From: Nicolin Chen <nicolinc@nvidia.com>
To: Jason Gunthorpe <jgg@nvidia.com>
Cc: <iommu@lists.linux.dev>, Joerg Roedel <joro@8bytes.org>,
<linux-arm-kernel@lists.infradead.org>,
Robin Murphy <robin.murphy@arm.com>,
Will Deacon <will@kernel.org>,
Michael Shavit <mshavit@google.com>, <patches@lists.linux.dev>,
Ryan Roberts <ryan.roberts@arm.com>,
Mostafa Saleh <smostafa@google.com>
Subject: Re: [PATCH v3 0/9] Tidy some minor things in the stream table/cd table area
Date: Thu, 5 Sep 2024 13:10:12 -0700 [thread overview]
Message-ID: <ZtoQJAV3+j6oCmyf@nvidia.com> (raw)
In-Reply-To: <0-v3-9fef8cdc2ff6+150d1-smmuv3_tidy_jgg@nvidia.com>
On Tue, Aug 06, 2024 at 08:31:14PM -0300, Jason Gunthorpe wrote:
> Will pointed out that two places referring to the CD/STE struct did not
> get the new types. While auditing this code a few more oddities were
> noticed. Based on a feedback from Mostafa and Nicolin a few more things
> were fixed up too
>
> - Use types for all the HW structures everywhere even for the L1
> descriptors that are just a single 8 bytes. This helps with clarity of
> what everthing is pointing at
> - Use indexing helpers for the STE/CD two level calculations
> - Use sizeof(struct X) instead of open coded math on constants. The sizeof
> naturally follows the type of the related variable in almost all cases
> - Remove redundant dma_addr_t's and save some memory
> - Remove redundant devm usage
> - Use the modern rbtree API
>
> Parts of this have been sitting in my tree for a while now, it grew a bit
> since v1, but nothing is particularly profound here. Enough is merged now
> that they can be cleanly based and are seperate from my other series.
>
> v3:
> - Rebase to v6.11-rc2
> - Preserve the "2-level strtab only covers %u/%u bits of SID" without
> change
> - Vertically align some of the constants
> - Use u32 for the type of the index and sid
> - Fix missing * in le64_to_cpu() in interior patch
> - Bring back accidently lost "Use the new rb tree helpers" patch
I didn't exclusively test this series but it has been included in
my nesting branch for a while. Considering 2-stage configurations
and vSVA cases are involved during my testings, all my Tested-bys
still stand.
Thanks
Nicolin
next prev parent reply other threads:[~2024-09-05 20:12 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-06 23:31 [PATCH v3 0/9] Tidy some minor things in the stream table/cd table area Jason Gunthorpe
2024-08-06 23:31 ` [PATCH v3 1/9] iommu/arm-smmu-v3: Use the new rb tree helpers Jason Gunthorpe
2024-09-06 13:23 ` Will Deacon
2024-08-06 23:31 ` [PATCH v3 2/9] iommu/arm-smmu-v3: Add arm_smmu_strtab_l1/2_idx() Jason Gunthorpe
2024-09-06 13:18 ` Will Deacon
2024-09-06 14:40 ` Jason Gunthorpe
2024-08-06 23:31 ` [PATCH v3 3/9] iommu/arm-smmu-v3: Add types for each level of the 2 level stream table Jason Gunthorpe
2024-08-06 23:31 ` [PATCH v3 4/9] iommu/arm-smmu-v3: Reorganize struct arm_smmu_strtab_cfg Jason Gunthorpe
2024-09-06 13:19 ` Will Deacon
2024-09-06 15:06 ` Jason Gunthorpe
2024-08-06 23:31 ` [PATCH v3 5/9] iommu/arm-smmu-v3: Remove strtab_base/cfg Jason Gunthorpe
2024-08-06 23:31 ` [PATCH v3 6/9] iommu/arm-smmu-v3: Do not use devm for the cd table allocations Jason Gunthorpe
2024-08-06 23:31 ` [PATCH v3 7/9] iommu/arm-smmu-v3: Shrink the cdtab l1_desc array Jason Gunthorpe
2024-09-06 13:21 ` Will Deacon
2024-08-06 23:31 ` [PATCH v3 8/9] iommu/arm-smmu-v3: Add types for each level of the CD table Jason Gunthorpe
2024-08-06 23:31 ` [PATCH v3 9/9] iommu/arm-smmu-v3: Reorganize struct arm_smmu_ctx_desc_cfg Jason Gunthorpe
2024-09-06 13:22 ` Will Deacon
2024-09-06 15:13 ` Jason Gunthorpe
2024-09-05 19:25 ` [PATCH v3 0/9] Tidy some minor things in the stream table/cd table area Jason Gunthorpe
2024-09-05 20:10 ` Nicolin Chen [this message]
2024-09-06 14:35 ` Will Deacon
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