[PATCH] drm/amdgpu/mes12: enable mes pipe wptr polling

[Jack Xiao]

Enable mes pipe wptr polling for gfxoff might result
in mes pipe wptr missing.

Signed-off-by: Jack Xiao <Jack.Xiao at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/mes_v12_0.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c b/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
index 185f4b55dcca..e516e4598017 100644
--- a/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v12_0.c
@@ -1256,6 +1256,9 @@ static int mes_v12_0_queue_init(struct amdgpu_device *adev,
 	else if (pipe == AMDGPU_MES_KIQ_PIPE && adev->enable_mes_kiq)
 		adev->mes.kiq_version = RREG32_SOC15(GC, 0, regCP_MES_GP3_LO);
 
+	/* enable wptr polling */
+	WREG32_FIELD15_PREREG(GC, 0, CP_PQ_WPTR_POLL_CNTL, EN, 1);
+
 	soc21_grbm_select(adev, 0, 0, 0, 0);
 	mutex_unlock(&adev->srbm_mutex);
 
-- 
2.41.0