Piteball/android_kernel_google_msm
1
0
Fork 0
mirror of https://github.com/followmsi/android_kernel_google_msm.git synced 2024-11-06 23:17:41 +00:00
Code Issues Projects Releases Wiki Activity

msm: kgsl: Add a ftrace event for register writes

Browse source 
It is interesting to know when and how we program the hardware so
add a tracepoint to monitor register writes.  Register reads are
not traced since they are done much more frequently and are somewhat
less interesting from a debug perspective.

Change-Id: Ic0dedbad8ee85f154b9ba8731fe2c14603351243
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Sakshi Agrawal <sakshia@codeaurora.org>
This commit is contained in:
Sakshi Agrawal 2013-03-19 12:24:14 -06:00 committed by Iliyan Malchev
parent b654d7af17
commit 2dd2275c0d
2 changed files with 28 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/gpu/msm/adreno.c
View file

@ -30,6 +30,7 @@
#include "kgsl_cffdump.h"
#include "kgsl_sharedmem.h"
#include "kgsl_iommu.h"
#include "kgsl_trace.h"
#include "adreno.h"
#include "adreno_pm4types.h"
@ -2545,6 +2546,8 @@ void adreno_regwrite(struct kgsl_device *device, unsigned int offsetwords,
if (!in_interrupt())
kgsl_pre_hwaccess(device);
trace_kgsl_regwrite(device, offsetwords, value);
kgsl_cffdump_regwrite(device->id, offsetwords << 2, value);
reg = (unsigned int *)(device->reg_virt + (offsetwords << 2));

25
drivers/gpu/msm/kgsl_trace.h
View file

@ -608,6 +608,31 @@ TRACE_EVENT(kgsl_mmu_pagefault,
)
);
TRACE_EVENT(kgsl_regwrite,
TP_PROTO(struct kgsl_device *device, unsigned int offset,
unsigned int value),
TP_ARGS(device, offset, value),
TP_STRUCT__entry(
__string(device_name, device->name)
__field(unsigned int, offset)
__field(unsigned int, value)
),
TP_fast_assign(
__assign_str(device_name, device->name);
__entry->offset = offset;
__entry->value = value;
),
TP_printk(
"d_name=%s reg=%x value=%x",
__get_str(device_name), __entry->offset, __entry->value
)
);
#endif /* _KGSL_TRACE_H */
/* This part must be outside protection */