diff options
Diffstat (limited to 'tools/perf/arch/arm64')
20 files changed, 1772 insertions, 0 deletions
diff --git a/tools/perf/arch/arm64/Build b/tools/perf/arch/arm64/Build new file mode 100644 index 000000000..12ebc65ea --- /dev/null +++ b/tools/perf/arch/arm64/Build @@ -0,0 +1,2 @@ +perf-util-y += util/ +perf-test-y += tests/ diff --git a/tools/perf/arch/arm64/Makefile b/tools/perf/arch/arm64/Makefile new file mode 100644 index 000000000..44cc3f023 --- /dev/null +++ b/tools/perf/arch/arm64/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +PERF_HAVE_JITDUMP := 1 diff --git a/tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl b/tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl new file mode 100644 index 000000000..9a37930d4 --- /dev/null +++ b/tools/perf/arch/arm64/entry/syscalls/syscall_32.tbl @@ -0,0 +1,476 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# AArch32 (compat) system call definitions. +# +# Copyright (C) 2001-2005 Russell King +# Copyright (C) 2012 ARM Ltd. +# +# This file corresponds to arch/arm/tools/syscall.tbl +# for the native EABI syscalls and should be kept in sync +# Instead of the OABI syscalls, it contains pointers to +# the compat entry points where they differ from the native +# syscalls. +# +0 common restart_syscall sys_restart_syscall +1 common exit sys_exit +2 common fork sys_fork +3 common read sys_read +4 common write sys_write +5 common open sys_open compat_sys_open +6 common close sys_close +# 7 was sys_waitpid +8 common creat sys_creat +9 common link sys_link +10 common unlink sys_unlink +11 common execve sys_execve compat_sys_execve +12 common chdir sys_chdir +# 13 was sys_time +14 common mknod sys_mknod +15 common chmod sys_chmod +16 common lchown sys_lchown16 +# 17 was sys_break +# 18 was sys_stat +19 common lseek sys_lseek compat_sys_lseek +20 common getpid sys_getpid +21 common mount sys_mount +# 22 was sys_umount +23 common setuid sys_setuid16 +24 common getuid sys_getuid16 +# 25 was sys_stime +26 common ptrace sys_ptrace compat_sys_ptrace +# 27 was sys_alarm +# 28 was sys_fstat +29 common pause sys_pause +# 30 was sys_utime +# 31 was sys_stty +# 32 was sys_gtty +33 common access sys_access +34 common nice sys_nice +# 35 was sys_ftime +36 common sync sys_sync +37 common kill sys_kill +38 common rename sys_rename +39 common mkdir sys_mkdir +40 common rmdir sys_rmdir +41 common dup sys_dup +42 common pipe sys_pipe +43 common times sys_times compat_sys_times +# 44 was sys_prof +45 common brk sys_brk +46 common setgid sys_setgid16 +47 common getgid sys_getgid16 +# 48 was sys_signal +49 common geteuid sys_geteuid16 +50 common getegid sys_getegid16 +51 common acct sys_acct +52 common umount2 sys_umount +# 53 was sys_lock +54 common ioctl sys_ioctl compat_sys_ioctl +55 common fcntl sys_fcntl compat_sys_fcntl +# 56 was sys_mpx +57 common setpgid sys_setpgid +# 58 was sys_ulimit +# 59 was sys_olduname +60 common umask sys_umask +61 common chroot sys_chroot +62 common ustat sys_ustat compat_sys_ustat +63 common dup2 sys_dup2 +64 common getppid sys_getppid +65 common getpgrp sys_getpgrp +66 common setsid sys_setsid +67 common sigaction sys_sigaction compat_sys_sigaction +# 68 was sys_sgetmask +# 69 was sys_ssetmask +70 common setreuid sys_setreuid16 +71 common setregid sys_setregid16 +72 common sigsuspend sys_sigsuspend +73 common sigpending sys_sigpending compat_sys_sigpending +74 common sethostname sys_sethostname +75 common setrlimit sys_setrlimit compat_sys_setrlimit +# 76 was compat_sys_getrlimit +77 common getrusage sys_getrusage compat_sys_getrusage +78 common gettimeofday sys_gettimeofday compat_sys_gettimeofday +79 common settimeofday sys_settimeofday compat_sys_settimeofday +80 common getgroups sys_getgroups16 +81 common setgroups sys_setgroups16 +# 82 was compat_sys_select +83 common symlink sys_symlink +# 84 was sys_lstat +85 common readlink sys_readlink +86 common uselib sys_uselib +87 common swapon sys_swapon +88 common reboot sys_reboot +# 89 was sys_readdir +# 90 was sys_mmap +91 common munmap sys_munmap +92 common truncate sys_truncate compat_sys_truncate +93 common ftruncate sys_ftruncate compat_sys_ftruncate +94 common fchmod sys_fchmod +95 common fchown sys_fchown16 +96 common getpriority sys_getpriority +97 common setpriority sys_setpriority +# 98 was sys_profil +99 common statfs sys_statfs compat_sys_statfs +100 common fstatfs sys_fstatfs compat_sys_fstatfs +# 101 was sys_ioperm +# 102 was sys_socketcall +103 common syslog sys_syslog +104 common setitimer sys_setitimer compat_sys_setitimer +105 common getitimer sys_getitimer compat_sys_getitimer +106 common stat sys_newstat compat_sys_newstat +107 common lstat sys_newlstat compat_sys_newlstat +108 common fstat sys_newfstat compat_sys_newfstat +# 109 was sys_uname +# 110 was sys_iopl +111 common vhangup sys_vhangup +# 112 was sys_idle +# 113 was sys_syscall +114 common wait4 sys_wait4 compat_sys_wait4 +115 common swapoff sys_swapoff +116 common sysinfo sys_sysinfo compat_sys_sysinfo +# 117 was sys_ipc +118 common fsync sys_fsync +119 common sigreturn sys_sigreturn_wrapper compat_sys_sigreturn +120 common clone sys_clone +121 common setdomainname sys_setdomainname +122 common uname sys_newuname +# 123 was sys_modify_ldt +124 common adjtimex sys_adjtimex_time32 +125 common mprotect sys_mprotect +126 common sigprocmask sys_sigprocmask compat_sys_sigprocmask +# 127 was sys_create_module +128 common init_module sys_init_module +129 common delete_module sys_delete_module +# 130 was sys_get_kernel_syms +131 common quotactl sys_quotactl +132 common getpgid sys_getpgid +133 common fchdir sys_fchdir +134 common bdflush sys_ni_syscall +135 common sysfs sys_sysfs +136 common personality sys_personality +# 137 was sys_afs_syscall +138 common setfsuid sys_setfsuid16 +139 common setfsgid sys_setfsgid16 +140 common _llseek sys_llseek +141 common getdents sys_getdents compat_sys_getdents +142 common _newselect sys_select compat_sys_select +143 common flock sys_flock +144 common msync sys_msync +145 common readv sys_readv +146 common writev sys_writev +147 common getsid sys_getsid +148 common fdatasync sys_fdatasync +149 common _sysctl sys_ni_syscall +150 common mlock sys_mlock +151 common munlock sys_munlock +152 common mlockall sys_mlockall +153 common munlockall sys_munlockall +154 common sched_setparam sys_sched_setparam +155 common sched_getparam sys_sched_getparam +156 common sched_setscheduler sys_sched_setscheduler +157 common sched_getscheduler sys_sched_getscheduler +158 common sched_yield sys_sched_yield +159 common sched_get_priority_max sys_sched_get_priority_max +160 common sched_get_priority_min sys_sched_get_priority_min +161 common sched_rr_get_interval sys_sched_rr_get_interval_time32 +162 common nanosleep sys_nanosleep_time32 +163 common mremap sys_mremap +164 common setresuid sys_setresuid16 +165 common getresuid sys_getresuid16 +# 166 was sys_vm86 +# 167 was sys_query_module +168 common poll sys_poll +169 common nfsservctl sys_ni_syscall +170 common setresgid sys_setresgid16 +171 common getresgid sys_getresgid16 +172 common prctl sys_prctl +173 common rt_sigreturn sys_rt_sigreturn_wrapper compat_sys_rt_sigreturn +174 common rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction +175 common rt_sigprocmask sys_rt_sigprocmask compat_sys_rt_sigprocmask +176 common rt_sigpending sys_rt_sigpending compat_sys_rt_sigpending +177 common rt_sigtimedwait sys_rt_sigtimedwait_time32 compat_sys_rt_sigtimedwait_time32 +178 common rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo +179 common rt_sigsuspend sys_rt_sigsuspend compat_sys_rt_sigsuspend +180 common pread64 sys_pread64 compat_sys_aarch32_pread64 +181 common pwrite64 sys_pwrite64 compat_sys_aarch32_pwrite64 +182 common chown sys_chown16 +183 common getcwd sys_getcwd +184 common capget sys_capget +185 common capset sys_capset +186 common sigaltstack sys_sigaltstack compat_sys_sigaltstack +187 common sendfile sys_sendfile compat_sys_sendfile +# 188 reserved +# 189 reserved +190 common vfork sys_vfork +# SuS compliant getrlimit +191 common ugetrlimit sys_getrlimit compat_sys_getrlimit +192 common mmap2 sys_mmap2 compat_sys_aarch32_mmap2 +193 common truncate64 sys_truncate64 compat_sys_aarch32_truncate64 +194 common ftruncate64 sys_ftruncate64 compat_sys_aarch32_ftruncate64 +195 common stat64 sys_stat64 +196 common lstat64 sys_lstat64 +197 common fstat64 sys_fstat64 +198 common lchown32 sys_lchown +199 common getuid32 sys_getuid +200 common getgid32 sys_getgid +201 common geteuid32 sys_geteuid +202 common getegid32 sys_getegid +203 common setreuid32 sys_setreuid +204 common setregid32 sys_setregid +205 common getgroups32 sys_getgroups +206 common setgroups32 sys_setgroups +207 common fchown32 sys_fchown +208 common setresuid32 sys_setresuid +209 common getresuid32 sys_getresuid +210 common setresgid32 sys_setresgid +211 common getresgid32 sys_getresgid +212 common chown32 sys_chown +213 common setuid32 sys_setuid +214 common setgid32 sys_setgid +215 common setfsuid32 sys_setfsuid +216 common setfsgid32 sys_setfsgid +217 common getdents64 sys_getdents64 +218 common pivot_root sys_pivot_root +219 common mincore sys_mincore +220 common madvise sys_madvise +221 common fcntl64 sys_fcntl64 compat_sys_fcntl64 +# 222 for tux +# 223 is unused +224 common gettid sys_gettid +225 common readahead sys_readahead compat_sys_aarch32_readahead +226 common setxattr sys_setxattr +227 common lsetxattr sys_lsetxattr +228 common fsetxattr sys_fsetxattr +229 common getxattr sys_getxattr +230 common lgetxattr sys_lgetxattr +231 common fgetxattr sys_fgetxattr +232 common listxattr sys_listxattr +233 common llistxattr sys_llistxattr +234 common flistxattr sys_flistxattr +235 common removexattr sys_removexattr +236 common lremovexattr sys_lremovexattr +237 common fremovexattr sys_fremovexattr +238 common tkill sys_tkill +239 common sendfile64 sys_sendfile64 +240 common futex sys_futex_time32 +241 common sched_setaffinity sys_sched_setaffinity compat_sys_sched_setaffinity +242 common sched_getaffinity sys_sched_getaffinity compat_sys_sched_getaffinity +243 common io_setup sys_io_setup compat_sys_io_setup +244 common io_destroy sys_io_destroy +245 common io_getevents sys_io_getevents_time32 +246 common io_submit sys_io_submit compat_sys_io_submit +247 common io_cancel sys_io_cancel +248 common exit_group sys_exit_group +249 common lookup_dcookie sys_ni_syscall +250 common epoll_create sys_epoll_create +251 common epoll_ctl sys_epoll_ctl +252 common epoll_wait sys_epoll_wait +253 common remap_file_pages sys_remap_file_pages +# 254 for set_thread_area +# 255 for get_thread_area +256 common set_tid_address sys_set_tid_address +257 common timer_create sys_timer_create compat_sys_timer_create +258 common timer_settime sys_timer_settime32 +259 common timer_gettime sys_timer_gettime32 +260 common timer_getoverrun sys_timer_getoverrun +261 common timer_delete sys_timer_delete +262 common clock_settime sys_clock_settime32 +263 common clock_gettime sys_clock_gettime32 +264 common clock_getres sys_clock_getres_time32 +265 common clock_nanosleep sys_clock_nanosleep_time32 +266 common statfs64 sys_statfs64_wrapper compat_sys_aarch32_statfs64 +267 common fstatfs64 sys_fstatfs64_wrapper compat_sys_aarch32_fstatfs64 +268 common tgkill sys_tgkill +269 common utimes sys_utimes_time32 +270 common arm_fadvise64_64 sys_arm_fadvise64_64 compat_sys_aarch32_fadvise64_64 +271 common pciconfig_iobase sys_pciconfig_iobase +272 common pciconfig_read sys_pciconfig_read +273 common pciconfig_write sys_pciconfig_write +274 common mq_open sys_mq_open compat_sys_mq_open +275 common mq_unlink sys_mq_unlink +276 common mq_timedsend sys_mq_timedsend_time32 +277 common mq_timedreceive sys_mq_timedreceive_time32 +278 common mq_notify sys_mq_notify compat_sys_mq_notify +279 common mq_getsetattr sys_mq_getsetattr compat_sys_mq_getsetattr +280 common waitid sys_waitid compat_sys_waitid +281 common socket sys_socket +282 common bind sys_bind +283 common connect sys_connect +284 common listen sys_listen +285 common accept sys_accept +286 common getsockname sys_getsockname +287 common getpeername sys_getpeername +288 common socketpair sys_socketpair +289 common send sys_send +290 common sendto sys_sendto +291 common recv sys_recv compat_sys_recv +292 common recvfrom sys_recvfrom compat_sys_recvfrom +293 common shutdown sys_shutdown +294 common setsockopt sys_setsockopt +295 common getsockopt sys_getsockopt +296 common sendmsg sys_sendmsg compat_sys_sendmsg +297 common recvmsg sys_recvmsg compat_sys_recvmsg +298 common semop sys_semop +299 common semget sys_semget +300 common semctl sys_old_semctl compat_sys_old_semctl +301 common msgsnd sys_msgsnd compat_sys_msgsnd +302 common msgrcv sys_msgrcv compat_sys_msgrcv +303 common msgget sys_msgget +304 common msgctl sys_old_msgctl compat_sys_old_msgctl +305 common shmat sys_shmat compat_sys_shmat +306 common shmdt sys_shmdt +307 common shmget sys_shmget +308 common shmctl sys_old_shmctl compat_sys_old_shmctl +309 common add_key sys_add_key +310 common request_key sys_request_key +311 common keyctl sys_keyctl compat_sys_keyctl +312 common semtimedop sys_semtimedop_time32 +313 common vserver sys_ni_syscall +314 common ioprio_set sys_ioprio_set +315 common ioprio_get sys_ioprio_get +316 common inotify_init sys_inotify_init +317 common inotify_add_watch sys_inotify_add_watch +318 common inotify_rm_watch sys_inotify_rm_watch +319 common mbind sys_mbind +320 common get_mempolicy sys_get_mempolicy +321 common set_mempolicy sys_set_mempolicy +322 common openat sys_openat compat_sys_openat +323 common mkdirat sys_mkdirat +324 common mknodat sys_mknodat +325 common fchownat sys_fchownat +326 common futimesat sys_futimesat_time32 +327 common fstatat64 sys_fstatat64 +328 common unlinkat sys_unlinkat +329 common renameat sys_renameat +330 common linkat sys_linkat +331 common symlinkat sys_symlinkat +332 common readlinkat sys_readlinkat +333 common fchmodat sys_fchmodat +334 common faccessat sys_faccessat +335 common pselect6 sys_pselect6_time32 compat_sys_pselect6_time32 +336 common ppoll sys_ppoll_time32 compat_sys_ppoll_time32 +337 common unshare sys_unshare +338 common set_robust_list sys_set_robust_list compat_sys_set_robust_list +339 common get_robust_list