1 files changed, 144 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/chsc.h b/arch/s390/include/uapi/asm/chsc.h
new file mode 100644
index 000000000..83a574e95
--- /dev/null
+++ b/arch/s390/include/uapi/asm/chsc.h
@@ -0,0 +1,144 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * ioctl interface for /dev/chsc
+ *
+ * Copyright IBM Corp. 2008, 2012
+ * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ */
+
+#ifndef _ASM_CHSC_H
+#define _ASM_CHSC_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#include <asm/chpid.h>
+#include <asm/schid.h>
+
+#define CHSC_SIZE 0x1000
+
+struct chsc_async_header {
+	__u16 length;
+	__u16 code;
+	__u32 cmd_dependend;
+	__u32 key : 4;
+	__u32 : 28;
+	struct subchannel_id sid;
+};
+
+struct chsc_async_area {
+	struct chsc_async_header header;
+	__u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)];
+};
+
+struct chsc_header {
+	__u16 length;
+	__u16 code;
+};
+
+struct chsc_sync_area {
+	struct chsc_header header;
+	__u8 data[CHSC_SIZE - sizeof(struct chsc_header)];
+};
+
+struct chsc_response_struct {
+	__u16 length;
+	__u16 code;
+	__u32 parms;
+	__u8 data[CHSC_SIZE - 2 * sizeof(__u16) - sizeof(__u32)];
+};
+
+struct chsc_chp_cd {
+	struct chp_id chpid;
+	int m;
+	int fmt;
+	struct chsc_response_struct cpcb;
+};
+
+struct chsc_cu_cd {
+	__u16 cun;
+	__u8 cssid;
+	int m;
+	int fmt;
+	struct chsc_response_struct cucb;
+};
+
+struct chsc_sch_cud {
+	struct subchannel_id schid;
+	int fmt;
+	struct chsc_response_struct scub;
+};
+
+struct conf_id {
+	int m;
+	__u8 cssid;
+	__u8 ssid;
+};
+
+struct chsc_conf_info {
+	struct conf_id id;
+	int fmt;
+	struct chsc_response_struct scid;
+};
+
+struct ccl_parm_chpid {
+	int m;
+	struct chp_id chp;
+};
+
+struct ccl_parm_cssids {
+	__u8 f_cssid;
+	__u8 l_cssid;
+};
+
+struct chsc_comp_list {
+	struct {
+		enum {
+			CCL_CU_ON_CHP = 1,
+			CCL_CHP_TYPE_CAP = 2,
+			CCL_CSS_IMG = 4,
+			CCL_CSS_IMG_CONF_CHAR = 5,
+			CCL_IOP_CHP = 6,
+		} ctype;
+		int fmt;
+		struct ccl_parm_chpid chpid;
+		struct ccl_parm_cssids cssids;
+	} req;
+	struct chsc_response_struct sccl;
+};
+
+struct chsc_dcal {
+	struct {
+		enum {
+			DCAL_CSS_IID_PN = 4,
+		} atype;
+		__u32 list_parm[2];
+		int fmt;
+	} req;
+	struct chsc_response_struct sdcal;
+};
+
+struct chsc_cpd_info {
+	struct chp_id chpid;
+	int m;
+	int fmt;
+	int rfmt;
+	int c;
+	struct chsc_response_struct chpdb;
+};
+
+#define CHSC_IOCTL_MAGIC 'c'
+
+#define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area)
+#define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \
+				    struct chsc_chp_cd)
+#define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd)
+#define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud)
+#define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info)
+#define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list)
+#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
+#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
+#define CHSC_START_SYNC _IOWR(CHSC_IOCTL_MAGIC, 0x89, struct chsc_sync_area)
+#define CHSC_ON_CLOSE_SET _IOWR(CHSC_IOCTL_MAGIC, 0x8a, struct chsc_async_area)
+#define CHSC_ON_CLOSE_REMOVE _IO(CHSC_IOCTL_MAGIC, 0x8b)
+
+#endif