Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart

[linux-drm-fsl-dcu.git] / arch / mips / sibyte / bcm1480 / irq.c

diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c
index a0222fa4416cb62537302e01c4b5ed6a3436d491..1dc5d05d8962067fc9ef206ee019b2da90c0e6f5 100644 (file)
--- a/arch/mips/sibyte/bcm1480/irq.c
+++ b/arch/mips/sibyte/bcm1480/irq.c
@@ -25,9 +25,9 @@
 #include <linux/kernel_stat.h>
 
 #include <asm/errno.h>
+#include <asm/irq_regs.h>
 #include <asm/signal.h>
 #include <asm/system.h>
-#include <asm/ptrace.h>
 #include <asm/io.h>
 
 #include <asm/sibyte/bcm1480_regs.h>
@@ -45,11 +45,9 @@
  */
 
 
-#define shutdown_bcm1480_irq   disable_bcm1480_irq
 static void end_bcm1480_irq(unsigned int irq);
 static void enable_bcm1480_irq(unsigned int irq);
 static void disable_bcm1480_irq(unsigned int irq);
-static unsigned int startup_bcm1480_irq(unsigned int irq);
 static void ack_bcm1480_irq(unsigned int irq);
 #ifdef CONFIG_SMP
 static void bcm1480_set_affinity(unsigned int irq, cpumask_t mask);
@@ -84,12 +82,11 @@ extern char sb1250_duart_present[];
 #endif
 
 static struct irq_chip bcm1480_irq_type = {
-       .typename = "BCM1480-IMR",
-       .startup = startup_bcm1480_irq,
-       .shutdown = shutdown_bcm1480_irq,
-       .enable = enable_bcm1480_irq,
-       .disable = disable_bcm1480_irq,
+       .name = "BCM1480-IMR",
        .ack = ack_bcm1480_irq,
+       .mask = disable_bcm1480_irq,
+       .mask_ack = ack_bcm1480_irq,
+       .unmask = enable_bcm1480_irq,
        .end = end_bcm1480_irq,
 #ifdef CONFIG_SMP
        .set_affinity = bcm1480_set_affinity
@@ -188,14 +185,6 @@ static void bcm1480_set_affinity(unsigned int irq, cpumask_t mask)
 
 /*****************************************************************************/
 
-static unsigned int startup_bcm1480_irq(unsigned int irq)
-{
-       bcm1480_unmask_irq(bcm1480_irq_owner[irq], irq);
-
-       return 0;               /* never anything pending */
-}
-
-
 static void disable_bcm1480_irq(unsigned int irq)
 {
        bcm1480_mask_irq(bcm1480_irq_owner[irq], irq);
@@ -270,22 +259,14 @@ void __init init_bcm1480_irqs(void)
 {
        int i;
 
-       for (i = 0; i < NR_IRQS; i++) {
-               irq_desc[i].status = IRQ_DISABLED;
-               irq_desc[i].action = 0;
-               irq_desc[i].depth = 1;
-               if (i < BCM1480_NR_IRQS) {
-                       irq_desc[i].chip = &bcm1480_irq_type;
-                       bcm1480_irq_owner[i] = 0;
-               } else {
-                       irq_desc[i].chip = &no_irq_chip;
-               }
+       for (i = 0; i < BCM1480_NR_IRQS; i++) {
+               set_irq_chip(i, &bcm1480_irq_type);
+               bcm1480_irq_owner[i] = 0;
        }
 }
 
 
-static irqreturn_t bcm1480_dummy_handler(int irq, void *dev_id,
-       struct pt_regs *regs)
+static irqreturn_t bcm1480_dummy_handler(int irq, void *dev_id)
 {
        return IRQ_NONE;
 }
@@ -453,7 +434,7 @@ void __init arch_init_irq(void)
 #define duart_out(reg, val)     csr_out32(val, IOADDR(A_DUART_CHANREG(kgdb_port,reg)))
 #define duart_in(reg)           csr_in32(IOADDR(A_DUART_CHANREG(kgdb_port,reg)))
 
-void bcm1480_kgdb_interrupt(struct pt_regs *regs)
+static void bcm1480_kgdb_interrupt(void)
 {
        /*
         * Clear break-change status (allow some time for the remote
@@ -464,16 +445,15 @@ void bcm1480_kgdb_interrupt(struct pt_regs *regs)
        mdelay(500);
        duart_out(R_DUART_CMD, V_DUART_MISC_CMD_RESET_BREAK_INT |
                                M_DUART_RX_EN | M_DUART_TX_EN);
-       set_async_breakpoint(&regs->cp0_epc);
+       set_async_breakpoint(&get_irq_regs()->cp0_epc);
 }
 
 #endif         /* CONFIG_KGDB */
 
-extern void bcm1480_timer_interrupt(struct pt_regs *regs);
-extern void bcm1480_mailbox_interrupt(struct pt_regs *regs);
-extern void bcm1480_kgdb_interrupt(struct pt_regs *regs);
+extern void bcm1480_timer_interrupt(void);
+extern void bcm1480_mailbox_interrupt(void);
 
-asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
+asmlinkage void plat_irq_dispatch(void)
 {
        unsigned int pending;
 
@@ -482,25 +462,25 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
        write_c0_compare(read_c0_count());
 #endif
 
-       pending = read_c0_cause();
+       pending = read_c0_cause() & read_c0_status();
 
 #ifdef CONFIG_SIBYTE_BCM1480_PROF
        if (pending & CAUSEF_IP7)       /* Cpu performance counter interrupt */
-               sbprof_cpu_intr(exception_epc(regs));
+               sbprof_cpu_intr();
        else
 #endif
 
        if (pending & CAUSEF_IP4)
-               bcm1480_timer_interrupt(regs);
+               bcm1480_timer_interrupt();
 
 #ifdef CONFIG_SMP
        else if (pending & CAUSEF_IP3)
-               bcm1480_mailbox_interrupt(regs);
+               bcm1480_mailbox_interrupt();
 #endif
 
 #ifdef CONFIG_KGDB
        else if (pending & CAUSEF_IP6)
-               bcm1480_kgdb_interrupt(regs);           /* KGDB (uart 1) */
+               bcm1480_kgdb_interrupt();               /* KGDB (uart 1) */
 #endif
 
        else if (pending & CAUSEF_IP2) {
@@ -521,9 +501,9 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
 
                if (mask_h) {
                        if (mask_h ^ 1)
-                               do_IRQ(fls64(mask_h) - 1, regs);
+                               do_IRQ(fls64(mask_h) - 1);
                        else
-                               do_IRQ(63 + fls64(mask_l), regs);
+                               do_IRQ(63 + fls64(mask_l));
                }
        }
 }