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path: root/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c15
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)