--- a/cp/include/channel.h	Sat May 14 12:49:52 2011 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,370 +0,0 @@
-/*
- * (C) Copyright 2007-2010  Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
- *
- * This file is released under the GPLv2.  See the COPYING file for more
- * details.
- */
-
-#ifndef __CHANNEL_H
-#define __CHANNEL_H
-
-/*
- * We only care about format-1 CCWs
- */
-struct ccw {
-	u8 cmd;			/* Command code */
-	u8 flags;		/* Flags */
-	u16 count;		/* Count */
-	u32 addr;		/* Data Address */
-} __attribute__((packed,aligned(8)));
-
-#define CCW0_ADDR(c)	((((u64)((c)->addr_hi)) << 16) | (((u64)((c)->addr_lo))))
-
-struct ccw0 {
-	u8 cmd;			/* Command code */
-	u8 addr_hi;		/* Data Address (bits 8-15) */
-	u16 addr_lo;		/* Data Address (bits 16-31) */
-	u8 flags;		/* Flags */
-	u8 _res0;
-	u16 count;		/* Count */
-} __attribute__((packed,aligned(8)));
-
-#define CCW_CMD_INVAL		0x00
-#define CCW_CMD_IPL_READ	0x02
-#define CCW_CMD_NOP		0x03
-#define CCW_CMD_BASIC_SENSE	0x04
-#define CCW_CMD_SENSE_ID	0xe4
-#define CCW_CMD_TIC		0x08
-
-#define IS_CCW_WRITE(op)	(((op)&0x03)==0x01)
-#define IS_CCW_READ(op)		(((op)&0x03)==0x02)
-#define IS_CCW_CONTROL(op)	(((op)&0x03)==0x03)
-
-#define CCW_FLAG_CD		0x80	/* Chain-Data */
-#define CCW_FLAG_CC		0x40	/* Chain-Command */
-#define CCW_FLAG_SLI		0x20	/* Suppress-Length-Indication */
-#define CCW_FLAG_SKP		0x10	/* Skip */
-#define CCW_FLAG_PCI		0x08	/* Program-Controlled-Interruption */
-#define CCW_FLAG_IDA		0x04	/* Indirect-Data-Address */
-#define CCW_FLAG_S		0x02	/* Suspend */
-#define CCW_FLAG_MIDA		0x01	/* Modified-Indirect-Data-Address */
-
-static inline void ccw0_to_ccw1(struct ccw *out, struct ccw0 *in)
-{
-	/* 0x08 is TIC; format-0 CCWs allow upper nibble to be non-zero */
-	out->cmd	= ((in->cmd & 0x0f) == CCW_CMD_TIC) ?
-				CCW_CMD_TIC : in->cmd;
-	out->flags	= in->flags;
-	out->count	= in->count;
-	out->addr	= CCW0_ADDR(in);
-}
-
-/*
- * ORB
- */
-struct orb {
-	/* word 0 */
-	u32 param;		/* Interruption Parameter */
-
-	/* word 1 */
-	u8 key:4,		/* Subchannel Key */
-	   s:1,			/* Suspend */
-	   c:1,			/* Streaming-Mode Control */
-	   m:1,			/* Modification Control */
-	   y:1;			/* Synchronization Control */
-	u8 f:1,			/* Format Control */
-	   p:1,			/* Prefetch Control */
-	   i:1,			/* Initial-Status-Interruption Control */
-	   a:1,			/* Address-Limit-Checking control */
-	   u:1,			/* Suppress-Suspend-Interruption Control */
-	   b:1,			/* Channel-Program Type Control */
-	   h:1,			/* Format-2-IDAW Control */
-	   t:1;			/* 2K-IDAW Control */
-	u8 lpm;			/* Logical-Path Mask */
-	u8 l:1,			/* Incorrect-Length-Suppression Mode */
-	   d:1,			/* Modified-CCW-Indirect-Data-Addressing Control */
-	   __zero1:5,
-	   x:1;			/* ORB-Extension Control */
-
-	/* word 2 */
-	u32 addr;		/* Channel-Program Address */
-
-	/* word 3 */
-	u8 css_prio;		/* Channel-Subsystem Priority */
-	u8 __reserved1;
-	u8 cu_prio;		/* Control-Unit Priority */
-	u8 __reserved2;
-
-	/* word 4 - 7 */
-	u32 __reserved3;
-	u32 __reserved4;
