gpu: nvgpu: 3d.emc bandwidth ratio policy

Modify the 3d.emc policy to use a formula based on bandwidth and
utilization instead of the current sku-dependent policy.

Bug 1364894

Change-Id: Id97f765a48f0aa9f5ebeb0c82bccb22db474a1ae
Signed-off-by: Samuel Russell <samuelr@nvidia.com>
Reviewed-on: http://git-master/r/453586
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c
index 8bdbb106..177e3525 100644
--- a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c
@@ -3688,6 +3688,7 @@ int gk20a_pmu_load_update(struct gk20a *g)
 
         pmu_copy_from_dmem(pmu, pmu->sample_buffer, (u8 *)&_load, 2, 0);
         pmu->load_shadow = _load / 10;
+        pmu->load_avg = (((9*pmu->load_avg) + pmu->load_shadow) / 10);
 
         return 0;
 }