CCS/PROCESSOR-SDK-AM437X: Linux kernel debug with CCS7

Lawrence Lee2

Prodigy 180 points

Part Number: PROCESSOR-SDK-AM437X

Tool/software: Code Composer Studio

I am new to debug Linux kernel and is there a way to display/dump the content of MMU and the TLB in ARM AM437x?

Can it be done via CCS7 with JTAG connected emulator (XDS2xx)? Or by other means (script with gel file)?

Can CCS7 also help to display the page table(s) when a breakpoint is hit inside the Linux Kernel?

over 8 years ago

0 desouza over 8 years ago

TI__Guru**** 171729 points

Hi,

CCS is capable of displaying the MMU page table configurations in an active JTAG debug session. Please check the short clip below:
https://youtu.be/-txegVCHm8Y

Hope this helps,
Rafael

0 Lawrence Lee2 over 8 years ago in reply to desouza

Prodigy 180 points

Thank you for the prompt reply.

It is kind of what I am looking for, but not completely.

I need to know how a physical address get mapped with cache attributed(i.e. cached, cached with writethrough, or cache invalidated).

Also, I need to know what virtual address range mapped to this physical address in this page table.

Is there an easy way to display what I wanted?

0 Lawrence Lee2 over 8 years ago in reply to Lawrence Lee2

Prodigy 180 points

BTW, what are the text in RED means?

TTBR0 Base Address = 0x80004000
Min VA = 0x0
Max VA = 0xffffffff
= >
Type = L1 Section
Index = 0xec0
Min VA = 0xec000000
Min PA = 0x18000000
Region Size = 0x100000
S = 0x1
AP[1:0] = 0x1
nG = 0x0
AP[2] = 0x0
NS = 0x0
TEX[2:0] = 0x1
XN = 0x1
Domain[3:0] = 0x2

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CCS/PROCESSOR-SDK-AM437X: Linux kernel debug with CCS7