#include <sys/cdefs.h>
#include "opt_hwpmc_hooks.h"
#include <sys/param.h>
#include <sys/ctype.h>
#include <sys/domainset.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/pmc.h>
#include <sys/pmckern.h>
#include <sys/smp.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <vm/vm.h>
#include <vm/vm_extern.h>
#include <vm/vm_kern.h>

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Macros
#define	PMC_KERNEL_VERSION 0

Functions
	__FBSDID ("$FreeBSD$")

	MALLOC_DECLARE (M_PMCHOOKS)

	MALLOC_DEFINE (M_PMCHOOKS, "pmchooks", "Memory space for PMC hooks")

	MALLOC_DEFINE (M_PMC, "pmc", "Memory space for the PMC module")

	DPCPU_DEFINE (uint8_t, pmc_sampled)

	SX_SYSINIT (pmcsx, &pmc_sx, "pmc-sx")

	SYSCTL_NODE (_kern, OID_AUTO, hwpmc, CTLFLAG_RW\|CTLFLAG_MPSAFE, 0, "HWPMC parameters")

	SYSCTL_INT (_kern_hwpmc, OID_AUTO, softevents, CTLFLAG_RDTUN, &pmc_softevents, 0, "maximum number of soft events")

	MTX_SYSINIT (pmc_soft_mtx, &pmc_softs_mtx, "pmc-softs", MTX_SPIN)

int	pmc_cpu_is_active (int cpu)

int	pmc_cpu_is_disabled (int cpu)

int	pmc_cpu_is_present (int cpu)

int	pmc_cpu_is_primary (int cpu)

unsigned int	pmc_cpu_max (void)

static void	pmc_soft_namecleanup (char *name)

void	pmc_soft_ev_register (struct pmc_soft *ps)

void	pmc_soft_ev_deregister (struct pmc_soft *ps)

struct pmc_soft *	pmc_soft_ev_acquire (enum pmc_event ev)

void	pmc_soft_ev_release (struct pmc_soft *ps)

static void	init_hwpmc (void *dummy __unused)

	SYSINIT (hwpmc, SI_SUB_KDTRACE, SI_ORDER_FIRST, init_hwpmc, NULL)

Variables
const int	pmc_kernel_version = PMC_KERNEL_VERSION

int __read_mostly(*	pmc_hook )(struct thread td, int function, void arg) = NULL

int __read_mostly(*	pmc_intr )(struct trapframe *tf) = NULL

volatile int	pmc_ss_count

struct sx	pmc_sx

struct trapframe	pmc_tf [MAXCPU]

__read_mostly struct pmc_domain_buffer_header *	pmc_dom_hdrs [MAXMEMDOM]

static int	pmc_softevents = 16

int	pmc_softs_count

struct pmc_soft **	pmc_softs

struct mtx	pmc_softs_mtx

Macro Definition Documentation

◆ PMC_KERNEL_VERSION

#define PMC_KERNEL_VERSION 0

Definition at line 60 of file kern_pmc.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ DPCPU_DEFINE()

DPCPU_DEFINE	(	uint8_t	,
		pmc_sampled
	)

◆ init_hwpmc()

static void init_hwpmc ( void *dummy __unused )

static

Definition at line 338 of file kern_pmc.c.

References domain, malloc(), malloc_domainset(), pcpu_find(), pmc_dom_hdrs, pmc_softevents, pmc_softs, and printf().

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◆ MALLOC_DECLARE()

MALLOC_DECLARE ( M_PMCHOOKS )

◆ MALLOC_DEFINE() [1/2]

MALLOC_DEFINE	(	M_PMC	,
		"pmc"	,
		"Memory space for the PMC module"
	)

◆ MALLOC_DEFINE() [2/2]

MALLOC_DEFINE	(	M_PMCHOOKS	,
		"pmchooks"	,
		"Memory space for PMC hooks"
	)

◆ MTX_SYSINIT()

MTX_SYSINIT	(	pmc_soft_mtx	,
		&	pmc_softs_mtx,
		"pmc-softs"	,
		MTX_SPIN
	)

◆ pmc_cpu_is_active()

int pmc_cpu_is_active ( int cpu )

Definition at line 150 of file kern_pmc.c.

References pmc_cpu_is_present().

Referenced by pmc_cpu_is_disabled().

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◆ pmc_cpu_is_disabled()

int pmc_cpu_is_disabled ( int cpu )

Definition at line 162 of file kern_pmc.c.

References pmc_cpu_is_active().

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◆ pmc_cpu_is_present()

int pmc_cpu_is_present ( int cpu )

Definition at line 168 of file kern_pmc.c.

Referenced by pmc_cpu_is_active().

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◆ pmc_cpu_is_primary()

int pmc_cpu_is_primary ( int cpu )

Definition at line 178 of file kern_pmc.c.

◆ pmc_cpu_max()

unsigned int pmc_cpu_max ( void )

Definition at line 193 of file kern_pmc.c.

References mp_maxid.

◆ pmc_soft_ev_acquire()

struct pmc_soft * pmc_soft_ev_acquire ( enum pmc_event ev )

Definition at line 307 of file kern_pmc.c.

References ev, pmc_softevents, pmc_softs, and pmc_softs_mtx.

