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| author | Mark Maule <maule@sgi.com> | 2006-04-14 21:03:49 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-06-21 18:59:59 (GMT) |
| commit | 10083072bfabc40bc47306e512c158c57cf55c2e (patch) | |
| tree | 2c7c3f08ae779594026e67a7a36915c2f97d73b9 /include | |
| parent | fd58e55fcf5568e51da2ed54d7acd049c3fdb184 (diff) | |
| download | linux-10083072bfabc40bc47306e512c158c57cf55c2e.tar.xz | |
[PATCH] PCI: per-platform IA64_{FIRST,LAST}_DEVICE_VECTOR definitions
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ia64/hw_irq.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h index 0cf119b..ea8b8c4 100644 --- a/include/asm-ia64/hw_irq.h +++ b/include/asm-ia64/hw_irq.h @@ -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); |