diff options
Diffstat (limited to 'arch/x86/include/asm')
| -rw-r--r-- | arch/x86/include/asm/acpi.h | 3 | ||||
| -rw-r--r-- | arch/x86/include/asm/io.h | 13 | ||||
| -rw-r--r-- | arch/x86/include/asm/io_apic.h | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/pci.h | 33 | ||||
| -rw-r--r-- | arch/x86/include/asm/pci_x86.h | 1 | ||||
| -rw-r--r-- | arch/x86/include/asm/x86_init.h | 9 | ||||
| -rw-r--r-- | arch/x86/include/asm/xen/pci.h | 65 |
7 files changed, 123 insertions, 2 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h index 92091de11113..55d106b5e31b 100644 --- a/arch/x86/include/asm/acpi.h +++ b/arch/x86/include/asm/acpi.h @@ -93,6 +93,9 @@ extern u8 acpi_sci_flags; extern int acpi_sci_override_gsi; void acpi_pic_sci_set_trigger(unsigned int, u16); +extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi, + int trigger, int polarity); + static inline void disable_acpi(void) { acpi_disabled = 1; diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index f0203f4791a8..072273082528 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -41,6 +41,8 @@ #include <asm-generic/int-ll64.h> #include <asm/page.h> +#include <xen/xen.h> + #define build_mmio_read(name, size, type, reg, barrier) \ static inline type name(const volatile void __iomem *addr) \ { type ret; asm volatile("mov" size " %1,%0":reg (ret) \ @@ -351,6 +353,17 @@ extern void early_iounmap(void __iomem *addr, unsigned long size); extern void fixup_early_ioremap(void); extern bool is_early_ioremap_ptep(pte_t *ptep); +#ifdef CONFIG_XEN +struct bio_vec; + +extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1, + const struct bio_vec *vec2); + +#define BIOVEC_PHYS_MERGEABLE(vec1, vec2) \ + (__BIOVEC_PHYS_MERGEABLE(vec1, vec2) && \ + (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2))) +#endif /* CONFIG_XEN */ + #define IO_SPACE_LIMIT 0xffff #endif /* _ASM_X86_IO_H */ diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h index c8be4566c3d2..a6b28d017c2f 100644 --- a/arch/x86/include/asm/io_apic.h +++ b/arch/x86/include/asm/io_apic.h @@ -169,6 +169,7 @@ extern void mask_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries); extern int restore_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries); extern void probe_nr_irqs_gsi(void); +extern int get_nr_irqs_gsi(void); extern void setup_ioapic_ids_from_mpc(void); diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index d395540ff894..ca0437c714b2 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -7,6 +7,7 @@ #include <linux/string.h> #include <asm/scatterlist.h> #include <asm/io.h> +#include <asm/x86_init.h> #ifdef __KERNEL__ @@ -94,8 +95,36 @@ static inline void early_quirks(void) { } extern void pci_iommu_alloc(void); -/* MSI arch hook */ -#define arch_setup_msi_irqs arch_setup_msi_irqs +#ifdef CONFIG_PCI_MSI +/* MSI arch specific hooks */ +static inline int x86_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) +{ + return x86_msi.setup_msi_irqs(dev, nvec, type); +} + +static inline void x86_teardown_msi_irqs(struct pci_dev *dev) +{ + x86_msi.teardown_msi_irqs(dev); +} + +static inline void x86_teardown_msi_irq(unsigned int irq) +{ + x86_msi.teardown_msi_irq(irq); +} +#define arch_setup_msi_irqs x86_setup_msi_irqs +#define arch_teardown_msi_irqs x86_teardown_msi_irqs +#define arch_teardown_msi_irq x86_teardown_msi_irq +/* implemented in arch/x86/kernel/apic/io_apic. */ +int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type); +void native_teardown_msi_irq(unsigned int irq); +/* default to the implementation in drivers/lib/msi.c */ +#define HAVE_DEFAULT_MSI_TEARDOWN_IRQS +void default_teardown_msi_irqs(struct pci_dev *dev); +#else +#define native_setup_msi_irqs NULL +#define native_teardown_msi_irq NULL +#define default_teardown_msi_irqs NULL +#endif #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h index 49c7219826f9..704526734bef 100644 --- a/arch/x86/include/asm/pci_x86.h +++ b/arch/x86/include/asm/pci_x86.h @@ -47,6 +47,7 @@ enum pci_bf_sort_state { extern unsigned int pcibios_max_latency; void pcibios_resource_survey(void); +void pcibios_set_cache_line_size(void); /* pci-pc.c */ diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index baa579c8e038..64642ad019fb 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -154,9 +154,18 @@ struct x86_platform_ops { int (*i8042_detect)(void); }; +struct pci_dev; + +struct x86_msi_ops { + int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); + void (*teardown_msi_irq)(unsigned int irq); + void (*teardown_msi_irqs)(struct pci_dev *dev); +}; + extern struct x86_init_ops x86_init; extern struct x86_cpuinit_ops x86_cpuinit; extern struct x86_platform_ops x86_platform; +extern struct x86_msi_ops x86_msi; extern void x86_init_noop(void); extern void x86_init_uint_noop(unsigned int unused); diff --git a/arch/x86/include/asm/xen/pci.h b/arch/x86/include/asm/xen/pci.h new file mode 100644 index 000000000000..2329b3eaf8d3 --- /dev/null +++ b/arch/x86/include/asm/xen/pci.h @@ -0,0 +1,65 @@ +#ifndef _ASM_X86_XEN_PCI_H +#define _ASM_X86_XEN_PCI_H + +#if defined(CONFIG_PCI_XEN) +extern int __init pci_xen_init(void); +extern int __init pci_xen_hvm_init(void); +#define pci_xen 1 +#else +#define pci_xen 0 +#define pci_xen_init (0) +static inline int pci_xen_hvm_init(void) +{ + return -1; +} +#endif +#if defined(CONFIG_XEN_DOM0) +void __init xen_setup_pirqs(void); +#else +static inline void __init xen_setup_pirqs(void) +{ +} +#endif + +#if defined(CONFIG_PCI_MSI) +#if defined(CONFIG_PCI_XEN) +/* The drivers/pci/xen-pcifront.c sets this structure to + * its own functions. + */ +struct xen_pci_frontend_ops { + int (*enable_msi)(struct pci_dev *dev, int **vectors); + void (*disable_msi)(struct pci_dev *dev); + int (*enable_msix)(struct pci_dev *dev, int **vectors, int nvec); + void (*disable_msix)(struct pci_dev *dev); +}; + +extern struct xen_pci_frontend_ops *xen_pci_frontend; + +static inline int xen_pci_frontend_enable_msi(struct pci_dev *dev, + int **vectors) +{ + if (xen_pci_frontend && xen_pci_frontend->enable_msi) + return xen_pci_frontend->enable_msi(dev, vectors); + return -ENODEV; +} +static inline void xen_pci_frontend_disable_msi(struct pci_dev *dev) +{ + if (xen_pci_frontend && xen_pci_frontend->disable_msi) + xen_pci_frontend->disable_msi(dev); +} +static inline int xen_pci_frontend_enable_msix(struct pci_dev *dev, + int **vectors, int nvec) +{ + if (xen_pci_frontend && xen_pci_frontend->enable_msix) + return xen_pci_frontend->enable_msix(dev, vectors, nvec); + return -ENODEV; +} +static inline void xen_pci_frontend_disable_msix(struct pci_dev *dev) +{ + if (xen_pci_frontend && xen_pci_frontend->disable_msix) + xen_pci_frontend->disable_msix(dev); +} +#endif /* CONFIG_PCI_XEN */ +#endif /* CONFIG_PCI_MSI */ + +#endif /* _ASM_X86_XEN_PCI_H */ |