The amdgpu_gmc_vram_checking() function in emulation checks whether all of the memory range of shared system memory could be accessed by GPU, from this aspect, -EIO is returned for error scenarios.
Fixes the below: drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c:919 gmc_v6_0_hw_init() warn: missing error code? 'r' drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c:1103 gmc_v7_0_hw_init() warn: missing error code? 'r' drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c:1223 gmc_v8_0_hw_init() warn: missing error code? 'r' drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c:2344 gmc_v9_0_hw_init() warn: missing error code? 'r' Cc: Xiaojian Du <[email protected]> Cc: Lijo Lazar <[email protected]> Cc: Christian König <[email protected]> Cc: Alex Deucher <[email protected]> Signed-off-by: Srinivasan Shanmugam <[email protected]> Suggested-by: Christian König <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c index d2f273d77e59..de9576b243aa 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c @@ -1046,15 +1046,15 @@ int amdgpu_gmc_vram_checking(struct amdgpu_device *adev) */ ret = memcmp(vram_ptr, cptr, 10); if (ret) - return ret; + return -EIO; ret = memcmp(vram_ptr + (size / 2), cptr, 10); if (ret) - return ret; + return -EIO; ret = memcmp(vram_ptr + size - 10, cptr, 10); if (ret) - return ret; + return -EIO; amdgpu_bo_free_kernel(&vram_bo, &vram_gpu, &vram_ptr); -- 2.34.1
