--- zzzz-none-000/linux-3.10.107/arch/s390/include/asm/perf_event.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/s390/include/asm/perf_event.h	2021-02-04 17:41:59.000000000 +0000
@@ -1,16 +1,101 @@
 /*
  * Performance event support - s390 specific definitions.
  *
- * Copyright IBM Corp. 2009, 2012
+ * Copyright IBM Corp. 2009, 2013
  * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
  *	      Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
  */
 
-#include <asm/cpu_mf.h>
+#ifndef _ASM_S390_PERF_EVENT_H
+#define _ASM_S390_PERF_EVENT_H
 
-/* CPU-measurement counter facility */
-#define PERF_CPUM_CF_MAX_CTR		256
+#include <linux/perf_event.h>
+#include <linux/device.h>
+#include <asm/cpu_mf.h>
 
 /* Per-CPU flags for PMU states */
 #define PMU_F_RESERVED			0x1000
 #define PMU_F_ENABLED			0x2000
+#define PMU_F_IN_USE			0x4000
+#define PMU_F_ERR_IBE			0x0100
+#define PMU_F_ERR_LSDA			0x0200
+#define PMU_F_ERR_MASK			(PMU_F_ERR_IBE|PMU_F_ERR_LSDA)
+
+/* Perf defintions for PMU event attributes in sysfs */
+extern __init const struct attribute_group **cpumf_cf_event_group(void);
+extern ssize_t cpumf_events_sysfs_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *page);
+#define EVENT_VAR(_cat, _name)		event_attr_##_cat##_##_name
+#define EVENT_PTR(_cat, _name)		(&EVENT_VAR(_cat, _name).attr.attr)
+
+#define CPUMF_EVENT_ATTR(cat, name, id)			\
+	PMU_EVENT_ATTR(name, EVENT_VAR(cat, name), id, cpumf_events_sysfs_show)
+#define CPUMF_EVENT_PTR(cat, name)	EVENT_PTR(cat, name)
+
+
+/* Perf callbacks */
+struct pt_regs;
+extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
+extern unsigned long perf_misc_flags(struct pt_regs *regs);
+#define perf_misc_flags(regs) perf_misc_flags(regs)
+
+/* Perf pt_regs extension for sample-data-entry indicators */
+struct perf_sf_sde_regs {
+	unsigned char in_guest:1;	  /* guest sample */
+	unsigned long reserved:63;	  /* reserved */
+};
+
+/* Perf PMU definitions for the counter facility */
+#define PERF_CPUM_CF_MAX_CTR		256
+
+/* Perf PMU definitions for the sampling facility */
+#define PERF_CPUM_SF_MAX_CTR		2
+#define PERF_EVENT_CPUM_SF		0xB0000UL /* Event: Basic-sampling */
+#define PERF_EVENT_CPUM_SF_DIAG		0xBD000UL /* Event: Combined-sampling */
+#define PERF_CPUM_SF_BASIC_MODE		0x0001	  /* Basic-sampling flag */
+#define PERF_CPUM_SF_DIAG_MODE		0x0002	  /* Diagnostic-sampling flag */
+#define PERF_CPUM_SF_MODE_MASK		(PERF_CPUM_SF_BASIC_MODE| \
+					 PERF_CPUM_SF_DIAG_MODE)
+#define PERF_CPUM_SF_FULL_BLOCKS	0x0004	  /* Process full SDBs only */
+
+#define REG_NONE		0
+#define REG_OVERFLOW		1
+#define OVERFLOW_REG(hwc)	((hwc)->extra_reg.config)
+#define SFB_ALLOC_REG(hwc)	((hwc)->extra_reg.alloc)
+#define RAWSAMPLE_REG(hwc)	((hwc)->config)
+#define TEAR_REG(hwc)		((hwc)->last_tag)
+#define SAMPL_RATE(hwc)		((hwc)->event_base)
+#define SAMPL_FLAGS(hwc)	((hwc)->config_base)
+#define SAMPL_DIAG_MODE(hwc)	(SAMPL_FLAGS(hwc) & PERF_CPUM_SF_DIAG_MODE)
+#define SDB_FULL_BLOCKS(hwc)	(SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FULL_BLOCKS)
+
+/* Structure for sampling data entries to be passed as perf raw sample data
+ * to user space.  Note that raw sample data must be aligned and, thus, might
+ * be padded with zeros.
+ */
+struct sf_raw_sample {
+#define SF_RAW_SAMPLE_BASIC	PERF_CPUM_SF_BASIC_MODE
+#define SF_RAW_SAMPLE_DIAG	PERF_CPUM_SF_DIAG_MODE
+	u64			format;
+	u32			 size;	  /* Size of sf_raw_sample */
+	u16			bsdes;	  /* Basic-sampling data entry size */
+	u16			dsdes;	  /* Diagnostic-sampling data entry size */
+	struct hws_basic_entry	basic;	  /* Basic-sampling data entry */
+	struct hws_diag_entry	 diag;	  /* Diagnostic-sampling data entry */
+	u8		    padding[];	  /* Padding to next multiple of 8 */
+} __packed;
+
+/* Perf hardware reserve and release functions */
+#ifdef CONFIG_PERF_EVENTS
+int perf_reserve_sampling(void);
+void perf_release_sampling(void);
+#else /* CONFIG_PERF_EVENTS */
+static inline int perf_reserve_sampling(void)
+{
+	return 0;
+}
+static inline void perf_release_sampling(void) {}
+#endif /* CONFIG_PERF_EVENTS */
+
+#endif /* _ASM_S390_PERF_EVENT_H */