mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-17 05:17:45 +07:00
b7c670d673
Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring <robh@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Anatolij Gustschin <agust@denx.de> Cc: Scott Wood <oss@buserror.net> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linuxppc-dev@lists.ozlabs.org Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
|
|
* Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
|
|
* <benh@kernel.crashing.org>
|
|
* and Arnd Bergmann, IBM Corp.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*
|
|
*/
|
|
|
|
#undef DEBUG
|
|
|
|
#include <linux/string.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/export.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/of_platform.h>
|
|
#include <linux/atomic.h>
|
|
|
|
#include <asm/errno.h>
|
|
#include <asm/topology.h>
|
|
#include <asm/pci-bridge.h>
|
|
#include <asm/ppc-pci.h>
|
|
#include <asm/eeh.h>
|
|
|
|
#ifdef CONFIG_PPC_OF_PLATFORM_PCI
|
|
|
|
/* The probing of PCI controllers from of_platform is currently
|
|
* 64 bits only, mostly due to gratuitous differences between
|
|
* the 32 and 64 bits PCI code on PowerPC and the 32 bits one
|
|
* lacking some bits needed here.
|
|
*/
|
|
|
|
static int of_pci_phb_probe(struct platform_device *dev)
|
|
{
|
|
struct pci_controller *phb;
|
|
|
|
/* Check if we can do that ... */
|
|
if (ppc_md.pci_setup_phb == NULL)
|
|
return -ENODEV;
|
|
|
|
pr_info("Setting up PCI bus %pOF\n", dev->dev.of_node);
|
|
|
|
/* Alloc and setup PHB data structure */
|
|
phb = pcibios_alloc_controller(dev->dev.of_node);
|
|
if (!phb)
|
|
return -ENODEV;
|
|
|
|
/* Setup parent in sysfs */
|
|
phb->parent = &dev->dev;
|
|
|
|
/* Setup the PHB using arch provided callback */
|
|
if (ppc_md.pci_setup_phb(phb)) {
|
|
pcibios_free_controller(phb);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Process "ranges" property */
|
|
pci_process_bridge_OF_ranges(phb, dev->dev.of_node, 0);
|
|
|
|
/* Init pci_dn data structures */
|
|
pci_devs_phb_init_dynamic(phb);
|
|
|
|
/* Create EEH devices for the PHB */
|
|
eeh_dev_phb_init_dynamic(phb);
|
|
|
|
/* Register devices with EEH */
|
|
if (dev->dev.of_node->child)
|
|
eeh_add_device_tree_early(PCI_DN(dev->dev.of_node));
|
|
|
|
/* Scan the bus */
|
|
pcibios_scan_phb(phb);
|
|
if (phb->bus == NULL)
|
|
return -ENXIO;
|
|
|
|
/* Claim resources. This might need some rework as well depending
|
|
* whether we are doing probe-only or not, like assigning unassigned
|
|
* resources etc...
|
|
*/
|
|
pcibios_claim_one_bus(phb->bus);
|
|
|
|
/* Finish EEH setup */
|
|
eeh_add_device_tree_late(phb->bus);
|
|
|
|
/* Add probed PCI devices to the device model */
|
|
pci_bus_add_devices(phb->bus);
|
|
|
|
/* sysfs files should only be added after devices are added */
|
|
eeh_add_sysfs_files(phb->bus);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id of_pci_phb_ids[] = {
|
|
{ .type = "pci", },
|
|
{ .type = "pcix", },
|
|
{ .type = "pcie", },
|
|
{ .type = "pciex", },
|
|
{ .type = "ht", },
|
|
{}
|
|
};
|
|
|
|
static struct platform_driver of_pci_phb_driver = {
|
|
.probe = of_pci_phb_probe,
|
|
.driver = {
|
|
.name = "of-pci",
|
|
.of_match_table = of_pci_phb_ids,
|
|
},
|
|
};
|
|
|
|
builtin_platform_driver(of_pci_phb_driver);
|
|
|
|
#endif /* CONFIG_PPC_OF_PLATFORM_PCI */
|