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sparc: add basic support for 'perf'

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This wires up the perf_counter_open() syscall so that basic
software support for perf is working.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jens Axboe 2009-09-04 02:56:22 -07:00 committed by David S. Miller
parent a29889a536
commit 825c9fb47a
6 changed files with 21 additions and 4 deletions
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2
arch/sparc/Kconfig
View file

@ -25,6 +25,7 @@ config SPARC
select ARCH_WANT_OPTIONAL_GPIOLIB
select RTC_CLASS
select RTC_DRV_M48T59
select HAVE_PERF_COUNTERS
config SPARC32
def_bool !64BIT
@ -44,6 +45,7 @@ config SPARC64
select RTC_DRV_BQ4802
select RTC_DRV_SUN4V
select RTC_DRV_STARFIRE
select HAVE_PERF_COUNTERS
config ARCH_DEFCONFIG
string

8
arch/sparc/include/asm/perf_counter.h Normal file
View file

@ -0,0 +1,8 @@
#ifndef __ASM_SPARC_PERF_COUNTER_H
#define __ASM_SPARC_PERF_COUNTER_H
static inline void set_perf_counter_pending(void) { }
#define PERF_COUNTER_INDEX_OFFSET 0
#endif

3
arch/sparc/include/asm/unistd.h
View file

@ -395,8 +395,9 @@
#define __NR_preadv 324
#define __NR_pwritev 325
#define __NR_rt_tgsigqueueinfo 326
#define __NR_perf_counter_open 327
#define NR_SYSCALLS 327
#define NR_SYSCALLS 328
#ifdef __32bit_syscall_numbers__
/* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,

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
/*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_counter_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
.word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_counter_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
.word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_counter_open

6
tools/perf/perf.h
View file

@ -41,6 +41,12 @@
#define cpu_relax() asm volatile("" ::: "memory");
#endif
#ifdef __sparc__
#include "../../arch/sparc/include/asm/unistd.h"
#define rmb() asm volatile("":::"memory")
#define cpu_relax() asm volatile("":::"memory")
#endif
#include <time.h>
#include <unistd.h>
#include <sys/types.h>