“failed to request dma”错误通常表明系统在尝试请求DMA(直接内存访问)通道或资源时失败了。DMA是一种允许硬件子系统直接读写主内存的技术,而无需CPU干预,这在数据传输过程中可以显著提高效率。针对这个错误,我们可以从以下几个方面进行分析和排查: 确定错误的具体含义和可能原因: 这个错误通常意味着系统无法满足某...
Solved: I didn't find description about Flexio DMA (async) request 0/1/2/3 How should I choose them for FlexIO DMA transaction ? what is
27 changes: 27 additions & 0 deletions 27 areas/mem/page_pool07_bench_DMA_fix.org Original file line numberDiff line numberDiff line change@@ -8,6 +8,7 @@ - [[#baseline-before-patchset][baseline: Before patchset]] - [[#pp01-dma-fix-v7][pp01-DMA-fix-v7]]...
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 1.2G 1 loop /overlay/base sda 8:0 1 465.8G 0 disk `-sda1 8:1 1 465.8G 0 part /media/Retrodisk mmcblk1 179:0 0 14.5G 0 disk |-mmcblk1p1 179:1 0 3G 0 part /boot `-mmcblk1p2 179:2 0 11.3G 0 part /media/SHARE...
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I tend to agree. But we need to start converting the users at some point either way. Another issue is the fact that the current dmaengine API is using all the good names I can think of ;) > On the other hand there are a lot of drivers that are used on the set ...
MEMORY CONTROL CIRCUIT, DMA REQUEST BLOCK AND MEMORY ACCESS SYSTEMPROBLEM TO BE SOLVED: To start continuous access from an optional address by simple constitution.KURONUMA AKIRA黒沼 明NAKAYAMA TORU中山 亨KATSU TAKUJI勝 拓二TANAKA SOHEI田中 壮平...
A Direct Memory Access (DMA) device includes a first buffer which holds a first transfer information required for a first transfer request, and a second buffer which holds a second transfer information required for a second transfer request, and a transfer request comparison circuit which determines...
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DMA REQUEST CONTROLLER AND I/O CONTROLLERPROBLEM TO BE SOLVED: To prevent the long-time monopolization of a bus due to the DMA transfer and to assure the normal operation of every device in a multitask environment.NAKAMURA NOBUTAKA中村 伸隆...