arch: ia64: Remove rest of perfmon support (1f4e74c0) · Commits · EulixOS / Software / Kernel

arch/ia64/include/asm/hw_irq.h

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		@@ -69,7 +69,6 @@ extern int ia64_last_device_vector;
		#define IA64_NUM_DEVICE_VECTORS (IA64_LAST_DEVICE_VECTOR - IA64_FIRST_DEVICE_VECTOR + 1)

		#define IA64_MCA_RENDEZ_VECTOR 0xe8 /* MCA rendez interrupt */
		#define IA64_PERFMON_VECTOR 0xee /* performance monitor interrupt vector */
		#define IA64_TIMER_VECTOR 0xef /* use highest-prio group 15 interrupt for timer */
		#define IA64_MCA_WAKEUP_VECTOR 0xf0 /* MCA wakeup (must be >MCA_RENDEZ_VECTOR) */
		#define IA64_IPI_LOCAL_TLB_FLUSH 0xfc /* SMP flush local TLB */

arch/ia64/include/asm/perfmon.h

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		/* SPDX-License-Identifier: GPL-2.0 */
		/*
		* Copyright (C) 2001-2003 Hewlett-Packard Co
		* Stephane Eranian <eranian@hpl.hp.com>
		*/
		#ifndef _ASM_IA64_PERFMON_H
		#define _ASM_IA64_PERFMON_H

		#include <uapi/asm/perfmon.h>


		extern long perfmonctl(int fd, int cmd, void *arg, int narg);

		typedef struct {
		void (handler)(int irq, void arg, struct pt_regs *regs);
		} pfm_intr_handler_desc_t;

		extern void pfm_save_regs (struct task_struct *);
		extern void pfm_load_regs (struct task_struct *);

		extern void pfm_exit_thread(struct task_struct *);
		extern int pfm_use_debug_registers(struct task_struct *);
		extern int pfm_release_debug_registers(struct task_struct *);
		extern void pfm_syst_wide_update_task(struct task_struct *, unsigned long info, int is_ctxswin);
		extern void pfm_inherit(struct task_struct task, struct pt_regs regs);
		extern void pfm_init_percpu(void);
		extern void pfm_handle_work(void);
		extern int pfm_install_alt_pmu_interrupt(pfm_intr_handler_desc_t *h);
		extern int pfm_remove_alt_pmu_interrupt(pfm_intr_handler_desc_t *h);



		/*
		* Reset PMD register flags
		*/
		#define PFM_PMD_SHORT_RESET 0
		#define PFM_PMD_LONG_RESET 1

		typedef union {
		unsigned int val;
		struct {
		unsigned int notify_user:1; /* notify user program of overflow */
		unsigned int reset_ovfl_pmds:1; /* reset overflowed PMDs */
		unsigned int block_task:1; /* block monitored task on kernel exit */
		unsigned int mask_monitoring:1; /* mask monitors via PMCx.plm */
		unsigned int reserved:28; /* for future use */
		} bits;
		} pfm_ovfl_ctrl_t;

		typedef struct {
		unsigned char ovfl_pmd; /* index of overflowed PMD */
		unsigned char ovfl_notify; /* =1 if monitor requested overflow notification */
		unsigned short active_set; /* event set active at the time of the overflow */
		pfm_ovfl_ctrl_t ovfl_ctrl; /* return: perfmon controls to set by handler */

		unsigned long pmd_last_reset; /* last reset value of of the PMD */
		unsigned long smpl_pmds[4]; /* bitmask of other PMD of interest on overflow */
		unsigned long smpl_pmds_values[PMU_MAX_PMDS]; /* values for the other PMDs of interest */
		unsigned long pmd_value; /* current 64-bit value of the PMD */
		unsigned long pmd_eventid; /* eventid associated with PMD */
		} pfm_ovfl_arg_t;


		typedef struct {
		char *fmt_name;
		pfm_uuid_t fmt_uuid;
		size_t fmt_arg_size;
		unsigned long fmt_flags;

