Dear Morgan,
please check the patch below to make LinuxBIOSv2/src/mainboard/gigabyte/ga_2761gxdk/mptable.c interrupt routing code easier to understand.
If it is possible, lspci -nnvv of the board would be great to improve documentation.
Regards, Carl-Daniel
Use macros to improve readability of the device-to-pin IRQ assignments in GA-2761GXDK mptables.c. Thanks to Torsten Duwe for initial code.
Signed-off-by: Carl-Daniel Hailfinger c-d.hailfinger.devel.2006@gmx.net
Index: LinuxBIOSv2-smpwriteintsrc/src/mainboard/gigabyte/ga_2761gxdk/mptable.c =================================================================== --- LinuxBIOSv2-smpwriteintsrc/src/mainboard/gigabyte/ga_2761gxdk/mptable.c (Revision 3036) +++ LinuxBIOSv2-smpwriteintsrc/src/mainboard/gigabyte/ga_2761gxdk/mptable.c (Arbeitskopie) @@ -100,44 +100,52 @@ } }
-/*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_HIGH, bus_isa, 0x0, apicid_sis966, 0x0); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x1, apicid_sis966, 0x1); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x0, apicid_sis966, 0x2); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x3, apicid_sis966, 0x3); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x4, apicid_sis966, 0x4); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x6, apicid_sis966, 0x6); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x7, apicid_sis966, 0x7); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0x8, apicid_sis966, 0x8); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0xc, apicid_sis966, 0xc); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0xd, apicid_sis966, 0xd); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0xe, apicid_sis966, 0xe); - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0xf, apicid_sis966, 0xf); + /* 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_HIGH, bus_isa, 0x0, apicid_sis966, 0x0);
- smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[0], ((sbdn+1)<<2)|1, apicid_sis966, 0xa); +/* ISA ints are edge-triggered, and usually originate from the ISA bus, + * or its remainings. + */ +#define ISA_INT(intr, pin)\ + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, (intr), apicid_sis966,(pin))
- smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[0], ((sbdn+2)<<2)|0, apicid_sis966, 0x16); // 22 + ISA_INT(0x1, 0x1); + ISA_INT(0x0, 0x2); + ISA_INT(0x3, 0x3); + ISA_INT(0x4, 0x4); + ISA_INT(0x6, 0x6); + ISA_INT(0x7, 0x7); + ISA_INT(0x8, 0x8); + ISA_INT(0xc, 0xc); + ISA_INT(0xd, 0xd); + ISA_INT(0xe, 0xe); + ISA_INT(0xf, 0xf);
- smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[0], ((sbdn+2)<<2)|1, apicid_sis966, 0x17); // 23 +/* PCI interrupts are level triggered, and are + * associated with a specific bus/device/function tuple. + */ +#define PCI_INT(bus, dev, fn, pin) \ + smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[bus], (((dev)<<2)|(fn)), apicid_sis966, (pin))
- smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[0], ((sbdn+6)<<2)|1, apicid_sis966, 0x17); // 23 + PCI_INT(0, sbdn+1, 1, 0xa); + PCI_INT(0, sbdn+2, 0, 0x16); // 22 + PCI_INT(0, sbdn+2, 1, 0x17); // 23 + PCI_INT(0, sbdn+6, 1, 0x17); // 23 + PCI_INT(0, sbdn+5, 0, 0x14); // 20 + PCI_INT(0, sbdn+5, 1, 0x17); // 23 + PCI_INT(0, sbdn+5, 2, 0x15); // 21 + PCI_INT(0, sbdn+8, 0, 0x16); // 22
- smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[0], ((sbdn+5)<<2)|0, apicid_sis966, 0x14); // 20 - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[0], ((sbdn+5)<<2)|1, apicid_sis966, 0x17); // 23 - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[0], ((sbdn+5)<<2)|2, apicid_sis966, 0x15); // 21 - - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[0], ((sbdn+8)<<2)|0, apicid_sis966, 0x16); // 22 - for(j=7; j>=2; j--) { if(!bus_sis966[j]) continue; for(i=0;i<4;i++) { - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[j], (0x00<<2)|i, apicid_sis966, 0x10 + (2+j+i+4-sbdn%4)%4); + PCI_INT(j, 0x00, i, 0x10 + (2+j+i+4-sbdn%4)%4); } }
for(j=0; j<2; j++) for(i=0;i<4;i++) { - smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_sis966[1], ((0x06+j)<<2)|i, apicid_sis966, 0x10 + (2+i+j)%4); + PCI_INT(1, 0x06+j, i, 0x10 + (2+i+j)%4); }
/*Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#*/