-	u32 __reserved5;
-	u32 __reserved6;
-} __attribute__((packed,aligned(4)));
-
-enum SCSW_FC {
-	FC_CLEAR	= 0x1,
-	FC_HALT		= 0x2,
-	FC_START	= 0x4,
-};
-
-enum SCSW_AC {
-	AC_RESUME       = 0x40,
-	AC_START        = 0x20,
-	AC_HALT         = 0x10,
-	AC_CLEAR        = 0x08,
-	AC_SCH_ACT      = 0x04,
-	AC_DEV_ACT      = 0x02,
-	AC_SUSP         = 0x01,
-};
-
-enum SCSW_SC {
-	SC_STATUS	= 0x01,
-	SC_SECONDARY	= 0x02,
-	SC_PRIMARY	= 0x04,
-	SC_INTERMED	= 0x08,
-	SC_ALERT	= 0x10,
-};
-
-struct scsw {
-	/* word 0 */
-	u16 key:4,		/* Subchannel key */
-	    s:1,		/* Suspend control */
-	    l:1,		/* ESW format */
-	    cc:2,		/* Deferred condition code */
-	    f:1,		/* Format */
-	    p:1,		/* Prefetch */
-	    i:1,		/* Initial-status interruption control */
-	    a:1,		/* Address-limit-checking control */
-	    u:1,		/* Supress-suspended interruption */
-	    z:1,		/* Zero condition code */
-	    e:1,		/* Extended control */
-	    n:1;		/* Path no operational */
-	u16 __zero:1,
-	    fc:3,		/* Function control */
-	    ac:7,		/* Activity control */
-	    sc:5;		/* Status control */
-
-	/* word 1 */
-	u32 addr;		/* CCW Address */
-
-	/* word 2 */
-	u8 dev_status;		/* Device status */
-	u8 sch_status;		/* Subchannel status */
-	u16 count;		/* Count */
-} __attribute__((packed));
-
-/* needed by IRB */
-struct irb_ext_status {
-	/* TODO: not implemented */
-	u32 w0, w1, w2, w3, w4;
-} __attribute__((packed));
-
-/* needed by IRB */
-struct irb_ext_control {
-	/* TODO: not implemented */
-	u32 w0, w1, w2, w3, w4, w5, w6, w7;
-} __attribute__((packed));
-
-/* needed by IRB */
-struct irb_ext_measurement {
-	/* TODO: not implemented */
-	u32 w0, w1, w2, w3, w4, w5, w6, w7;
-} __attribute__((packed));
-
-struct irb {
-	struct scsw scsw;			/* Subchannel-Status */
-	struct irb_ext_status ext_status;	/* Extended-Status */
-	struct irb_ext_control ext_control;	/* Extended-Control */
-	struct irb_ext_measurement ext_measure;	/* Extended-Measurement */
-} __attribute__((packed,aligned(4)));
-
-/* Path Management Control Word */
-struct pmcw {
-	/* word 0 */
-	u32 interrupt_param;	/* Interruption Parameter */
-
-	/* word 1*/
-	u8 __zero1:2,
-	   isc:3,		/* I/O-Interruption-Subclass Code */
-	   __zero2:3;
-	u8 e:1,			/* Enabled */
-	   lm:2,		/* Limit Mode */
-	   mm:2,		/* Measurement-Mode Enable */
-	   d:1,			/* Multipath Mode */
-	   t:1,			/* Timing Facility */
-	   v:1;			/* Device Number Valid */
-	u16 dev_num;		/* Device Number */
-
-	/* word 2 */
-	u8 lpm;			/* Logical-Path Mask */
-	u8 pnom;		/* Path-Not-Operational Mask */
-	u8 lpum;		/* Last-Path-Used Mask */
-	u8 pim;			/* Path-Installed Mask */
-
-	/* word 3 */
-	u16 mbi;		/* Measurement-Block Index */
-	u8 pom;			/* Path-Operational Mask */
-	u8 pam;			/* Path-Available Mask */
-
-	/* word 4 & 5 */
-	u8 chpid[8];		/* Channel-Path Identifiers */
-
-	/* word 6 */
-	u16 __zero3;
-	u16 __zero4:13,
-	    f:1,		/* Measurement Block Format Control */
-	    x:1,		/* Extended Measurement Word Mode Enable */
-	    s:1;		/* Concurrent Sense */
-};
-
