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authorIsaku Yamahata <yamahata@valinux.co.jp>2008-05-19 22:13:42 +0900
committerTony Luck <tony.luck@intel.com>2008-05-27 15:10:41 -0700
commit33b39e84209b0308b572dce017df7ee9b63f086c (patch)
treee27bb8c44aa70b3172c9be846960baf7dbe98bd4 /include/asm-ia64/iosapic.h
parente51835d58a5abdf82211f36f500f666ca7ef9aee (diff)
[IA64] pvops: add hooks, pv_iosapic_ops, to paravirtualize iosapic.
add hooks to paravirtualize iosapic which is a real hardware resource. On virtualized environment it may be replaced something virtualized friendly. Define pv_iosapic_ops and add the hooks. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64/iosapic.h')
-rw-r--r--include/asm-ia64/iosapic.h18
1 files changed, 16 insertions, 2 deletions
diff --git a/include/asm-ia64/iosapic.h b/include/asm-ia64/iosapic.h
index a3a4288daae..b9c102e15f2 100644
--- a/include/asm-ia64/iosapic.h
+++ b/include/asm-ia64/iosapic.h
@@ -55,13 +55,27 @@
#define NR_IOSAPICS 256
-static inline unsigned int __iosapic_read(char __iomem *iosapic, unsigned int reg)
+#ifdef CONFIG_PARAVIRT_GUEST
+#include <asm/paravirt.h>
+#else
+#define iosapic_pcat_compat_init ia64_native_iosapic_pcat_compat_init
+#define __iosapic_read __ia64_native_iosapic_read
+#define __iosapic_write __ia64_native_iosapic_write
+#define iosapic_get_irq_chip ia64_native_iosapic_get_irq_chip
+#endif
+
+extern void __init ia64_native_iosapic_pcat_compat_init(void);
+extern struct irq_chip *ia64_native_iosapic_get_irq_chip(unsigned long trigger);
+
+static inline unsigned int
+__ia64_native_iosapic_read(char __iomem *iosapic, unsigned int reg)
{
writel(reg, iosapic + IOSAPIC_REG_SELECT);
return readl(iosapic + IOSAPIC_WINDOW);
}
-static inline void __iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
+static inline void
+__ia64_native_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
{
writel(reg, iosapic + IOSAPIC_REG_SELECT);
writel(val, iosapic + IOSAPIC_WINDOW);