		int (fmt_validate)(struct task_struct task, unsigned int flags, int cpu, void *arg);
		int (fmt_getsize)(struct task_struct task, unsigned int flags, int cpu, void arg, unsigned long size);
		int (fmt_init)(struct task_struct task, void buf, unsigned int flags, int cpu, void arg);
		int (fmt_handler)(struct task_struct task, void buf, pfm_ovfl_arg_t arg, struct pt_regs *regs, unsigned long stamp);
		int (fmt_restart)(struct task_struct task, pfm_ovfl_ctrl_t ctrl, void buf, struct pt_regs *regs);
		int (fmt_restart_active)(struct task_struct task, pfm_ovfl_ctrl_t ctrl, void buf, struct pt_regs *regs);
		int (fmt_exit)(struct task_struct task, void buf, struct pt_regs regs);

		struct list_head fmt_list;
		} pfm_buffer_fmt_t;

		extern int pfm_register_buffer_fmt(pfm_buffer_fmt_t *fmt);
		extern int pfm_unregister_buffer_fmt(pfm_uuid_t uuid);

		/*
		* perfmon interface exported to modules
		*/
		extern int pfm_mod_read_pmds(struct task_struct , void req, unsigned int nreq, struct pt_regs *regs);
		extern int pfm_mod_write_pmcs(struct task_struct , void req, unsigned int nreq, struct pt_regs *regs);
		extern int pfm_mod_write_ibrs(struct task_struct task, void req, unsigned int nreq, struct pt_regs *regs);
		extern int pfm_mod_write_dbrs(struct task_struct task, void req, unsigned int nreq, struct pt_regs *regs);

		/*
		* describe the content of the local_cpu_date->pfm_syst_info field
		*/
		#define PFM_CPUINFO_SYST_WIDE 0x1 /* if set a system wide session exists */
		#define PFM_CPUINFO_DCR_PP 0x2 /* if set the system wide session has started */
		#define PFM_CPUINFO_EXCL_IDLE 0x4 /* the system wide session excludes the idle task */

		/*
		* sysctl control structure. visible to sampling formats
		*/
		typedef struct {
		int debug; /* turn on/off debugging via syslog */
		int debug_ovfl; /* turn on/off debug printk in overflow handler */
		int fastctxsw; /* turn on/off fast (unsecure) ctxsw */
		int expert_mode; /* turn on/off value checking */
		} pfm_sysctl_t;
		extern pfm_sysctl_t pfm_sysctl;


		#endif /* _ASM_IA64_PERFMON_H */

arch/ia64/include/uapi/asm/perfmon.h

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Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
		/*
		* Copyright (C) 2001-2003 Hewlett-Packard Co
		* Stephane Eranian <eranian@hpl.hp.com>
		*/

		#ifndef _UAPI_ASM_IA64_PERFMON_H
		#define _UAPI_ASM_IA64_PERFMON_H

		/*
		* perfmon commands supported on all CPU models
		*/
		#define PFM_WRITE_PMCS 0x01
		#define PFM_WRITE_PMDS 0x02
		#define PFM_READ_PMDS 0x03
		#define PFM_STOP 0x04
		#define PFM_START 0x05
		#define PFM_ENABLE 0x06 /* obsolete */
		#define PFM_DISABLE 0x07 /* obsolete */
		#define PFM_CREATE_CONTEXT 0x08
		#define PFM_DESTROY_CONTEXT 0x09 /* obsolete use close() */
		#define PFM_RESTART 0x0a
		#define PFM_PROTECT_CONTEXT 0x0b /* obsolete */
		#define PFM_GET_FEATURES 0x0c
		#define PFM_DEBUG 0x0d
		#define PFM_UNPROTECT_CONTEXT 0x0e /* obsolete */
		#define PFM_GET_PMC_RESET_VAL 0x0f
		#define PFM_LOAD_CONTEXT 0x10
		#define PFM_UNLOAD_CONTEXT 0x11

		/*
		* PMU model specific commands (may not be supported on all PMU models)
		*/
		#define PFM_WRITE_IBRS 0x20
		#define PFM_WRITE_DBRS 0x21

		/*
		* context flags
		*/
		#define PFM_FL_NOTIFY_BLOCK 0x01 /* block task on user level notifications */
		#define PFM_FL_SYSTEM_WIDE 0x02 /* create a system wide context */
		#define PFM_FL_OVFL_NO_MSG 0x80 /* do not post overflow/end messages for notification */

