STRUCT CPPI5_TR_TYPE2_T(9)

✨ struct cppi5_tr_type2_t(9) ✨

okay bestie, buckle up 💖 this is a page straight out of the Kernel API Manual and it's all about struct cppi5_tr_type2_t — which is, and I quote, a Type 2 (Three dimensional data move) TR (32 byte). yes. three whole dimensions. 32 whole bytes. she's giving main character energy and honestly? she ate. 🎀

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🌸 NAME 🌸

struct cppi5_tr_type2_t — the Type 2 (Three dimensional data move) TR (32 byte). that's the whole vibe. that's her. 💅

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🦋 SYNOPSIS 🦋

struct cppi5_tr_type2_t {
    cppi5_tr_flags_t flags;
    u16 icnt0;
    u16 icnt1;
    u64 addr;
    s32 dim1;
    u16 icnt2;
    u16 _reserved;
    s32 dim2;
 };

like, look at that little layout. so cozy. so structured. 32 bytes of pure purpose ✨

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💜 Members 💜

okay so meeting the whole squad, one by one 🫶

• flags — the TR flags, aka the full personality package: type, triggers, event, configuration. she contains multitudes. 👑
• icnt0 — total loop iteration count for level 0 (innermost). the baby of the loop family, the innermost one, iykyk. 🍓
• icnt1 — total loop iteration count for level 1. moving on up, queen. 🌸
• addr — starting address for the source data or destination data. where the data actually lives. literally the address, bestie. 🏠
• dim1 — signed dimension for loop level 1. signed! so she can go negative, no cap. 💀
• icnt2 — total loop iteration count for level 2. the outermost loop, the big sister, the one in charge. 💅
• _reserved — not used. she's just there. sitting. vibing. do not perceive her 🙈
• dim2 — signed dimension for loop level 2. also signed. also spicy. 🔥

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⭐ SEE ALSO ⭐

okay so the kernel file lives at ./include/linux/dma/ti-cppi5.h and honestly the whole friend group is listed here so let's do a roll call, bestie, because everyone's invited to the group chat 🫶💖

• struct cppi5_desc_hdr_t(9)
• struct cppi5_host_desc_t(9)
• struct cppi5_desc_epib_t(9)
• struct cppi5_monolithic_desc_t(9)
• cppi5_desc_is_tdcm(9)
• cppi5_desc_get_type(9)
• cppi5_desc_get_errflags(9)
• cppi5_desc_get_pktids(9)
• cppi5_desc_set_pktids(9)
• cppi5_desc_set_retpolicy(9)
• cppi5_desc_get_tags_ids(9)
• cppi5_desc_set_tags_ids(9)
• cppi5_hdesc_calc_size(9)
• cppi5_hdesc_init(9)
• cppi5_hdesc_update_flags(9)
• cppi5_hdesc_update_psdata_size(9)
• cppi5_hdesc_get_psdata_size(9)
• cppi5_hdesc_get_pktlen(9)
• cppi5_hdesc_set_pktlen(9)
• cppi5_hdesc_get_psflags(9)
• cppi5_hdesc_set_psflags(9)
• cppi5_hdesc_get_pkttype(9)
• cppi5_hdesc_set_pkttype(9)
• cppi5_hdesc_attach_buf(9)
• cppi5_hdesc_link_hbdesc(9)
• cppi5_hdesc_epib_present(9)
• cppi5_hdesc_get_psdata(9)
• cppi5_hdesc_get_swdata(9)
• enum cppi5_tr_types(9)
• enum cppi5_tr_event_size(9)
• enum cppi5_tr_trigger(9)
• enum cppi5_tr_trigger_type(9)
• struct cppi5_tr_type0_t(9)
• struct cppi5_tr_type1_t(9)
• struct cppi5_tr_type3_t(9)
• struct cppi5_tr_type15_t(9)
• struct cppi5_tr_resp_t(9)
• enum cppi5_tr_resp_status_type(9)
• enum cppi5_tr_resp_status_submission(9)
• enum cppi5_tr_resp_status_unsupported(9)
• cppi5_trdesc_calc_size(9)
• cppi5_trdesc_init(9)
• cppi5_tr_init(9)
• cppi5_tr_set_trigger(9)
• cppi5_tr_csf_set(9)

like okay that's a LOT of friends but every single one of them matters, periodt. 💅✨

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and that's the whole page bestie!! 🌈 this little gem came from ./include/linux/dma and it's dated October 2026, so yeah — go forth, read your type 2 TRs, and slay 🦋💖✨