Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (62 commits)
  powerpc/85xx: Fix signedness bug in cache-sram
  powerpc/fsl: 85xx: document cache sram bindings
  powerpc/fsl: define binding for fsl mpic interrupt controllers
  powerpc/fsl_msi: Handle msi-available-ranges better
  drivers/serial/ucc_uart.c: Add of_node_put to avoid memory leak
  powerpc/85xx: Fix SPE float to integer conversion failure
  powerpc/85xx: Update sata controller compatible for p1022ds board
  ATA: Add FSL sata v2 controller support
  powerpc/mpc8xxx_gpio: simplify searching for 'fsl, qoriq-gpio' compatiable
  powerpc/8xx: remove obsolete mgsuvd board
  powerpc/82xx: rename and update mgcoge board support
  powerpc/83xx: rename and update kmeter1
  powerpc/85xx: Workaroudn e500 CPU erratum A005
  powerpc/fsl_pci: Add support for FSL PCIe controllers v2.x
  powerpc/85xx: Fix writing to spin table 'cpu-release-addr' on ppc64e
  powerpc/pseries: Disable MSI using new interface if possible
  powerpc: Enable GENERIC_HARDIRQS_NO_DEPRECATED.
  powerpc: core irq_data conversion.
  powerpc: sysdev/xilinx_intc irq_data conversion.
  powerpc: sysdev/uic irq_data conversion.
  ...

Fix up conflicts in arch/powerpc/sysdev/fsl_msi.c (due to getting rid of
of_platform_driver in arch/powerpc)

6 files changed, 85 insertions, 49 deletions

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index e8e915ce3d8..c9b68d07ac4 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1811,11 +1811,11 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check		= machine_check_440A,
 		.platform		= "ppc440",
 	},
-	{ /* 476 core */
-		.pvr_mask		= 0xffff0000,
-		.pvr_value		= 0x11a50000,
+	{ /* 476 DD2 core */
+		.pvr_mask		= 0xffffffff,
+		.pvr_value		= 0x11a52080,
 		.cpu_name		= "476",
-		.cpu_features		= CPU_FTRS_47X,
+		.cpu_features		= CPU_FTRS_47X | CPU_FTR_476_DD2,
 		.cpu_user_features	= COMMON_USER_BOOKE |
 			PPC_FEATURE_HAS_FPU,
 		.mmu_features		= MMU_FTR_TYPE_47x |
@@ -1839,6 +1839,20 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check		= machine_check_47x,
 		.platform		= "ppc470",
 	},
+	{ /* 476 others */
+		.pvr_mask		= 0xffff0000,
+		.pvr_value		= 0x11a50000,
+		.cpu_name		= "476",
+		.cpu_features		= CPU_FTRS_47X,
+		.cpu_user_features	= COMMON_USER_BOOKE |
+			PPC_FEATURE_HAS_FPU,
+		.mmu_features		= MMU_FTR_TYPE_47x |
+			MMU_FTR_USE_TLBIVAX_BCAST | MMU_FTR_LOCK_BCAST_INVAL,
+		.icache_bsize		= 32,
+		.dcache_bsize		= 128,
+		.machine_check		= machine_check_47x,
+		.platform		= "ppc470",
+	},
 	{	/* default match */
 		.pvr_mask		= 0x00000000,
 		.pvr_value		= 0x00000000,
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index ce557f6f00f..0a5570338b9 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -237,6 +237,7 @@ int show_interrupts(struct seq_file *p, void *v)
 	int i = *(loff_t *) v, j, prec;
 	struct irqaction *action;
 	struct irq_desc *desc;
+	struct irq_chip *chip;
 
 	if (i > nr_irqs)
 		return 0;
@@ -270,8 +271,9 @@ int show_interrupts(struct seq_file *p, void *v)
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
 
