gpu: nvgpu: vgpu: cyclestat snapshot support

Add support for cyclestats snapshots in the virtual case

Bug 1700143
JIRA EVLR-278

Change-Id: I376a8804d57324f43eb16452d857a3b7bb0ecc90
Signed-off-by: Peter Daifuku <pdaifuku@nvidia.com>
Reviewed-on: http://git-master/r/1211547
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 669ef1b9..1ca8ff77 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -657,6 +657,24 @@ struct gpu_ops {
         struct {
                 int (*init)(struct gk20a *g);
         } bios;
+#if defined(CONFIG_GK20A_CYCLE_STATS)
+        struct {
+                int (*enable_snapshot)(struct channel_gk20a *ch,
+                                struct gk20a_cs_snapshot_client *client);
+                void (*disable_snapshot)(struct gr_gk20a *gr);
+                int (*check_data_available)(struct channel_gk20a *ch,
+                                                u32 *pending,
+                                                bool *hw_overflow);
+                void (*set_handled_snapshots)(struct gk20a *g, u32 num);
+                u32 (*allocate_perfmon_ids)(struct gk20a_cs_snapshot *data,
+                                       u32 count);
+                u32 (*release_perfmon_ids)(struct gk20a_cs_snapshot *data,
+                                      u32 start,
+                                      u32 count);
+                int (*detach_snapshot)(struct channel_gk20a *ch,
+                                struct gk20a_cs_snapshot_client *client);
+        } css;
+#endif
 };
 
 struct nvgpu_bios_ucode {