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| author | Lijo Lazar <lijo.lazar@amd.com> | 2022-03-03 09:13:22 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-03-15 14:25:15 -0400 |
| commit | bb7c3e9ce2d43a37b699ca379876089e03a756e3 (patch) | |
| tree | 1e99ad06ff032585adbf09104efda549a76556db /drivers | |
| parent | f6d790e5a7fe42706756c7fa1686d08d230610fc (diff) | |
| download | linux-bb7c3e9ce2d43a37b699ca379876089e03a756e3.tar.bz2 | |
drm/amdgpu: Disable baco dummy mode
On aldebaran, BACO dummy mode may be enabled during reset. Disable
it during resume.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c index b31df4db01fb..c2357e83a8c4 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c @@ -362,9 +362,24 @@ const struct nbio_hdp_flush_reg nbio_v7_4_hdp_flush_reg_ald = { static void nbio_v7_4_init_registers(struct amdgpu_device *adev) { + uint32_t baco_cntl; + if (amdgpu_sriov_vf(adev)) adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2; + + if (adev->ip_versions[NBIO_HWIP][0] == IP_VERSION(7, 4, 4) && + !amdgpu_sriov_vf(adev)) { + baco_cntl = RREG32_SOC15(NBIO, 0, mmBACO_CNTL); + if (baco_cntl & + (BACO_CNTL__BACO_DUMMY_EN_MASK | BACO_CNTL__BACO_EN_MASK)) { + baco_cntl &= ~(BACO_CNTL__BACO_DUMMY_EN_MASK | + BACO_CNTL__BACO_EN_MASK); + dev_dbg(adev->dev, "Unsetting baco dummy mode %x", + baco_cntl); + WREG32_SOC15(NBIO, 0, mmBACO_CNTL, baco_cntl); + } + } } static void nbio_v7_4_handle_ras_controller_intr_no_bifring(struct amdgpu_device *adev) |