From: Jack Steiner <steiner@sgi.com>
To: mingo@elte.hu, tglx@linutronix.de
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] x86: SGU UV Fix IPI macros
Date: Wed, 9 Sep 2009 10:41:05 -0500 [thread overview]
Message-ID: <20090909154104.GA25083@sgi.com> (raw)
UV bios has changed the way interrupt remapping is being done. This
affects the id used for sending IPIs. The upper id bits no longer
need to be masked off.
Signed-off-by: Jack Steiner <steiner@sgi.com>
---
Index: linux/arch/x86/include/asm/uv/uv_hub.h
===================================================================
--- linux.orig/arch/x86/include/asm/uv/uv_hub.h 2009-08-06 16:26:40.000000000 -0500
+++ linux/arch/x86/include/asm/uv/uv_hub.h 2009-08-12 11:11:23.000000000 -0500
@@ -422,7 +422,7 @@ static inline void uv_hub_send_ipi(int p
unsigned long val;
val = (1UL << UVH_IPI_INT_SEND_SHFT) |
- ((apicid & 0x3f) << UVH_IPI_INT_APIC_ID_SHFT) |
+ ((apicid) << UVH_IPI_INT_APIC_ID_SHFT) |
(vector << UVH_IPI_INT_VECTOR_SHFT);
uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
}
next reply other threads:[~2009-09-09 15:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-09 15:41 Jack Steiner [this message]
2009-09-18 12:06 ` [tip:x86/urgent] x86: SGI UV: Fix IPI macros tip-bot for Jack Steiner
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