#include <asm/naca.h>
#include <asm/rtas.h>
#include <asm/xics.h>
-#include <asm/ppcdebug.h>
#include <asm/hvcall.h>
#include <asm/machdep.h>
val64);
}
-static void pSeriesLP_cppr_info(int n_cpu, u8 value)
+void pSeriesLP_cppr_info(int n_cpu, u8 value)
{
unsigned long lpar_rc;
#ifdef CONFIG_SMP
static int get_irq_server(unsigned int irq)
{
- cpumask_t cpumask = irq_affinity[irq];
- cpumask_t allcpus = CPU_MASK_ALL;
- cpumask_t tmp = CPU_MASK_NONE;
unsigned int server;
#ifdef CONFIG_IRQ_ALL_CPUS
/* For the moment only implement delivery to all cpus or one cpu */
if (smp_threads_ready) {
- if (cpus_equal(cpumask, allcpus)) {
+ cpumask_t cpumask = irq_affinity[irq];
+ cpumask_t tmp = CPU_MASK_NONE;
+ if (cpus_equal(cpumask, CPU_MASK_ALL)) {
server = default_distrib_server;
} else {
cpus_and(tmp, cpu_online_map, cpumask);
static void xics_enable_irq(unsigned int virq)
{
unsigned int irq;
- long call_status;
+ int call_status;
unsigned int server;
irq = virt_irq_to_real(irq_offset_down(virq));
call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server,
DEFAULT_PRIORITY);
if (call_status != 0) {
- printk(KERN_ERR "xics_enable_irq: irq=%x: ibm_set_xive "
- "returned %lx\n", irq, call_status);
+ printk(KERN_ERR "xics_enable_irq: irq=%d: ibm_set_xive "
+ "returned %x\n", irq, call_status);
return;
}
/* Now unmask the interrupt (often a no-op) */
call_status = rtas_call(ibm_int_on, 1, 1, NULL, irq);
if (call_status != 0) {
- printk(KERN_ERR "xics_enable_irq: irq=%x: ibm_int_on "
- "returned %lx\n", irq, call_status);
+ printk(KERN_ERR "xics_enable_irq: irq=%d: ibm_int_on "
+ "returned %x\n", irq, call_status);
return;
}
}
static void xics_disable_real_irq(unsigned int irq)
{
- long call_status;
+ int call_status;
unsigned int server;
if (irq == XICS_IPI)
call_status = rtas_call(ibm_int_off, 1, 1, NULL, irq);
if (call_status != 0) {
- printk(KERN_ERR "xics_disable_real_irq: irq=%x: "
- "ibm_int_off returned %lx\n", irq, call_status);
+ printk(KERN_ERR "xics_disable_real_irq: irq=%d: "
+ "ibm_int_off returned %x\n", irq, call_status);
return;
}
/* Have to set XIVE to 0xff to be able to remove a slot */
call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server, 0xff);
if (call_status != 0) {
- printk(KERN_ERR "xics_disable_irq: irq=%x: ibm_set_xive(0xff)"
- " returned %lx\n", irq, call_status);
+ printk(KERN_ERR "xics_disable_irq: irq=%d: ibm_set_xive(0xff)"
+ " returned %x\n", irq, call_status);
return;
}
}
}
}
-extern unsigned int real_irq_to_virt_slowpath(unsigned int real_irq);
-
int xics_get_irq(struct pt_regs *regs)
{
unsigned int cpu = smp_processor_id();
if (irq == NO_IRQ)
irq = real_irq_to_virt_slowpath(vec);
if (irq == NO_IRQ) {
- printk(KERN_ERR "Interrupt 0x%x (real) is invalid,"
+ printk(KERN_ERR "Interrupt %d (real) is invalid,"
" disabling it.\n", vec);
xics_disable_real_irq(vec);
} else
#ifdef CONFIG_SMP
-extern struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned;
-
irqreturn_t xics_ipi_action(int irq, void *dev_id, struct pt_regs *regs)
