amd_fifo_setup(9)

💖 amd_fifo_setup(9) — Kernel API Manual 🎀

okay bestie, welcome to amd_fifo_setup(9) from the Kernel API Manual. This one is all about setting up that PIO FIFO for ATA/ATAPI, and yes, we’re gonna keep every detail intact. slay ✨

---

🌸 NAME 🌸

amd_fifo_setup — set the PIO FIFO for ATA/ATAPI 💅

---

🦋 SYNOPSIS 🦋

void amd_fifo_setup (struct ata_port *ap );

---

🎀 ARGUMENTS 🎀

• ap — ATA interface. that’s the one and only argument, bestie 🫶

---

✨ DESCRIPTION ✨

Okay so: set the PCI fifo for this device according to the devices present on the bus at this point in time. We need to turn the post write buffer off for ATAPI devices as we may need to issue a word sized write to the device as the final I/O. periodt 💖

---

👑 SEE ALSO 👑

• Kernel file ./drivers/ata/pata_amd.c
• timing_setup(9)
• amd_pre_reset(9)
• amd_cable_detect(9)
• amd33_set_piomode(9)
• amd33_set_dmamode(9)
• nv_pre_reset(9)
• nv100_set_piomode(9)
• nv100_set_dmamode(9)

---

byeee 🫶 this page is from the ./drivers/ata source/version, dated October 2026. mwah 💋✨