How to get linux kernel page size programmatically

Question

I am working on a Linux module for IA64. My current problem is that the driver uses the PAGE_SIZE and PAGE_SHIFT macros for dma page allocation. The problem I am having is tha

Answer 1

One way to find the page size is to obtain it from smaps for a process.

For example:

cd /proc/1
grep -i pagesize smaps

KernelPageSize:        4 kB
MMUPageSize:           4 kB