-/* needed by schib */
-struct schib_measurement_block {
-	/* TODO: not implemented */
-	u32 w0, w1;
-};
-
-struct schib {
-	struct pmcw pmcw;		/* Path Management Control Word */
-	struct scsw scsw;		/* Subchannel Status Word */
-	union {
-		struct schib_measurement_block measure_block;
-	};
-	u32 model_dep_area;
-} __attribute__((packed,aligned(4)));
-
-struct senseid_struct {
-	u8 __reserved;
-	u16 cu_type;
-	u8 cu_model;
-	u16 dev_type;
-	u8 dev_model;
-} __attribute__((packed));
-
-enum {
-	SC_STATUS_ATTN = 0x80, /* Attention */
-	SC_STATUS_MOD  = 0x40, /* Status Modifier */
-	SC_STATUS_CUE  = 0x20, /* Control-Unit End */
-	SC_STATUS_BUSY = 0x10, /* Busy */
-	SC_STATUS_CE   = 0x08, /* Channel End */
-	SC_STATUS_DE   = 0x04, /* Device End */
-	SC_STATUS_UC   = 0x02, /* Unit-check */
-	SC_STATUS_UE   = 0x01, /* Unit-exception */
-};
-
-enum {
-	SC_PROG_CI  = 0x80, /* Program-Controlled Interruption */
-	SC_INC_LEN  = 0x40, /* Incorrect Length */
-	SC_PROG_CHK = 0x20, /* Program Check */
-	SC_PROT_CHK = 0x10, /* Protection Check */
-	SC_CHD_CHK  = 0x08, /* Channel-Data Check */
-	SC_CHC_CHK  = 0x04, /* Channel-Control Check */
-	SC_IC_CHK   = 0x02, /* Interface-Control Check */
-	SC_CHAIN_CHK= 0x01, /* Chaining Check */
-};
-
-enum {
-	SENSE_CMDREJ = 0x00,
-};
-
-static inline int store_sch(u32 sch, struct schib *schib)
-{
-	int cc;
-
-	asm volatile(
-		"lr	%%r1,%2\n"
-		"stsch	%1\n"
-		"ipm	%0\n"
-		"srl	%0,28\n"
-		: /* output */
-		  "=d" (cc),
-		  "=Q" (*schib)
-		: /* input */
-		  "d" (sch)
-		: /* clobbered */
-		  "cc", "r1", "memory"
-	);
-
-	if (cc == 3)
-		return -EINVAL;
-	return 0;
-}
-
-static inline int modify_sch(u32 sch, struct schib *schib)
-{
-	int cc;
-
-	asm volatile(
-		"lr	%%r1,%1\n"
-		"msch	0(%2)\n"
-		"ipm	%0\n"
-		"srl	%0,28\n"
-		: /* output */
-		  "=d" (cc)
-		: /* input */
-		  "d" (sch),
-		  "a" (schib)
-		: /* clobbered */
-		  "cc", "r1"
-	);
-
-	if (cc == 1 || cc == 2)
-		return -EBUSY;
-	if (cc == 3)
-		return -EINVAL;
-	return 0;
-}
-
-static inline int start_sch(u32 sch, struct orb *orb)
-{
-	int cc;
-
-	asm volatile(
-		"	lr	%%r1,%1\n"
-		"	ssch	0(%2)\n"
-		"	ipm	%0\n"
-		"	srl	%0,28\n"
-		: /* output */
-		  "=d" (cc)
-		: /* input */
-		  "d" (sch),
-		  "a" (orb)
-		: /* clobbered */
-		  "cc", "r1"
-	);
-
-	if (cc == 1 || cc == 2)
-		return -EBUSY;
-	if (cc == 3)
-		return -EINVAL;
-
-	return 0;
-}
-
-static inline int test_sch(u32 sch, struct irb *irb)
-{
-	int cc;
-
-	asm volatile(
-		"	lr	%%r1,%1\n"
-		"	tsch	0(%2)\n"
-		"	ipm	%0\n"
-		"	srl	%0,28\n"
-	: /* output */
-	  "=d" (cc)
-	: /* input */
-	  "d" (sch),
-	  "a" (irb)
-	: /* clobbered */
-	  "cc", "r1"
-	);
-
-	if (cc == 3)
-		return -EINVAL;
-
-	return 0;
-}
-
-extern void scan_devices(void);
-
-#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/channel.h	Sat May 14 12:50:30 2011 -0400
@@ -0,0 +1,370 @@
+/*
+ * (C) Copyright 2007-2011  Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
+ *
+ * This file is released under the GPLv2.  See the COPYING file for more
+ * details.
