Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / s390 / char / hmcdrv_cache.h

diff --git a/kernel/drivers/s390/char/hmcdrv_cache.h b/kernel/drivers/s390/char/hmcdrv_cache.h
new file mode 100644 (file)
index 0000000..a14b575
--- /dev/null
+++ b/kernel/drivers/s390/char/hmcdrv_cache.h
@@ -0,0 +1,24 @@
+/*
+ *    SE/HMC Drive (Read) Cache Functions
+ *
+ *    Copyright IBM Corp. 2013
+ *    Author(s): Ralf Hoppe (rhoppe@de.ibm.com)
+ */
+
+#ifndef __HMCDRV_CACHE_H__
+#define __HMCDRV_CACHE_H__
+
+#include <linux/mmzone.h>
+#include "hmcdrv_ftp.h"
+
+#define HMCDRV_CACHE_SIZE_DFLT (MAX_ORDER_NR_PAGES * PAGE_SIZE / 2UL)
+
+typedef ssize_t (*hmcdrv_cache_ftpfunc)(const struct hmcdrv_ftp_cmdspec *ftp,
+                                       size_t *fsize);
+
+ssize_t hmcdrv_cache_cmd(const struct hmcdrv_ftp_cmdspec *ftp,
+                        hmcdrv_cache_ftpfunc func);
+int hmcdrv_cache_startup(size_t cachesize);
+void hmcdrv_cache_shutdown(void);
+
+#endif  /* __HMCDRV_CACHE_H__ */