sys_get_robust_list compat_sys_get_robust_list +340 common splice sys_splice +341 common arm_sync_file_range sys_sync_file_range2 compat_sys_aarch32_sync_file_range2 +342 common tee sys_tee +343 common vmsplice sys_vmsplice +344 common move_pages sys_move_pages +345 common getcpu sys_getcpu +346 common epoll_pwait sys_epoll_pwait compat_sys_epoll_pwait +347 common kexec_load sys_kexec_load compat_sys_kexec_load +348 common utimensat sys_utimensat_time32 +349 common signalfd sys_signalfd compat_sys_signalfd +350 common timerfd_create sys_timerfd_create +351 common eventfd sys_eventfd +352 common fallocate sys_fallocate compat_sys_aarch32_fallocate +353 common timerfd_settime sys_timerfd_settime32 +354 common timerfd_gettime sys_timerfd_gettime32 +355 common signalfd4 sys_signalfd4 compat_sys_signalfd4 +356 common eventfd2 sys_eventfd2 +357 common epoll_create1 sys_epoll_create1 +358 common dup3 sys_dup3 +359 common pipe2 sys_pipe2 +360 common inotify_init1 sys_inotify_init1 +361 common preadv sys_preadv compat_sys_preadv +362 common pwritev sys_pwritev compat_sys_pwritev +363 common rt_tgsigqueueinfo sys_rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo +364 common perf_event_open sys_perf_event_open +365 common recvmmsg sys_recvmmsg_time32 compat_sys_recvmmsg_time32 +366 common accept4 sys_accept4 +367 common fanotify_init sys_fanotify_init +368 common fanotify_mark sys_fanotify_mark compat_sys_fanotify_mark +369 common prlimit64 sys_prlimit64 +370 common name_to_handle_at sys_name_to_handle_at +371 common open_by_handle_at sys_open_by_handle_at compat_sys_open_by_handle_at +372 common clock_adjtime sys_clock_adjtime32 +373 common syncfs sys_syncfs +374 common sendmmsg sys_sendmmsg compat_sys_sendmmsg +375 common setns sys_setns +376 common process_vm_readv sys_process_vm_readv +377 common process_vm_writev sys_process_vm_writev +378 common kcmp sys_kcmp +379 common finit_module sys_finit_module +380 common sched_setattr sys_sched_setattr +381 common sched_getattr sys_sched_getattr +382 common renameat2 sys_renameat2 +383 common seccomp sys_seccomp +384 common getrandom sys_getrandom +385 common memfd_create sys_memfd_create +386 common bpf sys_bpf +387 common execveat sys_execveat compat_sys_execveat +388 common userfaultfd sys_userfaultfd +389 common membarrier sys_membarrier +390 common mlock2 sys_mlock2 +391 common copy_file_range sys_copy_file_range +392 common preadv2 sys_preadv2 compat_sys_preadv2 +393 common pwritev2 sys_pwritev2 compat_sys_pwritev2 +394 common pkey_mprotect sys_pkey_mprotect +395 common pkey_alloc sys_pkey_alloc +396 common pkey_free sys_pkey_free +397 common statx sys_statx +398 common rseq sys_rseq +399 common io_pgetevents sys_io_pgetevents_time32 compat_sys_io_pgetevents +400 common migrate_pages sys_migrate_pages +401 common kexec_file_load sys_kexec_file_load +# 402 is unused +403 common clock_gettime64 sys_clock_gettime +404 common clock_settime64 sys_clock_settime +405 common clock_adjtime64 sys_clock_adjtime +406 common clock_getres_time64 sys_clock_getres +407 common clock_nanosleep_time64 sys_clock_nanosleep +408 common timer_gettime64 sys_timer_gettime +409 common timer_settime64 sys_timer_settime +410 common timerfd_gettime64 sys_timerfd_gettime +411 common timerfd_settime64 sys_timerfd_settime +412 common utimensat_time64 sys_utimensat +413 common pselect6_time64 sys_pselect6 compat_sys_pselect6_time64 +414 common ppoll_time64 sys_ppoll compat_sys_ppoll_time64 +416 common io_pgetevents_time64 sys_io_pgetevents compat_sys_io_pgetevents_time64 +417 common recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64 +418 common mq_timedsend_time64 sys_mq_timedsend +419 common mq_timedreceive_time64 sys_mq_timedreceive +420 common semtimedop_time64 sys_semtimedop +421 common rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64 +422 common futex_time64 sys_futex +423 common sched_rr_get_interval_time64 sys_sched_rr_get_interval +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register +428 common open_tree sys_open_tree +429 common move_mount sys_move_mount +430 common fsopen sys_fsopen +431 common fsconfig sys_fsconfig +432 common fsmount sys_fsmount +433 common fspick sys_fspick +434 common pidfd_open sys_pidfd_open +435 common clone3 sys_clone3 +436 common close_range sys_close_range +437 common openat2 sys_openat2 +438 common pidfd_getfd sys_pidfd_getfd +439 common faccessat2 sys_faccessat2 +440 common process_madvise sys_process_madvise +441 common epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2 +442 common mount_setattr sys_mount_setattr +443 common quotactl_fd sys_quotactl_fd +444 common landlock_create_ruleset sys_landlock_create_ruleset +445 common landlock_add_rule sys_landlock_add_rule +446 common landlock_restrict_self sys_landlock_restrict_self +# 447 reserved for memfd_secret +448 common process_mrelease sys_process_mrelease +449 common futex_waitv sys_futex_waitv +450 common set_mempolicy_home_node sys_set_mempolicy_home_node +451 common cachestat sys_cachestat +452 common fchmodat2 sys_fchmodat2 +453 common map_shadow_stack sys_map_shadow_stack +454 common futex_wake sys_futex_wake +455 common futex_wait sys_futex_wait +456 common futex_requeue sys_futex_requeue +457 common statmount sys_statmount +458 common listmount sys_listmount +459 common lsm_get_self_attr sys_lsm_get_self_attr +460 common lsm_set_self_attr sys_lsm_set_self_attr +461 common lsm_list_modules sys_lsm_list_modules +462 common mseal sys_mseal diff --git a/tools/perf/arch/arm64/entry/syscalls/syscall_64.tbl b/tools/perf/arch/arm64/entry/syscalls/syscall_64.tbl new file mode 120000 index 000000000..4fdd58f10 --- /dev/null +++ b/tools/perf/arch/arm64/entry/syscalls/syscall_64.tbl @@ -0,0 +1 @@ +../../../../../scripts/syscall.tbl
\ No newline at end of file diff --git a/tools/perf/arch/arm64/include/arch-tests.h b/tools/perf/arch/arm64/include/arch-tests.h new file mode 100644 index 000000000..474d7cf5a --- /dev/null +++ b/tools/perf/arch/arm64/include/arch-tests.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ARCH_TESTS_H +#define ARCH_TESTS_H + +struct test_suite; + +int test__cpuid_match(struct test_suite *test, int subtest); +extern struct test_suite *arch_tests[]; + +#endif diff --git a/tools/perf/arch/arm64/include/dwarf-regs-table.h b/tools/perf/arch/arm64/include/dwarf-regs-table.h new file mode 100644 index 000000000..177b2855f --- /dev/null +++ b/tools/perf/arch/arm64/include/dwarf-regs-table.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifdef DEFINE_DWARF_REGSTR_TABLE +/* This is included in perf/util/dwarf-regs.c */ + +static const char * const aarch64_regstr_tbl[] = { + "%x0", "%x1", "%x2", "%x3", "%x4", + "%x5", "%x6", "%x7", "%x8", "%x9", + "%x10", "%x11", "%x12", "%x13", "%x14", + "%x15", "%x16", "%x17", "%x18", "%x19", + "%x20", "%x21", "%x22", "%x23", "%x24", + "%x25", "%x26", "%x27", "%x28", "%x29", + "%lr", "%sp", +}; +#endif diff --git a/tools/perf/arch/arm64/include/perf_regs.h b/tools/perf/arch/arm64/include/perf_regs.h new file mode 100644 index 000000000..372f2565a --- /dev/null +++ b/tools/perf/arch/arm64/include/perf_regs.