From: Huang Rui <ray.huang@amd.com>
Date: Sun, 5 Aug 2018 04:45:35 +0000 (+0800)
Subject: drm/amdgpu: add status checking after fw is loaded
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=28a160277aef92b606c869960f40704493d30b42;p=openwrt%2Fstaging%2Fblogic.git

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 58e20385eab5..bd397d2916fb 100644
--- 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;