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Merge branch 'perfcounters-rename-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

Browse Source 
* 'perfcounters-rename-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Tidy up after the big rename
  perf: Do the big rename: Performance Counters -> Performance Events
  perf_counter: Rename 'event' to event_id/hw_event
  perf_counter: Rename list_entry -> group_entry, counter_list -> group_list

Manually resolved some fairly trivial conflicts with the tracing tree in
include/trace/ftrace.h and kernel/trace/trace_syscalls.c.
This commit is contained in:
Linus Torvalds 2009-09-21 09:15:07 -07:00
commit 43c1266ce4
134 changed files with 3257 additions and 2800 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
MAINTAINERS
View File

@ -4000,7 +4000,7 @@ S: Maintained
F: include/linux/delayacct.h
F: kernel/delayacct.c
PERFORMANCE COUNTER SUBSYSTEM
PERFORMANCE EVENTS SUBSYSTEM
M: Peter Zijlstra <a.p.zijlstra@chello.nl>
M: Paul Mackerras <paulus@samba.org>
M: Ingo Molnar <mingo@elte.hu>

2
arch/arm/include/asm/unistd.h
View File

@ -390,7 +390,7 @@
#define __NR_preadv (__NR_SYSCALL_BASE+361)
#define __NR_pwritev (__NR_SYSCALL_BASE+362)
#define __NR_rt_tgsigqueueinfo (__NR_SYSCALL_BASE+363)
#define __NR_perf_counter_open (__NR_SYSCALL_BASE+364)
#define __NR_perf_event_open (__NR_SYSCALL_BASE+364)
/*
* The following SWIs are ARM private.

2
arch/arm/kernel/calls.S
View File

@ -373,7 +373,7 @@
CALL(sys_preadv)
CALL(sys_pwritev)
CALL(sys_rt_tgsigqueueinfo)
CALL(sys_perf_counter_open)
CALL(sys_perf_event_open)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted

2
arch/blackfin/include/asm/unistd.h
View File

@ -381,7 +381,7 @@
#define __NR_preadv 366
#define __NR_pwritev 367
#define __NR_rt_tgsigqueueinfo 368
#define __NR_perf_counter_open 369
#define __NR_perf_event_open 369
#define __NR_syscall 370
#define NR_syscalls __NR_syscall

2
arch/blackfin/mach-common/entry.S
View File

@ -1620,7 +1620,7 @@ ENTRY(_sys_call_table)
.long _sys_preadv
.long _sys_pwritev
.long _sys_rt_tgsigqueueinfo
.long _sys_perf_counter_open
.long _sys_perf_event_open
.rept NR_syscalls-(.-_sys_call_table)/4
.long _sys_ni_syscall

2
arch/frv/Kconfig
View File

@ -7,7 +7,7 @@ config FRV
default y
select HAVE_IDE
select HAVE_ARCH_TRACEHOOK
select HAVE_PERF_COUNTERS
select HAVE_PERF_EVENTS
config ZONE_DMA
bool

10
arch/frv/include/asm/perf_counter.h → arch/frv/include/asm/perf_event.h
View File

@ -1,4 +1,4 @@
/* FRV performance counter support
/* FRV performance event support
*
* Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
@ -9,9 +9,9 @@
* 2 of the Licence, or (at your option) any later version.
*/
#ifndef _ASM_PERF_COUNTER_H
#define _ASM_PERF_COUNTER_H
#ifndef _ASM_PERF_EVENT_H
#define _ASM_PERF_EVENT_H
#define PERF_COUNTER_INDEX_OFFSET 0
#define PERF_EVENT_INDEX_OFFSET 0
#endif /* _ASM_PERF_COUNTER_H */
#endif /* _ASM_PERF_EVENT_H */

2
arch/frv/include/asm/unistd.h
View File

@ -342,7 +342,7 @@
#define __NR_preadv 333
#define __NR_pwritev 334
#define __NR_rt_tgsigqueueinfo 335
#define __NR_perf_counter_open 336
#define __NR_perf_event_open 336
#ifdef __KERNEL__

2
arch/frv/kernel/entry.S
View File

@ -1525,6 +1525,6 @@ sys_call_table:
.long sys_preadv
.long sys_pwritev
.long sys_rt_tgsigqueueinfo /* 335 */
.long sys_perf_counter_open
.long sys_perf_event_open
syscall_table_size = (. - sys_call_table)

2
arch/frv/lib/Makefile
View File

@ -5,4 +5,4 @@
lib-y := \
__ashldi3.o __lshrdi3.o __muldi3.o __ashrdi3.o __negdi2.o __ucmpdi2.o \
checksum.o memcpy.o memset.o atomic-ops.o atomic64-ops.o \
outsl_ns.o outsl_sw.o insl_ns.o insl_sw.o cache.o perf_counter.o
outsl_ns.o outsl_sw.o insl_ns.o insl_sw.o cache.o perf_event.o

8
arch/frv/lib/perf_counter.c → arch/frv/lib/perf_event.c
View File

@ -1,4 +1,4 @@
/* Performance counter handling
/* Performance event handling
*
* Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
@ -9,11 +9,11 @@
* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
/*
* mark the performance counter as pending
* mark the performance event as pending
*/
void set_perf_counter_pending(void)
void set_perf_event_pending(void)
{
}

2
arch/m68k/include/asm/unistd.h
View File

@ -335,7 +335,7 @@
#define __NR_preadv 329
#define __NR_pwritev 330
#define __NR_rt_tgsigqueueinfo 331
#define __NR_perf_counter_open 332
#define __NR_perf_event_open 332
#ifdef __KERNEL__

2
arch/m68k/kernel/entry.S
View File

@ -756,5 +756,5 @@ sys_call_table:
.long sys_preadv
.long sys_pwritev /* 330 */
.long sys_rt_tgsigqueueinfo
.long sys_perf_counter_open
.long sys_perf_event_open

2
arch/m68knommu/kernel/syscalltable.S
View File

@ -350,7 +350,7 @@ ENTRY(sys_call_table)
.long sys_preadv
.long sys_pwritev /* 330 */
.long sys_rt_tgsigqueueinfo
.long sys_perf_counter_open
.long sys_perf_event_open
.rept NR_syscalls-(.-sys_call_table)/4
.long sys_ni_syscall

2
arch/microblaze/include/asm/unistd.h
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@ -381,7 +381,7 @@
#define __NR_preadv 363 /* new */
#define __NR_pwritev 364 /* new */
#define __NR_rt_tgsigqueueinfo 365 /* new */
#define __NR_perf_counter_open 366 /* new */
#define __NR_perf_event_open 366 /* new */
#define __NR_syscalls 367

2
arch/microblaze/kernel/syscall_table.S
View File

@ -370,4 +370,4 @@ ENTRY(sys_call_table)
.long sys_ni_syscall
.long sys_ni_syscall
.long sys_rt_tgsigqueueinfo /* 365 */
.long sys_perf_counter_open
.long sys_perf_event_open

6
arch/mips/include/asm/unistd.h
View File

@ -353,7 +353,7 @@
#define __NR_preadv (__NR_Linux + 330)
#define __NR_pwritev (__NR_Linux + 331)
#define __NR_rt_tgsigqueueinfo (__NR_Linux + 332)
#define __NR_perf_counter_open (__NR_Linux + 333)
#define __NR_perf_event_open (__NR_Linux + 333)
#define __NR_accept4 (__NR_Linux + 334)
/*
@ -664,7 +664,7 @@
#define __NR_preadv (__NR_Linux + 289)
#define __NR_pwritev (__NR_Linux + 290)
#define __NR_rt_tgsigqueueinfo (__NR_Linux + 291)
#define __NR_perf_counter_open (__NR_Linux + 292)
#define __NR_perf_event_open (__NR_Linux + 292)
#define __NR_accept4 (__NR_Linux + 293)
/*
@ -979,7 +979,7 @@
#define __NR_preadv (__NR_Linux + 293)
#define __NR_pwritev (__NR_Linux + 294)
#define __NR_rt_tgsigqueueinfo (__NR_Linux + 295)
#define __NR_perf_counter_open (__NR_Linux + 296)
#define __NR_perf_event_open (__NR_Linux + 296)
#define __NR_accept4 (__NR_Linux + 297)
/*

2
arch/mips/kernel/scall32-o32.S
View File

@ -581,7 +581,7 @@ einval: li v0, -ENOSYS
sys sys_preadv 6 /* 4330 */
sys sys_pwritev 6
sys sys_rt_tgsigqueueinfo 4
sys sys_perf_counter_open 5
sys sys_perf_event_open 5
sys sys_accept4 4
.endm

2
arch/mips/kernel/scall64-64.S
View File

@ -418,6 +418,6 @@ sys_call_table:
PTR sys_preadv
PTR sys_pwritev /* 5390 */
PTR sys_rt_tgsigqueueinfo
PTR sys_perf_counter_open
PTR sys_perf_event_open
PTR sys_accept4
.size sys_call_table,.-sys_call_table

2
arch/mips/kernel/scall64-n32.S
View File

@ -416,6 +416,6 @@ EXPORT(sysn32_call_table)
PTR sys_preadv
PTR sys_pwritev
PTR compat_sys_rt_tgsigqueueinfo /* 5295 */
PTR sys_perf_counter_open
PTR sys_perf_event_open
PTR sys_accept4
.size sysn32_call_table,.-sysn32_call_table

2
arch/mips/kernel/scall64-o32.S
View File

@ -536,6 +536,6 @@ sys_call_table:
PTR compat_sys_preadv /* 4330 */
PTR compat_sys_pwritev
PTR compat_sys_rt_tgsigqueueinfo
PTR sys_perf_counter_open
PTR sys_perf_event_open
PTR sys_accept4
.size sys_call_table,.-sys_call_table

2
arch/mn10300/include/asm/unistd.h
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@ -347,7 +347,7 @@
#define __NR_preadv 334
#define __NR_pwritev 335
#define __NR_rt_tgsigqueueinfo 336
#define __NR_perf_counter_open 337
#define __NR_perf_event_open 337
#ifdef __KERNEL__

2
arch/mn10300/kernel/entry.S
View File

@ -723,7 +723,7 @@ ENTRY(sys_call_table)
.long sys_preadv
.long sys_pwritev /* 335 */
.long sys_rt_tgsigqueueinfo
.long sys_perf_counter_open
.long sys_perf_event_open
nr_syscalls=(.-sys_call_table)/4

2
arch/parisc/Kconfig
View File

@ -16,7 +16,7 @@ config PARISC
select RTC_DRV_GENERIC
select INIT_ALL_POSSIBLE
select BUG
select HAVE_PERF_COUNTERS
select HAVE_PERF_EVENTS
select GENERIC_ATOMIC64 if !64BIT
help
The PA-RISC microprocessor is designed by Hewlett-Packard and used

7
arch/parisc/include/asm/perf_counter.h
View File

@ -1,7 +0,0 @@
#ifndef __ASM_PARISC_PERF_COUNTER_H
#define __ASM_PARISC_PERF_COUNTER_H
/* parisc only supports software counters through this interface. */
static inline void set_perf_counter_pending(void) { }
#endif /* __ASM_PARISC_PERF_COUNTER_H */

7
arch/parisc/include/asm/perf_event.h Normal file
View File

@ -0,0 +1,7 @@
#ifndef __ASM_PARISC_PERF_EVENT_H
#define __ASM_PARISC_PERF_EVENT_H
/* parisc only supports software events through this interface. */
static inline void set_perf_event_pending(void) { }
#endif /* __ASM_PARISC_PERF_EVENT_H */

4
arch/parisc/include/asm/unistd.h
View File

@ -810,9 +810,9 @@
#define __NR_preadv (__NR_Linux + 315)
#define __NR_pwritev (__NR_Linux + 316)
#define __NR_rt_tgsigqueueinfo (__NR_Linux + 317)
#define __NR_perf_counter_open (__NR_Linux + 318)
#define __NR_perf_event_open (__NR_Linux + 318)
#define __NR_Linux_syscalls (__NR_perf_counter_open + 1)
#define __NR_Linux_syscalls (__NR_perf_event_open + 1)
#define __IGNORE_select /* newselect */

2
arch/parisc/kernel/syscall_table.S
View File

@ -416,7 +416,7 @@
ENTRY_COMP(preadv) /* 315 */
ENTRY_COMP(pwritev)
ENTRY_COMP(rt_tgsigqueueinfo)
ENTRY_SAME(perf_counter_open)
ENTRY_SAME(perf_event_open)
/* Nothing yet */

2
arch/powerpc/Kconfig
View File

@ -129,7 +129,7 @@ config PPC
select HAVE_OPROFILE
select HAVE_SYSCALL_WRAPPERS if PPC64
select GENERIC_ATOMIC64 if PPC32
select HAVE_PERF_COUNTERS
select HAVE_PERF_EVENTS
config EARLY_PRINTK
bool

