FM / asm

/usr/src/linux-headers-5.15.0-190/arch/s390/include/asm/

/usr/src/linux-headers-5.15.0-190/arch/s390/include/asm

Name	Size	Mode	Actions
fpu/	-	0755	rm
trace/	-	0755	rm
vdso/	-	0755	rm
airq.h	3421	0644	edit dl rm
alternative-asm.h	3148	0644	edit dl rm
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appldata.h	1593	0644	edit dl rm
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asm-const.h	376	0644	edit dl rm
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cpcmd.h	1135	0644	edit dl rm
cpu.h	549	0644	edit dl rm
cpufeature.h	958	0644	edit dl rm
cputime.h	840	0644	edit dl rm
cpu_mcf.h	3064	0644	edit dl rm
cpu_mf-insn.h	478	0644	edit dl rm
cpu_mf.h	9606	0644	edit dl rm
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Kbuild	253	0644	edit dl rm
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serial.h	147	0644	edit dl rm
setup.h	5156	0644	edit dl rm
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smp.h	1932	0644	edit dl rm
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user.h	3384	0644	edit dl rm
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vdso.h	746	0644	edit dl rm
vga.h	170	0644	edit dl rm
vmalloc.h	90	0644	edit dl rm
vmlinux.lds.h	1167	0644	edit dl rm
vtime.h	718	0644	edit dl rm
vtimer.h	830	0644	edit dl rm
vx-insn.h	13477	0644	edit dl rm
xor.h	454	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/arch/s390/include/asm/cpu_mf.h (9606B)

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * CPU-measurement facilities
 *
 *  Copyright IBM Corp. 2012, 2018
 *  Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
 *	       Jan Glauber <jang@linux.vnet.ibm.com>
 */
#ifndef _ASM_S390_CPU_MF_H
#define _ASM_S390_CPU_MF_H

#include <linux/errno.h>
#include <asm/facility.h>

asm(".include \"asm/cpu_mf-insn.h\"\n");

#define CPU_MF_INT_SF_IAE	(1 << 31)	/* invalid entry address */
#define CPU_MF_INT_SF_ISE	(1 << 30)	/* incorrect SDBT entry */
#define CPU_MF_INT_SF_PRA	(1 << 29)	/* program request alert */
#define CPU_MF_INT_SF_SACA	(1 << 23)	/* sampler auth. change alert */
#define CPU_MF_INT_SF_LSDA	(1 << 22)	/* loss of sample data alert */
#define CPU_MF_INT_CF_MTDA	(1 << 15)	/* loss of MT ctr. data alert */
#define CPU_MF_INT_CF_CACA	(1 <<  7)	/* counter auth. change alert */
#define CPU_MF_INT_CF_LCDA	(1 <<  6)	/* loss of counter data alert */
#define CPU_MF_INT_CF_MASK	(CPU_MF_INT_CF_MTDA|CPU_MF_INT_CF_CACA| \
				 CPU_MF_INT_CF_LCDA)
#define CPU_MF_INT_SF_MASK	(CPU_MF_INT_SF_IAE|CPU_MF_INT_SF_ISE|	\
				 CPU_MF_INT_SF_PRA|CPU_MF_INT_SF_SACA|	\
				 CPU_MF_INT_SF_LSDA)

#define CPU_MF_SF_RIBM_NOTAV	0x1		/* Sampling unavailable */

/* CPU measurement facility support */
static inline int cpum_cf_avail(void)
{
	return test_facility(40) && test_facility(67);
}

static inline int cpum_sf_avail(void)
{
	return test_facility(40) && test_facility(68);
}

struct cpumf_ctr_info {
	u16   cfvn;
	u16   auth_ctl;
	u16   enable_ctl;
	u16   act_ctl;
	u16   max_cpu;
	u16   csvn;
	u16   max_cg;
	u16   reserved1;
	u32   reserved2[12];
} __packed;

/* QUERY SAMPLING INFORMATION block */
struct hws_qsi_info_block {	    /* Bit(s) */
	unsigned int b0_13:14;	    /* 0-13: zeros			 */
	unsigned int as:1;	    /* 14: basic-sampling authorization	 */
	unsigned int ad:1;	    /* 15: diag-sampling authorization	 */
	unsigned int b16_21:6;	    /* 16-21: zeros			 */
	unsigned int es:1;	    /* 22: basic-sampling enable control */
	unsigned int ed:1;	    /* 23: diag-sampling enable control	 */
	unsigned int b24_29:6;	    /* 24-29: zeros			 */
	unsigned int cs:1;	    /* 30: basic-sampling activation control */
	unsigned int cd:1;	    /* 31: diag-sampling activation control */
	unsigned int bsdes:16;	    /* 4-5: size of basic sampling entry */
	unsigned int dsdes:16;	    /* 6-7: size of diagnostic sampling entry */
	unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */
	unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/
	unsigned long tear;	    /* 24-31: TEAR contents		 */
	unsigned long dear;	    /* 32-39: DEAR contents		 */
	unsigned int rsvrd0:24;	    /* 40-42: reserved			 */
	unsigned int ribm:8;	    /* 43: Reserved by IBM		 */
	unsigned int cpu_speed;     /* 44-47: CPU speed			 */
	unsigned long long rsvrd1;  /* 48-55: reserved			 */
	unsigned long long rsvrd2;  /* 56-63: reserved			 */
} __packed;

