drm/amdgpu: reduce the ring size for SDMA

Those are way too large.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/cik_sdma.c

@@ -976,7 +976,7 @@ static int cik_sdma_sw_init(void *handle)
 		ring = &adev->sdma.instance[i].ring;
 		ring->ring_obj = NULL;
 		sprintf(ring->name, "sdma%d", i);
-		r = amdgpu_ring_init(adev, ring, 32 * 1024,
+		r = amdgpu_ring_init(adev, ring, 1024,
 				     SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0), 0xf,
 				     &adev->sdma.trap_irq,
 				     (i == 0) ?

drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c

@@ -990,7 +990,7 @@ static int sdma_v2_4_sw_init(void *handle)
 		ring->ring_obj = NULL;
 		ring->use_doorbell = false;
 		sprintf(ring->name, "sdma%d", i);
-		r = amdgpu_ring_init(adev, ring, 32 * 1024,
+		r = amdgpu_ring_init(adev, ring, 1024,
 				     SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), 0xf,
 				     &adev->sdma.trap_irq,
 				     (i == 0) ?

drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c

@@ -1176,7 +1176,7 @@ static int sdma_v3_0_sw_init(void *handle)
 			AMDGPU_DOORBELL_sDMA_ENGINE0 : AMDGPU_DOORBELL_sDMA_ENGINE1;
 
 		sprintf(ring->name, "sdma%d", i);
-		r = amdgpu_ring_init(adev, ring, 256 * 1024,
+		r = amdgpu_ring_init(adev, ring, 1024,
 				     SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP), 0xf,
 				     &adev->sdma.trap_irq,
 				     (i == 0) ?