diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2023-09-28 01:48:00 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-10-28 00:43:06 +0300 |
| commit | 82982fdd5133fa7e0b2dfaf746d18d6f29922b82 (patch) | |
| tree | 40e0c20f8cb63a680cce12ebaf14df94c757d673 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | be97d0db5f44c0674480cb79ac6f5b0529b84c76 (diff) | |
| download | linux-82982fdd5133fa7e0b2dfaf746d18d6f29922b82.tar.xz | |
riscv: Deduplicate IRQ stack switching
With CONFIG_IRQ_STACKS, we switch to a separate per-CPU IRQ stack
before calling handle_riscv_irq or __do_softirq. We currently
have duplicate inline assembly snippets for stack switching in
both code paths. Now that we can access per-CPU variables in
assembly, implement call_on_irq_stack in assembly, and use that
instead of redundant inline assembly.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Guo Ren <guoren@kernel.org>
Link: https://lore.kernel.org/r/20230927224757.1154247-10-samitolvanen@google.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions