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authorJames Zhu <James.Zhu@amd.com>2018-09-10 12:53:25 -0400
committerAlex Deucher <alexander.deucher@amd.com>2018-09-13 15:14:08 -0500
commit52e211c1f04f7544bf3d3cf5ed3939708d5988d2 (patch)
tree2eb1bfb183ceaf4b098b78cf0aa28322cfd8785e
parent8901a65f080ad6f4d7c3ef9f23c6f3a0e3e194aa (diff)
drm/amdgpu:Add error message when register failed to reach expected value
Add error message when register failed to reach expected value, It will help discover potential issue. Signed-off-by: James Zhu <James.Zhu@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/soc15_common.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15_common.h b/drivers/gpu/drm/amd/amdgpu/soc15_common.h
index 0942f492d2e1..f5d602540673 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15_common.h
+++ b/drivers/gpu/drm/amd/amdgpu/soc15_common.h
@@ -56,6 +56,8 @@
tmp_ = RREG32(adev->reg_offset[ip##_HWIP][inst][reg##_BASE_IDX] + reg); \
loop--; \
if (!loop) { \
+ DRM_ERROR("Register(%d) [%s] failed to reach value 0x%08x != 0x%08x\n", \
+ inst, #reg, expected_value, (tmp_ & (mask))); \
ret = -ETIMEDOUT; \
break; \
} \