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ARCH_PERF_REGS_H +#define ARCH_PERF_REGS_H + +#include <stdlib.h> +#include <linux/types.h> +#define perf_event_arm_regs perf_event_arm64_regs +#include "../../../../arch/arm64/include/uapi/asm/perf_regs.h" +#undef perf_event_arm_regs + +void perf_regs_load(u64 *regs); + +#define PERF_REGS_MASK ((1ULL << PERF_REG_ARM64_MAX) - 1) +#define PERF_REGS_MAX PERF_REG_ARM64_MAX +#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_64 + +#endif /* ARCH_PERF_REGS_H */ diff --git a/tools/perf/arch/arm64/tests/Build b/tools/perf/arch/arm64/tests/Build new file mode 100644 index 000000000..d44c9de92 --- /dev/null +++ b/tools/perf/arch/arm64/tests/Build @@ -0,0 +1,5 @@ +perf-test-y += regs_load.o +perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o + +perf-test-y += arch-tests.o +perf-test-y += cpuid-match.o diff --git a/tools/perf/arch/arm64/tests/arch-tests.c b/tools/perf/arch/arm64/tests/arch-tests.c new file mode 100644 index 000000000..74932e72c --- /dev/null +++ b/tools/perf/arch/arm64/tests/arch-tests.c @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <string.h> +#include "tests/tests.h" +#include "arch-tests.h" + + +DEFINE_SUITE("arm64 CPUID matching", cpuid_match); + +struct test_suite *arch_tests[] = { +#ifdef HAVE_DWARF_UNWIND_SUPPORT + &suite__dwarf_unwind, +#endif + &suite__cpuid_match, + NULL, +}; diff --git a/tools/perf/arch/arm64/tests/cpuid-match.c b/tools/perf/arch/arm64/tests/cpuid-match.c new file mode 100644 index 000000000..e8e3947cc --- /dev/null +++ b/tools/perf/arch/arm64/tests/cpuid-match.c @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/compiler.h> + +#include "arch-tests.h" +#include "tests/tests.h" +#include "util/header.h" + +int test__cpuid_match(struct test_suite *test __maybe_unused, + int subtest __maybe_unused) +{ + /* midr with no leading zeros matches */ + if (strcmp_cpuid_str("0x410fd0c0", "0x00000000410fd0c0")) + return -1; + /* Upper case matches */ + if (strcmp_cpuid_str("0x410fd0c0", "0x00000000410FD0C0")) + return -1; + /* r0p0 = r0p0 matches */ + if (strcmp_cpuid_str("0x00000000410fd480", "0x00000000410fd480")) + return -1; + /* r0p1 > r0p0 matches */ + if (strcmp_cpuid_str("0x00000000410fd480", "0x00000000410fd481")) + return -1; + /* r1p0 > r0p0 matches*/ + if (strcmp_cpuid_str("0x00000000410fd480", "0x00000000411fd480")) + return -1; + /* r0p0 < r0p1 doesn't match */ + if (!strcmp_cpuid_str("0x00000000410fd481", "0x00000000410fd480")) + return -1; + /* r0p0 < r1p0 doesn't match */ + if (!strcmp_cpuid_str("0x00000000411fd480", "0x00000000410fd480")) + return -1; + /* Different CPU doesn't match */ + if (!strcmp_cpuid_str("0x00000000410fd4c0", "0x00000000430f0af0")) + return -1; + + return 0; +} diff --git a/tools/perf/arch/arm64/tests/dwarf-unwind.c b/tools/perf/arch/arm64/tests/dwarf-unwind.c new file mode 100644 index 000000000..440d00f0d --- /dev/null +++ b/tools/perf/arch/arm64/tests/dwarf-unwind.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <string.h> +#include "perf_regs.h" +#include "thread.h" +#include "map.h" +#include "maps.h" +#include "event.h" +#include "debug.h" +#include "tests/tests.h" + +#define STACK_SIZE 8192 + +static int sample_ustack(struct perf_sample *sample, + struct thread *thread, u64 *regs) +{ + struct stack_dump *stack = &sample->user_stack; + struct map *map; + unsigned long sp; + u64 stack_size, *buf; + + buf = malloc(STACK_SIZE); + if (!buf) { + pr_debug("failed to allocate sample uregs data\n"); + return -1; + } + + sp = (unsigned long) regs[PERF_REG_ARM64_SP]; + + map = maps__find(thread__maps(thread), (u64)sp); + if (!map) { + pr_debug("failed to get stack map\n"); + free(buf); + return -1; + } + + stack_size = map__end(map) - sp; + stack_size = stack_size > STACK_SIZE ? STACK_SIZE : stack_size; + + memcpy(buf, (void *) sp, stack_size); + stack->data = (char *) buf; + stack->size = stack_size; + return 0; +} + +int test__arch_unwind_sample(struct perf_sample *sample, + struct thread *thread) +{ + struct regs_dump *regs = perf_sample__user_regs(sample); + u64 *buf; + + buf = calloc(1, sizeof(u64) * PERF_REGS_MAX); + if (!buf) { + pr_debug("failed to allocate sample uregs data\n"); + return -1; + } + + perf_regs_load(buf); + regs->abi = PERF_SAMPLE_REGS_ABI; + regs->regs = buf; + regs->mask = PERF_REGS_MASK; + + return sample_ustack(sample, thread, buf); +} diff --git a/tools/perf/arch/arm64/tests/regs_load.S b/tools/perf/arch/arm64/tests/regs_load.S new file mode 100644 index 000000000..d49de40b6 --- /dev/null +++ b/tools/perf/arch/arm64/tests/regs_load.S @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include <linux/linkage.h> + +.text +.type perf_regs_load,%function +#define STR_REG(r) str x##r, [x0, 8 * r] +#define LDR_REG(r) ldr x##r, [x0, 8 * r] +#define SP (8 * 31) +#define PC (8 * 32) +SYM_FUNC_START(perf_regs_load) + STR_REG(0) + STR_REG(1) + STR_REG(2) + STR_REG(3) + STR_REG(4) + STR_REG(5) + STR_REG(6) + STR_REG(7) + STR_REG(8) + STR_REG(9) + STR_REG(10) + STR_REG(11) + STR_REG(12) + STR_REG(13) + STR_REG(14) + STR_REG(15) + STR_REG(16) + STR_REG(17) + STR_REG(18) + STR_REG(19) + STR_REG(20) + STR_REG(21) + STR_REG(22) + STR_REG(23) + STR_REG(24) + STR_REG(25) + STR_REG(26) + STR_REG(27) + STR_REG(28) + STR_REG(29) + STR_REG(30) + mov x1, sp + str x1, [x0, #SP] + str x30, [x0, #PC] + LDR_REG(1) + ret +SYM_FUNC_END(perf_regs_load) diff --git a/tools/perf/arch/arm64/util/Build b/tools/perf/arch/arm64/util/Build new file mode 100644 index 000000000..15b7340b7 --- /dev/null +++ b/tools/perf/arch/arm64/util/Build @@ -0,0 +1,9 @@ +perf-util-y += ../../arm/util/auxtrace.o +perf-util-y += ../../arm/util/cs-etm.o +perf-util-y += ../../arm/util/pmu.o +perf-util-y += arm-spe.o +perf-util-y += header.o +perf-util-y += hisi-ptt.o +perf-util-y += mem-events.o +perf-util-y += pmu.o +perf-util-y += tsc.o diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c new file mode 100644 index 000000000..91bb28cad --- /dev/null +++ b/tools/perf/arch/arm64/util/arm-spe.c @@ -0,0 +1,695 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Arm Statistical Profiling Extensions (SPE) support + * Copyright (c) 2017-2018, Arm Ltd. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/bitops.h> +#include <linux/log2.h> +#include <linux/string.h> +#include <linux/zalloc.h> +#include <errno.h> +#include <time.h> + +#include "../../../util/cpumap.h" +#include "../../../util/event.h" +#include "../../../util/evsel.h" +#include "../../../util/evsel_config.h" +#include "../../../util/evlist.h" +#include "../../../util/session.h" +#include <internal/lib.h> // page_size +#include "../../../util/pmu.h" +#include "../../../util/debug.h" +#include "../../../util/auxtrace.h" +#include "../../../util/record.h" +#include "../../../util/header.h" +#include "../../../util/arm-spe.h" +#include <tools/libc_compat.h> // reallocarray + +#define ARM_SPE_CPU_MAGIC 0x1010101010101010ULL + +#define KiB(x) ((x) * 1024) +#define MiB(x) ((x) * 1024 * 1024) + +struct arm_spe_recording { + struct auxtrace_record itr; + struct perf_pmu *arm_spe_pmu; + struct evlist *evlist; + int wrapped_cnt; + bool *wrapped; +}; + +/* Iterate config list to detect if the "freq" parameter is set */ +static bool arm_spe_is_set_freq(struct evsel *evsel) +{ + struct evsel_config_term *term; + + list_for_each_entry(term, &evsel->config_terms, list) { + if (term->type == EVSEL__CONFIG_TERM_FREQ) + return true; + } + + return false; +} + +/* + * arm_spe_find_cpus() returns a new cpu map, and the caller should invoke + * perf_cpu_map__put() to release the map after use. + */ +static struct perf_cpu_map *arm_spe_find_cpus(struct evlist *evlist) +{ + struct perf_cpu_map *event_cpus = evlist->core.user_requested_cpus; + struct perf_cpu_map *online_cpus = perf_cpu_map__new_online_cpus(); + struct perf_cpu_map *intersect_cpus; + + /* cpu map is not "any" CPU , we have specific CPUs to work with */ + if (!perf_cpu_map__has_any_cpu(event_cpus)) { + intersect_cpus = perf_cpu_map__intersect(event_cpus, online_cpus); + perf_cpu_map__put(online_cpus); + /* Event can be "any" CPU so count all CPUs. */ + } else { + intersect_cpus = online_cpus; + } + + return intersect_cpus; +} + +static size_t +arm_spe_info_priv_size(struct auxtrace_record *itr __maybe_unused, + struct evlist *evlist) +{ + struct perf_cpu_map *cpu_map = arm_spe_find_cpus(evlist); + size_t size; + + if (!cpu_map) + return 0; + + size = ARM_SPE_AUXTRACE_PRIV_MAX + + ARM_SPE_CPU_PRIV_MAX * perf_cpu_map__nr(cpu_map); + size *= sizeof(u64); + + perf_cpu_map__put(cpu_map); + return size; +} + +static int arm_spe_save_cpu_header(struct auxtrace_record *itr, + struct perf_cpu cpu, __u64 data[]) +{ + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + struct perf_pmu *pmu = NULL; + char *cpuid = NULL; + u64 val; + + /* Read CPU MIDR */ + cpuid = get_cpuid_allow_env_override(cpu); + if (!cpuid) + return -ENOMEM; + val = strtol(cpuid, NULL, 16); + + data[ARM_SPE_MAGIC] = ARM_SPE_CPU_MAGIC; + data[ARM_SPE_CPU] = cpu.cpu; + data[ARM_SPE_CPU_NR_PARAMS] = ARM_SPE_CPU_PRIV_MAX - ARM_SPE_CPU_MIDR; + data[ARM_SPE_CPU_MIDR] = val; + + /* Find the associate Arm SPE PMU for the CPU */ + if (perf_cpu_map__has(sper->arm_spe_pmu->cpus, cpu)) + pmu = sper->arm_spe_pmu; + + if (!pmu) { + /* No Arm SPE PMU is found */ + data[ARM_SPE_CPU_PMU_TYPE] = ULLONG_MAX; + data[ARM_SPE_CAP_MIN_IVAL] = 0; + data[ARM_SPE_CAP_EVENT_FILTER] = 0; + } else { + data[ARM_SPE_CPU_PMU_TYPE] = pmu->type; + + if (perf_pmu__scan_file(pmu, "caps/min_interval", "%lu", &val) != 1) + val = 0; + data[ARM_SPE_CAP_MIN_IVAL] = val; + + if (perf_pmu__scan_file(pmu, "caps/event_filter", "%lx", &val) != 1) + val = 0; + data[ARM_SPE_CAP_EVENT_FILTER] = val; + } + + free(cpuid); + return ARM_SPE_CPU_PRIV_MAX; +} + +static int arm_spe_info_fill(struct auxtrace_record *itr, + struct perf_session *session, + struct perf_record_auxtrace_info *auxtrace_info, + size_t priv_size) +{ + unsigned int i; + int ret; + size_t offset; + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + struct perf_pmu *arm_spe_pmu = sper->arm_spe_pmu; + struct perf_cpu_map *cpu_map; + struct perf_cpu cpu; + __u64 *data; + + if (priv_size != arm_spe_info_priv_size(itr, session->evlist)) + return -EINVAL; + + if (!session->evlist->core.nr_mmaps) + return -EINVAL; + + cpu_map = arm_spe_find_cpus(session->evlist); + if (!cpu_map) + return -EINVAL; + + auxtrace_info->type = PERF_AUXTRACE_ARM_SPE; + auxtrace_info->priv[ARM_SPE_HEADER_VERSION] = ARM_SPE_HEADER_CURRENT_VERSION; + auxtrace_info->priv[ARM_SPE_HEADER_SIZE] = + ARM_SPE_AUXTRACE_PRIV_MAX - ARM_SPE_HEADER_VERSION; + auxtrace_info->priv[ARM_SPE_PMU_TYPE_V2] = arm_spe_pmu->type; + auxtrace_info->priv[ARM_SPE_CPUS_NUM] = perf_cpu_map__nr(cpu_map); + + offset = ARM_SPE_AUXTRACE_PRIV_MAX; + perf_cpu_map__for_each_cpu(cpu, i, cpu_map) { + assert(offset < priv_size); + data = &auxtrace_info->priv[offset]; + ret = arm_spe_save_cpu_header(itr, cpu, data); + if (ret < 0) + goto out; + offset += ret; + } + + ret = 0; +out: + perf_cpu_map__put(cpu_map); + return ret; +} + +static void +arm_spe_snapshot_resolve_auxtrace_defaults(struct record_opts *opts, + bool privileged) +{ + /* + * The default snapshot size is the auxtrace mmap size. If neither auxtrace mmap size nor + * snapshot size is specified, then the default is 4MiB for privileged users, 128KiB for + * unprivileged users. + * + * The default auxtrace mmap size is 4MiB/page_size for privileged users, 128KiB for + * unprivileged users. If an unprivileged user does not specify mmap pages, the mmap pages + * will be reduced from the default 512KiB/page_size to 256KiB/page_size, otherwise the + * user is likely to get an error as they exceed their mlock limmit. + */ + + /* + * No size were given to '-S' or '-m,', so go with the default + */ + if (!opts->auxtrace_snapshot_size && !opts->auxtrace_mmap_pages) { + if (privileged) { + opts->auxtrace_mmap_pages = MiB(4) / page_size; + } else { + opts->auxtrace_mmap_pages = KiB(128) / page_size; + if (opts->mmap_pages == UINT_MAX) + opts->mmap_pages = KiB(256) / page_size; + } + } else if (!opts->auxtrace_mmap_pages && !privileged && opts->mmap_pages == UINT_MAX) { + opts->mmap_pages = KiB(256) / page_size; + } + + /* + * '-m,xyz' was specified but no snapshot size, so make the snapshot size as big as the + * auxtrace mmap area. + */ + if (!opts->auxtrace_snapshot_size) + opts->auxtrace_snapshot_size = opts->auxtrace_mmap_pages * (size_t)page_size; + + /* + * '-Sxyz' was specified but no auxtrace mmap area, so make the auxtrace mmap area big + * enough to fit the requested snapshot size. + */ + if (!opts->auxtrace_mmap_pages) { + size_t sz = opts->auxtrace_snapshot_size; + + sz = round_up(sz, page_size) / page_size; + opts->auxtrace_mmap_pages = roundup_pow_of_two(sz); + } +} + +static __u64 arm_spe_pmu__sample_period(const struct perf_pmu *arm_spe_pmu) +{ + static __u64 sample_period; + + if (sample_period) + return sample_period; + + /* + * If kernel driver doesn't advertise a minimum, + * use max allowable by PMSIDR_EL1.INTERVAL + */ + if (perf_pmu__scan_file(arm_spe_pmu, "caps/min_interval", "%llu", + &sample_period) != 1) { + pr_debug("arm_spe driver doesn't advertise a min. interval. Using 4096\n"); + sample_period = 4096; + } + return sample_period; +} + +static void arm_spe_setup_evsel(struct evsel *evsel, struct perf_cpu_map *cpus) +{ + u64 pa_enable_bit; + + evsel->core.attr.freq = 0; + evsel->core.attr.sample_period = arm_spe_pmu__sample_period(evsel->pmu); + evsel->needs_auxtrace_mmap = true; + + /* + * To obtain the auxtrace buffer file descriptor, the auxtrace event + * must come first. + */ + evlist__to_front(evsel->evlist, evsel); + + /* + * In the case of per-cpu mmaps, sample CPU for AUX event; + * also enable the timestamp tracing for samples correlation. + */ + if (!perf_cpu_map__is_any_cpu_or_is_empty(cpus)) { + evsel__set_sample_bit(evsel, CPU); + evsel__set_config_if_unset(evsel, "ts_enable", 1); + } + + /* + * Set this only so that perf report knows that SPE generates memory info. It has no effect + * on the opening of the event or the SPE data produced. + */ + evsel__set_sample_bit(evsel, DATA_SRC); + + /* + * The PHYS_ADDR flag does not affect the driver behaviour, it is used to + * inform that the resulting