-	if (desc->chip)
-		seq_printf(p, "  %-16s", desc->chip->name);
+	chip = get_irq_desc_chip(desc);
+	if (chip)
+		seq_printf(p, "  %-16s", chip->name);
 	else
 		seq_printf(p, "  %-16s", "None");
 	seq_printf(p, " %-8s", (desc->status & IRQ_LEVEL) ? "Level" : "Edge");
@@ -313,6 +315,8 @@ void fixup_irqs(const struct cpumask *map)
 	alloc_cpumask_var(&mask, GFP_KERNEL);
 
 	for_each_irq(irq) {
+		struct irq_chip *chip;
+
 		desc = irq_to_desc(irq);
 		if (!desc)
 			continue;
@@ -320,13 +324,15 @@ void fixup_irqs(const struct cpumask *map)
 		if (desc->status & IRQ_PER_CPU)
 			continue;
 
-		cpumask_and(mask, desc->affinity, map);
+		chip = get_irq_desc_chip(desc);
+
+		cpumask_and(mask, desc->irq_data.affinity, map);
 		if (cpumask_any(mask) >= nr_cpu_ids) {
 			printk("Breaking affinity for irq %i\n", irq);
 			cpumask_copy(mask, map);
 		}
-		if (desc->chip->set_affinity)
-			desc->chip->set_affinity(irq, mask);
+		if (chip->irq_set_affinity)
+			chip->irq_set_affinity(&desc->irq_data, mask, true);
 		else if (desc->action && !(warned++))
 			printk("Cannot set affinity for irq %i\n", irq);
 	}
@@ -678,16 +684,15 @@ void irq_set_virq_count(unsigned int count)
 static int irq_setup_virq(struct irq_host *host, unsigned int virq,
 			    irq_hw_number_t hwirq)
 {
-	struct irq_desc *desc;
+	int res;
 
-	desc = irq_to_desc_alloc_node(virq, 0);
-	if (!desc) {
+	res = irq_alloc_desc_at(virq, 0);
+	if (res != virq) {
 		pr_debug("irq: -> allocating desc failed\n");
 		goto error;
 	}
 
-	/* Clear IRQ_NOREQUEST flag */
-	desc->status &= ~IRQ_NOREQUEST;
+	irq_clear_status_flags(virq, IRQ_NOREQUEST);
 
 	/* map it */
 	smp_wmb();
@@ -696,11 +701,13 @@ static int irq_setup_virq(struct irq_host *host, unsigned int virq,
 
 	if (host->ops->map(host, virq, hwirq)) {
 		pr_debug("irq: -> mapping failed, freeing\n");
-		goto error;
+		goto errdesc;
 	}
 
 	return 0;
 
+errdesc:
+	irq_free_descs(virq, 1);
 error:
 	irq_free_virt(virq, 1);
 	return -1;
@@ -879,9 +886,9 @@ void irq_dispose_mapping(unsigned int virq)
 	smp_mb();
 	irq_map[virq].hwirq = host->inval_irq;
 
-	/* Set some flags */
-	irq_to_desc(virq)->status |= IRQ_NOREQUEST;
+	irq_set_status_flags(virq, IRQ_NOREQUEST);
 
+	irq_free_descs(virq, 1);
 	/* Free it */
 	irq_free_virt(virq, 1);
 }
@@ -1074,21 +1081,6 @@ void irq_free_virt(unsigned int virq, unsigned int count)
 
 int arch_early_irq_init(void)
 {
-	struct irq_desc *desc;
-	int i;
-
-	for (i = 0; i < NR_IRQS; i++) {
-		desc = irq_to_desc(i);
-		if (desc)
-			desc->status |= IRQ_NOREQUEST;
-	}
-
-	return 0;
-}
-
-int arch_init_chip_data(struct irq_desc *desc, int node)
-{
-	desc->status |= IRQ_NOREQUEST;
 	return 0;
 }
 
@@ -1159,11 +1151,14 @@ static int virq_debug_show(struct seq_file *m, void *private)
 		raw_spin_lock_irqsave(&desc->lock, flags);
 
 		if (desc->action && desc->action->handler) {
+			struct irq_chip *chip;
+
 			seq_printf(m, "%5d  ", i);
 			seq_printf(m, "0x%05lx  ", virq_to_hw(i));
 
