Signed-off-by: Rohit Khaire <rohit.khaire@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c b/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c index 7429f30398b9..4f611cd68940 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v2_3.c @@ -51,8 +51,19 @@ static void nbio_v2_3_remap_hdp_registers(struct amdgpu_device *adev) static u32 nbio_v2_3_get_rev_id(struct amdgpu_device *adev) { - u32 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0); + u32 tmp; + + if (amdgpu_sriov_vf(adev)) { + /* workaround on rev_id for sriov + * guest vm gets 0xffffffff when reading RCC_DEV0_EPF0_STRAP0, + * as a consequence, the rev_id and external_rev_id are wrong. + * + * workaround it by using PCI revision id. + */ + return adev->pdev->revision; + } + tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0); tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK; tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT; -- 2.17.1 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx