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gpu: nvgpu: abstract submit profiling

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Add gk20a_fifo_profile_snapshot() to store the submit time in a
profiling entry that was acquired from gk20a_fifo_profile_acquire().
Also get rid of ifdef CONFIG_DEBUG_FS by stubbing the acquire and free
functions when debugfs is not enabled. This reduces some cyclomatic
complexity in the submit path.

Jira NVGPU-708

Change-Id: I39829a6475cfe3aa582620219e420bde62228e52
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1729545
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Konsta Holtta
2018-05-22 12:59:02 +03:00
committed by mobile promotions
parent 45d0a9c711
commit cae514120b
4 changed files with 32 additions and 18 deletions
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14
drivers/gpu/nvgpu/common/linux/channel.c
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@@ -19,7 +19,6 @@
#include <nvgpu/ltc.h>
#include <nvgpu/error_notifier.h>
#include <nvgpu/os_sched.h>
#include <nvgpu/timers.h>
/*
* This is required for nvgpu_vm_find_buf() which is used in the tracing
@@ -812,8 +811,7 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
return -EINVAL;
}
if (profile)
profile->timestamp[PROFILE_ENTRY] = nvgpu_current_time_ns();
gk20a_fifo_profile_snapshot(profile, PROFILE_ENTRY);
/* update debug settings */
nvgpu_ltc_sync_enabled(g);
@@ -961,8 +959,7 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
goto clean_up_job;
}
if (profile)
profile->timestamp[PROFILE_JOB_TRACKING] = nvgpu_current_time_ns();
gk20a_fifo_profile_snapshot(profile, PROFILE_JOB_TRACKING);
if (wait_cmd)
gk20a_submit_append_priv_cmdbuf(c, wait_cmd);
@@ -986,8 +983,7 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
if (need_job_tracking)
/* TODO! Check for errors... */
gk20a_channel_add_job(c, job, skip_buffer_refcounting);
if (profile)
profile->timestamp[PROFILE_APPEND] = nvgpu_current_time_ns();
gk20a_fifo_profile_snapshot(profile, PROFILE_APPEND);
g->ops.fifo.userd_gp_put(g, c);
@@ -1005,8 +1001,8 @@ int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
nvgpu_log_info(g, "post-submit put %d, get %d, size %d",
c->gpfifo.put, c->gpfifo.get, c->gpfifo.entry_num);
if (profile)
profile->timestamp[PROFILE_END] = nvgpu_current_time_ns();
gk20a_fifo_profile_snapshot(profile, PROFILE_END);
nvgpu_log_fn(g, "done");
return err;