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drm/i915: Remove second level open-coded rcu work

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We currently use a worker queued from an rcu callback to determine when
a how grace period has elapsed while we remained idle. We use this idle
delay to infer that we will be idle for a while and this is a suitable
point at which we can trim our global memory caches.

Since we wrote that, this mechanism now exists as rcu_work, and having
converted the idle shrinkers over to using that, we can remove our own
variant.

v2: Say goodbye to gt.epoch as well.
v3: Remove the misplaced and redundant comment before parking globals

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/20190228102035.5857-3-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2019-02-28 10:20:35 +00:00
parent 13f1bfd3b3
commit d9948a10b9
3 changed files with 6 additions and 94 deletions
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6
drivers/gpu/drm/i915/i915_debugfs.c
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@@ -2655,8 +2655,7 @@ static int i915_runtime_pm_status(struct seq_file *m, void *unused)
seq_printf(m, "Runtime power status: %s\n",
enableddisabled(!dev_priv->power_domains.wakeref));
seq_printf(m, "GPU idle: %s (epoch %u)\n",
yesno(!dev_priv->gt.awake), dev_priv->gt.epoch);
seq_printf(m, "GPU idle: %s\n", yesno(!dev_priv->gt.awake));
seq_printf(m, "IRQs disabled: %s\n",
yesno(!intel_irqs_enabled(dev_priv)));
#ifdef CONFIG_PM
@@ -3092,8 +3091,7 @@ static int i915_engine_info(struct seq_file *m, void *unused)
wakeref = intel_runtime_pm_get(dev_priv);
seq_printf(m, "GT awake? %s (epoch %u)\n",
yesno(dev_priv->gt.awake), dev_priv->gt.epoch);
seq_printf(m, "GT awake? %s\n", yesno(dev_priv->gt.awake));
seq_printf(m, "Global active requests: %d\n",
dev_priv->gt.active_requests);
seq_printf(m, "CS timestamp frequency: %u kHz\n",