		/*
		* event set flags
		*/
		#define PFM_SETFL_EXCL_IDLE 0x01 /* exclude idle task (syswide only) XXX: DO NOT USE YET */

		/*
		* PMC flags
		*/
		#define PFM_REGFL_OVFL_NOTIFY 0x1 /* send notification on overflow */
		#define PFM_REGFL_RANDOM 0x2 /* randomize sampling interval */

		/*
		* PMD/PMC/IBR/DBR return flags (ignored on input)
		*
		* Those flags are used on output and must be checked in case EAGAIN is returned
		* by any of the calls using a pfarg_reg_t or pfarg_dbreg_t structure.
		*/
		#define PFM_REG_RETFL_NOTAVAIL (1UL<<31) /* set if register is implemented but not available */
		#define PFM_REG_RETFL_EINVAL (1UL<<30) /* set if register entry is invalid */
		#define PFM_REG_RETFL_MASK (PFM_REG_RETFL_NOTAVAIL\|PFM_REG_RETFL_EINVAL)

		#define PFM_REG_HAS_ERROR(flag) (((flag) & PFM_REG_RETFL_MASK) != 0)

		typedef unsigned char pfm_uuid_t[16]; /* custom sampling buffer identifier type */

		/*
		* Request structure used to define a context
		*/
		typedef struct {
		pfm_uuid_t ctx_smpl_buf_id; /* which buffer format to use (if needed) */
		unsigned long ctx_flags; /* noblock/block */
		unsigned short ctx_nextra_sets; /* number of extra event sets (you always get 1) */
		unsigned short ctx_reserved1; /* for future use */
		int ctx_fd; /* return arg: unique identification for context */
		void ctx_smpl_vaddr; / return arg: virtual address of sampling buffer, is used */
		unsigned long ctx_reserved2[11];/* for future use */
		} pfarg_context_t;

		/*
		* Request structure used to write/read a PMC or PMD
		*/
		typedef struct {
		unsigned int reg_num; /* which register */
		unsigned short reg_set; /* event set for this register */
		unsigned short reg_reserved1; /* for future use */

		unsigned long reg_value; /* initial pmc/pmd value */
		unsigned long reg_flags; /* input: pmc/pmd flags, return: reg error */

		unsigned long reg_long_reset; /* reset after buffer overflow notification */
		unsigned long reg_short_reset; /* reset after counter overflow */

		unsigned long reg_reset_pmds[4]; /* which other counters to reset on overflow */
		unsigned long reg_random_seed; /* seed value when randomization is used */
		unsigned long reg_random_mask; /* bitmask used to limit random value */
		unsigned long reg_last_reset_val;/* return: PMD last reset value */

		unsigned long reg_smpl_pmds[4]; /* which pmds are accessed when PMC overflows */
		unsigned long reg_smpl_eventid; /* opaque sampling event identifier */

		unsigned long reg_reserved2[3]; /* for future use */
		} pfarg_reg_t;

		typedef struct {
		unsigned int dbreg_num; /* which debug register */
		unsigned short dbreg_set; /* event set for this register */
		unsigned short dbreg_reserved1; /* for future use */
		unsigned long dbreg_value; /* value for debug register */
		unsigned long dbreg_flags; /* return: dbreg error */
		unsigned long dbreg_reserved2[1]; /* for future use */
		} pfarg_dbreg_t;

		typedef struct {
		unsigned int ft_version; /* perfmon: major [16-31], minor [0-15] */
		unsigned int ft_reserved; /* reserved for future use */
		unsigned long reserved[4]; /* for future use */
		} pfarg_features_t;

		typedef struct {
		pid_t load_pid; /* process to load the context into */
		unsigned short load_set; /* first event set to load */
		unsigned short load_reserved1; /* for future use */
		unsigned long load_reserved2[3]; /* for future use */
		} pfarg_load_t;

