diff options
Diffstat (limited to 'tools/perf/arch')
61 files changed, 188 insertions, 0 deletions
diff --git a/tools/perf/arch/arm/annotate/instructions.c b/tools/perf/arch/arm/annotate/instructions.c index 6dfec7c23696..f64516d5b23e 100644 --- a/tools/perf/arch/arm/annotate/instructions.c +++ b/tools/perf/arch/arm/annotate/instructions.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/compiler.h> #include <sys/types.h> #include <regex.h> diff --git a/tools/perf/arch/arm/include/dwarf-regs-table.h b/tools/perf/arch/arm/include/dwarf-regs-table.h index f298d034c37b..5a45046fab72 100644 --- a/tools/perf/arch/arm/include/dwarf-regs-table.h +++ b/tools/perf/arch/arm/include/dwarf-regs-table.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifdef DEFINE_DWARF_REGSTR_TABLE /* This is included in perf/util/dwarf-regs.c */ diff --git a/tools/perf/arch/arm/include/perf_regs.h b/tools/perf/arch/arm/include/perf_regs.h index f619c9c5a4bf..ed20e0253e25 100644 --- a/tools/perf/arch/arm/include/perf_regs.h +++ b/tools/perf/arch/arm/include/perf_regs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_PERF_REGS_H #define ARCH_PERF_REGS_H diff --git a/tools/perf/arch/arm/tests/dwarf-unwind.c b/tools/perf/arch/arm/tests/dwarf-unwind.c index 62eff847f91c..8cb347760233 100644 --- a/tools/perf/arch/arm/tests/dwarf-unwind.c +++ b/tools/perf/arch/arm/tests/dwarf-unwind.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <string.h> #include "perf_regs.h" #include "thread.h" diff --git a/tools/perf/arch/arm/tests/regs_load.S b/tools/perf/arch/arm/tests/regs_load.S index e09e983946fe..6e2495cc4517 100644 --- a/tools/perf/arch/arm/tests/regs_load.S +++ b/tools/perf/arch/arm/tests/regs_load.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <linux/linkage.h> #define R0 0x00 diff --git a/tools/perf/arch/arm/util/unwind-libdw.c b/tools/perf/arch/arm/util/unwind-libdw.c index bacfa00fca39..36ba4c69c3c5 100644 --- a/tools/perf/arch/arm/util/unwind-libdw.c +++ b/tools/perf/arch/arm/util/unwind-libdw.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <elfutils/libdwfl.h> #include "../../util/unwind-libdw.h" #include "../../util/perf_regs.h" diff --git a/tools/perf/arch/arm/util/unwind-libunwind.c b/tools/perf/arch/arm/util/unwind-libunwind.c index 62c397ed3d97..3a550225dfaf 100644 --- a/tools/perf/arch/arm/util/unwind-libunwind.c +++ b/tools/perf/arch/arm/util/unwind-libunwind.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include <libunwind.h> diff --git a/tools/perf/arch/arm64/Makefile b/tools/perf/arch/arm64/Makefile index eebe1ec9d2ee..91de4860faad 100644 --- a/tools/perf/arch/arm64/Makefile +++ b/tools/perf/arch/arm64/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 ifndef NO_DWARF PERF_HAVE_DWARF_REGS := 1 endif diff --git a/tools/perf/arch/arm64/annotate/instructions.c b/tools/perf/arch/arm64/annotate/instructions.c index a2c32be4132a..6688977e4ac7 100644 --- a/tools/perf/arch/arm64/annotate/instructions.c +++ b/tools/perf/arch/arm64/annotate/instructions.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/compiler.h> #include <sys/types.h> #include <regex.h> diff --git a/tools/perf/arch/arm64/include/dwarf-regs-table.h b/tools/perf/arch/arm64/include/dwarf-regs-table.h index 36e375f5a211..177b2855f797 100644 --- a/tools/perf/arch/arm64/include/dwarf-regs-table.h +++ b/tools/perf/arch/arm64/include/dwarf-regs-table.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifdef DEFINE_DWARF_REGSTR_TABLE /* This is included in perf/util/dwarf-regs.c */ diff --git a/tools/perf/arch/arm64/include/perf_regs.h b/tools/perf/arch/arm64/include/perf_regs.h index 4e5af27e3fbf..baaa5e64a3fb 100644 --- a/tools/perf/arch/arm64/include/perf_regs.h +++ b/tools/perf/arch/arm64/include/perf_regs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_PERF_REGS_H #define ARCH_PERF_REGS_H diff --git a/tools/perf/arch/arm64/tests/dwarf-unwind.c b/tools/perf/arch/arm64/tests/dwarf-unwind.c index cf04a4c91c59..e907f0f4c20c 100644 --- a/tools/perf/arch/arm64/tests/dwarf-unwind.c +++ b/tools/perf/arch/arm64/tests/dwarf-unwind.