Re: [PATCH V3 00/21] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI
From: Sinan Kaya
Date: Thu Jan 14 2016 - 10:38:32 EST
On 1/14/2016 10:29 AM, Mark Salter wrote:
On Wed, 2016-01-13 at 14:20 +0100, Tomasz Nowicki wrote:
> IO resources on Mustang get disabled unless I do:
> @@ -126,9 +126,10 @@ static void acpi_dev_ioresource_flags(struct
> resource *res, u64 len, if (!acpi_dev_resource_len_valid(res->start,
> res->end, len, true)) res->flags |= IORESOURCE_DISABLED |
> +#if 0 if (res->end >= 0x10003) res->flags |= IORESOURCE_DISABLED |
> IORESOURCE_UNSET; - +#endif
> res->end is way beyond 0x10003 on Mustang:
> pci_bus 0000:00: root bus resource [io 0x0000-0xffff window] (bus
> address [0x10000000-0x1000ffff])
Join the club. I complained about this and I got the message that we just do what Intel does.
See Arnd Bergmann's reply.
[PATCH V2 00/23] MMCONFIG refactoring and support for ARM64 PCI hostbridge init based on ACPI
1/12/2016 9:30 AM
It is an artificial limit coming from the x86 world introduced into common code.
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