diff options
| author | Rex Zhu <Rex.Zhu@amd.com> | 2018-01-25 18:42:08 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:19:07 -0500 |
| commit | 61e208b16e93747df49ed47fc66443d9d68e996e (patch) | |
| tree | fb675dd68793ce7ead87cd0f381ac7c96f264f98 /drivers/gpu/drm/amd/amdgpu/ci_dpm.c | |
| parent | 337ecd6a98297493abe826203e553cad6bdfc309 (diff) | |
| download | linux-61e208b16e93747df49ed47fc66443d9d68e996e.tar.bz2 | |
drm/amd/pp: Fix sysfs pp_dpm_pcie bug on CI/VI
when echo "01">pp_dpm_pcie
the pcie dpm will fix in highest link speed.
But user should expect auto speed between
level 0 and level1
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/ci_dpm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/ci_dpm.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c index 5f61e7000a00..f82f40fb3bea 100644 --- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c @@ -6642,6 +6642,9 @@ static int ci_dpm_force_clock_level(void *handle, if (adev->pm.dpm.forced_level != AMD_DPM_FORCED_LEVEL_MANUAL) return -EINVAL; + if (mask == 0) + return -EINVAL; + switch (type) { case PP_SCLK: if (!pi->sclk_dpm_key_disabled) @@ -6660,15 +6663,15 @@ static int ci_dpm_force_clock_level(void *handle, case PP_PCIE: { uint32_t tmp = mask & pi->dpm_level_enable_mask.pcie_dpm_enable_mask; - uint32_t level = 0; - while (tmp >>= 1) - level++; - - if (!pi->pcie_dpm_key_disabled) - amdgpu_ci_send_msg_to_smc_with_parameter(adev, + if (!pi->pcie_dpm_key_disabled) { + if (fls(tmp) != ffs(tmp)) + amdgpu_ci_send_msg_to_smc(adev, PPSMC_MSG_PCIeDPM_UnForceLevel); + else + amdgpu_ci_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_PCIeDPM_ForceLevel, - level); + fls(tmp) - 1); + } break; } default: |