drm/amdgpu: Add pcie usage callback to nbio

Add a callback in nbio to get pcie usage
Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Shiwu Zhang <shiwu.zhang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -53,6 +53,14 @@ u64 amdgpu_nbio_get_pcie_replay_count(struct amdgpu_device *adev)
 	return 0;
 }
 
+void amdgpu_nbio_get_pcie_usage(struct amdgpu_device *adev, uint64_t *count0,
+				uint64_t *count1)
+{
+	if (adev->nbio.funcs->get_pcie_usage)
+		adev->nbio.funcs->get_pcie_usage(adev, count0, count1);
+
+}
+
 int amdgpu_nbio_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block)
 {
 	int r;

drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h

@@ -100,6 +100,8 @@ struct amdgpu_nbio_funcs {
 	u32 (*get_memory_partition_mode)(struct amdgpu_device *adev,
 					 u32 *supp_modes);
 	u64 (*get_pcie_replay_count)(struct amdgpu_device *adev);
+	void (*get_pcie_usage)(struct amdgpu_device *adev, uint64_t *count0,
+					uint64_t *count1);
 };
 
 struct amdgpu_nbio {
@@ -112,6 +114,7 @@ struct amdgpu_nbio {
 };
 
 int amdgpu_nbio_ras_sw_init(struct amdgpu_device *adev);
+void amdgpu_nbio_get_pcie_usage(struct amdgpu_device *adev, uint64_t *count0, uint64_t *count1);
 int amdgpu_nbio_ras_late_init(struct amdgpu_device *adev, struct ras_common_if *ras_block);
 u64 amdgpu_nbio_get_pcie_replay_count(struct amdgpu_device *adev);