forked from luck/tmp_suning_uos_patched
[POWERPC] Use global_number in ppc32 pci_controller
Make the pci_controller struct use global_number for the PHB domain number instead of index to match what ppc64 does and reuse its pci_domain_nr code. Introduced a pci-common.c to handle shared code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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parent
6a506238b3
commit
5516b540e9
arch/powerpc
include/asm-powerpc
@ -68,7 +68,7 @@ obj-$(CONFIG_MODULES) += $(module-y)
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pci64-$(CONFIG_PPC64) += pci_64.o pci_dn.o isa-bridge.o
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pci32-$(CONFIG_PPC32) := pci_32.o
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obj-$(CONFIG_PCI) += $(pci64-y) $(pci32-y)
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obj-$(CONFIG_PCI) += $(pci64-y) $(pci32-y) pci-common.o
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obj-$(CONFIG_PCI_MSI) += msi.o
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kexec-$(CONFIG_PPC64) := machine_kexec_64.o
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kexec-$(CONFIG_PPC32) := machine_kexec_32.o
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53
arch/powerpc/kernel/pci-common.c
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53
arch/powerpc/kernel/pci-common.c
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@ -0,0 +1,53 @@
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/*
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* Contains common pci routines for ALL ppc platform
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#undef DEBUG
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#include <linux/kernel.h>
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#include <linux/pci.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/bootmem.h>
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#include <linux/mm.h>
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#include <linux/list.h>
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#include <linux/syscalls.h>
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#include <linux/irq.h>
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#include <linux/vmalloc.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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#include <asm/prom.h>
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#include <asm/pci-bridge.h>
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#include <asm/byteorder.h>
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#include <asm/machdep.h>
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#include <asm/ppc-pci.h>
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#include <asm/firmware.h>
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#ifdef DEBUG
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#include <asm/udbg.h>
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#define DBG(fmt...) printk(fmt)
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#else
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#define DBG(fmt...)
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#endif
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/*
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* Return the domain number for this bus.
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*/
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int pci_domain_nr(struct pci_bus *bus)
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{
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if (firmware_has_feature(FW_FEATURE_ISERIES))
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return 0;
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else {
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struct pci_controller *hose = pci_bus_to_host(bus);
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return hose->global_number;
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}
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}
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EXPORT_SYMBOL(pci_domain_nr);
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@ -620,7 +620,7 @@ pcibios_alloc_controller(void)
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*hose_tail = hose;
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hose_tail = &hose->next;
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hose->index = next_controller_index++;
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hose->global_number = next_controller_index++;
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return hose;
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}
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@ -1336,7 +1336,7 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
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if (!res->flags) {
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if (io_offset)
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printk(KERN_ERR "I/O resource not set for host"
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" bridge %d\n", hose->index);
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" bridge %d\n", hose->global_number);
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res->start = 0;
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res->end = IO_SPACE_LIMIT;
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res->flags = IORESOURCE_IO;
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@ -1350,7 +1350,7 @@ void __init pcibios_fixup_bus(struct pci_bus *bus)
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if (i > 0)
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continue;
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printk(KERN_ERR "Memory resource not set for "
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"host bridge %d\n", hose->index);
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"host bridge %d\n", hose->global_number);
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res->start = hose->pci_mem_offset;
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res->end = ~0U;
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res->flags = IORESOURCE_MEM;
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@ -636,22 +636,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
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return 0;
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}
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/*
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* Return the domain number for this bus.
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*/
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int pci_domain_nr(struct pci_bus *bus)
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{
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if (firmware_has_feature(FW_FEATURE_ISERIES))
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return 0;
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else {
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struct pci_controller *hose = pci_bus_to_host(bus);
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return hose->global_number;
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}
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}
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EXPORT_SYMBOL(pci_domain_nr);
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/* Decide whether to display the domain number in /proc */
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int pci_proc_domain(struct pci_bus *bus)
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{
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@ -54,7 +54,7 @@ static int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
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struct pci_controller *hose = bus->sysdata;
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unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
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| (((bus->number - hose->first_busno) & 0xff) << 16)
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| (hose->index << 24);
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| (hose->global_number << 24);
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int ret = -1;
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int rval;
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@ -69,7 +69,7 @@ static int rtas_write_config(struct pci_bus *bus, unsigned int devfn,
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struct pci_controller *hose = bus->sysdata;
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unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
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| (((bus->number - hose->first_busno) & 0xff) << 16)
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| (hose->index << 24);
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| (hose->global_number << 24);
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int rval;
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rval = rtas_call(rtas_token("write-pci-config"), 3, 1, NULL,
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@ -99,7 +99,7 @@ int rtas_read_config(struct pci_bus *bus, unsigned int devfn, int offset,
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struct pci_controller *hose = bus->sysdata;
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unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
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| (((bus->number - hose->first_busno) & 0xff) << 16)
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| (hose->index << 24);
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| (hose->global_number << 24);
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int ret = -1;
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int rval;
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@ -114,7 +114,7 @@ int rtas_write_config(struct pci_bus *bus, unsigned int devfn, int offset,
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struct pci_controller *hose = bus->sysdata;
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unsigned long addr = (offset & 0xff) | ((devfn & 0xff) << 8)
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| (((bus->number - hose->first_busno) & 0xff) << 16)
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| (hose->index << 24);
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| (hose->global_number << 24);
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int rval;
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rval = rtas_call(rtas_token("write-pci-config"), 3, 1, NULL,
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@ -21,7 +21,6 @@ extern struct pci_controller* pci_bus_to_hose(int bus);
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struct pci_controller {
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struct pci_bus *bus;
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void *arch_data;
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int index; /* PCI domain number */
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struct pci_controller *next;
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struct device *parent;
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@ -60,6 +59,7 @@ struct pci_controller {
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*/
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struct resource io_resource;
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struct resource mem_resources[3];
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int global_number; /* PCI domain number */
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};
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static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
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@ -107,8 +107,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
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#define get_pci_dma_ops() NULL
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#endif
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extern int pci_domain_nr(struct pci_bus *bus);
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/* Decide whether to display the domain number in /proc */
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extern int pci_proc_domain(struct pci_bus *bus);
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@ -130,9 +128,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
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*/
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#define pci_dac_dma_supported(pci_dev, mask) (0)
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/* Return the index of the PCI controller for device PDEV. */
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#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
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/* Set the name of the bus as it appears in /proc/bus/pci */
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static inline int pci_proc_domain(struct pci_bus *bus)
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{
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@ -141,6 +136,8 @@ static inline int pci_proc_domain(struct pci_bus *bus)
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#endif /* CONFIG_PPC64 */
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extern int pci_domain_nr(struct pci_bus *bus);
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struct vm_area_struct;
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/* Map a range of PCI memory or I/O space for a device into user space */
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int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
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