* What possible values can pci_root_num take ??
@ 2012-04-22 15:25 Onkar N Mahajan
2012-04-22 18:56 ` Yinghai Lu
0 siblings, 1 reply; 2+ messages in thread
From: Onkar N Mahajan @ 2012-04-22 15:25 UTC (permalink / raw)
To: linux-pci
What are the possible values that can be taken
by pci_root_num ?? Where can I find this information ( any specs docs ?)
Regards,
Onkar
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: What possible values can pci_root_num take ??
2012-04-22 15:25 What possible values can pci_root_num take ?? Onkar N Mahajan
@ 2012-04-22 18:56 ` Yinghai Lu
0 siblings, 0 replies; 2+ messages in thread
From: Yinghai Lu @ 2012-04-22 18:56 UTC (permalink / raw)
To: Onkar N Mahajan; +Cc: linux-pci
On Sun, Apr 22, 2012 at 8:25 AM, Onkar N Mahajan <kernzap@gmail.com> wrote:
> What are the possible values that can be taken
> by pci_root_num ?? Where can I find this information ( any specs docs ?)
>
from amd Hypertransport (HT) chain number: 4 at most at that time.
arch/x86/pci/bus_numa.h::
/* 4 at this time, it may become to 32 */
#define PCI_ROOT_NR 4
extern int pci_root_num;
extern struct pci_root_info pci_root_info[PCI_ROOT_NR];
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2012-04-22 15:25 What possible values can pci_root_num take ?? Onkar N Mahajan
2012-04-22 18:56 ` Yinghai Lu
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