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <string.h> #include "perf_regs.h" #include "thread.h" diff --git a/tools/perf/arch/arm64/tests/regs_load.S b/tools/perf/arch/arm64/tests/regs_load.S index 025b46e579a6..07042511dca9 100644 --- a/tools/perf/arch/arm64/tests/regs_load.S +++ b/tools/perf/arch/arm64/tests/regs_load.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <linux/linkage.h> .text diff --git a/tools/perf/arch/arm64/util/unwind-libunwind.c b/tools/perf/arch/arm64/util/unwind-libunwind.c index b415dfdbccca..002520d4036b 100644 --- a/tools/perf/arch/arm64/util/unwind-libunwind.c +++ b/tools/perf/arch/arm64/util/unwind-libunwind.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #ifndef REMOTE_UNWIND_LIBUNWIND diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c index 6b40e9f01740..8c0cfeb55f8e 100644 --- a/tools/perf/arch/common.c +++ b/tools/perf/arch/common.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <stdio.h> #include <sys/utsname.h> #include "common.h" diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h index 6b01c736b7d9..a1546509ad24 100644 --- a/tools/perf/arch/common.h +++ b/tools/perf/arch/common.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_PERF_COMMON_H #define ARCH_PERF_COMMON_H diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile index cc3930904d68..42dab7c8f508 100644 --- a/tools/perf/arch/powerpc/Makefile +++ b/tools/perf/arch/powerpc/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 ifndef NO_DWARF PERF_HAVE_DWARF_REGS := 1 endif diff --git a/tools/perf/arch/powerpc/annotate/instructions.c b/tools/perf/arch/powerpc/annotate/instructions.c index b6b0ef5952d0..a3f423c27cae 100644 --- a/tools/perf/arch/powerpc/annotate/instructions.c +++ b/tools/perf/arch/powerpc/annotate/instructions.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/compiler.h> static struct ins_ops *powerpc__associate_instruction_ops(struct arch *arch, const char *name) diff --git a/tools/perf/arch/powerpc/include/arch-tests.h b/tools/perf/arch/powerpc/include/arch-tests.h index 84d8dedef2ed..1c7be75cbc78 100644 --- a/tools/perf/arch/powerpc/include/arch-tests.h +++ b/tools/perf/arch/powerpc/include/arch-tests.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_TESTS_H #define ARCH_TESTS_H diff --git a/tools/perf/arch/powerpc/include/dwarf-regs-table.h b/tools/perf/arch/powerpc/include/dwarf-regs-table.h index db4730f5585c..66dc015a733d 100644 --- a/tools/perf/arch/powerpc/include/dwarf-regs-table.h +++ b/tools/perf/arch/powerpc/include/dwarf-regs-table.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifdef DEFINE_DWARF_REGSTR_TABLE /* This is included in perf/util/dwarf-regs.c */ diff --git a/tools/perf/arch/powerpc/include/perf_regs.h b/tools/perf/arch/powerpc/include/perf_regs.h index c12f4e804f66..00e37b106913 100644 --- a/tools/perf/arch/powerpc/include/perf_regs.h +++ b/tools/perf/arch/powerpc/include/perf_regs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_PERF_REGS_H #define ARCH_PERF_REGS_H diff --git a/tools/perf/arch/powerpc/tests/arch-tests.c b/tools/perf/arch/powerpc/tests/arch-tests.c index e24f46241f40..8c3fbd4af817 100644 --- a/tools/perf/arch/powerpc/tests/arch-tests.c +++ b/tools/perf/arch/powerpc/tests/arch-tests.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <string.h> #include "tests/tests.h" #include "arch-tests.h" diff --git a/tools/perf/arch/powerpc/tests/dwarf-unwind.c b/tools/perf/arch/powerpc/tests/dwarf-unwind.c index 0bac3137ccbd..30cbbd6d5be0 100644 --- a/tools/perf/arch/powerpc/tests/dwarf-unwind.c +++ b/tools/perf/arch/powerpc/tests/dwarf-unwind.