drm/amdgpu: add status checking after fw is loaded

The status field must be 0 after FW is loaded.

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/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 58e2038..bd397d2 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -134,6 +134,13 @@ psp_cmd_submit_buf(struct psp_context *psp,
                msleep(1);
        }
 
+       /* the status field must be 0 after FW is loaded */
+       if (ucode && psp->cmd_buf_mem->resp.status) {
+               DRM_ERROR("failed loading with status (%d) and ucode id (%d)\n",
+                         psp->cmd_buf_mem->resp.status, ucode->ucode_id);
+               return -EINVAL;
+       }
+
        if (ucode) {
                ucode->tmr_mc_addr_lo = psp->cmd_buf_mem->resp.fw_addr_lo;
                ucode->tmr_mc_addr_hi = psp->cmd_buf_mem->resp.fw_addr_hi;