lkml.org 
[lkml]   [2014]   [Feb]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] arm64: Add architecture support for PCI
> +#include <linux/init.h>
> +#include <linux/io.h>
> +#include <linux/kernel.h>
> +#include <linux/mm.h>
> +#include <linux/of_pci.h>
> +#include <linux/of_platform.h>
> +#include <linux/slab.h>
> +
> +#include <asm/pci-bridge.h>
> +
> +
> +/*
> + * Return the domain number for this bus
> + */
> +int pci_domain_nr(struct pci_bus *bus)
> +{
> + struct pci_host_bridge *bridge = to_pci_host_bridge(bus->bridge);

Here bus is specific to root bus ? or, what about use find_pci_host_bridge() to get the pci_host_bridge
instead.

> +
> + if (bridge)
> + return bridge->domain_nr;
> +
> + return 0;
> +}
> +
> +int pci_proc_domain(struct pci_bus *bus)
> +{
> + return pci_domain_nr(bus);
> +}
> +
> +/*
> + * Called after each bus is probed, but before its children are examined
> + */
> +void pcibios_fixup_bus(struct pci_bus *bus)
> +{
> + struct pci_dev *dev;
> + struct resource *res;
> + int i;
> +
> + if (bus->self != NULL) {

What about use !pci_is_root_bus() ?

> + pci_read_bridge_bases(bus);
> +
> + pci_bus_for_each_resource(bus, res, i) {
> + if (!res || !res->flags || res->parent)
> + continue;
> +
> + /*
> + * If we are going to reassign everything, we can
> + * shrink the P2P resource to have zero size to
> + * save space
> + */
> + if (pci_has_flag(PCI_REASSIGN_ALL_RSRC)) {
> + res->flags |= IORESOURCE_UNSET;
> + res->start = 0;
> + res->end = -1;
> + continue;
> + }
> + }
> + }
> +



\
 
 \ /
  Last update: 2014-02-18 08:21    [W:0.147 / U:1.244 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site