linux-kernel - [Patch 5/6] MIPS: Scheduler support for HARDWARE

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Message-ID: <48C8B457.3020308@avtrex.com>
Date:	Wed, 10 Sep 2008 23:01:59 -0700
From:	David Daney <ddaney@...rex.com>
To:	linux-mips@...ux-mips.org
Cc:	linux-kernel@...r.kernel.org
Subject: [Patch 5/6] MIPS: Scheduler support for HARDWARE_WATCHPOINTS.

Scheduler support for HARDWARE_WATCHPOINTS.

Here we hook up the scheduler.  Whenever we switch to a new process,
we check to see if the watch registers should be installed, and do it
if needed.

Signed-off-by: David Daney <ddaney@...rex.com>
---
 include/asm-mips/system.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index a944eda..cd30f83 100644
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -20,6 +20,7 @@
 #include <asm/cmpxchg.h>
 #include <asm/cpu-features.h>
 #include <asm/dsp.h>
+#include <asm/watch.h>
 #include <asm/war.h>

@@ -76,6 +77,7 @@ do {									\
 		__restore_dsp(current);					\
 	if (cpu_has_userlocal)						\
 		write_c0_userlocal(current_thread_info()->tp_value);	\
+	__restore_watch();						\
 } while (0)

 static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
-- 
1.5.5.1

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