1 files changed, 32 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
index b2213739..0909b660 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.h
@@ -170,6 +170,11 @@ struct sm_info {
         u8 tpc_index;
 };
 
+#if defined(CONFIG_GK20A_CYCLE_STATS)
+struct gk20a_cs_snapshot_client;
+struct gk20a_cs_snapshot;
+#endif
+
 struct gr_gk20a {
         struct gk20a *g;
         struct {
@@ -294,6 +299,10 @@ struct gr_gk20a {
         u32 fbp_en_mask;
         u32 no_of_sm;
         struct sm_info *sm_to_cluster;
+#if defined(CONFIG_GK20A_CYCLE_STATS)
+        struct mutex                    cs_lock;
+        struct gk20a_cs_snapshot        *cs_data;
+#endif
 };
 
 void gk20a_fecs_dump_falcon_stats(struct gk20a *g);
@@ -497,4 +506,27 @@ void gr_gk20a_free_gr_ctx(struct gk20a *g,
 int gr_gk20a_halt_pipe(struct gk20a *g);
 int gr_gk20a_debugfs_init(struct gk20a *g);
 
+#if defined(CONFIG_GK20A_CYCLE_STATS)
+int gr_gk20a_css_attach(struct gk20a *g,        /* in - main hw structure */
+                        u32 dmabuf_fd,          /* in - dma mapped memory */
+                        u32 perfmon_id_count,   /* in - number of perfmons*/
+                        u32 *perfmon_id_start,  /* out- index of first pm */
+                        /* out - pointer to client data used in later     */
+                        struct gk20a_cs_snapshot_client **css_client);
+
+int gr_gk20a_css_detach(struct gk20a *g,
+                                struct gk20a_cs_snapshot_client *css_client);
+int gr_gk20a_css_flush(struct gk20a *g,
+                                struct gk20a_cs_snapshot_client *css_client);
+
+void gr_gk20a_free_cyclestats_snapshot_data(struct gk20a *g);
+
+#else
+/* fake empty cleanup function if no cyclestats snapshots enabled */
+static inline void gr_gk20a_free_cyclestats_snapshot_data(struct gk20a *g)
+{
+        (void)g;
+}
+#endif
+
 #endif /*__GR_GK20A_H__*/