MIPS: i8259: Convert IRQ controller lock to raw spinlock.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/include/asm/i8259.h b/arch/mips/include/asm/i8259.h
index 8572a2d..c7e2784 100644 (file)
--- a/arch/mips/include/asm/i8259.h
+++ b/arch/mips/include/asm/i8259.h
@@ -35,7 +35,7 @@
 #define SLAVE_ICW4_DEFAULT     0x01
 #define PIC_ICW4_AEOI          2
 
-extern spinlock_t i8259A_lock;
+extern raw_spinlock_t i8259A_lock;
 
 extern int i8259A_irq_pending(unsigned int irq);
 extern void make_8259A_irq(unsigned int irq);
@@ -51,7 +51,7 @@ static inline int i8259_irq(void)
 {
        int irq;
 
-       spin_lock(&i8259A_lock);
+       raw_spin_lock(&i8259A_lock);
 
        /* Perform an interrupt acknowledge cycle on controller 1. */
        outb(0x0C, PIC_MASTER_CMD);             /* prepare for poll */
@@ -78,7 +78,7 @@ static inline int i8259_irq(void)
                        irq = -1;
        }
 
-       spin_unlock(&i8259A_lock);
+       raw_spin_unlock(&i8259A_lock);
 
        return likely(irq >= 0) ? irq + I8259A_IRQ_BASE : irq;
 }

diff --git a/arch/mips/kernel/i8259.c b/arch/mips/kernel/i8259.c
index 01c0885..2779911 100644 (file)
--- a/arch/mips/kernel/i8259.c
+++ b/arch/mips/kernel/i8259.c
@@ -29,7 +29,7 @@
  */
 
 static int i8259A_auto_eoi = -1;
-DEFINE_SPINLOCK(i8259A_lock);
+DEFINE_RAW_SPINLOCK(i8259A_lock);
 static void disable_8259A_irq(unsigned int irq);
 static void enable_8259A_irq(unsigned int irq);
 static void mask_and_ack_8259A(unsigned int irq);
@@ -65,13 +65,13 @@ static void disable_8259A_irq(unsigned int irq)
 
        irq -= I8259A_IRQ_BASE;
        mask = 1 << irq;
-       spin_lock_irqsave(&i8259A_lock, flags);
+       raw_spin_lock_irqsave(&i8259A_lock, flags);
        cached_irq_mask |= mask;
        if (irq & 8)
                outb(cached_slave_mask, PIC_SLAVE_IMR);
        else
                outb(cached_master_mask, PIC_MASTER_IMR);
-       spin_unlock_irqrestore(&i8259A_lock, flags);
+       raw_spin_unlock_irqrestore(&i8259A_lock, flags);
 }
 
 static void enable_8259A_irq(unsigned int irq)
@@ -81,13 +81,13 @@ static void enable_8259A_irq(unsigned int irq)
 
        irq -= I8259A_IRQ_BASE;
        mask = ~(1 << irq);
-       spin_lock_irqsave(&i8259A_lock, flags);
+       raw_spin_lock_irqsave(&i8259A_lock, flags);
        cached_irq_mask &= mask;
        if (irq & 8)
                outb(cached_slave_mask, PIC_SLAVE_IMR);
        else
                outb(cached_master_mask, PIC_MASTER_IMR);
-       spin_unlock_irqrestore(&i8259A_lock, flags);
+       raw_spin_unlock_irqrestore(&i8259A_lock, flags);
 }
 
 int i8259A_irq_pending(unsigned int irq)
@@ -98,12 +98,12 @@ int i8259A_irq_pending(unsigned int irq)
 
        irq -= I8259A_IRQ_BASE;
        mask = 1 << irq;
-       spin_lock_irqsave(&i8259A_lock, flags);
+       raw_spin_lock_irqsave(&i8259A_lock, flags);
        if (irq < 8)
                ret = inb(PIC_MASTER_CMD) & mask;
        else
                ret = inb(PIC_SLAVE_CMD) & (mask >> 8);
-       spin_unlock_irqrestore(&i8259A_lock, flags);
+       raw_spin_unlock_irqrestore(&i8259A_lock, flags);
 
        return ret;
 }
@@ -151,7 +151,7 @@ static void mask_and_ack_8259A(unsigned int irq)
 
        irq -= I8259A_IRQ_BASE;
        irqmask = 1 << irq;
-       spin_lock_irqsave(&i8259A_lock, flags);
+       raw_spin_lock_irqsave(&i8259A_lock, flags);
        /*
         * Lightweight spurious IRQ detection. We do not want
         * to overdo spurious IRQ handling - it's usually a sign
@@ -183,7 +183,7 @@ handle_real_irq:
                outb(0x60+irq, PIC_MASTER_CMD); /* 'Specific EOI to master */
        }
        smtc_im_ack_irq(irq);
-       spin_unlock_irqrestore(&i8259A_lock, flags);
+       raw_spin_unlock_irqrestore(&i8259A_lock, flags);
        return;
 
 spurious_8259A_irq:
@@ -264,7 +264,7 @@ static void init_8259A(int auto_eoi)
 
        i8259A_auto_eoi = auto_eoi;
 
-       spin_lock_irqsave(&i8259A_lock, flags);
+       raw_spin_lock_irqsave(&i8259A_lock, flags);
 
        outb(0xff, PIC_MASTER_IMR);     /* mask all of 8259A-1 */
        outb(0xff, PIC_SLAVE_IMR);      /* mask all of 8259A-2 */
@@ -298,7 +298,7 @@ static void init_8259A(int auto_eoi)
        outb(cached_master_mask, PIC_MASTER_IMR); /* restore master IRQ mask */
        outb(cached_slave_mask, PIC_SLAVE_IMR);   /* restore slave IRQ mask */
 
-       spin_unlock_irqrestore(&i8259A_lock, flags);
+       raw_spin_unlock_irqrestore(&i8259A_lock, flags);
 }
 
 /*

diff --git a/arch/mips/loongson/lemote-2f/irq.c b/arch/mips/loongson/lemote-2f/irq.c
index 77d32f9..882dfcd 100644 (file)
--- a/arch/mips/loongson/lemote-2f/irq.c
+++ b/arch/mips/loongson/lemote-2f/irq.c
@@ -38,7 +38,7 @@ int mach_i8259_irq(void)
        irq = -1;
 
        if ((LOONGSON_INTISR & LOONGSON_INTEN) & LOONGSON_INT_BIT_INT0) {
-               spin_lock(&i8259A_lock);
+               raw_spin_lock(&i8259A_lock);
                isr = inb(PIC_MASTER_CMD) &
                        ~inb(PIC_MASTER_IMR) & ~(1 << PIC_CASCADE_IR);
                if (!isr)
@@ -56,7 +56,7 @@ int mach_i8259_irq(void)
                        if (~inb(PIC_MASTER_ISR) & 0x80)
                                irq = -1;
                }
-               spin_unlock(&i8259A_lock);
+               raw_spin_unlock(&i8259A_lock);
        }
 
        return irq;