Questions about ioport-assignments

[Dominik Brodowski]

Hey,

On Sun, Apr 18, 2010 at 10:11:41AM +0900, Komuro wrote:
> 
> Hi,
> 
> >Hm, I don't get (yet) where you're heading to -- could you provide me with a
> >patch and/or more extensive explanation?
> 
> OK. Here is the patch.
> 
> pci_bus_alloc_resource calls pcmcia_align with res->start=0xc000.
> To avoid this , we need to call pcmcia_align manually.
> 
> 
> 
> --- linux-2.6.34-rc4-git4/drivers/pcmcia/rsrc_nonstatic.c.orig	2010-04-18 09:52:12.000000000 +0900
> +++ linux-2.6.34-rc4-git4/drivers/pcmcia/rsrc_nonstatic.c	2010-04-18 09:56:09.000000000 +0900
> @@ -697,6 +697,9 @@ static struct resource *nonstatic_find_i
>  	struct pcmcia_align_data data;
>  	unsigned long min = base;
>  	int ret;
> +#if defined(CONFIG_X86)
> +	resource_size_t start;
> +#endif
>  
>  	if (align == 0)
>  		align = 0x10000;
> @@ -705,6 +708,16 @@ static struct resource *nonstatic_find_i
>  	data.offset = base & data.mask;
>  	data.map = &s_data->io_db;
>  
> +#if defined(CONFIG_X86)
> +	start = pcmcia_align(&data, res, num, align);
> +
> +	if (start) {
> +		res->start = start;
> +		res->end = start+num-1;
> +		return res;
> +	}
> +#endif
> +
>  #ifdef CONFIG_PCI
>  	if (s->cb_dev) {
>  		ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1,

No, that can't be right -- see commits 509b0865 and 7a96e87d , both based on
reports from you, on why we need to call pci_bus_alloc_resource...

Best,
	Dominik