[PATCH] PCI: msi abstractions and support for altix
Abstract portions of the MSI core for platforms that do not use standard
APIC interrupt controllers. This is implemented through a new arch-specific
msi setup routine, and a set of msi ops which can be set on a per platform
basis.
Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/asm-ia64/machvec.h b/include/asm-ia64/machvec.h
index 0df72a1..15b545a 100644
--- a/include/asm-ia64/machvec.h
+++ b/include/asm-ia64/machvec.h
@@ -75,6 +75,7 @@
typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
+typedef int ia64_mv_msi_init_t (void);
static inline void
machvec_noop (void)
@@ -153,6 +154,7 @@
# define platform_readl_relaxed ia64_mv.readl_relaxed
# define platform_readq_relaxed ia64_mv.readq_relaxed
# define platform_migrate ia64_mv.migrate
+# define platform_msi_init ia64_mv.msi_init
# endif
/* __attribute__((__aligned__(16))) is required to make size of the
@@ -202,6 +204,7 @@
ia64_mv_readl_relaxed_t *readl_relaxed;
ia64_mv_readq_relaxed_t *readq_relaxed;
ia64_mv_migrate_t *migrate;
+ ia64_mv_msi_init_t *msi_init;
} __attribute__((__aligned__(16))); /* align attrib? see above comment */
#define MACHVEC_INIT(name) \
@@ -247,6 +250,7 @@
platform_readl_relaxed, \
platform_readq_relaxed, \
platform_migrate, \
+ platform_msi_init, \
}
extern struct ia64_machine_vector ia64_mv;
@@ -400,5 +404,8 @@
#ifndef platform_migrate
# define platform_migrate machvec_noop_task
#endif
+#ifndef platform_msi_init
+# define platform_msi_init ((ia64_mv_msi_init_t*)NULL)
+#endif
#endif /* _ASM_IA64_MACHVEC_H */