Initial import

1 files changed, 52 insertions, 0 deletions

diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
new file mode 100644
index 000000000..7e91c5807
--- /dev/null
+++ b/arch/s390/include/asm/diag.h
@@ -0,0 +1,52 @@
+/*
+ * s390 diagnose functions
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Michael Holzheu <holzheu@de.ibm.com>
+ */
+
+#ifndef _ASM_S390_DIAG_H
+#define _ASM_S390_DIAG_H
+
+/*
+ * Diagnose 10: Release page range
+ */
+static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
+{
+	unsigned long start_addr, end_addr;
+
+	start_addr = start_pfn << PAGE_SHIFT;
+	end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
+
+	asm volatile(
+		"0:	diag	%0,%1,0x10\n"
+		"1:\n"
+		EX_TABLE(0b, 1b)
+		EX_TABLE(1b, 1b)
+		: : "a" (start_addr), "a" (end_addr));
+}
+
+/*
+ * Diagnose 14: Input spool file manipulation
+ */
+extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
+
+/*
+ * Diagnose 210: Get information about a virtual device
+ */
+struct diag210 {
+	u16 vrdcdvno;	/* device number (input) */
+	u16 vrdclen;	/* data block length (input) */
+	u8 vrdcvcla;	/* virtual device class (output) */
+	u8 vrdcvtyp;	/* virtual device type (output) */
+	u8 vrdcvsta;	/* virtual device status (output) */
+	u8 vrdcvfla;	/* virtual device flags (output) */
+	u8 vrdcrccl;	/* real device class (output) */
+	u8 vrdccrty;	/* real device type (output) */
+	u8 vrdccrmd;	/* real device model (output) */
+	u8 vrdccrft;	/* real device feature (output) */
+} __attribute__((packed, aligned(4)));
+
+extern int diag210(struct diag210 *addr);
+
+#endif /* _ASM_S390_DIAG_H */