* Copyright (C) 2003 PMC-Sierra Inc.
* Author: Manish Lachwani (lachwani@pmc-sierra.com)
*
+ * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org)
+ *
* 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
*
* Second level Interrupt handlers for the PMC-Sierra Titan/Yosemite board
*/
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/kernel_stat.h>
#define HYPERTRANSPORT_INTC 0x7a /* INTC# */
#define HYPERTRANSPORT_INTD 0x7b /* INTD# */
-extern asmlinkage void titan_handle_int(void);
-extern void jaguar_mailbox_irq(struct pt_regs *);
-
/*
* Handle hypertransport & SMP interrupts. The interrupt lines are scarce.
* For interprocessor interrupts, the best thing to do is to use the INTMSG
* register. We use the same external interrupt line, i.e. INTB3 and monitor
* another status bit
*/
-asmlinkage void ll_ht_smp_irq_handler(int irq, struct pt_regs *regs)
+static void ll_ht_smp_irq_handler(int irq)
{
u32 status = OCD_READ(RM9000x2_OCD_INTP0STATUS4);
}
#endif /* CONFIG_HT_LEVEL_TRIGGER */
- do_IRQ(irq, regs);
+ do_IRQ(irq);
}
-asmlinkage void do_extended_irq(struct pt_regs *regs)
+asmlinkage void plat_irq_dispatch(void)
{
- unsigned int intcontrol = read_c0_intcontrol();
unsigned int cause = read_c0_cause();
unsigned int status = read_c0_status();
- unsigned int pending_sr, pending_ic;
-
- pending_sr = status & cause & 0xff00;
- pending_ic = (cause >> 8) & intcontrol & 0xff00;
-
- if (pending_ic & (1 << 13))
- do_IRQ(13, regs);
-
+ unsigned int pending = cause & status;
+
+ if (pending & STATUSF_IP7) {
+ do_IRQ(7);
+ } else if (pending & STATUSF_IP2) {
+#ifdef CONFIG_HYPERTRANSPORT
+ ll_ht_smp_irq_handler(2);
+#else
+ do_IRQ(2);
+#endif
+ } else if (pending & STATUSF_IP3) {
+ do_IRQ(3);
+ } else if (pending & STATUSF_IP4) {
+ do_IRQ(4);
+ } else if (pending & STATUSF_IP5) {
+#ifdef CONFIG_SMP
+ titan_mailbox_irq();
+#else
+ do_IRQ(5);
+#endif
+ } else if (pending & STATUSF_IP6) {
+ do_IRQ(4);
+ }
}
#ifdef CONFIG_KGDB
{
clear_c0_status(ST0_IM);
- set_except_vector(0, titan_handle_int);
mips_cpu_irq_init(0);
rm7k_cpu_irq_init(8);
rm9k_cpu_irq_init(12);
register_gdb_console();
#endif
}
-
-#ifdef CONFIG_KGDB
-/*
- * The 16550 DUART has two ports, but is allocated one IRQ
- * for the serial console. Hence, a generic framework for
- * serial IRQ routing in place. Currently, just calls the
- * do_IRQ fuction. But, going in the future, need to check
- * DUART registers for channel A and B, then decide the
- * appropriate action
- */
-asmlinkage void yosemite_kgdb_irq(int irq, struct pt_regs *regs)
-{
- do_IRQ(irq, regs);
-}
-#endif