fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / mips / kernel / irq-msc01.c

diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c
index 3f653c7..bcaad66 100644 (file)
--- a/arch/mips/kernel/irq-msc01.c
+++ b/arch/mips/kernel/irq-msc01.c
@@ -1,16 +1,17 @@
 /*
- * Copyright (c) 2004 MIPS Inc
- * Author: chris@mips.com
- *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
+ *
+ * Copyright (c) 2004 MIPS Inc
+ * Author: chris@mips.com
+ *
+ * Copyright (C) 2004, 06 Ralf Baechle <ralf@linux-mips.org>
  */
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
-#include <asm/ptrace.h>
 #include <linux/sched.h>
 #include <linux/kernel_stat.h>
 #include <asm/io.h>
@@ -43,31 +44,6 @@ static inline void unmask_msc_irq(unsigned int irq)
                MSCIC_WRITE(MSC01_IC_ENAH, 1<<(irq - irq_base - 32));
 }
 
-/*
- * Enables the IRQ on SOC-it
- */
-static void enable_msc_irq(unsigned int irq)
-{
-       unmask_msc_irq(irq);
-}
-
-/*
- * Initialize the IRQ on SOC-it
- */
-static unsigned int startup_msc_irq(unsigned int irq)
-{
-       unmask_msc_irq(irq);
-       return 0;
-}
-
-/*
- * Disables the IRQ on SOC-it
- */
-static void disable_msc_irq(unsigned int irq)
-{
-       mask_msc_irq(irq);
-}
-
 /*
  * Masks and ACKs an IRQ
  */
@@ -76,6 +52,11 @@ static void level_mask_and_ack_msc_irq(unsigned int irq)
        mask_msc_irq(irq);
        if (!cpu_has_veic)
                MSCIC_WRITE(MSC01_IC_EOI, 0);
+#ifdef CONFIG_MIPS_MT_SMTC
+       /* This actually needs to be a call into platform code */
+       if (irq_hwmask[irq] & ST0_IM)
+               set_c0_status(irq_hwmask[irq] & ST0_IM);
+#endif /* CONFIG_MIPS_MT_SMTC */
 }
 
 /*
@@ -92,6 +73,10 @@ static void edge_mask_and_ack_msc_irq(unsigned int irq)
                MSCIC_WRITE(MSC01_IC_SUP+irq*8, r | ~MSC01_IC_SUP_EDGE_BIT);
                MSCIC_WRITE(MSC01_IC_SUP+irq*8, r);
        }
+#ifdef CONFIG_MIPS_MT_SMTC
+       if (irq_hwmask[irq] & ST0_IM)
+               set_c0_status(irq_hwmask[irq] & ST0_IM);
+#endif /* CONFIG_MIPS_MT_SMTC */
 }
 
 /*
@@ -106,14 +91,14 @@ static void end_msc_irq(unsigned int irq)
 /*
  * Interrupt handler for interrupts coming from SOC-it.
  */
-void ll_msc_irq(struct pt_regs *regs)
+void ll_msc_irq(void)
 {
        unsigned int irq;
 
        /* read the interrupt vector register */
        MSCIC_READ(MSC01_IC_VEC, irq);
        if (irq < 64)
-               do_IRQ(irq + irq_base, regs);
+               do_IRQ(irq + irq_base);
        else {
                /* Ignore spurious interrupt */
        }
@@ -126,25 +111,23 @@ msc_bind_eic_interrupt (unsigned int irq, unsigned int set)
                    (irq<<MSC01_IC_RAMW_ADDR_SHF) | (set<<MSC01_IC_RAMW_DATA_SHF));
 }
 
-#define shutdown_msc_irq       disable_msc_irq
-
-struct hw_interrupt_type msc_levelirq_type = {
+struct irq_chip msc_levelirq_type = {
        .typename = "SOC-it-Level",
-       .startup = startup_msc_irq,
-       .shutdown = shutdown_msc_irq,
-       .enable = enable_msc_irq,
-       .disable = disable_msc_irq,
        .ack = level_mask_and_ack_msc_irq,
+       .mask = mask_msc_irq,
+       .mask_ack = level_mask_and_ack_msc_irq,
+       .unmask = unmask_msc_irq,
+       .eoi = unmask_msc_irq,
        .end = end_msc_irq,
 };
 
-struct hw_interrupt_type msc_edgeirq_type = {
+struct irq_chip msc_edgeirq_type = {
        .typename = "SOC-it-Edge",
-       .startup =startup_msc_irq,
-       .shutdown = shutdown_msc_irq,
-       .enable = enable_msc_irq,
-       .disable = disable_msc_irq,
        .ack = edge_mask_and_ack_msc_irq,
+       .mask = mask_msc_irq,
+       .mask_ack = edge_mask_and_ack_msc_irq,
+       .unmask = unmask_msc_irq,
+       .eoi = unmask_msc_irq,
        .end = end_msc_irq,
 };
 
@@ -165,14 +148,14 @@ void __init init_msc_irqs(unsigned int base, msc_irqmap_t *imp, int nirq)
 
                switch (imp->im_type) {
                case MSC01_IRQ_EDGE:
-                       irq_desc[base+n].handler = &msc_edgeirq_type;
+                       set_irq_chip(base+n, &msc_edgeirq_type);
                        if (cpu_has_veic)
                                MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT);
                        else
                                MSCIC_WRITE(MSC01_IC_SUP+n*8, MSC01_IC_SUP_EDGE_BIT | imp->im_lvl);
                        break;
                case MSC01_IRQ_LEVEL:
-                       irq_desc[base+n].handler = &msc_levelirq_type;
+                       set_irq_chip(base+n, &msc_levelirq_type);
                        if (cpu_has_veic)
                                MSCIC_WRITE(MSC01_IC_SUP+n*8, 0);
                        else