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Diffstat (limited to 'arch/mips/sni/rm200.c')
-rw-r--r--arch/mips/sni/rm200.c42
1 files changed, 15 insertions, 27 deletions
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index 0e6f42c2bbc8..f05d8e593300 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -155,12 +155,11 @@ static __iomem u8 *rm200_pic_slave;
155#define cached_master_mask (rm200_cached_irq_mask) 155#define cached_master_mask (rm200_cached_irq_mask)
156#define cached_slave_mask (rm200_cached_irq_mask >> 8) 156#define cached_slave_mask (rm200_cached_irq_mask >> 8)
157 157
158static void sni_rm200_disable_8259A_irq(unsigned int irq) 158static void sni_rm200_disable_8259A_irq(struct irq_data *d)
159{ 159{
160 unsigned int mask; 160 unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE;
161 unsigned long flags; 161 unsigned long flags;
162 162
163 irq -= RM200_I8259A_IRQ_BASE;
164 mask = 1 << irq; 163 mask = 1 << irq;
165 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); 164 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
166 rm200_cached_irq_mask |= mask; 165 rm200_cached_irq_mask |= mask;
@@ -171,12 +170,11 @@ static void sni_rm200_disable_8259A_irq(unsigned int irq)
171 raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags); 170 raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
172} 171}
173 172
174static void sni_rm200_enable_8259A_irq(unsigned int irq) 173static void sni_rm200_enable_8259A_irq(struct irq_data *d)
175{ 174{
176 unsigned int mask; 175 unsigned int mask, irq = d->irq - RM200_I8259A_IRQ_BASE;
177 unsigned long flags; 176 unsigned long flags;
178 177
179 irq -= RM200_I8259A_IRQ_BASE;
180 mask = ~(1 << irq); 178 mask = ~(1 << irq);
181 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); 179 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
182 rm200_cached_irq_mask &= mask; 180 rm200_cached_irq_mask &= mask;
@@ -210,12 +208,11 @@ static inline int sni_rm200_i8259A_irq_real(unsigned int irq)
210 * first, _then_ send the EOI, and the order of EOI 208 * first, _then_ send the EOI, and the order of EOI
211 * to the two 8259s is important! 209 * to the two 8259s is important!
212 */ 210 */
213void sni_rm200_mask_and_ack_8259A(unsigned int irq) 211void sni_rm200_mask_and_ack_8259A(struct irq_data *d)
214{ 212{
215 unsigned int irqmask; 213 unsigned int irqmask, irq = d->irq - RM200_I8259A_IRQ_BASE;
216 unsigned long flags; 214 unsigned long flags;
217 215
218 irq -= RM200_I8259A_IRQ_BASE;
219 irqmask = 1 << irq; 216 irqmask = 1 << irq;
220 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); 217 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
221 /* 218 /*
@@ -285,9 +282,9 @@ spurious_8259A_irq:
285 282
286static struct irq_chip sni_rm200_i8259A_chip = { 283static struct irq_chip sni_rm200_i8259A_chip = {
287 .name = "RM200-XT-PIC", 284 .name = "RM200-XT-PIC",
288 .mask = sni_rm200_disable_8259A_irq, 285 .irq_mask = sni_rm200_disable_8259A_irq,
289 .unmask = sni_rm200_enable_8259A_irq, 286 .irq_unmask = sni_rm200_enable_8259A_irq,
290 .mask_ack = sni_rm200_mask_and_ack_8259A, 287 .irq_mask_ack = sni_rm200_mask_and_ack_8259A,
291}; 288};
292 289
293/* 290/*
@@ -429,33 +426,24 @@ void __init sni_rm200_i8259_irqs(void)
429#define SNI_RM200_INT_START 24 426#define SNI_RM200_INT_START 24
430#define SNI_RM200_INT_END 28 427#define SNI_RM200_INT_END 28
431 428
432static void enable_rm200_irq(unsigned int irq) 429static void enable_rm200_irq(struct irq_data *d)
433{ 430{
434 unsigned int mask = 1 << (irq - SNI_RM200_INT_START); 431 unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START);
435 432
436 *(volatile u8 *)SNI_RM200_INT_ENA_REG &= ~mask; 433 *(volatile u8 *)SNI_RM200_INT_ENA_REG &= ~mask;
437} 434}
438 435
439void disable_rm200_irq(unsigned int irq) 436void disable_rm200_irq(struct irq_data *d)
440{ 437{
441 unsigned int mask = 1 << (irq - SNI_RM200_INT_START); 438 unsigned int mask = 1 << (d->irq - SNI_RM200_INT_START);
442 439
443 *(volatile u8 *)SNI_RM200_INT_ENA_REG |= mask; 440 *(volatile u8 *)SNI_RM200_INT_ENA_REG |= mask;
444} 441}
445 442
446void end_rm200_irq(unsigned int irq)
447{
448 if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
449 enable_rm200_irq(irq);
450}
451
452static struct irq_chip rm200_irq_type = { 443static struct irq_chip rm200_irq_type = {
453 .name = "RM200", 444 .name = "RM200",
454 .ack = disable_rm200_irq, 445 .irq_mask = disable_rm200_irq,
455 .mask = disable_rm200_irq, 446 .irq_unmask = enable_rm200_irq,
456 .mask_ack = disable_rm200_irq,
457 .unmask = enable_rm200_irq,
458 .end = end_rm200_irq,
459}; 447};
460 448
461static void sni_rm200_hwint(void) 449static void sni_rm200_hwint(void)