* Does CN68XX still need DCache prefetch workaround?
@ 2016-02-22 18:22 Yang Shi
2016-02-22 18:22 ` Yang Shi
2016-02-22 18:38 ` David Daney
0 siblings, 2 replies; 5+ messages in thread
From: Yang Shi @ 2016-02-22 18:22 UTC (permalink / raw)
To: david.daney; +Cc: linux-mips
I David,
When I booted up 4.5-rc4 kernel on CN68xx board, both pass 1.1 and pass
2.2 reports:
Kernel panic - not syncing: OCTEON II DCache prefetch workaround not in
place (cfa00000).
Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).
According to the description of he option, it should just have impact on
63xx pass 1.x. It looks confusing.
Any hint is appreciated?
Thanks,
Yang
^ permalink raw reply [flat|nested] 5+ messages in thread
* Does CN68XX still need DCache prefetch workaround?
2016-02-22 18:22 Does CN68XX still need DCache prefetch workaround? Yang Shi
@ 2016-02-22 18:22 ` Yang Shi
2016-02-22 18:38 ` David Daney
1 sibling, 0 replies; 5+ messages in thread
From: Yang Shi @ 2016-02-22 18:22 UTC (permalink / raw)
To: david.daney; +Cc: linux-mips
I David,
When I booted up 4.5-rc4 kernel on CN68xx board, both pass 1.1 and pass
2.2 reports:
Kernel panic - not syncing: OCTEON II DCache prefetch workaround not in
place (cfa00000).
Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).
According to the description of he option, it should just have impact on
63xx pass 1.x. It looks confusing.
Any hint is appreciated?
Thanks,
Yang
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Does CN68XX still need DCache prefetch workaround?
2016-02-22 18:22 Does CN68XX still need DCache prefetch workaround? Yang Shi
2016-02-22 18:22 ` Yang Shi
@ 2016-02-22 18:38 ` David Daney
2016-02-22 18:40 ` Yang Shi
1 sibling, 1 reply; 5+ messages in thread
From: David Daney @ 2016-02-22 18:38 UTC (permalink / raw)
To: Yang Shi; +Cc: david.daney, linux-mips
On 02/22/2016 10:22 AM, Yang Shi wrote:
> I David,
>
> When I booted up 4.5-rc4 kernel on CN68xx board, both pass 1.1 and pass
> 2.2 reports:
>
> Kernel panic - not syncing: OCTEON II DCache prefetch workaround not in
> place (cfa00000).
> Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).
>
> According to the description of he option, it should just have impact on
> 63xx pass 1.x. It looks confusing.
>
The name of the Kconfig variable is CAVIUM_CN63XXP1. It turns out that
it is also needed for somethings that are not cn63xxP1. It is a bit
confusing, but as of now we decided not to rename the Kconfig variable.
> Any hint is appreciated?
Enable it and see what happens.
>
> Thanks,
> Yang
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Does CN68XX still need DCache prefetch workaround?
2016-02-22 18:38 ` David Daney
@ 2016-02-22 18:40 ` Yang Shi
2016-02-22 18:40 ` Yang Shi
0 siblings, 1 reply; 5+ messages in thread
From: Yang Shi @ 2016-02-22 18:40 UTC (permalink / raw)
To: David Daney; +Cc: david.daney, linux-mips
On 2/22/2016 10:38 AM, David Daney wrote:
> On 02/22/2016 10:22 AM, Yang Shi wrote:
>> I David,
>>
>> When I booted up 4.5-rc4 kernel on CN68xx board, both pass 1.1 and pass
>> 2.2 reports:
>>
>> Kernel panic - not syncing: OCTEON II DCache prefetch workaround not in
>> place (cfa00000).
>> Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).
>>
>> According to the description of he option, it should just have impact on
>> 63xx pass 1.x. It looks confusing.
>>
>
> The name of the Kconfig variable is CAVIUM_CN63XXP1. It turns out
> that it is also needed for somethings that are not cn63xxP1. It is a
> bit confusing, but as of now we decided not to rename the Kconfig
> variable.
OK, however, it would sound better to add more comments or notes about
this in Kconfig help text?
>
>> Any hint is appreciated?
>
> Enable it and see what happens.
Once I enable it could bootup without problem.
Thanks,
Yang
>
>>
>> Thanks,
>> Yang
>>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Does CN68XX still need DCache prefetch workaround?
2016-02-22 18:40 ` Yang Shi
@ 2016-02-22 18:40 ` Yang Shi
0 siblings, 0 replies; 5+ messages in thread
From: Yang Shi @ 2016-02-22 18:40 UTC (permalink / raw)
To: David Daney; +Cc: david.daney, linux-mips
On 2/22/2016 10:38 AM, David Daney wrote:
> On 02/22/2016 10:22 AM, Yang Shi wrote:
>> I David,
>>
>> When I booted up 4.5-rc4 kernel on CN68xx board, both pass 1.1 and pass
>> 2.2 reports:
>>
>> Kernel panic - not syncing: OCTEON II DCache prefetch workaround not in
>> place (cfa00000).
>> Please build kernel with proper options (CONFIG_CAVIUM_CN63XXP1).
>>
>> According to the description of he option, it should just have impact on
>> 63xx pass 1.x. It looks confusing.
>>
>
> The name of the Kconfig variable is CAVIUM_CN63XXP1. It turns out
> that it is also needed for somethings that are not cn63xxP1. It is a
> bit confusing, but as of now we decided not to rename the Kconfig
> variable.
OK, however, it would sound better to add more comments or notes about
this in Kconfig help text?
>
>> Any hint is appreciated?
>
> Enable it and see what happens.
Once I enable it could bootup without problem.
Thanks,
Yang
>
>>
>> Thanks,
>> Yang
>>
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-02-22 18:40 UTC | newest]
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2016-02-22 18:22 Does CN68XX still need DCache prefetch workaround? Yang Shi
2016-02-22 18:22 ` Yang Shi
2016-02-22 18:38 ` David Daney
2016-02-22 18:40 ` Yang Shi
2016-02-22 18:40 ` Yang Shi
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