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sgi-gru: add macros for using the UV hub to send interrupts

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Add macros for using the UV hub to send interrupts.  Change the IPI code
to use these macros.  These macros will also be used in additional patches
that will follow.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jack Steiner
2009-04-02 16:59:03 -07:00
committed by Linus Torvalds
parent c7296700ed
commit 66666e50fc
3 changed files with 20 additions and 7 deletions
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12
arch/x86/include/asm/uv/uv_hub.h
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@ -17,6 +17,7 @@
#include <linux/timer.h>
#include <asm/types.h>
#include <asm/percpu.h>
#include <asm/uv/uv_mmrs.h>
/*
@ -398,6 +399,7 @@ static inline void uv_set_scir_bits(unsigned char value)
uv_write_local_mmr8(uv_hub_info->scir.offset, value);
}
}
static inline void uv_set_cpu_scir_bits(int cpu, unsigned char value)
{
if (uv_cpu_hub_info(cpu)->scir.state != value) {
@ -406,5 +408,15 @@ static inline void uv_set_cpu_scir_bits(int cpu, unsigned char value)
}
}
static inline void uv_hub_send_ipi(int pnode, int apicid, int vector)
{
unsigned long val;
val = (1UL << UVH_IPI_INT_SEND_SHFT) |
((apicid & 0x3f) << UVH_IPI_INT_APIC_ID_SHFT) |
(vector << UVH_IPI_INT_VECTOR_SHFT);
uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
}
#endif /* CONFIG_X86_64 */
#endif /* _ASM_X86_UV_UV_HUB_H */