22
arch/powerpc/include/asm/hw_irq.h
View File

@ -135,43 +135,43 @@ static inline int irqs_disabled_flags(unsigned long flags)
*/
struct irq_chip;
#ifdef CONFIG_PERF_COUNTERS
#ifdef CONFIG_PERF_EVENTS
#ifdef CONFIG_PPC64
static inline unsigned long test_perf_counter_pending(void)
static inline unsigned long test_perf_event_pending(void)
{
unsigned long x;
asm volatile("lbz %0,%1(13)"
: "=r" (x)
: "i" (offsetof(struct paca_struct, perf_counter_pending)));
: "i" (offsetof(struct paca_struct, perf_event_pending)));
return x;
}
static inline void set_perf_counter_pending(void)
static inline void set_perf_event_pending(void)
{
asm volatile("stb %0,%1(13)" : :
"r" (1),
"i" (offsetof(struct paca_struct, perf_counter_pending)));
"i" (offsetof(struct paca_struct, perf_event_pending)));
}
static inline void clear_perf_counter_pending(void)
static inline void clear_perf_event_pending(void)
{
asm volatile("stb %0,%1(13)" : :
"r" (0),
"i" (offsetof(struct paca_struct, perf_counter_pending)));
"i" (offsetof(struct paca_struct, perf_event_pending)));
}
#endif /* CONFIG_PPC64 */
#else /* CONFIG_PERF_COUNTERS */
#else /* CONFIG_PERF_EVENTS */
static inline unsigned long test_perf_counter_pending(void)
static inline unsigned long test_perf_event_pending(void)
{
return 0;
}
static inline void clear_perf_counter_pending(void) {}
#endif /* CONFIG_PERF_COUNTERS */
static inline void clear_perf_event_pending(void) {}
#endif /* CONFIG_PERF_EVENTS */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_HW_IRQ_H */

2
arch/powerpc/include/asm/paca.h
View File

@ -122,7 +122,7 @@ struct paca_struct {
u8 soft_enabled; /* irq soft-enable flag */
u8 hard_enabled; /* set if irqs are enabled in MSR */
u8 io_sync; /* writel() needs spin_unlock sync */
u8 perf_counter_pending; /* PM interrupt while soft-disabled */
u8 perf_event_pending; /* PM interrupt while soft-disabled */
/* Stuff for accurate time accounting */
u64 user_time; /* accumulated usermode TB ticks */

26
arch/powerpc/include/asm/perf_counter.h → arch/powerpc/include/asm/perf_event.h
View File

@ -1,5 +1,5 @@
/*
* Performance counter support - PowerPC-specific definitions.
* Performance event support - PowerPC-specific definitions.
*
* Copyright 2008-2009 Paul Mackerras, IBM Corporation.
*
@ -12,9 +12,9 @@
#include <asm/hw_irq.h>
#define MAX_HWCOUNTERS 8
#define MAX_HWEVENTS 8
#define MAX_EVENT_ALTERNATIVES 8
#define MAX_LIMITED_HWCOUNTERS 2
#define MAX_LIMITED_HWEVENTS 2
/*
* This struct provides the constants and functions needed to
@ -22,18 +22,18 @@
*/
struct power_pmu {
const char *name;
int n_counter;
int n_event;
int max_alternatives;
unsigned long add_fields;
unsigned long test_adder;
int (*compute_mmcr)(u64 events[], int n_ev,
unsigned int hwc[], unsigned long mmcr[]);
int (*get_constraint)(u64 event, unsigned long *mskp,
int (*get_constraint)(u64 event_id, unsigned long *mskp,
unsigned long *valp);
int (*get_alternatives)(u64 event, unsigned int flags,
int (*get_alternatives)(u64 event_id, unsigned int flags,
u64 alt[]);
void (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);
int (*limited_pmc_event)(u64 event);
int (*limited_pmc_event)(u64 event_id);
u32 flags;
int n_generic;
int *generic_events;
@ -61,10 +61,10 @@ struct pt_regs;
extern unsigned long perf_misc_flags(struct pt_regs *regs);
extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
#define PERF_COUNTER_INDEX_OFFSET 1
#define PERF_EVENT_INDEX_OFFSET 1
/*
* Only override the default definitions in include/linux/perf_counter.h
* Only override the default definitions in include/linux/perf_event.h
* if we have hardware PMU support.
*/
#ifdef CONFIG_PPC_PERF_CTRS
@ -73,14 +73,14 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
/*
* The power_pmu.get_constraint function returns a 32/64-bit value and
* a 32/64-bit mask that express the constraints between this event and
* a 32/64-bit mask that express the constraints between this event_id and
* other events.
*
* The value and mask are divided up into (non-overlapping) bitfields
* of three different types:
*
* Select field: this expresses the constraint that some set of bits
* in MMCR* needs to be set to a specific value for this event. For a
* in MMCR* needs to be set to a specific value for this event_id. For a
* select field, the mask contains 1s in every bit of the field, and
* the value contains a unique value for each possible setting of the
* MMCR* bits. The constraint checking code will ensure that two events
@ -102,9 +102,9 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
* possible.) For N classes, the field is N+1 bits wide, and each class
* is assigned one bit from the least-significant N bits. The mask has
* only the most-significant bit set, and the value has only the bit
* for the event's class set. The test_adder has the least significant
* for the event_id's class set. The test_adder has the least significant
* bit set in the field.
*
* If an event is not subject to the constraint expressed by a particular
* If an event_id is not subject to the constraint expressed by a particular
* field, then it will have 0 in both the mask and value for that field.
*/

2
arch/powerpc/include/asm/systbl.h
View File

@ -322,7 +322,7 @@ SYSCALL_SPU(epoll_create1)
SYSCALL_SPU(dup3)
SYSCALL_SPU(pipe2)
SYSCALL(inotify_init1)
SYSCALL_SPU(perf_counter_open)
SYSCALL_SPU(perf_event_open)
COMPAT_SYS_SPU(preadv)
COMPAT_SYS_SPU(pwritev)
COMPAT_SYS(rt_tgsigqueueinfo)

2
arch/powerpc/include/asm/unistd.h
View File

@ -341,7 +341,7 @@
#define __NR_dup3 316
#define __NR_pipe2 317
#define __NR_inotify_init1 318
#define __NR_perf_counter_open 319
#define __NR_perf_event_open 319
#define __NR_preadv 320
#define __NR_pwritev 321
#define __NR_rt_tgsigqueueinfo 322

2
arch/powerpc/kernel/Makefile
View File

@ -97,7 +97,7 @@ obj64-$(CONFIG_AUDIT) += compat_audit.o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
obj-$(CONFIG_PPC_PERF_CTRS) += perf_counter.o perf_callchain.o
obj-$(CONFIG_PPC_PERF_CTRS) += perf_event.o perf_callchain.o
obj64-$(CONFIG_PPC_PERF_CTRS) += power4-pmu.o ppc970-pmu.o power5-pmu.o \
power5+-pmu.o power6-pmu.o power7-pmu.o
obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o

2
arch/powerpc/kernel/asm-offsets.c
View File

@ -133,7 +133,7 @@ int main(void)
DEFINE(PACAKMSR, offsetof(struct paca_struct, kernel_msr));
DEFINE(PACASOFTIRQEN, offsetof(struct paca_struct, soft_enabled));
DEFINE(PACAHARDIRQEN, offsetof(struct paca_struct, hard_enabled));
DEFINE(PACAPERFPEND, offsetof(struct paca_struct, perf_counter_pending));
DEFINE(PACAPERFPEND, offsetof(struct paca_struct, perf_event_pending));
DEFINE(PACACONTEXTID, offsetof(struct paca_struct, context.id));
#ifdef CONFIG_PPC_MM_SLICES
DEFINE(PACALOWSLICESPSIZE, offsetof(struct paca_struct,

8
arch/powerpc/kernel/entry_64.S
View File

@ -556,14 +556,14 @@ ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES)
2:
TRACE_AND_RESTORE_IRQ(r5);
#ifdef CONFIG_PERF_COUNTERS
/* check paca->perf_counter_pending if we're enabling ints */
#ifdef CONFIG_PERF_EVENTS
/* check paca->perf_event_pending if we're enabling ints */
lbz r3,PACAPERFPEND(r13)
and. r3,r3,r5
beq 27f
bl .perf_counter_do_pending
bl .perf_event_do_pending
27:
#endif /* CONFIG_PERF_COUNTERS */
#endif /* CONFIG_PERF_EVENTS */
/* extract EE bit and use it to restore paca->hard_enabled */
ld r3,_MSR(r1)

8
arch/powerpc/kernel/irq.c
View File

@ -53,7 +53,7 @@
#include <linux/bootmem.h>
#include <linux/pci.h>
#include <linux/debugfs.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@ -138,9 +138,9 @@ notrace void raw_local_irq_restore(unsigned long en)
}
#endif /* CONFIG_PPC_STD_MMU_64 */
if (test_perf_counter_pending()) {
clear_perf_counter_pending();
perf_counter_do_pending();
if (test_perf_event_pending()) {
clear_perf_event_pending();
perf_event_do_pending();
}
/*

2
arch/powerpc/kernel/mpc7450-pmu.c
View File

@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/string.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <asm/reg.h>
#include <asm/cputable.h>

2
arch/powerpc/kernel/perf_callchain.c
View File

@ -10,7 +10,7 @@
*/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/percpu.h>
#include <linux/uaccess.h>
#include <linux/mm.h>

580
arch/powerpc/kernel/perf_counter.c → arch/powerpc/kernel/perf_event.c
View File

File diff suppressed because it is too large Load Diff

2
arch/powerpc/kernel/power4-pmu.c
View File

@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/string.h>
#include <asm/reg.h>
#include <asm/cputable.h>

2
arch/powerpc/kernel/power5+-pmu.c
View File

@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/string.h>
#include <asm/reg.h>
#include <asm/cputable.h>

2
arch/powerpc/kernel/power5-pmu.c
View File

@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/string.h>
#include <asm/reg.h>
#include <asm/cputable.h>

2
arch/powerpc/kernel/power6-pmu.c
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@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/string.h>
#include <asm/reg.h>
#include <asm/cputable.h>

2
arch/powerpc/kernel/power7-pmu.c
View File

@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/kernel.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/string.h>
#include <asm/reg.h>
#include <asm/cputable.h>

2
arch/powerpc/kernel/ppc970-pmu.c
View File

@ -9,7 +9,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/string.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <asm/reg.h>
#include <asm/cputable.h>

30
arch/powerpc/kernel/time.c
View File

@ -53,7 +53,7 @@
#include <linux/posix-timers.h>
#include <linux/irq.h>
#include <linux/delay.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <asm/io.h>
#include <asm/processor.h>
@ -527,25 +527,25 @@ void __init iSeries_time_init_early(void)
}
#endif /* CONFIG_PPC_ISERIES */
#if defined(CONFIG_PERF_COUNTERS) && defined(CONFIG_PPC32)
DEFINE_PER_CPU(u8, perf_counter_pending);
#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_PPC32)
DEFINE_PER_CPU(u8, perf_event_pending);
void set_perf_counter_pending(void)
void set_perf_event_pending(void)
{
get_cpu_var(perf_counter_pending) = 1;
get_cpu_var(perf_event_pending) = 1;
set_dec(1);
put_cpu_var(perf_counter_pending);
put_cpu_var(perf_event_pending);
}
#define test_perf_counter_pending() __get_cpu_var(perf_counter_pending)
#define clear_perf_counter_pending() __get_cpu_var(perf_counter_pending) = 0
#define test_perf_event_pending() __get_cpu_var(perf_event_pending)
#define clear_perf_event_pending() __get_cpu_var(perf_event_pending) = 0
#else /* CONFIG_PERF_COUNTERS && CONFIG_PPC32 */
#else /* CONFIG_PERF_EVENTS && CONFIG_PPC32 */
#define test_perf_counter_pending() 0
#define clear_perf_counter_pending()
#define test_perf_event_pending() 0
#define clear_perf_event_pending()
#endif /* CONFIG_PERF_COUNTERS && CONFIG_PPC32 */
#endif /* CONFIG_PERF_EVENTS && CONFIG_PPC32 */
/*
* For iSeries shared processors, we have to let the hypervisor
@ -573,9 +573,9 @@ void timer_interrupt(struct pt_regs * regs)
set_dec(DECREMENTER_MAX);
#ifdef CONFIG_PPC32
if (test_perf_counter_pending()) {
clear_perf_counter_pending();
perf_counter_do_pending();
if (test_perf_event_pending()) {
clear_perf_event_pending();
perf_event_do_pending();
}
if (atomic_read(&ppc_n_lost_interrupts) != 0)
do_IRQ(regs);

