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8b955b0ddd
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>
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
#ifndef ASM_HYPERTRANSPORT_H
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#define ASM_HYPERTRANSPORT_H
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/*
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* Constants for x86 Hypertransport Interrupts.
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*/
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#define HT_IRQ_LOW_BASE 0xf8000000
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#define HT_IRQ_LOW_VECTOR_SHIFT 16
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#define HT_IRQ_LOW_VECTOR_MASK 0x00ff0000
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#define HT_IRQ_LOW_VECTOR(v) (((v) << HT_IRQ_LOW_VECTOR_SHIFT) & HT_IRQ_LOW_VECTOR_MASK)
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#define HT_IRQ_LOW_DEST_ID_SHIFT 8
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#define HT_IRQ_LOW_DEST_ID_MASK 0x0000ff00
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#define HT_IRQ_LOW_DEST_ID(v) (((v) << HT_IRQ_LOW_DEST_ID_SHIFT) & HT_IRQ_LOW_DEST_ID_MASK)
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#define HT_IRQ_LOW_DM_PHYSICAL 0x0000000
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#define HT_IRQ_LOW_DM_LOGICAL 0x0000040
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#define HT_IRQ_LOW_RQEOI_EDGE 0x0000000
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#define HT_IRQ_LOW_RQEOI_LEVEL 0x0000020
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#define HT_IRQ_LOW_MT_FIXED 0x0000000
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#define HT_IRQ_LOW_MT_ARBITRATED 0x0000004
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#define HT_IRQ_LOW_MT_SMI 0x0000008
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#define HT_IRQ_LOW_MT_NMI 0x000000c
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#define HT_IRQ_LOW_MT_INIT 0x0000010
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#define HT_IRQ_LOW_MT_STARTUP 0x0000014
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#define HT_IRQ_LOW_MT_EXTINT 0x0000018
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#define HT_IRQ_LOW_MT_LINT1 0x000008c
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#define HT_IRQ_LOW_MT_LINT0 0x0000098
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#define HT_IRQ_LOW_IRQ_MASKED 0x0000001
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#define HT_IRQ_HIGH_DEST_ID_SHIFT 0
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#define HT_IRQ_HIGH_DEST_ID_MASK 0x00ffffff
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#define HT_IRQ_HIGH_DEST_ID(v) ((((v) >> 8) << HT_IRQ_HIGH_DEST_ID_SHIFT) & HT_IRQ_HIGH_DEST_ID_MASK)
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#endif /* ASM_HYPERTRANSPORT_H */
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