tree 7dda6fa6262aa362175ffdb976da01d9aa7e0e68
parent e9e961c9a818a2f24711af493b907a8e40a69efc
author Dave Kleikamp <shaggy@linux.vnet.ibm.com> 1247060778 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1247643705 +1000

powerpc: Fix booke user_disable_single_step()

On booke processors, gdb is seeing spurious SIGTRAPs when setting a
watchpoint.

user_disable_single_step() simply quits when the DAC is non-zero.  It should
be clearing the DBCR0_IC and DBCR0_BT bits from the dbcr0 register and
TIF_SINGLESTEP from the thread flag.

Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>