diff options
author | Thomas Fleury <tfleury@nvidia.com> | 2018-06-28 19:58:48 -0400 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2018-07-01 10:03:07 -0400 |
commit | ead0dfaaa36acea84664d256e361558fe110a6df (patch) | |
tree | 0175344203c948e567278f46515d7f2b60348153 /drivers/gpu | |
parent | 1691c34a6860eb746894d495eb39b25010a92826 (diff) |
gpu: nvgpu: make sure gpc2clk is greater than DVCO min
For V/f point with gpc2clk exactly equal to DVCO min, we observe lower
than expected effective clock. Make sure min frequency for gpc2clk is
greater than DVCO min.
Bug 200412996
Change-Id: I85c33852c56c7a642aa5c85987d2da4147e73c22
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1764923
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r-- | drivers/gpu/nvgpu/gp106/clk_arb_gp106.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/nvgpu/gp106/clk_arb_gp106.c b/drivers/gpu/nvgpu/gp106/clk_arb_gp106.c index ae6cd327..5f969e79 100644 --- a/drivers/gpu/nvgpu/gp106/clk_arb_gp106.c +++ b/drivers/gpu/nvgpu/gp106/clk_arb_gp106.c | |||
@@ -67,8 +67,8 @@ int gp106_get_arbiter_clk_range(struct gk20a *g, u32 api_domain, | |||
67 | /* WAR for DVCO min */ | 67 | /* WAR for DVCO min */ |
68 | if (api_domain == CTRL_CLK_DOMAIN_GPC2CLK) | 68 | if (api_domain == CTRL_CLK_DOMAIN_GPC2CLK) |
69 | if ((pfllobjs->max_min_freq_mhz) && | 69 | if ((pfllobjs->max_min_freq_mhz) && |
70 | (pfllobjs->max_min_freq_mhz > limit_min_mhz)) | 70 | (pfllobjs->max_min_freq_mhz >= limit_min_mhz)) |
71 | limit_min_mhz = pfllobjs->max_min_freq_mhz; | 71 | limit_min_mhz = pfllobjs->max_min_freq_mhz + 1; |
72 | 72 | ||
73 | *min_mhz = limit_min_mhz; | 73 | *min_mhz = limit_min_mhz; |
74 | *max_mhz = p0_info->max_mhz; | 74 | *max_mhz = p0_info->max_mhz; |