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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-28 17:11:17 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-28 17:11:17 -0700 |
commit | 18cb657ca1bafe635f368346a1676fb04c512edf (patch) | |
tree | b0eb6a4ceddf98e7bf820be7ff24bf131ff56b0c /arch/x86/kernel | |
parent | 2301b65b86df8b80e6779ce9885ad62a5c4adc38 (diff) | |
parent | e28c31a96b1570f17731b18e8efabb7308d0c22c (diff) | |
download | op-kernel-dev-18cb657ca1bafe635f368346a1676fb04c512edf.zip op-kernel-dev-18cb657ca1bafe635f368346a1676fb04c512edf.tar.gz |
Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
and branch 'for-linus' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm
* 'for-linus' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm:
xen: register xen pci notifier
xen: initialize cpu masks for pv guests in xen_smp_init
xen: add a missing #include to arch/x86/pci/xen.c
xen: mask the MTRR feature from the cpuid
xen: make hvc_xen console work for dom0.
xen: add the direct mapping area for ISA bus access
xen: Initialize xenbus for dom0.
xen: use vcpu_ops to setup cpu masks
xen: map a dummy page for local apic and ioapic in xen_set_fixmap
xen: remap MSIs into pirqs when running as initial domain
xen: remap GSIs as pirqs when running as initial domain
xen: introduce XEN_DOM0 as a silent option
xen: map MSIs into pirqs
xen: support GSI -> pirq remapping in PV on HVM guests
xen: add xen hvm acpi_register_gsi variant
acpi: use indirect call to register gsi in different modes
xen: implement xen_hvm_register_pirq
xen: get the maximum number of pirqs from xen
xen: support pirq != irq
* 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: (27 commits)
X86/PCI: Remove the dependency on isapnp_disable.
xen: Update Makefile with CONFIG_BLOCK dependency for biomerge.c
MAINTAINERS: Add myself to the Xen Hypervisor Interface and remove Chris Wright.
x86: xen: Sanitse irq handling (part two)
swiotlb-xen: On x86-32 builts, select SWIOTLB instead of depending on it.
MAINTAINERS: Add myself for Xen PCI and Xen SWIOTLB maintainer.
xen/pci: Request ACS when Xen-SWIOTLB is activated.
xen-pcifront: Xen PCI frontend driver.
xenbus: prevent warnings on unhandled enumeration values
xenbus: Xen paravirtualised PCI hotplug support.
xen/x86/PCI: Add support for the Xen PCI subsystem
x86: Introduce x86_msi_ops
msi: Introduce default_[teardown|setup]_msi_irqs with fallback.
x86/PCI: Export pci_walk_bus function.
x86/PCI: make sure _PAGE_IOMAP it set on pci mappings
x86/PCI: Clean up pci_cache_line_size
xen: fix shared irq device passthrough
xen: Provide a variant of xen_poll_irq with timeout.
xen: Find an unbound irq number in reverse order (high to low).
xen: statically initialize cpu_evtchn_mask_p
...
Fix up trivial conflicts in drivers/pci/Makefile
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r-- | arch/x86/kernel/acpi/boot.c | 60 | ||||
-rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 9 | ||||
-rw-r--r-- | arch/x86/kernel/x86_init.c | 7 |
3 files changed, 57 insertions, 19 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index c05872a..71232b9 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -513,35 +513,62 @@ int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi) return 0; } -/* - * success: return IRQ number (>=0) - * failure: return < 0 - */ -int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) +static int acpi_register_gsi_pic(struct device *dev, u32 gsi, + int trigger, int polarity) { - unsigned int irq; - unsigned int plat_gsi = gsi; - #ifdef CONFIG_PCI /* * Make sure all (legacy) PCI IRQs are set as level-triggered. */ - if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { - if (trigger == ACPI_LEVEL_SENSITIVE) - eisa_set_level_irq(gsi); - } + if (trigger == ACPI_LEVEL_SENSITIVE) + eisa_set_level_irq(gsi); #endif + return gsi; +} + +static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi, + int trigger, int polarity) +{ #ifdef CONFIG_X86_IO_APIC - if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC) { - plat_gsi = mp_register_gsi(dev, gsi, trigger, polarity); - } + gsi = mp_register_gsi(dev, gsi, trigger, polarity); #endif + + return gsi; +} + +int (*__acpi_register_gsi)(struct device *dev, u32 gsi, + int trigger, int polarity) = acpi_register_gsi_pic; + +/* + * success: return IRQ number (>=0) + * failure: return < 0 + */ +int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity) +{ + unsigned int irq; + unsigned int plat_gsi = gsi; + + plat_gsi = (*__acpi_register_gsi)(dev, gsi, trigger, polarity); irq = gsi_to_irq(plat_gsi); return irq; } +void __init acpi_set_irq_model_pic(void) +{ + acpi_irq_model = ACPI_IRQ_MODEL_PIC; + __acpi_register_gsi = acpi_register_gsi_pic; + acpi_ioapic = 0; +} + +void __init acpi_set_irq_model_ioapic(void) +{ + acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; + __acpi_register_gsi = acpi_register_gsi_ioapic; + acpi_ioapic = 1; +} + /* * ACPI based hotplug support for CPU */ @@ -1259,8 +1286,7 @@ static void __init acpi_process_madt(void) */ error = acpi_parse_madt_ioapic_entries(); if (!error) { - acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC; - acpi_ioapic = 1; + acpi_set_irq_model_ioapic(); smp_found_config = 1; } diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 8ae808d..0929191 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3331,7 +3331,7 @@ static int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int irq) return 0; } -int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) +int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) { int node, ret, sub_handle, index = 0; unsigned int irq, irq_want; @@ -3389,7 +3389,7 @@ error: return ret; } -void arch_teardown_msi_irq(unsigned int irq) +void native_teardown_msi_irq(unsigned int irq) { destroy_irq(irq); } @@ -3650,6 +3650,11 @@ void __init probe_nr_irqs_gsi(void) printk(KERN_DEBUG "nr_irqs_gsi: %d\n", nr_irqs_gsi); } +int get_nr_irqs_gsi(void) +{ + return nr_irqs_gsi; +} + #ifdef CONFIG_SPARSE_IRQ int __init arch_probe_nr_irqs(void) { diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index cd6da6b..ceb2911 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -6,10 +6,12 @@ #include <linux/init.h> #include <linux/ioport.h> #include <linux/module.h> +#include <linux/pci.h> #include <asm/bios_ebda.h> #include <asm/paravirt.h> #include <asm/pci_x86.h> +#include <asm/pci.h> #include <asm/mpspec.h> #include <asm/setup.h> #include <asm/apic.h> @@ -99,3 +101,8 @@ struct x86_platform_ops x86_platform = { }; EXPORT_SYMBOL_GPL(x86_platform); +struct x86_msi_ops x86_msi = { + .setup_msi_irqs = native_setup_msi_irqs, + .teardown_msi_irq = native_teardown_msi_irq, + .teardown_msi_irqs = default_teardown_msi_irqs, +}; |