* [RFC][PATCH v1 05/15] perf: export tracepoint events via sysfs: i915
@ 2010-07-22 11:13 Lin Ming
0 siblings, 0 replies; only message in thread
From: Lin Ming @ 2010-07-22 11:13 UTC (permalink / raw)
To: Ingo Molnar, Dave Airlie
Cc: Robert Richter, Corey Ashford, Johannes Berg, Peter Zijlstra,
Greg KH, Frederic Weisbecker, Paul Mundt, eranian,
Gary.Mohr@Bull.com, arjan, Zhang, Yanmin, Paul Mackerras,
David S. Miller, Russell King, Arnaldo Carvalho de Melo,
Will Deacon, Maynard Johnson, Carl Love, Kay Sievers, lkml,
Thomas Gleixner, Steven Rostedt
i915 tracepoint events are exported like below,
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/events
|-- i915_gem_object_bind
| |-- config
| |-- type
|-- i915_gem_object_change_domain
| |-- config
| |-- type
....
....
---
drivers/gpu/drm/i915/i915_drv.c | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 423dc90..185b502 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -28,6 +28,7 @@
*/
#include <linux/device.h>
+#include <linux/perf_event.h>
#include "drmP.h"
#include "drm.h"
#include "i915_drm.h"
@@ -413,7 +414,17 @@ int i965_reset(struct drm_device *dev, u8 flags)
static int __devinit
i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
- return drm_get_dev(pdev, ent, &driver);
+ struct drm_device *drm_dev;
+ int ret;
+
+ ret = drm_get_dev(pdev, ent, &driver);
+
+ if (!ret) {
+ drm_dev = pci_get_drvdata(pdev);
+ perf_sys_add_tp(&drm_dev->primary->kdev.kobj, "i915");
+ }
+
+ return ret;
}
static void
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2010-07-22 11:13 [RFC][PATCH v1 05/15] perf: export tracepoint events via sysfs: i915 Lin Ming
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