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Date: Thu, 3 Sep 2015 16:11:15 +0000
From: 平松雅巳 / HIRAMATU，MASAMI
<masami.hiramatsu.pt@...achi.com>
To: "'Adrian Hunter'" <adrian.hunter@...el.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Jiri Olsa <jolsa@...hat.com>,
Andy Lutomirski <luto@...capital.net>,
Denys Vlasenko <dvlasenk@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...nel.org>,
Dave Hansen <dave.hansen@...ux.intel.com>,
Qiaowei Ren <qiaowei.ren@...el.com>,
"H. Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>
Subject: RE: [PATCH V2 5/7] x86/insn: perf tools: Add new memory instructions
> From: Adrian Hunter [mailto:adrian.hunter@...el.com]
sn: perf tools: Add new memory instructions
>
> Intel Architecture Instruction Set Extensions Programing
> Reference (Oct 2014) describes 3 new memory instructions,
> namely clflushopt, clwb and pcommit. Add them to the op
> code map and the perf tools new instructions test. e.g.
>
> $ tools/perf/perf test "x86 ins"
> 39: Test x86 instruction decoder - new instructions : Ok
>
> Or to see the details:
>
> $ tools/perf/perf test -v "x86 ins"
>
OK, I've checked that on the reference.
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Thanks!
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
> ---
> arch/x86/lib/x86-opcode-map.txt | 4 +-
> tools/perf/tests/insn-x86-dat-32.c | 22 +++++++++++
> tools/perf/tests/insn-x86-dat-64.c | 34 ++++++++++++++++
> tools/perf/tests/insn-x86-dat-src.c | 46 ++++++++++++++++++++++
> .../perf/util/intel-pt-decoder/x86-opcode-map.txt | 4 +-
> 5 files changed, 106 insertions(+), 4 deletions(-)
>
> diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt
> index 25dad388b371..f4f0451a301e 100644
> --- a/arch/x86/lib/x86-opcode-map.txt
> +++ b/arch/x86/lib/x86-opcode-map.txt
> @@ -943,8 +943,8 @@ GrpTable: Grp15
> 3: vstmxcsr Md (v1) | WRGSBASE Ry (F3),(11B)
> 4: XSAVE
> 5: XRSTOR | lfence (11B)
> -6: XSAVEOPT | mfence (11B)
> -7: clflush | sfence (11B)
> +6: XSAVEOPT | clwb (66) | mfence (11B)
> +7: clflush | clflushopt (66) | sfence (11B) | pcommit (66),(11B)
> EndTable
>
> GrpTable: Grp16
> diff --git a/tools/perf/tests/insn-x86-dat-32.c b/tools/perf/tests/insn-x86-dat-32.c
> index 83f5078e74e1..4b09b7e130a0 100644
> --- a/tools/perf/tests/insn-x86-dat-32.c
> +++ b/tools/perf/tests/insn-x86-dat-32.c
> @@ -616,3 +616,25 @@
> "0f 38 cd 84 08 78 56 34 12 \tsha256msg2 0x12345678(%eax,%ecx,1),%xmm0",},
> {{0x0f, 0x38, 0xcd, 0x84, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "",
> "0f 38 cd 84 c8 78 56 34 12 \tsha256msg2 0x12345678(%eax,%ecx,8),%xmm0",},
> +{{0x66, 0x0f, 0xae, 0x38, }, 4, 0, "", "",
> +"66 0f ae 38 \tclflushopt (%eax)",},
> +{{0x66, 0x0f, 0xae, 0x3d, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "",
> +"66 0f ae 3d 78 56 34 12 \tclflushopt 0x12345678",},
> +{{0x66, 0x0f, 0xae, 0xbc, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "",
> +"66 0f ae bc c8 78 56 34 12 \tclflushopt 0x12345678(%eax,%ecx,8)",},
