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authorPalmer Dabbelt <palmer@rivosinc.com>2024-10-18 22:38:36 +0300
committerPalmer Dabbelt <palmer@rivosinc.com>2024-10-18 22:38:36 +0300
commit18efe86bf266faeecb68fa012983c8c9c9685648 (patch)
treeca50c28abfae54db4255b6058136e28f21279ce0 /tools/perf/scripts/python/exported-sql-viewer.py
parent77270206955db780690dddb32d1a74c587be55ea (diff)
parent40e09ebd791fe6b872df49c4ae859451977e1e64 (diff)
downloadlinux-18efe86bf266faeecb68fa012983c8c9c9685648.tar.xz
Merge patch series "RISC-V: Detect and report speed of unaligned vector accesses"
Charlie Jenkins <charlie@rivosinc.com> says: Adds support for detecting and reporting the speed of unaligned vector accesses on RISC-V CPUs. Adds vec_misaligned_speed key to the hwprobe adds Zicclsm to cpufeature and fixes the check for scalar unaligned emulated all CPUs. The vec_misaligned_speed key keeps the same format as the scalar unaligned access speed key. This set does not emulate unaligned vector accesses on CPUs that do not support them. Only reports if userspace can run them and speed of unaligned vector accesses if supported. * b4-shazam-merge: RISC-V: hwprobe: Document unaligned vector perf key RISC-V: Report vector unaligned access speed hwprobe RISC-V: Detect unaligned vector accesses supported RISC-V: Replace RISCV_MISALIGNED with RISCV_SCALAR_MISALIGNED RISC-V: Scalar unaligned access emulated on hotplug CPUs RISC-V: Check scalar unaligned access on all CPUs Link: https://lore.kernel.org/r/20241017-jesse_unaligned_vector-v10-0-5b33500160f8@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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