On Friday, September 06, 2013 10:24:43 AM Lan Tianyu wrote:
> This patch is to check mem address space's acpi resource caching ability
> and set prefetch flag of struct resource if it's prefetchable.
> 
> Signed-off-by: Lan Tianyu <tianyu....@intel.com>

Looks good to me.

Thanks,
Rafael


> ---
>  drivers/acpi/resource.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
> index b7201fc..929f416 100644
> --- a/drivers/acpi/resource.c
> +++ b/drivers/acpi/resource.c
> @@ -202,6 +202,9 @@ bool acpi_dev_resource_address_space(struct acpi_resource 
> *ares,
>               res->flags = acpi_dev_memresource_flags(len,
>                                               addr.info.mem.write_protect,
>                                               window);
> +
> +             if (addr.info.mem.caching == ACPI_PREFETCHABLE_MEMORY)
> +                     res->flags |= IORESOURCE_PREFETCH;
>               break;
>       case ACPI_IO_RANGE:
>               io_decode = addr.granularity == 0xfff ?
> 
-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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