{
int cpu = smp_processor_id();
ibm_int_off = rtas_token("ibm,int-off");
np = of_find_node_by_type(NULL, "PowerPC-External-Interrupt-Presentation");
- if (!np) {
- printk(KERN_WARNING "Can't find Interrupt Presentation\n");
- udbg_printf("Can't find Interrupt Presentation\n");
- while (1);
- }
+ if (!np)
+ panic("xics_init_IRQ: can't find interrupt presentation");
+
nextnode:
- ireg = (uint *)get_property(np, "ibm,interrupt-server-ranges", 0);
+ ireg = (uint *)get_property(np, "ibm,interrupt-server-ranges", NULL);
if (ireg) {
/*
* set node starting index for this node
}
ireg = (uint *)get_property(np, "reg", &ilen);
- if (!ireg) {
- printk(KERN_WARNING "Can't find Interrupt Reg Property\n");
- udbg_printf("Can't find Interrupt Reg Property\n");
- while (1);
- }
+ if (!ireg)
+ panic("xics_init_IRQ: can't find interrupt reg property");
while (ilen) {
inodes[indx].addr = (unsigned long long)*ireg++ << 32;
np = of_find_node_by_type(NULL, "interrupt-controller");
if (!np) {
- printk(KERN_WARNING "xics: no ISA Interrupt Controller\n");
+ printk(KERN_WARNING "xics: no ISA interrupt controller\n");
xics_irq_8259_cascade_real = -1;
xics_irq_8259_cascade = -1;
} else {
- ireg = (uint *) get_property(np, "interrupts", 0);
- if (!ireg) {
- printk(KERN_WARNING "Can't find ISA Interrupts Property\n");
- udbg_printf("Can't find ISA Interrupts Property\n");
- while (1);
- }
+ ireg = (uint *) get_property(np, "interrupts", NULL);
+ if (!ireg)
+ panic("xics_init_IRQ: can't find ISA interrupts property");
+
xics_irq_8259_cascade_real = *ireg;
xics_irq_8259_cascade
= virt_irq_create_mapping(xics_irq_8259_cascade_real);
xics_per_cpu[0] = __ioremap((ulong)intr_base, intr_size,
_PAGE_NO_CACHE);
#endif /* CONFIG_SMP */
-#ifdef CONFIG_PPC_PSERIES
- /* actually iSeries does not use any of xics...but it has link dependencies
- * for now, except this new one...
- */
} else if (systemcfg->platform == PLATFORM_PSERIES_LPAR) {
ops = &pSeriesLP_ops;
-#endif
}
xics_8259_pic.enable = i8259_pic.enable;
if (naca->interrupt_controller == IC_PPC_XIC &&
xics_irq_8259_cascade != -1) {
if (request_irq(irq_offset_up(xics_irq_8259_cascade),
- no_action, 0, "8259 cascade", 0))
- printk(KERN_ERR "xics_init_IRQ: couldn't get 8259 cascade\n");
+ no_action, 0, "8259 cascade", NULL))
+ printk(KERN_ERR "xics_setup_i8259: couldn't get 8259 "
+ "cascade\n");
i8259_init();
}
return 0;
/* IPIs are marked SA_INTERRUPT as they must run with irqs disabled */
request_irq(irq_offset_up(XICS_IPI), xics_ipi_action, SA_INTERRUPT,
- "IPI", 0);
+ "IPI", NULL);
get_irq_desc(irq_offset_up(XICS_IPI))->status |= IRQ_PER_CPU;
}
#endif
static void xics_set_affinity(unsigned int virq, cpumask_t cpumask)
{
unsigned int irq;
- long status;
- unsigned long xics_status[2];
+ int status;
+ int xics_status[2];
unsigned long newmask;
- cpumask_t allcpus = CPU_MASK_ALL;
cpumask_t tmp = CPU_MASK_NONE;
irq = virt_irq_to_real(irq_offset_down(virq));
if (irq == XICS_IPI || irq == NO_IRQ)
return;
