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Diffstat (limited to 'arch/powerpc/platforms/pseries/xics.c')
-rw-r--r--arch/powerpc/platforms/pseries/xics.c73
1 files changed, 37 insertions, 36 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 6c1e638f0ce..d6901334d66 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -204,33 +204,33 @@ static int get_irq_server(unsigned int virq, const struct cpumask *cpumask,
static void xics_unmask_irq(struct irq_data *d)
{
- unsigned int irq;
+ unsigned int hwirq;
int call_status;
int server;
pr_devel("xics: unmask virq %d\n", d->irq);
- irq = (unsigned int)irq_map[d->irq].hwirq;
- pr_devel(" -> map to hwirq 0x%x\n", irq);
- if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
+ hwirq = (unsigned int)irq_map[d->irq].hwirq;
+ pr_devel(" -> map to hwirq 0x%x\n", hwirq);
+ if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS)
return;
server = get_irq_server(d->irq, d->affinity, 0);
- call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server,
+ call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hwirq, server,
DEFAULT_PRIORITY);
if (call_status != 0) {
printk(KERN_ERR
"%s: ibm_set_xive irq %u server %x returned %d\n",
- __func__, irq, server, call_status);
+ __func__, hwirq, server, call_status);
return;
}
/* Now unmask the interrupt (often a no-op) */
- call_status = rtas_call(ibm_int_on, 1, 1, NULL, irq);
+ call_status = rtas_call(ibm_int_on, 1, 1, NULL, hwirq);
if (call_status != 0) {
printk(KERN_ERR "%s: ibm_int_on irq=%u returned %d\n",
- __func__, irq, call_status);
+ __func__, hwirq, call_status);
return;
}
}
@@ -250,46 +250,46 @@ static unsigned int xics_startup(struct irq_data *d)
return 0;
}
-static void xics_mask_real_irq(struct irq_data *d)
+static void xics_mask_real_irq(unsigned int hwirq)
{
int call_status;
- if (d->irq == XICS_IPI)
+ if (hwirq == XICS_IPI)
return;
- call_status = rtas_call(ibm_int_off, 1, 1, NULL, d->irq);
+ call_status = rtas_call(ibm_int_off, 1, 1, NULL, hwirq);
if (call_status != 0) {
printk(KERN_ERR "%s: ibm_int_off irq=%u returned %d\n",
- __func__, d->irq, call_status);
+ __func__, hwirq, 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, d->irq,
+ call_status = rtas_call(ibm_set_xive, 3, 1, NULL, hwirq,
default_server, 0xff);
if (call_status != 0) {
printk(KERN_ERR "%s: ibm_set_xive(0xff) irq=%u returned %d\n",
- __func__, d->irq, call_status);
+ __func__, hwirq, call_status);
return;
}
}
static void xics_mask_irq(struct irq_data *d)
{
- unsigned int irq;
+ unsigned int hwirq;
pr_devel("xics: mask virq %d\n", d->irq);
- irq = (unsigned int)irq_map[d->irq].hwirq;
- if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
+ hwirq = (unsigned int)irq_map[d->irq].hwirq;
+ if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS)
return;
- xics_mask_real_irq(d);
+ xics_mask_real_irq(hwirq);
}
static void xics_mask_unknown_vec(unsigned int vec)
{
printk(KERN_ERR "Interrupt %u (real) is invalid, disabling it.\n", vec);
- xics_mask_real_irq(irq_get_irq_data(vec));
+ xics_mask_real_irq(vec);
}
static inline unsigned int xics_xirr_vector(unsigned int xirr)
@@ -373,37 +373,37 @@ static unsigned char pop_cppr(void)
static void xics_eoi_direct(struct irq_data *d)
{
- unsigned int irq = (unsigned int)irq_map[d->irq].hwirq;
+ unsigned int hwirq = (unsigned int)irq_map[d->irq].hwirq;
iosync();
- direct_xirr_info_set((pop_cppr() << 24) | irq);
+ direct_xirr_info_set((pop_cppr() << 24) | hwirq);
}
static void xics_eoi_lpar(struct irq_data *d)
{
- unsigned int irq = (unsigned int)irq_map[d->irq].hwirq;
+ unsigned int hwirq = (unsigned int)irq_map[d->irq].hwirq;
iosync();
- lpar_xirr_info_set((pop_cppr() << 24) | irq);
+ lpar_xirr_info_set((pop_cppr() << 24) | hwirq);
}
static int
xics_set_affinity(struct irq_data *d, const struct cpumask *cpumask, bool force)
{
- unsigned int irq;
+ unsigned int hwirq;
int status;
int xics_status[2];
int irq_server;
- irq = (unsigned int)irq_map[d->irq].hwirq;
- if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
+ hwirq = (unsigned int)irq_map[d->irq].hwirq;
+ if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS)
return -1;
- status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq);
+ status = rtas_call(ibm_get_xive, 1, 3, xics_status, hwirq);
if (status) {
printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n",
- __func__, irq, status);
+ __func__, hwirq, status);
return -1;
}
@@ -418,11 +418,11 @@ xics_set_affinity(struct irq_data *d, const struct cpumask *cpumask, bool force)
}
status = rtas_call(ibm_set_xive, 3, 1, NULL,
- irq, irq_server, xics_status[1]);
+ hwirq, irq_server, xics_status[1]);
if (status) {
printk(KERN_ERR "%s: ibm,set-xive irq=%u returns %d\n",
- __func__, irq, status);
+ __func__, hwirq, status);
return -1;
}
@@ -874,7 +874,7 @@ void xics_kexec_teardown_cpu(int secondary)
void xics_migrate_irqs_away(void)
{
int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id();
- unsigned int irq, virq;
+ int virq;
/* If we used to be the default server, move to the new "boot_cpuid" */
if (hw_cpu == default_server)
@@ -892,18 +892,19 @@ void xics_migrate_irqs_away(void)
for_each_irq(virq) {
struct irq_desc *desc;
struct irq_chip *chip;
+ unsigned int hwirq;
int xics_status[2];
int status;
unsigned long flags;
- /* We cant set affinity on ISA interrupts */
+ /* We can't set affinity on ISA interrupts */
if (virq < NUM_ISA_INTERRUPTS)
continue;
if (irq_map[virq].host != xics_host)
continue;
- irq = (unsigned int)irq_map[virq].hwirq;
+ hwirq = (unsigned int)irq_map[virq].hwirq;
/* We need to get IPIs still. */
- if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
+ if (hwirq == XICS_IPI || hwirq == XICS_IRQ_SPURIOUS)
continue;
desc = irq_to_desc(virq);
@@ -918,10 +919,10 @@ void xics_migrate_irqs_away(void)
raw_spin_lock_irqsave(&desc->lock, flags);
- status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq);
+ status = rtas_call(ibm_get_xive, 1, 3, xics_status, hwirq);
if (status) {
printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n",
- __func__, irq, status);
+ __func__, hwirq, status);
goto unlock;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 22:13:40 +0000