example user can jump to list x only after list y is
configured and enabled. The format for entering all
types of instructions are explained in examples as
- follows.
- Example:
- i)Read Type Instruction
+ follows:
+
+ i) Read Type Instruction
+
echo R <1> <2> <3> >/sys/kernel/debug/dcc/../[list-number]/config
+
1->Address to be considered for reading the value.
+
2->The word count of the addresses, read n words
starting from address <1>. Each word is of 32 bits.
If not entered 1 is considered.
+
3->Can be 'apb' or 'ahb' which indicates if it is apb or ahb
bus respectively. If not entered ahb is considered.
- ii)Write Type Instruction
- echo W <1> <2> <3> > /sys/kernel/debug/dcc/../[list-number]/config
- 1->Address to be considered for writing the value.
- 2->The value that needs to be written at the location.
- 3->Can be a 'apb' or 'ahb' which indicates if it is apb or ahb
- but respectively.
- iii)Read Modify Write type instruction
- echo RW <1> <2> <3> > /sys/kernel/debug/dcc/../[list-number]/config
- 1->The address which needs to be considered for read then write.
- 2->The value that needs to be written on the address.
- 3->The mask of the value to be written.
- iv)Loop Type Instruction
- echo L <1> <2> <3> > /sys/kernel/debug/dcc/../[list-number]/config
- 1->The loop count, the number of times the value of the addresses will be
- captured.
- 2->The address count, total number of addresses to be entered in this
- instruction.
- 3->The series of addresses to be entered separated by a space like <addr1>
- <addr2>... and so on.
+
+ ii) Write Type Instruction
+
+ echo W <1> <2> <3> > /sys/kernel/debug/dcc/../[list-number]/config
+
+ 1->Address to be considered for writing the value.
+
+ 2->The value that needs to be written at the location.
+
+ 3->Can be a 'apb' or 'ahb' which indicates if it is apb or ahb
+ but respectively.
+
+ iii) Read Modify Write type instruction
+
+ echo RW <1> <2> <3> > /sys/kernel/debug/dcc/../[list-number]/config
+
+ 1->The address which needs to be considered for read then write.
+
+ 2->The value that needs to be written on the address.
+
+ 3->The mask of the value to be written.
+
+ iv) Loop Type Instruction
+
+ echo L <1> <2> <3> > /sys/kernel/debug/dcc/../[list-number]/config
+
+ 1->The loop count, the number of times the value of the addresses will be
+ captured.
+
+ 2->The address count, total number of addresses to be entered in this
+ instruction.
+
+ 3->The series of addresses to be entered separated by a space like <addr1>
+ <addr2>... and so on.
What: /sys/kernel/debug/dcc/.../[list-number]/enable
Date: December 2022