drm/amdgpu: fix sysfs interface pcie_replay_count error on navi asic

the asic callback function of get_pcie_replay_count is not implement on navi asic,
it will cause null pinter error when read this interface.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c
index a55a2e8..af68f98 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/nv.c
@@ -539,6 +539,16 @@ static bool nv_need_reset_on_init(struct amdgpu_device *adev)
        return false;
 }
 
+static uint64_t nv_get_pcie_replay_count(struct amdgpu_device *adev)
+{
+
+       /* TODO
+        * dummy implement for pcie_replay_count sysfs interface
+        * */
+
+       return 0;
+}
+
 static void nv_init_doorbell_index(struct amdgpu_device *adev)
 {
        adev->doorbell_index.kiq = AMDGPU_NAVI10_DOORBELL_KIQ;
@@ -586,6 +596,7 @@ static const struct amdgpu_asic_funcs nv_asic_funcs =
        .need_full_reset = &nv_need_full_reset,
        .get_pcie_usage = &nv_get_pcie_usage,
        .need_reset_on_init = &nv_need_reset_on_init,
+       .get_pcie_replay_count = &nv_get_pcie_replay_count,
 };
 
 static int nv_common_early_init(void *handle)