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| author | Thiemo Seufer <ths@networkno.de> | 2006-07-05 14:26:38 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2006-07-13 21:26:05 +0100 |
| commit | 6e61e85b0980f7b88cd5c4b822386ed00dd7e295 (patch) | |
| tree | 8541546073f5ea9131f881196519f28fc047ecb8 /arch/mips/sibyte | |
| parent | fc5d2d279ff820172a698706d33e733d4578bd6c (diff) | |
| download | linux-stable-6e61e85b0980f7b88cd5c4b822386ed00dd7e295.tar.gz linux-stable-6e61e85b0980f7b88cd5c4b822386ed00dd7e295.tar.bz2 linux-stable-6e61e85b0980f7b88cd5c4b822386ed00dd7e295.zip | |
[MIPS] Sibyte: Improve interrupt latency again for sb1250/bcm1480
this patch restores the behaviour of the old (assembly-written)
interrupt handler, the handler is left as soon as a single interrupt
cause is handled.
Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/sibyte')
| -rw-r--r-- | arch/mips/sibyte/bcm1480/irq.c | 7 | ||||
| -rw-r--r-- | arch/mips/sibyte/sb1250/irq.c | 10 |
2 files changed, 9 insertions, 8 deletions
diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c index 2c5afb4c2ef3..cab78fb5a9ac 100644 --- a/arch/mips/sibyte/bcm1480/irq.c +++ b/arch/mips/sibyte/bcm1480/irq.c @@ -502,22 +502,23 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs) #ifdef CONFIG_SIBYTE_BCM1480_PROF if (pending & CAUSEF_IP7) /* Cpu performance counter interrupt */ sbprof_cpu_intr(exception_epc(regs)); + else #endif if (pending & CAUSEF_IP4) bcm1480_timer_interrupt(regs); #ifdef CONFIG_SMP - if (pending & CAUSEF_IP3) + else if (pending & CAUSEF_IP3) bcm1480_mailbox_interrupt(regs); #endif #ifdef CONFIG_KGDB - if (pending & CAUSEF_IP6) + else if (pending & CAUSEF_IP6) bcm1480_kgdb_interrupt(regs); /* KGDB (uart 1) */ #endif - if (pending & CAUSEF_IP2) { + else if (pending & CAUSEF_IP2) { unsigned long long mask_h, mask_l; unsigned long base; diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c index 8d49cb52d192..1de71adec6c6 100644 --- a/arch/mips/sibyte/sb1250/irq.c +++ b/arch/mips/sibyte/sb1250/irq.c @@ -460,25 +460,25 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs) pending = read_c0_cause(); #ifdef CONFIG_SIBYTE_SB1250_PROF - if (pending & CAUSEF_IP7) { /* Cpu performance counter interrupt */ + if (pending & CAUSEF_IP7) /* Cpu performance counter interrupt */ sbprof_cpu_intr(exception_epc(regs)); - } + else #endif if (pending & CAUSEF_IP4) sb1250_timer_interrupt(regs); #ifdef CONFIG_SMP - if (pending & CAUSEF_IP3) + else if (pending & CAUSEF_IP3) sb1250_mailbox_interrupt(regs); #endif #ifdef CONFIG_KGDB - if (pending & CAUSEF_IP6) /* KGDB (uart 1) */ + else if (pending & CAUSEF_IP6) /* KGDB (uart 1) */ sb1250_kgdb_interrupt(regs); #endif - if (pending & CAUSEF_IP2) { + else if (pending & CAUSEF_IP2) { unsigned long long mask; /* |