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drm/amdgpu: Fix with right return code '-EIO' in 'amdgpu_gmc_vram_checking()' 

[ Upstream commit fac4ebd79fed60e79cccafdad45a2bb8d3795044 ]

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 <Xiaojian.Du@amd.com>
Cc: Lijo Lazar <lijo.lazar@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Srinivasan Shanmugam 2024-01-04 15:26:42 +05:30 committed by Greg Kroah-Hartman
parent d282ea0703
commit af8e292615
1 changed files with 14 additions and 7 deletions
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21
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
View File

@ -808,19 +808,26 @@ int amdgpu_gmc_vram_checking(struct amdgpu_device *adev)
* seconds, so here, we just pick up three parts for emulation.
*/
ret = memcmp(vram_ptr, cptr, 10);
if (ret)
return ret;
if (ret) {
ret = -EIO;
goto release_buffer;
}
ret = memcmp(vram_ptr + (size / 2), cptr, 10);
if (ret)
return ret;
if (ret) {
ret = -EIO;
goto release_buffer;
}
ret = memcmp(vram_ptr + size - 10, cptr, 10);
if (ret)
return ret;
if (ret) {
ret = -EIO;
goto release_buffer;
}
release_buffer:
amdgpu_bo_free_kernel(&vram_bo, &vram_gpu,
&vram_ptr);
return 0;
return ret;
}