drm/amdgpu: skip the new gc doorbell function for some asics

This patch will skip the new gc doorbell function for some asics,
only enable new doorbell model on aisc where it is supported.

Signed-off-by: Xiaojian Du <Xiaojian.Du@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 8c71467..70e5aef 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -4587,7 +4587,8 @@ static int gfx_v11_0_hw_init(void *handle)
        if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP)
                gfx_v11_0_select_cp_fw_arch(adev);
 
-       adev->nbio.funcs->gc_doorbell_init(adev);
+       if (adev->nbio.funcs->gc_doorbell_init)
+               adev->nbio.funcs->gc_doorbell_init(adev);
 
        r = gfx_v11_0_rlc_resume(adev);
        if (r)