Architectures and Processors forum Hi, I am new at arm processor. I need to perform possible kernel level optimizations to the code which I already have. Can anyone suggest the possible methods, Is it possible to access the physical memory directly at kernel level? will it help?

State Not Answered
Locked Locked
Replies 2 replies
Subscribers 350 subscribers
Views 1870 views
Users 0 members are here

Options

Related

How was your experience today?

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Hi, I am new at arm processor. I need to perform possible kernel level optimizations to the code which I already have. Can anyone suggest the possible methods, Is it possible to access the physical memory directly at kernel level? will it help?

123@123 over 3 years ago

need arm cortex a7 kernel level optimization methods.

Can we access physical memory directly ?

Do we need to disable MMU to access physical memory ? will caches be available if MMU disabled?

Top replies

42Bastian Schick over 3 years ago +1

Not enough info: Which Kernel? Windows, macOS, Linux, BSD, Fuchsia, RTOS? 123@123 said: will caches be available if MMU disabled? Please read the Cortex-A reference manual.

0 42Bastian Schick over 3 years ago

Not enough info: Which Kernel? Windows, macOS, Linux, BSD, Fuchsia, RTOS?

123@123 said:
will caches be available if MMU disabled?

Please read the Cortex-A reference manual.
Cancel
Up +1 Down

Cancel
0 Hectors over 3 years ago

faced similar problem..

Help !!

mcdvoice
Cancel
Up 0 Down

Cancel