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Code Issues Releases Wiki Activity

drm/i915/trace: add hw_id to gem requests trace points

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When monitoring the GPU with i915 perf, reports are tagged with a hw
id. Gem context creation tracepoints already have a hw_id field,
unfortunately you only get this correlation between a process id and a
hw context id once when the context is created. It doesn't help if you
started monitoring after the process was initialized or if the drm fd
was transfered from one process to another.

This change adds the hw_id field to gem requests, so that correlation
can also be done on submission.

v2: Place hw_id at the end of the tracepoint to not disrupt too much
    existing tools (Chris)

v3: Reorder hw_id field again (Chris)

v4: Add missing hw_id to i915_gem_request_wait_begin tracepoint (Chris)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20171218151959.14073-3-lionel.g.landwerlin@intel.com
This commit is contained in:
Lionel Landwerlin 2017-12-18 15:19:59 +00:00
parent 3c2d06714d
commit 151a99ec77
1 changed files with 22 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

36
drivers/gpu/drm/i915/i915_trace.h
View file

@ -616,6 +616,7 @@ TRACE_EVENT(i915_gem_request_queue,
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, hw_id)
__field(u32, ring)
__field(u32, ctx)
__field(u32, seqno)
@ -624,15 +625,16 @@ TRACE_EVENT(i915_gem_request_queue,
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->hw_id = req->ctx->hw_id;
__entry->ring = req->engine->id;
__entry->ctx = req->fence.context;
__entry->seqno = req->fence.seqno;
__entry->flags = flags;
),
TP_printk("dev=%u, ring=%u, ctx=%u, seqno=%u, flags=0x%x",
__entry->dev, __entry->ring, __entry->ctx, __entry->seqno,
__entry->flags)
TP_printk("dev=%u, hw_id=%u, ring=%u, ctx=%u, seqno=%u, flags=0x%x",
__entry->dev, __entry->hw_id, __entry->ring, __entry->ctx,
__entry->seqno, __entry->flags)
);
DECLARE_EVENT_CLASS(i915_gem_request,
@ -641,6 +643,7 @@ DECLARE_EVENT_CLASS(i915_gem_request,
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, hw_id)
__field(u32, ring)
__field(u32, ctx)
__field(u32, seqno)
@ -649,15 +652,16 @@ DECLARE_EVENT_CLASS(i915_gem_request,
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->hw_id = req->ctx->hw_id;
__entry->ring = req->engine->id;
__entry->ctx = req->fence.context;
__entry->seqno = req->fence.seqno;
__entry->global = req->global_seqno;
),
TP_printk("dev=%u, ring=%u, ctx=%u, seqno=%u, global=%u",
__entry->dev, __entry->ring, __entry->ctx, __entry->seqno,
__entry->global)
TP_printk("dev=%u, hw_id=%u, ring=%u, ctx=%u, seqno=%u, global=%u",
__entry->dev, __entry->hw_id, __entry->ring, __entry->ctx,
__entry->seqno, __entry->global)
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_add,
@ -683,6 +687,7 @@ DECLARE_EVENT_CLASS(i915_gem_request_hw,
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, hw_id)
__field(u32, ring)
__field(u32, ctx)
__field(u32, seqno)
@ -692,6 +697,7 @@ DECLARE_EVENT_CLASS(i915_gem_request_hw,
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->hw_id = req->ctx->hw_id;
__entry->ring = req->engine->id;
__entry->ctx = req->fence.context;
__entry->seqno = req->fence.seqno;
@ -699,10 +705,10 @@ DECLARE_EVENT_CLASS(i915_gem_request_hw,
__entry->port = port;
),
TP_printk("dev=%u, ring=%u, ctx=%u, seqno=%u, global=%u, port=%u",
__entry->dev, __entry->ring, __entry->ctx,
__entry->seqno, __entry->global_seqno,
__entry->port)
TP_printk("dev=%u, hw_id=%u, ring=%u, ctx=%u, seqno=%u, global=%u, port=%u",
__entry->dev, __entry->hw_id, __entry->ring,
__entry->ctx, __entry->seqno,
__entry->global_seqno, __entry->port)
);
DEFINE_EVENT(i915_gem_request_hw, i915_gem_request_in,
@ -772,6 +778,7 @@ TRACE_EVENT(i915_gem_request_wait_begin,
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, hw_id)
__field(u32, ring)
__field(u32, ctx)
__field(u32, seqno)
@ -787,6 +794,7 @@ TRACE_EVENT(i915_gem_request_wait_begin,
*/
TP_fast_assign(
__entry->dev = req->i915->drm.primary->index;
__entry->hw_id = req->ctx->hw_id;
__entry->ring = req->engine->id;
__entry->ctx = req->fence.context;
__entry->seqno = req->fence.seqno;
@ -794,10 +802,10 @@ TRACE_EVENT(i915_gem_request_wait_begin,
__entry->flags = flags;
),
TP_printk("dev=%u, ring=%u, ctx=%u, seqno=%u, global=%u, blocking=%u, flags=0x%x",
__entry->dev, __entry->ring, __entry->ctx, __entry->seqno,
__entry->global, !!(__entry->flags & I915_WAIT_LOCKED),
__entry->flags)
TP_printk("dev=%u, hw_id=%u, ring=%u, ctx=%u, seqno=%u, global=%u, blocking=%u, flags=0x%x",
__entry->dev, __entry->hw_id, __entry->ring, __entry->ctx,
__entry->seqno, __entry->global,
!!(__entry->flags & I915_WAIT_LOCKED), __entry->flags)
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_wait_end,