#include <linux/smp_lock.h>
#include <linux/mc146818rtc.h>
#include <linux/acpi.h>
+#include <linux/sysdev.h>
#include <asm/io.h>
#include <asm/smp.h>
#include <asm/desc.h>
#include <asm/proto.h>
+#define __apicdebuginit __init
+
int sis_apic_bug; /* not actually supported, dummy for compile */
#undef APIC_LOCKUP_DEBUG
pirq_entries[i] = -1;
pirqs_enabled = 1;
- printk(KERN_INFO "PIRQ redirection, working around broken MP-BIOS.\n");
+ apic_printk(APIC_VERBOSE, "PIRQ redirection, working around broken MP-BIOS.\n");
max = MAX_PIRQS;
if (ints[0] < MAX_PIRQS)
max = ints[0];
for (i = 0; i < max; i++) {
- printk(KERN_DEBUG "... PIRQ%d -> IRQ %d\n", i, ints[i+1]);
+ apic_printk(APIC_VERBOSE, "... PIRQ%d -> IRQ %d\n", i, ints[i+1]);
/*
* PIRQs are mapped upside down, usually.
*/
{
int apic, i, best_guess = -1;
- Dprintk("querying PCI -> IRQ mapping bus:%d, slot:%d, pin:%d.\n",
+ apic_printk(APIC_DEBUG, "querying PCI -> IRQ mapping bus:%d, slot:%d, pin:%d.\n",
bus, slot, pin);
if (mp_bus_id_to_pci_bus[bus] == -1) {
- printk(KERN_WARNING "PCI BIOS passed nonexistent PCI bus %d!\n", bus);
+ apic_printk(APIC_VERBOSE, "PCI BIOS passed nonexistent PCI bus %d!\n", bus);
return -1;
}
for (i = 0; i < mp_irq_entries; i++) {
unsigned int port = 0x4d0 + (irq >> 3);
return (inb(port) >> (irq & 7)) & 1;
}
- printk(KERN_INFO "Broken MPtable reports ISA irq %d\n", irq);
+ apic_printk(APIC_VERBOSE, "Broken MPtable reports ISA irq %d\n", irq);
return 0;
}
if ((pin >= 16) && (pin <= 23)) {
if (pirq_entries[pin-16] != -1) {
if (!pirq_entries[pin-16]) {
- printk(KERN_DEBUG "disabling PIRQ%d\n", pin-16);
+ apic_printk(APIC_VERBOSE, "disabling PIRQ%d\n", pin-16);
} else {
irq = pirq_entries[pin-16];
- printk(KERN_DEBUG "using PIRQ%d -> IRQ %d\n",
+ apic_printk(APIC_VERBOSE, "using PIRQ%d -> IRQ %d\n",
pin-16, irq);
}
}
int apic, pin, idx, irq, first_notcon = 1, vector;
unsigned long flags;
- printk(KERN_DEBUG "init IO_APIC IRQs\n");
+ apic_printk(APIC_VERBOSE, KERN_DEBUG "init IO_APIC IRQs\n");
for (apic = 0; apic < nr_ioapics; apic++) {
for (pin = 0; pin < nr_ioapic_registers[apic]; pin++) {
entry.delivery_mode = dest_LowestPrio;
entry.dest_mode = INT_DELIVERY_MODE;
entry.mask = 0; /* enable IRQ */
- entry.dest.logical.logical_dest = TARGET_CPUS;
+ entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
idx = find_irq_entry(apic,pin,mp_INT);
if (idx == -1) {
if (first_notcon) {
- printk(KERN_DEBUG " IO-APIC (apicid-pin) %d-%d", mp_ioapics[apic].mpc_apicid, pin);
+ apic_printk(APIC_VERBOSE, KERN_DEBUG " IO-APIC (apicid-pin) %d-%d", mp_ioapics[apic].mpc_apicid, pin);
first_notcon = 0;
} else
- printk(", %d-%d", mp_ioapics[apic].mpc_apicid, pin);
+ apic_printk(APIC_VERBOSE, ", %d-%d", mp_ioapics[apic].mpc_apicid, pin);
continue;
}
if (irq_trigger(idx)) {
entry.trigger = 1;
entry.mask = 1;
- entry.dest.logical.logical_dest = TARGET_CPUS;
+ entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
}
irq = pin_2_irq(idx, apic, pin);
}
if (!first_notcon)
- printk(" not connected.\n");
+ apic_printk(APIC_VERBOSE," not connected.\n");
}
/*
*/
entry.dest_mode = INT_DELIVERY_MODE;
entry.mask = 0; /* unmask IRQ now */
- entry.dest.logical.logical_dest = TARGET_CPUS;
+ entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
entry.delivery_mode = dest_LowestPrio;
entry.polarity = 0;
entry.trigger = 0;
void __init UNEXPECTED_IO_APIC(void)