> +{{0x0f, 0xae, 0x38, }, 3, 0, "", "",
> +"0f ae 38 \tclflush (%eax)",},
> +{{0x0f, 0xae, 0xf8, }, 3, 0, "", "",
> +"0f ae f8 \tsfence ",},
> +{{0x66, 0x0f, 0xae, 0x30, }, 4, 0, "", "",
> +"66 0f ae 30 \tclwb (%eax)",},
> +{{0x66, 0x0f, 0xae, 0x35, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "",
> +"66 0f ae 35 78 56 34 12 \tclwb 0x12345678",},
> +{{0x66, 0x0f, 0xae, 0xb4, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "",
> +"66 0f ae b4 c8 78 56 34 12 \tclwb 0x12345678(%eax,%ecx,8)",},
> +{{0x0f, 0xae, 0x30, }, 3, 0, "", "",
> +"0f ae 30 \txsaveopt (%eax)",},
> +{{0x0f, 0xae, 0xf0, }, 3, 0, "", "",
> +"0f ae f0 \tmfence ",},
> +{{0x66, 0x0f, 0xae, 0xf8, }, 4, 0, "", "",
> +"66 0f ae f8 \tpcommit ",},
> diff --git a/tools/perf/tests/insn-x86-dat-64.c b/tools/perf/tests/insn-x86-dat-64.c
> index 13f008588590..5da235a4414f 100644
> --- a/tools/perf/tests/insn-x86-dat-64.c
> +++ b/tools/perf/tests/insn-x86-dat-64.c
> @@ -702,3 +702,37 @@
> "0f 38 cd 84 c8 78 56 34 12 \tsha256msg2 0x12345678(%rax,%rcx,8),%xmm0",},
> {{0x44, 0x0f, 0x38, 0xcd, 0xbc, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 10, 0, "", "",
> "44 0f 38 cd bc c8 78 56 34 12 \tsha256msg2 0x12345678(%rax,%rcx,8),%xmm15",},
> +{{0x66, 0x0f, 0xae, 0x38, }, 4, 0, "", "",
> +"66 0f ae 38 \tclflushopt (%rax)",},
> +{{0x66, 0x41, 0x0f, 0xae, 0x38, }, 5, 0, "", "",
> +"66 41 0f ae 38 \tclflushopt (%r8)",},
> +{{0x66, 0x0f, 0xae, 0x3c, 0x25, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "",
> +"66 0f ae 3c 25 78 56 34 12 \tclflushopt 0x12345678",},
> +{{0x66, 0x0f, 0xae, 0xbc, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "",
> +"66 0f ae bc c8 78 56 34 12 \tclflushopt 0x12345678(%rax,%rcx,8)",},
> +{{0x66, 0x41, 0x0f, 0xae, 0xbc, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 10, 0, "", "",
> +"66 41 0f ae bc c8 78 56 34 12 \tclflushopt 0x12345678(%r8,%rcx,8)",},
> +{{0x0f, 0xae, 0x38, }, 3, 0, "", "",
> +"0f ae 38 \tclflush (%rax)",},
> +{{0x41, 0x0f, 0xae, 0x38, }, 4, 0, "", "",
> +"41 0f ae 38 \tclflush (%r8)",},
> +{{0x0f, 0xae, 0xf8, }, 3, 0, "", "",
> +"0f ae f8 \tsfence ",},
> +{{0x66, 0x0f, 0xae, 0x30, }, 4, 0, "", "",
> +"66 0f ae 30 \tclwb (%rax)",},
> +{{0x66, 0x41, 0x0f, 0xae, 0x30, }, 5, 0, "", "",
> +"66 41 0f ae 30 \tclwb (%r8)",},
> +{{0x66, 0x0f, 0xae, 0x34, 0x25, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "",
> +"66 0f ae 34 25 78 56 34 12 \tclwb 0x12345678",},
> +{{0x66, 0x0f, 0xae, 0xb4, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 9, 0, "", "",
> +"66 0f ae b4 c8 78 56 34 12 \tclwb 0x12345678(%rax,%rcx,8)",},
> +{{0x66, 0x41, 0x0f, 0xae, 0xb4, 0xc8, 0x78, 0x56, 0x34, 0x12, }, 10, 0, "", "",
> +"66 41 0f ae b4 c8 78 56 34 12 \tclwb 0x12345678(%r8,%rcx,8)",},
> +{{0x0f, 0xae, 0x30, }, 3, 0, "", "",
> +"0f ae 30 \txsaveopt (%rax)",},
> +{{0x41, 0x0f, 0xae, 0x30, }, 4, 0, "", "",
> +"41 0f ae 30 \txsaveopt (%r8)",},
> +{{0x0f, 0xae, 0xf0, }, 3, 0, "", "",