◆ pmc_soft_ev_deregister()

void pmc_soft_ev_deregister ( struct pmc_soft * ps )

Definition at line 288 of file kern_pmc.c.

References pmc_softevents, pmc_softs, and pmc_softs_mtx.

◆ pmc_soft_ev_register()

void pmc_soft_ev_register ( struct pmc_soft * ps )

Definition at line 248 of file kern_pmc.c.

References pmc_soft_namecleanup(), pmc_softevents, pmc_softs, pmc_softs_count, pmc_softs_mtx, and printf().

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◆ pmc_soft_ev_release()

void pmc_soft_ev_release ( struct pmc_soft * ps )

Definition at line 328 of file kern_pmc.c.

References pmc_softs_mtx.

◆ pmc_soft_namecleanup()

static void pmc_soft_namecleanup ( char * name )

static

Definition at line 230 of file kern_pmc.c.

References name.

Referenced by pmc_soft_ev_register().

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◆ SX_SYSINIT()

SX_SYSINIT	(	pmcsx	,
		&	pmc_sx,
		"pmc-sx"
	)

◆ SYSCTL_INT()

SYSCTL_INT	(	_kern_hwpmc	,
		OID_AUTO	,
		softevents	,
		CTLFLAG_RDTUN	,
		&	pmc_softevents,
		0	,
		"maximum number of soft events"
	)

◆ SYSCTL_NODE()

SYSCTL_NODE	(	_kern	,
		OID_AUTO	,
		hwpmc	,
		CTLFLAG_RW\|	CTLFLAG_MPSAFE,
		0	,
		"HWPMC parameters"
	)

◆ SYSINIT()

SYSINIT	(	hwpmc	,
		SI_SUB_KDTRACE	,
		SI_ORDER_FIRST	,
		init_hwpmc	,
		NULL
	)

Variable Documentation

◆ pmc_dom_hdrs

__read_mostly struct pmc_domain_buffer_header* pmc_dom_hdrs[MAXMEMDOM]

Definition at line 105 of file kern_pmc.c.

Referenced by init_hwpmc().

◆ pmc_hook

int __read_mostly(* pmc_hook) (struct thread td, int function, void arg)	(	struct thread *	td,
		int	function,
		void *	arg
	)		= NULL

Definition at line 72 of file kern_pmc.c.

Referenced by intr_irq_handler().

◆ pmc_intr

int __read_mostly(* pmc_intr) (struct trapframe *tf) ( struct trapframe * tf ) = NULL

Definition at line 75 of file kern_pmc.c.

◆ pmc_kernel_version

const int pmc_kernel_version = PMC_KERNEL_VERSION

Definition at line 69 of file kern_pmc.c.

◆ pmc_softevents

int pmc_softevents = 16

static

Definition at line 114 of file kern_pmc.c.

Referenced by init_hwpmc(), pmc_soft_ev_acquire(), pmc_soft_ev_deregister(), and pmc_soft_ev_register().

◆ pmc_softs

struct pmc_soft** pmc_softs

Definition at line 119 of file kern_pmc.c.

Referenced by init_hwpmc(), pmc_soft_ev_acquire(), pmc_soft_ev_deregister(), and pmc_soft_ev_register().

◆ pmc_softs_count

int pmc_softs_count

Definition at line 118 of file kern_pmc.c.

Referenced by pmc_soft_ev_register().

◆ pmc_softs_mtx

struct mtx pmc_softs_mtx

Definition at line 121 of file kern_pmc.c.

Referenced by pmc_soft_ev_acquire(), pmc_soft_ev_deregister(), pmc_soft_ev_register(), and pmc_soft_ev_release().

◆ pmc_ss_count

volatile int pmc_ss_count

Definition at line 83 of file kern_pmc.c.

◆ pmc_sx

struct sx pmc_sx

Definition at line 94 of file kern_pmc.c.

◆ pmc_tf

struct trapframe pmc_tf[MAXCPU]

Definition at line 100 of file kern_pmc.c.

Macros

Functions

Variables

Macro Definition Documentation

◆ PMC_KERNEL_VERSION

Function Documentation

◆ __FBSDID()

◆ DPCPU_DEFINE()

◆ init_hwpmc()

◆ MALLOC_DECLARE()

◆ MALLOC_DEFINE() [1/2]

◆ MALLOC_DEFINE() [2/2]

◆ MTX_SYSINIT()

◆ pmc_cpu_is_active()

◆ pmc_cpu_is_disabled()

◆ pmc_cpu_is_present()

◆ pmc_cpu_is_primary()

◆ pmc_cpu_max()

◆ pmc_soft_ev_acquire()

◆ pmc_soft_ev_deregister()

◆ pmc_soft_ev_register()

◆ pmc_soft_ev_release()

◆ pmc_soft_namecleanup()

◆ SX_SYSINIT()

◆ SYSCTL_INT()

◆ SYSCTL_NODE()

◆ SYSINIT()

Variable Documentation

◆ pmc_dom_hdrs

◆ pmc_hook

◆ pmc_intr

◆ pmc_kernel_version

◆ pmc_softevents

◆ pmc_softs

◆ pmc_softs_count

◆ pmc_softs_mtx

◆ pmc_ss_count

◆ pmc_sx

◆ pmc_tf