+ */
+
+#ifndef __CHANNEL_H
+#define __CHANNEL_H
+
+#include <errno.h>
+
+/*
+ * We only care about format-1 CCWs
+ */
+struct ccw {
+	u8 cmd;			/* Command code */
+	u8 flags;		/* Flags */
+	u16 count;		/* Count */
+	u32 addr;		/* Data Address */
+} __attribute__((packed,aligned(8)));
+
+#define CCW0_ADDR(c)	((((u64)((c)->addr_hi)) << 16) | (((u64)((c)->addr_lo))))
+
+struct ccw0 {
+	u8 cmd;			/* Command code */
+	u8 addr_hi;		/* Data Address (bits 8-15) */
+	u16 addr_lo;		/* Data Address (bits 16-31) */
+	u8 flags;		/* Flags */
+	u8 _res0;
+	u16 count;		/* Count */
+} __attribute__((packed,aligned(8)));
+
+#define CCW_CMD_INVAL		0x00
+#define CCW_CMD_IPL_READ	0x02
+#define CCW_CMD_NOP		0x03
+#define CCW_CMD_BASIC_SENSE	0x04
+#define CCW_CMD_SENSE_ID	0xe4
+#define CCW_CMD_TIC		0x08
+
+#define IS_CCW_WRITE(op)	(((op)&0x03)==0x01)
+#define IS_CCW_READ(op)		(((op)&0x03)==0x02)
+#define IS_CCW_CONTROL(op)	(((op)&0x03)==0x03)
+
+#define CCW_FLAG_CD		0x80	/* Chain-Data */
+#define CCW_FLAG_CC		0x40	/* Chain-Command */
+#define CCW_FLAG_SLI		0x20	/* Suppress-Length-Indication */
+#define CCW_FLAG_SKP		0x10	/* Skip */
+#define CCW_FLAG_PCI		0x08	/* Program-Controlled-Interruption */
+#define CCW_FLAG_IDA		0x04	/* Indirect-Data-Address */
+#define CCW_FLAG_S		0x02	/* Suspend */
+#define CCW_FLAG_MIDA		0x01	/* Modified-Indirect-Data-Address */
+
+static inline void ccw0_to_ccw1(struct ccw *out, struct ccw0 *in)
+{
+	/* 0x08 is TIC; format-0 CCWs allow upper nibble to be non-zero */
+	out->cmd	= ((in->cmd & 0x0f) == CCW_CMD_TIC) ?
+				CCW_CMD_TIC : in->cmd;
+	out->flags	= in->flags;
+	out->count	= in->count;
+	out->addr	= CCW0_ADDR(in);
+}
+
+/*
+ * ORB
+ */
+struct orb {
+	/* word 0 */
+	u32 param;		/* Interruption Parameter */
+
+	/* word 1 */
+	u8 key:4,		/* Subchannel Key */
+	   s:1,			/* Suspend */
+	   c:1,			/* Streaming-Mode Control */
+	   m:1,			/* Modification Control */
+	   y:1;			/* Synchronization Control */
+	u8 f:1,			/* Format Control */
+	   p:1,			/* Prefetch Control */
+	   i:1,			/* Initial-Status-Interruption Control */
+	   a:1,			/* Address-Limit-Checking control */
+	   u:1,			/* Suppress-Suspend-Interruption Control */
+	   b:1,			/* Channel-Program Type Control */
+	   h:1,			/* Format-2-IDAW Control */
+	   t:1;			/* 2K-IDAW Control */
+	u8 lpm;			/* Logical-Path Mask */
+	u8 l:1,			/* Incorrect-Length-Suppression Mode */
+	   d:1,			/* Modified-CCW-Indirect-Data-Addressing Control */
+	   __zero1:5,
+	   x:1;			/* ORB-Extension Control */
+
+	/* word 2 */
+	u32 addr;		/* Channel-Program Address */
+
+	/* word 3 */
+	u8 css_prio;		/* Channel-Subsystem Priority */
+	u8 __reserved1;
+	u8 cu_prio;		/* Control-Unit Priority */
+	u8 __reserved2;
+
+	/* word 4 - 7 */
+	u32 __reserved3;
+	u32 __reserved4;
+	u32 __reserved5;
+	u32 __reserved6;
+} __attribute__((packed,aligned(4)));
+