> +"0f ae f0 \tmfence ",},
> +{{0x66, 0x0f, 0xae, 0xf8, }, 4, 0, "", "",
> +"66 0f ae f8 \tpcommit ",},
> diff --git a/tools/perf/tests/insn-x86-dat-src.c b/tools/perf/tests/insn-x86-dat-src.c
> index 7d06c9b22070..482637f44245 100644
> --- a/tools/perf/tests/insn-x86-dat-src.c
> +++ b/tools/perf/tests/insn-x86-dat-src.c
> @@ -421,6 +421,30 @@ int main(void)
> asm volatile("sha256msg2 0x12345678(%rax,%rcx,8), %xmm0");
> asm volatile("sha256msg2 0x12345678(%rax,%rcx,8), %xmm15");
>
> + /* clflushopt m8 */
> +
> + asm volatile("clflushopt (%rax)");
> + asm volatile("clflushopt (%r8)");
> + asm volatile("clflushopt (0x12345678)");
> + asm volatile("clflushopt 0x12345678(%rax,%rcx,8)");
> + asm volatile("clflushopt 0x12345678(%r8,%rcx,8)");
> + /* Also check instructions in the same group encoding as clflushopt */
> + asm volatile("clflush (%rax)");
> + asm volatile("clflush (%r8)");
> + asm volatile("sfence");
> +
> + /* clwb m8 */
> +
> + asm volatile("clwb (%rax)");
> + asm volatile("clwb (%r8)");
> + asm volatile("clwb (0x12345678)");
> + asm volatile("clwb 0x12345678(%rax,%rcx,8)");
> + asm volatile("clwb 0x12345678(%r8,%rcx,8)");
> + /* Also check instructions in the same group encoding as clwb */
> + asm volatile("xsaveopt (%rax)");
> + asm volatile("xsaveopt (%r8)");
> + asm volatile("mfence");
> +
> #else /* #ifdef __x86_64__ */
>
> /* bndmk m32, bnd */
> @@ -780,8 +804,30 @@ int main(void)
> asm volatile("sha256msg2 0x12345678(%eax,%ecx,1), %xmm0");
> asm volatile("sha256msg2 0x12345678(%eax,%ecx,8), %xmm0");
>
> + /* clflushopt m8 */
> +
> + asm volatile("clflushopt (%eax)");
> + asm volatile("clflushopt (0x12345678)");
> + asm volatile("clflushopt 0x12345678(%eax,%ecx,8)");
> + /* Also check instructions in the same group encoding as clflushopt */
> + asm volatile("clflush (%eax)");
> + asm volatile("sfence");
> +
> + /* clwb m8 */
> +
> + asm volatile("clwb (%eax)");
> + asm volatile("clwb (0x12345678)");
> + asm volatile("clwb 0x12345678(%eax,%ecx,8)");
> + /* Also check instructions in the same group encoding as clwb */
> + asm volatile("xsaveopt (%eax)");
> + asm volatile("mfence");
> +
> #endif /* #ifndef __x86_64__ */
>
> + /* pcommit */
> +
> + asm volatile("pcommit");
> +
> /* Following line is a marker for the awk script - do not change */
> asm volatile("rdtsc"); /* Stop here */
>
> diff --git a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
> index 25dad388b371..f4f0451a301e 100644
> --- a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
> +++ b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
> @@ -943,8 +943,8 @@ GrpTable: Grp15
> 3: vstmxcsr Md (v1) | WRGSBASE Ry (F3),(11B)
> 4: XSAVE
> 5: XRSTOR | lfence (11B)
> -6: XSAVEOPT | mfence (11B)
> -7: clflush | sfence (11B)
> +6: XSAVEOPT | clwb (66) | mfence (11B)
> +7: clflush | clflushopt (66) | sfence (11B) | pcommit (66),(11B)
> EndTable
>
> GrpTable: Grp16
> --
> 1.9.1
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