__i915_refct_sgt_init(9)

okay so bestie, meet __i915_refct_sgt_init(9) from the Kernel API Manual — she’s here to initialize a refcounted sg-list with a custom operations structure, and yes she ate 💅✨

🌸 NAME 🌸

__i915_refct_sgt_init — initialize a refcounted sg-list with a custom operations structure. That’s the whole vibe: setup, but make it customizable 💖

✨ SYNOPSIS ✨

the signature, untouched and iconic:

       void __i915_refct_sgt_init (struct i915_refct_sgt *rsgt , size_t size ,
              const struct i915_refct_sgt_ops *ops );

🎀 ARGUMENTS 🎀

• rsgt — the struct i915_refct_sgt you’re initializing. main character energy, fr fr.
• size — size in bytes of the underlying memory buffer. numbers matter, bestie 🔢
• ops — a customized operations structure, for when the refcounted sg-list is embedded into another structure. custom fit, no cap 🧚

🦋 SEE ALSO 🦋

the kernel file to check is ./drivers/gpu/drm/i915/i915_scatterlist.h, and the whole squad is:

• __sg_next(9)
• __for_each_sgt_daddr(9)
• __for_each_daddr_next(9)
• for_each_sgt_page(9)
• i915_sg_dma_sizes(9)
• struct i915_refct_sgt_ops(9)
• struct i915_refct_sgt(9)
• i915_refct_sgt_put(9)
• i915_refct_sgt_get(9)

and that’s the page, bestie 🫶 — sourced from ./drivers/gpu/drm/i915, dated October 2026. bye 😘