/* SPDX-License-Identifier: GPL-2.0 */ /* * CPU-measurement facilities * * Copyright IBM Corp. 2012 * 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> #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 MACHINE_HAS_LPP && test_facility(67); } static inline int cpum_sf_avail(void) { return MACHINE_HAS_LPP && 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:14; 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; struct hws_trailer_entry { union { 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 flags; /* 0 - 63: All indicators */ }; unsigned long long overflow; /* 64 - sample Overflow count */ unsigned char timestamp[16]; /* 16 - 31 timestamp */ unsigned long long reserved1; /* 32 -Reserved */ unsigned long long reserved2; /* */ unsigned long long progusage1; /* 48 - reserved for programming use */ unsigned long long progusage2; /* */ } __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 the MT utilization counter set */ static inline int stcctm5(u64 num, u64 *val) { int cc; asm volatile ( " .insn rsy,0xeb0000000017,%2,5,%1\n" " ipm %0\n" " srl %0,28\n" : "=d" (cc) : "Q" (*val), "d" (num) : "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; } #define SDB_TE_ALERT_REQ_MASK 0x4000000000000000UL #define SDB_TE_BUFFER_FULL_MASK 0x8000000000000000UL /* 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->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 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 */
Name | Type | Size | Permission | Actions |
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fpu | Folder | 0755 |
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trace | Folder | 0755 |
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Kbuild | File | 557 B | 0644 |
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airq.h | File | 3.02 KB | 0644 |
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alternative-asm.h | File | 3.07 KB | 0644 |
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alternative.h | File | 4.99 KB | 0644 |
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ap.h | File | 9.9 KB | 0644 |
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appldata.h | File | 1.54 KB | 0644 |
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archrandom.h | File | 1.1 KB | 0644 |
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asm-prototypes.h | File | 227 B | 0644 |
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atomic.h | File | 5.1 KB | 0644 |
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atomic_ops.h | File | 4.02 KB | 0644 |
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barrier.h | File | 1.84 KB | 0644 |
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bitops.h | File | 10.13 KB | 0644 |
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bug.h | File | 1.49 KB | 0644 |
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bugs.h | File | 441 B | 0644 |
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cache.h | File | 387 B | 0644 |
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ccwdev.h | File | 7.99 KB | 0644 |
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ccwgroup.h | File | 2.53 KB | 0644 |
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checksum.h | File | 3.24 KB | 0644 |
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chpid.h | File | 974 B | 0644 |
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cio.h | File | 8.01 KB | 0644 |
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clp.h | File | 1.32 KB | 0644 |
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cmb.h | File | 425 B | 0644 |
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cmpxchg.h | File | 1.76 KB | 0644 |
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compat.h | File | 7.9 KB | 0644 |
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cpacf.h | File | 16.8 KB | 0644 |
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cpcmd.h | File | 1.11 KB | 0644 |
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cpu.h | File | 549 B | 0644 |
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cpu_mf.h | File | 8.99 KB | 0644 |
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cpufeature.h | File | 963 B | 0644 |
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cputime.h | File | 805 B | 0644 |
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crw.h | File | 1.86 KB | 0644 |
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css_chars.h | File | 769 B | 0644 |
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ctl_reg.h | File | 2.89 KB | 0644 |
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current.h | File | 405 B | 0644 |
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debug.h | File | 8.1 KB | 0644 |
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delay.h | File | 721 B | 0644 |
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diag.h | File | 5.94 KB | 0644 |
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dis.h | File | 637 B | 0644 |
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dma-mapping.h | File | 621 B | 0644 |
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dma.h | File | 456 B | 0644 |
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eadm.h | File | 2.03 KB | 0644 |
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ebcdic.h | File | 1.41 KB | 0644 |
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elf.h | File | 10.36 KB | 0644 |
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exec.h | File | 269 B | 0644 |
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extable.h | File | 875 B | 0644 |
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extmem.h | File | 804 B | 0644 |
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facility.h | File | 2.44 KB | 0644 |
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fcx.h | File | 7.91 KB | 0644 |
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ftrace.h | File | 1.66 KB | 0644 |
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futex.h | File | 2.07 KB | 0644 |
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gmap.h | File | 4.93 KB | 0644 |
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hardirq.h | File | 670 B | 0644 |
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hugetlb.h | File | 2.82 KB | 0644 |
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hw_irq.h | File | 249 B | 0644 |
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idals.h | File | 5.22 KB | 0644 |
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idle.h | File | 709 B | 0644 |
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io.h | File | 2.03 KB | 0644 |
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ipl.h | File | 3.6 KB | 0644 |
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irq.h | File | 2.55 KB | 0644 |
