Hi Rahul,
On 09/03/2021 18:19, Rahul Singh wrote:
This patch is the work to fix the stream match conflict issue when two devices
have the same stream-id.
Approach taken is to merge the below commit from Linux driver to fix the
issue.
1. "iommu/arm-smmu: Handle stream IDs more dynamically"
commit 21174240e4f4439bb8ed6c116cdbdc03eba2126e
2. "iommu/arm-smmu: Consolidate stream map entry state"
commit 1f3d5ca43019bff1105838712d55be087d93c0da
3. "iommu/arm-smmu: Keep track of S2CR state"
commit 8e8b203eabd8b9e96d02d6339e4abce3e5a7ea4b
4. "iommu/arm-smmu: Add a stream map entry iterator"
commit d3097e39302083d58922a3d1032d7d59a63d263d
5. "iommu/arm-smmu: Intelligent SMR allocation"
commit 588888a7399db352d2b1a41c9d5b3bf0fd482390
A couple of questions:
* Are they backported verbatim from Linux upstream?
* Did you check there was no bug fix afterwards?
Cheers,
--
Julien Grall