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| author | Eric W. Biederman <ebiederm@xmission.com> | 2006-10-04 11:16:55 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 16:55:29 +0200 |
| commit | 8b955b0dddb35e398b07e217a81f8bd49400796f (patch) | |
| tree | 6fc307371b6889ac08fa5a7187cde1c137c8d765 /drivers/pci/Kconfig | |
| parent | [PATCH] Add Hypertransport capability defines (diff) | |
| download | linux-8b955b0dddb35e398b07e217a81f8bd49400796f.tar.xz linux-8b955b0dddb35e398b07e217a81f8bd49400796f.zip | |
[PATCH] Initial generic hypertransport interrupt support
This patch implements two functions ht_create_irq and ht_destroy_irq for
use by drivers. Several other functions are implemented as helpers for
arch specific irq_chip handlers.
The driver for the card I tested this on isn't yet ready to be merged.
However this code is and hypertransport irqs are in use in a few other
places in the kernel. Not that any of this will get merged before 2.6.19
Because the ipath-ht400 is slightly out of spec this code will need to be
generalized to work there.
I think all of the powerpc uses are for a plain interrupt controller in a
chipset so support for native hypertransport devices is a little less
interesting.
However I think this is a half way decent model on how to separate arch
specific and generic helper code, and I think this is a functional model of
how to get the architecture dependencies out of the msi code.
[akpm@osdl.org: Kconfig fix]
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Greg KH <greg@kroah.com>
Cc: Andi Kleen <ak@muc.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/pci/Kconfig')
| -rw-r--r-- | drivers/pci/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index c27e782e6df9..0af6d7288415 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -52,3 +52,12 @@ config PCI_DEBUG When in doubt, say N. +config HT_IRQ + bool "Interrupts on hypertransport devices" + default y + depends on PCI_MSI + depends on X86_LOCAL_APIC && X86_IO_APIC + help + This allows native hypertransport devices to use interrupts. + + If unsure say Y. |