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Groups > linux.kernel > #1483935
| From | Mark Craske <Mark_Craske@mentor.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v1 0/2] Two small dma-coherent bug fixes |
| Date | 2016-09-15 11:40 +0200 |
| Message-ID | <shBjb-5el-19@gated-at.bofh.it> (permalink) |
| References | <shBjb-5el-13@gated-at.bofh.it> <shBjb-5el-15@gated-at.bofh.it> <shBjb-5el-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
This patchset contains the following commits: Bastian Hecht (1): drivers: dma-coherent: Move spinlock in dma_alloc_from_coherent() George G. Davis (1): drivers: dma-coherent: Fix DMA coherent size for less than page drivers/base/dma-coherent.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) Background information ---------------------- These 2 commits were originally developed and validated on an ARM i.MX6 based commercial project running a highly modified 3.14 Linux kernel. The commits were needed to amend dma_mmap_from_coherent() to deal correctly with mappings of less than one page, and to improve latency on SMP systems where large DMA buffers are used. The commits have been forward-ported to driver-core-next master branch HEAD (c693593 Linux 4.8-rc5) Commit details -------------- This patchset fixes a couple of problems with dma-coherent seen on a commercial i.MX6 based system. Note: Testing has only been done on an ARM i.MX6 based platform. -- 1.7.9.5
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[PATCH v1 0/2] Two small dma-coherent bug fixes Mark Craske <Mark_Craske@mentor.com> - 2016-09-15 11:40 +0200 [PATCH v1 2/2] drivers: dma-coherent: Move spinlock in dma_alloc_from_coherent() Mark Craske <Mark_Craske@mentor.com> - 2016-09-15 11:50 +0200
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