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drm/xe/pm: Add trace for pm functions

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Add trace for xe pm function for better debuggability.

v2: Fix indentation and add trace for xe_pm_runtime_get_ioctl

Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240717125950.9952-1-nirmoy.das@intel.com
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
This commit is contained in:
Nirmoy Das 2024-07-17 14:59:50 +02:00
parent 775d0adc01
commit 275aa53f59
2 changed files with 60 additions and 0 deletions
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8
drivers/gpu/drm/xe/xe_pm.c
View File

@ -20,6 +20,7 @@
#include "xe_guc.h"
#include "xe_irq.h"
#include "xe_pcode.h"
#include "xe_trace.h"
#include "xe_wa.h"
/**
@ -87,6 +88,7 @@ int xe_pm_suspend(struct xe_device *xe)
int err;
drm_dbg(&xe->drm, "Suspending device\n");
trace_xe_pm_suspend(xe, __builtin_return_address(0));
for_each_gt(gt, xe, id)
xe_gt_suspend_prepare(gt);
@ -131,6 +133,7 @@ int xe_pm_resume(struct xe_device *xe)
int err;
drm_dbg(&xe->drm, "Resuming device\n");
trace_xe_pm_resume(xe, __builtin_return_address(0));
for_each_tile(tile, xe, id)
xe_wa_apply_tile_workarounds(tile);
@ -326,6 +329,7 @@ int xe_pm_runtime_suspend(struct xe_device *xe)
u8 id;
int err = 0;
trace_xe_pm_runtime_suspend(xe, __builtin_return_address(0));
/* Disable access_ongoing asserts and prevent recursive pm calls */
xe_pm_write_callback_task(xe, current);
@ -399,6 +403,7 @@ int xe_pm_runtime_resume(struct xe_device *xe)
u8 id;
int err = 0;
trace_xe_pm_runtime_resume(xe, __builtin_return_address(0));
/* Disable access_ongoing asserts and prevent recursive pm calls */
xe_pm_write_callback_task(xe, current);
@ -463,6 +468,7 @@ static void pm_runtime_lockdep_prime(void)
*/
void xe_pm_runtime_get(struct xe_device *xe)
{
trace_xe_pm_runtime_get(xe, __builtin_return_address(0));
pm_runtime_get_noresume(xe->drm.dev);
if (xe_pm_read_callback_task(xe) == current)
@ -478,6 +484,7 @@ void xe_pm_runtime_get(struct xe_device *xe)
*/
void xe_pm_runtime_put(struct xe_device *xe)
{
trace_xe_pm_runtime_put(xe, __builtin_return_address(0));
if (xe_pm_read_callback_task(xe) == current) {
pm_runtime_put_noidle(xe->drm.dev);
} else {
@ -495,6 +502,7 @@ void xe_pm_runtime_put(struct xe_device *xe)
*/
int xe_pm_runtime_get_ioctl(struct xe_device *xe)
{
trace_xe_pm_runtime_get_ioctl(xe, __builtin_return_address(0));
if (WARN_ON(xe_pm_read_callback_task(xe) == current))
return -ELOOP;

52
drivers/gpu/drm/xe/xe_trace.h
View File

@ -369,6 +369,58 @@ TRACE_EVENT(xe_reg_rw,
(u32)(__entry->val >> 32))
);
DECLARE_EVENT_CLASS(xe_pm_runtime,
TP_PROTO(struct xe_device *xe, void *caller),
TP_ARGS(xe, caller),
TP_STRUCT__entry(
__string(dev, __dev_name_xe(xe))
__field(void *, caller)
),
TP_fast_assign(
__assign_str(dev);
__entry->caller = caller;
),
TP_printk("dev=%s caller_function=%pS", __get_str(dev), __entry->caller)
);
DEFINE_EVENT(xe_pm_runtime, xe_pm_runtime_get,
TP_PROTO(struct xe_device *xe, void *caller),
TP_ARGS(xe, caller)
);
DEFINE_EVENT(xe_pm_runtime, xe_pm_runtime_put,
TP_PROTO(struct xe_device *xe, void *caller),
TP_ARGS(xe, caller)
);
DEFINE_EVENT(xe_pm_runtime, xe_pm_resume,
TP_PROTO(struct xe_device *xe, void *caller),
TP_ARGS(xe, caller)
);
DEFINE_EVENT(xe_pm_runtime, xe_pm_suspend,
TP_PROTO(struct xe_device *xe, void *caller),
TP_ARGS(xe, caller)
);
DEFINE_EVENT(xe_pm_runtime, xe_pm_runtime_resume,
TP_PROTO(struct xe_device *xe, void *caller),
TP_ARGS(xe, caller)
);
DEFINE_EVENT(xe_pm_runtime, xe_pm_runtime_suspend,
TP_PROTO(struct xe_device *xe, void *caller),
TP_ARGS(xe, caller)
);
DEFINE_EVENT(xe_pm_runtime, xe_pm_runtime_get_ioctl,
TP_PROTO(struct xe_device *xe, void *caller),
TP_ARGS(xe, caller)
);
#endif
/* This part must be outside protection */