iommu/amd: Introduce PPR_TAG_LAST_PAGE() macro

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The PPR tag field (PPRtag) encodes two distinct fields: the 9-bit tag
value (bits 8-0) and the last-page indicator L bit (bit 9).

Fix PPR_TAG() to mask only the 9-bit tag field and introduce
PPR_TAG_LAST_PAGE to explicitly extract the L bit. This way it becomes
easy to read.

Cc: Wei Huang <wei.huang2@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Ankit Soni <Ankit.Soni@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

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Vasant Hegde 2026-08-11 04:08:57 +00:00 • committed by Joerg Roedel

parent 5322e19fc5

commit 589f0cc1e0

2 changed files with 5 additions and 5 deletions

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3

drivers/iommu/amd/amd_iommu_types.h

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7

drivers/iommu/amd/ppr.c

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