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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-18 06:31:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-18 06:31:43 -0700
commit0a95d92c0054e74fb79607ac2df958b7bf295706 (patch)
treee2c5f836e799dcfd72904949be47595af91432e7 /arch/powerpc/kernel
parent08351fc6a75731226e1112fc7254542bd3a2912e (diff)
parent831532035b12a5f7b600515a6f4da0b207b82d6e (diff)
downloadop-kernel-dev-0a95d92c0054e74fb79607ac2df958b7bf295706.zip
op-kernel-dev-0a95d92c0054e74fb79607ac2df958b7bf295706.tar.gz
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)
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/cputable.c22
-rw-r--r--arch/powerpc/kernel/irq.c55
-rw-r--r--arch/powerpc/kernel/machine_kexec.c21
-rw-r--r--arch/powerpc/kernel/nvram_64.c31
-rw-r--r--arch/powerpc/kernel/prom.c2
-rw-r--r--arch/powerpc/kernel/rtasd.c3
6 files changed, 85 insertions, 49 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index e8e915c..c9b68d0 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 ce557f6..0a557033 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 a5f8672..bd1e1ff 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 bb12b32..bec1e93 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 7185f0d..05b7139 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 049dbec..7980ec0 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);
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