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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-07-03 07:36:01 -0400
committerPaul Mackerras <paulus@samba.org>2006-07-03 07:36:01 -0400
commit0ebfff1491ef85d41ddf9c633834838be144f69f (patch)
tree5b469a6d61a9fcfbf94e7b6d411e544dbdec8dec /drivers/char/hvsi.c
parentf63e115fb50db39706b955b81e3375ef6bab2268 (diff)
[POWERPC] Add new interrupt mapping core and change platforms to use it
This adds the new irq remapper core and removes the old one. Because there are some fundamental conflicts with the old code, like the value of NO_IRQ which I'm now setting to 0 (as per discussions with Linus), etc..., this commit also changes the relevant platform and driver code over to use the new remapper (so as not to cause difficulties later in bisecting). This patch removes the old pre-parsing of the open firmware interrupt tree along with all the bogus assumptions it made to try to renumber interrupts according to the platform. This is all to be handled by the new code now. For the pSeries XICS interrupt controller, a single remapper host is created for the whole machine regardless of how many interrupt presentation and source controllers are found, and it's set to match any device node that isn't a 8259. That works fine on pSeries and avoids having to deal with some of the complexities of split source controllers vs. presentation controllers in the pSeries device trees. The powerpc i8259 PIC driver now always requests the legacy interrupt range. It also has the feature of being able to match any device node (including NULL) if passed no device node as an input. That will help porting over platforms with broken device-trees like Pegasos who don't have a proper interrupt tree. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'drivers/char/hvsi.c')
-rw-r--r--drivers/char/hvsi.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 8dc205b275e3..56612a2dca6b 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -1299,13 +1299,12 @@ static int __init hvsi_console_init(void)
1299 hp->inbuf_end = hp->inbuf; 1299 hp->inbuf_end = hp->inbuf;
1300 hp->state = HVSI_CLOSED; 1300 hp->state = HVSI_CLOSED;
1301 hp->vtermno = *vtermno; 1301 hp->vtermno = *vtermno;
1302 hp->virq = virt_irq_create_mapping(irq[0]); 1302 hp->virq = irq_create_mapping(NULL, irq[0], 0);
1303 if (hp->virq == NO_IRQ) { 1303 if (hp->virq == NO_IRQ) {
1304 printk(KERN_ERR "%s: couldn't create irq mapping for 0x%x\n", 1304 printk(KERN_ERR "%s: couldn't create irq mapping for 0x%x\n",
1305 __FUNCTION__, hp->virq); 1305 __FUNCTION__, irq[0]);
1306 continue; 1306 continue;
1307 } else 1307 }
1308 hp->virq = irq_offset_up(hp->virq);
1309 1308
1310 hvsi_count++; 1309 hvsi_count++;
1311 } 1310 }