This patch adds resume sequence placeholder for smu ip block.
Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 39 +++++++++++++++++++++++++++++-
1 file changed, 38 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index e0a5597..a6f19b5 100644
--- 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,
--
2.7.4
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