STRUCT TTM_OPERATION_CTX(9)

💅 struct ttm_operation_ctx(9)

okay so bestie, welcome to the Kernel API Manual page for struct ttm_operation_ctx. it’s short, it’s useful, and it’s lowkey the little context gremlin behind TTM operations. 💅✨

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🌸 NAME 🌸

struct ttm_operation_ctx —

that’s the whole name line: just the struct name and a dash. minimal, mysterious, iconic. 🎀

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✨ SYNOPSIS ✨

here’s the entire struct, character-for-character, no edits, no cap:

struct ttm_operation_ctx {
    bool interruptible;
    bool no_wait_gpu;
    bool gfp_retry_mayfail;
    bool allow_res_evict;
    struct dma_resv *resv;
    uint64_t bytes_moved;
};

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👑 Members 👑

every member, bestie — nothing skipped:

• interruptible — sleep interruptible if sleeping. that’s it; interruptible sleep, periodt. 🦋
• no_wait_gpu — return immediately if the GPU is busy. no waiting around, we bounce. 💨
• gfp_retry_mayfail — when allocating pages, use __GFP_RETRY_MAYFAIL | __GFP_NOWARN. the reason? to avoid invoking the OOM killer when populating a buffer object, so the error can be forwarded for it to be dealt with. 😭🔥
• allow_res_evict — allow eviction of reserved BOs. can be used when multiple BOs share the same reservation object resv. 💅
• resv — reservation object to be used together with allow_res_evict. they go together, iykyk. 🎀
• bytes_moved — statistics on how many bytes have been moved. literally the bytes-moved counter. ⭐

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🌈 Description 🌈

this is the context for TTM operations like changing buffer placement or general memory allocation. it’s giving “I hold the operation context so you don’t have to.” ✨

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🔥 SEE ALSO 🔥

go read these too, bestie — the whole little TTM cinematic universe:

• Kernel file ./include/drm/ttm/ttm_bo.h
• enum ttm_bo_type(9)
• struct ttm_buffer_object(9)
• struct ttm_bo_kmap_obj(9)
• struct ttm_lru_walk_arg(9)
• struct ttm_lru_walk(9)
• struct ttm_bo_shrink_flags(9)
• ttm_bo_reserve(9)
• ttm_bo_reserve_slowpath(9)
• ttm_bo_move_null(9)
• ttm_bo_unreserve(9)
• ttm_kmap_obj_virtual(9)
• struct ttm_bo_lru_cursor(9)
• ttm_bo_lru_for_each_reserved_guarded(9)

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source/version: ./include/drm/ttm · date: October 2026 · manual page: struct ttm_operation_ctx(9) — bye bestie, go move some bytes! 💖🦋