Git info needed

Hi All,

I want Info about how to get patches from private Git.
I have downloaded Catalin Marinas git(ARM). I want to know check to
support ARM 15 how many patches are added, so that we can analysis the
difference.
http://git.kernel.org/?p=linux/kernel/git/cmarinas/linux-arm-arch.git;a=summary

1. I want to extract the patches. what command I will use for it with
reference to linus torvalds git.

2. Also If i want to see on kernel version 3.1 which all patches are
added by catalin to make it work for ARM 15, How can I know.


Thanks a lot.
Regards