{
-#if 0
- printk(KERN_WARNING " WARNING: unexpected IO-APIC, please mail\n");
- printk(KERN_WARNING " to linux-smp@vger.kernel.org\n");
-#endif
}
-void __init print_IO_APIC(void)
+void __apicdebuginit print_IO_APIC(void)
{
int apic, i;
union IO_APIC_reg_00 reg_00;
union IO_APIC_reg_02 reg_02;
unsigned long flags;
- printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries);
+ if (apic_verbosity == APIC_QUIET)
+ return;
+
+ printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries);
for (i = 0; i < nr_ioapics; i++)
printk(KERN_DEBUG "number of IO-APIC #%d registers: %d.\n",
mp_ioapics[i].mpc_apicid, nr_ioapic_registers[i]);
return;
}
-static void print_APIC_bitfield (int base)
+static __apicdebuginit void print_APIC_bitfield (int base)
{
unsigned int v;
int i, j;
+ if (apic_verbosity == APIC_QUIET)
+ return;
+
printk(KERN_DEBUG "0123456789abcdef0123456789abcdef\n" KERN_DEBUG);
for (i = 0; i < 8; i++) {
v = apic_read(base + i*0x10);
}
}
-void /*__init*/ print_local_APIC(void * dummy)
+void __apicdebuginit print_local_APIC(void * dummy)
{
unsigned int v, ver, maxlvt;
+ if (apic_verbosity == APIC_QUIET)
+ return;
+
printk("\n" KERN_DEBUG "printing local APIC contents on CPU#%d/%d:\n",
smp_processor_id(), hard_smp_processor_id());
v = apic_read(APIC_ID);
on_each_cpu(print_local_APIC, NULL, 1, 1);
}
-void /*__init*/ print_PIC(void)
+void __apicdebuginit print_PIC(void)
{
extern spinlock_t i8259A_lock;
unsigned int v;
unsigned long flags;
+ if (apic_verbosity == APIC_QUIET)
+ return;
+
printk(KERN_DEBUG "\nprinting PIC contents\n");
spin_lock_irqsave(&i8259A_lock, flags);
old_id = mp_ioapics[apic].mpc_apicid;
if (mp_ioapics[apic].mpc_apicid >= 0xf) {
- printk(KERN_ERR "BIOS bug, IO-APIC#%d ID is %d in the MPC table!...\n",
+ apic_printk(APIC_QUIET,KERN_ERR "BIOS bug, IO-APIC#%d ID is %d in the MPC table!...\n",
apic, mp_ioapics[apic].mpc_apicid);
- printk(KERN_ERR "... fixing up to %d. (tell your hw vendor)\n",
+ apic_printk(APIC_QUIET,KERN_ERR "... fixing up to %d. (tell your hw vendor)\n",
reg_00.bits.ID);
mp_ioapics[apic].mpc_apicid = reg_00.bits.ID;
}
* Read the right value from the MPC table and
* write it into the ID register.
*/
- printk(KERN_INFO "...changing IO-APIC physical APIC ID to %d ...",
+ apic_printk(APIC_VERBOSE,KERN_INFO "...changing IO-APIC physical APIC ID to %d ...",
mp_ioapics[apic].mpc_apicid);
reg_00.bits.ID = mp_ioapics[apic].mpc_apicid;
reg_00.raw = io_apic_read(apic, 0);
spin_unlock_irqrestore(&ioapic_lock, flags);
if (reg_00.bits.ID != mp_ioapics[apic].mpc_apicid)
- panic("could not set ID!\n");
+ printk("could not set ID!\n");
else
- printk(" ok.\n");
+ apic_printk(APIC_VERBOSE," ok.\n");
}
}
pin1 = find_isa_irq_pin(0, mp_INT);
pin2 = find_isa_irq_pin(0, mp_ExtINT);
- printk(KERN_INFO "..TIMER: vector=0x%02X pin1=%d pin2=%d\n", vector, pin1, pin2);
+ apic_printk(APIC_VERBOSE,KERN_INFO "..TIMER: vector=0x%02X pin1=%d pin2=%d\n", vector, pin1, pin2);
if (pin1 != -1) {
/*
return;
}
clear_IO_APIC_pin(0, pin1);
- printk(KERN_ERR "..MP-BIOS bug: 8254 timer not connected to IO-APIC\n");
+ apic_printk(APIC_QUIET,KERN_ERR "..MP-BIOS bug: 8254 timer not connected to IO-APIC\n");
}
- printk(KERN_INFO "...trying to set up timer (IRQ0) through the 8259A ... ");
+ apic_printk(APIC_VERBOSE,KERN_INFO "...trying to set up timer (IRQ0) through the 8259A ... ");