output's SPE samples contain physical addresses + * where applicable. + */ + + if (!evsel__get_config_val(evsel, "pa_enable", &pa_enable_bit)) + if (pa_enable_bit) + evsel__set_sample_bit(evsel, PHYS_ADDR); +} + +static int arm_spe_setup_aux_buffer(struct record_opts *opts) +{ + bool privileged = perf_event_paranoid_check(-1); + + /* + * we are in snapshot mode. + */ + if (opts->auxtrace_snapshot_mode) { + /* + * Command arguments '-Sxyz' and/or '-m,xyz' are missing, so fill those in with + * default values. + */ + if (!opts->auxtrace_snapshot_size || !opts->auxtrace_mmap_pages) + arm_spe_snapshot_resolve_auxtrace_defaults(opts, privileged); + + /* + * Snapshot size can't be bigger than the auxtrace area. + */ + if (opts->auxtrace_snapshot_size > opts->auxtrace_mmap_pages * (size_t)page_size) { + pr_err("Snapshot size %zu must not be greater than AUX area tracing mmap size %zu\n", + opts->auxtrace_snapshot_size, + opts->auxtrace_mmap_pages * (size_t)page_size); + return -EINVAL; + } + + /* + * Something went wrong somewhere - this shouldn't happen. + */ + if (!opts->auxtrace_snapshot_size || !opts->auxtrace_mmap_pages) { + pr_err("Failed to calculate default snapshot size and/or AUX area tracing mmap pages\n"); + return -EINVAL; + } + + pr_debug2("%sx snapshot size: %zu\n", ARM_SPE_PMU_NAME, + opts->auxtrace_snapshot_size); + } + + /* We are in full trace mode but '-m,xyz' wasn't specified */ + if (!opts->auxtrace_mmap_pages) { + if (privileged) { + opts->auxtrace_mmap_pages = MiB(4) / page_size; + } else { + opts->auxtrace_mmap_pages = KiB(128) / page_size; + if (opts->mmap_pages == UINT_MAX) + opts->mmap_pages = KiB(256) / page_size; + } + } + + /* Validate auxtrace_mmap_pages */ + if (opts->auxtrace_mmap_pages) { + size_t sz = opts->auxtrace_mmap_pages * (size_t)page_size; + size_t min_sz = KiB(8); + + if (sz < min_sz || !is_power_of_2(sz)) { + pr_err("Invalid mmap size for ARM SPE: must be at least %zuKiB and a power of 2\n", + min_sz / 1024); + return -EINVAL; + } + } + + return 0; +} + +static int arm_spe_setup_tracking_event(struct evlist *evlist, + struct record_opts *opts) +{ + int err; + struct evsel *tracking_evsel; + struct perf_cpu_map *cpus = evlist->core.user_requested_cpus; + + /* Add dummy event to keep tracking */ + err = parse_event(evlist, "dummy:u"); + if (err) + return err; + + tracking_evsel = evlist__last(evlist); + evlist__set_tracking_event(evlist, tracking_evsel); + + tracking_evsel->core.attr.freq = 0; + tracking_evsel->core.attr.sample_period = 1; + + /* In per-cpu case, always need the time of mmap events etc */ + if (!perf_cpu_map__is_any_cpu_or_is_empty(cpus)) { + evsel__set_sample_bit(tracking_evsel, TIME); + evsel__set_sample_bit(tracking_evsel, CPU); + + /* also track task context switch */ + if (!record_opts__no_switch_events(opts)) + tracking_evsel->core.attr.context_switch = 1; + } + + return 0; +} + +static int arm_spe_recording_options(struct auxtrace_record *itr, + struct evlist *evlist, + struct record_opts *opts) +{ + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + struct evsel *evsel, *tmp; + struct perf_cpu_map *cpus = evlist->core.user_requested_cpus; + bool discard = false; + int err; + u64 discard_bit; + + sper->evlist = evlist; + + evlist__for_each_entry(evlist, evsel) { + if (evsel__is_aux_event(evsel)) { + if (!strstarts(evsel->pmu->name, ARM_SPE_PMU_NAME)) { + pr_err("Found unexpected auxtrace event: %s\n", + evsel->pmu->name); + return -EINVAL; + } + opts->full_auxtrace = true; + + if (opts->user_freq != UINT_MAX || + arm_spe_is_set_freq(evsel)) { + pr_err("Arm SPE: Frequency is not supported. " + "Set period with -c option or PMU parameter (-e %s/period=NUM/).\n", + evsel->pmu->name); + return -EINVAL; + } + } + } + + if (!opts->full_auxtrace) + return 0; + + evlist__for_each_entry_safe(evlist, tmp, evsel) { + if (evsel__is_aux_event(evsel)) { + arm_spe_setup_evsel(evsel, cpus); + if (evsel__config_exists(evsel, "discard") && + !evsel__get_config_val(evsel, "discard", &discard_bit)) + discard = !!discard_bit; + } + } + + if (discard) + return 0; + + err = arm_spe_setup_aux_buffer(opts); + if (err) + return err; + + return arm_spe_setup_tracking_event(evlist, opts); +} + +static int arm_spe_parse_snapshot_options(struct auxtrace_record *itr __maybe_unused, + struct record_opts *opts, + const char *str) +{ + unsigned long long snapshot_size = 0; + char *endptr; + + if (str) { + snapshot_size = strtoull(str, &endptr, 0); + if (*endptr || snapshot_size > SIZE_MAX) + return -1; + } + + opts->auxtrace_snapshot_mode = true; + opts->auxtrace_snapshot_size = snapshot_size; + + return 0; +} + +static int arm_spe_snapshot_start(struct auxtrace_record *itr) +{ + struct arm_spe_recording *ptr = + container_of(itr, struct arm_spe_recording, itr); + struct evsel *evsel; + int ret = -EINVAL; + + evlist__for_each_entry(ptr->evlist, evsel) { + if (evsel__is_aux_event(evsel)) { + ret = evsel__disable(evsel); + if (ret < 0) + return ret; + } + } + return ret; +} + +static int arm_spe_snapshot_finish(struct auxtrace_record *itr) +{ + struct arm_spe_recording *ptr = + container_of(itr, struct arm_spe_recording, itr); + struct evsel *evsel; + int ret = -EINVAL; + + evlist__for_each_entry(ptr->evlist, evsel) { + if (evsel__is_aux_event(evsel)) { + ret = evsel__enable(evsel); + if (ret < 0) + return ret; + } + } + return ret; +} + +static int arm_spe_alloc_wrapped_array(struct arm_spe_recording *ptr, int idx) +{ + bool *wrapped; + int cnt = ptr->wrapped_cnt, new_cnt, i; + + /* + * No need to allocate, so return early. + */ + if (idx < cnt) + return 0; + + /* + * Make ptr->wrapped as big as idx. + */ + new_cnt = idx + 1; + + /* + * Free'ed in arm_spe_recording_free(). + */ + wrapped = reallocarray(ptr->wrapped, new_cnt, sizeof(bool)); + if (!wrapped) + return -ENOMEM; + + /* + * init new allocated values. + */ + for (i = cnt; i < new_cnt; i++) + wrapped[i] = false; + + ptr->wrapped_cnt = new_cnt; + ptr->wrapped = wrapped; + + return 0; +} + +static bool arm_spe_buffer_has_wrapped(unsigned char *buffer, + size_t buffer_size, u64 head) +{ + u64 i, watermark; + u64 *buf = (u64 *)buffer; + size_t buf_size = buffer_size; + + /* + * Defensively handle the case where head might be continually increasing - if its value is + * equal or greater than the size of the ring buffer, then we can safely determine it has + * wrapped around. Otherwise, continue to detect if head might have wrapped. + */ + if (head >= buffer_size) + return true; + + /* + * We want to look the very last 512 byte (chosen arbitrarily) in the ring buffer. + */ + watermark = buf_size - 512; + + /* + * The value of head is somewhere within the size of the ring buffer. This can be that there + * hasn't been enough data to fill the ring buffer yet or the trace time was so long that + * head has numerically wrapped around. To find we need to check if we have data at the + * very end of the ring buffer. We can reliably do this because mmap'ed pages are zeroed + * out and there is a fresh mapping with every new session. + */ + + /* + * head is less than 512 byte from the end of the ring buffer. + */ + if (head > watermark) + watermark = head; + + /* + * Speed things up by using 64 bit transactions (see "u64 *buf" above) + */ + watermark /= sizeof(u64); + buf_size /= sizeof(u64); + + /* + * If we find trace data at the end of the ring buffer, head has been there and has + * numerically wrapped around at least once. + */ + for (i = watermark; i < buf_size; i++) + if (buf[i]) + return true; + + return false; +} + +static int arm_spe_find_snapshot(struct auxtrace_record *itr, int idx, + struct auxtrace_mmap *mm, unsigned char *data, + u64 *head, u64 *old) +{ + int err; + bool wrapped; + struct arm_spe_recording *ptr = + container_of(itr, struct arm_spe_recording, itr); + + /* + * Allocate memory to keep track of wrapping if this is the first + * time we deal with this *mm. + */ + if (idx >= ptr->wrapped_cnt) { + err = arm_spe_alloc_wrapped_array(ptr, idx); + if (err) + return err; + } + + /* + * Check to see if *head has wrapped around. If it hasn't only the + * amount of data between *head and *old is snapshot'ed to avoid + * bloating the perf.data file with zeros. But as soon as *head has + * wrapped around the entire size of the AUX ring buffer it taken. + */ + wrapped = ptr->wrapped[idx]; + if (!wrapped && arm_spe_buffer_has_wrapped(data, mm->len, *head)) { + wrapped = true; + ptr->wrapped[idx] = true; + } + + pr_debug3("%s: mmap index %d old head %zu new head %zu size %zu\n", + __func__, idx, (size_t)*old, (size_t)*head, mm->len); + + /* + * No wrap has occurred, we can just use *head and *old. + */ + if (!wrapped) + return 0; + + /* + * *head has wrapped around - adjust *head and *old to pickup the + * entire content of the AUX buffer. + */ + if (*head >= mm->len) { + *old = *head - mm->len; + } else { + *head += mm->len; + *old = *head - mm->len; + } + + return 0; +} + +static u64 arm_spe_reference(struct auxtrace_record *itr __maybe_unused) +{ + struct timespec ts; + + clock_gettime(CLOCK_MONOTONIC_RAW, &ts); + + return ts.tv_sec ^ ts.tv_nsec; +} + +static void arm_spe_recording_free(struct auxtrace_record *itr) +{ + struct arm_spe_recording *sper = + container_of(itr, struct arm_spe_recording, itr); + + zfree(&sper->wrapped); + free(sper); +} + +struct auxtrace_record *arm_spe_recording_init(int *err, + struct perf_pmu *arm_spe_pmu) +{ + struct arm_spe_recording *sper; + + if (!arm_spe_pmu) { + *err = -ENODEV; + return NULL; + } + + sper = zalloc(sizeof(struct arm_spe_recording)); + if (!sper) { + *err = -ENOMEM; + return NULL; + } + + sper->arm_spe_pmu = arm_spe_pmu; + sper->itr.snapshot_start = arm_spe_snapshot_start; + sper->itr.snapshot_finish = arm_spe_snapshot_finish; + sper->itr.find_snapshot = arm_spe_find_snapshot; + sper->itr.parse_snapshot_options = arm_spe_parse_snapshot_options; + sper->itr.recording_options = arm_spe_recording_options; + sper->itr.info_priv_size = arm_spe_info_priv_size; + sper->itr.info_fill = arm_spe_info_fill; + sper->itr.free = arm_spe_recording_free; + sper->itr.reference = arm_spe_reference; + sper->itr.read_finish = auxtrace_record__read_finish; + sper->itr.alignment = 0; + + *err = 0; + return &sper->itr; +} + +void +arm_spe_pmu_default_config(const struct perf_pmu *arm_spe_pmu, struct perf_event_attr *attr) +{ + attr->sample_period = arm_spe_pmu__sample_period(arm_spe_pmu); +} diff --git a/tools/perf/arch/arm64/util/header.c b/tools/perf/arch/arm64/util/header.c new file mode 100644 index 000000000..95e71c4f6 --- /dev/null +++ b/tools/perf/arch/arm64/util/header.c @@ -0,0 +1,125 @@ +#include <linux/bits.h> +#include <linux/bitfield.h> +#include <stdio.h> +#include <stdlib.h> +#include <perf/cpumap.h> +#include <api/fs/fs.h> +#include <errno.h> +#include "debug.h" +#include "header.h" + +#define MIDR "/regs/identification/midr_el1" +#define MIDR_SIZE 19 +#define MIDR_REVISION_MASK GENMASK(3, 0) +#define MIDR_VARIANT_MASK GENMASK(23, 20) + +static int _get_cpuid(char *buf, size_t sz, struct perf_cpu cpu) +{ + char path[PATH_MAX]; + FILE *file; + const char *sysfs = sysfs__mountpoint(); + + assert(cpu.cpu != -1); + if (!sysfs || sz < MIDR_SIZE) + return EINVAL; + + scnprintf(path, PATH_MAX, "%s/devices/system/cpu/cpu%d" MIDR, sysfs, cpu.cpu); + + file = fopen(path, "r"); + if (!file) { + pr_debug("fopen failed for file %s\n", path); + return EINVAL; + } + + if (!fgets(buf, MIDR_SIZE, file)) { + pr_debug("Failed to read file %s\n", path); + fclose(file); + return EINVAL; + } + fclose(file); + return 0; +} + +int get_cpuid(char *buf, size_t sz, struct perf_cpu cpu) +{ + struct perf_cpu_map *cpus; + unsigned int idx; + + if (cpu.cpu != -1) + return _get_cpuid(buf, sz, cpu); + + cpus = perf_cpu_map__new_online_cpus(); + if (!cpus) + return EINVAL; + + perf_cpu_map__for_each_cpu(cpu, idx, cpus) { + int ret = _get_cpuid(buf, sz, cpu); + + if (ret == 0) + return 0; + } + return EINVAL; +} + +char *get_cpuid_str(struct perf_cpu cpu) +{ + char *buf = malloc(MIDR_SIZE); + int res; + + if (!buf) + return NULL; + + /* read midr from list of cpus mapped to this pmu */ + res = get_cpuid(buf, MIDR_SIZE, cpu); + if (res) { + pr_err("failed to get cpuid string for CPU %d\n", cpu.cpu); + free(buf); + buf = NULL; + } + + return buf; +} + +/* + * Return 0 if idstr is a higher or equal to version of the same part as + * mapcpuid. Therefore, if mapcpuid has 0 for revision and variant then any + * version of idstr will match as long as it's the same CPU type. + * + * Return 1 if the CPU type is different or the version of idstr is lower. + */ +int strcmp_cpuid_str(const char *mapcpuid, const char *idstr) +{ + u64 map_id = strtoull(mapcpuid, NULL, 16); + char map_id_variant = FIELD_GET(MIDR_VARIANT_MASK, map_id); + char map_id_revision = FIELD_GET(MIDR_REVISION_MASK, map_id); + u64 id = strtoull(idstr, NULL, 16); + char id_variant = FIELD_GET(MIDR_VARIANT_MASK, id); + char id_revision = FIELD_GET(MIDR_REVISION_MASK, id); + u64 id_fields = ~(MIDR_VARIANT_MASK | MIDR_REVISION_MASK); + + /* Compare without version first */ + if ((map_id & id_fields) != (id & id_fields)) + return 1; + + /* + * ID matches, now compare version. + * + * Arm revisions (like r0p0) are compared here like two digit semver + * values eg. 1.3 < 2.0 < 2.1 < 2.2. + * + * r = high value = 'Variant' field in MIDR + * p = low value = 'Revision' field in MIDR + * + */ + if (id_variant > map_id_variant) + return 0; + + if (id_variant == map_id_variant && id_revision >= map_id_revision) + return 0; + + /* + * variant is less than mapfile variant or variants are the same but + * the revision doesn't match. Return no match. + */ + return 1; +} diff --git a/tools/perf/arch/arm64/util/hisi-ptt.c b/tools/perf/arch/arm64/util/hisi-ptt.c new file mode 100644 index 000000000..fe457fd58 --- /dev/null +++ b/tools/perf/arch/arm64/util/hisi-ptt.c @@ -0,0 +1,188 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * HiSilicon PCIe Trace and Tuning (PTT) support + * Copyright (c) 2022 HiSilicon Technologies Co., Ltd. