[PATCH 7/7 v2] drm/amdgpu/gfx11: clean up kcq reset code

[Jesse.zhang@amd.com]

Replace kcq queue reset with existing function amdgpu_mes_reset_legacy_queue.

Signed-off-by: Jesse Zhang <jesse.zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 67cd42031571..b741dcb0a5a3 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -6675,30 +6675,14 @@ static int gfx_v11_0_reset_kgq(struct amdgpu_ring *ring, unsigned int vmid)
 static int gfx_v11_0_reset_kcq(struct amdgpu_ring *ring, unsigned int vmid)
 {
 	struct amdgpu_device *adev = ring->adev;
-	int i, r = 0;
+	int r = 0;
 
 	if (amdgpu_sriov_vf(adev))
 		return -EINVAL;
 
-	amdgpu_gfx_rlc_enter_safe_mode(adev, 0);
-	mutex_lock(&adev->srbm_mutex);
-	soc21_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
-	WREG32_SOC15(GC, 0, regCP_HQD_DEQUEUE_REQUEST, 0x2);
-	WREG32_SOC15(GC, 0, regSPI_COMPUTE_QUEUE_RESET, 0x1);
-
-	/* make sure dequeue is complete*/
-	for (i = 0; i < adev->usec_timeout; i++) {
-		if (!(RREG32_SOC15(GC, 0, regCP_HQD_ACTIVE) & 1))
-			break;
-		udelay(1);
-	}
-	if (i >= adev->usec_timeout)
-		r = -ETIMEDOUT;
-	soc21_grbm_select(adev, 0, 0, 0, 0);
-	mutex_unlock(&adev->srbm_mutex);
-	amdgpu_gfx_rlc_exit_safe_mode(adev, 0);
+	r = amdgpu_mes_reset_legacy_queue(ring->adev, ring, vmid, true);
 	if (r) {
-		dev_err(adev->dev, "fail to wait on hqd deactivate\n");
+		dev_err(adev->dev, "reset via MMIO failed %d\n", r);
 		return r;
 	}
 
-- 
2.25.1