irq_tables.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <arch/pirq_routing.h>
 
static const struct irq_routing_table intel_irq_routing_table = {
        PIRQ_SIGNATURE,  /* u32 signature */
        PIRQ_VERSION,    /* u16 version   */
        32+16*CONFIG_IRQ_SLOT_COUNT,     /* there can be total CONFIG_IRQ_SLOT_COUNT devices on the bus */
        0x00,            /* Where the interrupt router lies (bus) */
        (0x01 << 3)|0x0,   /* Where the interrupt router lies (dev) */
        0,               /* IRQs devoted exclusively to PCI usage */
        0x8086,          /* Vendor */
        0x7000,          /* Device */
        0,               /* Miniport data */
        { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
        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) */
        /* clang-format off */
        {
                /* bus,       dev|fn,   {link, bitmap}, {link, bitmap}, {link, bitmap}, {link, bitmap},  slot, rfu */
                {0x00,(0x01 << 3)|0x0, {{0x60, 0xdef8}, {0x61, 0xdef8}, {0x62, 0xdef8}, {0x63, 0x0def8}}, 0x0, 0x0},
                {0x00,(0x02 << 3)|0x0, {{0x61, 0xdef8}, {0x62, 0xdef8}, {0x63, 0xdef8}, {0x60, 0x0def8}}, 0x1, 0x0},
                {0x00,(0x03 << 3)|0x0, {{0x62, 0xdef8}, {0x63, 0xdef8}, {0x60, 0xdef8}, {0x61, 0x0def8}}, 0x2, 0x0},
                {0x00,(0x04 << 3)|0x0, {{0x63, 0xdef8}, {0x60, 0xdef8}, {0x61, 0xdef8}, {0x62, 0x0def8}}, 0x3, 0x0},
                {0x00,(0x05 << 3)|0x0, {{0x60, 0xdef8}, {0x61, 0xdef8}, {0x62, 0xdef8}, {0x63, 0x0def8}}, 0x4, 0x0},
                {0x00,(0x06 << 3)|0x0, {{0x61, 0xdef8}, {0x62, 0xdef8}, {0x63, 0xdef8}, {0x60, 0x0def8}}, 0x5, 0x0},
        }
        /* clang-format on */
};
unsigned long write_pirq_routing_table(unsigned long addr)
{
        return copy_pirq_routing_table(addr, &intel_irq_routing_table);
}