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authorDavid Woodhouse <dwmw2@infradead.org>2007-04-27 19:16:19 +0100
committerDavid Woodhouse <dwmw2@infradead.org>2007-04-27 19:16:19 +0100
commitd1da4e50e5d09f02c340927a4fcb7f54202fa033 (patch)
tree7f98317bdd45dbdb7644e9179891c5af6a3a8ef1 /include/asm-s390/chpid.h
parent78ab67da1002d954ea4c3e2b441e2483c41f94e8 (diff)
parenta205752d1ad2d37d6597aaae5a56fc396a770868 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: drivers/mtd/Kconfig Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'include/asm-s390/chpid.h')
-rw-r--r--include/asm-s390/chpid.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/include/asm-s390/chpid.h b/include/asm-s390/chpid.h
new file mode 100644
index 00000000000..b203336fd89
--- /dev/null
+++ b/include/asm-s390/chpid.h
@@ -0,0 +1,53 @@
+/*
+ * 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>
+#include <asm/cio.h>
+
+#define __MAX_CHPID 255
+
+struct chp_id {
+ u8 reserved1;
+ u8 cssid;
+ u8 reserved2;
+ u8 id;
+} __attribute__((packed));
+
+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 /* _ASM_S390_CHPID_H */