/* SET SAMPLING CONTROLS request block */
struct hws_lsctl_request_block {
	unsigned int s:1;	    /* 0: maximum buffer indicator	 */
	unsigned int h:1;	    /* 1: part. level reserved for VM use*/
	unsigned long long b2_53:52;/* 2-53: zeros			 */
	unsigned int es:1;	    /* 54: basic-sampling enable control */
	unsigned int ed:1;	    /* 55: diag-sampling enable control	 */
	unsigned int b56_61:6;	    /* 56-61: - zeros			 */
	unsigned int cs:1;	    /* 62: basic-sampling activation control */
	unsigned int cd:1;	    /* 63: diag-sampling activation control  */
	unsigned long interval;     /* 8-15: sampling interval		 */
	unsigned long tear;	    /* 16-23: TEAR contents		 */
	unsigned long dear;	    /* 24-31: DEAR contents		 */
	/* 32-63:							 */
	unsigned long rsvrd1;	    /* reserved				 */
	unsigned long rsvrd2;	    /* reserved				 */
	unsigned long rsvrd3;	    /* reserved				 */
	unsigned long rsvrd4;	    /* reserved				 */
} __packed;

struct hws_basic_entry {
	unsigned int def:16;	    /* 0-15  Data Entry Format		 */
	unsigned int R:4;	    /* 16-19 reserved			 */
	unsigned int U:4;	    /* 20-23 Number of unique instruct.  */
	unsigned int z:2;	    /* zeros				 */
	unsigned int T:1;	    /* 26 PSW DAT mode			 */
	unsigned int W:1;	    /* 27 PSW wait state		 */
	unsigned int P:1;	    /* 28 PSW Problem state		 */
	unsigned int AS:2;	    /* 29-30 PSW address-space control	 */
	unsigned int I:1;	    /* 31 entry valid or invalid	 */
	unsigned int CL:2;	    /* 32-33 Configuration Level	 */
	unsigned int H:1;	    /* 34 Host Indicator		 */
	unsigned int LS:1;	    /* 35 Limited Sampling		 */
	unsigned int:12;
	unsigned int prim_asn:16;   /* primary ASN			 */
	unsigned long long ia;	    /* Instruction Address		 */
	unsigned long long gpp;     /* Guest Program Parameter		 */
	unsigned long long hpp;     /* Host Program Parameter		 */
} __packed;

struct hws_diag_entry {
	unsigned int def:16;	    /* 0-15  Data Entry Format		 */
	unsigned int R:15;	    /* 16-19 and 20-30 reserved		 */
	unsigned int I:1;	    /* 31 entry valid or invalid	 */
	u8	     data[];	    /* Machine-dependent sample data	 */
} __packed;

struct hws_combined_entry {
	struct hws_basic_entry	basic;	/* Basic-sampling data entry */
	struct hws_diag_entry	diag;	/* Diagnostic-sampling data entry */
} __packed;

union hws_trailer_header {
	struct {
		unsigned int f:1;	/* 0 - Block Full Indicator   */
		unsigned int a:1;	/* 1 - Alert request control  */
		unsigned int t:1;	/* 2 - Timestamp format	      */
		unsigned int :29;	/* 3 - 31: Reserved	      */
		unsigned int bsdes:16;	/* 32-47: size of basic SDE   */
		unsigned int dsdes:16;	/* 48-63: size of diagnostic SDE */
		unsigned long long overflow; /* 64 - Overflow Count   */
	};
	__uint128_t val;
};

struct hws_trailer_entry {
	union hws_trailer_header header; /* 0 - 15 Flags + Overflow Count     */
	unsigned char timestamp[16];	 /* 16 - 31 timestamp		      */
	unsigned long long reserved1;	 /* 32 -Reserved		      */
	unsigned long long reserved2;	 /*				      */
	union {				 /* 48 - reserved for programming use */
		struct {
			unsigned int clock_base:1; /* in progusage2 */
			unsigned long long progusage1:63;
			unsigned long long progusage2;
		};
		unsigned long long progusage[2];
	};
} __packed;