8
arch/powerpc/mm/fault.c
View File

@ -29,7 +29,7 @@
#include <linux/module.h>
#include <linux/kprobes.h>
#include <linux/kdebug.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <asm/firmware.h>
#include <asm/page.h>
@ -171,7 +171,7 @@ int __kprobes do_page_fault(struct pt_regs *regs, unsigned long address,
die("Weird page fault", regs, SIGSEGV);
}
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
/* When running in the kernel we expect faults to occur only to
* addresses in user space. All other faults represent errors in the
@ -312,7 +312,7 @@ good_area:
}
if (ret & VM_FAULT_MAJOR) {
current->maj_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
regs, address);
#ifdef CONFIG_PPC_SMLPAR
if (firmware_has_feature(FW_FEATURE_CMO)) {
@ -323,7 +323,7 @@ good_area:
#endif
} else {
current->min_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
regs, address);
}
up_read(&mm->mmap_sem);

4
arch/powerpc/platforms/Kconfig.cputype
View File

@ -280,9 +280,9 @@ config PPC_HAVE_PMU_SUPPORT
config PPC_PERF_CTRS
def_bool y
depends on PERF_COUNTERS && PPC_HAVE_PMU_SUPPORT
depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT
help
This enables the powerpc-specific perf_counter back-end.
This enables the powerpc-specific perf_event back-end.
config SMP
depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE

2
arch/s390/Kconfig
View File

@ -94,7 +94,7 @@ config S390
select HAVE_KVM if 64BIT
select HAVE_ARCH_TRACEHOOK
select INIT_ALL_POSSIBLE
select HAVE_PERF_COUNTERS
select HAVE_PERF_EVENTS
config SCHED_OMIT_FRAME_POINTER
bool

10
arch/s390/include/asm/perf_counter.h
View File

@ -1,10 +0,0 @@
/*
* Performance counter support - s390 specific definitions.
*
* Copyright 2009 Martin Schwidefsky, IBM Corporation.
*/
static inline void set_perf_counter_pending(void) {}
static inline void clear_perf_counter_pending(void) {}
#define PERF_COUNTER_INDEX_OFFSET 0

10
arch/s390/include/asm/perf_event.h Normal file
View File

@ -0,0 +1,10 @@
/*
* Performance event support - s390 specific definitions.
*
* Copyright 2009 Martin Schwidefsky, IBM Corporation.
*/
static inline void set_perf_event_pending(void) {}
static inline void clear_perf_event_pending(void) {}
#define PERF_EVENT_INDEX_OFFSET 0

2
arch/s390/include/asm/unistd.h
View File

@ -268,7 +268,7 @@
#define __NR_preadv 328
#define __NR_pwritev 329
#define __NR_rt_tgsigqueueinfo 330
#define __NR_perf_counter_open 331
#define __NR_perf_event_open 331
#define NR_syscalls 332
/*

8
arch/s390/kernel/compat_wrapper.S
View File

@ -1832,11 +1832,11 @@ compat_sys_rt_tgsigqueueinfo_wrapper:
llgtr %r5,%r5 # struct compat_siginfo *
jg compat_sys_rt_tgsigqueueinfo_wrapper # branch to system call
.globl sys_perf_counter_open_wrapper
sys_perf_counter_open_wrapper:
llgtr %r2,%r2 # const struct perf_counter_attr *
.globl sys_perf_event_open_wrapper
sys_perf_event_open_wrapper:
llgtr %r2,%r2 # const struct perf_event_attr *
lgfr %r3,%r3 # pid_t
lgfr %r4,%r4 # int
lgfr %r5,%r5 # int
llgfr %r6,%r6 # unsigned long
jg sys_perf_counter_open # branch to system call
jg sys_perf_event_open # branch to system call

2
arch/s390/kernel/syscalls.S
View File

@ -339,4 +339,4 @@ SYSCALL(sys_epoll_create1,sys_epoll_create1,sys_epoll_create1_wrapper)
SYSCALL(sys_preadv,sys_preadv,compat_sys_preadv_wrapper)
SYSCALL(sys_pwritev,sys_pwritev,compat_sys_pwritev_wrapper)
SYSCALL(sys_rt_tgsigqueueinfo,sys_rt_tgsigqueueinfo,compat_sys_rt_tgsigqueueinfo_wrapper) /* 330 */
SYSCALL(sys_perf_counter_open,sys_perf_counter_open,sys_perf_counter_open_wrapper)
SYSCALL(sys_perf_event_open,sys_perf_event_open,sys_perf_event_open_wrapper)

8
arch/s390/mm/fault.c
View File

@ -10,7 +10,7 @@
* Copyright (C) 1995 Linus Torvalds
*/
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/kernel.h>
@ -306,7 +306,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int write)
* interrupts again and then search the VMAs
*/
local_irq_enable();
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
down_read(&mm->mmap_sem);
si_code = SEGV_MAPERR;
@ -366,11 +366,11 @@ good_area:
}
if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
regs, address);
} else {
tsk->min_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
regs, address);
}
up_read(&mm->mmap_sem);

2
arch/sh/Kconfig
View File

@ -16,7 +16,7 @@ config SUPERH
select HAVE_IOREMAP_PROT if MMU
select HAVE_ARCH_TRACEHOOK
select HAVE_DMA_API_DEBUG
select HAVE_PERF_COUNTERS
select HAVE_PERF_EVENTS
select HAVE_KERNEL_GZIP
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_LZMA

9
arch/sh/include/asm/perf_counter.h
View File

@ -1,9 +0,0 @@
#ifndef __ASM_SH_PERF_COUNTER_H
#define __ASM_SH_PERF_COUNTER_H
/* SH only supports software counters through this interface. */
static inline void set_perf_counter_pending(void) {}
#define PERF_COUNTER_INDEX_OFFSET 0
#endif /* __ASM_SH_PERF_COUNTER_H */

9
arch/sh/include/asm/perf_event.h Normal file
View File

@ -0,0 +1,9 @@
#ifndef __ASM_SH_PERF_EVENT_H
#define __ASM_SH_PERF_EVENT_H
/* SH only supports software events through this interface. */
static inline void set_perf_event_pending(void) {}
#define PERF_EVENT_INDEX_OFFSET 0
#endif /* __ASM_SH_PERF_EVENT_H */

2
arch/sh/include/asm/unistd_32.h
View File

@ -344,7 +344,7 @@
#define __NR_preadv 333
#define __NR_pwritev 334
#define __NR_rt_tgsigqueueinfo 335
#define __NR_perf_counter_open 336
#define __NR_perf_event_open 336
#define NR_syscalls 337

2
arch/sh/include/asm/unistd_64.h
View File

@ -384,7 +384,7 @@
#define __NR_preadv 361
#define __NR_pwritev 362
#define __NR_rt_tgsigqueueinfo 363
#define __NR_perf_counter_open 364
#define __NR_perf_event_open 364
#ifdef __KERNEL__

2
arch/sh/kernel/syscalls_32.S
View File

@ -352,4 +352,4 @@ ENTRY(sys_call_table)
.long sys_preadv
.long sys_pwritev
.long sys_rt_tgsigqueueinfo /* 335 */
.long sys_perf_counter_open
.long sys_perf_event_open

2
arch/sh/kernel/syscalls_64.S
View File

@ -390,4 +390,4 @@ sys_call_table:
.long sys_preadv
.long sys_pwritev
.long sys_rt_tgsigqueueinfo
.long sys_perf_counter_open
.long sys_perf_event_open

8
arch/sh/mm/fault_32.c
View File

@ -15,7 +15,7 @@
#include <linux/mm.h>
#include <linux/hardirq.h>
#include <linux/kprobes.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <asm/io_trapped.h>
#include <asm/system.h>
#include <asm/mmu_context.h>
@ -157,7 +157,7 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
if ((regs->sr & SR_IMASK) != SR_IMASK)
local_irq_enable();
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
/*
* If we're in an interrupt, have no user context or are running
@ -208,11 +208,11 @@ survive:
}
if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
regs, address);
} else {
tsk->min_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
regs, address);
}

8
arch/sh/mm/tlbflush_64.c
View File

@ -20,7 +20,7 @@
#include <linux/mman.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/interrupt.h>
#include <asm/system.h>
#include <asm/io.h>
@ -116,7 +116,7 @@ asmlinkage void do_page_fault(struct pt_regs *regs, unsigned long writeaccess,
/* Not an IO address, so reenable interrupts */
local_irq_enable();
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
/*
* If we're in an interrupt or have no user
@ -201,11 +201,11 @@ survive:
if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
regs, address);
} else {
tsk->min_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
regs, address);
}

4
arch/sparc/Kconfig
View File

@ -25,7 +25,7 @@ config SPARC
select ARCH_WANT_OPTIONAL_GPIOLIB
select RTC_CLASS
select RTC_DRV_M48T59
select HAVE_PERF_COUNTERS
select HAVE_PERF_EVENTS
select HAVE_DMA_ATTRS
select HAVE_DMA_API_DEBUG
@ -47,7 +47,7 @@ config SPARC64
select RTC_DRV_BQ4802
select RTC_DRV_SUN4V
select RTC_DRV_STARFIRE
select HAVE_PERF_COUNTERS
select HAVE_PERF_EVENTS
config ARCH_DEFCONFIG
string

14
arch/sparc/include/asm/perf_counter.h
View File

@ -1,14 +0,0 @@
#ifndef __ASM_SPARC_PERF_COUNTER_H
#define __ASM_SPARC_PERF_COUNTER_H
extern void set_perf_counter_pending(void);
#define PERF_COUNTER_INDEX_OFFSET 0
#ifdef CONFIG_PERF_COUNTERS
extern void init_hw_perf_counters(void);
#else
static inline void init_hw_perf_counters(void) { }
#endif
#endif

14
arch/sparc/include/asm/perf_event.h Normal file
View File

@ -0,0 +1,14 @@
#ifndef __ASM_SPARC_PERF_EVENT_H
#define __ASM_SPARC_PERF_EVENT_H
extern void set_perf_event_pending(void);
#define PERF_EVENT_INDEX_OFFSET 0
#ifdef CONFIG_PERF_EVENTS
extern void init_hw_perf_events(void);
#else
static inline void init_hw_perf_events(void) { }
#endif
#endif

2
arch/sparc/include/asm/unistd.h
View File

@ -395,7 +395,7 @@
#define __NR_preadv 324
#define __NR_pwritev 325
#define __NR_rt_tgsigqueueinfo 326
#define __NR_perf_counter_open 327
#define __NR_perf_event_open 327
#define NR_SYSCALLS 328

2
arch/sparc/kernel/Makefile
View File

@ -104,5 +104,5 @@ obj-$(CONFIG_AUDIT) += audit.o
audit--$(CONFIG_AUDIT) := compat_audit.o
obj-$(CONFIG_COMPAT) += $(audit--y)
pc--$(CONFIG_PERF_COUNTERS) := perf_counter.o
pc--$(CONFIG_PERF_EVENTS) := perf_event.o
obj-$(CONFIG_SPARC64) += $(pc--y)

4
arch/sparc/kernel/nmi.c
View File

@ -19,7 +19,7 @@
#include <linux/delay.h>
#include <linux/smp.h>
#include <asm/perf_counter.h>
#include <asm/perf_event.h>
#include <asm/ptrace.h>
#include <asm/local.h>
#include <asm/pcr.h>
@ -265,7 +265,7 @@ int __init nmi_init(void)
}
}
if (!err)
init_hw_perf_counters();
init_hw_perf_events();
return err;
}

10
arch/sparc/kernel/pcr.c
View File

@ -7,7 +7,7 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <asm/pil.h>
#include <asm/pcr.h>
@ -15,7 +15,7 @@
/* This code is shared between various users of the performance
* counters. Users will be oprofile, pseudo-NMI watchdog, and the
* perf_counter support layer.
* perf_event support layer.
*/
#define PCR_SUN4U_ENABLE (PCR_PIC_PRIV | PCR_STRACE | PCR_UTRACE)
@ -42,14 +42,14 @@ void deferred_pcr_work_irq(int irq, struct pt_regs *regs)
old_regs = set_irq_regs(regs);
irq_enter();
#ifdef CONFIG_PERF_COUNTERS
perf_counter_do_pending();
#ifdef CONFIG_PERF_EVENTS
perf_event_do_pending();
#endif
irq_exit();
set_irq_regs(old_regs);
}
void set_perf_counter_pending(void)
void set_perf_event_pending(void)
{
set_softint(1 << PIL_DEFERRED_PCR_WORK);
}

