[PATCH] ATA convert GSI to irq on ia64

["Zhang, Yanmin" <yanmin_zhang@linux.intel.com>]

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
-
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