src/mainboard/emulation/qemu-i440fx/irq_tables.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <arch/pirq_routing.h>
   4
   5 static const struct irq_routing_table intel_irq_routing_table = {
   6         PIRQ_SIGNATURE,  /* u32 signature */
   7         PIRQ_VERSION,    /* u16 version   */
   8         32+16*CONFIG_IRQ_SLOT_COUNT,     /* there can be total CONFIG_IRQ_SLOT_COUNT devices on the bus */
   9         0x00,            /* Where the interrupt router lies (bus) */
  10         (0x01 << 3)|0x0,   /* Where the interrupt router lies (dev) */
  11         0,               /* IRQs devoted exclusively to PCI usage */
  12         0x8086,          /* Vendor */
  13         0x7000,          /* Device */
  14         0,               /* Miniport data */
  15         { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
  16         0x7,         /*  u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
  17         /* clang-format off */
  18         {
  19                 /* bus,       dev|fn,   {link, bitmap}, {link, bitmap}, {link, bitmap}, {link, bitmap},  slot, rfu */
  20                 {0x00,(0x01 << 3)|0x0, {{0x60, 0xdef8}, {0x61, 0xdef8}, {0x62, 0xdef8}, {0x63, 0x0def8}}, 0x0, 0x0},
  21                 {0x00,(0x02 << 3)|0x0, {{0x61, 0xdef8}, {0x62, 0xdef8}, {0x63, 0xdef8}, {0x60, 0x0def8}}, 0x1, 0x0},
  22                 {0x00,(0x03 << 3)|0x0, {{0x62, 0xdef8}, {0x63, 0xdef8}, {0x60, 0xdef8}, {0x61, 0x0def8}}, 0x2, 0x0},
  23                 {0x00,(0x04 << 3)|0x0, {{0x63, 0xdef8}, {0x60, 0xdef8}, {0x61, 0xdef8}, {0x62, 0x0def8}}, 0x3, 0x0},
  24                 {0x00,(0x05 << 3)|0x0, {{0x60, 0xdef8}, {0x61, 0xdef8}, {0x62, 0xdef8}, {0x63, 0x0def8}}, 0x4, 0x0},
  25                 {0x00,(0x06 << 3)|0x0, {{0x61, 0xdef8}, {0x62, 0xdef8}, {0x63, 0xdef8}, {0x60, 0x0def8}}, 0x5, 0x0},
  26         }
  27         /* clang-format on */
  28 };
  29 unsigned long write_pirq_routing_table(unsigned long addr)
  30 {
  31         return copy_pirq_routing_table(addr, &intel_irq_routing_table);
  32 }