答复: IRQ-Tables once again
YhLu at tyan.com
Tue Jan 20 15:26:00 CET 2004
Good, it's more readble.
发件人: Stefan Reinauer [mailto:stepan at suse.de]
发送时间: 2004年1月20日 4:58
收件人: linuxbios at clustermatic.org
主题: IRQ-Tables once again
I'm trying to factor the IRQ Table generation a bit, since the
current way to write an IRQ Table plain sucks. This means
* gather all information before actually generating the table
* gather information in a readable and adjustable way.
I juggled with the Arima Hdama irq table, since this one seems to
work. (See attachment)
Currently I have a couple of defines that are hardcoded into the file.
This should maybe be moved to the motherboard configuration files.
(At least I would move them and the IRQ_SLOT_COUNT together)
#define IRQ_ROUTER_BUS 1
#define IRQ_ROUTER_DEVFN PCI_DEVFN(4,3)
#define IRQ_ROUTER_VENDOR 0x1022
#define IRQ_ROUTER_DEVICE 0x746b
#define AVAILABLE_IRQS 0xdef8
Then I substituted the longish irq table entries with a macro
IRQ_SLOT which takes the following arguments:
* slot number
* 4* irq link line id
/* PCI Slot 1 */
IRQ_SLOT (1, 3,1,0, 2,3,4,1 ),
/* Let Linux know about bus 1 */
IRQ_SLOT (0, 1,4,3, 0,0,0,0 ),
If there are no objections, I am going to make this change in the code.
Who else is having IRQ Table trouble here?
Stefan Reinauer, SUSE LINUX AG
Teamleader Architecture Development
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