diff options
| author | Davidlohr Bueso <dave@stgolabs.net> | 2026-07-15 12:14:52 -0700 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2026-08-02 10:56:45 +0000 |
| commit | ea434e8fd3a539e9c53285b10d3c7e539e228591 (patch) | |
| tree | fb5137ba5598d182acb94419da2aa6c045e02ec3 /tools/perf/scripts/python | |
| parent | 18ec1f543ae1466fdd437803c64ab7c5e43cc36c (diff) | |
perf/cxlpmu: Fix 64-bit write to 32-bit HDM filter register
The HDM decoder filter configuration register is 32 bits wide, but the
driver programs it with a 64-bit writeq(). The filter value never
exceeds 32 bits, so the upper half of the write is always zero and
lands in the adjacent Filter ID 1 (Channel/Rank/Bank) configuration
register at offset+4.
Fixes: 5d7107c72796 ("perf: CXL Performance Monitoring Unit driver")
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Richard Cheng <icheng@nvidia.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions