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <string.h> #include "perf_regs.h" #include "thread.h" diff --git a/tools/perf/arch/powerpc/tests/regs_load.S b/tools/perf/arch/powerpc/tests/regs_load.S index d76c9a32f327..36a20b0033f9 100644 --- a/tools/perf/arch/powerpc/tests/regs_load.S +++ b/tools/perf/arch/powerpc/tests/regs_load.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <linux/linkage.h> /* Offset is based on macros from arch/powerpc/include/uapi/asm/ptrace.h. */ diff --git a/tools/perf/arch/powerpc/util/book3s_hcalls.h b/tools/perf/arch/powerpc/util/book3s_hcalls.h index 0dd6b7f2d44f..54cfa0530e86 100644 --- a/tools/perf/arch/powerpc/util/book3s_hcalls.h +++ b/tools/perf/arch/powerpc/util/book3s_hcalls.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_PERF_BOOK3S_HV_HCALLS_H #define ARCH_PERF_BOOK3S_HV_HCALLS_H diff --git a/tools/perf/arch/powerpc/util/book3s_hv_exits.h b/tools/perf/arch/powerpc/util/book3s_hv_exits.h index e68ba2da8970..853b95d1e139 100644 --- a/tools/perf/arch/powerpc/util/book3s_hv_exits.h +++ b/tools/perf/arch/powerpc/util/book3s_hv_exits.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_PERF_BOOK3S_HV_EXITS_H #define ARCH_PERF_BOOK3S_HV_EXITS_H diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c index 9aaa6f5a9347..7a4cf80c207a 100644 --- a/tools/perf/arch/powerpc/util/header.c +++ b/tools/perf/arch/powerpc/util/header.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <sys/types.h> #include <unistd.h> #include <stdio.h> diff --git a/tools/perf/arch/powerpc/util/kvm-stat.c b/tools/perf/arch/powerpc/util/kvm-stat.c index 249723f0e6a9..596ad6aedaac 100644 --- a/tools/perf/arch/powerpc/util/kvm-stat.c +++ b/tools/perf/arch/powerpc/util/kvm-stat.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include "util/kvm-stat.h" #include "util/parse-events.h" diff --git a/tools/perf/arch/powerpc/util/perf_regs.c b/tools/perf/arch/powerpc/util/perf_regs.c index f860dc411f69..ec50939b0418 100644 --- a/tools/perf/arch/powerpc/util/perf_regs.c +++ b/tools/perf/arch/powerpc/util/perf_regs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include <string.h> #include <regex.h> diff --git a/tools/perf/arch/powerpc/util/unwind-libdw.c b/tools/perf/arch/powerpc/util/unwind-libdw.c index 3a24b3c43273..7a1f05ef2fc0 100644 --- a/tools/perf/arch/powerpc/util/unwind-libdw.c +++ b/tools/perf/arch/powerpc/util/unwind-libdw.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <elfutils/libdwfl.h> #include "../../util/unwind-libdw.h" #include "../../util/perf_regs.h" diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c index b8676ccbed76..e0e466c650df 100644 --- a/tools/perf/arch/s390/annotate/instructions.c +++ b/tools/perf/arch/s390/annotate/instructions.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/compiler.h> static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name) diff --git a/tools/perf/arch/s390/include/dwarf-regs-table.h b/tools/perf/arch/s390/include/dwarf-regs-table.h index 9da74a933bd6..792d4c277225 100644 --- a/tools/perf/arch/s390/include/dwarf-regs-table.h +++ b/tools/perf/arch/s390/include/dwarf-regs-table.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifdef DEFINE_DWARF_REGSTR_TABLE /* This is included in perf/util/dwarf-regs.c */ diff --git a/tools/perf/arch/s390/util/dwarf-regs.c b/tools/perf/arch/s390/util/dwarf-regs.c index 0469df02ee62..0dff5b2ed1e5 100644 --- a/tools/perf/arch/s390/util/dwarf-regs.c +++ b/tools/perf/arch/s390/util/dwarf-regs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Mapping of DWARF debug register numbers into register names. * diff --git a/tools/perf/arch/s390/util/machine.c b/tools/perf/arch/s390/util/machine.c index b9a95a1a8e69..0b2054007314 100644 --- a/tools/perf/arch/s390/util/machine.c +++ b/tools/perf/arch/s390/util/machine.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <unistd.h> #include <stdio.h> #include <string.h> diff --git a/tools/perf/arch/sh/include/dwarf-regs-table.h b/tools/perf/arch/sh/include/dwarf-regs-table.h index 3a2deaf3dab4..900e69619970 100644 --- a/tools/perf/arch/sh/include/dwarf-regs-table.h +++ b/tools/perf/arch/sh/include/dwarf-regs-table.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifdef DEFINE_DWARF_REGSTR_TABLE /* This is included in perf/util/dwarf-regs.c */ diff --git a/tools/perf/arch/sparc/include/dwarf-regs-table.h b/tools/perf/arch/sparc/include/dwarf-regs-table.h index 12c07619002c..35ede84a6b0d 100644 --- a/tools/perf/arch/sparc/include/dwarf-regs-table.h +++ b/tools/perf/arch/sparc/include/dwarf-regs-table.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifdef DEFINE_DWARF_REGSTR_TABLE /* This is included in perf/util/dwarf-regs.c */ diff --git a/tools/perf/arch/x86/Makefile b/tools/perf/arch/x86/Makefile index 9a628a24c5c9..d74eaa7aa927 100644 --- a/tools/perf/arch/x86/Makefile +++ b/tools/perf/arch/x86/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 ifndef NO_DWARF PERF_HAVE_DWARF_REGS := 1 endif diff --git a/tools/perf/arch/x86/annotate/instructions.c b/tools/perf/arch/x86/annotate/instructions.c index 563cd4564041..5bd1ba8c0282 100644 --- a/tools/perf/arch/x86/annotate/instructions.c +++ b/tools/perf/arch/x86/annotate/instructions.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 static struct ins x86__instructions[] = { { .name = "add", .ops = &mov_ops, }, { .name = "addl", .ops = &mov_ops, }, diff --git a/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh b/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh index 49a18b9ad9cf..029a72c20b19 100755 --- a/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh +++ b/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh @@ -1,4 +1,5 @@ #!/bin/sh +# SPDX-License-Identifier: GPL-2.0 in="$1" arch="$2" diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h index 01ad4208bcdf..c1bd979b957b 100644 --- a/tools/perf/arch/x86/include/arch-tests.h +++ b/tools/perf/arch/x86/include/arch-tests.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_TESTS_H #define ARCH_TESTS_H diff --git a/tools/perf/arch/x86/include/dwarf-regs-table.h b/tools/perf/arch/x86/include/dwarf-regs-table.h index 9b5e5cbb4209..b9bd5dc9d4c0 100644 --- a/tools/perf/arch/x86/include/dwarf-regs-table.h +++ b/tools/perf/arch/x86/include/dwarf-regs-table.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifdef DEFINE_DWARF_REGSTR_TABLE /* This is included in perf/util/dwarf-regs.c */ diff --git a/tools/perf/arch/x86/include/perf_regs.h b/tools/perf/arch/x86/include/perf_regs.h index 7df517acfef8..7f6d538f8a89 100644 --- a/tools/perf/arch/x86/include/perf_regs.h +++ b/tools/perf/arch/x86/include/perf_regs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef ARCH_PERF_REGS_H #define ARCH_PERF_REGS_H diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c index 271c0a0f95d7..cc1802ff5410 100644 --- a/tools/perf/arch/x86/tests/arch-tests.c +++ b/tools/perf/arch/x86/tests/arch-tests.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <string.h> #include "tests/tests.h" #include "arch-tests.h" diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c index 7f209ce827bf..95036c7a59e8 100644 --- a/tools/perf/arch/x86/tests/dwarf-unwind.c +++ b/tools/perf/arch/x86/tests/dwarf-unwind.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <string.h> #include "perf_regs.h" #include "thread.h" diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-32.c b/tools/perf/arch/x86/tests/insn-x86-dat-32.c index 3cbf6fad169f..fab3c6de73fa 100644 --- a/tools/perf/arch/x86/tests/insn-x86-dat-32.c +++ b/tools/perf/arch/x86/tests/insn-x86-dat-32.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Generated by gen-insn-x86-dat.sh and gen-insn-x86-dat.awk * from insn-x86-dat-src.c for inclusion by insn-x86.c diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-64.c b/tools/perf/arch/x86/tests/insn-x86-dat-64.c index aa512fa944dd..c57f34603b9b 100644 --- a/tools/perf/arch/x86/tests/insn-x86-dat-64.c +++ b/tools/perf/arch/x86/tests/insn-x86-dat-64.