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| author | Sachit Kadle <skadle@nvidia.com> | 2016-11-03 23:31:59 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2016-11-17 00:35:22 -0500 |
| commit | 5494e846c78dd0da74635905ead3abe45502375f (patch) | |
| tree | eb680d5dceca18e74a0b84dd83832427d13ae4e8 /drivers/gpu/nvgpu/vgpu/vgpu.h | |
| parent | b5c31a23ca94f21c701680acba10528254523244 (diff) | |
gpu: nvgpu: set clk_rate on frequency change
Currently, in gk20a_scale_target, we set clock frequency
even if it is equivalent to the rate previously requested by
the governor. This change adds a check to bypass this in
case new_frequency == prev_frequency.
These clocking operations result in multiple BPMP calls, and add
significant overhead to submit time. So, we avoid these
operations when possible.
Bug 1795076
Change-Id: I0f180564e54581f0f4add4626c647e0b9a1bbe43
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1247913
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Aaron Huang <aaronh@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/vgpu/vgpu.h')
0 files changed, 0 insertions, 0 deletions