Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
powerpc: Remove PPC_OF_PLATFORM_PCI
The Cell blade support was the last user of PPC_OF_PLATFORM_PCI, so
remove it.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20241218105523.416573-8-mpe@ellerman.id.au
authored by
Michael Ellerman
and committed by
Madhavan Srinivasan
f026dffd
bd4a8342
+1
-108
-5
arch/powerpc/Kconfig
-5
arch/powerpc/Kconfig
···
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PCI domain dependent and each PCI controller on own domain can have
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256 PCI buses, like it is on other Linux architectures.
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config PPC_OF_PLATFORM_PCI
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bool
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depends on PCI
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depends on PPC64 # not supported on 32 bits yet
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-
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config ARCH_SUPPORTS_UPROBES
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def_bool y
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+1
-1
arch/powerpc/kernel/Makefile
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arch/powerpc/kernel/Makefile
···
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signal.o sysfs.o cacheinfo.o time.o \
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prom.o traps.o setup-common.o \
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udbg.o misc.o io.o misc_$(BITS).o \
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of_platform.o prom_parse.o firmware.o \
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prom_parse.o firmware.o \
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hw_breakpoint_constraints.o interrupt.o \
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kdebugfs.o stacktrace.o syscall.o
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obj-y += ptrace/
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arch/powerpc/kernel/of_platform.c
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arch/powerpc/kernel/of_platform.c
···
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
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* <benh@kernel.crashing.org>
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* and Arnd Bergmann, IBM Corp.
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*/
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#undef DEBUG
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#include <linux/string.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/export.h>
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#include <linux/mod_devicetable.h>
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#include <linux/pci.h>
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#include <linux/platform_device.h>
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#include <linux/atomic.h>
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#include <asm/errno.h>
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#include <asm/topology.h>
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#include <asm/pci-bridge.h>
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#include <asm/ppc-pci.h>
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#include <asm/eeh.h>
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#ifdef CONFIG_PPC_OF_PLATFORM_PCI
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-
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/* The probing of PCI controllers from of_platform is currently
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* 64 bits only, mostly due to gratuitous differences between
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* the 32 and 64 bits PCI code on PowerPC and the 32 bits one
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* lacking some bits needed here.
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*/
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static int of_pci_phb_probe(struct platform_device *dev)
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{
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struct pci_controller *phb;
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/* Check if we can do that ... */
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if (ppc_md.pci_setup_phb == NULL)
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return -ENODEV;
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pr_info("Setting up PCI bus %pOF\n", dev->dev.of_node);
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/* Alloc and setup PHB data structure */
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phb = pcibios_alloc_controller(dev->dev.of_node);
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if (!phb)
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return -ENODEV;
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/* Setup parent in sysfs */
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phb->parent = &dev->dev;
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/* Setup the PHB using arch provided callback */
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if (ppc_md.pci_setup_phb(phb)) {
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pcibios_free_controller(phb);
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return -ENODEV;
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}
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/* Process "ranges" property */
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pci_process_bridge_OF_ranges(phb, dev->dev.of_node, 0);
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/* Init pci_dn data structures */
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pci_devs_phb_init_dynamic(phb);
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/* Create EEH PE for the PHB */
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eeh_phb_pe_create(phb);
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/* Scan the bus */
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pcibios_scan_phb(phb);
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if (phb->bus == NULL)
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return -ENXIO;
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/* Claim resources. This might need some rework as well depending
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* whether we are doing probe-only or not, like assigning unassigned
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* resources etc...
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*/
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pcibios_claim_one_bus(phb->bus);
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/* Add probed PCI devices to the device model */
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pci_bus_add_devices(phb->bus);
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return 0;
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}
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static const struct of_device_id of_pci_phb_ids[] = {
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{ .type = "pci", },
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{ .type = "pcix", },
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{ .type = "pcie", },
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{ .type = "pciex", },
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{ .type = "ht", },
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{}
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};
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static struct platform_driver of_pci_phb_driver = {
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.probe = of_pci_phb_probe,
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.driver = {
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.name = "of-pci",
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.of_match_table = of_pci_phb_ids,
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},
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};
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builtin_platform_driver(of_pci_phb_driver);
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#endif /* CONFIG_PPC_OF_PLATFORM_PCI */