178
arch/sparc/kernel/perf_counter.c → arch/sparc/kernel/perf_event.c
View File

@ -1,8 +1,8 @@
/* Performance counter support for sparc64.
/* Performance event support for sparc64.
*
* Copyright (C) 2009 David S. Miller <davem@davemloft.net>
*
* This code is based almost entirely upon the x86 perf counter
* This code is based almost entirely upon the x86 perf event
* code, which is:
*
* Copyright (C) 2008 Thomas Gleixner <tglx@linutronix.de>
@ -12,7 +12,7 @@
* Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
*/
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/kprobes.h>
#include <linux/kernel.h>
#include <linux/kdebug.h>
@ -46,19 +46,19 @@
* normal code.
*/
#define MAX_HWCOUNTERS 2
#define MAX_HWEVENTS 2
#define MAX_PERIOD ((1UL << 32) - 1)
#define PIC_UPPER_INDEX 0
#define PIC_LOWER_INDEX 1
struct cpu_hw_counters {
struct perf_counter *counters[MAX_HWCOUNTERS];
unsigned long used_mask[BITS_TO_LONGS(MAX_HWCOUNTERS)];
unsigned long active_mask[BITS_TO_LONGS(MAX_HWCOUNTERS)];
struct cpu_hw_events {
struct perf_event *events[MAX_HWEVENTS];
unsigned long used_mask[BITS_TO_LONGS(MAX_HWEVENTS)];
unsigned long active_mask[BITS_TO_LONGS(MAX_HWEVENTS)];
int enabled;
};
DEFINE_PER_CPU(struct cpu_hw_counters, cpu_hw_counters) = { .enabled = 1, };
DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = { .enabled = 1, };
struct perf_event_map {
u16 encoding;
@ -87,9 +87,9 @@ static const struct perf_event_map ultra3i_perfmon_event_map[] = {
[PERF_COUNT_HW_CACHE_MISSES] = { 0x0009, PIC_UPPER },
};
static const struct perf_event_map *ultra3i_event_map(int event)
static const struct perf_event_map *ultra3i_event_map(int event_id)
{
return &ultra3i_perfmon_event_map[event];
return &ultra3i_perfmon_event_map[event_id];
}
static const struct sparc_pmu ultra3i_pmu = {
@ -111,9 +111,9 @@ static const struct perf_event_map niagara2_perfmon_event_map[] = {
[PERF_COUNT_HW_BRANCH_MISSES] = { 0x0202, PIC_UPPER | PIC_LOWER },
};
static const struct perf_event_map *niagara2_event_map(int event)
static const struct perf_event_map *niagara2_event_map(int event_id)
{
return &niagara2_perfmon_event_map[event];
return &niagara2_perfmon_event_map[event_id];
}
static const struct sparc_pmu niagara2_pmu = {
@ -130,13 +130,13 @@ static const struct sparc_pmu niagara2_pmu = {
static const struct sparc_pmu *sparc_pmu __read_mostly;
static u64 event_encoding(u64 event, int idx)
static u64 event_encoding(u64 event_id, int idx)
{
if (idx == PIC_UPPER_INDEX)
event <<= sparc_pmu->upper_shift;
event_id <<= sparc_pmu->upper_shift;
else
event <<= sparc_pmu->lower_shift;
return event;
event_id <<= sparc_pmu->lower_shift;
return event_id;
}
static u64 mask_for_index(int idx)
@ -151,7 +151,7 @@ static u64 nop_for_index(int idx)
sparc_pmu->lower_nop, idx);
}
static inline void sparc_pmu_enable_counter(struct hw_perf_counter *hwc,
static inline void sparc_pmu_enable_event(struct hw_perf_event *hwc,
int idx)
{
u64 val, mask = mask_for_index(idx);
@ -160,7 +160,7 @@ static inline void sparc_pmu_enable_counter(struct hw_perf_counter *hwc,
pcr_ops->write((val & ~mask) | hwc->config);
}
static inline void sparc_pmu_disable_counter(struct hw_perf_counter *hwc,
static inline void sparc_pmu_disable_event(struct hw_perf_event *hwc,
int idx)
{
u64 mask = mask_for_index(idx);
@ -172,7 +172,7 @@ static inline void sparc_pmu_disable_counter(struct hw_perf_counter *hwc,
void hw_perf_enable(void)
{
struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
u64 val;
int i;
@ -184,9 +184,9 @@ void hw_perf_enable(void)
val = pcr_ops->read();
for (i = 0; i < MAX_HWCOUNTERS; i++) {
struct perf_counter *cp = cpuc->counters[i];
struct hw_perf_counter *hwc;
for (i = 0; i < MAX_HWEVENTS; i++) {
struct perf_event *cp = cpuc->events[i];
struct hw_perf_event *hwc;
if (!cp)
continue;
@ -199,7 +199,7 @@ void hw_perf_enable(void)
void hw_perf_disable(void)
{
struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
u64 val;
if (!cpuc->enabled)
@ -241,8 +241,8 @@ static void write_pmc(int idx, u64 val)
write_pic(pic);
}
static int sparc_perf_counter_set_period(struct perf_counter *counter,
struct hw_perf_counter *hwc, int idx)
static int sparc_perf_event_set_period(struct perf_event *event,
struct hw_perf_event *hwc, int idx)
{
s64 left = atomic64_read(&hwc->period_left);
s64 period = hwc->sample_period;
@ -268,33 +268,33 @@ static int sparc_perf_counter_set_period(struct perf_counter *counter,
write_pmc(idx, (u64)(-left) & 0xffffffff);
perf_counter_update_userpage(counter);
perf_event_update_userpage(event);
return ret;
}
static int sparc_pmu_enable(struct perf_counter *counter)
static int sparc_pmu_enable(struct perf_event *event)
{
struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
struct hw_perf_counter *hwc = &counter->hw;
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
struct hw_perf_event *hwc = &event->hw;
int idx = hwc->idx;
if (test_and_set_bit(idx, cpuc->used_mask))
return -EAGAIN;
sparc_pmu_disable_counter(hwc, idx);
sparc_pmu_disable_event(hwc, idx);
cpuc->counters[idx] = counter;
cpuc->events[idx] = event;
set_bit(idx, cpuc->active_mask);
sparc_perf_counter_set_period(counter, hwc, idx);
sparc_pmu_enable_counter(hwc, idx);
perf_counter_update_userpage(counter);
sparc_perf_event_set_period(event, hwc, idx);
sparc_pmu_enable_event(hwc, idx);
perf_event_update_userpage(event);
return 0;
}
static u64 sparc_perf_counter_update(struct perf_counter *counter,
struct hw_perf_counter *hwc, int idx)
static u64 sparc_perf_event_update(struct perf_event *event,
struct hw_perf_event *hwc, int idx)
{
int shift = 64 - 32;
u64 prev_raw_count, new_raw_count;
@ -311,79 +311,79 @@ again:
delta = (new_raw_count << shift) - (prev_raw_count << shift);
delta >>= shift;
atomic64_add(delta, &counter->count);
atomic64_add(delta, &event->count);
atomic64_sub(delta, &hwc->period_left);
return new_raw_count;
}
static void sparc_pmu_disable(struct perf_counter *counter)
static void sparc_pmu_disable(struct perf_event *event)
{
struct cpu_hw_counters *cpuc = &__get_cpu_var(cpu_hw_counters);
struct hw_perf_counter *hwc = &counter->hw;
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
struct hw_perf_event *hwc = &event->hw;
int idx = hwc->idx;
clear_bit(idx, cpuc->active_mask);
sparc_pmu_disable_counter(hwc, idx);
sparc_pmu_disable_event(hwc, idx);
barrier();
sparc_perf_counter_update(counter, hwc, idx);
cpuc->counters[idx] = NULL;
sparc_perf_event_update(event, hwc, idx);
cpuc->events[idx] = NULL;
clear_bit(idx, cpuc->used_mask);
perf_counter_update_userpage(counter);
perf_event_update_userpage(event);
}
static void sparc_pmu_read(struct perf_counter *counter)
static void sparc_pmu_read(struct perf_event *event)
{
struct hw_perf_counter *hwc = &counter->hw;
sparc_perf_counter_update(counter, hwc, hwc->idx);
struct hw_perf_event *hwc = &event->hw;
sparc_perf_event_update(event, hwc, hwc->idx);
}
static void sparc_pmu_unthrottle(struct perf_counter *counter)
static void sparc_pmu_unthrottle(struct perf_event *event)
{
struct hw_perf_counter *hwc = &counter->hw;
sparc_pmu_enable_counter(hwc, hwc->idx);
struct hw_perf_event *hwc = &event->hw;
sparc_pmu_enable_event(hwc, hwc->idx);
}
static atomic_t active_counters = ATOMIC_INIT(0);
static atomic_t active_events = ATOMIC_INIT(0);
static DEFINE_MUTEX(pmc_grab_mutex);
void perf_counter_grab_pmc(void)
void perf_event_grab_pmc(void)
{
if (atomic_inc_not_zero(&active_counters))
if (atomic_inc_not_zero(&active_events))
return;
mutex_lock(&pmc_grab_mutex);
if (atomic_read(&active_counters) == 0) {
if (atomic_read(&active_events) == 0) {
if (atomic_read(&nmi_active) > 0) {
on_each_cpu(stop_nmi_watchdog, NULL, 1);
BUG_ON(atomic_read(&nmi_active) != 0);
}
atomic_inc(&active_counters);
atomic_inc(&active_events);
}
mutex_unlock(&pmc_grab_mutex);
}
void perf_counter_release_pmc(void)
void perf_event_release_pmc(void)
{
if (atomic_dec_and_mutex_lock(&active_counters, &pmc_grab_mutex)) {
if (atomic_dec_and_mutex_lock(&active_events, &pmc_grab_mutex)) {
if (atomic_read(&nmi_active) == 0)
on_each_cpu(start_nmi_watchdog, NULL, 1);
mutex_unlock(&pmc_grab_mutex);
}
}
static void hw_perf_counter_destroy(struct perf_counter *counter)
static void hw_perf_event_destroy(struct perf_event *event)
{
perf_counter_release_pmc();
perf_event_release_pmc();
}
static int __hw_perf_counter_init(struct perf_counter *counter)
static int __hw_perf_event_init(struct perf_event *event)
{
struct perf_counter_attr *attr = &counter->attr;
struct hw_perf_counter *hwc = &counter->hw;
struct perf_event_attr *attr = &event->attr;
struct hw_perf_event *hwc = &event->hw;
const struct perf_event_map *pmap;
u64 enc;
@ -396,8 +396,8 @@ static int __hw_perf_counter_init(struct perf_counter *counter)
if (attr->config >= sparc_pmu->max_events)
return -EINVAL;
perf_counter_grab_pmc();
counter->destroy = hw_perf_counter_destroy;
perf_event_grab_pmc();
event->destroy = hw_perf_event_destroy;
/* We save the enable bits in the config_base. So to
* turn off sampling just write 'config', and to enable
@ -439,16 +439,16 @@ static const struct pmu pmu = {
.unthrottle = sparc_pmu_unthrottle,
};
const struct pmu *hw_perf_counter_init(struct perf_counter *counter)
const struct pmu *hw_perf_event_init(struct perf_event *event)
{
int err = __hw_perf_counter_init(counter);
int err = __hw_perf_event_init(event);
if (err)
return ERR_PTR(err);
return &pmu;
}
void perf_counter_print_debug(void)
void perf_event_print_debug(void)
{
unsigned long flags;
u64 pcr, pic;
@ -471,16 +471,16 @@ void perf_counter_print_debug(void)
local_irq_restore(flags);
}
static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
static int __kprobes perf_event_nmi_handler(struct notifier_block *self,
unsigned long cmd, void *__args)
{
struct die_args *args = __args;
struct perf_sample_data data;
struct cpu_hw_counters *cpuc;
struct cpu_hw_events *cpuc;
struct pt_regs *regs;
int idx;
if (!atomic_read(&active_counters))
if (!atomic_read(&active_events))
return NOTIFY_DONE;
switch (cmd) {
@ -495,32 +495,32 @@ static int __kprobes perf_counter_nmi_handler(struct notifier_block *self,
data.addr = 0;
cpuc = &__get_cpu_var(cpu_hw_counters);
for (idx = 0; idx < MAX_HWCOUNTERS; idx++) {
struct perf_counter *counter = cpuc->counters[idx];
struct hw_perf_counter *hwc;
cpuc = &__get_cpu_var(cpu_hw_events);
for (idx = 0; idx < MAX_HWEVENTS; idx++) {
struct perf_event *event = cpuc->events[idx];
struct hw_perf_event *hwc;
u64 val;
if (!test_bit(idx, cpuc->active_mask))
continue;
hwc = &counter->hw;
val = sparc_perf_counter_update(counter, hwc, idx);
hwc = &event->hw;
val = sparc_perf_event_update(event, hwc, idx);
if (val & (1ULL << 31))
continue;
data.period = counter->hw.last_period;
if (!sparc_perf_counter_set_period(counter, hwc, idx))
data.period = event->hw.last_period;
if (!sparc_perf_event_set_period(event, hwc, idx))
continue;
if (perf_counter_overflow(counter, 1, &data, regs))
sparc_pmu_disable_counter(hwc, idx);
if (perf_event_overflow(event, 1, &data, regs))
sparc_pmu_disable_event(hwc, idx);
}
return NOTIFY_STOP;
}
static __read_mostly struct notifier_block perf_counter_nmi_notifier = {
.notifier_call = perf_counter_nmi_handler,
static __read_mostly struct notifier_block perf_event_nmi_notifier = {
.notifier_call = perf_event_nmi_handler,
};
static bool __init supported_pmu(void)
@ -536,9 +536,9 @@ static bool __init supported_pmu(void)
return false;
}
void __init init_hw_perf_counters(void)
void __init init_hw_perf_events(void)
{
pr_info("Performance counters: ");
pr_info("Performance events: ");
if (!supported_pmu()) {
pr_cont("No support for PMU type '%s'\n", sparc_pmu_type);
@ -547,10 +547,10 @@ void __init init_hw_perf_counters(void)
pr_cont("Supported PMU type is '%s'\n", sparc_pmu_type);
/* All sparc64 PMUs currently have 2 counters. But this simple
* driver only supports one active counter at a time.
/* All sparc64 PMUs currently have 2 events. But this simple
* driver only supports one active event at a time.
*/
perf_max_counters = 1;
perf_max_events = 1;
register_die_notifier(&perf_counter_nmi_notifier);
register_die_notifier(&perf_event_nmi_notifier);
}

