Hi,
I am new to kernel programming. Last few days i have been reading about memory management, memory mapping etc.,
But i could not put the things together.
Here i need clarifications regarding the few things whether wat i understood is right or not.
1) Mapping means bringing a device memory which is not in the address space of kernel/user to its address space.
ioremap() :
2) ioremap does mapping of a particular i/o device to kernel logical memory address.
mmap()
3) mmap does the mapping of a device memory to user space virtual address.
kmap()
4) gets a kernel virtual address of an allocated high memory page.
5) And finally memory mapping does a manipulation of a PTE.
Tell if i have interpreted anything wrong and please correct me.
Thank you
--
With regards,
Sandeep Kumar Anantapalli,
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