drm/amd/powerplay: add resume sequence placeholder for smu ip block

This patch adds resume sequence placeholder for smu ip block.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index e0a5597cf6c437304b2d929444affdd63204b287..a6f19b525420c472f461e826bddab4ae77921981 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -311,13 +311,50 @@ static int smu_resume(void *handle)
        if (adev->asic_type < CHIP_VEGA20)
                return -EINVAL;
 
+       pr_info("SMU is resuming...\n");
+
+       if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
+               ret = smu_load_microcode(smu);
+               if (ret)
+                       return ret;
+       }
+
+       ret = smu_check_fw_status(smu);
+       if (ret) {
+               pr_err("SMC firmware status is not correct\n");
+               return ret;
+       }
+
        mutex_lock(&smu->mutex);
 
-       /* TODO */
+       ret = smu_set_tool_table_location(smu);
+       if (ret)
+               goto failed;
+
+       ret = smu_write_pptable(smu);
+       if (ret)
+               goto failed;
+
+       ret = smu_write_watermarks_table(smu);
+       if (ret)
+               goto failed;
+
+       ret = smu_set_last_dcef_min_deep_sleep_clk(smu);
+       if (ret)
+               goto failed;
+
+       ret = smu_system_features_control(smu, true);
+       if (ret)
+               goto failed;
 
        mutex_unlock(&smu->mutex);
 
+       pr_info("SMU is resumed successfully!\n");
+
        return 0;
+failed:
+       mutex_unlock(&smu->mutex);
+       return ret;
 }
 
 static int smu_set_clockgating_state(void *handle,