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

You could just run a test, just mmap a file with different offsets and see which fail. Might be annoying in a kernel module though, but maybe there is some other test like that you could use.