of_dma_is_coherent(9)

🦋 of_dma_is_coherent(9) 🦋

okay bestie, you're in the Kernel API Manual and this page is literally all about of_dma_is_coherent(9). It's giving tiny coherence vibe check, no cap. ✨💅✨

🌸 NAME 🌸

of_dma_is_coherent — check if device is coherent ✨

🎀 SYNOPSIS 🎀

bool of_dma_is_coherent (struct device_node *np );

🫶 ARGUMENTS 🫶

• np — device node. That's the one and only argument, bestie. 👑

🔥 DESCRIPTION 🔥

okay so here's the tea: it returns true if the "dma-coherent" property was found for this device in the DT, or if DMA is coherent by default for OF devices on the current platform and no "dma-noncoherent" property was found for this device. Periodt. 💖

🌈 SEE ALSO 🌈

• Kernel file ./drivers/of/address.c
• of_translate_dma_region(9)
• of_property_read_reg(9)
• of_dma_get_range(9)
• of_dma_get_max_cpu_address(9)
• of_mmio_is_nonposted(9)
• of_address_to_resource(9)
• of_iomap(9)

and that's the whole page, bestie 🫶 the source/version line is ./drivers/of, the date is October 2026, and the manual page is of_dma_is_coherent(9). slay 💅✨