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authorLuis Machado <luisgpm@linux.vnet.ibm.com>2008-07-24 02:10:41 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-25 15:44:39 +1000
commitd6a61bfc06d6f2248f3e75f208d64e794082013c (patch)
treed46aec6b68e30f9d7d9198bd9102fcf1c054ab7e /include/asm-powerpc
parent00bf6e906156b07cd641fe154ad0efe78f989692 (diff)
downloadop-kernel-dev-d6a61bfc06d6f2248f3e75f208d64e794082013c.zip
op-kernel-dev-d6a61bfc06d6f2248f3e75f208d64e794082013c.tar.gz
powerpc: BookE hardware watchpoint support
This patch implements support for HW based watchpoint via the DBSR_DAC (Data Address Compare) facility of the BookE processors. It does so by interfacing with the existing DABR breakpoint code and adding the necessary bits and pieces for the new bits to be properly set or cleared Signed-off-by: Luis Machado <luisgpm@br.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/system.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-powerpc/system.h b/include/asm-powerpc/system.h
index e6e25e2..d6648c143 100644
--- a/include/asm-powerpc/system.h
+++ b/include/asm-powerpc/system.h
@@ -110,6 +110,8 @@ static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }
#endif
extern int set_dabr(unsigned long dabr);
+extern void do_dabr(struct pt_regs *regs, unsigned long address,
+ unsigned long error_code);
extern void print_backtrace(unsigned long *);
extern void show_regs(struct pt_regs * regs);
extern void flush_instruction_cache(void);
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