[PATCH 1/4] ARM: hw-breakpoint: add mechanism for hooking into prefetch aborts

Russell King - ARM Linux linux at arm.linux.org.uk
Thu Sep 2 06:55:45 EDT 2010


On Mon, Aug 23, 2010 at 04:54:54PM +0100, Will Deacon wrote:
> On ARM processors with hardware breakpoint and watchpoint support,
> triggering these events results in a debug exception. These manifest
> as prefetch and data aborts respectively.
> 
> arch/arm/mm/fault.c already provides hook_fault_code for hooking
> into data aborts dependent on the DFSR. This patch adds a new function,
> hook_ifault_code for hooking into prefetch aborts in the same manner.
> 
> Cc: Russell King - ARM Linux <linux at arm.linux.org.uk>
> Cc: Frederic Weisbecker <fweisbec at gmail.com>
> Cc: S. Karthikeyan <informkarthik at gmail.com>
> Signed-off-by: Will Deacon <will.deacon at arm.com>

Ok.  (please drop my cc: when committing.)



More information about the linux-arm-kernel mailing list