2
arch/sparc/kernel/systbls_32.S
View File

@ -82,5 +82,5 @@ sys_call_table:
/*310*/ .long sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
/*315*/ .long sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
/*320*/ .long sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_counter_open
/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open

4
arch/sparc/kernel/systbls_64.S
View File

@ -83,7 +83,7 @@ sys_call_table32:
/*310*/ .word compat_sys_utimensat, compat_sys_signalfd, sys_timerfd_create, sys_eventfd, compat_sys_fallocate
.word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1
/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv
.word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_counter_open
.word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open
#endif /* CONFIG_COMPAT */
@ -158,4 +158,4 @@ sys_call_table:
/*310*/ .word sys_utimensat, sys_signalfd, sys_timerfd_create, sys_eventfd, sys_fallocate
.word sys_timerfd_settime, sys_timerfd_gettime, sys_signalfd4, sys_eventfd2, sys_epoll_create1
/*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, sys_preadv
.word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_counter_open
.word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open

2
arch/x86/Kconfig
View File

@ -24,7 +24,7 @@ config X86
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_IDE
select HAVE_OPROFILE
select HAVE_PERF_COUNTERS if (!M386 && !M486)
select HAVE_PERF_EVENTS if (!M386 && !M486)
select HAVE_IOREMAP_PROT
select HAVE_KPROBES
select ARCH_WANT_OPTIONAL_GPIOLIB

2
arch/x86/ia32/ia32entry.S
View File

@ -831,5 +831,5 @@ ia32_sys_call_table:
.quad compat_sys_preadv
.quad compat_sys_pwritev
.quad compat_sys_rt_tgsigqueueinfo /* 335 */
.quad sys_perf_counter_open
.quad sys_perf_event_open
ia32_syscall_end:

2
arch/x86/include/asm/entry_arch.h
View File

@ -49,7 +49,7 @@ BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
#ifdef CONFIG_PERF_COUNTERS
#ifdef CONFIG_PERF_EVENTS
BUILD_INTERRUPT(perf_pending_interrupt, LOCAL_PENDING_VECTOR)
#endif

30
arch/x86/include/asm/perf_counter.h → arch/x86/include/asm/perf_event.h
View File

@ -1,8 +1,8 @@
#ifndef _ASM_X86_PERF_COUNTER_H
#define _ASM_X86_PERF_COUNTER_H
#ifndef _ASM_X86_PERF_EVENT_H
#define _ASM_X86_PERF_EVENT_H
/*
* Performance counter hw details:
* Performance event hw details:
*/
#define X86_PMC_MAX_GENERIC 8
@ -43,7 +43,7 @@
union cpuid10_eax {
struct {
unsigned int version_id:8;
unsigned int num_counters:8;
unsigned int num_events:8;
unsigned int bit_width:8;
unsigned int mask_length:8;
} split;
@ -52,7 +52,7 @@ union cpuid10_eax {
union cpuid10_edx {
struct {
unsigned int num_counters_fixed:4;
unsigned int num_events_fixed:4;
unsigned int reserved:28;
} split;
unsigned int full;
@ -60,7 +60,7 @@ union cpuid10_edx {
/*
* Fixed-purpose performance counters:
* Fixed-purpose performance events:
*/
/*
@ -87,22 +87,22 @@ union cpuid10_edx {
/*
* We model BTS tracing as another fixed-mode PMC.
*
* We choose a value in the middle of the fixed counter range, since lower
* values are used by actual fixed counters and higher values are used
* We choose a value in the middle of the fixed event range, since lower
* values are used by actual fixed events and higher values are used
* to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr.
*/
#define X86_PMC_IDX_FIXED_BTS (X86_PMC_IDX_FIXED + 16)
#ifdef CONFIG_PERF_COUNTERS
extern void init_hw_perf_counters(void);
extern void perf_counters_lapic_init(void);
#ifdef CONFIG_PERF_EVENTS
extern void init_hw_perf_events(void);
extern void perf_events_lapic_init(void);
#define PERF_COUNTER_INDEX_OFFSET 0
#define PERF_EVENT_INDEX_OFFSET 0
#else
static inline void init_hw_perf_counters(void) { }
static inline void perf_counters_lapic_init(void) { }
static inline void init_hw_perf_events(void) { }
static inline void perf_events_lapic_init(void) { }
#endif
#endif /* _ASM_X86_PERF_COUNTER_H */
#endif /* _ASM_X86_PERF_EVENT_H */

2
arch/x86/include/asm/unistd_32.h
View File

@ -341,7 +341,7 @@
#define __NR_preadv 333
#define __NR_pwritev 334
#define __NR_rt_tgsigqueueinfo 335
#define __NR_perf_counter_open 336
#define __NR_perf_event_open 336
#ifdef __KERNEL__

4
arch/x86/include/asm/unistd_64.h
View File

@ -659,8 +659,8 @@ __SYSCALL(__NR_preadv, sys_preadv)
__SYSCALL(__NR_pwritev, sys_pwritev)
#define __NR_rt_tgsigqueueinfo 297
__SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
#define __NR_perf_counter_open 298
__SYSCALL(__NR_perf_counter_open, sys_perf_counter_open)
#define __NR_perf_event_open 298
__SYSCALL(__NR_perf_event_open, sys_perf_event_open)
#ifndef __NO_STUBS
#define __ARCH_WANT_OLD_READDIR

6
arch/x86/kernel/apic/apic.c
View File

@ -14,7 +14,7 @@
* Mikael Pettersson : PM converted to driver model.
*/
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/kernel_stat.h>
#include <linux/mc146818rtc.h>
#include <linux/acpi_pmtmr.h>
@ -35,7 +35,7 @@
#include <linux/smp.h>
#include <linux/mm.h>
#include <asm/perf_counter.h>
#include <asm/perf_event.h>
#include <asm/x86_init.h>
#include <asm/pgalloc.h>
#include <asm/atomic.h>
@ -1189,7 +1189,7 @@ void __cpuinit setup_local_APIC(void)
apic_write(APIC_ESR, 0);
}
#endif
perf_counters_lapic_init();
perf_events_lapic_init();
preempt_disable();

2
arch/x86/kernel/cpu/Makefile
View File

@ -27,7 +27,7 @@ obj-$(CONFIG_CPU_SUP_CENTAUR) += centaur.o
obj-$(CONFIG_CPU_SUP_TRANSMETA_32) += transmeta.o
obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o
obj-$(CONFIG_PERF_COUNTERS) += perf_counter.o
obj-$(CONFIG_PERF_EVENTS) += perf_event.o
obj-$(CONFIG_X86_MCE) += mcheck/
obj-$(CONFIG_MTRR) += mtrr/

4
arch/x86/kernel/cpu/common.c
View File

@ -13,7 +13,7 @@
#include <linux/io.h>
#include <asm/stackprotector.h>
#include <asm/perf_counter.h>
#include <asm/perf_event.h>
#include <asm/mmu_context.h>
#include <asm/hypervisor.h>
#include <asm/processor.h>
@ -869,7 +869,7 @@ void __init identify_boot_cpu(void)
#else
vgetcpu_set_mode();
#endif
init_hw_perf_counters();
init_hw_perf_events();
}
void __cpuinit identify_secondary_cpu(struct cpuinfo_x86 *c)

552
arch/x86/kernel/cpu/perf_counter.c → arch/x86/kernel/cpu/perf_event.c
View File

File diff suppressed because it is too large Load Diff

2
arch/x86/kernel/cpu/perfctr-watchdog.c
View File

@ -20,7 +20,7 @@
#include <linux/kprobes.h>
#include <asm/apic.h>
#include <asm/perf_counter.h>
#include <asm/perf_event.h>
struct nmi_watchdog_ctlblk {
unsigned int cccr_msr;

2
arch/x86/kernel/entry_64.S
View File

@ -1021,7 +1021,7 @@ apicinterrupt ERROR_APIC_VECTOR \
apicinterrupt SPURIOUS_APIC_VECTOR \
spurious_interrupt smp_spurious_interrupt
#ifdef CONFIG_PERF_COUNTERS
#ifdef CONFIG_PERF_EVENTS
apicinterrupt LOCAL_PENDING_VECTOR \
perf_pending_interrupt smp_perf_pending_interrupt
#endif

2
arch/x86/kernel/irqinit.c
View File

@ -208,7 +208,7 @@ static void __init apic_intr_init(void)
alloc_intr_gate(ERROR_APIC_VECTOR, error_interrupt);
/* Performance monitoring interrupts: */
# ifdef CONFIG_PERF_COUNTERS
# ifdef CONFIG_PERF_EVENTS
alloc_intr_gate(LOCAL_PENDING_VECTOR, perf_pending_interrupt);
# endif

2
arch/x86/kernel/syscall_table_32.S
View File

@ -335,4 +335,4 @@ ENTRY(sys_call_table)
.long sys_preadv
.long sys_pwritev
.long sys_rt_tgsigqueueinfo /* 335 */
.long sys_perf_counter_open
.long sys_perf_event_open

8
arch/x86/mm/fault.c
View File

@ -10,7 +10,7 @@
#include <linux/bootmem.h> /* max_low_pfn */
#include <linux/kprobes.h> /* __kprobes, ... */
#include <linux/mmiotrace.h> /* kmmio_handler, ... */
#include <linux/perf_counter.h> /* perf_swcounter_event */
#include <linux/perf_event.h> /* perf_sw_event */
#include <asm/traps.h> /* dotraplinkage, ... */
#include <asm/pgalloc.h> /* pgd_*(), ... */
@ -1017,7 +1017,7 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
if (unlikely(error_code & PF_RSVD))
pgtable_bad(regs, error_code, address);
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
/*
* If we're in an interrupt, have no user context or are running
@ -1114,11 +1114,11 @@ good_area:
if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
regs, address);
} else {
tsk->min_flt++;
perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
regs, address);
}

4
arch/x86/oprofile/op_model_ppro.c
View File

@ -234,11 +234,11 @@ static void arch_perfmon_setup_counters(void)
if (eax.split.version_id == 0 && current_cpu_data.x86 == 6 &&
current_cpu_data.x86_model == 15) {
eax.split.version_id = 2;
eax.split.num_counters = 2;
eax.split.num_events = 2;
eax.split.bit_width = 40;
}
num_counters = eax.split.num_counters;
num_counters = eax.split.num_events;
op_arch_perfmon_spec.num_counters = num_counters;
op_arch_perfmon_spec.num_controls = num_counters;

2
arch/x86/oprofile/op_x86_model.h
View File

@ -13,7 +13,7 @@
#define OP_X86_MODEL_H
#include <asm/types.h>
#include <asm/perf_counter.h>
#include <asm/perf_event.h>
struct op_msr {
unsigned long addr;

4
drivers/char/sysrq.c
View File

@ -26,7 +26,7 @@
#include <linux/proc_fs.h>
#include <linux/nmi.h>
#include <linux/quotaops.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/suspend.h>
@ -252,7 +252,7 @@ static void sysrq_handle_showregs(int key, struct tty_struct *tty)
struct pt_regs *regs = get_irq_regs();
if (regs)
show_regs(regs);
perf_counter_print_debug();
perf_event_print_debug();
}
static struct sysrq_key_op sysrq_showregs_op = {
.handler = sysrq_handle_showregs,

6
fs/exec.c
View File

@ -33,7 +33,7 @@
#include <linux/string.h>
#include <linux/init.h>
#include <linux/pagemap.h>
#include <linux/perf_counter.h>
#include <linux/perf_event.h>
#include <linux/highmem.h>
#include <linux/spinlock.h>
#include <linux/key.h>
@ -923,7 +923,7 @@ void set_task_comm(struct task_struct *tsk, char *buf)
task_lock(tsk);
strlcpy(tsk->comm, buf, sizeof(tsk->comm));
task_unlock(tsk);
perf_counter_comm(tsk);
perf_event_comm(tsk);
}
int flush_old_exec(struct linux_binprm * bprm)
@ -997,7 +997,7 @@ int flush_old_exec(struct linux_binprm * bprm)
* security domain:
*/
if (!get_dumpable(current->mm))
perf_counter_exit_task(current);
perf_event_exit_task(current);
/* An exec changes our domain. We are no longer part of the thread
group */

