[PATCH 34/73] drm/amdgpu/sdma5: add mes support for sdma ib test

[Alex Deucher]

From: Jack Xiao <Jack.Xiao at amd.com>

Add MES support for sdma ib test.

Signed-off-by: Jack Xiao <Jack.Xiao at amd.com>
Acked-by: Christian König <christian.koenig at amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c | 50 ++++++++++++++++++--------
 1 file changed, 36 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
index 1f0b19e18494..1f9021f896a1 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
@@ -1098,22 +1098,38 @@ static int sdma_v5_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 	long r;
 	u32 tmp = 0;
 	u64 gpu_addr;
+	volatile uint32_t *cpu_ptr = NULL;
 
-	r = amdgpu_device_wb_get(adev, &index);
-	if (r) {
-		dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
-		return r;
-	}
-
-	gpu_addr = adev->wb.gpu_addr + (index * 4);
 	tmp = 0xCAFEDEAD;
-	adev->wb.wb[index] = cpu_to_le32(tmp);
 	memset(&ib, 0, sizeof(ib));
-	r = amdgpu_ib_get(adev, NULL, 256,
+
+	if (ring->is_mes_queue) {
+		uint32_t offset = 0;
+		offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS);
+		ib.gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
+		ib.ptr = (void *)amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
+
+		offset = amdgpu_mes_ctx_get_offs(ring,
+					 AMDGPU_MES_CTX_PADDING_OFFS);
+		gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
+		cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
+		*cpu_ptr = tmp;
+	} else {
+		r = amdgpu_device_wb_get(adev, &index);
+		if (r) {
+			dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
+			return r;
+		}
+
+		gpu_addr = adev->wb.gpu_addr + (index * 4);
+		adev->wb.wb[index] = cpu_to_le32(tmp);
+
+		r = amdgpu_ib_get(adev, NULL, 256,
 					AMDGPU_IB_POOL_DIRECT, &ib);
-	if (r) {
-		DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
-		goto err0;
+		if (r) {
+			DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
+			goto err0;
+		}
 	}
 
 	ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
@@ -1140,7 +1156,12 @@ static int sdma_v5_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 		DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
 		goto err1;
 	}
-	tmp = le32_to_cpu(adev->wb.wb[index]);
+
+	if (ring->is_mes_queue)
+		tmp = le32_to_cpu(*cpu_ptr);
+	else
+		tmp = le32_to_cpu(adev->wb.wb[index]);
+
 	if (tmp == 0xDEADBEEF)
 		r = 0;
 	else
@@ -1150,7 +1171,8 @@ static int sdma_v5_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 	amdgpu_ib_free(adev, &ib, NULL);
 	dma_fence_put(f);
 err0:
-	amdgpu_device_wb_free(adev, index);
+	if (!ring->is_mes_queue)
+		amdgpu_device_wb_free(adev, index);
 	return r;
 }
 
-- 
2.35.1