lwn.git/arch/x86_64/kernel/i8259.c, branch docs-next

x86_64: prepare shared kernel/i8259.c

2007-10-11T09:14:13+00:00

Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar

x86_64: Move functions declarations to header file

2007-07-22T01:37:12+00:00

Some interrupt entry points are currently defined in i8259.c They probably belong in a header. Right now, their only user is init_IRQ, justifying their declaration in-file. But when virtualization comes in, we may be interested in using that functions in late initializations. Signed-off-by: Glauber de Oliveira Costa Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds

header cleaning: don't include smp_lock.h when not used

2007-05-08T18:15:07+00:00

Remove includes of where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] x86_64 irq: Fix comments after changing IRQ0_VECTOR from 0x20 to 0x30

2007-03-29T15:16:23+00:00

Signed-off-by: Yinghai Lu Signed-off-by: "Eric W. Biederman" Signed-off-by: Linus Torvalds

[PATCH] x86_64 irq: Safely cleanup an irq after moving it.

2007-02-26T18:34:08+00:00

The problem: After moving an interrupt when is it safe to teardown the data structures for receiving the interrupt at the old location? With a normal pci device it is possible to issue a read to a device to flush all posted writes. This does not work for the oldest ioapics because they are on a 3-wire apic bus which is a completely different data path. For some more modern ioapics when everything is using front side bus delivery you can flush interrupts by simply issuing a read to the ioapic. For other modern ioapics emperical testing has shown that this does not work. So it appears the only reliable way to know the last of the irqs from an ioapic have been received from before the ioapic was reprogrammed is to received the first irq from the ioapic from after it was reprogrammed. Once we know the last irq message has been received from an ioapic into a local apic we then need to know that irq message has been processed through the local apics. Signed-off-by: Eric W. Biederman Signed-off-by: Linus Torvalds

[PATCH] x86_64 irq: Add constants for the reserved IRQ vectors.

2007-02-26T18:34:08+00:00

For the ISA irqs we reserve 16 vectors. This patch adds constants for those vectors and modifies the code to use them. Making the code a little clearer and making it possible to move these vectors in the future. Signed-off-by: Eric W. Biederman Signed-off-by: Linus Torvalds

[PATCH] x86_64 irq: Remove unnecessary irq 0 setup.

2007-02-26T18:34:08+00:00

The code in io_apic.c and in i8259.c currently hardcode the same vector for the timer interrupt so there is no reason for a special assignment for the timer as the setup for the i8259 already takes care of this. Signed-off-by: Eric W. Biederman Signed-off-by: Linus Torvalds

[PATCH] genirq: do not mask interrupts by default

2007-02-16T16:14:00+00:00

Never mask interrupts immediately upon request. Disabling interrupts in high-performance codepaths is rare, and on the other hand this change could recover lost edges (or even other types of lost interrupts) by conservatively only masking interrupts after they happen. (NOTE: with this change the highlevel irq-disable code still soft-disables this IRQ line - and if such an interrupt happens then the IRQ flow handler keeps the IRQ masked.) Mark i8529A controllers as 'never loses an edge'. Signed-off-by: Ingo Molnar Cc: Thomas Gleixner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[PATCH] x86_64: interrupt array size should be aligned to NR_VECTORS

2006-12-07T01:14:12+00:00

interrupt array is referred for idt vectors instead of NR_IRQS, so change size to NR_VECTORS - FIRST_EXTERNAL_VECTOR. Also change to static. Signed-off-by: Yinghai Lu Signed-off-by: Andi Kleen

[PATCH] genirq: clean up irq-flow-type naming

2006-10-17T15:18:45+00:00

Introduce desc->name and eliminate the handle_irq_name() hack. Add set_irq_chip_and_handler_name() to set the flow type and name at once. Signed-off-by: Ingo Molnar Acked-by: Thomas Gleixner Cc: "Eric W. Biederman" Cc: Matthew Wilcox Cc: Kyle McMartin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds