/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include static void *smp_write_config_table(void *v) { struct mp_config_table *mc; struct device *riser = NULL, *firewire = NULL; int firewire_bus = 0, riser_bus = 0, isa_bus; mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN); mptable_init(mc); smp_write_processors(mc); firewire = dev_find_device(0x104c, 0x8023, 0); if (firewire) { firewire_bus = firewire->upstream->secondary; printk(BIOS_SPEW, "Firewire device is on bus %x\n", firewire_bus); } // If a riser card is used, this riser is detected on bus 4, so its secondary bus is the // highest bus number on the pci bus. riser = dev_find_device(0x3388, 0x0021, 0); if (!riser) riser = dev_find_device(0x3388, 0x0022, 0); if (riser) { riser_bus = riser->downstream->secondary; printk(BIOS_SPEW, "Riser bus is %x\n", riser_bus); } mptable_write_buses(mc, NULL, &isa_bus); /* I/O APICs: APIC ID Version State Address */ u8 ioapic_id = smp_write_ioapic_from_hw(mc, VIO_APIC_VADDR); /* Legacy Interrupts */ /* I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# */ smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x0, ioapic_id, 0x0); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x1, ioapic_id, 0x1); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x0, ioapic_id, 0x2); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x3, ioapic_id, 0x3); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x4, ioapic_id, 0x4); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, isa_bus, 0x8, ioapic_id, 0x8); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0x9, ioapic_id, 0x9); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xa, ioapic_id, 0xa); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xb, ioapic_id, 0xb); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xc, ioapic_id, 0xc); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xd, ioapic_id, 0xd); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xe, ioapic_id, 0xe); smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT, isa_bus, 0xf, ioapic_id, 0xf); /* Builtin devices on Bus 0 */ smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x01, 0, ioapic_id, 0x10); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x02, 0, ioapic_id, 0x10); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1f, 1, ioapic_id, 0x13); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1d, 0, ioapic_id, 0x17); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1d, 1, ioapic_id, 0x13); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1d, 2, ioapic_id, 0x12); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1d, 3, ioapic_id, 0x10); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1b, 0, ioapic_id, 0x10); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1c, 0, ioapic_id, 0x10); smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1c, 1, ioapic_id, 0x11); /* Internal PCI bus (Firewire, PCI slot) */ if (firewire) { smp_write_pci_intsrc(mc, mp_INT, firewire_bus, 0x00, 0, ioapic_id, 0x10); smp_write_pci_intsrc(mc, mp_INT, firewire_bus, 0x01, 0, ioapic_id, 0x14); } if (riser) { /* Old riser card */ // riser slot top 5:8.0 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x08, 0, ioapic_id, 0x14); // riser slot middle 5:9.0 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x09, 0, ioapic_id, 0x15); // riser slot bottom 5:a.0 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x0a, 0, ioapic_id, 0x16); /* New Riser Card */ smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x0c, 0, ioapic_id, 0x14); smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x0d, 0, ioapic_id, 0x15); smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x0e, 0, ioapic_id, 0x16); } /* PCIe slot */ smp_write_pci_intsrc(mc, mp_INT, 0x1, 0x00, 0, ioapic_id, 0x10); smp_write_pci_intsrc(mc, mp_INT, 0x1, 0x00, 1, ioapic_id, 0x11); /* Onboard Ethernet */ smp_write_pci_intsrc(mc, mp_INT, 0x2, 0x00, 0, ioapic_id, 0x10); /* Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN# */ mptable_lintsrc(mc, isa_bus); /* Compute the checksums */ return mptable_finalize(mc); } unsigned long write_smp_table(unsigned long addr) { void *v; v = smp_write_floating_table(addr, 1); return (unsigned long)smp_write_config_table(v); }