cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ebsa285-pci.c (1085B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * linux/arch/arm/mach-footbridge/ebsa285-pci.c
      4 *
      5 * PCI bios-type initialisation for PCI machines
      6 *
      7 * Bits taken from various places.
      8 */
      9#include <linux/kernel.h>
     10#include <linux/pci.h>
     11#include <linux/init.h>
     12
     13#include <asm/irq.h>
     14#include <asm/mach/pci.h>
     15#include <asm/mach-types.h>
     16
     17static int irqmap_ebsa285[] = { IRQ_IN3, IRQ_IN1, IRQ_IN0, IRQ_PCI };
     18
     19static int ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
     20{
     21	if (dev->vendor == PCI_VENDOR_ID_CONTAQ &&
     22	    dev->device == PCI_DEVICE_ID_CONTAQ_82C693)
     23		switch (PCI_FUNC(dev->devfn)) {
     24		case 1:	return 14;
     25		case 2:	return 15;
     26		case 3:	return 12;
     27		}
     28
     29	return irqmap_ebsa285[(slot + pin) & 3];
     30}
     31
     32static struct hw_pci ebsa285_pci __initdata = {
     33	.map_irq		= ebsa285_map_irq,
     34	.nr_controllers		= 1,
     35	.ops			= &dc21285_ops,
     36	.setup			= dc21285_setup,
     37	.preinit		= dc21285_preinit,
     38	.postinit		= dc21285_postinit,
     39};
     40
     41static int __init ebsa285_init_pci(void)
     42{
     43	if (machine_is_ebsa285())
     44		pci_common_init(&ebsa285_pci);
     45	return 0;
     46}
     47
     48subsys_initcall(ebsa285_init_pci);