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Date: Wed, 20 Jul 2016 09:35:00 +0900
From: Masami Hiramatsu <mhiramat@...nel.org>
To: Adrian Hunter <adrian.hunter@...el.com>
Cc: linux-kernel@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Jiri Olsa <jolsa@...hat.com>,
Dan Williams <dan.j.williams@...el.com>,
Masami Hiramatsu <mhiramat@...nel.org>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>,
Andy Lutomirski <luto@...capital.net>, X86 ML <x86@...nel.org>
Subject: Re: [PATCH 1/2] x86/insn: perf tools: Fix vcvtph2ps instruction
decoding
On Tue, 19 Jul 2016 15:46:47 +0300
Adrian Hunter <adrian.hunter@...el.com> wrote:
> vcvtph2ps does not have an immediate operand, so remove the erroneous 'Ib'
> from its opcode map entry. Add vcvtph2ps to the perf tools new
> instructions test to verify it.
Hmm, Intel SDM Vol.2D Table A-4 shows vcvtph2ps has Ib (Vol.2C Figure 5-6.
also has same mistake in title), but yes, instruction set reference of VCVTPH2PS
shows that has no immediate. So, I guess OPCODE MAP should be fixed.
Looks good to me:)
Acked-by: Masami Hiramatsu <mhiramat@...nel.org>
Thank you!
>
> Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
> ---
> arch/x86/lib/x86-opcode-map.txt | 2 +-
> tools/perf/arch/x86/tests/insn-x86-dat-32.c | 10 ++++++----
> tools/perf/arch/x86/tests/insn-x86-dat-64.c | 10 ++++++----
> tools/perf/arch/x86/tests/insn-x86-dat-src.c | 4 ++++
> tools/perf/util/intel-pt-decoder/x86-opcode-map.txt | 2 +-
> 5 files changed, 18 insertions(+), 10 deletions(-)
>
> diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt
> index d388de72eaca..28082de46f0d 100644
> --- a/arch/x86/lib/x86-opcode-map.txt
> +++ b/arch/x86/lib/x86-opcode-map.txt
> @@ -629,7 +629,7 @@ AVXcode: 2
> 10: pblendvb Vdq,Wdq (66)
> 11:
> 12:
> -13: vcvtph2ps Vx,Wx,Ib (66),(v)
> +13: vcvtph2ps Vx,Wx (66),(v)
> 14: blendvps Vdq,Wdq (66)
> 15: blendvpd Vdq,Wdq (66)
> 16: vpermps Vqq,Hqq,Wqq (66),(v)
> 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 3b491cfe204e..ca08e6eb988f 100644
> --- a/tools/perf/arch/x86/tests/insn-x86-dat-32.c
> +++ b/tools/perf/arch/x86/tests/insn-x86-dat-32.c
> @@ -6,6 +6,8 @@
>
> {{0x0f, 0x31, }, 2, 0, "", "",
> "0f 31 \trdtsc ",},
> +{{0xc4, 0xe2, 0x7d, 0x13, 0xeb, }, 5, 0, "", "",
> +"c4 e2 7d 13 eb \tvcvtph2ps %xmm3,%ymm5",},
> {{0xf3, 0x0f, 0x1b, 0x00, }, 4, 0, "", "",
> "f3 0f 1b 00 \tbndmk (%eax),%bnd0",},
> {{0xf3, 0x0f, 0x1b, 0x05, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "",
> @@ -309,19 +311,19 @@
> {{0x0f, 0x1b, 0x84, 0x08, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "",
> "0f 1b 84 08 78 56 34 12 \tbndstx %bnd0,0x12345678(%eax,%ecx,1)",},
> {{0xf2, 0xe8, 0xfc, 0xff, 0xff, 0xff, }, 6, 0xfffffffc, "call", "unconditional",
> -"f2 e8 fc ff ff ff \tbnd call 3c3 <main+0x3c3>",},
> +"f2 e8 fc ff ff ff \tbnd call 3c8 <main+0x3c8>",},
> {{0xf2, 0xff, 0x10, }, 3, 0, "call", "indirect",
> "f2 ff 10 \tbnd call *(%eax)",},
> {{0xf2, 0xc3, }, 2, 0, "ret", "indirect",
> "f2 c3 \tbnd ret ",},
> {{0xf2, 0xe9, 0xfc, 0xff, 0xff, 0xff, }, 6, 0xfffffffc, "jmp", "unconditional",
> -"f2 e9 fc ff ff ff \tbnd jmp 3ce <main+0x3ce>",},
> +"f2 e9 fc ff ff ff \tbnd jmp 3d3 <main+0x3d3>",},
> {{0xf2, 0xe9, 0xfc, 0xff, 0xff, 0xff, }, 6, 0xfffffffc, "jmp", "unconditional",
> -"f2 e9 fc ff ff ff \tbnd jmp 3d4 <main+0x3d4>",},
