drm/amdgpu/swSMU: correct the bootup power source for Navi1X (v2) (66c2f5db) · Commits · 戴 / test

PMFW may boots those ASICs with DC mode. Need to set it back to AC mode. v2: split from Evan's original patch (Alex) Bug: https://gitlab.freedesktop.org/drm/amd/issues/1043 Reviewed-by:

drivers/gpu/drm/amd/powerplay/amdgpu_smu.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -1154,6 +1154,21 @@ static int smu_smc_table_hw_init(struct smu_context *smu,
		}
		}
		}

		if (adev->asic_type >= CHIP_NAVI10 &&
		adev->asic_type <= CHIP_NAVI12) {
		/*
		* For Navi1X, manually switch it to AC mode as PMFW
		* may boot it with DC mode.
		* TODO: should check whether we are indeed under AC
		* mode before doing this.
		*/
		ret = smu_set_power_source(smu, SMU_POWER_SOURCE_AC);
		if (ret) {
		pr_err("Failed to switch to AC mode!\n");
		return ret;
		}
		}
		}
		if (adev->asic_type != CHIP_ARCTURUS) {
		ret = smu_notify_display_change(smu);