diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2007-05-01 22:32:58 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-04 17:59:07 -0700 |
| commit | 217f6710c275118af1008bb1447d244be52d2dc3 (patch) | |
| tree | afcc692e42ea227090384c6973ed2c97a8636040 /arch/m68k/mac/baboon.c | |
| parent | cd713ddc93bf2f612783aea8eff6d0df6107765e (diff) | |
| download | op-kernel-dev-217f6710c275118af1008bb1447d244be52d2dc3.zip op-kernel-dev-217f6710c275118af1008bb1447d244be52d2dc3.tar.gz | |
m68k: Mac IRQ cleanup
There are no slow IRQs on Macs since Roman Zippel's IRQ reorganisation that
went into 2.6.16 and removed mac_irq_list[] and the do_mac_irq_list()
dispatcher. (They were implemented in do_mac_irq_list() by lowering the IPL.)
Hence there's no more use for mutual exclusion in the Mac interrupt
dispatchers. Remove it.
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m68k/mac/baboon.c')
| -rw-r--r-- | arch/m68k/mac/baboon.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c index 8ea7498..673a108 100644 --- a/arch/m68k/mac/baboon.c +++ b/arch/m68k/mac/baboon.c @@ -22,7 +22,7 @@ /* #define DEBUG_BABOON */ /* #define DEBUG_IRQS */ -int baboon_present,baboon_active; +int baboon_present; volatile struct baboon *baboon; irqreturn_t baboon_irq(int, void *); @@ -45,7 +45,6 @@ void __init baboon_init(void) baboon = (struct baboon *) BABOON_BASE; baboon_present = 1; - baboon_active = 0; printk("Baboon detected at %p\n", baboon); } @@ -70,9 +69,9 @@ irqreturn_t baboon_irq(int irq, void *dev_id) unsigned char events; #ifdef DEBUG_IRQS - printk("baboon_irq: mb_control %02X mb_ifr %02X mb_status %02X active %02X\n", + printk("baboon_irq: mb_control %02X mb_ifr %02X mb_status %02X\n", (uint) baboon->mb_control, (uint) baboon->mb_ifr, - (uint) baboon->mb_status, baboon_active); + (uint) baboon->mb_status); #endif if (!(events = baboon->mb_ifr & 0x07)) @@ -81,11 +80,9 @@ irqreturn_t baboon_irq(int irq, void *dev_id) irq_num = IRQ_BABOON_0; irq_bit = 1; do { - if (events & irq_bit/* & baboon_active*/) { - baboon_active &= ~irq_bit; + if (events & irq_bit) { baboon->mb_ifr &= ~irq_bit; m68k_handle_int(irq_num); - baboon_active |= irq_bit; } irq_bit <<= 1; irq_num++; @@ -99,21 +96,18 @@ irqreturn_t baboon_irq(int irq, void *dev_id) } void baboon_irq_enable(int irq) { - int irq_idx = IRQ_IDX(irq); - #ifdef DEBUG_IRQUSE printk("baboon_irq_enable(%d)\n", irq); #endif - baboon_active |= (1 << irq_idx); + /* FIXME: figure out how to mask and unmask baboon interrupt sources */ + enable_irq(IRQ_NUBUS_C); } void baboon_irq_disable(int irq) { - int irq_idx = IRQ_IDX(irq); - #ifdef DEBUG_IRQUSE printk("baboon_irq_disable(%d)\n", irq); #endif - baboon_active &= ~(1 << irq_idx); + disable_irq(IRQ_NUBUS_C); } void baboon_irq_clear(int irq) { |