+enum SCSW_FC {
+	FC_CLEAR	= 0x1,
+	FC_HALT		= 0x2,
+	FC_START	= 0x4,
+};
+
+enum SCSW_AC {
+	AC_RESUME       = 0x40,
+	AC_START        = 0x20,
+	AC_HALT         = 0x10,
+	AC_CLEAR        = 0x08,
+	AC_SCH_ACT      = 0x04,
+	AC_DEV_ACT      = 0x02,
+	AC_SUSP         = 0x01,
+};
+
+enum SCSW_SC {
+	SC_STATUS	= 0x01,
+	SC_SECONDARY	= 0x02,
+	SC_PRIMARY	= 0x04,
+	SC_INTERMED	= 0x08,
+	SC_ALERT	= 0x10,
+};
+
+struct scsw {
+	/* word 0 */
+	u16 key:4,		/* Subchannel key */
+	    s:1,		/* Suspend control */
+	    l:1,		/* ESW format */
+	    cc:2,		/* Deferred condition code */
+	    f:1,		/* Format */
+	    p:1,		/* Prefetch */
+	    i:1,		/* Initial-status interruption control */
+	    a:1,		/* Address-limit-checking control */
+	    u:1,		/* Supress-suspended interruption */
+	    z:1,		/* Zero condition code */
+	    e:1,		/* Extended control */
+	    n:1;		/* Path no operational */
+	u16 __zero:1,
+	    fc:3,		/* Function control */
+	    ac:7,		/* Activity control */
+	    sc:5;		/* Status control */
+
+	/* word 1 */
+	u32 addr;		/* CCW Address */
+
+	/* word 2 */
+	u8 dev_status;		/* Device status */
+	u8 sch_status;		/* Subchannel status */
+	u16 count;		/* Count */
+} __attribute__((packed));
+
+/* needed by IRB */
+struct irb_ext_status {
+	/* TODO: not implemented */
+	u32 w0, w1, w2, w3, w4;
+} __attribute__((packed));
+
+/* needed by IRB */
+struct irb_ext_control {
+	/* TODO: not implemented */
+	u32 w0, w1, w2, w3, w4, w5, w6, w7;
+} __attribute__((packed));
+
+/* needed by IRB */
+struct irb_ext_measurement {
+	/* TODO: not implemented */
+	u32 w0, w1, w2, w3, w4, w5, w6, w7;
+} __attribute__((packed));
+
+struct irb {
+	struct scsw scsw;			/* Subchannel-Status */
+	struct irb_ext_status ext_status;	/* Extended-Status */
+	struct irb_ext_control ext_control;	/* Extended-Control */
+	struct irb_ext_measurement ext_measure;	/* Extended-Measurement */
+} __attribute__((packed,aligned(4)));
+
+/* Path Management Control Word */
+struct pmcw {
+	/* word 0 */
+	u32 interrupt_param;	/* Interruption Parameter */
+
+	/* word 1*/
+	u8 __zero1:2,
+	   isc:3,		/* I/O-Interruption-Subclass Code */
+	   __zero2:3;
+	u8 e:1,			/* Enabled */
+	   lm:2,		/* Limit Mode */
+	   mm:2,		/* Measurement-Mode Enable */
+	   d:1,			/* Multipath Mode */
+	   t:1,			/* Timing Facility */
+	   v:1;			/* Device Number Valid */
+	u16 dev_num;		/* Device Number */
+
+	/* word 2 */
+	u8 lpm;			/* Logical-Path Mask */
+	u8 pnom;		/* Path-Not-Operational Mask */
+	u8 lpum;		/* Last-Path-Used Mask */
+	u8 pim;			/* Path-Installed Mask */
+
+	/* word 3 */
+	u16 mbi;		/* Measurement-Block Index */
+	u8 pom;			/* Path-Operational Mask */
+	u8 pam;			/* Path-Available Mask */
+
+	/* word 4 & 5 */
+	u8 chpid[8];		/* Channel-Path Identifiers */
+
+	/* word 6 */
+	u16 __zero3;
+	u16 __zero4:13,
+	    f:1,		/* Measurement Block Format Control */
