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authorRalf Baechle <ralf@linux-mips.org>2007-10-11 23:46:09 +0100
committerRalf Baechle <ralf@linux-mips.org>2007-10-11 23:46:09 +0100
commit91a2fcc88634663e9e13dcdfad0e4a860e64aeee (patch)
treea86b936f1057207d46e5a07ed826052ff640869a /arch/mips/au1000
parent90b02340dcc6ce00bf22c48f4865915f5989e5e4 (diff)
[MIPS] Consolidate all variants of MIPS cp0 timer interrupt handlers.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/au1000')
-rw-r--r--arch/mips/au1000/common/irq.c4
-rw-r--r--arch/mips/au1000/common/time.c40
2 files changed, 1 insertions, 43 deletions
diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index db2ba0dbfd5..47949d6f2c1 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -65,8 +65,6 @@
#define EXT_INTC1_REQ1 5 /* IP 5 */
#define MIPS_TIMER_IP 7 /* IP 7 */
-extern void mips_timer_interrupt(void);
-
void (*board_init_irq)(void);
static DEFINE_SPINLOCK(irq_lock);
@@ -635,7 +633,7 @@ asmlinkage void plat_irq_dispatch(void)
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
if (pending & CAUSEF_IP7)
- mips_timer_interrupt();
+ ll_timer_interrupt(63);
else if (pending & CAUSEF_IP2)
intc0_req0_irqdispatch();
else if (pending & CAUSEF_IP3)
diff --git a/arch/mips/au1000/common/time.c b/arch/mips/au1000/common/time.c
index fb1fd50f19a..726c340460b 100644
--- a/arch/mips/au1000/common/time.c
+++ b/arch/mips/au1000/common/time.c
@@ -64,48 +64,8 @@ static unsigned long last_pc0, last_match20;
static DEFINE_SPINLOCK(time_lock);
-static inline void ack_r4ktimer(unsigned long newval)
-{
- write_c0_compare(newval);
-}
-
-/*
- * There are a lot of conceptually broken versions of the MIPS timer interrupt
- * handler floating around. This one is rather different, but the algorithm
- * is provably more robust.
- */
unsigned long wtimer;
-void mips_timer_interrupt(void)
-{
- int irq = 63;
-
- irq_enter();
- kstat_this_cpu.irqs[irq]++;
-
- if (r4k_offset == 0)
- goto null;
-
- do {
- kstat_this_cpu.irqs[irq]++;
- do_timer(1);
-#ifndef CONFIG_SMP
- update_process_times(user_mode(get_irq_regs()));
-#endif
- r4k_cur += r4k_offset;
- ack_r4ktimer(r4k_cur);
-
- } while (((unsigned long)read_c0_count()
- - r4k_cur) < 0x7fffffff);
-
- irq_exit();
- return;
-
-null:
- ack_r4ktimer(0);
- irq_exit();
-}
-
#ifdef CONFIG_PM
irqreturn_t counter0_irq(int irq, void *dev_id)
{