STRUCT MC_PRIV(9)

🌸 NAME 🌸

okay so bestie, this is the struct mc_priv(9) page from the Kernel API Manual, and it's literally the DDR memory controller's private instance data 💖 like, that's the whole vibe. no cap.

✨ SYNOPSIS ✨

the full struct is right here, untouched and iconic — do not come for the code, because the code ate:

       struct mc_priv {
           char message[256];
           struct ecc_status stat;
           u32 error_id;
           u32 error_level;
           u32 dwidth;
           u32 part_len;
           u32 regs[REG_MAX];
           u32 adec[ADEC_MAX];
           struct mem_ctl_info *mci[NUM_CONTROLLERS];
           struct rpmsg_endpoint *ept;
           struct cdx_mcdi *mcdi;
        };

🎀 Members 🎀

• message — the buffer for framing the event specific info; it's giving tiny stage for event tea 🎀
• stat — ECC status information, aka all the ECC tea ☕
• error_id — the error id, periodt 👑
• error_level — the error level, no cap 💅
• dwidth — width of the data bus, and ECC bits are literally not invited 🫶
• part_len — the support of the message received — yep, that's the whole description, bestie, no extra lore 🫶
• regs — the registers sent on the rpmsg, slay ✨
• adec — address decode registers, iconic 🌈
• mci — memory controller interface, the mci moment 👑
• ept — rpmsg endpoint, obviously 💅
• mcdi — the mcdi handle, fr fr 🦋

🔥 SEE ALSO 🔥

• Kernel file ./drivers/edac/versalnet_edac.c — union ecc_error_info(9), struct ecc_status(9), convert_to_physical(9), handle_error(9) 💖

mwah 💋 this page is from ./drivers/edac, dated October 2026, and it's for struct mc_priv(9) — periodt, bye bestie! 🫶✨