cpm_muram_dma(9)

✨ cpm_muram_dma(9) ✨

okay bestie, welcome to the Kernel API Manual — this little page is all about cpm_muram_dma, and honestly? it's a glow-up for an address 💅

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🌸 NAME 🌸

cpm_muram_dma — turn a muram virtual address into a DMA address

like, it literally takes your muram virtual address and serves it as a DMA address. a whole transformation moment. main character energy fr fr 🦋

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🎀 SYNOPSIS 🎀

dma_addr_t cpm_muram_dma (void __iomem *addr );

that's it. that's the whole vibe check. one function, one argument, one dma_addr_t coming back at you ✨

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💖 ARGUMENTS 💖

• addr — virtual address from cpm_muram_addr to convert

so yeah, addr is the virtual address you got from cpm_muram_addr, and this is the part where we convert it. no cap, that's the entire assignment 🫶

heads up bestie: the address you pass in is supposed to come from cpm_muram_addr — that's the documented source, so don't be out here improvising 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/soc/fsl/qe/qe_common.c
• cpm_muram_free(9)
• devm_cpm_muram_alloc(9)
• devm_cpm_muram_alloc_fixed(9)
• cpm_muram_addr(9)

go read the whole friend group, they all hang out in the same file 🔥

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and that's the page!! short, sweet, iconic 👑

this one came from the kernel file ./drivers/soc/fsl/qe, dated October 2026, and it's signed off as cpm_muram_dma(9) — mwah, stan 💜🎀