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| author | Ashutosh Dixit <ashutosh.dixit@intel.com> | 2023-02-28 07:43:34 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-03-01 19:25:36 +0300 |
| commit | 12e8ed969852c11503216115952c84f7c2f4c6b5 (patch) | |
| tree | 1f4dab73fb9619cb62a240764c302f6c48cc69fa /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 30c35a4ba9cd91e07825da8e2846887cb000114c (diff) | |
| download | linux-12e8ed969852c11503216115952c84f7c2f4c6b5.tar.xz | |
drm/i915/hwmon: Accept writes of value 0 to power1_max_interval
The value shown by power1_max_interval in millisec is essentially:
((1.x * power(2,y)) * 1000) >> 10
Where x and y are read from a HW register. On ATSM, x and y are 0 on
power-up so the value shown is 0.
Writes of 0 to power1_max_interval had previously been disallowed to avoid
computing ilog2(0) but this resulted in the corner-case bug
below. Therefore allow writes of 0 now but special case that write to
x = y = 0.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/7754
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230228044334.3630391-1-ashutosh.dixit@intel.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions