__flush_dcache_icache(9)

✨ NAME ✨

okay bestie, meet __flush_dcache_icache(9) from the Kernel API Manual — it's giving “flush a particular page from the data cache to RAM” ✨ periodt.

🌸 SYNOPSIS 🌸

the whole signature, bestie:

void __flush_dcache_icache (void *p );

🎀 ARGUMENTS 🎀

• p — the address of the page to flush 🫶

💖 NOTE 💖

heads up, bestie: this is necessary because the instruction cache does not snoop from the data cache. no cap 😭

🦋 SEE ALSO 🦋

• Kernel file ./arch/powerpc/mm/cacheflush.c
• flush_coherent_icache(9)
• invalidate_icache_range(9)
• flush_icache_range(9)
• flush_dcache_icache_phys(9)

cute sign-off: this page is from ./arch/powerpc/mm and dated October 2026 🎀💖