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| author | Puranjay Mohan <puranjay12@gmail.com> | 2023-09-07 23:05:46 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-09-15 17:16:56 -0700 |
| commit | 5097faa559a6097de436bdff4027d036b5493d1a (patch) | |
| tree | fe565681ff56586026d3d1a45eac6b7a330c70eb /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 1cfb7eaebeac9270fcb527f47bbdea34ca3cd5b2 (diff) | |
arm32, bpf: add support for 32-bit signed division
The cpuv4 added a new BPF_SDIV instruction that does signed division.
The encoding is similar to BPF_DIV but BPF_SDIV sets offset=1.
ARM32 already supports 32-bit BPF_DIV which can be easily extended to
support BPF_SDIV as ARM32 has the SDIV instruction. When the CPU is not
ARM-v7, we implement that SDIV/SMOD with the function call similar to
the implementation of DIV/MOD.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20230907230550.1417590-6-puranjay12@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions