[PATCH v2] powerpc/fsl-booke: declare tlbcam_index for use in c file

[Kumar Gala]

I'll pick this up, but wondering about this patch vs Trent's changes  
to remove this.

How is KVM on fsl-booke using this value?

- k

On Jan 4, 2009, at 12:57 AM, Liu Yu wrote:

> Hi Kumar,
>
> Can I get your ack?
> So that I can submit this patch through KVM tree.
>
>
>> -----Original Message-----
>> From: Liu Yu-B13201
>> Sent: Friday, December 19, 2008 10:35 AM
>> To: kvm-ppc at vger.kernel.org; linuxppc-dev at ozlabs.org
>> Cc: hollisb at us.ibm.com; Gala Kumar-B11780; Piepho
>> Trent-B16872; Wood Scott-B07421; Liu Yu-B13201
>> Subject: [PATCH v2] powerpc/fsl-booke: declare tlbcam_index
>> for use in c file
>>
>> KVM on E500 platform currently utilize TLB1 entries without
>> bothering host,
>> that is using unused TLB1 entries.
>>
>> So, KVM needs to read tlbcam_index to know exactly
>> which TLB1 entry is unused by host.
>>
>> Signed-off-by: Liu Yu <yu.liu at freescale.com>
>> ---
>> [v2]
>> Remove num_tlbcam_entries declare and read from SPRN_TLB1CFG
>> in KVM instead.
>>
>> arch/powerpc/include/asm/mmu-fsl-booke.h |    2 ++
>> 1 files changed, 2 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/powerpc/include/asm/mmu-fsl-booke.h
>> b/arch/powerpc/include/asm/mmu-fsl-booke.h
>> index 925d93c..c86af6c 100644
>> --- a/arch/powerpc/include/asm/mmu-fsl-booke.h
>> +++ b/arch/powerpc/include/asm/mmu-fsl-booke.h
>> @@ -73,6 +73,8 @@
>>
>> #ifndef __ASSEMBLY__
>>
>> +extern unsigned int tlbcam_index;
>> +
>> typedef struct {
>> 	unsigned long id;
>> 	unsigned long vdso_base;
>> -- 
>> 1.5.4
>>
>>
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