> +"f2 e9 fc ff ff ff \tbnd jmp 3d9 <main+0x3d9>",},
> {{0xf2, 0xff, 0x21, }, 3, 0, "jmp", "indirect",
> "f2 ff 21 \tbnd jmp *(%ecx)",},
> {{0xf2, 0x0f, 0x85, 0xfc, 0xff, 0xff, 0xff, }, 7, 0xfffffffc, "jcc", "conditional",
> -"f2 0f 85 fc ff ff ff \tbnd jne 3de <main+0x3de>",},
> +"f2 0f 85 fc ff ff ff \tbnd jne 3e3 <main+0x3e3>",},
> {{0x0f, 0x3a, 0xcc, 0xc1, 0x00, }, 5, 0, "", "",
> "0f 3a cc c1 00 \tsha1rnds4 $0x0,%xmm1,%xmm0",},
> {{0x0f, 0x3a, 0xcc, 0xd7, 0x91, }, 5, 0, "", "",
> 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 4fe7cce179c4..262d9d25a6fa 100644
> --- a/tools/perf/arch/x86/tests/insn-x86-dat-64.c
> +++ b/tools/perf/arch/x86/tests/insn-x86-dat-64.c
> @@ -6,6 +6,8 @@
>
> {{0x0f, 0x31, }, 2, 0, "", "",
> "0f 31 \trdtsc ",},
> +{{0xc4, 0xe2, 0x7d, 0x13, 0xeb, }, 5, 0, "", "",
> +"c4 e2 7d 13 eb \tvcvtph2ps %xmm3,%ymm5",},
> {{0xf3, 0x0f, 0x1b, 0x00, }, 4, 0, "", "",
> "f3 0f 1b 00 \tbndmk (%rax),%bnd0",},
> {{0xf3, 0x41, 0x0f, 0x1b, 0x00, }, 5, 0, "", "",
> @@ -325,19 +327,19 @@
> {{0x0f, 0x1b, 0x84, 0x08, 0x78, 0x56, 0x34, 0x12, }, 8, 0, "", "",
> "0f 1b 84 08 78 56 34 12 \tbndstx %bnd0,0x12345678(%rax,%rcx,1)",},
> {{0xf2, 0xe8, 0x00, 0x00, 0x00, 0x00, }, 6, 0, "call", "unconditional",
> -"f2 e8 00 00 00 00 \tbnd callq 3f6 <main+0x3f6>",},
> +"f2 e8 00 00 00 00 \tbnd callq 3fb <main+0x3fb>",},
> {{0x67, 0xf2, 0xff, 0x10, }, 4, 0, "call", "indirect",
> "67 f2 ff 10 \tbnd callq *(%eax)",},
> {{0xf2, 0xc3, }, 2, 0, "ret", "indirect",
> "f2 c3 \tbnd retq ",},
> {{0xf2, 0xe9, 0x00, 0x00, 0x00, 0x00, }, 6, 0, "jmp", "unconditional",
> -"f2 e9 00 00 00 00 \tbnd jmpq 402 <main+0x402>",},
> +"f2 e9 00 00 00 00 \tbnd jmpq 407 <main+0x407>",},
> {{0xf2, 0xe9, 0x00, 0x00, 0x00, 0x00, }, 6, 0, "jmp", "unconditional",
> -"f2 e9 00 00 00 00 \tbnd jmpq 408 <main+0x408>",},
> +"f2 e9 00 00 00 00 \tbnd jmpq 40d <main+0x40d>",},
> {{0x67, 0xf2, 0xff, 0x21, }, 4, 0, "jmp", "indirect",
> "67 f2 ff 21 \tbnd jmpq *(%ecx)",},
> {{0xf2, 0x0f, 0x85, 0x00, 0x00, 0x00, 0x00, }, 7, 0, "jcc", "conditional",
> -"f2 0f 85 00 00 00 00 \tbnd jne 413 <main+0x413>",},
> +"f2 0f 85 00 00 00 00 \tbnd jne 418 <main+0x418>",},
> {{0x0f, 0x3a, 0xcc, 0xc1, 0x00, }, 5, 0, "", "",
> "0f 3a cc c1 00 \tsha1rnds4 $0x0,%xmm1,%xmm0",},
> {{0x0f, 0x3a, 0xcc, 0xd7, 0x91, }, 5, 0, "", "",
> 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 41b1b1c62660..3cd677513e9e 100644
> --- a/tools/perf/arch/x86/tests/insn-x86-dat-src.c
> +++ b/tools/perf/arch/x86/tests/insn-x86-dat-src.c
> @@ -19,6 +19,10 @@ int main(void)
> /* Following line is a marker for the awk script - do not change */
> asm volatile("rdtsc"); /* Start here */
>
> + /* Test fix for vcvtph2ps in x86-opcode-map.txt */
> +
> + asm volatile("vcvtph2ps %xmm3,%ymm5");
> +
> #ifdef __x86_64__
>
> /* bndmk m64, bnd */
> 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 d388de72eaca..28082de46f0d 100644
> --- a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
> +++ b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
> @@ -629,7 +629,7 @@ AVXcode: 2
> 10: pblendvb Vdq,Wdq (66)
> 11:
> 12:
> -13: vcvtph2ps Vx,Wx,Ib (66),(v)
> +13: vcvtph2ps Vx,Wx (66),(v)
> 14: blendvps Vdq,Wdq (66)
> 15: blendvpd Vdq,Wdq (66)
> 16: vpermps Vqq,Hqq,Wqq (66),(v)
> --
> 1.9.1
>
--
Masami Hiramatsu <mhiramat@...nel.org>
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