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| author | Matthew Auld <matthew.auld@intel.com> | 2021-01-26 10:30:19 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-03-24 19:30:35 +0100 |
| commit | a29a22917d4cf14ad4e7a8c4c503629d5a771f06 (patch) | |
| tree | 12c4b8765b23abc8bf0e012620679d3ac2331c0f /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | b3f0c15a8ef16ce402a2a51f98b43b485c2e0c6d (diff) | |
drm/i915/buddy: document the unused header bits
The largest possible order is (63-PAGE_SHIFT), given that our min chunk
size is PAGE_SIZE. With that we should only need at most 6 bits to
represent all possible orders, giving us back 4 bits for other potential
uses. Include a simple selftest to verify this.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20210126103019.177622-1-matthew.auld@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions