From: Leon Romanovsky <leon@kernel.org>
To: Marek Szyprowski <m.szyprowski@samsung.com>,
Robin Murphy <robin.murphy@arm.com>, Jon Mason <jdmason@kudzu.us>,
Dave Jiang <dave.jiang@intel.com>,
Allen Hubbe <allenbh@gmail.com>
Cc: iommu@lists.linux.dev, linux-kernel@vger.kernel.org, ntb@lists.linux.dev
Subject: [PATCH v2 0/6] Add DMA attributes tracking
Date: Fri, 1 May 2026 09:35:04 +0300 [thread overview]
Message-ID: <20260501-dma-attrs-debug-v2-0-8dbac75cd501@nvidia.com> (raw)
The DMA API expects that callers use the same attributes when mapping
and unmapping. Add tracking to verify this and catch mismatches.
Thanks
---
Changes in v2:
- Split original patch to be a series
- Added all unmap flows
- Skipped DMA attributes which exist only in map path
- Added ntb patch
- Link to v1: https://patch.msgid.link/20260323-dma-attrs-debug-v1-1-6275228ca300@nvidia.com
---
Leon Romanovsky (6):
ntb: Store original DMA address for future release
ntb: Use consistent DMA attributes when freeing DMA mappings
dma-debug: Remove unused DMA attribute parameter
dma-debug: Record DMA attributes in debug entry
dma-debug: Feed DMA attribute for unmapping flows too
dma-debug: Ensure mappings are created and released with matching attributes
drivers/ntb/ntb_transport.c | 10 +++---
kernel/dma/debug.c | 87 +++++++++++++++++++++++++++++++--------------
kernel/dma/debug.h | 25 ++++++-------
kernel/dma/mapping.c | 10 +++---
4 files changed, 85 insertions(+), 47 deletions(-)
---
base-commit: 254f49634ee16a731174d2ae34bc50bd5f45e731
change-id: 20260323-dma-attrs-debug-85e282d6f3bb
Best regards,
--
Leon Romanovsky <leonro@nvidia.com>
next reply other threads:[~2026-05-01 6:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-01 6:35 Leon Romanovsky [this message]
2026-05-01 6:35 ` [PATCH v2 1/6] ntb: Store original DMA address for future release Leon Romanovsky
2026-05-01 17:00 ` Dave Jiang
2026-05-01 6:35 ` [PATCH v2 2/6] ntb: Use consistent DMA attributes when freeing DMA mappings Leon Romanovsky
2026-05-01 17:00 ` Dave Jiang
2026-05-01 6:35 ` [PATCH v2 3/6] dma-debug: Remove unused DMA attribute parameter Leon Romanovsky
2026-05-01 6:35 ` [PATCH v2 4/6] dma-debug: Record DMA attributes in debug entry Leon Romanovsky
2026-05-01 6:35 ` [PATCH v2 5/6] dma-debug: Feed DMA attribute for unmapping flows too Leon Romanovsky
2026-05-01 6:35 ` [PATCH v2 6/6] dma-debug: Ensure mappings are created and released with matching attributes Leon Romanovsky
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