STRUCT DPU_VBIF_CFG(9)

💅 struct dpu_vbif_cfg(9) — Kernel API Manual 💅

💖 NAME 💖

struct dpu_vbif_cfg — information of VBIF blocks

✨ SYNOPSIS ✨

okay so here's the exact struct shape, bestie — no cap, keep it literal:

struct dpu_vbif_cfg {
    u32 len;
    unsigned long features;
    u32 default_ot_rd_limit;
    u32 default_ot_wr_limit;
    u32 xin_halt_timeout;
    u32 qos_rp_remap_size;
    struct dpu_vbif_dynamic_ot_tbl dynamic_ot_rd_tbl;
    struct dpu_vbif_dynamic_ot_tbl dynamic_ot_wr_tbl;
    struct dpu_vbif_qos_tbl qos_rt_tbl;
    struct dpu_vbif_qos_tbl qos_nrt_tbl;
    u32 memtype_count;
    u32 memtype[MAX_XIN_COUNT];
};

🎀 Members 🎀

okay so this is the field-by-field vibe check. Every member, no skipping, periodt:

• len — length of hardware block.
• features — bit mask identifying sub-blocks/features.
• default_ot_rd_limit — default OT read limit. (the wrapped Members text also shows ot_rd_limit for this one, so don't let the line break gaslight you 💀)
• default_ot_wr_limit — default OT write limit. (same situation: ot_wr_limit shows up in the wrap, but the struct field is default_ot_wr_limit)
• xin_halt_timeout — maximum time (in usec) for xin to halt.
• qos_rp_remap_size — size of VBIF_XINL_QOS_RP_REMAP register space.
• dynamic_ot_rd_tbl — dynamic OT read configuration table.
• dynamic_ot_wr_tbl — dynamic OT write configuration table.
• qos_rt_tbl — real-time QoS priority table.
• qos_nrt_tbl — non-real-time QoS priority table.
• memtype_count — number of defined memtypes.
• memtype — array of xin memtype definitions. (in the struct it's literally u32 memtype[MAX_XIN_COUNT];)

🌈 SEE ALSO 🌈

the Kernel file is ./drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h, and the linked crew is lowkey iconic — fr fr:

• struct dpu_scaler_blk(9)
• struct dpu_pp_blk(9)
• struct dpu_dsc_blk(9)
• struct dpu_sspp_v13_rec_blk(9)
• enum dpu_qos_lut_usage(9)
• struct dpu_qos_lut_entry(9)
• struct dpu_qos_lut_tbl(9)
• struct dpu_rotation_cfg(9)
• struct dpu_caps(9)
• struct dpu_sspp_sub_blks(9)
• struct dpu_lm_sub_blks(9)
• struct dpu_dspp_sub_blks(9)
• struct dpu_dsc_sub_blks(9)
• struct dpu_sspp_cfg(9)
• struct dpu_lm_cfg(9)
• struct dpu_dspp_cfg(9)
• struct dpu_pingpong_cfg(9)
• struct dpu_merge_3d_cfg(9)
• struct dpu_dsc_cfg(9)
• struct dpu_intf_cfg(9)
• struct dpu_wb_cfg(9)
• struct dpu_vbif_dynamic_ot_cfg(9)
• struct dpu_vbif_dynamic_ot_tbl(9)
• struct dpu_vbif_qos_tbl(9)
• struct dpu_cdm_cfg(9)
• struct dpu_perf_cdp_cfg(9)
• struct dpu_mdss_version(9)
• struct dpu_perf_cfg(9)
• struct dpu_mdss_cfg(9)

xoxo, this page came from ./drivers/gpu/drm/msm/disp/dpu1, dated October 2026, and it's serving struct dpu_vbif_cfg(9) main character energy — slay 💅✨🦋