4
include/asm-generic/unistd.h
View File

@ -620,8 +620,8 @@ __SYSCALL(__NR_move_pages, sys_move_pages)
#define __NR_rt_tgsigqueueinfo 240
__SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
#define __NR_perf_counter_open 241
__SYSCALL(__NR_perf_counter_open, sys_perf_counter_open)
#define __NR_perf_event_open 241
__SYSCALL(__NR_perf_event_open, sys_perf_event_open)
#undef __NR_syscalls
#define __NR_syscalls 242

14
include/linux/init_task.h
View File

@ -106,13 +106,13 @@ extern struct group_info init_groups;
extern struct cred init_cred;
#ifdef CONFIG_PERF_COUNTERS
# define INIT_PERF_COUNTERS(tsk) \
.perf_counter_mutex = \
__MUTEX_INITIALIZER(tsk.perf_counter_mutex), \
.perf_counter_list = LIST_HEAD_INIT(tsk.perf_counter_list),
#ifdef CONFIG_PERF_EVENTS
# define INIT_PERF_EVENTS(tsk) \
.perf_event_mutex = \
__MUTEX_INITIALIZER(tsk.perf_event_mutex), \
.perf_event_list = LIST_HEAD_INIT(tsk.perf_event_list),
#else
# define INIT_PERF_COUNTERS(tsk)
# define INIT_PERF_EVENTS(tsk)
#endif
/*
@ -178,7 +178,7 @@ extern struct cred init_cred;
}, \
.dirties = INIT_PROP_LOCAL_SINGLE(dirties), \
INIT_IDS \
INIT_PERF_COUNTERS(tsk) \
INIT_PERF_EVENTS(tsk) \
INIT_TRACE_IRQFLAGS \
INIT_LOCKDEP \
INIT_FTRACE_GRAPH \

435
include/linux/perf_counter.h
View File

@ -1,5 +1,9 @@
/*
* Performance counters:
* NOTE: this file will be removed in a future kernel release, it is
* provided as a courtesy copy of user-space code that relies on the
* old (pre-rename) symbols and constants.
*
* Performance events:
*
* Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
* Copyright (C) 2008-2009, Red Hat, Inc., Ingo Molnar
@ -425,434 +429,13 @@ enum perf_callchain_context {
#define PERF_FLAG_FD_NO_GROUP (1U << 0)
#define PERF_FLAG_FD_OUTPUT (1U << 1)
#ifdef __KERNEL__
/*
* Kernel-internal data types and definitions:
* In case some app still references the old symbols:
*/
#ifdef CONFIG_PERF_COUNTERS
# include <asm/perf_counter.h>
#endif
#define __NR_perf_counter_open __NR_perf_event_open
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/spinlock.h>
#include <linux/hrtimer.h>
#include <linux/fs.h>
#include <linux/pid_namespace.h>
#include <asm/atomic.h>
#define PR_TASK_PERF_COUNTERS_DISABLE PR_TASK_PERF_EVENTS_DISABLE
#define PR_TASK_PERF_COUNTERS_ENABLE PR_TASK_PERF_EVENTS_ENABLE
#define PERF_MAX_STACK_DEPTH 255
struct perf_callchain_entry {
__u64 nr;
__u64 ip[PERF_MAX_STACK_DEPTH];
};
struct perf_raw_record {
u32 size;
void *data;
};
struct task_struct;
/**
* struct hw_perf_counter - performance counter hardware details:
*/
struct hw_perf_counter {
#ifdef CONFIG_PERF_COUNTERS
union {
struct { /* hardware */
u64 config;
unsigned long config_base;
unsigned long counter_base;
int idx;
};
union { /* software */
atomic64_t count;
struct hrtimer hrtimer;
};
};
atomic64_t prev_count;
u64 sample_period;
u64 last_period;
atomic64_t period_left;
u64 interrupts;
u64 freq_count;
u64 freq_interrupts;
u64 freq_stamp;
#endif
};
struct perf_counter;
/**
* struct pmu - generic performance monitoring unit
*/
struct pmu {
int (*enable) (struct perf_counter *counter);
void (*disable) (struct perf_counter *counter);
void (*read) (struct perf_counter *counter);
void (*unthrottle) (struct perf_counter *counter);
};
/**
* enum perf_counter_active_state - the states of a counter
*/
enum perf_counter_active_state {
PERF_COUNTER_STATE_ERROR = -2,
PERF_COUNTER_STATE_OFF = -1,
PERF_COUNTER_STATE_INACTIVE = 0,
PERF_COUNTER_STATE_ACTIVE = 1,
};
struct file;
struct perf_mmap_data {
struct rcu_head rcu_head;
int nr_pages; /* nr of data pages */
int writable; /* are we writable */
int nr_locked; /* nr pages mlocked */
atomic_t poll; /* POLL_ for wakeups */
atomic_t events; /* event limit */
atomic_long_t head; /* write position */
atomic_long_t done_head; /* completed head */
atomic_t lock; /* concurrent writes */
atomic_t wakeup; /* needs a wakeup */
atomic_t lost; /* nr records lost */
long watermark; /* wakeup watermark */
struct perf_counter_mmap_page *user_page;
void *data_pages[0];
};
struct perf_pending_entry {
struct perf_pending_entry *next;
void (*func)(struct perf_pending_entry *);
};
/**
* struct perf_counter - performance counter kernel representation:
*/
struct perf_counter {
#ifdef CONFIG_PERF_COUNTERS
struct list_head list_entry;
struct list_head event_entry;
struct list_head sibling_list;
int nr_siblings;
struct perf_counter *group_leader;
struct perf_counter *output;
const struct pmu *pmu;
enum perf_counter_active_state state;
atomic64_t count;
/*
* These are the total time in nanoseconds that the counter
* has been enabled (i.e. eligible to run, and the task has
* been scheduled in, if this is a per-task counter)
* and running (scheduled onto the CPU), respectively.
*
* They are computed from tstamp_enabled, tstamp_running and
* tstamp_stopped when the counter is in INACTIVE or ACTIVE state.
*/
u64 total_time_enabled;
u64 total_time_running;
/*
* These are timestamps used for computing total_time_enabled
* and total_time_running when the counter is in INACTIVE or
* ACTIVE state, measured in nanoseconds from an arbitrary point
* in time.
* tstamp_enabled: the notional time when the counter was enabled
* tstamp_running: the notional time when the counter was scheduled on
* tstamp_stopped: in INACTIVE state, the notional time when the
* counter was scheduled off.
*/
u64 tstamp_enabled;
u64 tstamp_running;
u64 tstamp_stopped;
struct perf_counter_attr attr;
struct hw_perf_counter hw;
struct perf_counter_context *ctx;
struct file *filp;
/*
* These accumulate total time (in nanoseconds) that children
* counters have been enabled and running, respectively.
*/
atomic64_t child_total_time_enabled;
atomic64_t child_total_time_running;
/*
* Protect attach/detach and child_list:
*/
struct mutex child_mutex;
struct list_head child_list;
struct perf_counter *parent;
int oncpu;
int cpu;
struct list_head owner_entry;
struct task_struct *owner;
/* mmap bits */
struct mutex mmap_mutex;
atomic_t mmap_count;
struct perf_mmap_data *data;
/* poll related */
wait_queue_head_t waitq;
struct fasync_struct *fasync;
/* delayed work for NMIs and such */
int pending_wakeup;
int pending_kill;
int pending_disable;
struct perf_pending_entry pending;
atomic_t event_limit;
void (*destroy)(struct perf_counter *);
struct rcu_head rcu_head;
struct pid_namespace *ns;
u64 id;
#endif
};
/**
* struct perf_counter_context - counter context structure
*
* Used as a container for task counters and CPU counters as well:
*/
struct perf_counter_context {
/*
* Protect the states of the counters in the list,
* nr_active, and the list:
*/
spinlock_t lock;
/*
* Protect the list of counters. Locking either mutex or lock
* is sufficient to ensure the list doesn't change; to change
* the list you need to lock both the mutex and the spinlock.
*/
struct mutex mutex;
struct list_head counter_list;
struct list_head event_list;
int nr_counters;
int nr_active;
int is_active;
int nr_stat;
atomic_t refcount;
struct task_struct *task;
/*
* Context clock, runs when context enabled.
*/
u64 time;
u64 timestamp;
/*
* These fields let us detect when two contexts have both
* been cloned (inherited) from a common ancestor.
*/
struct perf_counter_context *parent_ctx;
u64 parent_gen;
u64 generation;
int pin_count;
struct rcu_head rcu_head;
};
/**
* struct perf_counter_cpu_context - per cpu counter context structure
*/
struct perf_cpu_context {
struct perf_counter_context ctx;
struct perf_counter_context *task_ctx;
int active_oncpu;
int max_pertask;
int exclusive;
/*
* Recursion avoidance:
*
* task, softirq, irq, nmi context
*/
int recursion[4];
};
struct perf_output_handle {
struct perf_counter *counter;
struct perf_mmap_data *data;
unsigned long head;
unsigned long offset;
int nmi;
int sample;
int locked;
unsigned long flags;
};
#ifdef CONFIG_PERF_COUNTERS
/*
* Set by architecture code:
*/
extern int perf_max_counters;
extern const struct pmu *hw_perf_counter_init(struct perf_counter *counter);
extern void perf_counter_task_sched_in(struct task_struct *task, int cpu);
extern void perf_counter_task_sched_out(struct task_struct *task,
struct task_struct *next, int cpu);
extern void perf_counter_task_tick(struct task_struct *task, int cpu);
extern int perf_counter_init_task(struct task_struct *child);
extern void perf_counter_exit_task(struct task_struct *child);
extern void perf_counter_free_task(struct task_struct *task);
extern void set_perf_counter_pending(void);
extern void perf_counter_do_pending(void);
extern void perf_counter_print_debug(void);
extern void __perf_disable(void);
extern bool __perf_enable(void);
extern void perf_disable(void);
extern void perf_enable(void);
extern int perf_counter_task_disable(void);
extern int perf_counter_task_enable(void);
extern int hw_perf_group_sched_in(struct perf_counter *group_leader,
struct perf_cpu_context *cpuctx,
struct perf_counter_context *ctx, int cpu);
extern void perf_counter_update_userpage(struct perf_counter *counter);
struct perf_sample_data {
u64 type;
u64 ip;
struct {
u32 pid;
u32 tid;
} tid_entry;
u64 time;
u64 addr;
u64 id;
u64 stream_id;
struct {
u32 cpu;
u32 reserved;
} cpu_entry;
u64 period;
struct perf_callchain_entry *callchain;
struct perf_raw_record *raw;
};
extern void perf_output_sample(struct perf_output_handle *handle,
struct perf_event_header *header,
struct perf_sample_data *data,
struct perf_counter *counter);
extern void perf_prepare_sample(struct perf_event_header *header,
struct perf_sample_data *data,
struct perf_counter *counter,
struct pt_regs *regs);
extern int perf_counter_overflow(struct perf_counter *counter, int nmi,
struct perf_sample_data *data,
struct pt_regs *regs);
/*
* Return 1 for a software counter, 0 for a hardware counter
*/
static inline int is_software_counter(struct perf_counter *counter)
{
return (counter->attr.type != PERF_TYPE_RAW) &&
(counter->attr.type != PERF_TYPE_HARDWARE) &&
(counter->attr.type != PERF_TYPE_HW_CACHE);
}
extern atomic_t perf_swcounter_enabled[PERF_COUNT_SW_MAX];
extern void __perf_swcounter_event(u32, u64, int, struct pt_regs *, u64);
static inline void
perf_swcounter_event(u32 event, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
{
if (atomic_read(&perf_swcounter_enabled[event]))
__perf_swcounter_event(event, nr, nmi, regs, addr);
}
extern void __perf_counter_mmap(struct vm_area_struct *vma);
static inline void perf_counter_mmap(struct vm_area_struct *vma)
{
if (vma->vm_flags & VM_EXEC)
__perf_counter_mmap(vma);
}
extern void perf_counter_comm(struct task_struct *tsk);
extern void perf_counter_fork(struct task_struct *tsk);
extern struct perf_callchain_entry *perf_callchain(struct pt_regs *regs);
extern int sysctl_perf_counter_paranoid;
extern int sysctl_perf_counter_mlock;
extern int sysctl_perf_counter_sample_rate;
extern void perf_counter_init(void);
extern void perf_tpcounter_event(int event_id, u64 addr, u64 count,
void *record, int entry_size);
#ifndef perf_misc_flags
#define perf_misc_flags(regs) (user_mode(regs) ? PERF_EVENT_MISC_USER : \
PERF_EVENT_MISC_KERNEL)
#define perf_instruction_pointer(regs) instruction_pointer(regs)
#endif
extern int perf_output_begin(struct perf_output_handle *handle,
struct perf_counter *counter, unsigned int size,
int nmi, int sample);
extern void perf_output_end(struct perf_output_handle *handle);
extern void perf_output_copy(struct perf_output_handle *handle,
const void *buf, unsigned int len);
#else
static inline void
perf_counter_task_sched_in(struct task_struct *task, int cpu) { }
static inline void
perf_counter_task_sched_out(struct task_struct *task,
struct task_struct *next, int cpu) { }
static inline void
perf_counter_task_tick(struct task_struct *task, int cpu) { }
static inline int perf_counter_init_task(struct task_struct *child) { return 0; }
static inline void perf_counter_exit_task(struct task_struct *child) { }
static inline void perf_counter_free_task(struct task_struct *task) { }
static inline void perf_counter_do_pending(void) { }
static inline void perf_counter_print_debug(void) { }
static inline void perf_disable(void) { }
static inline void perf_enable(void) { }
static inline int perf_counter_task_disable(void) { return -EINVAL; }
static inline int perf_counter_task_enable(void) { return -EINVAL; }
static inline void
perf_swcounter_event(u32 event, u64 nr, int nmi,
struct pt_regs *regs, u64 addr) { }
static inline void perf_counter_mmap(struct vm_area_struct *vma) { }
static inline void perf_counter_comm(struct task_struct *tsk) { }
static inline void perf_counter_fork(struct task_struct *tsk) { }
static inline void perf_counter_init(void) { }
#endif
#define perf_output_put(handle, x) \
perf_output_copy((handle), &(x), sizeof(x))
#endif /* __KERNEL__ */
#endif /* _LINUX_PERF_COUNTER_H */

