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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-07-03 05:32:51 -0400
committerPaul Mackerras <paulus@samba.org>2006-07-03 05:55:12 -0400
commitb9e5b4e6a991a5a6d521f2e20a65835404b4169f (patch)
treea0ac972faae4bf9133f576d842667bb134190341 /arch/powerpc/platforms/chrp
parent5a43a066b11ac2fe84cf67307f20b83bea390f83 (diff)
[POWERPC] Use the genirq framework
This adapts the generic powerpc interrupt handling code, and all of the platforms except for the embedded 6xx machines, to use the new genirq framework. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/chrp')
-rw-r--r--arch/powerpc/platforms/chrp/setup.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 1f1771b212b..a5dffc8d93a 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -315,6 +315,21 @@ chrp_event_scan(unsigned long unused)
315 jiffies + event_scan_interval); 315 jiffies + event_scan_interval);
316} 316}
317 317
318void chrp_8259_cascade(unsigned int irq, struct irq_desc *desc,
319 struct pt_regs *regs)
320{
321 unsigned int max = 100;
322
323 while(max--) {
324 int irq = i8259_irq(regs);
325 if (max == 99)
326 desc->chip->eoi(irq);
327 if (irq < 0)
328 break;
329 generic_handle_irq(irq, regs);
330 };
331}
332
318/* 333/*
319 * Finds the open-pic node and sets up the mpic driver. 334 * Finds the open-pic node and sets up the mpic driver.
320 */ 335 */
@@ -402,7 +417,7 @@ static void __init chrp_find_openpic(void)
402 } 417 }
403 418
404 mpic_init(chrp_mpic); 419 mpic_init(chrp_mpic);
405 mpic_setup_cascade(NUM_ISA_INTERRUPTS, i8259_irq_cascade, NULL); 420 set_irq_chained_handler(NUM_ISA_INTERRUPTS, chrp_8259_cascade);
406} 421}
407 422
408#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON) 423#if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON)