Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue

On Sun, Dec 23, 2007 at 10:15:10PM +0100, Martin Mares wrote:
> >  - During that probe, you set a flag if any device has capabilities that
> > extend beyond 0xff.
> 
> Can this work?  The extended capabilities are not linked to the normal
> ones in any way.

Good point.

OTOH, we *do* have a flag for the extended capabilities - dev->cfg_size.
Obviously, the pci probe *without* mmconfig will set it to 256 for *all*
devices.
So Linus' idea of enabling mmconfig per-device makes a lot of sense in the
end - if mmconfig works, it just sets dev->cfg_size to 4096.
Without bloating the struct pci_dev or screwing up innocent arches...

Ivan.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

---

• References:
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Arjan van de Ven <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Linus Torvalds <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Jeff Garzik <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Linus Torvalds <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Jeff Garzik <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Linus Torvalds <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Jeff Garzik <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Linus Torvalds <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Benjamin Herrenschmidt <[email protected]>
  • Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
    • From: Martin Mares <[email protected]>

• Prev by Date: Re: [PATCH 2.6.24-rc5-mm 2/3] gpiolib: add Generic IRQ support for 16-bit PCA9539 GPIO expander
• Next by Date: Re: 2.6.24-rc6-mm1: suspend broken on HP nx6325 due to cpufreq changes
• Previous by thread: Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
• Next by thread: Re: [patch] Make MMCONFIG space (extended PCI config space) a driver opt-in issue
• Index(es):
  • Date
  • Thread

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]