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irqflags.h | File | 1.76 KB | 0644 |
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isc.h | File | 1000 B | 0644 |
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itcw.h | File | 950 B | 0644 |
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jump_label.h | File | 1.36 KB | 0644 |
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kdebug.h | File | 386 B | 0644 |
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kexec.h | File | 1.32 KB | 0644 |
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kprobes.h | File | 2.24 KB | 0644 |
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kvm_host.h | File | 22.24 KB | 0644 |
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kvm_para.h | File | 5.78 KB | 0644 |
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linkage.h | File | 633 B | 0644 |
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livepatch.h | File | 461 B | 0644 |
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lowcore.h | File | 6.29 KB | 0644 |
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mmu.h | File | 1.19 KB | 0644 |
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mmu_context.h | File | 3.84 KB | 0644 |
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mmzone.h | File | 316 B | 0644 |
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module.h | File | 802 B | 0644 |
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nmi.h | File | 3.44 KB | 0644 |
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nospec-branch.h | File | 342 B | 0644 |
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nospec-insn.h | File | 3.81 KB | 0644 |
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numa.h | File | 730 B | 0644 |
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os_info.h | File | 1.1 KB | 0644 |
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page-states.h | File | 486 B | 0644 |
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page.h | File | 5.12 KB | 0644 |
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pci.h | File | 6.26 KB | 0644 |
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pci_clp.h | File | 4.25 KB | 0644 |
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pci_debug.h | File | 608 B | 0644 |
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pci_dma.h | File | 5.7 KB | 0644 |
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pci_insn.h | File | 2.59 KB | 0644 |
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pci_io.h | File | 4.58 KB | 0644 |
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percpu.h | File | 6.43 KB | 0644 |
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perf_event.h | File | 2.71 KB | 0644 |
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pgalloc.h | File | 4.32 KB | 0644 |
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pgtable.h | File | 47.7 KB | 0644 |
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pkey.h | File | 4.23 KB | 0644 |
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preempt.h | File | 3.25 KB | 0644 |
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processor.h | File | 10.42 KB | 0644 |
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ptrace.h | File | 5.27 KB | 0644 |
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qdio.h | File | 11.67 KB | 0644 |
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reset.h | File | 471 B | 0644 |
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runtime_instr.h | File | 1.76 KB | 0644 |
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schid.h | File | 525 B | 0644 |
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sclp.h | File | 3.38 KB | 0644 |
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scsw.h | File | 24.1 KB | 0644 |
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seccomp.h | File | 516 B | 0644 |
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sections.h | File | 155 B | 0644 |
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segment.h | File | 93 B | 0644 |
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serial.h | File | 147 B | 0644 |
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set_memory.h | File | 779 B | 0644 |
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setup.h | File | 4.44 KB | 0644 |
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shmparam.h | File | 285 B | 0644 |
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signal.h | File | 644 B | 0644 |
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sigp.h | File | 1.8 KB | 0644 |
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smp.h | File | 2.45 KB | 0644 |
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sparsemem.h | File | 214 B | 0644 |
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spinlock.h | File | 3.53 KB | 0644 |
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spinlock_types.h | File | 437 B | 0644 |
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stp.h | File | 1.26 KB | 0644 |
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string.h | File | 4.5 KB | 0644 |
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switch_to.h | File | 1.37 KB | 0644 |
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syscall.h | File | 2.63 KB | 0644 |
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sysinfo.h | File | 4.22 KB | 0644 |
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termios.h | File | 685 B | 0644 |
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thread_info.h | File | 3.15 KB | 0644 |
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timex.h | File | 6.15 KB | 0644 |
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tlb.h | File | 5.71 KB | 0644 |
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tlbflush.h | File | 3.52 KB | 0644 |
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topology.h | File | 2.69 KB | 0644 |
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uaccess.h | File | 6.57 KB | 0644 |
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unistd.h | File | 1.03 KB | 0644 |
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uprobes.h | File | 588 B | 0644 |
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user.h | File | 3.3 KB | 0644 |
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vdso.h | File | 1.8 KB | 0644 |
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vga.h | File | 170 B | 0644 |
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vtime.h | File | 182 B | 0644 |
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vtimer.h | File | 866 B | 0644 |
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vx-insn.h | File | 10.66 KB | 0644 |
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xor.h | File | 454 B | 0644 |
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