		typedef struct {
		int msg_type; /* generic message header */
		int msg_ctx_fd; /* generic message header */
		unsigned long msg_ovfl_pmds[4]; /* which PMDs overflowed */
		unsigned short msg_active_set; /* active set at the time of overflow */
		unsigned short msg_reserved1; /* for future use */
		unsigned int msg_reserved2; /* for future use */
		unsigned long msg_tstamp; /* for perf tuning/debug */
		} pfm_ovfl_msg_t;

		typedef struct {
		int msg_type; /* generic message header */
		int msg_ctx_fd; /* generic message header */
		unsigned long msg_tstamp; /* for perf tuning */
		} pfm_end_msg_t;

		typedef struct {
		int msg_type; /* type of the message */
		int msg_ctx_fd; /* unique identifier for the context */
		unsigned long msg_tstamp; /* for perf tuning */
		} pfm_gen_msg_t;

		#define PFM_MSG_OVFL 1 /* an overflow happened */
		#define PFM_MSG_END 2 /* task to which context was attached ended */

		typedef union {
		pfm_ovfl_msg_t pfm_ovfl_msg;
		pfm_end_msg_t pfm_end_msg;
		pfm_gen_msg_t pfm_gen_msg;
		} pfm_msg_t;

		/*
		* Define the version numbers for both perfmon as a whole and the sampling buffer format.
		*/
		#define PFM_VERSION_MAJ 2U
		#define PFM_VERSION_MIN 0U
		#define PFM_VERSION (((PFM_VERSION_MAJ&0xffff)<<16)\|(PFM_VERSION_MIN & 0xffff))
		#define PFM_VERSION_MAJOR(x) (((x)>>16) & 0xffff)
		#define PFM_VERSION_MINOR(x) ((x) & 0xffff)


		/*
		* miscellaneous architected definitions
		*/
		#define PMU_FIRST_COUNTER 4 /* first counting monitor (PMC/PMD) */
		#define PMU_MAX_PMCS 256 /* maximum architected number of PMC registers */
		#define PMU_MAX_PMDS 256 /* maximum architected number of PMD registers */


		#endif /* _UAPI_ASM_IA64_PERFMON_H */

arch/ia64/include/uapi/asm/perfmon_default_smpl.h

deleted100644 → 0

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		/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
		/*
		* Copyright (C) 2002-2003 Hewlett-Packard Co
		* Stephane Eranian <eranian@hpl.hp.com>
		*
		* This file implements the default sampling buffer format
		* for Linux/ia64 perfmon subsystem.
		*/
		#ifndef __PERFMON_DEFAULT_SMPL_H__
		#define __PERFMON_DEFAULT_SMPL_H__ 1

		#define PFM_DEFAULT_SMPL_UUID { \
		0x4d, 0x72, 0xbe, 0xc0, 0x06, 0x64, 0x41, 0x43, 0x82, 0xb4, 0xd3, 0xfd, 0x27, 0x24, 0x3c, 0x97}

		/*
		* format specific parameters (passed at context creation)
		*/
		typedef struct {
		unsigned long buf_size; /* size of the buffer in bytes */
		unsigned int flags; /* buffer specific flags */
		unsigned int res1; /* for future use */
		unsigned long reserved[2]; /* for future use */
		} pfm_default_smpl_arg_t;

		/*
		* combined context+format specific structure. Can be passed
		* to PFM_CONTEXT_CREATE
		*/
		typedef struct {
		pfarg_context_t ctx_arg;
		pfm_default_smpl_arg_t buf_arg;
		} pfm_default_smpl_ctx_arg_t;

		/*
		* This header is at the beginning of the sampling buffer returned to the user.
		* It is directly followed by the first record.
		*/
		typedef struct {
		unsigned long hdr_count; /* how many valid entries */
		unsigned long hdr_cur_offs; /* current offset from top of buffer */
		unsigned long hdr_reserved2; /* reserved for future use */

		unsigned long hdr_overflows; /* how many times the buffer overflowed */
		unsigned long hdr_buf_size; /* how many bytes in the buffer */

		unsigned int hdr_version; /* contains perfmon version (smpl format diffs) */
		unsigned int hdr_reserved1; /* for future use */
		unsigned long hdr_reserved[10]; /* for future use */
		} pfm_default_smpl_hdr_t;