- status = rtas_call(ibm_get_xive, 1, 3, (void *)&xics_status, irq);
+ status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq);
if (status) {
printk(KERN_ERR "xics_set_affinity: irq=%d ibm,get-xive "
- "returns %ld\n", irq, status);
+ "returns %d\n", irq, status);
return;
}
/* For the moment only implement delivery to all cpus or one cpu */
- if (cpus_equal(cpumask, allcpus)) {
+ if (cpus_equal(cpumask, CPU_MASK_ALL)) {
newmask = default_distrib_server;
} else {
cpus_and(tmp, cpu_online_map, cpumask);
irq, newmask, xics_status[1]);
if (status) {
- printk(KERN_ERR "xics_set_affinity irq=%d ibm,set-xive "
- "returns %ld\n", irq, status);
+ printk(KERN_ERR "xics_set_affinity: irq=%d ibm,set-xive "
+ "returns %d\n", irq, status);
return;
}
}
void xics_migrate_irqs_away(void)
{
int set_indicator = rtas_token("set-indicator");
- const unsigned long giqs = 9005UL; /* Global Interrupt Queue Server */
- unsigned long status = 0;
- unsigned int irq, cpu = smp_processor_id();
- unsigned long xics_status[2];
- unsigned long flags;
+ const unsigned int giqs = 9005UL; /* Global Interrupt Queue Server */
+ int status = 0;
+ unsigned int irq, virq, cpu = smp_processor_id();
BUG_ON(set_indicator == RTAS_UNKNOWN_SERVICE);
/* Refuse any new interrupts... */
rtas_call(set_indicator, 3, 1, &status, giqs,
- hard_smp_processor_id(), 0UL);
+ hard_smp_processor_id(), 0);
WARN_ON(status != 0);
/* Allow IPIs again... */
ops->cppr_info(cpu, DEFAULT_PRIORITY);
iosync();
- printk(KERN_WARNING "HOTPLUG: Migrating IRQs away\n");
- for_each_irq(irq) {
- irq_desc_t *desc = get_irq_desc(irq);
+ for_each_irq(virq) {
+ irq_desc_t *desc;
+ int xics_status[2];
+ unsigned long flags;
+
+ /* We cant set affinity on ISA interrupts */
+ if (virq < irq_offset_value())
+ continue;
+
+ desc = get_irq_desc(virq);
+ irq = virt_irq_to_real(irq_offset_down(virq));
/* We need to get IPIs still. */
- if (irq_offset_down(irq) == XICS_IPI)
+ if (irq == XICS_IPI || irq == NO_IRQ)
continue;
/* We only need to migrate enabled IRQS */
spin_lock_irqsave(&desc->lock, flags);
- status = rtas_call(ibm_get_xive, 1, 3, (void *)&xics_status,
- irq);
+ status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq);
if (status) {
printk(KERN_ERR "migrate_irqs_away: irq=%d "
- "ibm,get-xive returns %ld\n",
- irq, status);
+ "ibm,get-xive returns %d\n",
+ virq, status);
goto unlock;
}
goto unlock;
printk(KERN_WARNING "IRQ %d affinity broken off cpu %u\n",
- irq, cpu);
+ virq, cpu);
/* Reset affinity to all cpus */
xics_status[0] = default_distrib_server;
- status = rtas_call(ibm_set_xive, 3, 1, NULL,
- irq, xics_status[0], xics_status[1]);
+ status = rtas_call(ibm_set_xive, 3, 1, NULL, irq,
+ xics_status[0], xics_status[1]);
if (status)
- printk(KERN_ERR "migrate_irqs_away irq=%d "
- "ibm,set-xive returns %ld\n",
- irq, status);
+ printk(KERN_ERR "migrate_irqs_away: irq=%d "
+ "ibm,set-xive returns %d\n",
+ virq, status);
unlock:
spin_unlock_irqrestore(&desc->lock, flags);
}
-
}
#endif
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