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From: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org,
	Jeff Garzik <jgarzik@pobox.com>
Subject: [PATCH] ATA convert GSI to irq on ia64
Date: Thu, 08 Feb 2007 15:40:22 +0800	[thread overview]
Message-ID: <1170920422.15989.354.camel@ymzhang> (raw)

If an ATA drive uses legacy mode, ata driver will choose 14 and 15 as the
fixed irq number. On ia64 platform, such numbers are GSI and should be converted
to irq vector.

Below patch against kernel 2.6.20 fixes it.

Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>

---

diff -Nraup linux-2.6.20/include/asm-generic/libata-portmap.h linux-2.6.20_fix/include/asm-generic/libata-portmap.h
--- linux-2.6.20/include/asm-generic/libata-portmap.h	2007-02-08 15:13:44.000000000 +0800
+++ linux-2.6.20_fix/include/asm-generic/libata-portmap.h	2007-02-08 15:20:13.000000000 +0800
@@ -3,10 +3,20 @@
 
 #define ATA_PRIMARY_CMD		0x1F0
 #define ATA_PRIMARY_CTL		0x3F6
+#if defined(__ia64__)
+#define ATA_PRIMARY_IRQ(dev)	isa_irq_to_vector(14)
+#else
 #define ATA_PRIMARY_IRQ(dev)	14
+#endif
+
 
 #define ATA_SECONDARY_CMD	0x170
 #define ATA_SECONDARY_CTL	0x376
+#if defined(__ia64__)
+#define ATA_SECONDARY_IRQ(dev)	isa_irq_to_vector(15)
+#else
 #define ATA_SECONDARY_IRQ(dev)	15
+#endif
+
 
 #endif

             reply	other threads:[~2007-02-08  7:40 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-08  7:40 Zhang, Yanmin [this message]
2007-02-08  9:15 ` Luming Yu
2007-02-08  9:17   ` Luming Yu
2007-02-09  1:07     ` Zhang, Yanmin
2007-02-08 19:42 ` Christoph Hellwig
2007-02-08 20:25   ` Andrew Morton
2007-02-08 20:34     ` Christoph Hellwig
2007-02-08 20:46       ` Andrew Morton
2007-02-09  1:19 ` Jeff Garzik
2007-02-09  3:29   ` Zhang, Yanmin
2007-02-15 23:09     ` Jeff Garzik

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