Initial file dump from open source releaseHEADmaster

1 files changed, 168 insertions, 0 deletions

diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
new file mode 100644
index 00000000..e7ef2a68
--- /dev/null
+++ b/drivers/s390/cio/chsc.h
@@ -0,0 +1,168 @@
+#ifndef S390_CHSC_H
+#define S390_CHSC_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <asm/css_chars.h>
+#include <asm/chpid.h>
+#include <asm/chsc.h>
+#include <asm/schid.h>
+
+#define CHSC_SDA_OC_MSS   0x2
+
+struct chsc_header {
+	u16 length;
+	u16 code;
+} __attribute__ ((packed));
+
+#define NR_MEASUREMENT_CHARS 5
+struct cmg_chars {
+	u32 values[NR_MEASUREMENT_CHARS];
+} __attribute__ ((packed));
+
+#define NR_MEASUREMENT_ENTRIES 8
+struct cmg_entry {
+	u32 values[NR_MEASUREMENT_ENTRIES];
+} __attribute__ ((packed));
+
+struct channel_path_desc {
+	u8 flags;
+	u8 lsn;
+	u8 desc;
+	u8 chpid;
+	u8 swla;
+	u8 zeroes;
+	u8 chla;
+	u8 chpp;
+} __attribute__ ((packed));
+
+struct channel_path_desc_fmt1 {
+	u8 flags;
+	u8 lsn;
+	u8 desc;
+	u8 chpid;
+	u32:24;
+	u8 chpp;
+	u32 unused[2];
+	u16 chid;
+	u32:16;
+	u16 mdc;
+	u16:13;
+	u8 r:1;
+	u8 s:1;
+	u8 f:1;
+	u32 zeros[2];
+} __attribute__ ((packed));
+
+struct channel_path;
+
+struct css_chsc_char {
+	u64 res;
+	u64 : 20;
+	u32 secm : 1; /* bit 84 */
+	u32 : 1;
+	u32 scmc : 1; /* bit 86 */
+	u32 : 20;
+	u32 scssc : 1;  /* bit 107 */
+	u32 scsscf : 1; /* bit 108 */
+	u32 : 19;
+}__attribute__((packed));
+
+extern struct css_chsc_char css_chsc_characteristics;
+
+struct chsc_ssd_info {
+	u8 path_mask;
+	u8 fla_valid_mask;
+	struct chp_id chpid[8];
+	u16 fla[8];
+};
+
+struct chsc_scpd {
+	struct chsc_header request;
+	u32:2;
+	u32 m:1;
+	u32 c:1;
+	u32 fmt:4;
+	u32 cssid:8;
+	u32:4;
+	u32 rfmt:4;
+	u32 first_chpid:8;
+	u32:24;
+	u32 last_chpid:8;
+	u32 zeroes1;
+	struct chsc_header response;
+	u8 data[PAGE_SIZE - 20];
+} __attribute__ ((packed));
+
+
+extern int chsc_get_ssd_info(struct subchannel_id schid,
+			     struct chsc_ssd_info *ssd);
+extern int chsc_determine_css_characteristics(void);
+extern int chsc_init(void);
+extern void chsc_init_cleanup(void);
+
+extern int chsc_enable_facility(int);
+struct channel_subsystem;
+extern int chsc_secm(struct channel_subsystem *, int);
+int __chsc_do_secm(struct channel_subsystem *css, int enable);
+
+int chsc_chp_vary(struct chp_id chpid, int on);
+int chsc_determine_channel_path_desc(struct chp_id chpid, int fmt, int rfmt,
+				     int c, int m, void *page);
+int chsc_determine_base_channel_path_desc(struct chp_id chpid,
+					  struct channel_path_desc *desc);
+int chsc_determine_fmt1_channel_path_desc(struct chp_id chpid,
+					  struct channel_path_desc_fmt1 *desc);
+void chsc_chp_online(struct chp_id chpid);
+void chsc_chp_offline(struct chp_id chpid);
+int chsc_get_channel_measurement_chars(struct channel_path *chp);
+
+int chsc_error_from_response(int response);
+
+int chsc_siosl(struct subchannel_id schid);
+
+/* Functions and definitions to query storage-class memory. */
+struct sale {
+	u64 sa;
+	u32 p:4;
+	u32 op_state:4;
+	u32 data_state:4;
+	u32 rank:4;
+	u32 r:1;
+	u32:7;
+	u32 rid:8;
+	u32:32;
+} __packed;
+
+struct chsc_scm_info {
+	struct chsc_header request;
+	u32:32;
+	u64 reqtok;
+	u32 reserved1[4];
+	struct chsc_header response;
+	u64:56;
+	u8 rq;
+	u32 mbc;
+	u64 msa;
+	u16 is;
+	u16 mmc;
+	u32 mci;
+	u64 nr_scm_ini;
+	u64 nr_scm_unini;
+	u32 reserved2[10];
+	u64 restok;
+	struct sale scmal[248];
+} __packed;
+
+int chsc_scm_info(struct chsc_scm_info *scm_area, u64 token);
+
+#ifdef CONFIG_SCM_BUS
+int scm_update_information(void);
+int scm_process_availability_information(void);
+#else /* CONFIG_SCM_BUS */
+static inline int scm_update_information(void) { return 0; }
+static inline int scm_process_availability_information(void) { return 0; }
+#endif /* CONFIG_SCM_BUS */
+
+
+#endif