From: lin cao lin.cao@amd.com
[ Upstream commit 748262eb400e809aa13e3485f4983c3db3d0ebb3 ]
In the case of SRIOV, the register smnMp1_PMI_3_FIFO will get an invalid value which will cause the "shift out of bound". In Ubuntu22.04, this issue will be checked an related call trace will be reported in dmesg.
Signed-off-by: lin cao lin.cao@amd.com Reviewed-by: Jingwen Chen Jingwen.Chen2@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c index 78f3d9e722bb..4db7e32efd08 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c @@ -886,6 +886,7 @@ static void sienna_cichlid_stb_init(struct smu_context *smu);
static int sienna_cichlid_init_smc_tables(struct smu_context *smu) { + struct amdgpu_device *adev = smu->adev; int ret = 0;
ret = sienna_cichlid_tables_init(smu); @@ -896,7 +897,8 @@ static int sienna_cichlid_init_smc_tables(struct smu_context *smu) if (ret) return ret;
- sienna_cichlid_stb_init(smu); + if (!amdgpu_sriov_vf(adev)) + sienna_cichlid_stb_init(smu);
return smu_v11_0_init_smc_tables(smu); }