+	    x:1,		/* Extended Measurement Word Mode Enable */
+	    s:1;		/* Concurrent Sense */
+};
+
+/* needed by schib */
+struct schib_measurement_block {
+	/* TODO: not implemented */
+	u32 w0, w1;
+};
+
+struct schib {
+	struct pmcw pmcw;		/* Path Management Control Word */
+	struct scsw scsw;		/* Subchannel Status Word */
+	union {
+		struct schib_measurement_block measure_block;
+	};
+	u32 model_dep_area;
+} __attribute__((packed,aligned(4)));
+
+struct senseid_struct {
+	u8 __reserved;
+	u16 cu_type;
+	u8 cu_model;
+	u16 dev_type;
+	u8 dev_model;
+} __attribute__((packed));
+
+enum {
+	SC_STATUS_ATTN = 0x80, /* Attention */
+	SC_STATUS_MOD  = 0x40, /* Status Modifier */
+	SC_STATUS_CUE  = 0x20, /* Control-Unit End */
+	SC_STATUS_BUSY = 0x10, /* Busy */
+	SC_STATUS_CE   = 0x08, /* Channel End */
+	SC_STATUS_DE   = 0x04, /* Device End */
+	SC_STATUS_UC   = 0x02, /* Unit-check */
+	SC_STATUS_UE   = 0x01, /* Unit-exception */
+};
+
+enum {
+	SC_PROG_CI  = 0x80, /* Program-Controlled Interruption */
+	SC_INC_LEN  = 0x40, /* Incorrect Length */
+	SC_PROG_CHK = 0x20, /* Program Check */
+	SC_PROT_CHK = 0x10, /* Protection Check */
+	SC_CHD_CHK  = 0x08, /* Channel-Data Check */
+	SC_CHC_CHK  = 0x04, /* Channel-Control Check */
+	SC_IC_CHK   = 0x02, /* Interface-Control Check */
+	SC_CHAIN_CHK= 0x01, /* Chaining Check */
+};
+
+enum {
+	SENSE_CMDREJ = 0x00,
+};
+
+static inline int store_sch(u32 sch, struct schib *schib)
+{
+	int cc;
+
+	asm volatile(
+		"lr	%%r1,%2\n"
+		"stsch	%1\n"
+		"ipm	%0\n"
+		"srl	%0,28\n"
+		: /* output */
+		  "=d" (cc),
+		  "=Q" (*schib)
+		: /* input */
+		  "d" (sch)
+		: /* clobbered */
+		  "cc", "r1", "memory"
+	);
+
+	if (cc == 3)
+		return -EINVAL;
+	return 0;
+}
+
+static inline int modify_sch(u32 sch, struct schib *schib)
+{
+	int cc;
+
+	asm volatile(
+		"lr	%%r1,%1\n"
+		"msch	0(%2)\n"
+		"ipm	%0\n"
+		"srl	%0,28\n"
+		: /* output */
+		  "=d" (cc)
+		: /* input */
+		  "d" (sch),
+		  "a" (schib)
+		: /* clobbered */
+		  "cc", "r1"
+	);
+
+	if (cc == 1 || cc == 2)
+		return -EBUSY;
+	if (cc == 3)
+		return -EINVAL;
+	return 0;
+}
+
+static inline int start_sch(u32 sch, struct orb *orb)
+{
+	int cc;
+
+	asm volatile(
+		"	lr	%%r1,%1\n"
+		"	ssch	0(%2)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: /* output */
+		  "=d" (cc)
+		: /* input */
+		  "d" (sch),
+		  "a" (orb)
+		: /* clobbered */
+		  "cc", "r1"
+	);
+
+	if (cc == 1 || cc == 2)
+		return -EBUSY;
+	if (cc == 3)
+		return -EINVAL;
+
+	return 0;
+}
+
+static inline int test_sch(u32 sch, struct irb *irb)
+{
+	int cc;
+
+	asm volatile(
+		"	lr	%%r1,%1\n"
+		"	tsch	0(%2)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+	: /* output */
+	  "=d" (cc)
+	: /* input */
+	  "d" (sch),
+	  "a" (irb)
+	: /* clobbered */
+	  "cc", "r1"
+	);
+
+	if (cc == 3)
+		return -EINVAL;
+
+	return 0;
+}
+
+#endif