diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2023-03-07 16:59:13 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-03-07 22:22:42 +0300 |
| commit | 920da947af28638bc94bb0012ce8600ba2d06c0e (patch) | |
| tree | 8a371ea0d9d4c18e607bd202f86db07a5d5fa171 /drivers/gpu/drm/amd/amdgpu/nv.c | |
| parent | ba137e64191f313eb0e91eeb9a1a2db1b1d5234f (diff) | |
| download | linux-920da947af28638bc94bb0012ce8600ba2d06c0e.tar.xz | |
drm/amdgpu: fix error checking in amdgpu_read_mm_registers for nv
Properly skip non-existent registers as well.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2442
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nv.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c index d972025f0d20..855d390c41de 100644 --- a/drivers/gpu/drm/amd/amdgpu/nv.c +++ b/drivers/gpu/drm/amd/amdgpu/nv.c @@ -444,9 +444,10 @@ static int nv_read_register(struct amdgpu_device *adev, u32 se_num, *value = 0; for (i = 0; i < ARRAY_SIZE(nv_allowed_read_registers); i++) { en = &nv_allowed_read_registers[i]; - if (adev->reg_offset[en->hwip][en->inst] && - reg_offset != (adev->reg_offset[en->hwip][en->inst][en->seg] - + en->reg_offset)) + if (!adev->reg_offset[en->hwip][en->inst]) + continue; + else if (reg_offset != (adev->reg_offset[en->hwip][en->inst][en->seg] + + en->reg_offset)) continue; *value = nv_get_register_value(adev, |