diff options
| author | Alex Frid <afrid@nvidia.com> | 2017-05-11 00:35:03 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-05-12 19:09:11 -0400 |
| commit | ab22d66386e3a23e0dfe897bca25e01623f6d61c (patch) | |
| tree | 3e765fd6b2df73889a0e4486853529bf4b49e713 /drivers/gpu/nvgpu | |
| parent | 888fbbda21af9ed9b47527cdc0b853c4397005d0 (diff) | |
gpu: nvgpu: tegra: Fix EMC frequency scaling
Before this commit call to EMC BWMGR in postscale procedure was skipped
when GPU rail is ON (= GPU is running). It should be the other way
around - call should be skipped when GPU is rail-gated.
Bug 200267304
Change-Id: Id4da84b3d0ed0606017cc53a58e2917d486fa13e
Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-on: http://git-master/r/1479769
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu')
| -rw-r--r-- | drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c b/drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c index 996fd251..5a178960 100644 --- a/drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c +++ b/drivers/gpu/nvgpu/tegra/linux/platform_gk20a_tegra.c | |||
| @@ -379,7 +379,7 @@ static void gm20b_tegra_postscale(struct device *dev, unsigned long freq) | |||
| 379 | 379 | ||
| 380 | emc_params->freq_last_set = emc_rate; | 380 | emc_params->freq_last_set = emc_rate; |
| 381 | nvgpu_mutex_acquire(&platform->railgate_lock); | 381 | nvgpu_mutex_acquire(&platform->railgate_lock); |
| 382 | if (platform->is_railgated && !platform->is_railgated(dev)) | 382 | if (platform->is_railgated && platform->is_railgated(dev)) |
| 383 | goto done; | 383 | goto done; |
| 384 | 384 | ||
| 385 | tegra_bwmgr_set_emc(emc_params->bwmgr_cl, emc_rate, | 385 | tegra_bwmgr_set_emc(emc_params->bwmgr_cl, emc_rate, |