[Xen-changelog] [xen-unstable] [IA64] introduce iosapci ID.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
# Date 1223607483 -32400
# Node ID af8eaa3cf78200568bdfd7e7d87a546c53e6bd7b
# Parent  1a77bb358d7b1416a1f453f8ebd0039d3db44e6f
[IA64] introduce iosapci ID.

introduce iosapci ID, which is used to index DMA engine covering this iosapic.

Signed-off-by; Anthony Xu <anthony.xu@xxxxxxxxx>
---
 xen/arch/ia64/linux-xen/acpi.c               |    5 ++++
 xen/arch/ia64/linux-xen/iosapic.c            |   11 +++++++++
 xen/include/asm-ia64/linux-xen/asm/iosapic.h |   33 +++++++++++++++++++++++++++
 3 files changed, 49 insertions(+)

diff -r 1a77bb358d7b -r af8eaa3cf782 xen/arch/ia64/linux-xen/acpi.c
--- a/xen/arch/ia64/linux-xen/acpi.c    Fri Oct 10 11:57:23 2008 +0900
+++ b/xen/arch/ia64/linux-xen/acpi.c    Fri Oct 10 11:58:03 2008 +0900
@@ -294,7 +294,12 @@ acpi_parse_iosapic(struct acpi_subtable_
        if (BAD_MADT_ENTRY(iosapic, end))
                return -EINVAL;
 
+#ifndef XEN
        return iosapic_init(iosapic->address, iosapic->global_irq_base);
+#else
+       return iosapic_init(iosapic->address, iosapic->global_irq_base,
+                           iosapic->id);
+#endif
 }
 
 static unsigned int __initdata acpi_madt_rev;
diff -r 1a77bb358d7b -r af8eaa3cf782 xen/arch/ia64/linux-xen/iosapic.c
--- a/xen/arch/ia64/linux-xen/iosapic.c Fri Oct 10 11:57:23 2008 +0900
+++ b/xen/arch/ia64/linux-xen/iosapic.c Fri Oct 10 11:58:03 2008 +0900
@@ -128,6 +128,7 @@ static struct iosapic_intr_info {
        unsigned char   trigger : 1;    /* trigger mode (see iosapic.h) */
 } iosapic_intr_info[IA64_NUM_VECTORS];
 
+#ifndef XEN
 static struct iosapic {
        char __iomem    *addr;          /* base address of IOSAPIC */
        unsigned int    gsi_base;       /* first GSI assigned to this IOSAPIC */
@@ -137,6 +138,9 @@ static struct iosapic {
        unsigned short  node;           /* numa node association via pxm */
 #endif
 } iosapic_lists[NR_IOSAPICS];
+#else
+struct iosapic iosapic_lists[NR_IOSAPICS];
+#endif
 
 static unsigned char pcat_compat __devinitdata;        /* 8259 compatibility 
flag */
 
@@ -1035,7 +1039,11 @@ iosapic_check_gsi_range (unsigned int gs
 }
 
 int __devinit
+#ifndef XEN
 iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
+#else  
+iosapic_init (unsigned long phys_addr, unsigned int gsi_base, unsigned int id)
+#endif
 {
        int num_rte, err, index;
        unsigned int isa_irq, ver;
@@ -1064,6 +1072,9 @@ iosapic_init (unsigned long phys_addr, u
                iosapic_lists[index].addr = addr;
                iosapic_lists[index].gsi_base = gsi_base;
                iosapic_lists[index].num_rte = num_rte;
+#ifdef XEN
+               iosapic_lists[index].id = id;
+#endif
 #ifdef CONFIG_NUMA
                iosapic_lists[index].node = MAX_NUMNODES;
 #endif
diff -r 1a77bb358d7b -r af8eaa3cf782 
xen/include/asm-ia64/linux-xen/asm/iosapic.h
--- a/xen/include/asm-ia64/linux-xen/asm/iosapic.h      Fri Oct 10 11:57:23 
2008 +0900
+++ b/xen/include/asm-ia64/linux-xen/asm/iosapic.h      Fri Oct 10 11:58:03 
2008 +0900
@@ -53,6 +53,34 @@
 
 #define NR_IOSAPICS                    256
 
+#ifdef XEN
+struct iosapic {
+       char __iomem    *addr;      /* base address of IOSAPIC */
+       unsigned int    gsi_base;   /* first GSI assigned to this IOSAPIC */
+       unsigned short  num_rte;    /* number of RTE in this IOSAPIC */
+       int     rtes_inuse; /* # of RTEs in use on this IOSAPIC */
+       unsigned int    id;                     /*  APIC ID */
+#ifdef CONFIG_NUMA
+       unsigned short  node;       /* numa node association via pxm */
+#endif
+};
+
+extern struct iosapic iosapic_lists[NR_IOSAPICS];
+
+static inline int find_iosapic_by_addr(unsigned long addr)
+{
+       int i;
+
+       for (i = 0; i < NR_IOSAPICS; i++) {
+               if ((unsigned long)iosapic_lists[i].addr == addr)
+                       return i;
+       }
+
+       return -1;
+}
+#endif
+
+
 static inline unsigned int iosapic_read(char __iomem *iosapic, unsigned int 
reg)
 {
        writel(reg, iosapic + IOSAPIC_REG_SELECT);
@@ -71,8 +99,13 @@ static inline void iosapic_eoi(char __io
 }
 
 extern void __init iosapic_system_init (int pcat_compat);
+#ifndef        XEN
 extern int __devinit iosapic_init (unsigned long address,
                                    unsigned int gsi_base);
+#else
+extern int __devinit iosapic_init (unsigned long address,
+                                  unsigned int gsi_base, unsigned int id);
+#endif
 #ifdef CONFIG_HOTPLUG
 extern int iosapic_remove (unsigned int gsi_base);
 #else

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