05/10] iommupt: Add the Intel VT-D second stage page table format Jason Gunthorpe
2025-09-22 3:06 ` Baolu Lu
2025-10-14 7:54 ` Tian, Kevin
2025-10-21 13:58 ` Jason Gunthorpe
2025-08-26 17:26 ` [PATCH v2 06/10] iommupt/x86: Set the dirty bit only for writable PTEs Jason Gunthorpe
2025-10-14 7:55 ` Tian, Kevin
2025-08-26 17:26 ` [PATCH v2 07/10] iommupt/x86: Support SW bits and permit PT_FEAT_DMA_INCOHERENT Jason Gunthorpe
2025-10-14 7:55 ` Tian, Kevin
2025-08-26 17:26 ` [PATCH v2 08/10] iommu/vt-d: Use the generic iommu page table Jason Gunthorpe
2025-09-22 11:17 ` Baolu Lu
2025-10-14 7:55 ` Tian, Kevin
2025-08-26 17:26 ` [PATCH v2 09/10] iommu/vt-d: Follow PT_FEAT_DMA_INCOHERENT into the PASID entry Jason Gunthorpe
2025-09-22 13:00 ` Baolu Lu
2025-10-14 7:58 ` Tian, Kevin
2025-08-26 17:26 ` [PATCH v2 10/10] iommupt: Add a kunit test for the SW bits Jason Gunthorpe
2025-10-14 7:58 ` Tian, Kevin
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