linux-kernel - [PATCH] (2.6.20-rt3) PowerPC: convert spinlocks into raw

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Date:	Tue, 6 Feb 2007 20:26:40 +0300
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	mingo@...e.hu
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	dwalker@...sta.com, mgreer@...sta.com
Subject: [PATCH] (2.6.20-rt3) PowerPC: convert spinlocks into raw

Convert the spinlocks in the PowerPC interrupt related code into the raw ones,
also convert the PURR and PMC related spinlocks...

Signed-off-by: Mark A. Greer <mgreer@...sta.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@...mvista.com>

Index: linux-2.6/arch/powerpc/kernel/irq.c
===================================================================
--- linux-2.6.orig/arch/powerpc/kernel/irq.c
+++ linux-2.6/arch/powerpc/kernel/irq.c
@@ -392,7 +392,7 @@ EXPORT_SYMBOL(do_softirq);
 #ifdef CONFIG_PPC_MERGE
 
 static LIST_HEAD(irq_hosts);
-static spinlock_t irq_big_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_RAW_SPINLOCK(irq_big_lock);
 static DEFINE_PER_CPU(unsigned int, irq_radix_reader);
 static unsigned int irq_radix_writer;
 struct irq_map_entry irq_map[NR_IRQS];
Index: linux-2.6/arch/powerpc/kernel/pmc.c
===================================================================
--- linux-2.6.orig/arch/powerpc/kernel/pmc.c
+++ linux-2.6/arch/powerpc/kernel/pmc.c
@@ -52,7 +52,7 @@ static void dummy_perf(struct pt_regs *r
 }
 #endif
 
-static DEFINE_SPINLOCK(pmc_owner_lock);
+static DEFINE_RAW_SPINLOCK(pmc_owner_lock);
 static void *pmc_owner_caller; /* mostly for debugging */
 perf_irq_t perf_irq = dummy_perf;
 
Index: linux-2.6/arch/powerpc/kernel/time.c
===================================================================
--- linux-2.6.orig/arch/powerpc/kernel/time.c
+++ linux-2.6/arch/powerpc/kernel/time.c
@@ -223,7 +223,7 @@ struct cpu_purr_data {
 	int	initialized;			/* thread is running */
 	u64	tb;			/* last TB value read */
 	u64	purr;			/* last PURR value read */
-	spinlock_t lock;
+	raw_spinlock_t lock;
 };
 
 static DEFINE_PER_CPU(struct cpu_purr_data, cpu_purr_data);
Index: linux-2.6/arch/powerpc/sysdev/i8259.c
===================================================================
--- linux-2.6.orig/arch/powerpc/sysdev/i8259.c
+++ linux-2.6/arch/powerpc/sysdev/i8259.c
@@ -23,7 +23,7 @@ static unsigned char cached_8259[2] = { 
 #define cached_A1 (cached_8259[0])
 #define cached_21 (cached_8259[1])
 
-static DEFINE_SPINLOCK(i8259_lock);
+static DEFINE_RAW_SPINLOCK(i8259_lock);
 
 static struct device_node *i8259_node;
 static struct irq_host *i8259_host;
Index: linux-2.6/arch/powerpc/sysdev/ipic.c
===================================================================
--- linux-2.6.orig/arch/powerpc/sysdev/ipic.c
+++ linux-2.6/arch/powerpc/sysdev/ipic.c
@@ -30,7 +30,7 @@
 #include "ipic.h"
 
 static struct ipic * primary_ipic;
-static DEFINE_SPINLOCK(ipic_lock);
+static DEFINE_RAW_SPINLOCK(ipic_lock);
 
 static struct ipic_info ipic_info[] = {
 	[9] = {
Index: linux-2.6/arch/powerpc/sysdev/mpic.c
===================================================================
--- linux-2.6.orig/arch/powerpc/sysdev/mpic.c
+++ linux-2.6/arch/powerpc/sysdev/mpic.c
@@ -44,7 +44,7 @@
 
 static struct mpic *mpics;
 static struct mpic *mpic_primary;
-static DEFINE_SPINLOCK(mpic_lock);
+static DEFINE_RAW_SPINLOCK(mpic_lock);
 
 #ifdef CONFIG_PPC32	/* XXX for now */
 #ifdef CONFIG_IRQ_ALL_CPUS
Index: linux-2.6/include/asm-powerpc/mpic.h
===================================================================
--- linux-2.6.orig/include/asm-powerpc/mpic.h
+++ linux-2.6/include/asm-powerpc/mpic.h
@@ -279,7 +279,7 @@ struct mpic
 #ifdef CONFIG_MPIC_BROKEN_U3
 	/* The fixup table */
 	struct mpic_irq_fixup	*fixups;
-	spinlock_t		fixup_lock;
+	raw_spinlock_t		fixup_lock;
 #endif
 
 	/* Register access method */

-
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