858
include/linux/perf_event.h Normal file
View File

@ -0,0 +1,858 @@
/*
* Performance events:
*
* Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
* Copyright (C) 2008-2009, Red Hat, Inc., Ingo Molnar
* Copyright (C) 2008-2009, Red Hat, Inc., Peter Zijlstra
*
* Data type definitions, declarations, prototypes.
*
* Started by: Thomas Gleixner and Ingo Molnar
*
* For licencing details see kernel-base/COPYING
*/
#ifndef _LINUX_PERF_EVENT_H
#define _LINUX_PERF_EVENT_H
#include <linux/types.h>
#include <linux/ioctl.h>
#include <asm/byteorder.h>
/*
* User-space ABI bits:
*/
/*
* attr.type
*/
enum perf_type_id {
PERF_TYPE_HARDWARE = 0,
PERF_TYPE_SOFTWARE = 1,
PERF_TYPE_TRACEPOINT = 2,
PERF_TYPE_HW_CACHE = 3,
PERF_TYPE_RAW = 4,
PERF_TYPE_MAX, /* non-ABI */
};
/*
* Generalized performance event event_id types, used by the
* attr.event_id parameter of the sys_perf_event_open()
* syscall:
*/
enum perf_hw_id {
/*
* Common hardware events, generalized by the kernel:
*/
PERF_COUNT_HW_CPU_CYCLES = 0,
PERF_COUNT_HW_INSTRUCTIONS = 1,
PERF_COUNT_HW_CACHE_REFERENCES = 2,
PERF_COUNT_HW_CACHE_MISSES = 3,
PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4,
PERF_COUNT_HW_BRANCH_MISSES = 5,
PERF_COUNT_HW_BUS_CYCLES = 6,
PERF_COUNT_HW_MAX, /* non-ABI */
};
/*
* Generalized hardware cache events:
*
* { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
* { read, write, prefetch } x
* { accesses, misses }
*/
enum perf_hw_cache_id {
PERF_COUNT_HW_CACHE_L1D = 0,
PERF_COUNT_HW_CACHE_L1I = 1,
PERF_COUNT_HW_CACHE_LL = 2,
PERF_COUNT_HW_CACHE_DTLB = 3,
PERF_COUNT_HW_CACHE_ITLB = 4,
PERF_COUNT_HW_CACHE_BPU = 5,
PERF_COUNT_HW_CACHE_MAX, /* non-ABI */
};
enum perf_hw_cache_op_id {
PERF_COUNT_HW_CACHE_OP_READ = 0,
PERF_COUNT_HW_CACHE_OP_WRITE = 1,
PERF_COUNT_HW_CACHE_OP_PREFETCH = 2,
PERF_COUNT_HW_CACHE_OP_MAX, /* non-ABI */
};
enum perf_hw_cache_op_result_id {
PERF_COUNT_HW_CACHE_RESULT_ACCESS = 0,
PERF_COUNT_HW_CACHE_RESULT_MISS = 1,
PERF_COUNT_HW_CACHE_RESULT_MAX, /* non-ABI */
};
/*
* Special "software" events provided by the kernel, even if the hardware
* does not support performance events. These events measure various
* physical and sw events of the kernel (and allow the profiling of them as
* well):
*/
enum perf_sw_ids {
PERF_COUNT_SW_CPU_CLOCK = 0,
PERF_COUNT_SW_TASK_CLOCK = 1,
PERF_COUNT_SW_PAGE_FAULTS = 2,
PERF_COUNT_SW_CONTEXT_SWITCHES = 3,
PERF_COUNT_SW_CPU_MIGRATIONS = 4,
PERF_COUNT_SW_PAGE_FAULTS_MIN = 5,
PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6,
PERF_COUNT_SW_MAX, /* non-ABI */
};
/*
* Bits that can be set in attr.sample_type to request information
* in the overflow packets.
*/
enum perf_event_sample_format {
PERF_SAMPLE_IP = 1U << 0,
PERF_SAMPLE_TID = 1U << 1,
PERF_SAMPLE_TIME = 1U << 2,
PERF_SAMPLE_ADDR = 1U << 3,
PERF_SAMPLE_READ = 1U << 4,
PERF_SAMPLE_CALLCHAIN = 1U << 5,
PERF_SAMPLE_ID = 1U << 6,
PERF_SAMPLE_CPU = 1U << 7,
PERF_SAMPLE_PERIOD = 1U << 8,
PERF_SAMPLE_STREAM_ID = 1U << 9,
PERF_SAMPLE_RAW = 1U << 10,
PERF_SAMPLE_MAX = 1U << 11, /* non-ABI */
};
/*
* The format of the data returned by read() on a perf event fd,
* as specified by attr.read_format:
*
* struct read_format {
* { u64 value;
* { u64 time_enabled; } && PERF_FORMAT_ENABLED
* { u64 time_running; } && PERF_FORMAT_RUNNING
* { u64 id; } && PERF_FORMAT_ID
* } && !PERF_FORMAT_GROUP
*
* { u64 nr;
* { u64 time_enabled; } && PERF_FORMAT_ENABLED
* { u64 time_running; } && PERF_FORMAT_RUNNING
* { u64 value;
* { u64 id; } && PERF_FORMAT_ID
* } cntr[nr];
* } && PERF_FORMAT_GROUP
* };
*/
enum perf_event_read_format {
PERF_FORMAT_TOTAL_TIME_ENABLED = 1U << 0,
PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1,
PERF_FORMAT_ID = 1U << 2,
PERF_FORMAT_GROUP = 1U << 3,
PERF_FORMAT_MAX = 1U << 4, /* non-ABI */
};
#define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */
/*
* Hardware event_id to monitor via a performance monitoring event:
*/
struct perf_event_attr {
/*
* Major type: hardware/software/tracepoint/etc.
*/
__u32 type;
/*
* Size of the attr structure, for fwd/bwd compat.
*/
__u32 size;
/*
* Type specific configuration information.
*/
__u64 config;
union {
__u64 sample_period;
__u64 sample_freq;
};
__u64 sample_type;
__u64 read_format;
__u64 disabled : 1, /* off by default */
inherit : 1, /* children inherit it */
pinned : 1, /* must always be on PMU */
exclusive : 1, /* only group on PMU */
exclude_user : 1, /* don't count user */
exclude_kernel : 1, /* ditto kernel */
exclude_hv : 1, /* ditto hypervisor */
exclude_idle : 1, /* don't count when idle */
mmap : 1, /* include mmap data */
comm : 1, /* include comm data */
freq : 1, /* use freq, not period */
inherit_stat : 1, /* per task counts */
enable_on_exec : 1, /* next exec enables */
task : 1, /* trace fork/exit */
watermark : 1, /* wakeup_watermark */
__reserved_1 : 49;
union {
__u32 wakeup_events; /* wakeup every n events */
__u32 wakeup_watermark; /* bytes before wakeup */
};
__u32 __reserved_2;
__u64 __reserved_3;
};
/*
* Ioctls that can be done on a perf event fd:
*/
#define PERF_EVENT_IOC_ENABLE _IO ('$', 0)
#define PERF_EVENT_IOC_DISABLE _IO ('$', 1)
#define PERF_EVENT_IOC_REFRESH _IO ('$', 2)
#define PERF_EVENT_IOC_RESET _IO ('$', 3)
#define PERF_EVENT_IOC_PERIOD _IOW('$', 4, u64)
#define PERF_EVENT_IOC_SET_OUTPUT _IO ('$', 5)
enum perf_event_ioc_flags {
PERF_IOC_FLAG_GROUP = 1U << 0,
};
/*
* Structure of the page that can be mapped via mmap
*/
struct perf_event_mmap_page {
__u32 version; /* version number of this structure */
__u32 compat_version; /* lowest version this is compat with */
/*
* Bits needed to read the hw events in user-space.
*
* u32 seq;
* s64 count;
*
* do {
* seq = pc->lock;
*
* barrier()
* if (pc->index) {
* count = pmc_read(pc->index - 1);
* count += pc->offset;
* } else
* goto regular_read;
*
* barrier();
* } while (pc->lock != seq);
*
* NOTE: for obvious reason this only works on self-monitoring
* processes.
*/
__u32 lock; /* seqlock for synchronization */
__u32 index; /* hardware event identifier */
__s64 offset; /* add to hardware event value */
__u64 time_enabled; /* time event active */
__u64 time_running; /* time event on cpu */
/*
* Hole for extension of the self monitor capabilities
*/
__u64 __reserved[123]; /* align to 1k */
/*
* Control data for the mmap() data buffer.
*
* User-space reading the @data_head value should issue an rmb(), on
* SMP capable platforms, after reading this value -- see
* perf_event_wakeup().
*
* When the mapping is PROT_WRITE the @data_tail value should be
* written by userspace to reflect the last read data. In this case
* the kernel will not over-write unread data.
*/
__u64 data_head; /* head in the data section */
__u64 data_tail; /* user-space written tail */
};
#define PERF_RECORD_MISC_CPUMODE_MASK (3 << 0)
#define PERF_RECORD_MISC_CPUMODE_UNKNOWN (0 << 0)
#define PERF_RECORD_MISC_KERNEL (1 << 0)
#define PERF_RECORD_MISC_USER (2 << 0)
#define PERF_RECORD_MISC_HYPERVISOR (3 << 0)
struct perf_event_header {
__u32 type;
__u16 misc;
__u16 size;
};
enum perf_event_type {
/*
* The MMAP events record the PROT_EXEC mappings so that we can
* correlate userspace IPs to code. They have the following structure:
*
* struct {
* struct perf_event_header header;
*
* u32 pid, tid;
* u64 addr;
* u64 len;
* u64 pgoff;
* char filename[];
* };
*/
PERF_RECORD_MMAP = 1,
/*
* struct {
* struct perf_event_header header;
* u64 id;
* u64 lost;
* };
*/
PERF_RECORD_LOST = 2,
/*
* struct {
* struct perf_event_header header;
*
* u32 pid, tid;
* char comm[];
* };
*/
PERF_RECORD_COMM = 3,
/*
* struct {
* struct perf_event_header header;
* u32 pid, ppid;
* u32 tid, ptid;
* u64 time;
* };
*/
PERF_RECORD_EXIT = 4,
/*
* struct {
* struct perf_event_header header;
* u64 time;
* u64 id;
* u64 stream_id;
* };
*/
PERF_RECORD_THROTTLE = 5,
PERF_RECORD_UNTHROTTLE = 6,
/*
* struct {
* struct perf_event_header header;
* u32 pid, ppid;
* u32 tid, ptid;
* { u64 time; } && PERF_SAMPLE_TIME
* };
*/
PERF_RECORD_FORK = 7,
/*
* struct {
* struct perf_event_header header;
* u32 pid, tid;
*
* struct read_format values;
* };
*/
PERF_RECORD_READ = 8,
/*
* struct {
* struct perf_event_header header;
*
* { u64 ip; } && PERF_SAMPLE_IP
* { u32 pid, tid; } && PERF_SAMPLE_TID
* { u64 time; } && PERF_SAMPLE_TIME
* { u64 addr; } && PERF_SAMPLE_ADDR
* { u64 id; } && PERF_SAMPLE_ID
* { u64 stream_id;} && PERF_SAMPLE_STREAM_ID
* { u32 cpu, res; } && PERF_SAMPLE_CPU
* { u64 period; } && PERF_SAMPLE_PERIOD
*
* { struct read_format values; } && PERF_SAMPLE_READ
*
* { u64 nr,
* u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN
*
* #
* # The RAW record below is opaque data wrt the ABI
* #
* # That is, the ABI doesn't make any promises wrt to
* # the stability of its content, it may vary depending
* # on event, hardware, kernel version and phase of
* # the moon.
* #
* # In other words, PERF_SAMPLE_RAW contents are not an ABI.
* #
*
* { u32 size;
* char data[size];}&& PERF_SAMPLE_RAW
* };
*/
PERF_RECORD_SAMPLE = 9,
PERF_RECORD_MAX, /* non-ABI */
};
enum perf_callchain_context {
PERF_CONTEXT_HV = (__u64)-32,
PERF_CONTEXT_KERNEL = (__u64)-128,
PERF_CONTEXT_USER = (__u64)-512,
PERF_CONTEXT_GUEST = (__u64)-2048,
PERF_CONTEXT_GUEST_KERNEL = (__u64)-2176,
PERF_CONTEXT_GUEST_USER = (__u64)-2560,
PERF_CONTEXT_MAX = (__u64)-4095,
};
#define PERF_FLAG_FD_NO_GROUP (1U << 0)
#define PERF_FLAG_FD_OUTPUT (1U << 1)
#ifdef __KERNEL__
/*
* Kernel-internal data types and definitions:
*/
#ifdef CONFIG_PERF_EVENTS
# include <asm/perf_event.h>
#endif
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/spinlock.h>
#include <linux/hrtimer.h>
#include <linux/fs.h>
#include <linux/pid_namespace.h>
#include <asm/atomic.h>
#define PERF_MAX_STACK_DEPTH 255
struct perf_callchain_entry {
__u64 nr;
__u64 ip[PERF_MAX_STACK_DEPTH];
};
struct perf_raw_record {
u32 size;
void *data;
};
struct task_struct;
/**
* struct hw_perf_event - performance event hardware details:
*/
struct hw_perf_event {
#ifdef CONFIG_PERF_EVENTS
union {
struct { /* hardware */
u64 config;
unsigned long config_base;
unsigned long event_base;
int idx;
};
union { /* software */
