drm/amdgpu: add ras error query count interface for nbio

Add the interface query_ras_error_count for nbio.
Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@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.h

@@ -81,6 +81,8 @@ struct amdgpu_nbio_funcs {
 	void (*handle_ras_err_event_athub_intr_no_bifring)(struct amdgpu_device *adev);
 	int (*init_ras_controller_interrupt)(struct amdgpu_device *adev);
 	int (*init_ras_err_event_athub_interrupt)(struct amdgpu_device *adev);
+	void (*query_ras_error_count)(struct amdgpu_device *adev,
+					void *ras_error_status);
 	int (*ras_late_init)(struct amdgpu_device *adev);
 };
 

drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c

@@ -473,6 +473,11 @@ static int nbio_v7_4_init_ras_err_event_athub_interrupt (struct amdgpu_device *a
 	return 0;
 }
 
+static void nbio_v7_4_query_ras_error_count(struct amdgpu_device *adev,
+					void *ras_error_status)
+{
+}
+
 const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {
 	.get_hdp_flush_req_offset = nbio_v7_4_get_hdp_flush_req_offset,
 	.get_hdp_flush_done_offset = nbio_v7_4_get_hdp_flush_done_offset,
@@ -498,5 +503,6 @@ const struct amdgpu_nbio_funcs nbio_v7_4_funcs = {
 	.handle_ras_err_event_athub_intr_no_bifring = nbio_v7_4_handle_ras_err_event_athub_intr_no_bifring,
 	.init_ras_controller_interrupt = nbio_v7_4_init_ras_controller_interrupt,
 	.init_ras_err_event_athub_interrupt = nbio_v7_4_init_ras_err_event_athub_interrupt,
+	.query_ras_error_count = nbio_v7_4_query_ras_error_count,
 	.ras_late_init = amdgpu_nbio_ras_late_init,
 };