On Thu, Apr 14, 2005 at 07:40:52PM +0200, Daniel Ritz wrote:
> could you apply this debuggin patch instead and send me the dmsg output
> plus output from lspci, lspci -vvvn. also please send me a hexdump from
> /proc/bus/pci/00/0b.0
>
> i think i'm having some 3coms around so maybe i can reprocude :)
>
> rgds
> -daniel
>
> --- 1.81/drivers/pci/pci.c 2005-03-03 08:17:57 +01:00
> +++ edited/drivers/pci/pci.c 2005-04-05 00:37:13 +02:00
> @@ -268,7 +268,7 @@
> return -EIO;
>
> pci_read_config_word(dev,pm + PCI_PM_PMC,&pmc);
> - if ((pmc & PCI_PM_CAP_VER_MASK) > 2) {
> + if ((pmc & PCI_PM_CAP_VER_MASK) > 3) {
> printk(KERN_DEBUG
> "PCI: %s has unsupported PM cap regs version (%u)\n",
> pci_name(dev), pmc & PCI_PM_CAP_VER_MASK);
> @@ -287,15 +287,19 @@
> * This doesn't affect PME_Status, disables PME_En, and
> * sets PowerState to 0.
> */
> - if (dev->current_state >= PCI_D3hot)
> + printk("PCI: %s pmc: %04x, current_state, pmcsr: %08x", pci_name(dev),
> pmc, dev->current_state);
> + if (dev->current_state >= PCI_D3hot) {
> pmcsr = 0;
> - else {
> + printk("0");
> + } else {
> pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr);
> + printk("%04x", pmcsr);
> pmcsr &= ~PCI_PM_CTRL_STATE_MASK;
> pmcsr |= state;
> }
>
> /* enter specified state */
> + printk(", new: %04x\n", pmcsr);
> pci_write_config_word(dev, pm + PCI_PM_CTRL, pmcsr);
>
> /* Mandatory power management transition delays */
>
I send Daniel the info privately, but just for your convenience, I put
it also on my homepage [1].
-Peter
[1]: http://wwwcip.informatik.uni-erlangen.de/~siprbaum/kernel/
...._1.txt = working version (first boot)
...._2.txt = non working version (second boot)
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