tree 7255a4a2b873a0c3daf7b312a0845202edf6b2d5
parent a8190a59e7440a7e3f7c0889d72a13e157988b3c
author Michael Neuling <mikey@neuling.org> 1356012404 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1357797704 +1100

powerpc: Hardware breakpoints rewrite to handle non DABR breakpoint registers

This is a rewrite so that we don't assume we are using the DABR throughout the
code.  We now use the arch_hw_breakpoint to store the breakpoint in a generic
manner in the thread_struct, rather than storing the raw DABR value.

The ptrace GET/SET_DEBUGREG interface currently passes the raw DABR in from
userspace.  We keep this functionality, so that future changes (like the POWER8
DAWR), will still fake the DABR to userspace.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>