Commit bb7c3e9c authored by Lijo Lazar's avatar Lijo Lazar Committed by Alex Deucher
Browse files

drm/amdgpu: Disable baco dummy mode 



On aldebaran, BACO dummy mode may be enabled during reset. Disable
it during resume.

Signed-off-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent f6d790e5

drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c

+15 −0
Original line number Diff line number Diff line
@@ -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)