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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-04 17:15:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-04 17:15:07 -0700
commit5941de8eadc287f3f47b87ce9888734ee07d210b (patch)
tree2f5a8e84c33ae2df61e4e807798a153d6b7f6fbb /arch/s390/include/asm/chpid.h
parentc44df7413fd711bca818111b94cbd7ce5f3600a9 (diff)
parentc6557e7f2b6ae76a44653d38f835174074c42e05 (diff)
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Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] move include/asm-s390 to arch/s390/include/asm
Diffstat (limited to 'arch/s390/include/asm/chpid.h')
-rw-r--r--arch/s390/include/asm/chpid.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/s390/include/asm/chpid.h b/arch/s390/include/asm/chpid.h
new file mode 100644
index 0000000..dfe3c7f
--- /dev/null
+++ b/arch/s390/include/asm/chpid.h
@@ -0,0 +1,56 @@
+/*
+ * drivers/s390/cio/chpid.h
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_CHPID_H
+#define _ASM_S390_CHPID_H _ASM_S390_CHPID_H
+
+#include <linux/string.h>
+#include <asm/types.h>
+
+#define __MAX_CHPID 255
+
+struct chp_id {
+ u8 reserved1;
+ u8 cssid;
+ u8 reserved2;
+ u8 id;
+} __attribute__((packed));
+
+#ifdef __KERNEL__
+#include <asm/cio.h>
+
+static inline void chp_id_init(struct chp_id *chpid)
+{
+ memset(chpid, 0, sizeof(struct chp_id));
+}
+
+static inline int chp_id_is_equal(struct chp_id *a, struct chp_id *b)
+{
+ return (a->id == b->id) && (a->cssid == b->cssid);
+}
+
+static inline void chp_id_next(struct chp_id *chpid)
+{
+ if (chpid->id < __MAX_CHPID)
+ chpid->id++;
+ else {
+ chpid->id = 0;
+ chpid->cssid++;
+ }
+}
+
+static inline int chp_id_is_valid(struct chp_id *chpid)
+{
+ return (chpid->cssid <= __MAX_CSSID);
+}
+
+
+#define chp_id_for_each(c) \
+ for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
+#endif /* __KERNEL */
+
+#endif /* _ASM_S390_CHPID_H */