From 7b89941a2c2e1d07096fc7fffe48c2a45c446877 Mon Sep 17 00:00:00 2001
From: "awilliam@xenbuild.aw" <awilliam@xenbuild.aw>
Date: Fri, 21 Apr 2006 08:56:34 -0600
Subject: [PATCH] [IA64] Compile iosapic within xen

Compile iosapic within xen. Part of code from Tristan.

Signed-off-by Kevin Tian <kevin.tian@intel.com>
---
 xen/arch/ia64/linux-xen/Makefile             |  1 +
 xen/arch/ia64/linux-xen/iosapic.c            |  6 ++++
 xen/include/asm-ia64/config.h                |  1 +
 xen/include/asm-ia64/linux-xen/asm/iosapic.h | 32 ++++++++++++++++++++
 4 files changed, 40 insertions(+)

diff --git a/xen/arch/ia64/linux-xen/Makefile b/xen/arch/ia64/linux-xen/Makefile
index ca5354b343..7adea3519f 100644
--- a/xen/arch/ia64/linux-xen/Makefile
+++ b/xen/arch/ia64/linux-xen/Makefile
@@ -13,3 +13,4 @@ obj-y += time.o
 obj-y += tlb.o
 obj-y += unaligned.o
 obj-y += unwind.o
+obj-y += iosapic.o
diff --git a/xen/arch/ia64/linux-xen/iosapic.c b/xen/arch/ia64/linux-xen/iosapic.c
index 574084f343..9d964abba4 100644
--- a/xen/arch/ia64/linux-xen/iosapic.c
+++ b/xen/arch/ia64/linux-xen/iosapic.c
@@ -75,7 +75,9 @@
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
+#ifndef XEN
 #include <linux/pci.h>
+#endif
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/string.h>
@@ -524,7 +526,11 @@ static struct iosapic_rte_info *iosapic_alloc_rte (void)
 	int preallocated = 0;
 
 	if (!iosapic_kmalloc_ok && list_empty(&free_rte_list)) {
+#ifdef XEN
+		rte = xmalloc_bytes(sizeof(struct iosapic_rte_info) * NR_PREALLOCATE_RTE_ENTRIES);
+#else
 		rte = alloc_bootmem(sizeof(struct iosapic_rte_info) * NR_PREALLOCATE_RTE_ENTRIES);
+#endif
 		if (!rte)
 			return NULL;
 		for (i = 0; i < NR_PREALLOCATE_RTE_ENTRIES; i++, rte++)
diff --git a/xen/include/asm-ia64/config.h b/xen/include/asm-ia64/config.h
index 2d541d2a6a..ff9971e66e 100644
--- a/xen/include/asm-ia64/config.h
+++ b/xen/include/asm-ia64/config.h
@@ -35,6 +35,7 @@
 #endif
 #define CONFIG_NR_CPUS NR_CPUS
 
+#define CONFIG_IOSAPIC
 #define supervisor_mode_kernel (0)
 
 #define MAX_DMADOM_PFN (0x7FFFFFFFUL >> PAGE_SHIFT) /* 31 addressable bits */
diff --git a/xen/include/asm-ia64/linux-xen/asm/iosapic.h b/xen/include/asm-ia64/linux-xen/asm/iosapic.h
index 20f98f1751..ab6c584a75 100644
--- a/xen/include/asm-ia64/linux-xen/asm/iosapic.h
+++ b/xen/include/asm-ia64/linux-xen/asm/iosapic.h
@@ -108,5 +108,37 @@ extern void __devinit map_iosapic_to_node (unsigned int, int);
 	polarity,trigger)					(gsi)
 #endif
 
+#ifdef XEN
+/* Move to common code later */
+/**
+ * list_move - delete from one list and add as another's head
+ * @list: the entry to move
+ * @head: the head that will precede our entry
+ */
+static inline void list_move(struct list_head *list, struct list_head *head)
+{
+        __list_del(list->prev, list->next);
+        list_add(list, head);
+}
+
+#define move_irq(x)
+
+#define WARN_ON(condition) do { \
+	if (unlikely((condition)!=0)) { \
+		printk("Badness in %s at %s:%d\n", __FUNCTION__, __FILE__, __LINE__); \
+		dump_stack(); \
+	} \
+} while (0)
+
+#ifdef nop
+#undef nop
+#endif
+
+/* nop for now */
+static inline void
+set_irq_affinity_info(unsigned int irq, int hwid, int redir) {}
+
+#endif /* XEN */
+
 # endif /* !__ASSEMBLY__ */
 #endif /* __ASM_IA64_IOSAPIC_H */
-- 
2.30.2