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 8c7146716d102ad084b8fd2de6ac47baf04ae749..70e5aefe239b08d3a4b4b4c90e1e1f095a29c3ea 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)