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authorAdrian Hunter <adrian.hunter@intel.com>2021-12-02 11:50:25 +0200
committerBorislav Petkov <bp@suse.de>2022-01-23 20:37:46 +0100
commit9dd94df75b30eca03ed2151dd5bbc152a6f19abf (patch)
treeb74521da67d1629fafe08482bfe7aed312088ffa /tools/perf
parent4810dd2c943edd98cd41a12b96745b16b1d6b4f5 (diff)
downloadlinux-9dd94df75b30eca03ed2151dd5bbc152a6f19abf.tar.bz2
x86/insn: Add AMX instructions to the x86 instruction decoder
The x86 instruction decoder is used for both kernel instructions and user space instructions (e.g. uprobes, perf tools Intel PT), so it is good to update it with new instructions. Add AMX instructions to the x86 instruction decoder. Reference: Intel Architecture Instruction Set Extensions and Future Features Programming Reference May 2021 Document Number: 319433-044 Example using perf tools' x86 instruction decoder test: $ INSN='ldtilecfg\|sttilecfg\|tdpbf16ps\|tdpbssd\|' $ INSN+='tdpbsud\|tdpbusd\|'tdpbuud\|tileloadd\|' $ INSN+='tileloaddt1\|tilerelease\|tilestored\|tilezero' $ perf test -v "x86 instruction decoder" |& grep -i $INSN Decoded ok: c4 e2 78 49 04 c8 ldtilecfg (%rax,%rcx,8) Decoded ok: c4 c2 78 49 04 c8 ldtilecfg (%r8,%rcx,8) Decoded ok: c4 e2 79 49 04 c8 sttilecfg (%rax,%rcx,8) Decoded ok: c4 c2 79 49 04 c8 sttilecfg (%r8,%rcx,8) Decoded ok: c4 e2 7a 5c d1 tdpbf16ps %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 7b 5e d1 tdpbssd %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 7a 5e d1 tdpbsud %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 79 5e d1 tdpbusd %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 78 5e d1 tdpbuud %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 7b 4b 0c c8 tileloadd (%rax,%rcx,8),%tmm1 Decoded ok: c4 c2 7b 4b 14 c8 tileloadd (%r8,%rcx,8),%tmm2 Decoded ok: c4 e2 79 4b 0c c8 tileloaddt1 (%rax,%rcx,8),%tmm1 Decoded ok: c4 c2 79 4b 14 c8 tileloaddt1 (%r8,%rcx,8),%tmm2 Decoded ok: c4 e2 78 49 c0 tilerelease Decoded ok: c4 e2 7a 4b 0c c8 tilestored %tmm1,(%rax,%rcx,8) Decoded ok: c4 c2 7a 4b 14 c8 tilestored %tmm2,(%r8,%rcx,8) Decoded ok: c4 e2 7b 49 c0 tilezero %tmm0 Decoded ok: c4 e2 7b 49 f8 tilezero %tmm7 Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20211202095029.2165714-3-adrian.hunter@intel.com
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