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Code Issues Releases Wiki Activity

drm/amdgpu: just not load smc firmware if smu is already running

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Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2016-10-26 13:44:12 +08:00 committed by Alex Deucher
parent 86f8c599b0
commit 3f767e3d07
1 changed files with 5 additions and 2 deletions
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7
drivers/gpu/drm/amd/amdgpu/ci_dpm.c
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@ -2207,6 +2207,11 @@ static int ci_upload_firmware(struct amdgpu_device *adev)
struct ci_power_info *pi = ci_get_pi(adev);
int i, ret;
if (amdgpu_ci_is_smc_running(adev)) {
DRM_INFO("smc is running, no need to load smc firmware\n");
return 0;
}
for (i = 0; i < adev->usec_timeout; i++) {
if (RREG32_SMC(ixRCU_UC_EVENTS) & RCU_UC_EVENTS__boot_seq_done_MASK)
break;
@ -5275,8 +5280,6 @@ static int ci_dpm_enable(struct amdgpu_device *adev)
struct amdgpu_ps *boot_ps = adev->pm.dpm.boot_ps;
int ret;
if (amdgpu_ci_is_smc_running(adev))
return -EINVAL;
if (pi->voltage_control != CISLANDS_VOLTAGE_CONTROL_NONE) {
ci_enable_voltage_control(adev);
ret = ci_construct_voltage_tables(adev);