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path: root/arch/mips/sibyte/sb1250/irq.c
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Diffstat (limited to 'arch/mips/sibyte/sb1250/irq.c')
-rw-r--r--arch/mips/sibyte/sb1250/irq.c121
1 files changed, 58 insertions, 63 deletions
diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c
index 2725b263cced..589537bfcc3d 100644
--- a/arch/mips/sibyte/sb1250/irq.c
+++ b/arch/mips/sibyte/sb1250/irq.c
@@ -53,7 +53,7 @@ static void disable_sb1250_irq(unsigned int irq);
static unsigned int startup_sb1250_irq(unsigned int irq);
static void ack_sb1250_irq(unsigned int irq);
#ifdef CONFIG_SMP
-static void sb1250_set_affinity(unsigned int irq, unsigned long mask);
+static void sb1250_set_affinity(unsigned int irq, cpumask_t mask);
#endif
#ifdef CONFIG_SIBYTE_HAS_LDT
@@ -71,17 +71,15 @@ extern char sb1250_duart_present[];
#endif
static struct hw_interrupt_type sb1250_irq_type = {
- "SB1250-IMR",
- startup_sb1250_irq,
- shutdown_sb1250_irq,
- enable_sb1250_irq,
- disable_sb1250_irq,
- ack_sb1250_irq,
- end_sb1250_irq,
+ .typename = "SB1250-IMR",
+ .startup = startup_sb1250_irq,
+ .shutdown = shutdown_sb1250_irq,
+ .enable = enable_sb1250_irq,
+ .disable = disable_sb1250_irq,
+ .ack = ack_sb1250_irq,
+ .end = end_sb1250_irq,
#ifdef CONFIG_SMP
- sb1250_set_affinity
-#else
- NULL
+ .set_affinity = sb1250_set_affinity
#endif
};
@@ -96,11 +94,11 @@ void sb1250_mask_irq(int cpu, int irq)
u64 cur_ints;
spin_lock_irqsave(&sb1250_imr_lock, flags);
- cur_ints = __bus_readq(IOADDR(A_IMR_MAPPER(cpu) +
- R_IMR_INTERRUPT_MASK));
+ cur_ints = ____raw_readq(IOADDR(A_IMR_MAPPER(cpu) +
+ R_IMR_INTERRUPT_MASK));
cur_ints |= (((u64) 1) << irq);
- __bus_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +
- R_IMR_INTERRUPT_MASK));
+ ____raw_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +
+ R_IMR_INTERRUPT_MASK));
spin_unlock_irqrestore(&sb1250_imr_lock, flags);
}
@@ -110,32 +108,25 @@ void sb1250_unmask_irq(int cpu, int irq)
u64 cur_ints;
spin_lock_irqsave(&sb1250_imr_lock, flags);
- cur_ints = __bus_readq(IOADDR(A_IMR_MAPPER(cpu) +
- R_IMR_INTERRUPT_MASK));
+ cur_ints = ____raw_readq(IOADDR(A_IMR_MAPPER(cpu) +
+ R_IMR_INTERRUPT_MASK));
cur_ints &= ~(((u64) 1) << irq);
- __bus_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +
- R_IMR_INTERRUPT_MASK));
+ ____raw_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +
+ R_IMR_INTERRUPT_MASK));
spin_unlock_irqrestore(&sb1250_imr_lock, flags);
}
#ifdef CONFIG_SMP
-static void sb1250_set_affinity(unsigned int irq, unsigned long mask)
+static void sb1250_set_affinity(unsigned int irq, cpumask_t mask)
{
int i = 0, old_cpu, cpu, int_on;
u64 cur_ints;
irq_desc_t *desc = irq_desc + irq;
unsigned long flags;
- while (mask) {
- if (mask & 1) {
- mask >>= 1;
- break;
- }
- mask >>= 1;
- i++;
- }
+ i = first_cpu(mask);
- if (mask) {
+ if (cpus_weight(mask) > 1) {
printk("attempted to set irq affinity for irq %d to multiple CPUs\n", irq);
return;
}
@@ -149,23 +140,23 @@ static void sb1250_set_affinity(unsigned int irq, unsigned long mask)
/* Swizzle each CPU's IMR (but leave the IP selection alone) */
old_cpu = sb1250_irq_owner[irq];
- cur_ints = __bus_readq(IOADDR(A_IMR_MAPPER(old_cpu) +
- R_IMR_INTERRUPT_MASK));
+ cur_ints = ____raw_readq(IOADDR(A_IMR_MAPPER(old_cpu) +
+ R_IMR_INTERRUPT_MASK));
int_on = !(cur_ints & (((u64) 1) << irq));
if (int_on) {
/* If it was on, mask it */
cur_ints |= (((u64) 1) << irq);
- __bus_writeq(cur_ints, IOADDR(A_IMR_MAPPER(old_cpu) +
- R_IMR_INTERRUPT_MASK));
+ ____raw_writeq(cur_ints, IOADDR(A_IMR_MAPPER(old_cpu) +
+ R_IMR_INTERRUPT_MASK));
}
sb1250_irq_owner[irq] = cpu;
if (int_on) {
/* unmask for the new CPU */
