gpu: nvgpu: MSCG support

- update gp106 pg engine init/list/features HALs
  to support MS engine
- Added defines & interface for lpwr tables read  from vbios.
- lpwr module which reads idx/gr/ms table from vbios to
  map rppg/mscg support with respective p-state
- lpwr module public functions to control lpwr
  features enable/disable mscg/rppg & mclk-change
  request whenever change in mclk-change parameters
- lpwr public functions to know rppg/mscg support for
  requested pstate,
- added mutex t prevent PG transition while arbiter
  executes pstate transition
- nvgpu_clk_arb_get_current_pstate() of clk arbiter to
  get current pstate

JIRA DNVGPU-71

Change-Id: Ifcd640cc19ef630be1e2a9ba07ec84023d8202a0
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1247553
(cherry picked from commit 8a441dea2410e1b5196ef24e56a7768b6980e46b)
Reviewed-on: http://git-master/r/1270989
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/pmu_gp10b.c b/drivers/gpu/nvgpu/gp10b/pmu_gp10b.c
index cd9cd0b0..9274990a 100644
--- a/drivers/gpu/nvgpu/gp10b/pmu_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/pmu_gp10b.c
@@ -482,6 +482,9 @@ void gp10b_init_pmu_ops(struct gpu_ops *gops)
         gops->pmu.pmu_pg_init_param = gp10b_pg_gr_init;
         gops->pmu.pmu_pg_supported_engines_list = gk20a_pmu_pg_engines_list;
         gops->pmu.pmu_pg_engines_feature_list = gk20a_pmu_pg_feature_list;
+        gops->pmu.pmu_lpwr_enable_pg = NULL;
+        gops->pmu.pmu_lpwr_disable_pg = NULL;
+        gops->pmu.pmu_pg_param_post_init = NULL;
         gops->pmu.send_lrf_tex_ltc_dram_overide_en_dis_cmd =
                         send_ecc_overide_en_dis_cmd;
         gops->pmu.reset = gk20a_pmu_reset;