-			if (desc->chip && desc->chip->name)
-				p = desc->chip->name;
+			chip = get_irq_desc_chip(desc);
+			if (chip && chip->name)
+				p = chip->name;
 			else
 				p = none;
 			seq_printf(m, "%-15s  ", p);
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index a5f8672eeff..bd1e1ff17b2 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -26,20 +26,23 @@ void machine_kexec_mask_interrupts(void) {
 
 	for_each_irq(i) {
 		struct irq_desc *desc = irq_to_desc(i);
+		struct irq_chip *chip;
 
-		if (!desc || !desc->chip)
+		if (!desc)
 			continue;
 
-		if (desc->chip->eoi &&
-		    desc->status & IRQ_INPROGRESS)
-			desc->chip->eoi(i);
+		chip = get_irq_desc_chip(desc);
+		if (!chip)
+			continue;
+
+		if (chip->irq_eoi && desc->status & IRQ_INPROGRESS)
+			chip->irq_eoi(&desc->irq_data);
 
-		if (desc->chip->mask)
-			desc->chip->mask(i);
+		if (chip->irq_mask)
+			chip->irq_mask(&desc->irq_data);
 
-		if (desc->chip->disable &&
-		    !(desc->status & IRQ_DISABLED))
-			desc->chip->disable(i);
+		if (chip->irq_disable && !(desc->status & IRQ_DISABLED))
+			chip->irq_disable(&desc->irq_data);
 	}
 }
 
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index bb12b3248f1..bec1e930ed7 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -237,22 +237,45 @@ static unsigned char __init nvram_checksum(struct nvram_header *p)
 	return c_sum;
 }
 
+/*
+ * Per the criteria passed via nvram_remove_partition(), should this
+ * partition be removed?  1=remove, 0=keep
+ */
+static int nvram_can_remove_partition(struct nvram_partition *part,
+		const char *name, int sig, const char *exceptions[])
+{
+	if (part->header.signature != sig)
+		return 0;
+	if (name) {
+		if (strncmp(name, part->header.name, 12))
+			return 0;
+	} else if (exceptions) {
+		const char **except;
+		for (except = exceptions; *except; except++) {
+			if (!strncmp(*except, part->header.name, 12))
+				return 0;
+		}
+	}
+	return 1;
+}
+
 /**
  * nvram_remove_partition - Remove one or more partitions in nvram
  * @name: name of the partition to remove, or NULL for a
  *        signature only match
  * @sig: signature of the partition(s) to remove
+ * @exceptions: When removing all partitions with a matching signature,
+ *        leave these alone.
  */
 
-int __init nvram_remove_partition(const char *name, int sig)
+int __init nvram_remove_partition(const char *name, int sig,
+						const char *exceptions[])
 {
 	struct nvram_partition *part, *prev, *tmp;
 	int rc;
 
 	list_for_each_entry(part, &nvram_partitions, partition) {
-		if (part->header.signature != sig)
-			continue;
-		if (name && strncmp(name, part->header.name, 12))
+		if (!nvram_can_remove_partition(part, name, sig, exceptions))
 			continue;
 
 		/* Make partition a free partition */
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 7185f0da7dc..05b7139d6a2 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -97,7 +97,7 @@ static void __init move_device_tree(void)
 	start = __pa(initial_boot_params);
 	size = be32_to_cpu(initial_boot_params->totalsize);
 
-	if ((memory_limit && (start + size) > memory_limit) ||
+	if ((memory_limit && (start + size) > PHYSICAL_START + memory_limit) ||
 			overlaps_crashkernel(start, size)) {
 		p = __va(memblock_alloc(size, PAGE_SIZE));
 		memcpy(p, initial_boot_params, size);
diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c
index 049dbecb5db..7980ec0e1e1 100644
--- a/arch/powerpc/kernel/rtasd.c
+++ b/arch/powerpc/kernel/rtasd.c
@@ -412,7 +412,8 @@ static void rtas_event_scan(struct work_struct *w)
 
 	get_online_cpus();
 
-	cpu = cpumask_next(smp_processor_id(), cpu_online_mask);
+	/* raw_ OK because just using CPU as starting point. */
+	cpu = cpumask_next(raw_smp_processor_id(), cpu_online_mask);
         if (cpu >= nr_cpu_ids) {
 		cpu = cpumask_first(cpu_online_mask);