[U-Boot] [PATCH 7/9] x86: ivybridge: Fix car_uninit() to correctly set run state

Simon Glass sjg at chromium.org
Mon Oct 19 04:27:23 CEST 2015


Hi Bin,

On 18 October 2015 at 20:23, Bin Meng <bmeng.cn at gmail.com> wrote:
> Hi Simon,
>
> On Mon, Oct 19, 2015 at 5:55 AM, Simon Glass <sjg at chromium.org> wrote:
>> At present a missing $ causes this code to hang when using the MRC cache/
>> Fix it.
>>
>> Signed-off-by: Simon Glass <sjg at chromium.org>
>
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
>
>> ---
>>
>>  arch/x86/cpu/ivybridge/car.S | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/x86/cpu/ivybridge/car.S b/arch/x86/cpu/ivybridge/car.S
>> index 770ef17..b75c2a5 100644
>> --- a/arch/x86/cpu/ivybridge/car.S
>> +++ b/arch/x86/cpu/ivybridge/car.S
>> @@ -188,7 +188,7 @@ car_uninit:
>>         wrmsr
>>
>>         /* Disable the no-eviction run state */
>> -       movl    NOEVICTMOD_MSR, %ecx
>> +       movl    $NOEVICTMOD_MSR, %ecx
>
> I am wondering why compiler does not complain this.
>

I suppose it just uses the value at that address.

>>         rdmsr
>>         andl    $~2, %eax
>>         wrmsr
>> --

Regards,
Simon


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