xe_gt_mcr_unicast_read(9)

💖 NAME 💖

xe_gt_mcr_unicast_read — okay so this one reads a specific instance of an MCR register, bestie 💅

(yes this is from the Kernel API Manual, we're in kernel-land now, act natural ✨)

---

✨ SYNOPSIS ✨

u32 xe_gt_mcr_unicast_read (struct xe_gt *gt , struct xe_reg_mcr reg_mcr , int group , int instance );

Like… it's a u32, it comes back out, and it takes four things. That's the whole vibe check 🫶

---

🎀 ARGUMENTS 🎀

• gt — the GT structure, literally the main character of this whole operation 👑
• reg_mcr — the MCR register you wanna read, no cap 🎯
• group — the MCR group 🌸
• instance — the MCR instance 🦋

---

🦋 DESCRIPTION 🦋

So what it does is: it steers toward a specific group/instance first, and then it hands you back the value it read from that MCR register 💖

Steer first. Read second. Slay forever. Periodt 🔥

---

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_gt_mcr.c — GT Multicast/Replicated (MCR) Register Support(9)
• xe_gt_mcr_get_dss_steering(9)
• xe_gt_mcr_init_early(9)
• xe_gt_mcr_init(9)
• xe_gt_mcr_set_implicit_defaults(9)
• xe_gt_mcr_unicast_read_any(9)
• xe_gt_mcr_unicast_write(9)
• xe_gt_mcr_multicast_write(9)

The whole friend group fr fr, go say hi 💜

---

ngl the official paperwork on this one lives in ./drivers/gpu/drm/xe, stamped October 2026, and it's filed under xe_gt_mcr_unicast_read(9) — that's the whole sign-off bestie, mwah 🎀💋✨