STRUCT AMDGPU_MUX_CHUNK(9)

💅 NAME

struct amdgpu_mux_chunk — okay so bestie, this is the little struct that saves the location of indirect buffer's package on software rings ✨ lowkey a bookmark for your IB, fr fr.

🌸 SYNOPSIS

struct amdgpu_mux_chunk {
    struct list_head        entry;
    uint32_t sync_seq;
    u64 start;
    u64 end;
    u64 cntl_offset;
    u64 de_offset;
    u64 ce_offset;
 };

🎀 Members

• entry — the list entry. your classic list glue, no notes 💅
• sync_seq — the fence seqno related with the saved IB. like, the receipt that ties this chunk to its fence 🧾
• start — start location on the software ring 🏁
• end — end location on the software ring 🏁
• de_offset — the anchor in write_data for de meta of resubmission ⚓
• ce_offset — the anchor in write_data for ce meta of resubmission ⚓

real talk: cntl_offset is chillin' in the struct up there but this page gives it no one-liner. iconic mystery behavior honestly 🙈 the struct listing is the whole story on that one.

🦋 SEE ALSO

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_ring_mux.h
• struct amdgpu_mux_entry(9)

okay that's the whole page bestie, you ate that 🫶 it lives over at ./drivers/gpu/drm/amd/amdgpu, it's dated October 2026, and it's filed under struct amdgpu_mux_chunk(9) — periodt 💖🔥