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gpu: nvgpu: Use sw ops for Perfmon

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Some functions are not accessing hardware directly
but are being called using HAL ops: For example

.pmu_init_perfmon = nvgpu_pmu_init_perfmon_rpc,
.pmu_perfmon_start_sampling = nvgpu_pmu_perfmon_start_sampling_rpc,
.pmu_perfmon_stop_sampling = nvgpu_pmu_perfmon_stop_sampling_rpc,
.pmu_perfmon_get_samples_rpc = nvgpu_pmu_perfmon_get_samples_rpc,

These were being called by:
g->ops.pmu.pmu_init_perfmon,
g->ops.pmu.pmu_perfmon_start_sampling,
g->ops.pmu.pmu_perfmon_stop_sampling,
g->ops.pmu.pmu_perfmon_get_samples_rpc

Change the function access by using sw ops, like:
Create new functions:
int nvgpu_pmu_perfmon_init(struct gk20a *g,
	struct nvgpu_pmu *pmu, struct nvgpu_pmu_perfmon *perfmon);
int nvgpu_pmu_start_sampling_perfmon(struct gk20a *g,
	struct nvgpu_pmu *pmu, struct nvgpu_pmu_perfmon *perfmon);
int nvgpu_pmu_stop_sampling_perfmon(struct gk20a *g,
	struct nvgpu_pmu *pmu, struct nvgpu_pmu_perfmon *perfmon);
int nvgpu_pmu_get_samples_rpc_perfmon(struct gk20a *g,
	struct nvgpu_pmu *pmu, struct nvgpu_pmu_perfmon *perfmon);

and based on hardware chip call the chip specific
perfmon sw init function: nvgpu_gv11b_perfmon_sw_init() and
nvgpu_gv100_perfmon_sw_init() and assign the sw ops for perfmon

JIRA NVGPU-3210

Change-Id: I2470863f87a7969e3c0454fa48761499b08d445c
Signed-off-by: Divya Singhatwaria <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2109899
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Divya Singhatwaria
2019-04-30 15:29:50 +05:30
committed by mobile promotions
parent 1cd29cc075
commit c19d7e3911
19 changed files with 241 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/nvgpu/os/linux/debug_pmu.c
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@@ -357,13 +357,15 @@ static ssize_t perfmon_events_enable_write(struct file *file,
&& nvgpu_is_enabled(g, NVGPU_PMU_PERFMON)) {
nvgpu_pmu_perfmon_set_sampling_enable_status(&(g->pmu),
true);
g->ops.pmu.pmu_perfmon_start_sampling(&(g->pmu));
nvgpu_pmu_perfmon_start_sample(g, &(g->pmu),
g->pmu.pmu_perfmon);
} else if (!val
&& nvgpu_pmu_perfmon_get_sampling_enable_status(&(g->pmu))
&& nvgpu_is_enabled(g, NVGPU_PMU_PERFMON)) {
nvgpu_pmu_perfmon_set_sampling_enable_status(&(g->pmu),
false);
g->ops.pmu.pmu_perfmon_stop_sampling(&(g->pmu));
nvgpu_pmu_perfmon_stop_sample(g, &(g->pmu),
g->pmu.pmu_perfmon);
}
gk20a_idle(g);
} else {