From: Chao Gao <chao.gao@intel.com>
To: iommu@lists.linux.dev, linux-kernel@vger.kernel.org
Cc: Chao Gao <chao.gao@intel.com>,
Christoph Hellwig <hch@infradead.org>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Robin Murphy <robin.murphy@arm.com>
Subject: [RESEND PATCH 0/3] Small fixes for swiotlb
Date: Mon, 18 Jul 2022 09:16:04 +0800 [thread overview]
Message-ID: <20220718011608.106289-1-chao.gao@intel.com> (raw)
Resend reason: use correct IOMMU mailing list.
---
They are found when I try to rebase my swiotlb optimizations onto the
latest dma-mapping tree.
Patch 1 is to remove unused fields.
Patch 2-3 are to fix a corner case that area size can be smaller than the
number of slots in a segment (128). Such small areas conflict with an
implication of the mechanism used to track free slots.
Chao Gao (3):
swiotlb: remove unused fields in io_tlb_mem
swiotlb: consolidate rounding up default_nslabs
swiotlb: ensure a segment doesn't cross the area boundary
include/linux/swiotlb.h | 5 -----
kernel/dma/swiotlb.c | 45 ++++++++++++++++++++++++-----------------
2 files changed, 27 insertions(+), 23 deletions(-)
--
2.25.1
next reply other threads:[~2022-07-18 1:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-18 1:16 Chao Gao [this message]
2022-07-18 1:16 ` [RESEND PATCH 1/3] swiotlb: remove unused fields in io_tlb_mem Chao Gao
2022-07-18 1:16 ` [RESEND PATCH 2/3] swiotlb: consolidate rounding up default_nslabs Chao Gao
2022-07-18 1:16 ` [RESEND PATCH 3/3] swiotlb: ensure a segment doesn't cross the area boundary Chao Gao
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