Visionfive2 evl deve #10
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…lock to vchan_lock,the inband operation success
…ace all lock api in driver to do ib dma operation successfully
…tion still success
…ock to vchan_lock,the inband dma operation by spi is successful
…y use dma to send data to dac device.The spi path is still not working for now.
…handler can finally run in oob stage
…nt continue after the first period
…t be freed in completed list
…tize OOB descriptors
ruiqurm
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Oct 31, 2025
ruiqurm
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ruiqurm
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Look good for me. Please remove some unused comments and files.
user_scripts/ib_test/Makefile
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What is the ib_test used for? Is it useless?
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sorry,This is a test script for triggering in-band DMA transfers. Its functionality has already been integrated into test_tool. I will remove it soon.
config
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| @@ -0,0 +1,8599 @@ | |||
| # | |||
drivers/spi/spi-pl022.c
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| read_cpsr = readw(SSP_CPSR(spi_base_addr_virt)); | ||
| read_imsc = readw(SSP_IMSC(spi_base_addr_virt)); | ||
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| pr_info("SPI CR0=0x%x\n",read_cr0); |
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okay,the useless stuff in this driver will be removed
llvm-snapshot.gpg.key
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| @@ -0,0 +1,52 @@ | |||
| -----BEGIN PGP PUBLIC KEY BLOCK----- | |||
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work done：
Familiarized with StarFive2 DW-AXI-DMAC driver: register configs, descriptor management, channel scheduling, interrupts, and dmaengine ↔ virt-dma call paths.
Updated synchronization APIs to replace blocking locks with EVL-safe mechanisms, ensuring OOB and IB context compatibility without deadlocks.
Extended dmaengine to support cyclic transfers and OOB pulse mode for low-latency real-time tasks.
Introduced desc_submitted_oob queue for OOB descriptors, prioritizing them over IB descriptors.
Modified virt-dma framework to allow OOB descriptor “insertion” during IB transfers and ensure context-aware completion callbacks.