On GFX v9.4.3, application have random timeout failure when XNACK on, with dmesg log "amdgpu: IH soft ring buffer overflow 0x900, 0x900", means retry CAM has more than 256 entries. After increasing IH soft ring to 512 entries, the test passed repeatly, no IH soft ring overflow message. Signed-off-by: Philip Yang <Philip.Yang@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/vega20_ih.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c index ddfc6941f9d5..f9cde0d083fa 100644 --- a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c +++ b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c @@ -566,7 +566,7 @@ static int vega20_ih_sw_init(void *handle) /* initialize ih control registers offset */ vega20_ih_init_register_offset(adev); - r = amdgpu_ih_ring_init(adev, &adev->irq.ih_soft, IH_SW_RING_SIZE, use_bus_addr); + r = amdgpu_ih_ring_init(adev, &adev->irq.ih_soft, IH_SW_RING_SIZE * 2, use_bus_addr); if (r) return r; -- 2.35.1
