[U-Boot] [PATCH 3/8] sun8i: Extend stack size to allow for up to 8 CPUs

[Timothy Pearson]

On 05/17/2016 12:21 AM, Chen-Yu Tsai wrote:
> Hi,
> 
> On Tue, May 17, 2016 at 10:38 AM,  <tpearson at raptorengineering.com> wrote:
>> ---
>>  arch/arm/cpu/armv7/psci.S             | 1 +
>>  arch/arm/cpu/armv7/sunxi/psci_sun6i.S | 4 ++--
>>  arch/arm/cpu/armv7/sunxi/psci_sun7i.S | 4 ++--
>>  3 files changed, 5 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm/cpu/armv7/psci.S b/arch/arm/cpu/armv7/psci.S
>> index 87c0c0b..18a0cc2 100644
>> --- a/arch/arm/cpu/armv7/psci.S
>> +++ b/arch/arm/cpu/armv7/psci.S
>> @@ -203,6 +203,7 @@ ENTRY(psci_get_cpu_stack_top)
>>         add     r5, r5, #0x2000                 @ Skip two pages
>>         lsr     r5, r5, #12                     @ Align to start of page
> 
> Why not just change this line instead?
> 
> ChenYu
> 

That would break page alignment, no?  The idea is to align the lower
stack range address to a page (possibly wasting up to slightly less than
a page in the process); changing this line would result in two pages
wasted and the same amount of space available for the stack.

-- 
Timothy Pearson
Raptor Engineering
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