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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-18 17:17:14 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-08-18 22:36:59 +0100 |
| commit | d6a4ead7a38666b9acdb098012a178c4c4950eca (patch) | |
| tree | 08d6739686d1e032d8586ac081561df0cddf0cd7 /scripts/stackusage | |
| parent | drm/i915/cmdparser: Only cache the dst vmap (diff) | |
| download | linux-d6a4ead7a38666b9acdb098012a178c4c4950eca.tar.gz linux-d6a4ead7a38666b9acdb098012a178c4c4950eca.zip | |
drm/i915/cmdparser: Improve hash function
The existing code's hashfunction is very suboptimal (most 3D commands
use the same bucket degrading the hash to a long list). The code even
acknowledge that the issue was known and the fix simple:
/*
* If we attempt to generate a perfect hash, we should be able to look at bits
* 31:29 of a command from a batch buffer and use the full mask for that
* client. The existing INSTR_CLIENT_MASK/SHIFT defines can be used for this.
*/
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-35-chris@chris-wilson.co.uk
Diffstat (limited to 'scripts/stackusage')
0 files changed, 0 insertions, 0 deletions