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powerpc/booke: Clean up the hardware watchpoint support

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* CONFIG_BOOKE is selected by CONFIG_44x so we dont need both
* Fixed a few comments
* Go back to only using DBCR0_IDM to determine if we are using
  debug resources.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2008-07-26 05:27:33 +10:00
committed by Benjamin Herrenschmidt
parent d3b060231b
commit 2325f0a0c3
4 changed files with 12 additions and 11 deletions
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arch/powerpc/kernel/signal.c
+1 -1
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@@ -147,7 +147,7 @@ int do_signal(sigset_t *oldset, struct pt_regs *regs)
*/
if (current->thread.dabr) {
set_dabr(current->thread.dabr);
#if defined(CONFIG_44x) || defined(CONFIG_BOOKE)
#if defined(CONFIG_BOOKE)
mtspr(SPRN_DBCR0, current->thread.dbcr0);
#endif
}