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authorRalf Baechle <ralf@linux-mips.org>2010-02-27 06:53:39 -0500
committerRalf Baechle <ralf@linux-mips.org>2010-02-27 06:53:39 -0500
commit36946d7387ee6f3a331563a1d839240924b65798 (patch)
tree6bfb5e1776ebb2bce424c1600d655de09d495853 /arch/mips
parent896508705561bea24656680cdaf3b4095c4d7473 (diff)
MIPS: SNI: Convert sni_rm200_i8259A_lock to raw spinlock.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/sni/rm200.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c
index c4778e47efa4..90c558f7c0fa 100644
--- a/arch/mips/sni/rm200.c
+++ b/arch/mips/sni/rm200.c
@@ -132,7 +132,7 @@ device_initcall(snirm_setup_devinit);
132 * readb/writeb to access them 132 * readb/writeb to access them
133 */ 133 */
134 134
135static DEFINE_SPINLOCK(sni_rm200_i8259A_lock); 135static DEFINE_RAW_SPINLOCK(sni_rm200_i8259A_lock);
136#define PIC_CMD 0x00 136#define PIC_CMD 0x00
137#define PIC_IMR 0x01 137#define PIC_IMR 0x01
138#define PIC_ISR PIC_CMD 138#define PIC_ISR PIC_CMD
@@ -161,13 +161,13 @@ static void sni_rm200_disable_8259A_irq(unsigned int irq)
161 161
162 irq -= RM200_I8259A_IRQ_BASE; 162 irq -= RM200_I8259A_IRQ_BASE;
163 mask = 1 << irq; 163 mask = 1 << irq;
164 spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); 164 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
165 rm200_cached_irq_mask |= mask; 165 rm200_cached_irq_mask |= mask;
166 if (irq & 8) 166 if (irq & 8)
167 writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR); 167 writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
168 else 168 else
169 writeb(cached_master_mask, rm200_pic_master + PIC_IMR); 169 writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
170 spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags); 170 raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
171} 171}
172 172
173static void sni_rm200_enable_8259A_irq(unsigned int irq) 173static void sni_rm200_enable_8259A_irq(unsigned int irq)
@@ -177,13 +177,13 @@ static void sni_rm200_enable_8259A_irq(unsigned int irq)
177 177
178 irq -= RM200_I8259A_IRQ_BASE; 178 irq -= RM200_I8259A_IRQ_BASE;
179 mask = ~(1 << irq); 179 mask = ~(1 << irq);
180 spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); 180 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
181 rm200_cached_irq_mask &= mask; 181 rm200_cached_irq_mask &= mask;
182 if (irq & 8) 182 if (irq & 8)
183 writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR); 183 writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
184 else 184 else
185 writeb(cached_master_mask, rm200_pic_master + PIC_IMR); 185 writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
186 spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags); 186 raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
187} 187}
188 188
189static inline int sni_rm200_i8259A_irq_real(unsigned int irq) 189static inline int sni_rm200_i8259A_irq_real(unsigned int irq)
@@ -216,7 +216,7 @@ void sni_rm200_mask_and_ack_8259A(unsigned int irq)
216 216
217 irq -= RM200_I8259A_IRQ_BASE; 217 irq -= RM200_I8259A_IRQ_BASE;
218 irqmask = 1 << irq; 218 irqmask = 1 << irq;
219 spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); 219 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
220 /* 220 /*
221 * Lightweight spurious IRQ detection. We do not want 221 * Lightweight spurious IRQ detection. We do not want
222 * to overdo spurious IRQ handling - it's usually a sign 222 * to overdo spurious IRQ handling - it's usually a sign
@@ -247,7 +247,7 @@ handle_real_irq:
247 writeb(cached_master_mask, rm200_pic_master + PIC_IMR); 247 writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
248 writeb(0x60+irq, rm200_pic_master + PIC_CMD); 248 writeb(0x60+irq, rm200_pic_master + PIC_CMD);
249 } 249 }
250 spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags); 250 raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
251 return; 251 return;
252 252
253spurious_8259A_irq: 253spurious_8259A_irq:
@@ -298,7 +298,7 @@ static inline int sni_rm200_i8259_irq(void)
298{ 298{
299 int irq; 299 int irq;
300 300
301 spin_lock(&sni_rm200_i8259A_lock); 301 raw_spin_lock(&sni_rm200_i8259A_lock);
302 302
303 /* Perform an interrupt acknowledge cycle on controller 1. */ 303 /* Perform an interrupt acknowledge cycle on controller 1. */
304 writeb(0x0C, rm200_pic_master + PIC_CMD); /* prepare for poll */ 304 writeb(0x0C, rm200_pic_master + PIC_CMD); /* prepare for poll */
@@ -325,7 +325,7 @@ static inline int sni_rm200_i8259_irq(void)
325 irq = -1; 325 irq = -1;
326 } 326 }
327 327
328 spin_unlock(&sni_rm200_i8259A_lock); 328 raw_spin_unlock(&sni_rm200_i8259A_lock);
329 329
330 return likely(irq >= 0) ? irq + RM200_I8259A_IRQ_BASE : irq; 330 return likely(irq >= 0) ? irq + RM200_I8259A_IRQ_BASE : irq;
331} 331}
@@ -334,7 +334,7 @@ void sni_rm200_init_8259A(void)
334{ 334{
335 unsigned long flags; 335 unsigned long flags;
336 336
337 spin_lock_irqsave(&sni_rm200_i8259A_lock, flags); 337 raw_spin_lock_irqsave(&sni_rm200_i8259A_lock, flags);
338 338
339 writeb(0xff, rm200_pic_master + PIC_IMR); 339 writeb(0xff, rm200_pic_master + PIC_IMR);
340 writeb(0xff, rm200_pic_slave + PIC_IMR); 340 writeb(0xff, rm200_pic_slave + PIC_IMR);
@@ -352,7 +352,7 @@ void sni_rm200_init_8259A(void)
352 writeb(cached_master_mask, rm200_pic_master + PIC_IMR); 352 writeb(cached_master_mask, rm200_pic_master + PIC_IMR);
353 writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR); 353 writeb(cached_slave_mask, rm200_pic_slave + PIC_IMR);
354 354
355 spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags); 355 raw_spin_unlock_irqrestore(&sni_rm200_i8259A_lock, flags);
356} 356}
357 357
358/* 358/*