gpu: nvgpu: gv11b: Enable perfmon.

t19x PMU ucode uses RPC mechanism for
PERFMON commands.

- Declared  "pmu_init_perfmon",
  "pmu_perfmon_start_sampling",
  "pmu_perfmon_stop_sampling" and
  "pmu_perfmon_get_samples" in pmu ops
  to differenciate for chips using RPC & legacy
  cmd/msg mechanism.
- Defined and used PERFMON RPC commands for t19x
  	- INIT
	- START
	- STOP
	- QUERY
- Adds RPC handler for PERFMON RPC commands.
- For guerying GPU utilization/load, we need to send PERFMON_QUERY
  RPC command for gv11b.
- Enables perfmon for gv11b.

Bug 2039013

Change-Id: Ic32326f81d48f11bc772afb8fee2dee6e427a699
Signed-off-by: Deepak Goyal <dgoyal@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1614114
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Tested-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
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/gm20b/hal_gm20b.c b/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
index 3ee22ed1..8a5c1278 100644
--- a/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/hal_gm20b.c
@@ -483,6 +483,9 @@ static const struct gpu_ops gm20b_ops = {
                 .pmu_mutex_release = gk20a_pmu_mutex_release,
                 .write_dmatrfbase = gm20b_write_dmatrfbase,
                 .pmu_elpg_statistics = gk20a_pmu_elpg_statistics,
+                .pmu_init_perfmon = nvgpu_pmu_init_perfmon,
+                .pmu_perfmon_start_sampling = nvgpu_pmu_perfmon_start_sampling,
+                .pmu_perfmon_stop_sampling = nvgpu_pmu_perfmon_stop_sampling,
                 .pmu_pg_init_param = NULL,
                 .pmu_pg_supported_engines_list = gk20a_pmu_pg_engines_list,
                 .pmu_pg_engines_feature_list = gk20a_pmu_pg_feature_list,