if (pin2 != -1) {
- printk("\n..... (found pin %d) ...", pin2);
+ apic_printk(APIC_VERBOSE,"\n..... (found pin %d) ...", pin2);
/*
* legacy devices should be connected to IO APIC #0
*/
nmi_watchdog = 0;
}
- printk(KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
+ apic_printk(APIC_VERBOSE, KERN_INFO "...trying to set up timer as Virtual Wire IRQ...");
disable_8259A_irq(0);
irq_desc[0].handler = &lapic_irq_type;
enable_8259A_irq(0);
if (timer_irq_works()) {
- printk(" works.\n");
+ apic_printk(APIC_QUIET, " works.\n");
return;
}
apic_write_around(APIC_LVT0, APIC_LVT_MASKED | APIC_DM_FIXED | vector);
- printk(" failed.\n");
+ apic_printk(APIC_VERBOSE," failed.\n");
- printk(KERN_INFO "...trying to set up timer as ExtINT IRQ...");
+ apic_printk(APIC_VERBOSE, KERN_INFO "...trying to set up timer as ExtINT IRQ...");
init_8259A(0);
make_8259A_irq(0);
unlock_ExtINT_logic();
if (timer_irq_works()) {
- printk(" works.\n");
+ apic_printk(APIC_VERBOSE," works.\n");
return;
}
- printk(" failed :(.\n");
+ apic_printk(APIC_VERBOSE," failed :(.\n");
panic("IO-APIC + timer doesn't work! Try using the 'noapic' kernel parameter\n");
}
else
io_apic_irqs = ~PIC_IRQS;
- printk("ENABLING IO-APIC IRQs\n");
+ apic_printk(APIC_VERBOSE, "ENABLING IO-APIC IRQs\n");
/*
* Set up the IO-APIC IRQ routing table.
print_IO_APIC();
}
+struct sysfs_ioapic_data {
+ struct sys_device dev;
+ struct IO_APIC_route_entry entry[0];
+};
+static struct sysfs_ioapic_data * mp_ioapic_data[MAX_IO_APICS];
+
+static int ioapic_suspend(struct sys_device *dev, u32 state)
+{
+ struct IO_APIC_route_entry *entry;
+ struct sysfs_ioapic_data *data;
+ unsigned long flags;
+ int i;
+
+ data = container_of(dev, struct sysfs_ioapic_data, dev);
+ entry = data->entry;
+ spin_lock_irqsave(&ioapic_lock, flags);
+ for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) {
+ *(((int *)entry) + 1) = io_apic_read(dev->id, 0x11 + 2 * i);
+ *(((int *)entry) + 0) = io_apic_read(dev->id, 0x10 + 2 * i);
+ }
+ spin_unlock_irqrestore(&ioapic_lock, flags);
+
+ return 0;
+}
+
+static int ioapic_resume(struct sys_device *dev)
+{
+ struct IO_APIC_route_entry *entry;
+ struct sysfs_ioapic_data *data;
+ unsigned long flags;
+ union IO_APIC_reg_00 reg_00;
+ int i;
+
+ data = container_of(dev, struct sysfs_ioapic_data, dev);
+ entry = data->entry;
+
+ spin_lock_irqsave(&ioapic_lock, flags);
+ reg_00.raw = io_apic_read(dev->id, 0);
+ if (reg_00.bits.ID != mp_ioapics[dev->id].mpc_apicid) {
+ reg_00.bits.ID = mp_ioapics[dev->id].mpc_apicid;
+ io_apic_write(dev->id, 0, reg_00.raw);
+ }
+ for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ ) {
+ io_apic_write(dev->id, 0x11+2*i, *(((int *)entry)+1));
+ io_apic_write(dev->id, 0x10+2*i, *(((int *)entry)+0));
+ }
+ spin_unlock_irqrestore(&ioapic_lock, flags);
+
+ return 0;
+}
+
+static struct sysdev_class ioapic_sysdev_class = {
+ set_kset_name("ioapic"),
+ .suspend = ioapic_suspend,
+ .resume = ioapic_resume,
+};
+
+static int __init ioapic_init_sysfs(void)
+{
+ struct sys_device * dev;
+ int i, size, error = 0;
+
+ error = sysdev_class_register(&ioapic_sysdev_class);
+ if (error)
+ return error;
+
+ for (i = 0; i < nr_ioapics; i++ ) {
+ size = sizeof(struct sys_device) + nr_ioapic_registers[i]
+ * sizeof(struct IO_APIC_route_entry);
+ mp_ioapic_data[i] = kmalloc(size, GFP_KERNEL);
+ if (!mp_ioapic_data[i]) {
+ printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);
+ continue;
+ }
+ memset(mp_ioapic_data[i], 0, size);
+ dev = &mp_ioapic_data[i]->dev;
+ dev->id = i;
+ dev->cls = &ioapic_sysdev_class;
+ error = sysdev_register(dev);
+ if (error) {
+ kfree(mp_ioapic_data[i]);
+ mp_ioapic_data[i] = NULL;
+ printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);
+ continue;
+ }
+ }
+
+ return 0;
+}
+
+device_initcall(ioapic_init_sysfs);
+
/* --------------------------------------------------------------------------
ACPI-based IOAPIC Configuration
-------------------------------------------------------------------------- */
spin_unlock_irqrestore(&ioapic_lock, flags);
if (apic_id >= IO_APIC_MAX_ID) {
- printk(KERN_WARNING "IOAPIC[%d]: Invalid apic_id %d, trying "
+ apic_printk(APIC_QUIET, KERN_WARNING "IOAPIC[%d]: Invalid apic_id %d, trying "
"%d\n", ioapic, apic_id, reg_00.bits.ID);
apic_id = reg_00.bits.ID;
}
if (i == IO_APIC_MAX_ID)
panic("Max apic_id exceeded!\n");
- printk(KERN_WARNING "IOAPIC[%d]: apic_id %d already used, "
+ apic_printk(APIC_VERBOSE, KERN_WARNING "IOAPIC[%d]: apic_id %d already used, "
"trying %d\n", ioapic, apic_id, i);
apic_id = i;
panic("IOAPIC[%d]: Unable change apic_id!\n", ioapic);
}
- printk(KERN_INFO "IOAPIC[%d]: Assigned apic_id %d\n", ioapic, apic_id);
+ apic_printk(APIC_VERBOSE,KERN_INFO "IOAPIC[%d]: Assigned apic_id %d\n", ioapic, apic_id);
return apic_id;
}
unsigned long flags;
if (!IO_APIC_IRQ(irq)) {
- printk(KERN_ERR "IOAPIC[%d]: Invalid reference to IRQ 0\n",
+ apic_printk(APIC_QUIET,KERN_ERR "IOAPIC[%d]: Invalid reference to IRQ 0\n",
ioapic);
return -EINVAL;
}
entry.delivery_mode = dest_LowestPrio;
entry.dest_mode = INT_DELIVERY_MODE;
- entry.dest.logical.logical_dest = TARGET_CPUS;
+ entry.dest.logical.logical_dest = cpu_mask_to_apicid(TARGET_CPUS);
entry.trigger = edge_level;
entry.polarity = active_high_low;
entry.mask = 1; /* Disabled (masked) */
entry.vector = assign_irq_vector(irq);
- printk(KERN_DEBUG "IOAPIC[%d]: Set PCI routing entry (%d-%d -> 0x%x -> "
+ apic_printk(APIC_VERBOSE,KERN_DEBUG "IOAPIC[%d]: Set PCI routing entry (%d-%d -> 0x%x -> "
"IRQ %d Mode:%i Active:%i)\n", ioapic,
mp_ioapics[ioapic].mpc_apicid, pin, entry.vector, irq,
edge_level, active_high_low);
- if (use_pci_vector() && !platform_legacy_irq(irq))
- irq = IO_APIC_VECTOR(irq);
- if (edge_level) {
- irq_desc[irq].handler = &ioapic_level_type;
- } else {
- irq_desc[irq].handler = &ioapic_edge_type;
- }
-
- set_intr_gate(entry.vector, interrupt[irq]);
+ ioapic_register_intr(irq, entry.vector, edge_level);
if (!ioapic && (irq < 16))
disable_8259A_irq(irq);
apic_write_around(APIC_ICR, cfg);
}
#endif
+
+
+/*
+ * This function currently is only a helper for the i386 smp boot process where
+ * we need to reprogram the ioredtbls to cater for the cpus which have come online
+ * so mask in all cases should simply be TARGET_CPUS
+ */
+void __init setup_ioapic_dest(void)
+{
+ int pin, ioapic, irq, irq_entry;
+
+ if (skip_ioapic_setup == 1)
+ return;
+
+ for (ioapic = 0; ioapic < nr_ioapics; ioapic++) {
+ for (pin = 0; pin < nr_ioapic_registers[ioapic]; pin++) {
+ irq_entry = find_irq_entry(ioapic, pin, mp_INT);
+ if (irq_entry == -1)
+ continue;
+ irq = pin_2_irq(irq_entry, ioapic, pin);
+ set_ioapic_affinity_irq(irq, TARGET_CPUS);
+ }
+
+ }
+}
git://git.onelab.eu / linux-2.6.git / blobdiff