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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2020-04-29 23:54:41 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-04-30 02:57:34 +0300 |
| commit | 426d0073fb6d1a9513978cea4c9e8396f3721fba (patch) | |
| tree | e0e1c1a7971a7b5dd0b0eded8911a2a691c6cff3 /drivers/gpu/drm/i915/selftests | |
| parent | be1cb55a07bfc528d826962f1e421a44ed5f8311 (diff) | |
| download | linux-426d0073fb6d1a9513978cea4c9e8396f3721fba.tar.xz | |
drm/i915/gt: Always enable busy-stats for execlists
In the near future, we will utilize the busy-stats on each engine to
approximate the C0 cycles of each, and use that as an input to a manual
RPS mechanism. That entails having busy-stats always enabled and so we
can remove the enable/disable routines and simplify the pmu setup. As a
consequence of always having the stats enabled, we can also show the
current active time via sysfs/engine/xcs/active_time_ns.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200429205446.3259-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/selftests')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_request.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c index 3b319c0953cb..15b1ca9f7a01 100644 --- a/drivers/gpu/drm/i915/selftests/i915_request.c +++ b/drivers/gpu/drm/i915/selftests/i915_request.c @@ -1679,8 +1679,7 @@ static int perf_series_engines(void *arg) p->engine = ps->ce[idx]->engine; intel_engine_pm_get(p->engine); - if (intel_engine_supports_stats(p->engine) && - !intel_enable_engine_stats(p->engine)) + if (intel_engine_supports_stats(p->engine)) p->busy = intel_engine_get_busy_time(p->engine) + 1; p->runtime = -intel_context_get_total_runtime_ns(ce); p->time = ktime_get(); @@ -1700,7 +1699,6 @@ static int perf_series_engines(void *arg) if (p->busy) { p->busy = ktime_sub(intel_engine_get_busy_time(p->engine), p->busy - 1); - intel_disable_engine_stats(p->engine); } err = switch_to_kernel_sync(ce, err); @@ -1762,8 +1760,7 @@ static int p_sync0(void *arg) } busy = false; - if (intel_engine_supports_stats(engine) && - !intel_enable_engine_stats(engine)) { + if (intel_engine_supports_stats(engine)) { p->busy = intel_engine_get_busy_time(engine); busy = true; } @@ -1796,7 +1793,6 @@ static int p_sync0(void *arg) if (busy) { p->busy = ktime_sub(intel_engine_get_busy_time(engine), p->busy); - intel_disable_engine_stats(engine); } err = switch_to_kernel_sync(ce, err); @@ -1830,8 +1826,7 @@ static int p_sync1(void *arg) } busy = false; - if (intel_engine_supports_stats(engine) && - !intel_enable_engine_stats(engine)) { + if (intel_engine_supports_stats(engine)) { p->busy = intel_engine_get_busy_time(engine); busy = true; } @@ -1866,7 +1861,6 @@ static int p_sync1(void *arg) if (busy) { p->busy = ktime_sub(intel_engine_get_busy_time(engine), p->busy); - intel_disable_engine_stats(engine); } err = switch_to_kernel_sync(ce, err); @@ -1899,8 +1893,7 @@ static int p_many(void *arg) } busy = false; - if (intel_engine_supports_stats(engine) && - !intel_enable_engine_stats(engine)) { + if (intel_engine_supports_stats(engine)) { p->busy = intel_engine_get_busy_time(engine); busy = true; } @@ -1924,7 +1917,6 @@ static int p_many(void *arg) if (busy) { p->busy = ktime_sub(intel_engine_get_busy_time(engine), p->busy); - intel_disable_engine_stats(engine); } err = switch_to_kernel_sync(ce, err); |