/* Load program parameter */
static inline void lpp(void *pp)
{
	asm volatile(".insn s,0xb2800000,0(%0)\n":: "a" (pp) : "memory");
}

/* Query counter information */
static inline int qctri(struct cpumf_ctr_info *info)
{
	int rc = -EINVAL;

asm volatile (
		"0:	.insn	s,0xb28e0000,%1\n"
		"1:	lhi	%0,0\n"
		"2:\n"
		EX_TABLE(1b, 2b)
		: "+d" (rc), "=Q" (*info));
	return rc;
}

/* Load CPU-counter-set controls */
static inline int lcctl(u64 ctl)
{
	int cc;

asm volatile (
		"	.insn	s,0xb2840000,%1\n"
		"	ipm	%0\n"
		"	srl	%0,28\n"
		: "=d" (cc) : "Q" (ctl) : "cc");
	return cc;
}

/* Extract CPU counter */
static inline int __ecctr(u64 ctr, u64 *content)
{
	u64 _content;
	int cc;

asm volatile (
		"	.insn	rre,0xb2e40000,%0,%2\n"
		"	ipm	%1\n"
		"	srl	%1,28\n"
		: "=d" (_content), "=d" (cc) : "d" (ctr) : "cc");
	*content = _content;
	return cc;
}

/* Extract CPU counter */
static inline int ecctr(u64 ctr, u64 *val)
{
	u64 content;
	int cc;

cc = __ecctr(ctr, &content);
	if (!cc)
		*val = content;
	return cc;
}

/* Store CPU counter multiple for a particular counter set */
enum stcctm_ctr_set {
	EXTENDED = 0,
	BASIC = 1,
	PROBLEM_STATE = 2,
	CRYPTO_ACTIVITY = 3,
	MT_DIAG = 5,
	MT_DIAG_CLEARING = 9,	/* clears loss-of-MT-ctr-data alert */
};

static __always_inline int stcctm(enum stcctm_ctr_set set, u64 range, u64 *dest)
{
	int cc;

asm volatile (
		"	STCCTM	%2,%3,%1\n"
		"	ipm	%0\n"
		"	srl	%0,28\n"
		: "=d" (cc)
		: "Q" (*dest), "d" (range), "i" (set)
		: "cc", "memory");
	return cc;
}

/* Query sampling information */
static inline int qsi(struct hws_qsi_info_block *info)
{
	int cc = 1;

asm volatile(
		"0:	.insn	s,0xb2860000,%1\n"
		"1:	lhi	%0,0\n"
		"2:\n"
		EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
		: "+d" (cc), "+Q" (*info));
	return cc ? -EINVAL : 0;
}

/* Load sampling controls */
static inline int lsctl(struct hws_lsctl_request_block *req)
{
	int cc;

cc = 1;
	asm volatile(
		"0:	.insn	s,0xb2870000,0(%1)\n"
		"1:	ipm	%0\n"
		"	srl	%0,28\n"
		"2:\n"
		EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
		: "+d" (cc), "+a" (req)
		: "m" (*req)
		: "cc", "memory");

return cc ? -EINVAL : 0;
}

/* Sampling control helper functions */

#include <linux/time.h>

static inline unsigned long freq_to_sample_rate(struct hws_qsi_info_block *qsi,
						unsigned long freq)
{
	return (USEC_PER_SEC / freq) * qsi->cpu_speed;
}

static inline unsigned long sample_rate_to_freq(struct hws_qsi_info_block *qsi,
						unsigned long rate)
{
	return USEC_PER_SEC * qsi->cpu_speed / rate;
}

/* Return TOD timestamp contained in an trailer entry */
static inline unsigned long long trailer_timestamp(struct hws_trailer_entry *te)
{
	/* TOD in STCKE format */
	if (te->header.t)
		return *((unsigned long long *) &te->timestamp[1]);

/* TOD in STCK format */
	return *((unsigned long long *) &te->timestamp[0]);
}

/* Return pointer to trailer entry of an sample data block */
static inline unsigned long *trailer_entry_ptr(unsigned long v)
{
	void *ret;

ret = (void *) v;
	ret += PAGE_SIZE;
	ret -= sizeof(struct hws_trailer_entry);

return (unsigned long *) ret;
}

/* Return true if the entry in the sample data block table (sdbt)
 * is a link to the next sdbt */
static inline int is_link_entry(unsigned long *s)
{
	return *s & 0x1ul ? 1 : 0;
}

/* Return pointer to the linked sdbt */
static inline unsigned long *get_next_sdbt(unsigned long *s)
{
	return (unsigned long *) (*s & ~0x1ul);
}
#endif /* _ASM_S390_CPU_MF_H */

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