STRUCT AMD_MDB_PCIE(9)

💖 struct amd_mdb_pcie(9) 💖

okay bestie, welcome to the struct amd_mdb_pcie(9) page from the Kernel API Manual — and no cap, this whole thing is giving PCIe port information. ✨

🌸 NAME 🌸

struct amd_mdb_pcie — PCIe port information. That's the vibe, periodt. 🫶

🎀 SYNOPSIS 🎀

here's the struct in all its exact glory, bestie:

struct amd_mdb_pcie {
    struct dw_pcie                  pci;
    void __iomem                    *slcr;
    struct irq_domain               *intx_domain;
    struct irq_domain               *mdb_domain;
    struct gpio_desc                *perst_gpio;
    int intx_irq;
 };

🧚 Members 🧚

• pci — the DesignWare PCIe controller structure; this is where the PCIe controller situation lives. 💅
• slcr — the MDB System Level Control and Status Register (SLCR) base. iconic register-base energy. 🎀
• intx_domain — pointer to the INTx IRQ domain. IRQ-domain realness. ✨
• mdb_domain — pointer to the MDB IRQ domain. another domain, slay. 💜
• perst_gpio — GPIO descriptor for PERST# signal handling. handling the signal, not the drama. 🦋
• intx_irq — the INTx IRQ interrupt number. a whole number, and it matters. 🔥

🌈 SEE ALSO 🌈

• Kernel file ./drivers/pci/controller/dwc/pcie-amd-mdb.c
• amd_mdb_pcie_intx_map(9)
• amd_mdb_pcie_init_irq_domains(9)

go read those, iykyk 👑

mwah 💋 this little page comes from ./drivers/pci/controller/dwc, dated October 2026, and yes bestie, it's still all about struct amd_mdb_pcie(9) — byeeee 🦋