forked from Minki/linux
4287d824f2
Until now, the MSI architecture-specific functions could be overloaded using a fairly complex set of #define and compile-time conditionals. In order to prepare for the introduction of the msi_chip infrastructure, it is desirable to switch all those functions to use the 'weak' mechanism. This commit converts all the architectures that were overidding those MSI functions to use the new strategy. Note that we keep two separate, non-weak, functions default_teardown_msi_irqs() and default_restore_msi_irqs() for the default behavior of the arch_teardown_msi_irqs() and arch_restore_msi_irqs(), as the default behavior is needed by x86 PCI code. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Daniel Price <daniel.price@gmail.com> Tested-by: Thierry Reding <thierry.reding@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: linuxppc-dev@lists.ozlabs.org Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: linux390@de.ibm.com Cc: linux-s390@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: x86@kernel.org Cc: Russell King <linux@arm.linux.org.uk> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: linux-ia64@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: David S. Miller <davem@davemloft.net> Cc: sparclinux@vger.kernel.org Cc: Chris Metcalf <cmetcalf@tilera.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
163 lines
3.9 KiB
C
163 lines
3.9 KiB
C
#ifndef _ASM_X86_PCI_H
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#define _ASM_X86_PCI_H
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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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#include <asm/x86_init.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_ACPI
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void *acpi; /* ACPI-specific data */
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#endif
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#ifdef CONFIG_X86_64
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void *iommu; /* IOMMU private data */
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#endif
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};
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extern int pci_routeirq;
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extern int noioapicquirk;
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extern int noioapicreroute;
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/* scan a bus after allocating a pci_sysdata for it */
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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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extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
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#ifdef CONFIG_PCI
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#ifdef CONFIG_PCI_DOMAINS
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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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#endif
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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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extern unsigned int pcibios_assign_all_busses(void);
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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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#else
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# define pcibios_assign_all_busses() 0
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# define x86_default_pci_init NULL
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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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extern int pcibios_enabled;
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void pcibios_config_init(void);
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struct pci_bus *pcibios_scan_root(int bus);
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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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enum pci_mmap_state mmap_state,
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int write_combine);
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#ifdef CONFIG_PCI
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extern void early_quirks(void);
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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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#else
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static inline void early_quirks(void) { }
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#endif
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extern void pci_iommu_alloc(void);
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#ifdef CONFIG_PCI_MSI
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/* implemented in arch/x86/kernel/apic/io_apic. */
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struct msi_desc;
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int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
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void native_teardown_msi_irq(unsigned int irq);
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void native_restore_msi_irqs(struct pci_dev *dev, int irq);
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int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc,
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unsigned int irq_base, unsigned int irq_offset);
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#else
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#define native_setup_msi_irqs NULL
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#define native_teardown_msi_irq NULL
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#endif
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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 <asm/pci_64.h>
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#endif
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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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#define PCIBIOS_MAX_MEM_32 0xffffffff
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#ifdef CONFIG_NUMA
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/* Returns the node based on pci bus */
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static inline int __pcibus_to_node(const struct pci_bus *bus)
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{
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const struct pci_sysdata *sd = bus->sysdata;
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return sd->node;
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}
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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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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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}
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#endif
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struct pci_setup_rom {
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struct setup_data data;
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uint16_t vendor;
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uint16_t devid;
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uint64_t pcilen;
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unsigned long segment;
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unsigned long bus;
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unsigned long device;
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unsigned long function;
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uint8_t romdata[0];
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};
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#endif /* _ASM_X86_PCI_H */
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