gpu: nvgpu: implement chip specific init_elcg_mode

Added function pointer to implement chip specific
init_elcg mode and updated this pointer for legacy chips.

JIRA GV11B-58

Change-Id: I3fff4f771eaa5dad98a3d8166c9127ecd6b745e4
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/1300120
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

3 files changed, 5 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 2f6e83a4..19fa4e26 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -337,6 +337,7 @@ struct gpu_ops {
                                         struct mem_desc *mem, u64 gpu_va);
                 void (*write_pm_ptr)(struct gk20a *g,
                                         struct mem_desc *mem, u64 gpu_va);
+                void (*init_elcg_mode)(struct gk20a *g, u32 mode, u32 engine);
         } gr;
         const char *name;
         struct {
diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
index 488a6fcb..5802cb68 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
@@ -4455,7 +4455,8 @@ void gr_gk20a_init_cg_mode(struct gk20a *g, u32 cgmode, u32 mode_config)
                                 gr_gk20a_init_blcg_mode(g, mode_config, active_engine_id);
                                 break;
                 } else if (cgmode == ELCG_MODE)
-                        gr_gk20a_init_elcg_mode(g, mode_config, active_engine_id);
+                        g->ops.gr.init_elcg_mode(g, mode_config,
+                                                active_engine_id);
                 else
                         gk20a_err(dev_from_gk20a(g), "invalid cg mode %d %d", cgmode, mode_config);
         }
@@ -9316,4 +9317,5 @@ void gk20a_init_gr_ops(struct gpu_ops *gops)
         gops->gr.commit_inst = gr_gk20a_commit_inst;
         gops->gr.write_zcull_ptr = gr_gk20a_write_zcull_ptr;
         gops->gr.write_pm_ptr = gr_gk20a_write_pm_ptr;
+        gops->gr.init_elcg_mode = gr_gk20a_init_elcg_mode;
 }
diff --git a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
index 391fb8a2..0e0d3f62 100644
--- a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
@@ -1605,5 +1605,6 @@ void gm20b_init_gr(struct gpu_ops *gops)
         gops->gr.commit_inst = gr_gk20a_commit_inst;
         gops->gr.write_zcull_ptr = gr_gk20a_write_zcull_ptr;
         gops->gr.write_pm_ptr = gr_gk20a_write_pm_ptr;
+        gops->gr.init_elcg_mode = gr_gk20a_init_elcg_mode;
 
 }