From: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
These tracepoints are useful for observing the creation and
destruction of Full PPGTTs.
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 4 ++++
drivers/gpu/drm/i915/i915_trace.h | 40 +++++++++++++++++++++++++++++++++++++
2 files changed, 44 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index be0aa29..5577e86 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1174,6 +1174,8 @@ i915_ppgtt_create(struct drm_device *dev, struct
drm_i915_file_private *fpriv)
ppgtt->file_priv = fpriv;
+ trace_i915_ppgtt_create(ppgtt);
+
return ppgtt;
}
@@ -1182,6 +1184,8 @@ void i915_ppgtt_release(struct kref *kref)
struct i915_hw_ppgtt *ppgtt =
container_of(kref, struct i915_hw_ppgtt, ref);
+ trace_i915_ppgtt_release(ppgtt);
+
/* vmas should already be unbound */
WARN_ON(!list_empty(&ppgtt->base.active_list));
WARN_ON(!list_empty(&ppgtt->base.inactive_list));
diff --git a/drivers/gpu/drm/i915/i915_trace.h
b/drivers/gpu/drm/i915/i915_trace.h
index f5aa006..ca84c49 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -587,6 +587,46 @@ TRACE_EVENT(intel_gpu_freq_change,
TP_printk("new_freq=%u", __entry->freq)
);
+TRACE_EVENT(i915_ppgtt_create,
+ TP_PROTO(struct i915_hw_ppgtt *ppgtt),
+
+ TP_ARGS(ppgtt),
+
+ TP_STRUCT__entry(
+ __field(struct i915_address_space *, vm)
+ __field(u32, dev)
+ __field(u32, pid)
+ ),
+
+ TP_fast_assign(
+ __entry->vm = &ppgtt->base;
+ __entry->dev = ppgtt->base.dev->primary->index;
+ __entry->pid = (unsigned int)task_pid_nr(current);
+ ),
+
+ TP_printk("dev=%u, task_pid=%u, vm=%p",
+ __entry->dev, __entry->pid, __entry->vm)
+);
+
+TRACE_EVENT(i915_ppgtt_release,
+
+ TP_PROTO(struct i915_hw_ppgtt *ppgtt),
+
+ TP_ARGS(ppgtt),
+
+ TP_STRUCT__entry(
+ __field(struct i915_address_space *, vm)
+ __field(u32, dev)
+ ),
+
+ TP_fast_assign(
+ __entry->vm = &ppgtt->base;
+ __entry->dev = ppgtt->base.dev->primary->index;
+ ),
+
+ TP_printk("dev=%u, vm=%p", __entry->dev, __entry->vm)
+);
+
#endif /* _I915_TRACE_H_ */
/* This part must be outside protection */
--
1.8.5.2
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