2008-10-23 13:26:29 +08:00
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#ifndef _ASM_X86_PCI_H
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#define _ASM_X86_PCI_H
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2007-10-13 05:07:23 +08:00
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#include <linux/mm.h> /* for struct page */
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <asm/scatterlist.h>
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#include <asm/io.h>
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#ifdef __KERNEL__
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struct pci_sysdata {
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int domain; /* PCI domain */
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int node; /* NUMA node */
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#ifdef CONFIG_X86_64
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2008-03-23 16:03:04 +08:00
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void *iommu; /* IOMMU private data */
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2007-10-13 05:07:23 +08:00
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#endif
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};
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2008-05-12 21:43:37 +08:00
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extern int pci_routeirq;
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2008-06-11 22:35:14 +08:00
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extern int noioapicquirk;
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2008-07-15 19:48:55 +08:00
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extern int noioapicreroute;
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2008-05-12 21:43:37 +08:00
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2007-10-13 05:07:23 +08:00
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/* scan a bus after allocating a pci_sysdata for it */
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x86: get mp_bus_to_node early
Currently, on an amd k8 system with multi ht chains, the numa_node of
pci devices under /sys/devices/pci0000:80/* is always 0, even if that
chain is on node 1 or 2 or 3.
Workaround: pcibus_to_node(bus) is used when we want to get the node that
pci_device is on.
In struct device, we already have numa_node member, and we could use
dev_to_node()/set_dev_node() to get and set numa_node in the device.
set_dev_node is called in pci_device_add() with pcibus_to_node(bus),
and pcibus_to_node uses bus->sysdata for nodeid.
The problem is when pci_add_device is called, bus->sysdata is not assigned
correct nodeid yet. The result is that numa_node will always be 0.
pcibios_scan_root and pci_scan_root could take sysdata. So we need to get
mp_bus_to_node mapping before these two are called, and thus
get_mp_bus_to_node could get correct node for sysdata in root bus.
In scanning of the root bus, all child busses will take parent bus sysdata.
So all pci_device->dev.numa_node will be assigned correctly and automatically.
Later we could use dev_to_node(&pci_dev->dev) to get numa_node, and we
could also could make other bus specific device get the correct numa_node
too.
This is an updated version of pci_sysdata and Jeff's pci_domain patch.
[ mingo@elte.hu: build fix ]
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-02-19 19:20:09 +08:00
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extern struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops,
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int node);
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2007-10-13 05:07:23 +08:00
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extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
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static inline int pci_domain_nr(struct pci_bus *bus)
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{
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struct pci_sysdata *sd = bus->sysdata;
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return sd->domain;
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}
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static inline int pci_proc_domain(struct pci_bus *bus)
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{
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return pci_domain_nr(bus);
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}
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/* Can be used to override the logic in pci_scan_bus for skipping
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already-configured bus numbers - to be used for buggy BIOSes
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or architectures with incomplete PCI setup by the loader */
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#ifdef CONFIG_PCI
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extern unsigned int pcibios_assign_all_busses(void);
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2009-08-29 22:24:51 +08:00
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extern int pci_legacy_init(void);
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# ifdef CONFIG_ACPI
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# define x86_default_pci_init pci_acpi_init
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# else
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# define x86_default_pci_init pci_legacy_init
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# endif
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2007-10-13 05:07:23 +08:00
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#else
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2009-08-29 22:24:51 +08:00
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# define pcibios_assign_all_busses() 0
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# define x86_default_pci_init NULL
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2007-10-13 05:07:23 +08:00
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#endif
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extern unsigned long pci_mem_start;
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#define PCIBIOS_MIN_IO 0x1000
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#define PCIBIOS_MIN_MEM (pci_mem_start)
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#define PCIBIOS_MIN_CARDBUS_IO 0x4000
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void pcibios_config_init(void);
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2008-03-23 16:03:04 +08:00
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struct pci_bus *pcibios_scan_root(int bus);
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2007-10-13 05:07:23 +08:00
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void pcibios_set_master(struct pci_dev *dev);
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void pcibios_penalize_isa_irq(int irq, int active);
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struct irq_routing_table *pcibios_get_irq_routing_table(void);
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int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
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#define HAVE_PCI_MMAP
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extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
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2008-03-23 16:03:04 +08:00
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enum pci_mmap_state mmap_state,
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int write_combine);
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2007-10-13 05:07:23 +08:00
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#ifdef CONFIG_PCI
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2008-01-30 20:30:16 +08:00
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extern void early_quirks(void);
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2007-10-13 05:07:23 +08:00
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static inline void pci_dma_burst_advice(struct pci_dev *pdev,
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enum pci_dma_burst_strategy *strat,
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unsigned long *strategy_parameter)
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{
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*strat = PCI_DMA_BURST_INFINITY;
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*strategy_parameter = ~0UL;
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}
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2008-01-30 20:30:16 +08:00
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#else
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static inline void early_quirks(void) { }
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2007-10-13 05:07:23 +08:00
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#endif
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2008-12-17 04:17:36 +08:00
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extern void pci_iommu_alloc(void);
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2009-01-19 08:31:00 +08:00
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/* MSI arch hook */
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#define arch_setup_msi_irqs arch_setup_msi_irqs
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2009-04-02 21:55:55 +08:00
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#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
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#endif /* __KERNEL__ */
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#ifdef CONFIG_X86_64
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#include "pci_64.h"
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2007-10-13 05:07:23 +08:00
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#endif
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2010-02-10 17:20:19 +08:00
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void dma32_reserve_bootmem(void);
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2007-10-13 05:07:23 +08:00
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/* implement the pci_ DMA API in terms of the generic device dma_ one */
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#include <asm-generic/pci-dma-compat.h>
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/* generic pci stuff */
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#include <asm-generic/pci.h>
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2009-04-24 11:48:32 +08:00
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#define PCIBIOS_MAX_MEM_32 0xffffffff
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2007-10-13 05:07:23 +08:00
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2008-01-30 20:30:38 +08:00
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#ifdef CONFIG_NUMA
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/* Returns the node based on pci bus */
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2008-12-26 19:53:38 +08:00
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static inline int __pcibus_to_node(const struct pci_bus *bus)
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2008-01-30 20:30:38 +08:00
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{
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2008-12-26 19:53:38 +08:00
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const struct pci_sysdata *sd = bus->sysdata;
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2008-01-30 20:30:38 +08:00
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return sd->node;
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}
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2007-10-13 05:07:23 +08:00
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2008-12-26 19:53:38 +08:00
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static inline const struct cpumask *
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cpumask_of_pcibus(const struct pci_bus *bus)
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{
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2009-09-18 18:41:10 +08:00
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int node;
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node = __pcibus_to_node(bus);
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return (node == -1) ? cpu_online_mask :
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cpumask_of_node(node);
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2008-12-26 19:53:38 +08:00
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}
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2008-01-30 20:30:38 +08:00
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#endif
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2007-10-13 05:07:23 +08:00
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2008-10-23 13:26:29 +08:00
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#endif /* _ASM_X86_PCI_H */
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