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Generated by gen-insn-x86-dat.sh and gen-insn-x86-dat.awk * from insn-x86-dat-src.c for inclusion by insn-x86.c diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-src.c b/tools/perf/arch/x86/tests/insn-x86-dat-src.c index 6cdb65d25b79..891415b10984 100644 --- a/tools/perf/arch/x86/tests/insn-x86-dat-src.c +++ b/tools/perf/arch/x86/tests/insn-x86-dat-src.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file contains instructions for testing by the test titled: * diff --git a/tools/perf/arch/x86/tests/insn-x86.c b/tools/perf/arch/x86/tests/insn-x86.c index b3860586a0c2..a5d24ae5810d 100644 --- a/tools/perf/arch/x86/tests/insn-x86.c +++ b/tools/perf/arch/x86/tests/insn-x86.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/types.h> #include "debug.h" diff --git a/tools/perf/arch/x86/tests/intel-cqm.c b/tools/perf/arch/x86/tests/intel-cqm.c new file mode 100644 index 000000000000..90a4a8c58a62 --- /dev/null +++ b/tools/perf/arch/x86/tests/intel-cqm.c @@ -0,0 +1,128 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "tests/tests.h" +#include "perf.h" +#include "cloexec.h" +#include "debug.h" +#include "evlist.h" +#include "evsel.h" +#include "arch-tests.h" + +#include <signal.h> +#include <sys/mman.h> +#include <sys/wait.h> +#include <errno.h> +#include <string.h> + +static pid_t spawn(void) +{ + pid_t pid; + + pid = fork(); + if (pid) + return pid; + + while(1) + sleep(5); + return 0; +} + +/* + * Create an event group that contains both a sampled hardware + * (cpu-cycles) and software (intel_cqm/llc_occupancy/) event. We then + * wait for the hardware perf counter to overflow and generate a PMI, + * which triggers an event read for both of the events in the group. + * + * Since reading Intel CQM event counters requires sending SMP IPIs, the + * CQM pmu needs to handle the above situation gracefully, and return + * the last read counter value to avoid triggering a WARN_ON_ONCE() in + * smp_call_function_many() caused by sending IPIs from NMI context. + */ +int test__intel_cqm_count_nmi_context(struct test *test __maybe_unused, int subtest __maybe_unused) +{ + struct perf_evlist *evlist = NULL; + struct perf_evsel *evsel = NULL; + struct perf_event_attr pe; + int i, fd[2], flag, ret; + size_t mmap_len; + void *event; + pid_t pid; + int err = TEST_FAIL; + + flag = perf_event_open_cloexec_flag(); + + evlist = perf_evlist__new(); + if (!evlist) { + pr_debug("perf_evlist__new failed\n"); + return TEST_FAIL; + } + + ret = parse_events(evlist, "intel_cqm/llc_occupancy/", NULL); + if (ret) { + pr_debug("parse_events failed, is \"intel_cqm/llc_occupancy/\" available?\n"); + err = TEST_SKIP; + goto out; + } + + evsel = perf_evlist__first(evlist); + if (!evsel) { + pr_debug("perf_evlist__first failed\n"); + goto out; + } + + memset(&pe, 0, sizeof(pe)); + pe.size = sizeof(pe); + + pe.type = PERF_TYPE_HARDWARE; + pe.config = PERF_COUNT_HW_CPU_CYCLES; + pe.read_format = PERF_FORMAT_GROUP; + + pe.sample_period = 128; + pe.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_READ; + + pid = spawn(); + + fd[0] = sys_perf_event_open(&pe, pid, -1, -1, flag); + if (fd[0] < 0) { + pr_debug("failed to open event\n"); + goto out; + } + + memset(&pe, 0, sizeof(pe)); + pe.size = sizeof(pe); + + pe.type = evsel->attr.type; + pe.config = evsel->attr.config; + + fd[1] = sys_perf_event_open(&pe, pid, -1, fd[0], flag); + if (fd[1] < 0) { + pr_debug("failed to open event\n"); + goto out; + } + + /* + * Pick a power-of-two number of pages + 1 for the meta-data + * page (struct perf_event_mmap_page). See tools/perf/design.txt. + */ + mmap_len = page_size * 65; + + event = mmap(NULL, mmap_len, PROT_READ, MAP_SHARED, fd[0], 0); + if (event == (void *)(-1)) { + pr_debug("failed to mmap %d\n", errno); + goto out; + } + + sleep(1); + + err = TEST_OK; + + munmap(event, mmap_len); + + for (i = 0; i < 2; i++) + close(fd[i]); + + kill(pid, SIGKILL); + wait(NULL); +out: + perf_evlist__delete(evlist); + return err; +} diff --git a/tools/perf/arch/x86/tests/perf-time-to-tsc.c b/tools/perf/arch/x86/tests/perf-time-to-tsc.c index 5dd7efb192ce..b59678e8c1e2 100644 --- a/tools/perf/arch/x86/tests/perf-time-to-tsc.c +++ b/tools/perf/arch/x86/tests/perf-time-to-tsc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include <inttypes.h> #include <stdio.h> diff --git a/tools/perf/arch/x86/tests/rdpmc.c b/tools/perf/arch/x86/tests/rdpmc.c index 17fec30a0b31..7a11f02d6c6c 100644 --- a/tools/perf/arch/x86/tests/rdpmc.c +++ b/tools/perf/arch/x86/tests/rdpmc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include <unistd.h> #include <stdlib.h> diff --git a/tools/perf/arch/x86/tests/regs_load.S b/tools/perf/arch/x86/tests/regs_load.S index 60875d5c556c..bbe5a0d16e51 100644 --- a/tools/perf/arch/x86/tests/regs_load.S +++ b/tools/perf/arch/x86/tests/regs_load.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <linux/linkage.h> #define AX 0 diff --git a/tools/perf/arch/x86/util/group.c b/tools/perf/arch/x86/util/group.c index 37f92aa39a5d..e2f8034b8973 100644 --- a/tools/perf/arch/x86/util/group.c +++ b/tools/perf/arch/x86/util/group.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <stdio.h> #include "api/fs/fs.h" #include "util/group.h" diff --git a/tools/perf/arch/x86/util/header.c b/tools/perf/arch/x86/util/header.c index a74a48db26f5..33027c5e6f92 100644 --- a/tools/perf/arch/x86/util/header.c +++ b/tools/perf/arch/x86/util/header.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <sys/types.h> #include <unistd.h> #include <stdio.h> diff --git a/tools/perf/arch/x86/util/kvm-stat.c b/tools/perf/arch/x86/util/kvm-stat.c index bf817beca0a8..b32409a0e546 100644 --- a/tools/perf/arch/x86/util/kvm-stat.c +++ b/tools/perf/arch/x86/util/kvm-stat.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include "../../util/kvm-stat.h" #include <asm/svm.h> diff --git a/tools/perf/arch/x86/util/perf_regs.c b/tools/perf/arch/x86/util/perf_regs.c index f95edebfb716..4b2caf6d48e7 100644 --- a/tools/perf/arch/x86/util/perf_regs.c +++ b/tools/perf/arch/x86/util/perf_regs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <errno.h> #include <string.h> #include <regex.h> diff --git a/tools/perf/arch/x86/util/pmu.c b/tools/perf/arch/x86/util/pmu.c index 79fe07158d00..63a74c32ddc5 100644 --- a/tools/perf/arch/x86/util/pmu.c +++ b/tools/perf/arch/x86/util/pmu.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <string.h> #include <linux/perf_event.h> diff --git a/tools/perf/arch/x86/util/tsc.c b/tools/perf/arch/x86/util/tsc.c index 2e5567c94e09..06bae7023a51 100644 --- a/tools/perf/arch/x86/util/tsc.c +++ b/tools/perf/arch/x86/util/tsc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <stdbool.h> #include <errno.h> diff --git a/tools/perf/arch/x86/util/unwind-libdw.c b/tools/perf/arch/x86/util/unwind-libdw.c index 38dc9bb2a7c9..fda8f4206ee4 100644 --- a/tools/perf/arch/x86/util/unwind-libdw.c +++ b/tools/perf/arch/x86/util/unwind-libdw.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <elfutils/libdwfl.h> #include "../../util/unwind-libdw.h" #include "../../util/perf_regs.h" diff --git a/tools/perf/arch/x86/util/unwind-libunwind.c b/tools/perf/arch/x86/util/unwind-libunwind.c index 4f16661cbdbb..9c917f80c906 100644 --- a/tools/perf/arch/x86/util/unwind-libunwind.c +++ b/tools/perf/arch/x86/util/unwind-libunwind.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #ifndef REMOTE_UNWIND_LIBUNWIND #include <errno.h> diff --git a/tools/perf/arch/xtensa/include/dwarf-regs-table.h b/tools/perf/arch/xtensa/include/dwarf-regs-table.h index aa0444a33fe6..d7c9f1fb4444 100644 --- a/tools/perf/arch/xtensa/include/dwarf-regs-table.h +++ b/tools/perf/arch/xtensa/include/dwarf-regs-table.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifdef DEFINE_DWARF_REGSTR_TABLE /* This is included in perf/util/dwarf-regs.c */ |