drm/amdgpu: Fix HDP flush for VFs on nbio v7.9

[ Upstream commit 534c8a5b9d5d41d30cdcac93cfa1bca5e17be009 ]

HDP flush remapping is not done for VFs. Keep the original offsets in VF
environment.

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c
index ae45656eb877992d01da0548b10ac9b789a3683b..0a601336cf697fac31fd329a56d112da66be0455 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c
@@ -426,6 +426,12 @@ static void nbio_v7_9_init_registers(struct amdgpu_device *adev)
        u32 inst_mask;
        int i;
 
+       if (amdgpu_sriov_vf(adev))
+               adev->rmmio_remap.reg_offset =
+                       SOC15_REG_OFFSET(
+                               NBIO, 0,
+                               regBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL)
+                       << 2;
        WREG32_SOC15(NBIO, 0, regXCC_DOORBELL_FENCE,
                0xff & ~(adev->gfx.xcc_mask));