- cur_ints = __bus_readq(IOADDR(A_IMR_MAPPER(cpu) +
- R_IMR_INTERRUPT_MASK));
+ cur_ints = ____raw_readq(IOADDR(A_IMR_MAPPER(cpu) +
+ R_IMR_INTERRUPT_MASK));
cur_ints &= ~(((u64) 1) << irq);
- __bus_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +
- R_IMR_INTERRUPT_MASK));
+ ____raw_writeq(cur_ints, IOADDR(A_IMR_MAPPER(cpu) +
+ R_IMR_INTERRUPT_MASK));
}
spin_unlock(&sb1250_imr_lock);
spin_unlock_irqrestore(&desc->lock, flags);
@@ -208,8 +199,8 @@ static void ack_sb1250_irq(unsigned int irq)
* deliver the interrupts to all CPUs (which makes affinity
* changing easier for us)
*/
- pending = bus_readq(IOADDR(A_IMR_REGISTER(sb1250_irq_owner[irq],
- R_IMR_LDT_INTERRUPT)));
+ pending = __raw_readq(IOADDR(A_IMR_REGISTER(sb1250_irq_owner[irq],
+ R_IMR_LDT_INTERRUPT)));
pending &= ((u64)1 << (irq));
if (pending) {
int i;
@@ -224,8 +215,8 @@ static void ack_sb1250_irq(unsigned int irq)
* Clear for all CPUs so an affinity switch
* doesn't find an old status
*/
- bus_writeq(pending,
- IOADDR(A_IMR_REGISTER(cpu,
+ __raw_writeq(pending,
+ IOADDR(A_IMR_REGISTER(cpu,
R_IMR_LDT_INTERRUPT_CLR)));
}
@@ -340,12 +331,14 @@ void __init arch_init_irq(void)
/* Default everything to IP2 */
for (i = 0; i < SB1250_NR_IRQS; i++) { /* was I0 */
- bus_writeq(IMR_IP2_VAL,
- IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MAP_BASE) +
- (i << 3)));
- bus_writeq(IMR_IP2_VAL,
- IOADDR(A_IMR_REGISTER(1, R_IMR_INTERRUPT_MAP_BASE) +
- (i << 3)));
+ __raw_writeq(IMR_IP2_VAL,
+ IOADDR(A_IMR_REGISTER(0,
+ R_IMR_INTERRUPT_MAP_BASE) +
+ (i << 3)));
+ __raw_writeq(IMR_IP2_VAL,
+ IOADDR(A_IMR_REGISTER(1,
+ R_IMR_INTERRUPT_MAP_BASE) +
+ (i << 3)));
}
init_sb1250_irqs();
@@ -355,23 +348,23 @@ void __init arch_init_irq(void)
* inter-cpu messages
*/
/* Was I1 */
- bus_writeq(IMR_IP3_VAL,
- IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MAP_BASE) +
- (K_INT_MBOX_0 << 3)));
- bus_writeq(IMR_IP3_VAL,
- IOADDR(A_IMR_REGISTER(1, R_IMR_INTERRUPT_MAP_BASE) +
- (K_INT_MBOX_0 << 3)));
+ __raw_writeq(IMR_IP3_VAL,
+ IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MAP_BASE) +
+ (K_INT_MBOX_0 << 3)));
+ __raw_writeq(IMR_IP3_VAL,
+ IOADDR(A_IMR_REGISTER(1, R_IMR_INTERRUPT_MAP_BASE) +
+ (K_INT_MBOX_0 << 3)));
/* Clear the mailboxes. The firmware may leave them dirty */
- bus_writeq(0xffffffffffffffffULL,
- IOADDR(A_IMR_REGISTER(0, R_IMR_MAILBOX_CLR_CPU)));
- bus_writeq(0xffffffffffffffffULL,
- IOADDR(A_IMR_REGISTER(1, R_IMR_MAILBOX_CLR_CPU)));
+ __raw_writeq(0xffffffffffffffffULL,
+ IOADDR(A_IMR_REGISTER(0, R_IMR_MAILBOX_CLR_CPU)));
+ __raw_writeq(0xffffffffffffffffULL,
+ IOADDR(A_IMR_REGISTER(1, R_IMR_MAILBOX_CLR_CPU)));
/* Mask everything except the mailbox registers for both cpus */
tmp = ~((u64) 0) ^ (((u64) 1) << K_INT_MBOX_0);
- bus_writeq(tmp, IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MASK)));
- bus_writeq(tmp, IOADDR(A_IMR_REGISTER(1, R_IMR_INTERRUPT_MASK)));
+ __raw_writeq(tmp, IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MASK)));
+ __raw_writeq(tmp, IOADDR(A_IMR_REGISTER(1, R_IMR_INTERRUPT_MASK)));
sb1250_steal_irq(K_INT_MBOX_0);
@@ -396,12 +389,14 @@ void __init arch_init_irq(void)
sb1250_duart_present[kgdb_port] = 0;
#endif
/* Setup uart 1 settings, mapper */
- bus_writeq(M_DUART_IMR_BRK, IOADDR(A_DUART_IMRREG(kgdb_port)));
+ __raw_writeq(M_DUART_IMR_BRK,
+ IOADDR(A_DUART_IMRREG(kgdb_port)));
sb1250_steal_irq(kgdb_irq);
- bus_writeq(IMR_IP6_VAL,
- IOADDR(A_IMR_REGISTER(0, R_IMR_INTERRUPT_MAP_BASE) +
- (kgdb_irq<<3)));
+ __raw_writeq(IMR_IP6_VAL,
+ IOADDR(A_IMR_REGISTER(0,
+ R_IMR_INTERRUPT_MAP_BASE) +
+ (kgdb_irq << 3)));
sb1250_unmask_irq(0, kgdb_irq);
}
#endif
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.