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gpu: nvgpu: gv11b: Enable perfmon.

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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>
This commit is contained in:
Deepak Goyal
2018-01-18 11:44:47 +05:30
committed by mobile promotions
parent a57258e9b1
commit e0dbf3a784
14 changed files with 286 additions and 8 deletions
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4
drivers/gpu/nvgpu/common/linux/debug_pmu.c
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@@ -352,11 +352,11 @@ static ssize_t perfmon_events_enable_write(struct file *file,
if (val && !g->pmu.perfmon_sampling_enabled &&
nvgpu_is_enabled(g, NVGPU_PMU_PERFMON)) {
g->pmu.perfmon_sampling_enabled = true;
nvgpu_pmu_perfmon_start_sampling(&(g->pmu));
g->ops.pmu.pmu_perfmon_start_sampling(&(g->pmu));
} else if (!val && g->pmu.perfmon_sampling_enabled &&
nvgpu_is_enabled(g, NVGPU_PMU_PERFMON)) {
g->pmu.perfmon_sampling_enabled = false;
nvgpu_pmu_perfmon_stop_sampling(&(g->pmu));
g->ops.pmu.pmu_perfmon_stop_sampling(&(g->pmu));
}
gk20a_idle(g);
} else {