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[PATCH] PCI: per-platform IA64_{FIRST,LAST}_DEVICE_VECTOR definitions

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Abstract IA64_FIRST_DEVICE_VECTOR/IA64_LAST_DEVICE_VECTOR since SN platforms
use a subset of the IA64 range.  Implement this by making the above macros
global variables which the platform can override in it setup code.

Also add a reserve_irq_vector() routine used by SN to mark a vector's as
in-use when that weren't allocated through assign_irq_vector().

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mark Maule
2006-04-14 16:03:49 -05:00
committed by Greg Kroah-Hartman
parent fd58e55fcf
commit 10083072bf
4 changed files with 43 additions and 4 deletions
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15
include/asm-ia64/hw_irq.h
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@@ -47,9 +47,19 @@ typedef u8 ia64_vector;
#define IA64_CMC_VECTOR 0x1f /* corrected machine-check interrupt vector */
/*
* Vectors 0x20-0x2f are reserved for legacy ISA IRQs.
* Use vectors 0x30-0xe7 as the default device vector range for ia64.
* Platforms may choose to reduce this range in platform_irq_setup, but the
* platform range must fall within
* [IA64_DEF_FIRST_DEVICE_VECTOR..IA64_DEF_LAST_DEVICE_VECTOR]
*/
#define IA64_FIRST_DEVICE_VECTOR 0x30
#define IA64_LAST_DEVICE_VECTOR 0xe7
extern int ia64_first_device_vector;
extern int ia64_last_device_vector;
#define IA64_DEF_FIRST_DEVICE_VECTOR 0x30
#define IA64_DEF_LAST_DEVICE_VECTOR 0xe7
#define IA64_FIRST_DEVICE_VECTOR ia64_first_device_vector
#define IA64_LAST_DEVICE_VECTOR ia64_last_device_vector
#define IA64_MAX_DEVICE_VECTORS (IA64_DEF_LAST_DEVICE_VECTOR - IA64_DEF_FIRST_DEVICE_VECTOR + 1)
#define IA64_NUM_DEVICE_VECTORS (IA64_LAST_DEVICE_VECTOR - IA64_FIRST_DEVICE_VECTOR + 1)
#define IA64_MCA_RENDEZ_VECTOR 0xe8 /* MCA rendez interrupt */
@@ -83,6 +93,7 @@ extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt
extern int assign_irq_vector (int irq); /* allocate a free vector */
extern void free_irq_vector (int vector);
extern int reserve_irq_vector (int vector);
extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect);
extern void register_percpu_irq (ia64_vector vec, struct irqaction *action);