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/bitops.h> +#include <linux/log2.h> +#include <linux/zalloc.h> +#include <errno.h> +#include <time.h> + +#include <internal/lib.h> // page_size +#include "../../../util/auxtrace.h" +#include "../../../util/cpumap.h" +#include "../../../util/debug.h" +#include "../../../util/event.h" +#include "../../../util/evlist.h" +#include "../../../util/evsel.h" +#include "../../../util/hisi-ptt.h" +#include "../../../util/pmu.h" +#include "../../../util/record.h" +#include "../../../util/session.h" +#include "../../../util/tsc.h" + +#define KiB(x) ((x) * 1024) +#define MiB(x) ((x) * 1024 * 1024) + +struct hisi_ptt_recording { + struct auxtrace_record itr; + struct perf_pmu *hisi_ptt_pmu; + struct evlist *evlist; +}; + +static size_t +hisi_ptt_info_priv_size(struct auxtrace_record *itr __maybe_unused, + struct evlist *evlist __maybe_unused) +{ + return HISI_PTT_AUXTRACE_PRIV_SIZE; +} + +static int hisi_ptt_info_fill(struct auxtrace_record *itr, + struct perf_session *session, + struct perf_record_auxtrace_info *auxtrace_info, + size_t priv_size) +{ + struct hisi_ptt_recording *pttr = + container_of(itr, struct hisi_ptt_recording, itr); + struct perf_pmu *hisi_ptt_pmu = pttr->hisi_ptt_pmu; + + if (priv_size != HISI_PTT_AUXTRACE_PRIV_SIZE) + return -EINVAL; + + if (!session->evlist->core.nr_mmaps) + return -EINVAL; + + auxtrace_info->type = PERF_AUXTRACE_HISI_PTT; + auxtrace_info->priv[0] = hisi_ptt_pmu->type; + + return 0; +} + +static int hisi_ptt_set_auxtrace_mmap_page(struct record_opts *opts) +{ + bool privileged = perf_event_paranoid_check(-1); + + if (!opts->full_auxtrace) + return 0; + + if (opts->full_auxtrace && !opts->auxtrace_mmap_pages) { + if (privileged) { + opts->auxtrace_mmap_pages = MiB(16) / page_size; + } else { + opts->auxtrace_mmap_pages = KiB(128) / page_size; + if (opts->mmap_pages == UINT_MAX) + opts->mmap_pages = KiB(256) / page_size; + } + } + + /* Validate auxtrace_mmap_pages */ + if (opts->auxtrace_mmap_pages) { + size_t sz = opts->auxtrace_mmap_pages * (size_t)page_size; + size_t min_sz = KiB(8); + + if (sz < min_sz || !is_power_of_2(sz)) { + pr_err("Invalid mmap size for HISI PTT: must be at least %zuKiB and a power of 2\n", + min_sz / 1024); + return -EINVAL; + } + } + + return 0; +} + +static int hisi_ptt_recording_options(struct auxtrace_record *itr, + struct evlist *evlist, + struct record_opts *opts) +{ + struct hisi_ptt_recording *pttr = + container_of(itr, struct hisi_ptt_recording, itr); + struct perf_pmu *hisi_ptt_pmu = pttr->hisi_ptt_pmu; + struct evsel *evsel, *hisi_ptt_evsel = NULL; + struct evsel *tracking_evsel; + int err; + + pttr->evlist = evlist; + evlist__for_each_entry(evlist, evsel) { + if (evsel->core.attr.type == hisi_ptt_pmu->type) { + if (hisi_ptt_evsel) { + pr_err("There may be only one " HISI_PTT_PMU_NAME "x event\n"); + return -EINVAL; + } + evsel->core.attr.freq = 0; + evsel->core.attr.sample_period = 1; + evsel->needs_auxtrace_mmap = true; + hisi_ptt_evsel = evsel; + opts->full_auxtrace = true; + } + } + + err = hisi_ptt_set_auxtrace_mmap_page(opts); + if (err) + return err; + /* + * To obtain the auxtrace buffer file descriptor, the auxtrace event + * must come first. + */ + evlist__to_front(evlist, hisi_ptt_evsel); + evsel__set_sample_bit(hisi_ptt_evsel, TIME); + + /* Add dummy event to keep tracking */ + err = parse_event(evlist, "dummy:u"); + if (err) + return err; + + tracking_evsel = evlist__last(evlist); + evlist__set_tracking_event(evlist, tracking_evsel); + + tracking_evsel->core.attr.freq = 0; + tracking_evsel->core.attr.sample_period = 1; + evsel__set_sample_bit(tracking_evsel, TIME); + + return 0; +} + +static u64 hisi_ptt_reference(struct auxtrace_record *itr __maybe_unused) +{ + return rdtsc(); +} + +static void hisi_ptt_recording_free(struct auxtrace_record *itr) +{ + struct hisi_ptt_recording *pttr = + container_of(itr, struct hisi_ptt_recording, itr); + + free(pttr); +} + +struct auxtrace_record *hisi_ptt_recording_init(int *err, + struct perf_pmu *hisi_ptt_pmu) +{ + struct hisi_ptt_recording *pttr; + + if (!hisi_ptt_pmu) { + *err = -ENODEV; + return NULL; + } + + pttr = zalloc(sizeof(*pttr)); + if (!pttr) { + *err = -ENOMEM; + return NULL; + } + + pttr->hisi_ptt_pmu = hisi_ptt_pmu; + pttr->itr.recording_options = hisi_ptt_recording_options; + pttr->itr.info_priv_size = hisi_ptt_info_priv_size; + pttr->itr.info_fill = hisi_ptt_info_fill; + pttr->itr.free = hisi_ptt_recording_free; + pttr->itr.reference = hisi_ptt_reference; + pttr->itr.read_finish = auxtrace_record__read_finish; + pttr->itr.alignment = 0; + + *err = 0; + return &pttr->itr; +} diff --git a/tools/perf/arch/arm64/util/mem-events.c b/tools/perf/arch/arm64/util/mem-events.c new file mode 100644 index 000000000..eaf00e060 --- /dev/null +++ b/tools/perf/arch/arm64/util/mem-events.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "util/map_symbol.h" +#include "util/mem-events.h" +#include "mem-events.h" + +#define E(t, n, s, l, a) { .tag = t, .name = n, .event_name = s, .ldlat = l, .aux_event = a } + +struct perf_mem_event perf_mem_events_arm[PERF_MEM_EVENTS__MAX] = { + E("spe-load", "%s/ts_enable=1,pa_enable=1,load_filter=1,min_latency=%u/", NULL, true, 0), + E("spe-store", "%s/ts_enable=1,pa_enable=1,store_filter=1/", NULL, false, 0), + E("spe-ldst", "%s/ts_enable=1,pa_enable=1,load_filter=1,store_filter=1,min_latency=%u/", NULL, true, 0), +}; diff --git a/tools/perf/arch/arm64/util/mem-events.h b/tools/perf/arch/arm64/util/mem-events.h new file mode 100644 index 000000000..5fc50be4b --- /dev/null +++ b/tools/perf/arch/arm64/util/mem-events.h @@ -0,0 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ARM64_MEM_EVENTS_H +#define _ARM64_MEM_EVENTS_H + +extern struct perf_mem_event perf_mem_events_arm[PERF_MEM_EVENTS__MAX]; + +#endif /* _ARM64_MEM_EVENTS_H */ diff --git a/tools/perf/arch/arm64/util/pmu.c b/tools/perf/arch/arm64/util/pmu.c new file mode 100644 index 000000000..895fb0d06 --- /dev/null +++ b/tools/perf/arch/arm64/util/pmu.c @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include "../../../util/pmu.h" +#include "../../../util/pmus.h" +#include "../../../util/tool_pmu.h" +#include <api/fs/fs.h> + +u64 tool_pmu__cpu_slots_per_cycle(void) +{ + char path[PATH_MAX]; + unsigned long long slots = 0; + struct perf_pmu *pmu = perf_pmus__find_core_pmu(); + + if (pmu) { + perf_pmu__pathname_scnprintf(path, sizeof(path), + pmu->name, "caps/slots"); + /* + * The value of slots is not greater than 32 bits, but + * filename__read_int can't read value with 0x prefix, + * so use filename__read_ull instead. + */ + filename__read_ull(path, &slots); + } + + return slots; +} diff --git a/tools/perf/arch/arm64/util/tsc.c b/tools/perf/arch/arm64/util/tsc.c new file mode 100644 index 000000000..cc85bd9e7 --- /dev/null +++ b/tools/perf/arch/arm64/util/tsc.c @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <linux/types.h> + +#include "../../../util/tsc.h" + +u64 rdtsc(void) +{ + u64 val; + + /* + * According to ARM DDI 0487F.c, from Armv8.0 to Armv8.5 inclusive, the + * system counter is at least 56 bits wide; from Armv8.6, the counter + * must be 64 bits wide. So the system counter could be less than 64 + * bits wide and it is attributed with the flag 'cap_user_time_short' + * is true. + */ + asm volatile("mrs %0, cntvct_el0" : "=r" (val)); + + return val; +} |