RENDER COMMAND LIST GENERATION(9)

👑 NAME 👑

Render command list generation — that's the whole vibe of this page, bestie. It lives in the Kernel API Manual, section (9), and yes the header literally reads Render comma...t generation(9) because somebody let the title get truncated mid-word and honestly? iconic. We move.

🎀 DESCRIPTION 🎀

Okay so first thing, context: on the V3D hardware, render command lists are the main character. What they do is load and store tiles of a framebuffer, and on top of that they can optionally call out to binner-generated command lists to do the actual 3D drawing for that tile. That's the whole job. Slay.

Now, in the VC4 driver, render command list generation is performed by the kernel instead of userspace. Not us. The kernel does it. Periodt.

Why? Two very real reasons, no cap:

• Validating a user-submitted command list is hard to get right 😭 and it has high CPU overhead.
• Meanwhile the number of valid configurations for render command lists is actually fairly low — so like, there's barely anything to validate in the first place.

So the kernel just does it, and it eats. 💅

🔍 SEE ALSO 🔍

• Kernel file ./drivers/gpu/drm/vc4/vc4_render_cl.c — go read it, iykyk 🦋

🫶 Friendly reminder that this page is filed under ./drivers/gpu/drm/vc4, dated October 2026, and the footer signs off with Render comma...t generation(9) — same truncated legend, still living rent free in our heads. Go off, little manpage. ✨🌷💜