		/*
		* Entry header in the sampling buffer. The header is directly followed
		* with the values of the PMD registers of interest saved in increasing
		* index order: PMD4, PMD5, and so on. How many PMDs are present depends
		* on how the session was programmed.
		*
		* In the case where multiple counters overflow at the same time, multiple
		* entries are written consecutively.
		*
		* last_reset_value member indicates the initial value of the overflowed PMD.
		*/
		typedef struct {
		int pid; /* thread id (for NPTL, this is gettid()) */
		unsigned char reserved1[3]; /* reserved for future use */
		unsigned char ovfl_pmd; /* index of overflowed PMD */

		unsigned long last_reset_val; /* initial value of overflowed PMD */
		unsigned long ip; /* where did the overflow interrupt happened */
		unsigned long tstamp; /* ar.itc when entering perfmon intr. handler */

		unsigned short cpu; /* cpu on which the overflow occurred */
		unsigned short set; /* event set active when overflow occurred */
		int tgid; /* thread group id (for NPTL, this is getpid()) */
		} pfm_default_smpl_entry_t;

		#define PFM_DEFAULT_MAX_PMDS 64 /* how many pmds supported by data structures (sizeof(unsigned long) */
		#define PFM_DEFAULT_MAX_ENTRY_SIZE (sizeof(pfm_default_smpl_entry_t)+(sizeof(unsigned long)*PFM_DEFAULT_MAX_PMDS))
		#define PFM_DEFAULT_SMPL_MIN_BUF_SIZE (sizeof(pfm_default_smpl_hdr_t)+PFM_DEFAULT_MAX_ENTRY_SIZE)

		#define PFM_DEFAULT_SMPL_VERSION_MAJ 2U
		#define PFM_DEFAULT_SMPL_VERSION_MIN 0U
		#define PFM_DEFAULT_SMPL_VERSION (((PFM_DEFAULT_SMPL_VERSION_MAJ&0xffff)<<16)\|(PFM_DEFAULT_SMPL_VERSION_MIN & 0xffff))

		#endif /* __PERFMON_DEFAULT_SMPL_H__ */

arch/ia64/kernel/palinfo.c

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Original line number	Diff line number	Diff line
		@@ -648,46 +648,6 @@ static int version_info(struct seq_file *m)
		return 0;
		}

		static int perfmon_info(struct seq_file *m)
		{
		u64 pm_buffer[16];
		pal_perf_mon_info_u_t pm_info;

		if (ia64_pal_perf_mon_info(pm_buffer, &pm_info) != 0)
		return 0;

		seq_printf(m,
		"PMC/PMD pairs : %d\n"
		"Counter width : %d bits\n"
		"Cycle event number : %d\n"
		"Retired event number : %d\n"
		"Implemented PMC : ",
		pm_info.pal_perf_mon_info_s.generic,
		pm_info.pal_perf_mon_info_s.width,
		pm_info.pal_perf_mon_info_s.cycles,
		pm_info.pal_perf_mon_info_s.retired);

		bitregister_process(m, pm_buffer, 256);
		seq_puts(m, "\nImplemented PMD : ");
		bitregister_process(m, pm_buffer+4, 256);
		seq_puts(m, "\nCycles count capable : ");
		bitregister_process(m, pm_buffer+8, 256);
		seq_puts(m, "\nRetired bundles count capable : ");

		#ifdef CONFIG_ITANIUM
		/*
		* PAL_PERF_MON_INFO reports that only PMC4 can be used to count CPU_CYCLES
		* which is wrong, both PMC4 and PMD5 support it.
		*/
		if (pm_buffer[12] == 0x10)
		pm_buffer[12]=0x30;
		#endif

		bitregister_process(m, pm_buffer+12, 256);
		seq_putc(m, '\n');
		return 0;
		}

		static int frequency_info(struct seq_file *m)
		{
		struct pal_freq_ratio proc, itc, bus;
		@@ -816,7 +776,6 @@ static const palinfo_entry_t palinfo_entries[]={
		{ "power_info", power_info, },
		{ "register_info", register_info, },
		{ "processor_info", processor_info, },
		{ "perfmon_info", perfmon_info, },
		{ "frequency_info", frequency_info, },
		{ "bus_info", bus_info },
		{ "tr_info", tr_info, }