Merge commit 'origin/master'

Manual merge of:

	arch/powerpc/Kconfig
	arch/powerpc/kernel/stacktrace.c
	arch/powerpc/mm/slice.c
	arch/ppc/kernel/smp.c

4 files changed, 48 insertions, 51 deletions

diff --git a/arch/mips/sgi-ip22/ip22-mc.c b/arch/mips/sgi-ip22/ip22-mc.c
index 3f35d6367be..5268ac187bb 100644
--- a/arch/mips/sgi-ip22/ip22-mc.c
+++ b/arch/mips/sgi-ip22/ip22-mc.c
@@ -208,4 +208,30 @@ void __init sgimc_init(void)
 void __init prom_meminit(void) {}
 void __init prom_free_prom_memory(void)
 {
+#ifdef CONFIG_SGI_IP28
+	u32 mconfig1;
+	unsigned long flags;
+	spinlock_t lock;
+
+	/*
+	 * because ARCS accesses memory uncached we wait until ARCS
+	 * isn't needed any longer, before we switch from slow to
+	 * normal mode
+	 */
+	spin_lock_irqsave(&lock, flags);
+	mconfig1 = sgimc->mconfig1;
+	/* map ECC register */
+	sgimc->mconfig1 = (mconfig1 & 0xffff0000) | 0x2060;
+	iob();
+	/* switch to normal mode */
+	*(unsigned long *)PHYS_TO_XKSEG_UNCACHED(0x60000000) = 0;
+	iob();
+	/* reduce WR_COL */
+	sgimc->cmacc = (sgimc->cmacc & ~0xf) | 4;
+	iob();
+	/* restore old config */
+	sgimc->mconfig1 = mconfig1;
+	iob();
+	spin_unlock_irqrestore(&lock, flags);
+#endif
 }
diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c
index 28ffec8e5d1..fc6df96305e 100644
--- a/arch/mips/sgi-ip22/ip22-platform.c
+++ b/arch/mips/sgi-ip22/ip22-platform.c
@@ -175,3 +175,21 @@ static int __init sgiseeq_devinit(void)
 }
 
 device_initcall(sgiseeq_devinit);
+
+static int __init sgi_hal2_devinit(void)
+{
+	return IS_ERR(platform_device_register_simple("sgihal2", 0, NULL, 0));
+}
+
+device_initcall(sgi_hal2_devinit);
+
+static int __init sgi_button_devinit(void)
+{
+	if (ip22_is_fullhouse())
+		return 0; /* full house has no volume buttons */
+
+	return IS_ERR(platform_device_register_simple("sgiindybtns",
+						      -1, NULL, 0));
+}
+
+device_initcall(sgi_button_devinit);
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index a435b31cf03..4ad5c3393fd 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -39,7 +39,7 @@
 #define POWERDOWN_FREQ		(HZ / 4)
 #define PANIC_FREQ		(HZ / 8)
 
-static struct timer_list power_timer, blink_timer, debounce_timer, volume_timer;
+static struct timer_list power_timer, blink_timer, debounce_timer;
 
 #define MACHINE_PANICED		1
 #define MACHINE_SHUTTING_DOWN	2
@@ -139,36 +139,6 @@ static inline void power_button(void)
 	add_timer(&power_timer);
 }
 
-void (*indy_volume_button)(int) = NULL;
-
-EXPORT_SYMBOL(indy_volume_button);
-
-static inline void volume_up_button(unsigned long data)
-{
-	del_timer(&volume_timer);
-
-	if (indy_volume_button)
-		indy_volume_button(1);
-
-	if (sgint->istat1 & SGINT_ISTAT1_PWR) {
-		volume_timer.expires = jiffies + (HZ / 100);
-		add_timer(&volume_timer);
-	}
-}
-
-static inline void volume_down_button(unsigned long data)
-{
-	del_timer(&volume_timer);
-
-	if (indy_volume_button)
-		indy_volume_button(-1);
-
-	if (sgint->istat1 & SGINT_ISTAT1_PWR) {
-		volume_timer.expires = jiffies + (HZ / 100);
-		add_timer(&volume_timer);
-	}
-}
-
 static irqreturn_t panel_int(int irq, void *dev_id)
 {
 	unsigned int buttons;
@@ -190,25 +160,8 @@ static irqreturn_t panel_int(int irq, void *dev_id)
 	 * House. Only lowest 2 bits are used. Guiness uses upper four bits
 	 * for volume control". This is not true, all bits are pulled high
 	 * on fullhouse */
-	if (ip22_is_fullhouse() || !(buttons & SGIOC_PANEL_POWERINTR)) {
+	if (!(buttons & SGIOC_PANEL_POWERINTR))
 		power_button();
-		return IRQ_HANDLED;
-	}
-	/* TODO: mute/unmute */
-	/* Volume up button was pressed */
-	if (!(buttons & SGIOC_PANEL_VOLUPINTR)) {
-		init_timer(&volume_timer);
-		volume_timer.function = volume_up_button;
-		volume_timer.expires = jiffies + (HZ / 100);
-		add_timer(&volume_timer);
-	}
-	/* Volume down button was pressed */
-	if (!(buttons & SGIOC_PANEL_VOLDNINTR)) {
-		init_timer(&volume_timer);
-		volume_timer.function = volume_down_button;
-		volume_timer.expires = jiffies + (HZ / 100);
-		add_timer(&volume_timer);
-	}
 
 	return IRQ_HANDLED;
 }
diff --git a/arch/mips/sgi-ip22/ip28-berr.c b/arch/mips/sgi-ip22/ip28-berr.c
index 30e12e2ec4b..fee7a2e0e53 100644
--- a/arch/mips/sgi-ip22/ip28-berr.c
+++ b/arch/mips/sgi-ip22/ip28-berr.c
@@ -412,7 +412,7 @@ static int ip28_be_interrupt(const struct pt_regs *regs)
 	 * Now we have an asynchronous bus error, speculatively or DMA caused.
 	 * Need to search all DMA descriptors for the error address.
 	 */
-	for (i = 0; i < sizeof(hpc3)/sizeof(struct hpc3_stat); ++i) {
+	for (i = 0; i < ARRAY_SIZE(hpc3); ++i) {
 		struct hpc3_stat *hp = (struct hpc3_stat *)&hpc3 + i;
 		if ((cpu_err_stat & CPU_ERRMASK) &&
 		    (cpu_err_addr == hp->ndptr || cpu_err_addr == hp->cbp))
@@ -421,7 +421,7 @@ static int ip28_be_interrupt(const struct pt_regs *regs)
 		    (gio_err_addr == hp->ndptr || gio_err_addr == hp->cbp))
 			break;
 	}
-	if (i < sizeof(hpc3)/sizeof(struct hpc3_stat)) {
+	if (i < ARRAY_SIZE(hpc3)) {
 		struct hpc3_stat *hp = (struct hpc3_stat *)&hpc3 + i;
 		printk(KERN_ERR "at DMA addresses: HPC3 @ %08lx:"
 		       " ctl %08x, ndp %08x, cbp %08x\n",