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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2009-08-25 10:15:50 (GMT) |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2009-09-23 00:05:21 (GMT) |
| commit | 1c5d22f76dc721f3acb7a3dadc657a221e487fb7 (patch) | |
| tree | 99a69f1be4f10d1e38af2c5ece4b5905f7a5701a /drivers/gpu/drm/i915/i915_trace_points.c | |
| parent | 74dff282237ea8c0a5df1afd8526eac4b6cee063 (diff) | |
| download | linux-fsl-qoriq-1c5d22f76dc721f3acb7a3dadc657a221e487fb7.tar.xz | |
drm/i915: Add tracepoints
By adding tracepoint equivalents for WATCH_BUF/EXEC we are able to monitor
the lifetimes of objects, requests and significant events. These events can
then be probed using the tracing frameworks, such as systemtap and, in
particular, perf.
For example to record the stack trace for every GPU stall during a run, use
$ perf record -e i915:i915_gem_request_wait_begin -c 1 -g
And
$ perf report
to view the results.
[Updated to fix compilation issues caused.]
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Ben Gamari <bgamari@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_trace_points.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_trace_points.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_trace_points.c b/drivers/gpu/drm/i915/i915_trace_points.c new file mode 100644 index 0000000..ead876e --- /dev/null +++ b/drivers/gpu/drm/i915/i915_trace_points.c @@ -0,0 +1,11 @@ +/* + * Copyright © 2009 Intel Corporation + * + * Authors: + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +#include "i915_drv.h" + +#define CREATE_TRACE_POINTS +#include "i915_trace.h" |