atomic64_t count;
struct hrtimer hrtimer;
};
};
atomic64_t prev_count;
u64 sample_period;
u64 last_period;
atomic64_t period_left;
u64 interrupts;
u64 freq_count;
u64 freq_interrupts;
u64 freq_stamp;
#endif
};
struct perf_event;
/**
* struct pmu - generic performance monitoring unit
*/
struct pmu {
int (*enable) (struct perf_event *event);
void (*disable) (struct perf_event *event);
void (*read) (struct perf_event *event);
void (*unthrottle) (struct perf_event *event);
};
/**
* enum perf_event_active_state - the states of a event
*/
enum perf_event_active_state {
PERF_EVENT_STATE_ERROR = -2,
PERF_EVENT_STATE_OFF = -1,
PERF_EVENT_STATE_INACTIVE = 0,
PERF_EVENT_STATE_ACTIVE = 1,
};
struct file;
struct perf_mmap_data {
struct rcu_head rcu_head;
int nr_pages; /* nr of data pages */
int writable; /* are we writable */
int nr_locked; /* nr pages mlocked */
atomic_t poll; /* POLL_ for wakeups */
atomic_t events; /* event_id limit */
atomic_long_t head; /* write position */
atomic_long_t done_head; /* completed head */
atomic_t lock; /* concurrent writes */
atomic_t wakeup; /* needs a wakeup */
atomic_t lost; /* nr records lost */
long watermark; /* wakeup watermark */
struct perf_event_mmap_page *user_page;
void *data_pages[0];
};
struct perf_pending_entry {
struct perf_pending_entry *next;
void (*func)(struct perf_pending_entry *);
};
/**
* struct perf_event - performance event kernel representation:
*/
struct perf_event {
#ifdef CONFIG_PERF_EVENTS
struct list_head group_entry;
struct list_head event_entry;
struct list_head sibling_list;
int nr_siblings;
struct perf_event *group_leader;
struct perf_event *output;
const struct pmu *pmu;
enum perf_event_active_state state;
atomic64_t count;
/*
* These are the total time in nanoseconds that the event
* has been enabled (i.e. eligible to run, and the task has
* been scheduled in, if this is a per-task event)
* and running (scheduled onto the CPU), respectively.
*
* They are computed from tstamp_enabled, tstamp_running and
* tstamp_stopped when the event is in INACTIVE or ACTIVE state.
*/
u64 total_time_enabled;
u64 total_time_running;
/*
* These are timestamps used for computing total_time_enabled
* and total_time_running when the event is in INACTIVE or
* ACTIVE state, measured in nanoseconds from an arbitrary point
* in time.
* tstamp_enabled: the notional time when the event was enabled
* tstamp_running: the notional time when the event was scheduled on
* tstamp_stopped: in INACTIVE state, the notional time when the
* event was scheduled off.
*/
u64 tstamp_enabled;
u64 tstamp_running;
u64 tstamp_stopped;
struct perf_event_attr attr;
struct hw_perf_event hw;
struct perf_event_context *ctx;
struct file *filp;
/*
* These accumulate total time (in nanoseconds) that children
* events have been enabled and running, respectively.
*/
atomic64_t child_total_time_enabled;
atomic64_t child_total_time_running;
/*
* Protect attach/detach and child_list:
*/
struct mutex child_mutex;
struct list_head child_list;
struct perf_event *parent;
int oncpu;
int cpu;
struct list_head owner_entry;
struct task_struct *owner;
/* mmap bits */
struct mutex mmap_mutex;
atomic_t mmap_count;
struct perf_mmap_data *data;
/* poll related */
wait_queue_head_t waitq;
struct fasync_struct *fasync;
/* delayed work for NMIs and such */
int pending_wakeup;
int pending_kill;
int pending_disable;
struct perf_pending_entry pending;
atomic_t event_limit;
void (*destroy)(struct perf_event *);
struct rcu_head rcu_head;
struct pid_namespace *ns;
u64 id;
#endif
};
/**
* struct perf_event_context - event context structure
*
* Used as a container for task events and CPU events as well:
*/
struct perf_event_context {
/*
* Protect the states of the events in the list,
* nr_active, and the list:
*/
spinlock_t lock;
/*
* Protect the list of events. Locking either mutex or lock
* is sufficient to ensure the list doesn't change; to change
* the list you need to lock both the mutex and the spinlock.
*/
struct mutex mutex;
struct list_head group_list;
struct list_head event_list;
int nr_events;
int nr_active;
int is_active;
int nr_stat;
atomic_t refcount;
struct task_struct *task;
/*
* Context clock, runs when context enabled.
*/
u64 time;
u64 timestamp;
/*
* These fields let us detect when two contexts have both
* been cloned (inherited) from a common ancestor.
*/
struct perf_event_context *parent_ctx;
u64 parent_gen;
u64 generation;
int pin_count;
struct rcu_head rcu_head;
};
/**
* struct perf_event_cpu_context - per cpu event context structure
*/
struct perf_cpu_context {
struct perf_event_context ctx;
struct perf_event_context *task_ctx;
int active_oncpu;
int max_pertask;
int exclusive;
/*
* Recursion avoidance:
*
* task, softirq, irq, nmi context
*/
int recursion[4];
};
struct perf_output_handle {
struct perf_event *event;
struct perf_mmap_data *data;
unsigned long head;
unsigned long offset;
int nmi;
int sample;
int locked;
unsigned long flags;
};
#ifdef CONFIG_PERF_EVENTS
/*
* Set by architecture code:
*/
extern int perf_max_events;
extern const struct pmu *hw_perf_event_init(struct perf_event *event);
extern void perf_event_task_sched_in(struct task_struct *task, int cpu);
extern void perf_event_task_sched_out(struct task_struct *task,
struct task_struct *next, int cpu);
extern void perf_event_task_tick(struct task_struct *task, int cpu);
extern int perf_event_init_task(struct task_struct *child);
extern void perf_event_exit_task(struct task_struct *child);
extern void perf_event_free_task(struct task_struct *task);
extern void set_perf_event_pending(void);
extern void perf_event_do_pending(void);
extern void perf_event_print_debug(void);
extern void __perf_disable(void);
extern bool __perf_enable(void);
extern void perf_disable(void);
extern void perf_enable(void);
extern int perf_event_task_disable(void);
extern int perf_event_task_enable(void);
extern int hw_perf_group_sched_in(struct perf_event *group_leader,
struct perf_cpu_context *cpuctx,
struct perf_event_context *ctx, int cpu);
extern void perf_event_update_userpage(struct perf_event *event);
struct perf_sample_data {
u64 type;
u64 ip;
struct {
u32 pid;
u32 tid;
} tid_entry;
u64 time;
u64 addr;
u64 id;
u64 stream_id;
struct {
u32 cpu;
u32 reserved;
} cpu_entry;
u64 period;
struct perf_callchain_entry *callchain;
struct perf_raw_record *raw;
};
extern void perf_output_sample(struct perf_output_handle *handle,
struct perf_event_header *header,
struct perf_sample_data *data,
struct perf_event *event);
extern void perf_prepare_sample(struct perf_event_header *header,
struct perf_sample_data *data,
struct perf_event *event,
struct pt_regs *regs);
extern int perf_event_overflow(struct perf_event *event, int nmi,
struct perf_sample_data *data,
struct pt_regs *regs);
/*
* Return 1 for a software event, 0 for a hardware event
*/
static inline int is_software_event(struct perf_event *event)
{
return (event->attr.type != PERF_TYPE_RAW) &&
(event->attr.type != PERF_TYPE_HARDWARE) &&
(event->attr.type != PERF_TYPE_HW_CACHE);
}
extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX];
extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64);
static inline void
perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
{
if (atomic_read(&perf_swevent_enabled[event_id]))
__perf_sw_event(event_id, nr, nmi, regs, addr);
}
extern void __perf_event_mmap(struct vm_area_struct *vma);
static inline void perf_event_mmap(struct vm_area_struct *vma)
{
if (vma->vm_flags & VM_EXEC)
__perf_event_mmap(vma);
}
extern void perf_event_comm(struct task_struct *tsk);
extern void perf_event_fork(struct task_struct *tsk);
extern struct perf_callchain_entry *perf_callchain(struct pt_regs *regs);
extern int sysctl_perf_event_paranoid;
extern int sysctl_perf_event_mlock;
extern int sysctl_perf_event_sample_rate;
extern void perf_event_init(void);
extern void perf_tp_event(int event_id, u64 addr, u64 count,
void *record, int entry_size);
#ifndef perf_misc_flags
#define perf_misc_flags(regs) (user_mode(regs) ? PERF_RECORD_MISC_USER : \
PERF_RECORD_MISC_KERNEL)
#define perf_instruction_pointer(regs) instruction_pointer(regs)
#endif
extern int perf_output_begin(struct perf_output_handle *handle,
struct perf_event *event, unsigned int size,
int nmi, int sample);
extern void perf_output_end(struct perf_output_handle *handle);
extern void perf_output_copy(struct perf_output_handle *handle,
const void *buf, unsigned int len);
#else
static inline void
perf_event_task_sched_in(struct task_struct *task, int cpu) { }
static inline void
perf_event_task_sched_out(struct task_struct *task,
struct task_struct *next, int cpu) { }
static inline void
perf_event_task_tick(struct task_struct *task, int cpu) { }
static inline int perf_event_init_task(struct task_struct *child) { return 0; }
static inline void perf_event_exit_task(struct task_struct *child) { }
static inline void perf_event_free_task(struct task_struct *task) { }
static inline void perf_event_do_pending(void) { }
static inline void perf_event_print_debug(void) { }
static inline void perf_disable(void) { }
static inline void perf_enable(void) { }
static inline int perf_event_task_disable(void) { return -EINVAL; }
static inline int perf_event_task_enable(void) { return -EINVAL; }
static inline void
perf_sw_event(u32 event_id, u64 nr, int nmi,
struct pt_regs *regs, u64 addr) { }
static inline void perf_event_mmap(struct vm_area_struct *vma) { }
static inline void perf_event_comm(struct task_struct *tsk) { }
static inline void perf_event_fork(struct task_struct *tsk) { }
static inline void perf_event_init(void) { }
#endif
#define perf_output_put(handle, x) \
perf_output_copy((handle), &(x), sizeof(x))
#endif /* __KERNEL__ */
#endif /* _LINUX_PERF_EVENT_H */

4
include/linux/prctl.h
View File

@ -85,7 +85,7 @@
#define PR_SET_TIMERSLACK 29
#define PR_GET_TIMERSLACK 30
#define PR_TASK_PERF_COUNTERS_DISABLE 31
#define PR_TASK_PERF_COUNTERS_ENABLE 32
#define PR_TASK_PERF_EVENTS_DISABLE 31
#define PR_TASK_PERF_EVENTS_ENABLE 32
#endif /* _LINUX_PRCTL_H */

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